MZ-B100 SERVICE MANUAL Tourist Model Ver 1.0 2001.10 US and foreign patents licensed from Dolby Laboratories Licensing Corporation Model Name Using Similar Mechanism NEW Mechanism Type MT-MZB100-171 Optical Pick-up Name LCX-4R SPECIFICATIONS System Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 790 nm Emission duration: continuous Laser output: less than 44.
MZ-B100 General Power requirements DC 3V LR6 (size AA) alkaline dry battery (world model only) Battery operation time Battery life 1) When recording2)3) Recording mode Stereo LP2 Stereo LP4 Stereo MONO (Unit: approx.hours) (JEITA4)) Approx. hours 9 12.5 15 12 1) The battery life may be shorter due to operating conditions and the temperature of the location. 2) When using a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan). Recording time may differ according to the alkaline batteries.
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-B100 SECTION 2 GENERAL This section is extracted from instruction manual. LOCATION AND FUNCTION OF CONTROLS – Front of the recorder – How to attach the hand strap. 12 3456 78 9q;qaqsqdqfqg qh qj w; wa ws qk ql wd wf wgwh 1 SPEED CONTROL dial qf TRACK MARK button 2 .
MZ-B100 – The display window – 1 8 1 Character information display Displays the disc and track names, date, error messages, track numbers, recording level, etc.
MZ-B100 z The Set SECTION 3 DISASSEMBLY equipment can be removed using the following procedure. Panel (lower) ASSY Main board Cabinet (belt) section Key board unit Mechanism deck Optical pick-up block Holder ASSY Motor, DC (sled) (M602) Motor, DC (spindle) (M601) , Motor, DC (over write head up/down) (M603) Note : Follow the disassembly procedure in the numerical order given. 3-1.
MZ-B100 3-3. CABINET (BELT) SECTION Panel (upper lid) ASSY 1 Screws (ES lock) 1 Screws (ES lock) 3 Cabinet (belt) section 2 Open 3-4. KEY BOARD UNIT Panel (upper lid) ASSY 9 Claws MIC101 0 MIC201 7 Remove solder (2 places) Key board unit 6 Remove solder (4 places) 2 Cover (REC) 5 Screws 5 Screw 4 Speaker 8 Remove solder (2 places) 1 Screws 3 Screws (B2.
MZ-B100 3-5.
MZ-B100 3-6. OPTICAL PICK-UP BLOCK (LCX-4R) 2 gear (SA) 5 screw (M1.4) 1 washer (0.8-2.5) 6 spring, thrust detent 3 screw (M1.4) 8 Pull off “screw, lead” 4 spring, rack 7 9 Opening the over write head toward the direction A, remove the optical pick-up block (LCX-4R) toward the direction B. B Note: Do not open the entire assy forcibly, when opening the over write head.
MZ-B100 3-7. HOLDER ASSY 5 Remove the holder assy in the direction of arrow D. B 2 Push the convex portion toward the direction B and open the holder assy toward the direction A to erect uprightly. 1 Open the holder assy. A C 3 Remove the concave portion in the direction of arrow C. D 4 boss 3-8. MOTOR, DC (SLED) (M602) 2 washer (0.8-2.5) 3 gear (SA) 4 two screws (M1.4) 1 Remove six solders of motor flexible board.
MZ-B100 3-9. “MOTOR, DC (SPINDLE) (M601)”, “MOTOR, DC (OVER WRITE HEAD UP/DOWN) (M603)” 1 Remove six solders of motor flexible board. Note: Press-fit the gear (HA) up to the position of the “motor, DC (over write head up/down) (M603) as shown below. qa motor, DC (over write head up/down) (M603) 6 two screws (M1.4) gear (HA) 2.65 mm qs chassis assy, gear 4 three screws (M1.4) chassis assy, gear 9 screw (M1.
MZ-B100 SECTION 4 TEST MODE [Outline] • This set provides the Overall adjustment mode (Assy mode) that allows CD and MO disc to be automatically adjusted when in the test mode. In this overall adjustment mode, the protect switch is detected to judge the disc, CD or MO, and each adjustment is automatically executed in order. If a fault is found, the system displays its location. Also, the manual mode allows each individual adjustment to be automatically adjusted.
MZ-B100 [Configuration of Test Mode] [Test Mode $Display Check Mode%] Press the > or [EASY SEARCH +] key [Manual Mode] Press the x key Press the . [Servo Mode] [Audio Mode] [Power Mode] [OP Alignment Mode] or [EASY SEARCH --] key [Overall Adjustment Mode] Press the x key [EASY SEARCH +] key: 100th place of [Major item switching] N key x key mode number increase. [EASY SEARCH --] key: 100th place of mode number decrease. [EASY SEARCH +] key: 10th place of mode number increase.
MZ-B100 5. Set the mode No. to 011. The display changes a shown below each time the [DISPLAY] key is pressed. • Address & Adjusted Value Display LCD display [Overall Adjustment Mode] Mode to adjust the servo automatically in all items. Normally, automatic adjustment is executed in this mode at the repair. Adjust the CD first, when performing adjustment. • Configuration of overall adjustment > key C68S01 011 address adjusted value mode number Title display .
MZ-B100 [Sound Skip Check Result Display Mode] This set can display and check the error count occurring during record and play. • Setting method of Sound Skip Check Result Display Mode 1. Setting the test mode. (See page 12) 2. Press the N or [REC] key on the set activates the sound skip check result display mode where the LCD displays as shown below. 4.
MZ-B100 [Self-Diagnosis Display Mode] • This set uses the self-diagnosis system in which if an error occurs in recording/playback mode, the error is detected by the model control and power control blocks of the microprocessor and information on the cause is stored as history in EEPROM. By viewing this history in test mode, it helps you to analyze a fault and determine its location.
MZ-B100 • Description of Indication History History code number Description 1st0 The first error 1st1 Total recording time when 1st0 was generated (Higher rank byte) 1st2 Total recording time when 1st0 was generated (Lower rank byte) N0 The last error N1 Total recording time when N 0 was generated (Higher rank byte) N2 Total recording time when N 0 was generated (Lower rank byte) N-10 One error before the last.
MZ-B100 [Key Check Mode] This set can check if the set and remote commander function normally. • Setting Method of Key Check Mode 1. Setting the test mode. (See page 12) 2. Press the [T MARK] activates the key check mode where all segments of LCD turn OFF. (At the last two digits of DOT section, AD value of remote commander key line is displayed in hexadecimal) 3. When each key is pressed, it is displayed on the LCD, implying that it was successfully checked as shown below.
SECTION 5 ELECTRICAL ADJUSTMENTS MZ-B100 [Outline] [NV Reset] • In this set, automatic adjustment of CD and MO can be performed by entering the test mode. (See page 12) However, before starting automatic adjustment, the memory clear, power adjustment and temperature adjustment must be performed in the manual mode. • The keys in the description refer to the keys on both set and remote commander unless otherwise specified.
MZ-B100 • Adjustment method of VC PWM Duty (L) (mode number: 762) 1. Select the manual mode of the test mode, and set the mode number 762. (See page 13) digital voltmeter AP913 (VC) LCD display AP909 (GND) VclPWM 762 MAIN BOARD (SIDE A) C9 AP912 (VL) C926 C925 C924 15 D903 AP909 (GND) 14 digital voltmeter C915 C912 2. Connect a digital voltmeter to the AP913 (VC) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.
MZ-B100 • Adjustment method of VC PWM Duty (H) (mode number: 765) 1. Select the manual mode of the test mode, and set the mode number 765. (See page 13) digital voltmeter AP912 (VL) LCD display AP909 (GND) AP912 (VL) C926 C922 19 C925 C924 15 20 25 digital voltmeter D903 10 IC901 5 AP913 (VC) 45 AP909 (GND) C9 • Adjustment method of VREM PWM Duty (L) (mode number: 767) 1. Select the manual mode of the test mode, and set the mode number 767.
MZ-B100 • CD Automatic Adjustment item [Temperature Correction] • Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode number 014. (See page 13) LCD display Mode No. Description 312 313 CD electrical offset adjustment 314 SetTmp 014 328 CD TWPP gain adjustment 321 CD tracking error gain adjustment 323 2. Measure the ambient temperature. 3.
MZ-B100 • MO Automatic Adjustment item Mode No.
MZ-B100 SECTION 6 DIAGRAMS 6-1. EXPLANATION OF IC TERMINALS • MAIN BOARD IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. 24 Pin name I/O Description 1 TE O Tracking error signal output to IC801 2 REXT — Connected to the external resistor for the ADIP amplifier control 3 WPPLPF — Connected to the external capacitor for low-pass filter of the TPP/WPP 4 VREF11 O Reference voltage output terminal (+1.
MZ-B100 • IC801 CXD2671-209GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin name I/O Description 1 MICAMP CTL O MIC AMP ON/OFF control output 2 XHP DET I Headphones connection detect input 3 V UP O Volume control output 4 SP AMP O Speaker amplifier ON/OFF control output 5 XMONO MODE O MONO/STEREO control output 6 MCUVDD0 — Power supply terminal (for microcomputer block) (+1.
MZ-B100 Pin No. Pin name I/O 52 AVD2 — 53 AVS2 — 54 ADRB I 26 Description Power supply terminal (for the analog) (+2.4V) Ground terminal (for the analog) A/D converter the lower limit voltage input (fixed at “L” in this set) 55 SE I Sled error signal input terminal 56 TE I Tracking error signal input from RF amp (IC501) Not used (fixed at “L”) 57 DCHG — 58 APC I 59 DSPVDD0 — Power supply terminal (for DSP block) (+1.
MZ-B100 Pin No.
MZ-B100 Pin No. Pin name I/O Description 171 PLCTL O PL control signal output 172 SET CODE0 I Input terminal for the set (fixed at “L” in this set) 173 SET CODE1 I Input terminal for the set (open in this set) 174, 175 SET CODE2, 3 I Input terminal for the set (fixed at “L” in this set) 176 MIFVDD1 — Power supply terminal (for the microcomputer I/F block) (+2.
MZ-B100 Pin No. Pin name I/O 220 XRST MTR DRV O Reset control signal output to the motor driver (IC701) 221 XRF RST O Reset control signal output to RF amp (IC501) 222 MCUVDD3 — Power supply terminal (for the microcomputer block) (+1.
MZ-B100 6-2.
MZ-B100 6-3. BLOCK DIAGRAM – MAIN Section (2/3) – OPTICAL RECEIVER B+ SWITCH Q301 VIF B+ (Page 30) A DIN1 B+ INT MIC AMP B+ SWITCH Q315 B+ EXT MIC AMP B+ SWITCH Q313 VS+ J301 LINE IN (OPT) Q314 Q316 (LINE IN JACK) A/D CONVERTER IC301 9 G CDTI CCLK CSN GAIN AMP 1 SDO0, SDI0, SCK0 10 12 16 PDN +2.
MZ-B100 6-4.
MZ-B100 : Uses unleaded solder. Refer to page 29 for Notes.
MZ-B100 6-6. PRINTED WIRING BOARD – MAIN Section (2/2) – : Uses unleaded solder. Refer to page 29 for Notes. 3 2 1 z 4 5 6 8 7 9 10 11 S804 (OPEN/CLOSE) A MAIN BOARD (SIDE B) ECB Q320 3 C601 C B E Q314 D601 R602 L905 L904 L902 R315 D902 C917 C928 L901 C914 C907 C104 C203 C103 S801 HOLD .
MZ-B100 6-7. SCHEMATIC DIAGRAM – MAIN Section (1/4) – Refer to page 29 for Notes. z z Refer to page 29 for Waveforms. z Refer to page 39 - 41 for IC Block Diagrams. R254 47k R256 470k Q315 R232 100k C236 0.1 R335 10k VCC Q322 UN9114 B+ SWITCH C355 47 6.3V C354 10 6.3V GND R154 47k R156 470k Q319 2SA1586 R158 4.7k R334 470k R333 47k C134 0.1 C136 0.1 IC308 NJM2140R IC307 TC7W66FK SELECT SWITCH R337 3.3k Q318 2SC4116 C351 1 R157 10k (4/4) MIC AMP CTL R255 47k C135 10 6.
MZ-B100 Refer to page 39 - 41 for IC Block Diagrams. VD (4/4) VA (1/4,4/4) z (1/4,3/4,4/4) Refer to page 29 for Waveforms. VC VIF z XRST (4/4) Refer to page 29 for Notes. VG (3/4) VB(1/4,3/4,4/4) AVDD (4/4) CLK (3/4,3/4) z TRA (3/4) 1(1/4,3/4,4/4) 6-8. SCHEMATIC DIAGRAM – MAIN Section (2/4) – R916 R917 R918 150k 22k 4.7k R903 470 R911 0 R907 22k C906 10 6.3V C711 0.1 C703 0.033 R701 0 SLD CON W TRKTRK+ R703 0 C715 0.1 R913 3.3k C916 10 6.3V C914 10 6.
MZ-B100 6-9. SCHEMATIC DIAGRAM – MAIN Section (3/4) – z Refer to page 29 for Notes. Refer to page 29 for Waveforms. z z Refer to page 39 - 41 for IC Block Diagrams.
MZ-B100 6-10. SCHEMATIC DIAGRAM – MAIN Section (4/4) – z Refer to page 29 for Notes. Refer to page 29 for Waveforms. z z Refer to page 39 - 41 for IC Block Diagrams. RMC DTCK (1/4) R831 0 R853 0 CLV PWM IC802 TC7SH32FU-TE85R SSB CLK 3.3k SSB DATA VC PWN VL PWN 3.
MZ-B100 • IC Block Diagrams IC301 AK5354VT-E2 16 PDN LIN1 1 RIN1 2 LIN2 3 CONTROL REGISTER I/F IPGA HPF ADC RIN2 4 15 CSN 14 CCLK 13 CDTI CLOCK DIVIDER VCOM 5 AGND 6 VA 7 12 11 10 9 AUDIO I/F CONTROLLER VD 8 LRCK MCLK BCLK SDTO IC501 SN761057DBT 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 TWpp PK/BTM Aw CSLO VREF075 A-C D-C Malfa Mij AwBPF Dw DwBPF S-MONITOR TEMP D-C 7 Tpp/Wpp RF Iy 8 Ix 9 FE Jx 10 Jy 11 ABCD
MZ-B100 OUTB VRECIN2 VG HB PGND3 HA 39 38 37 36 35 34 33 VG2 VC2 VC EFM PRE DRIVER CONTROL 28 C1H 27 C1L CHARGE PUMP 1 26 VC2 VREF BUFFER VG3 DC IN 29 VC2 VG CHARGE PUMP 2 VC HI-BRIDGE PRE DRIVER CHARGE MONITOR X2/X4 BATM 44 VGC VG3 OUTPUT SW VC VG DC IN VB 43 32 31 30 VG3 VG OUTPUT SW VG2 PGND2 40 C2L PGND2 41 C2H OUTA 42 VG3 VRECIN1 IC601 XPC18A22FCR2 25 VREF 24 CVREF CONTROL 23 GND CHARGE CONTROL CHGSW 45 22 DW BT 21 DW TP DC IN 46 47 48 49 20 RF1 BAT
MZ-B100 VI1 1 WI1 2 PWM2 CPUO2 48 47 46 45 49 VC VC 44 VC 43 UI2 3Phase control ch2 BIAS OE 3Phase control ch1 OE VC 50 VG CPWO2 CPVO2 53 52 51 VC GND1 54 VG CPVO1 55 CPWO1 PWM1 56 CPUO1 UI1 IC701 SC111258FCR2 OE 42 VI2 41 WI2 40 PGNDW2 VC VG ROE VG VC PGNDW1 3 WO1 4 WMVW1 39 WO2 38 VMVW2 3Phase Pre driver ch2 5 VO1 6 PGNDUV1 7 UO1 8 37 VO2 3Phase Pre driver ch1 36 PGNDUV2 35 UO2 34 VMU2 VC VG VMU1 33 VMR2 GND 9 VG VC VMR1 10 32 RO2 H-BRIDGE PRE DRIVER
MZ-B100 SECTION 7 EXPLODED VIEWS NOTE : • -XX, -X mean standardized parts, so they may have some difference from the original one. • 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. • Hardware (# mark) list are given in the last of this parts list.
MZ-B100 7-2. PANEL (UPPER LID) SECTION 64 63 62 61 68 65 59 58 66 51 51 73 67 51 57 MIC101 MIC201 56 56 55 54 53 71 60 51 51 69 SP901 60 52 Ref. No. Part No. Description 51 52 53 54 55 4-984-017-01 3-034-792-01 3-235-185-01 3-235-184-01 1-476-937-11 SCREW (1.7), TAPPING SCREW, TAPPING (B2.
MZ-B100 7-3. CABINET (BELT) SECTION 116 108 109 118 109 107 112 111 106 110 116 113 114 105 112 not supplied 116 116 103 116 117 102 116 116 101 Ref. No. Part No.
MZ-B100 7-4. MECHANISM DECK SECTION (MT-MZB100-171) 151 167 169 171 168 152 155 153 156 A A 154 157 158 M603 160 165 159 172 164 not supplied 162 M602 161 153 173 M601 159 153 165 159 Ref. No. Part No. The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
MZ-B100 SECTION 8 ELECTRICAL PARTS LIST MAIN 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-B100 MAIN Ref. No. Part No. Description C242 C301 C302 C303 1-164-874-11 1-113-600-11 1-125-777-11 1-125-777-11 CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP 100PF 2.2uF 0.1uF 0.1uF 5% 20% 10% 10% 50V 6.3V 10V 10V Remark C304 C305 C306 C307 C310 1-125-839-11 1-117-919-11 1-125-777-11 1-125-777-11 1-125-777-11 TANTAL. CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 47uF 10uF 0.1uF 0.1uF 0.1uF 20% 20% 10% 10% 10% 6.3V 6.
MZ-B100 MAIN Ref. No. Part No. Description C813 C814 C815 C816 1-125-840-11 1-125-837-11 1-125-837-11 1-164-943-11 TANTALUM CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 10uF 1uF 1uF 0.01uF 20% 10% 10% 10% Remark 6.3V 6.3V 6.3V 16V C817 C818 C819 C821 C823 1-125-891-11 1-164-935-11 1-125-839-11 1-125-837-11 1-125-777-11 CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP 0.47uF 470PF 47uF 1uF 0.1uF 10% 10% 20% 10% 10% 10V 50V 6.3V 6.
MZ-B100 MAIN Ref. No. Part No.
MZ-B100 MAIN Ref. No. Part No.
MZ-B100 MAIN Ref. No. Part No.
MZ-B100 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. 52 Ver. Date 1.0 2001.
