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Vetta HD

Service Dept.

6033 De Soto Ave.

Woodland Hills, CA 91367

P. 818-575-3600

F. 818-676-1585

E. service@line6.com

***WARNING!!!***

Dangerous and lethal potentials are

present in this product!!

Before proceeding any further, the service center

is warned that caution must be used when

troubleshooting, repairing and testing the circuits

in this unit. High voltage AC line-connected

potentials are present in the circuits used in this

unit.

All work performed on this unit must be done

with an isolation transformer connected between

the power circuit’s input and the AC line in order

to prevent electric shock, especially when

connecting test equipment to the circuit. Extreme

caution must be used when working on this

product!!!

Summary of content (128 pages)

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Service Dept. 6033 De Soto Ave. Woodland Hills, CA 91367 P. 818-575-3600 F. 818-676-1585 E. service@line6.com ***WARNING!!!*** Dangerous and lethal potentials are present in this product!! Before proceeding any further, the service center is warned that caution must be used when troubleshooting, repairing and testing the circuits in this unit. High voltage AC line-connected potentials are present in the circuits used in this unit.
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AX3 Universal Power Amp Rev C.
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AX3 Universal Power Amp Rev C.
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AX3 Universal Power Amp Rev C.
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HDII LINE FILTER Rev B.
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AX3 HEAD SPKR OUT REV A.
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AX3 COMBO UI Left Rev C.
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AX3 COMBO UI Left Rev C.
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AX3 COMBO UI Left Rev C.
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AX3_COMBO_UI_Right_REV_A.
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AX3_COMBO_UI_Right_REV_A.
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AX3_GUITAR IN_REV_A.
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LINE 6 Vetta HD Parts List Items: 99 VETTA HD US Level Seq Component-Item Component-Description Qty-Per-Parent ==================================================================================================================================== Parent Item: 99 VETTA HD US AMP Vetta Head 120V US 1 10 21-30-0009-2 CAB DIL 10 PIN .100 PITCH 10 EA .0 A Y N 1.000000 1 20 21-30-0026 CAB DIL RBN 26 PIN 8.0 10 EA .0 A Y N 1.000000 1 30 21-34-0006 PITCH CAB SIL 2 PIN 1.95" .156" 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 1 170 30-00-1012 SCREW #10-32 X 1/2 PHILLIPS PAN ZINC 10 EA .0 A Y N 4.000000 1 180 30-00-1124 SCR 10-32 x 1 1/2 LG OVAL CT SK PHH STL BLK 10 EA .0 A Y N 4.000000 1 200 30-00-4250 SCR SHEET METAL PAN HEAD SLF TAP. 4 x.250" w/BLK OXIDE 10 EA .0 A Y N 4.000000 1 210 30-00-8375 SCR SHEET METAL #8 x.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 1 380 30-51-0040 EXP SLOT COV 7.7x2.2 20 GA 10 EA .0 A Y N 1.000000 STL BLK PWD COAT 1 390 30-51-0076 COV CHAS VETTA HD 27.3x7.8 EG STL ELEC GALV 10 EA .0 A Y N 1.000000 1 400 30-51-0093 CLIP MAIN BEZEL .52x.26 EG STL 10 EA .0 A Y N 2.000000 1 410 30-51-0095 CHASSIS BRACE 7.7x6.7 EG STEEL 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 1 580 40-25-0103 STICKER VERSION 1.1 VETTA 10 EA .0 A Y N 1.000000 1 590 40-25-0150 Sticker, Vetta Disclaimer 10 EA .0 A Y N 1.000000 1 600 40-25-0254 LABEL LOGO LINE 6 PREMIUM 10 EA .0 A Y N 1.000000 1 610 40-25-2000 STICKER OUTPUT AX3 REV-A 10 EA .0 A Y N 1.000000 1 620 50-00-0039 ASSY KEYCAPS AMP SEL VETTA 10 EA .
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 100 21-20-0205 HDR PCB MT SIL 5-PIN x 2mm FEMALE SHRD VERT MT TH 10 EA .0 A Y N 1.000000 2 110 30-18-3030 10 EA .0 A Y N 1.000000 PCBA OUTPUT SPEAKER 10 EA .0 A Y N 1.000000 CAP NPO 1nF 50V 5% 0805 10 EA .0 A Y N 4.000000 Ref: J27 CLIP GND PCB .30x.30x.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 40 01-00-0472 RES 4.7K 5% 0805 10 EA .0 A Y N 9.000000 2 50 01-00-0752 Ref: R13-14,R20-26 RES 7.5K 5% 0805 10 EA .0 A Y N 1.000000 2 97 01-24-1100 Ref: R3 RES 110R 1% 0805 10 EA .0 A Y N 7.000000 2 98 01-24-11R8 Ref: R17-19,R29-30,R37-38 RES 11.8R 1% 0805 10 EA .0 A Y N 5.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 210 12-64-1543 IC ADC 10 BIT 11 CHANNEL SM TLC1543CDW 10 EA .0 A Y N 1.000000 2 Ref: U10 220 12-72-0050 IC PRECISION TEMPERATURE SENSOR SOT-23 SM LM50CIM3 10 EA .0 A Y N 1.000000 2 Ref: U11 230 15-62-0002 IC 74HC02 QUAD 2-INPUT NOR SO-14 SM 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 401 30-15-0044 2 10 EA .0 A Y N 1.000000 402 30-27-0003 BTN FR CHAN SEL UI PNL VETTA 1.058x5.484 BLK ABS NA/ 10 EA .0 A Y N 1.000000 2 403 30-27-0004 BUT FR AMP BTN UI PNL VETTA 1.058x1.615 BLK ABS N/A 10 EA .0 A Y N 1.000000 2 405 30-65-0002 TAPE POLYESTER w/RBR ADHESIVE 6mil 19mm X 10mm 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 10 01-48-0103 POT MONO 10KB LINEAR TAPER 10 EA .0 A Y N 1.000000 25 mm D-SHAFT 2 Ref: R64 20 01-48-8103 POT MONO 10KB LINEAR TAPER CENTER DETENT 25mm D-SHFT 2 30 03-52-0104 2 10 EA .0 A Y N 3.000000 10 EA .0 A Y N 5.000000 Ref: C21-22,C27-29 40 06-34-0016 DIODE SWITCHING 75V 200mA 6nS SOT-23 SM BAS16LT1 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 20 01-00-0104 RES 100K 5% 0805 10 EA .0 A Y N 4.000000 2 25 01-00-0105 Ref: R8,R26,R175,R177 RES 1M 5% 0805 10 EA .0 A Y N 2.000000 2 30 01-00-0122 Ref: R20,R38 RES 1.2K 5% 0805 10 EA .0 A Y N 2.000000 2 35 01-00-0132 Ref: R107,R120 RES 1.3K 5% 0805 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 95 01-00-0470 RES 47R 5% 0805 10.000000 2 100 01-00-0471 Ref: R89,R92,R103-105,R108-109,R113,R117,R119 RES 470R 5% 0805 10 EA .0 A Y N 3.000000 2 105 01-00-0472 Ref: R9,R202-203 RES 4.7K 5% 0805 10 EA .0 A Y N 2.000000 2 110 01-00-0473 Ref: R121, R180 RES 47K 5% 0805 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 180 01-24-3401 RES 3.40K 1% 0805 10 EA .0 A Y N 3.000000 2 185 01-24-4321 Ref: R62,R76,R25 RES 4.32K 1% 0805 10 EA .0 A Y N 1.000000 2 190 01-24-4751 Ref: R87 RES 4.75K 1% 0805 10 EA .0 A Y N 26.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 270 03-52-0102 CAP X7R 1nF 50V 20% 0805 10 EA .0 A Y N 4.000000 2 272 03-52-0103 Ref: C84,C89,C91,C93 CAP X7R 10nF 50V 20% 0805 10 EA .0 A Y N 1.000000 2 275 03-52-0104 Ref: c176 CAP X7R 0.1uF 50V 20% 0805 10 EA .0 A Y N 6.000000 2 280 03-52-0224 Ref: C64,C82,C85,C87-88,C164 CAP X7R 0.22uf 25V 20% 0805 10 EA .
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 320 11-10-0601 FERRITE BEAD 600R @100MHZ 1206 10 EA .0 A Y N 29.000000 2 Ref: L1-25,L27-30 325 11-40-2430 BATTERY 3V LITHIUM COSMOS CR2430 3P-TH 10 EA .0 A Y N 1.000000 Ref: BAT2 IC REG +3.3V T0-220 TH 10 EA .0 A Y N 1.000000 2 330 12-02-1086 LM1086 2 335 12-02-7805 Ref: U8 IC REG +5v 1.5 Amp TH 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 395 15-64-0245 IC 74HCT245 OCTAL BUF LINE DRIVER 3-S 8 SM 10 EA .0 A Y N 1.000000 2 Ref: U30 400 15-64-0541 IC 74HCT 541 OCTAL BUF/DRIVER 3-S 8 SM 10 EA .0 A Y N 1.000000 2 Ref: U31 405 15-65-0000 IC 74LCX00 LOW VOLTAGE CMOS QUAD 2 INPUT NAND SO-14 SM 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 465 21-04-5075 JACK DIN 5-PIN FEMALE MIDI 10 EA .0 A Y N 2.000000 PCB-MNT RT-ANG LN 05075 2 Ref: P1-2 470 21-08-0013 JACK XLR MALE PCB MNT RT ANG TH NEUTRIK-NC3MAH 10 EA .0 A Y N 2.000000 2 Ref: J20-21 475 21-16-0045 JACK RJ-45 8-PIN FEMALE PCB-MNT RT-ANG 10 EA .0 A Y N 1.000000 2 Ref: J19 480 21-20-0030 HDR PCB MT DIL 30-PIN 2x15x .
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 560 30-51-0057 HEAT SINK, BLACK ANODIZED AL, WAKEFIELD #287-1AB 10 EA .0 A Y N 1.000000 Ref: P5 2 570 45-02-0001 IC PROGRAMMED FLASH v1.10 AX3 HEAD 10 EA .0 A Y N 1.000000 2 575 45-06-0000 10 EA .0 A Y N 1.000000 10 EA .0 A Y N 1.000000 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 30 30-30-0002 CORNER, PRTCTR STL PWD CT 10 EA .0 A Y N 8.000000 MATTE SIL MFR:C1824PCS 1 3 55 30-36-0003 COVER VINYL BLACK 23oz. TAURUS/BLACK SHEETING 3 70 30-75-0008 BLACK 730 50-00-1102 10 YD .0 A Y N .750000 FOOT RUBBER 1.50" I.D. x .75"H 10 EA .0 A Y N 4.000000 ASSY FINAL POWER SUPPLY AX3 HD 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 140 50-00-0102 PCBA POWER SUPPLY VETTA HD 10 EA .0 A Y N 1.000000 3 10 01-00-0100 RES 10R 5% 0805 10 EA .0 A Y N 2.000000 3 20 01-00-0101 Ref: R51-52 RES 100R 5% 0805 10 EA .0 A Y N 5.000000 Ref: R22-23,R38,R53,R59 3 30 01-00-0200 RES 20R 5% 0805 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 122 01-24-1241 RES 1.24K 1% 0805 10 EA .0 A Y N 1.000000 10 EA .0 A Y N 3.000000 Ref: R40 added on ECO# 130403 3 130 01-24-1503 RES 150K 1% 0805 Ref: R10,R18-19,R37 Deleted R37 on ECO# 130403 3 150 01-24-2210 RES 221R 1% 0805 10 EA .0 A Y N 1.000000 3 165 01-24-2322 Ref: R28 RES 23.2K 1% 0805 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 220 01-70-0009 3 10 EA .0 A Y N 1.000000 Ref: PTC1 230 03-00-0331 CAP CER DISC 330pF 1000V 10% TH 6/4.5/5 10 EA .0 A Y N 2.000000 3 Ref: C30-31 240 03-00-0471 CAP CER DISC 470pF 1000V 10% TH 6/4.5/5 10 EA .0 A Y N 2.000000 3 Ref: C29,C32 260 03-10-0228 CAP ELEC 2200uF 10V 20% 105C LowZ 0.04R RADIAL 12.5/25/5 10 EA .
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 360 03-52-0103 CAP X7R 10nF 50V 20% 0805 10 EA .0 A Y N 1.000000 3 365 03-52-0104 Ref: C13 CAP X7R 0.1uF 50V 20% 0805 10 EA .0 A Y N 3.000000 Ref: C23-24,C54 3 370 03-52-0221 CAP X7R 220pF 50V 20% 0805 10 EA .0 A Y N 1.000000 3 380 03-52-0471 Ref: C12 CAP X7R 470pF 50V 20% 0805 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 480 06-32-0160 DIODE ULTRAFAST 600V 1A DO-214A SM MURS160 10 EA .0 A Y N 3.000000 10 EA .0 A Y N 1.000000 Ref: D4,D13,D16 3 482 06-32-1045 DIODE SCHOTTKY 45V 10A D2PAK SM MBRB1045 3 Ref: D11 490 06-34-0016 DIODE SWITCHING 75V 200mA 6nS SOT-23 SM BAS16LT1 10 EA .0 A Y N 9.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 610 21-20-0006 HDR PCB-MT SIL 6-PIN x.100 MALE FRIC-LCK VERT-MT TH 10 EA .0 A Y N 2.000000 3 Ref: H1-2 620 21-20-1566 HDR PCB MT SIL 6-PIN X .156 MALE VERT-MNT FRIC-LOCK 10 EA .0 A Y N 1.000000 3 Ref: H6 630 21-20-1568 HDR PCB MT SIL 8-PIN X .156 MALE VERT-MNT FRIC-LOCK 10 EA .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 2 60 21-14-8301 CON IEC ANGLED 10A IEC320 10 EA .0 A Y N 1.000000 POWER-COMPONENTS 83011172 Ref: J1. 70 21-20-5002 HDR PCB MT SIL 2-PIN x .312 MALE VRT MNT FRIC LOCK TH 2 2 90 21-34-1806 126MM Ref: J2. CABLE EARTHING w/EYELET 18AWG 10 EA .0 A Y N 1.000000 10 EA .0 A Y N 1.000000 .0 A Y N 2.000000 .0 A Y N 1.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 60 01-00-0393 RES 39K 5% 0805 10 EA .0 A Y N 4.000000 3 70 01-00-05R1 Ref: R2,R25,R145-146 RES 5.1R 5% 0805 10 EA .0 A Y N 8.000000 3 Ref: R27-28,R47-48,R59,R95,R115,R136 90 01-20-02R2 RES METAL OXIDE 2.2R 2W 5% TH 10 EA S/B 01-22-02R2 .0 A Y N 2.000000 .0 A Y N 8.000000 3 Ref: R23,R69 100 01-20-0R22 RES METAL OXIDE 0.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 210 01-24-2492 RES 24.9K 1% 0805 10 EA .0 A Y N 2.000000 3 211 01-24-2493 Ref: R57,R114 RES 249K 1% 0805 10 EA .0 A Y N 1.000000 3 215 01-24-2742 Ref: R63 RES 27.4K 1% 0805 10 EA .0 A Y N 8.000000 3 225 01-24-3161 Ref: R9,R17,R20,R53,R75,R93,R110,R139 RES 3.16K 1% 0805 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 330 01-24-9092 3 3 3 3 10 EA .0 A Y N 4.000000 Ref: R29,R45,R68,R82 340 01-70-0080 THERMISTOR 80C PTC TH 100/300/200 10 EA .0 A Y N 1.000000 Ref: RT1 350 03-12-0107 CAP ELEC 100uF 16V 20% RADIAL 6.3/11/5 10 EA .0 A Y N 3.000000 10 EA .0 A Y N 4.000000 10 EA .0 A Y N 1.000000 10 EA .0 A Y N 2.
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 482 03-52-1220 3 10 EA .0 A Y N 2.000000 Ref: C13,c26 490 06-12-1045 DIODE SCHOTTKY 45V 10A TO-220AC TH MBR1045 10 EA .0 A Y N 2.000000 3 Ref: D8,D12 500 06-28-8412 DIODE ZENER 12V 5% 350mW SOT-23 SM BZX84C12 10 EA .0 A Y N 3.000000 3 Ref: D6-7,D17 510 06-28-8418 DIODE ZENER 18V 5% 350mW SOT-23 SM BZX84C18 10 EA .
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LINE 6 Vetta HD Parts List ==================================================================================================================================== 3 620 09-10-4403 TRANS PNP SMALL-SIGNAL MBT4403 10 EA SOT-23 SM A Y N 13.000000 3 Ref: Q6-8,Q15,Q17,Q19-20,Q22,Q25,Q33,Q36,Q44,Q52 630 09-10-4416 TRANS SMALL-SIGNAL SST4416 10 EA .0 A Y N-CHANNEL J-FET N 2.000000 3 640 12-54-0084 3 Ref: Q30-31 IC OP AMP QUAD TL084CD SM .0 10 EA .0 A Y N 1.
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Engineering CONFIDENTIAL VETTA Theory of Operation M.D. / G.S December 20, 2001 - The * sign next to a control signal name indicates that this control is active low The Vetta Combo electronic circuitry is distributed across 8 PCBs: - Vetta Power supply PCB - Vetta Main PCB - Vetta Power amplifier PCB - Vetta U.I. (User Interface) Left PCB - Vetta U.I.
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An inductor can store energy while an ideal transformer transfers energy but does not store it. We won’t buck tradition so we’ll call it a flyback transformer). The basic operation is to apply the input voltage across T2-A by turning on Q3, 15. Energy is stored in T2 and all of the secondary diodes are reverse biased. When Q3, 15 turn off, the stored energy is transferred to the outputs. As the voltage fly’s back, the secondary diodes are forward biased.
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In addition the Z_SELECT signal controls the voltage feedback circuit and allows to select one of two sets for DC output values: On connector J6 to On connector J2 to the Power Amp the Main PCB + LO - LO –HI +20V -20V PS_Valid +8V If Z_SELECT is set at +15V +32 -32 -36 +18 -18 +20 +8 If Z_SELECT is set at 0V (or floating) +45 -45 -50 +18 -18 +30 +8 This feature is used to adjust the voltage rail of the power amps (+LO and – LO) in function of the speaker impedance that they currently drive.
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While the main power is turned ON, the 3.3V supply the SRAM U29. When the main power is OFF the SRAM supply is maintained (to avoid memory lost) by the battery BAT2 voltage. The battery voltage should be above 2.7V. If it drops below the battery should be replaced. The current draw on the battery, while the main power is OFF, should be less than 3.7 micro amps. This will correspond to a maximum voltage of 100mV across R185.
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VETTA Theory of Operation………………Line 6 confidential …………………………….
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Audio system: On the Main PCB: There are four independent audio circuits on the main PCB. The only audio connection between them is through the DSP signal path. Guitar input (Page 7 of 8 of Main PCB schematics): The guitar input is first buffered and amplified on the Guitar Input PCB before it reaches the Main PCB at connector J26 (15Vpp @ 5Vpp at the guitar jack).
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Diodes D3/D4 and D5/D11 protect the op amp U10 from overdriving and electrostatic discharges. R44/R170 and R43/R169 attenuate the FX Return signal from the maximum specified 20Vpp to 5Vpp. R44 and R43 also protect the input of the CODEC ADC in case the voltage would exceed +/-2.5V. C14 and C15 allow the signal to be DC biased at +2.5V by the ADC input. D8/D7 and D10/D9 are not installed on the PCB. The ADC output of CODEC U16 feed DSP#2.
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VETTA Theory of Operation………………Line 6 confidential …………………………….
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Clock system: Except when the digital I/O option board is used (currently not available), all the clocks are contained within the Main PCB. There are two master clocks: CLK_30 (30MHz) and CLK_40 (40MHz). The crystal oscillator Y3 generates the CLK_30 clock. Its only purpose is to set the execution speed of the two Sharc DSP U35 and U36. The crystal oscillator Y1 generates the CLK_40 clock. It has a number of distinct functions: 1).
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VETTA Theory of Operation………………Line 6 confidential …………………………….
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Bus system: DSP #1 U35 and #2 U36 share a common 32 bit wide data bus named DSP_DATA[00:31] and a 24 bit wide address bus named DSP_ADDR[00:23]. These buses allow for communication between the DSPs and with the SDRAM. The SDRAM can be configured either with two 1Meg. by 16 ICs (U37 and U38) or two 4 Meg. by 16 ICs (U39 and U40). The current Main board is stuffed with U37 and U38 (1Meg.) (U39 and U40 are not installed on the PCB).
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VETTA Theory of Operation………………Line 6 confidential …………………………….
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I/O system: The following Input and Output (I/O) signals control the VETTA operations GUITAR_IN_SENSE This input signal is generated on the Guitar Input PCB and read on the Main PCB by an I/O pin of DSP #1. It is high when a jack is plugged in the guitar input and low otherwise.
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Z-SELECT status reading (CURRENTLY UNUSED) The status of the Z_SELECT signal can be read by the microprocessor U27 through the circuit made of Q6 and Q9 (page 8 of 8 of the Main PCB). The reading is done in two paths. - First the BDN-DDATA3 line is read while the Option_Sel_3* line is held low. This first reading brings bit 0 of the Z_Select status. - The BDN-DDATA3 line is read again while the Option_Sel_3* line is held high. This second reading brings bit 1 of the Z_Select status.
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POWERAMP_MUTE * This output signal is generated by an I/O pin of DSP #1. When low it mutes the power amps. It is kept low from the start up of the firmware until all DSP code is downloaded and running, all memory is cleared, and the +/- 15DEL (delayed +/- 15 V supplies) are up. This last item takes about 2 seconds from the time the AC power is turned ON. The POWERAMP_MUTE* signal is combined with the PS_VALID signal (see power supply PCB) by D16, R175 and R174 (page 6 of 8 of the Main PCB).
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temperature (GRAPHICLCD_TEMP line). This voltage is digitized by the U.I. ADC U10 (page 2 of 3) and read by the main PCB microprocessor.
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U.I. LEDs: All of the U.I. LEDs (except the LCD’s backlight LEDs) are multiplexed in a 15 row by 5column matrix. The rows of the matrix are driven by U4, U3 and the associated 16 buffer transistors. The columns of the matrix are directly driven by U9. The multiplexing cycle is about 10ms long. The matrix driver circuit resides on the Left U.I. PCB (page 3 of 3 of left U.I. PCB). U.I. Switches and encoders: All of the U.I. switches are read in a 5 by 7 matrix.
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VETTA Theory of Operation………………Line 6 confidential …………………………….
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Vetta Head Mechanical Assy. Rev. D1 MAY 21, 2002 Engineering Forward and Notes The information in this booklet applies the Vetta Head. This booklet deals with the assembling the major sub-assemblies, the final product, and quality/inspection considerations. See also the Related Electrical assembly documentation, for major considerations in assembling the electrical components of the PCBs (through the soldering process and preparation of the board for addition of custom components).
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Vetta Head Mechanical Assembly Instructions Table of Contents Forward and Notes ........................................................................................................................ 1 Cabinet Assembly .......................................................................................................................... 3 a) Attach the Corners and Rubber Feet.............................................................................. 4 b) Attach foam strips to cabinet.................
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Cabinet Assembly Refer to this graphic throughout the following section for aid in locating the parts discussed. Cabinet Top Cabinet Front Face Cabinet base Cabinet Base The first step in assembling the unit is to assemble the cabinet. In some cases, the vendor of the cabinet may have done this. If the cabinet is fully preassembled, this step may be skipped.
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a) Attach the Corners and Rubber Feet Attach the eight corner protectors to the cabinet (30-30-0001) using 16 - #8 truss head Phillips screw (30-00-0017). Refer to figure below for correct orientation of corner parts. Corner protector (30-30-0001) Note: mount so screws (30-000017) attach at sides and top of cabinet. Attach Rubber Feet (30-75-0008) at base. Use #10 screw (30-00-6839) These screws should have a torque rating of 10 in-lbs. Do not over tighten.
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b) Attach foam strips to cabinet. Attach foam stripping (30-63-4001) to the full length of the inside surface of the cabinet. Apply 2 stacked layers to the inside of front face as shown in the figure below. Inside of front face Overlay 2 strips of foam tape (30-63-4001) Approximate positioning for foam tape c) Test and inspect the Cabinet Assembly When the cabinet assembly is complete, check it for any defects in craftsmanship.
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Power Amp Assembly ITEM 1 2 3 4 5 6 7 8 9 QTY 10 1 10 1 10 12 1 8 4 LINE6 PART NO 30-00-0010 50-00-0101 30-51-0073 30-51-0059-2 30-06-0007 30-03-0002 30-63-5050 30-63-4001 30-63-4005 DESCRIPTION SCREW, 8-32, x562 SCH CAP SCR PCBA AMP 2x100 WATT HEAD AX3 CLAMP, DEVICE, HEAT SINK NUT, HEX, 8-32, .344 WASHER, .293 x .174 x. 040 GAP-PAD VO-SOFT .125"THK x.5 x.5 THERMAL PAD, TO - 247 THERMAL PAD, TO-220 a) Bend Power Components Bend Power Component leads using the Line 6 supplied Bend Tool as shown.
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. To completely bend leads, push a flat edge against lead tips. Completed b) Attach power components and pads Install Power Components (09-06-0250) on bottom side of PCB. Orient the component so that the terminal edge points towards the center of the board, while the opposite face points out toward the edge of the PCB. When properly installed the edge of the Power Component should meet the edge of the PCB. Insure that the components are lying flush against PCB (see figure below).
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Orient power components as shown in figure Thermistor – note orientation when bent down. Install thermistor on bottom side of PCB. Solder down with minimum lead length then bend down toward the center of the PCB (see figure above). Apply the thermal pads flat against the power components and thermistor as shown in the figure below. Be sure to fully cover the device with the pads.
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c) Attach the Power Amp PCB to the Heat Sink Remove the adhesive backing from the thermal pads attached to the power devices in the previous step. Attach the PCB onto the surface of the heat sink centering it vertically and horizontally as shown below. Center the PCB assy to the heat sink vertically and horizontally d) Secure PCB Assy with the device clamps. Finish securing the PCB assy to the heat sink using the device clamps. 10 clamps (30-51-0073) will be used to secure the board.
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View when fully secured: To secure each device clamp follow the figure below. Note the 8 edge clamps bolt though the side hole on the clamp while the 2 central clamps bolt though the central hole in the clamp. NOTE 1: for these 8 clamps, the SHCS passes though the edge hole in the device clamp when securing to the heat sink NOTE 2: for these 2 clamps, the SHCS passes though the center hole in the clamp. These also use 2 Washers (# 3003-0002) per, otherwise the screw will bottom out on the heatsink.
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The Power Supply Assembly Apply RTV at base & sides, of large caps. ITEM QTY LINE6 PART NO 1 1 50-00-0102 PCBA POWER SUPPLY Vetta HD 2 1 30-51-6002 HEAT SINK, HD P/S#2 3 1 N/A (BREAKAWAY) 4 1 30-51-0158 BRACKET, MOUNTING POWER SUPPLY 5 4 30-00-0607 SCR 6-32 x 7/16 LG PHILLIPS PN 6 1 30-51-6001 HEAT SINK, HD 2 P/2#1 7 4 30-15-0404 SHOULDER BUSHING TO-220 VALPAK 8 5 30-03-0425 FLAT WASHER, #4.
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a) PCB Assembly Power Supply Board: (35-00-4000) a) Check orientation of all headers. All headers must be mounted flush to PCB. b) Check orientation of all electrolytic capacitors. c) Check for solder bridges between pins of all through-hole components. d) Verify that the correct parts were installed for all through-hole transistors. e) Install D5 & D10 with vertical lead preparation.
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b) Assemble Power Components to Heat Sink (See Figure 2): a) Clean the Heat Sink installation area by wiping with a clean, lint-free cloth. b) Install components onto Heat Sinks as shown. Properly locate (4) TO-220 diodes and (1) thermistor device. Properly locate (2) TO-247 devices and (1) bridge rectifier. c) These devices shall be parallel to two edges of the Heat Sink as shown. d) The four Thermal Pads should lie flat between the Heat Sink and the TO-220 diodes and TO-247 devices.
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c) Attach Heat Sink / Power Device assembly to PCB a) Secure Heat Sink assemblies with 6 to 8 in-lbs. of torque then solder the device leads. b) Apply RTV to large Capacitors (Dow or GE NovaSil or Novagard.) as shown below & in initial assembly breakdown dwg. (6) #4-40 SHCS (6) P/N 30-00-0440, (6) # 4 Split washer (6) 30-03-0400 Apply a 1 inch long Silicone Bead where the two Capacitors meet (this side and opposite side) And at the base. APPLY RTV SILICON, TO THE SIDES & BASE OF THE LARGE CAPS.
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d) Assemble PCBA & Heat Sink Assembly to Power Supply Bracket: a. b. Assemble the PCBA to the mounting bracket using (4) #6-32 x7/16 (P/N 30-00-0607). Torque the screws to 10-12 in-lbs. Attach the Power Supply Brace with (2) self-tapping 6-32 Pan Head screws (P/N 30-00-1632) as shown. Screw heads shall be fully seated against the Brace.
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The Chassis Assembly Refer to this graphic throughout the following section for aid in locating the parts discussed. ITE QTY M 1 1 LINE6 PART NO 50-00-0109 REV DESCRIPTION B ASSY, ARTWORK, CHASSIS 2 1 50-00-4001 N/A PCBA, FHD 2, LINE FILTER 3 6 30-00-0607 N/A SCR 6-32 x 7/16 LG PHILLIPS PN 4 1 30-51-0040 5 6 30-00-0375 6 1 50-00-0104 7 8 N/A [INCL ASSY] 8 4 30-00-0018 9 1 N/A (REF ONLY) 10 2 30-00-1012 11 1 50-00-0094 12 4 30-00-4250 N/A SCR, #4-32 x .
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a. Attach the Expansion Slot Cover Plate Attach the expansion slot cover (30-51-0040) to the chassis using 6 6-32x.375 black oxide screws (30-00-0375) These screws are to be tightened to a torque setting of 6 in-lbs. Do not over tighten. 6-32 screws Expansion slot cover b. Insert the Line Filter board and Secure Ground Mount the AC receptacle PCB assy (50-00-4001) to the chassis. Ensure that the plastic receptacle passes through the hole in the sheet metal (see figure below). Secure using 3 #6-32 x .
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a) Insert the Power Supply PCB The power supply assembly (50-00-1102) is mounted onto the base of the chassis using 2 #1032 screws (30-00-1012) with a #10 external tooth lockwasher (30-03-0001) mounted on each screw. Tighten to a torque of 10 in/lbs. Note the orientation of the assembly and that it sits upon an embossment on the chassis base. Location for mounting power supply assembly Face sheet metal bracket of heat sink assy towards back face of chassis.
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c) Insert the Power Amp Assembly Insert the heat sink sub-assembly into the chassis (30-51-0043). The unit is secured using 4 #632 self-tapping flat head Phillips screws (30-00-0018). ENSURE THAT THE ASSEMBLY IS PROPERLY ORIENTED IN THE CHASSIS BEFORE SECURING (SEE FIGURE BELOW). Tighten to a torque of 8-10 in/lbs. Install screws though noted holes. NOTE ORIENTATION OF CORRECTLY INSTALLED POWER AMP ASSEMBLY: The 10-pin ribbon connector points towards the expansion slot cover.
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d) Attach Foam Block to the chassis and the Main Board PCB Cut foam block (#30-75-0010) into 1/3 of length. Attach the block to the indicated position adjacent to the RJ45 jack opening (just below the expansion slot cover). Position so foam block lies about 1/16 from hole opening When Main PCB is installed (next step), ensure the board engages foam similar to this view Position foam about 3/8 in below this edge The MAIN PCB goes in next.
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(4) #4 tapping screws (3000-4250) hold the XLR jacks to the back panel. Flush the jacks with the back panel, insert the screws, and tighten to 4 in-lbs. (4) Plastic jack nuts should be placed next. Flush the jacks with the back panel, insert the nuts, and tighten to 4-5 in-lbs. The PCB Screws must now be tightened the rest of the way. They should be tightened to a torque of 6 in-lbs.
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e) Inspect the Completed Sub-Assembly After completing the sub-assembly, inspect it to ensure that everything is correctly placed. Check that: • • • • • Check that the power amp assembly is mounted in the correct orientation. Check that the all PCB standoff holes have been secured (12 screws total). Check that the power switch is snapped flush into the chassis in the correct orientation. Check that all screws and nuts securing the output jack have been installed and are secure (4 screws, 8 plastic nuts).
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The User Interface (UI) PCBs Before the user interface PCBs can be attached to the chassis cover, it is first necessary to assemble the button arrays and LCDs.
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a) Place Standoffs and Displays The LCDs (50-00-0114) & (50-00-0115) must be attached to the left (larger) PCB. Both displays are attached with snap-in plastic standoffs. Place the standoffs through the predrilled holes in the UI board PCB until their locking fingers are fully engaged. After placing four standoffs for each display, snap the respective display into place on the standoffs. BOTH DISPLAY PCB ASSEMBLIES CONTAIN LEADS THAT WILL PASS THROUGH HOLES AND INTO HEADERS ON THE UNDERSIDE OF THE UI – PCB.
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Small Display Module. Add 1 Foam piece (approx 1”) #30-75-0010, Under small Display module #50-00-0115. UI-PCB headers LED assy (note orientation) Trim leads and cover with tape specified in the PCB assy instructions b) Pre-assemble Button Assemblies Solder LED PCB only when these surfaces are parallel and equal height The button assemblies must be partially pre-assembled. Each button assembly consists of a rubber keypad, a plastic isolation frame, and an array of keycaps affixed to a Mylar retainer.
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Amp Select Button assembly Channel Select Button Assembly These attach to UI – left board (see diagram on page 22) Edit Select Button Assembly This attaches to UI –right board Button Assembly Part No. Reference Chart Rubber Pad Isolation Frame Keycap Array Amp select 50-00-0007 30-27-0004 50-00-0039 Channel select 50-00-0008 30-27-0003 50-00-0042 Edit Select 50-00-0009 30-37-0001 50-00-0043 c) Place Button Assemblies Insert the button assemblies into the PCB as shown in the graphic below.
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Polyester Tape (#30-65-0002) strips should cover these exposed pins. Add 2 White Foam (#30-15-0044) squares Over Pins of LED display. 2 Strips of Polyester tape (#30-65-0002), can be added on top of the foam, or prior to foam application. Replace Large display Module. Add 2 Rubber Pads (#30-75-0010) As shown. d) Inspect the UI PCBs The UI PCBs should now be completed sub-assemblies. Check to make sure that: 1. All button assemblies are securely snapped in place and depress reliably.
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The Chassis Cover Assembly Refer to this graphic throughout the following section for aid in locating the parts discussed.
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XX 4 30-00-0025 SCREW,4-40 x 3/16”LG,PPH. ( Large bezel) XX 1 30-51-0096 SPRING CLIP (small bezel) XX 1 30-51-0102 PUSH NUT RETAINER (small bezel) a) Attach the Foam pads, Overlay and Shoulder Washers BEFORE BEGINNING ENSURE THAT THE CHASSIS COVER (30-51-0076) IS CLEAN AND CLEAR OF DEBRIS. First, attach the Foam vibration key pads to the PCBA side of the Chassis cover. Use the orientation blocks, as shown, to align these with the button cut-outs. Channel select Foam pad.
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a) cnd……Remove from the overlay (50-00-0108) the self-adhesive cover sheet and place into the alignment fixture, adhesive side up. Position the overlay as indicated on the fixture. Position the chassis cover over the alignment fixture, and orient so the alignment pins come through the chassis cover. Before applying the cover onto the overlay ensure that the piece is correctly oriented and not backwards. Bring the cover down onto the overlay, and apply pressure. Remove the protecting film from the overlay.
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There are (6) encoders knob treatments (30-27-0042) used on this product. They are to be placed in the holes indicated below. Insert them onto the front (or overlay side) of the chassis . 1 washer is being left off the assembly, as shown below. Each treatment has a set of locking fingers that snaps into place. Make sure that each treatment sits flush with the surface of the cover. Overlay side of the chassis DO NOT INSTALL this one. Due to the rotation stiffness.
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Screw, 4-40 X 3/16” lg, PPH. #30-00-0025. (4 PER) Torque to 4 in/lbs. Clip, Large Bezel. #30-51-0093 (2 PER) Insert clip through the small bezel boss, as shown. #30-51-0096 SPRING CLIP With Small bezel in place, snap the spring clip over the metal lip. Page 32 of 51 #30-51-0102 Push Nut Retainer. Press firmly over the small bezel shaft. Make sure bezel is fully seated.
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c) Position Keycaps Insert the key caps (50-00-0039, 50-00-0042, 50-00-0043) into their respective through holes (see figure below). Ensure that the text is oriented correctly (see figure). Position for Edit sel. Assy (50-00-0043) Position for channel sel. Assy (50-00-0042) Position Amp sel.
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CONNECT LEFT AND RIGHT BOARDS AS SHOWN Position of the surface mount connector and header on the UI panel Attach the guitar input jack assembly (50-00-0099)) to the chassis cover as shown below. Insert a spacer washer (30-15-0004) under the jack nut as shown in the figures below. Orient the PCB of the jack assembly to face the UI-PCB.
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e) Snap in Power Switch Snap in the Power Switch to the rectangular hole indicated below. For correct mounting ensure that the “O” symbol on the switch is oriented as indicated in the figure. f) Inspect the Completed UI Panel Sub-Assembly After completing the sub-assembly inspect it to ensure that everything is correctly placed. Check that: • All knobs are uniformly seated and appear straight. If a knob is visibly skewed, check for proper insertion and correct the problem immediately.
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Cable Assemblies a) Connect the Cable Assemblies Before securing the completed chassis cover assy to the completed chassis assy, all cables need to be connected. Use the table below to reference where the cables connect. The photos following the table in this section reference the cables listed below. Use the table and photos together to correctly complete this section. Due to the very repetitive nature of this section, it will be very short on text.
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Inset view for cables 1,2,3: Output PCB Assy Inset for cables 6 and 7: View for cables 8 and 9 Page 37 of 51 Vetta Head Assembly Instructions Rev D1
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-CABLE TIE POSITIONS. (6 places)- Secure the main switch cable (#6 above) to the chassis, using a ziptie as shown in the adjacent figure. The ziptie will secure to the chassis by passing it though a lance in the sheetmetal as shown . 1 2. ATTACH cable #21-34-0008, TO #2 down RIGHT CLAMP ONLY \ 3. ATTACH CABLE (21-34-0021) TO PEM STUD. 4.
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MIDDLE CLAMP ZIP TIE ( SAME AS No.2 ABOVE) 5. LOOP CABLE (21-340007), AND TIE CLOSE TO HEADER, AS SHOWN. 6. ZIP TIE CLOSE TO SPADE CONNECTORS, AT THE MAIN SWITCH. Note on Cable 8: Twist this cable before connecting as shown in the figure here.
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b) Set the voltage jumpers The correct voltage jumper configuration is as follows: Voltage: 100 – 120 220-240 Jumper On Off Fuse: 8 amp (#24-19-8250) 4 amp (#24-19-4250) Place voltage sticker on the chassis just below where the fuse and jumper are set. IF VOLTAGE IS SET TO 220-240V , IMMEDIATELY APPLY TO BACK SURFACE OF CHASSIS A SECOND VOLTAGE STICKER (#40-25-0011) INDICATING THIS JUMPER/FUSE CONFIGURATION.
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Completing the Electrical Chassis Refer to this graphic throughout this section for aid in locating the parts discussed.
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Attach chassis cover to base using 8 #6-32 captive star washer screws (30-00-0607). 4 are used at the top of the assembly ( MAKE SURE THAT THE 2 OUTER SCREWS GO THROUGH THE ENDS OF THE 2 BRACES) Other 4 are used on the front (see below) AGAIN, MAKE SURE THAT THE 2 OUTER SCREWS GO THROUGH THE ENDS OF THE 2 BRACES. Finish the subassembly by securing the power supply frame as described at the bottom of the page. Tighten to a torque of 6-8 in/lbs.
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6-32 screw (30-00-0607) ( 8 count for assembly) Chassis cover assy (reference only) Does not show Braces. Chassis base assy (reference only) Does not show Braces. Secure power supply frame to the chassis cover using 2 #10-32 pan head Phillips (30-00-1012) with #10 external tooth lockwasher (30-03-0001).
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Completing the Unit Refer to this graphic throughout the rest of this section for aid in locating the parts discussed. 11 Page 44 of 51 ITEM QTY LINE6 PART NO DESCRIPTION 1 1 ASSY, CHASSIS AND COVER 2 1 N/A (REF ONLY) 30-51-0152 3 1 30-51-0074 HANDLE BRACKET TOP 3 1 30-51-0075 HANDLE BRACKET BOTTOM CABINET, Vetta HD 4 1 30-60-0002 LOGO, OVAL HANDLE BRCKT 5 2 30-00-1032 SCREW, 10-32 X 1.
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a) Assemble the Handle Bracket Center the handle strap into the recesses of the top handle bracket – NOTE ORIENTATION OF THE GROOVES IN THE STRAP (see below). Hold the front handle bracket against the front of the cabinet as shown below. With the strap held in the recess, place the Top handle bracket onto the Front handle Bracket.. ASSURE ALLIGNMET BETWEEN EDGES OF TOP AND FRONT BRACKET –SEE BOLD NOTE BELOW. At this point fasten the 2 Top Bracket using #10-32 machine screws only.
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Now affix the Front Handle Bracket using the #6 wood screw (30-00-0019, see below left). Finish securing the Top Handle Bracket to the cabinet using 2 #10 oval HD wood screws (3000-0023) as shown below (right side). . b) Attach the Line 6 Logo Peel off the backing from the logo piece (30-60-0002) to reveal the pressure sensitive adhesive, center the logo in the bracket depression, and firmly press the logo into place. c) Insert the Chassis into the Cabinet.
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The chassis will sit directly against back of the cabinet front face when correctly installed. Secure the chassis using 4 #10 (30-00-1124) screws mounted with 4 #10 finish washers (30-03-0011). d) Place the Bezel Lenses The bezel lenses must be placed next. The LCD bezels each have a smoked lens that attaches with pressure sensitive adhesive. Gloves must be worn at this stage. Remove the adhesive protection film. Carefully center the lens, and firmly press it into place.
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e) Attach the Knobs The next step in assembling the cover sub-assembly is placing the knobs on the component stems. The knobs are standardized across multiple Line 6 products. The large encoder knob also has a spacing finger. DO NOT REMOVE the spacing finger from the encoder knob (30-27-0027). Check to ensure that the small encoder knob has been chosen correctly. It must NOT have a white indicator line that shows its orientation. (Line 6 stocks a very similar small potentiometer knob that has a line).
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P/N 40-25-2000 f) Set shipping configuration Configurations for shipping are: 1. 2. 3. Page 49 of 51 XLR: set to “ground” position. All POT’s: set to zero, EXCEPT for “Global” knobs - these should be set to 12:00 o’clock. Ohm select switch set to 8 ohm.
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Test and Inspect the Completed Unit To help ensure maximum quality of all products, it is the responsibility of the assembler to complete a post assembly inspection prior to sending the unit on to electrical testing and final inspection. This should help achieve one goal: no unit shall ever be returned from test and inspection for rework because of a mechanical defect that could have been corrected at the assembly stage.
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-PACK-OUT LIST-1. # 40-00-0000…CHART, PATCH , Vetta. (1 PER) 2. # 40-00-0001…MANUAL, USERS, Vetta. (1 PER) Rev.B & above only. 3. # 40-00-0073…ACCESSORY SHEET, DOMESTIC. (1 PER) US MODELS ONLY. 4. # 40-10-0001…FOAM CORNER, PE-LAM 1.5spf HD2. (8 PER) 5. # 40-10-0018…CARTON, SHIPPING, Vetta HEAD. (1 PER) 6. # 40-20-0010…PLASTIC BAG 43”x 38”. (1 PER) 7. # 40-20-0011…BAG, PLASTIC, 10”x 16”, 2 mil. (1 PER ) for lit pack. 8. # 40-25-0020…LABEL, QUALITY INSPECTION. (2 PER) 9.
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Engineering Vetta and FBX Service Hints If the PS_VALID line is inadvertently short-circuited, D15 on the power supply will almost certainly fail. This will keep the audio from appearing on the Direct Outputs, and possibly on the speaker outputs. If the main FETs (Q3 & Q15) on the power supply are shorted, a series of components will most likely fail. Replace R21, R7, R55, R49, R12, R11, R15, D4, Q3, Q15, Q11, Q2, and U2.
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If the DC bias voltage at the input pin 25, 24, 4, or 5 of the guitar input ADC U19 is significantly off from its nominal value of 2.5V (less than 1.8V or more than 3.2V), the part is probably bad. The same is true for Pin 22,23, 20 or 21 of the DAC U20 and U21, and for pin 17,16,20,19,23,24,26, or 25 of the CODEC U16. When troubleshooting the amp PCB by itself, you can power just the +/-15V rails and check almost the entire audio path.
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Vetta Self Test Procedure These tests should be used to confirm a customer complaint or as a final test at the completion of a repair. Failure of any of these tests may indicate a problem within that section’s underlying circuit and not just a failure of the surface component. In these cases, further troubleshooting in the failing circuit should be performed. 1. Hold down Reverb Button while powering the unit up.
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All 16 blocks on the small left LCD should fill. Press GATE once to advance to Test #5. 5. Graphic LCD Test #5 Press COMP button to start test. The large right LCD should fill and then clear. A vertical line will run from right to left on the right LCD. Then a horizontal line will run from bottom to top. Press GATE to advance to test #6 6.Encoder Test #6 Press the COMP button to start test Rotate all 7 black encoder knobs.
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10. & 11. Currently these are empty tests. Press GATE to advance past these tests. 12.InitDefaults? This is not an actual test routine but is used for resetting amp model and effects parameter defaults back to what was originally loaded in via flash. This is useful if a user has customized one or more of his or her amp models or effects and decides he or she wants to go back to the defaults loaded during the last flash update.
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Vetta Software Upgrade Procedure The Vetta’s software is upgraded via a Midi SysEx data dump to the Vetta’s Flash memory; there is no replaceable EPROM. To perform an upgrade to Vetta, you will need either a Midi data filer or a computer with Midi SysEx software as well as the new software code and a standard Midi cable (or joystick-to-midi cable). New code can also be imported from another Vetta.
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REVERB button. Proceed to TEST #13, “Upload Code”. Press COMP to begin sending the software). 5. After amp has received the new software, the right display will read “Software download complete. Press SAVE to run new software” 6. Press SAVE and the Vetta will go into play mode. 7. If program load is slow switching from channel to channel, you will need to reset the program memory. Press SAVE and scroll to page 10, "RESET FACTORY". Press SAVE while on this page to reset the Factory Bank.
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6033 De Soto Ave. Woodland Hills, CA 91367 P. 818-575-3600 F. 818-676-1585 E. service@line6.com Vetta’s presets (Factory and User) can be reset from the internal back up memory within the amp. To do this, hit the Save button and scroll to the appropriate reset page (Factory or User from back up memory). You can also install new Factory or User banks via Midi Data dump.