MZ-E505 SERVICE MANUAL E Model Ver 1.0 2002. 02 US and foreign patents licensed from Dolby Laboratories. Model Name Using Similar Mechanism NEW Mechanism Type MT-MZE505-176 Optical Pick-up Name LCX-4E SPECIFICATIONS Audio playingsystem MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 790 nm Emission duration: continuous Laser output: less than 44.
MZ-E505 Battery life TABLE OF CONTENTS 1) (Unit: Approx.hours) (JEITA 2)) Batteries SP Stereo LP2 LP4 (normal) Stereo Stereo 1. SERVICING NOTES ............................................... 3 Ni-MH rechargeable battery NH-14WM(A) 3) 33 37 43 2. GENERAL ...................................................................
MZ-E505 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.
MZ-E505 SECTION 2 GENERAL This section is extracted from instruction manual. Parts and controls The earphones with a remote control The Player 5 1 2 6 7 8 3 1 2 3 4 8 9 9 4 q; 5 6 q; + – qa qs 7 ./ N>* button VOL +*/– button i (earphones) jack OPEN switch Battery compartment GROUP button x button HOLD (Locking the control) switch Terminals for charging stand/ dry battery case (at the bottom) q; 3 Color Info-LED 1 2 3 4 5 6 7 8 9 * The N> and VOL + buttons have tactile dots.
MZ-E505 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW SET 3-2. BATTERY CASE LID (Page 6) 3-3. CASE (REAR) (Page 6) 3-4. MAIN BOARD (Page 7) 3-5. UPPER PANEL SECTION (Page 7) 3-6. SWITCH BOARD (Page 8) 3-7. HOLDER ASSY (Z) (Page 8) 3-8. MECHANISM DECK (MT-MZE505-176) (Page 9) 3-9. BRACKET (L) ASSY (Page 10) 3-10. BRACKET (R) ASSY (Page 10) 3-11. OPTICAL PICK-UP (LCX-4E) (Page 11) 3-12. DC SSM18B MOTOR (SPINDLE) (M901) (Page 11) 3-13.
MZ-E505 Note: Follow the disassembly procedure in the numerical order given. 3-2. BATTERY CASE LID 2 claw 1 Open the battery case lid. 3 battery case lid 3-3. CASE (REAR) 1 Close the battery terminal board assy. 2 screw (1.7) 3 two screws (M1.4) 3 two screws (M1.4) 4 Remove the case (rear) in the direction of the arrow.
MZ-E505 3-4. MAIN BOARD 1 Remove solder of the battery terminal board assy. 4 boss 3 flexible board (switch board) (CN801) 5 2 five screws (M1.4 × 2) 8 main board 3-5. 6 flexible board (optical pick-up) (CN501) 7 flexible board (motor) (CN551) UPPER PANEL SECTION 4 upper panel section 3 two screws (M1.4) 1 flexible board (switch board) (CN801) 3 two screws (M1.4) 2 Open the upper section.
MZ-E505 3-6. SWITCH BOARD 2 convex portion 2 convex portion 3 switch board 1 four screws (1.7 × 2.5) 3-7.
MZ-E505 3-8. MECHANISM DECK (MT-MZE505-176) 1 step screw (L) 5 Lift up the mechanism deck in the direction of the arrow. 3 claw 4 convex portion 2 nut (M1.
MZ-E505 3-9. BRACKET (L) ASSY 3 bracket (L) assy 2 convex portion 2 convex portion 1 two claws 3-10. BRACKET (R) ASSY 3 bracket (R) assy Note: On installation, adjust the position of knob (open) and open slider.
MZ-E505 3-11. OPTICAL PICK-UP (LCX-4E) 1 washer 3 screw (M1.4) 2 gear (SA) 4 thrust detent spring 5 optical pick-up (LCX-4E) 3-12. DC SSM18B MOTOR (SPINDLE) (M901) 2 Remove the flexible board. 1 Remove the four solders.
MZ-E505 3-13. DC MOTOR (SLED) (M902) 4 two screws (M1.4) 5 DC motor (sled) (M902) 1 Remove the four solders. 2 washer (0.8-2.
MZ-E505 SECTION 4 TEST MODE 4-1. GENERAL Remote control LCD • When entered in the TEST MODE, this set provides the Overall Adjustment mode which allows CD and MO discs to be automatically adjusted. In the Overall Adjustment mode, the system discriminates between CD and MO discs, performs adjustments in sequence automatically, and displays the faulty location if any fault is found. In the Manual mode, selected adjustments can be performed automatically.
MZ-E505 4-3. TEST MODE STRUCTURE 3. Each test item is assigned with a three-digit item number. The 100th place is a major item, 10th place is a middle item, and unit place is a minor item.
MZ-E505 5. To terminate the Manual mode and return to the TEST MODE, press x key. 4-5. OVERALL ADJUSTMENT MODE 4-5-1. Outline of the function This mode is designed to adjust the servo system automatically by going through all the adjustment items. Usually, this mode is used to perform automatic adjustments when servicing the set. For further information, refer to section 5. ELECTRICAL ADJUSTMENTS. (See page 18) 4-6. SELF-DIAGNOSTIC DISPLAY MODE 4-6-1.
MZ-E505 • Description of the error display codes Contents of fault No error Servo system error TOC error Power system error Offset error Display code Meaning of code Simplified contents 00 01 02 03 04 11 12 22 31 32 33 34 No error Access target address illegally specified HIGH TEMP FOCUS ERROR SPINDLE ERROR TOC ERROR READ DATA ERROR LOWBATT OFFSET ERROR FE_ABCD_OFFSET_ERR TE_ABCD_OFFSET_ERR X1_TE_OFFSET_ERR –––– Adrs Temp Fcus Spdl TOC Data LBat Ofst ABCD TE X1TE 4-6-3.
MZ-E505 4-7. SOUND SKIP CHECK RESULT DISPLAY MODE 4-8. KEY CHECK MODE This set can display and check the error count occurring during play. • Setting method of Sound Skip Check Result Display Mode 1. Setting the test mode. 2. Turn the control towards > N activates the sound skip check result display mode where the LCD displays as shown below. LCD display 4-8-1. Outline of the function This mode is used to check to make sure that each of the keys (including the slide switch) on the set operates normally.
MZ-E505 SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. GENERAL 5-4. MANUAL POWER ADJUSTMENTS In this set, CD and MO discs can be automatically adjusted by setting the Overall Adjustment mode within the TEST MODE, Before performing these automatic adjustments, it is necessary to clear the memory and adjust the power in the Manual mode. 5-4-1. Adjustment sequence The adjustments should be always performed in the following sequence: 5-2. NOTES FOR ADJUSTMENT 5-2-1.
MZ-E505 5-4-3. VI PWM Duty adjustment 5-5. OVERALL ADJUSTMENT MODE 5-5-1. Overall adjustment mode structure Connection: digital voltmeter MAIN board TP904 (VL) TP921 (GND) Procedure: TEST MODE (Display Check Mode) VOL Overall Adjustment Title Display(ASSY**) . 5-4-4. Vb A/D value check 1. Set the Manual mode and set the item No. to 731. LCD display 731 Vb_AD XX 2. Confirm the A/D value is 73 to 87 hex. 3. Confirm the power supply consumiption current is 120 mA or less. 5-4-5.
MZ-E505 6. If NG in the overall MO adjustments, return to Reset NV and perform the adjustment again. 5-5-5. Overall CD and MO adjustment items 1. Overall offset adjustment Item No. LCD display 000 XXX NG Contents 030 GRV setting • Sarvo OFF • Head UP 035 Laser ON/OFF electrical offset difference measurement XXX: NG item No. Completed 7. If OK through the overall MO adjustments, press x key to return to the TEST MODE and terminate the Overall Adjustment mode. 2.
MZ-E505 Item No.
MZ-E505 5. Judge LED voltage value is OK or NG by using the voltage value confirmed at step 3 and 4. IN case of jadgment result is NG, adjust the LED voltage (See page 23). flow chart of judging LED voltage is OK or NG: Vred: High luminosity RED voltage value (item No. 071) Vgrn: High luminosity GREEN voltage value (item No. 075) Strat 0.500mV Vred 1.100mV? NG Vred Vred 1.101mV 0.419mV 0.420mV Vred 0.499mV Vgrn 2.299mV OK Vred-Vgrn (adsolute value) 2.000mV? OK 2.300mV Vgrn 4.
MZ-E505 5-6-2. LED voltage adjustment Note: This adjustment performed only when the judgment result of judging LED voltage value is OK or NG is NG (See page 22). Connecting Location: – MAIN BOARD (Component Side) – IC301 Connection: digital voltmeter MAIN board TP902 (VCOUT) 071 Red35H XX XXX: A/D value. 2. Connect a digital voltmeter to TP902 (VCOUT) and TP815 (LEDADJ) on the MAIN board and adjust with VOL + (Voltage up) and VOL – (Voltage down) so that the voltage becomes standard value.
MZ-E505 SECTION 6 DIAGRAMS BLOCK DIAGRAM Iy RF AMP,FOCUS/TRACKING ERROR AMP IC501 HEADPHONE AMP IC301 Ix 4 VREF Jx B C A-C 13 D-C 7 Jy JX JY JX A IX IY IX A BC D Iy 8 9 10 11 12 14 5 6 18 D Ix Jx Jy A B C D PD-NI RF OUT RF AMP, FOCUS ERROR, TRACKING ERROR PEAK /BOTM 37 RFI 33 PEAK 29 BOTM 28 ABCD FE 47 FE OUT B BEEP LD-A LD S0 S1 LASER AUTO POWER CONTROL Q501 20 PD-O S-MONITOR XHP STBY 240 MUTE 218 78 APCREF 49 VC 12 VREF MON XRST 25 SBUS 23 SCK 24 221 XRF RST 160 SSB DATA 1
MZ-E505 • Waveforms 6-2. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: • X : parts extracted from the component side. • Y : parts extracted from the conductor side. • : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Parts on the pattern face side seen from the pattern face are indicated.
MZ-E505 7 8 9 10 R525 IC501 C101 1 C508 C106 C509 R515 C526 C601 D903 K 14 F K C995 31 30 51 113 24 42 181 166 136 142 25 20 26 165 168 138 139 28 16 40 23 17 38 21 15 34 27 8 22 ∗ IC601 R603 C605 207 206 205 19 4 9 232 158 156 29 2 7 144 160 169 150 167 171 6 1 3 48 10 5 178 175 231 241 12 11 52 238 240 234 32 177 162 226 220 188 217 223 186 192 198 214 219 222 218 R804 230 33 236 237 239 242 155 204 203 201 209 211 210 208 225 202 200 213 190 227 229 233 46 43 235 41 39
MZ-E505 6-4. PRINTED WIRING BOARD – MAIN board (Conductor Side) – 1 2 3 4 5 6 7 8 9 10 • Semiconductor Location Ref. No.
MZ-E505 SCHEMATIC DIAGRAM – MAIN Board (1/3) – • See page 25 for Waveform. • See page 31 for IC Block Diagrams. (1/3) C620 0.1 XCS NV PD_S0 TAP601 (TEST) PD_S1 MUTE XCS NV XRF RST XHOLD SW VLON XRST MTR DRV TRK- SLEEP FOCUS/TRACKING ERROR AMP R503 C501 1k 100p TRK- CLV CON U RF AMP, CN501 20P SLD CON U R525 0 C508 1500p FFCLR XHP STB TE R827 1M XCS SK C808 0.1 XBUSY BB2 DI RST DO GND BB3 IC501 SN761057ADBT TRK+ VCC BB1 TRK+ R501 33k FCS+ TE REXT FCS+ C502 0.
MZ-E505 6-6. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 25 for Waveform. • See page 31 for IC Block Diagrams. A12 A11 A10 A9 A8 A6 A7 A4 A5 A3 A2 A1 (Page 28) (2/3) TRK+ TRK- CC7 CC6 CC5 C1 BOARD CN551 8P CC1 8 CLVN CC2 V W C922 22 6.3V R948 150k CLVU CC3 C901 47 6.
MZ-E505 SCHEMATIC DIAGRAM – MAIN Board (3/3) – • See page 25 for Waveform. • See page 31 for IC Block Diagrams. (Page 28) B1 B2 B3 B5 B6 B4 6-7. (3/3) TP815 (LED ADJ) R811 1 CN801 6P LEDVDD C1 LED R PWM LED R PWM LED G PWM LED G PWM SET KEY SET KEY1 XWK1 WK DET C803 470p GND S808 HOLD OFF ON XHOLD SW S809 (OPEN/CLOSE DETECT) OPEN C804 0.01 TAP801 R205 100k C201 1 R922 150k R301 33 C104 6800p C204 6800p C101 1 RB301 33k X4 R105 100k C301 10 6.3V C303 1 C2 C302 0.
MZ-E505 • IC Block Diagrams BEEP IN GND VREF IN BST SW TA2131FL (EL) 18 17 16 15 14 13 PW SW MT SW BST SW BEEP MT SW PW SW IC301 12 VREF V REF 11 LPF1 MT TC 19 VCC1 20 ADD INB 21 10 BST NF1 BST1 INA 22 9 LPF2 PW A BEEP 23 OUTB PW B BST2 8 BST NF2 7 BST OUT BEEP 24 OUTA 1 2 3 4 5 6 VCC2 OUTA PWR GND OUTB DET AGC IN BST AGC IC501 SN761057ADBT 44 ADIP-IN 43 S-MON A+B+C+D I+J NPP TON CSL Aw+Dw TON Peak TON Botm ADIP TE TE 1 REXT 2 Wpp LPF 3 VREF 4 C 5 D 6 TE TWp
MZ-E505 PGNDW2 WO2 VMVW2 VO2 PGNDUV2 UO2 VMU2 VMR2 RO2 PGND2 FO2 VMF2 SC111258FCR2 VI2 WI2 IC551 42 41 40 39 38 37 36 35 34 33 32 31 30 29 UI2 43 PWM2 44 3PHASE CONTROL CH2 VC VC VG 3PHASE PRE DRIVER CH2 VC LOW VOLTAGE DETECTOR VC VG H-BRIDGE PRE DRIVER CH2 VC VG CPUO2 45 CPVO2 46 CPWO2 47 VC BIAS H-BRIDGE CONTROL CH2 VC VG 26 COM2 – U+ 25 CPUI2 – V+ 24 CPVI2 – W+ 23 CPWI2 – W+ 20 CPWI1 – + 19 CPVI1 – U+ 18 CPUI1 22 NC 21 GND2 OE 48 GND1 49 VC 50 VG 51 VC VG CPWO1 5
MZ-E505 VAFB VDFB VIFFB GND VC VC VC OUT L1 NC PGND1 PGND1 42 41 40 39 38 37 36 35 34 33 32 31 30 29 NC 43 VCO VA XPC18A32FCR2 VIF IC901 OUTPUT SW VD 44 VC2 45 OUTPUT SW SERIES PASS REGULATOR VA SERIES PASS REGULATOR VD SERIES PASS REGULATOR VIF 28 L1 OUTPUT SW VC VG + – POWER SWITCH 1 VC VC 26 INM1 VC STEP-UP PRE DRIVER XRST 46 27 RF1 PWM 25 DTC1 OUTPUT SW VC CRST 47 24 DTC2 RSTREF 48 + – BANDGAP REFERENCE 23 RF2 22 INM2 VREF 49 VC VB PWM VB 50 GND 51 21 VDRF
MZ-E505 6-8. IC PIN FUNCTION DESCRIPTION • IC501 SN761057ADBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No.
MZ-E505 • IC801 CXD2671-210GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin Name I/O 1 Description SCS1 — 2 SI1 — Not used 3 SO1 — Not used 4 SCK1 — Not used 5 78 DD CTL — Not used 6 MCUVDD0 — Power supply terminal (for microcomputer block) (+1.
MZ-E505 Pin No. Pin Name I/O 45 BOTM I Bottom hold signal input of the light amount signal (RF/ABCD) from RF amp 46 ABCD I Light amount signal (ABCD) input from RF amp 47 FE I Focus error signal input from RF amp 48 AUX1 I Support signal (I3 signal/temperature signal) input terminal (A/D input) 49 VC I Middle point voltage (+1.
MZ-E505 Pin No. Pin Name I/O Description 90 SPDW O Spindle motor drive control signal output (W) to the motor driver 91 DSPVDD2 — Power supply terminal (for DSP block) (+1.
MZ-E505 Pin No.
MZ-E505 Pin No.
MZ-E505 SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they may have some difference from the original one. • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) ↑ ↑ Parts Color Cabinet's Color • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not supplied.
MZ-E505 7-2. ORNAMENTAL BELT SECTION 64 58 57 56 MT-MZE505-176 59 60 55 61 62 53 63 54 52 51 51 Ref. No. Part No. Description 51 * 52 53 54 55 3-335-797-01 A-3021-679-A 3-235-193-01 3-235-223-01 3-235-192-32 SCREW (M1.4X2), TOOTHED LOCK MAIN BOARD, COMPLETE KNOB (OPEN) TERMINAL BOARD (MINUS) BELT, ORNAMENTAL (SILVER) 55 55 55 56 3-235-192-42 3-235-192-52 3-235-192-62 X-3381-107-2 BELT, ORNAMENTAL (BLUE) BELT, ORNAMENTAL (PINK) BELT, ORNAMENTAL (VIOLET) BRACKET (L) ASSY Remark Ref. No.
MZ-E505 7-3. MECHANISM DECK SECTION (MT-MZE505-176) 314 313 M902 312 311 not supplied 310 315 M901 308 306 307 305 304 309 303 302 301 Ref. No. Part No. Description 301 302 0 303 304 305 3-222-392-01 3-222-391-01 X-3379-869-1 4-222-203-02 3-043-237-02 SCREW (M1.4), TAPPING SPRING (M), RACK OPTICAL PICK-UP (LCX-4E) SCREW, LEAD BEARING (N) 306 307 308 309 310 4-222-208-01 3-225-996-01 3-224-779-02 3-225-278-11 4-997-677-11 GEAR (SB) SCREW (M1.
MZ-E505 SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may have some difference from the original one. • RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F: nonflammable Ref. No. Part No.
MZ-E505 MAIN Ref. No. Part No. Description Remark C922 1-119-750-11 TANTALUM CHIP 22uF 20% 6.3V C952 C994 C995 C996 C997 1-128-964-11 1-164-931-11 1-107-820-11 1-164-931-11 1-107-820-11 100uF 100PF 0.1uF 100PF 0.1uF 20% 10% 6.3V 50V 16V 50V 16V C999 1-125-777-11 CERAMIC CHIP 0.
MZ-E505 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description SWITCH Remark < COMPOSITION CIRCUIT BLOCK > RB301 RB553 RB554 1-233-970-21 RES, NETWORK (CHIP TYPE) 33K 1-233-967-11 RES, NETWORK (CHIP TYPE) 10K 1-233-964-21 RES, NETWORK (CHIP TYPE) 3.3K < SWITCH > S808 S809 1-762-078-11 SWITCH, SLIDE (HOLD) 1-786-101-12 SWITCH, DETECTION (OPEN/CLOSE DETECT) < VIBRATOR > X601 1-795-002-21 VIBRATOR, CERAMIC (45.
MZ-E505 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. 1.0 Date 2002.