Sony MZ-B100 manual

POR T ABLE MINIDISC RECORDER MZ-B100 SERVICE MANUAL T our ist Model V er 1.0 2001.10 9-873-341-01 2001J0200-1 © 2001.10 Sony Corporation Per sonal Audio Compan y Published by Son y Engineering Corporation SPECIFICA TIONS Model Name Using Similar Mechanism NEW Mechanism T ype MT -MZB100-171 Optical Pick-up Name LCX-4R US and foreign patents license[...]

2 MZ-B100 SAFETY-RELA TED COMPONENT W ARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DO TTED LINE WITH MARK 0 ON THE SCHEMA TIC DIA GRAMS AND IN THE P ARTS LIST ARE CRITICAL T O SAFE OPERA TION. REPLA CE THESE COMPONENTS WITH SONY P ARTS WHOSE P ART NUMBERS APPEAR AS SHO WN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY . Flexible Cir cuit Board [...]

3 MZ-B100 NO TES 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 procedu[...]

4 MZ-B100 SECTION 2 GENERAL LOCA TION AND FUNCTION OF CONTROLS – Front of the recor der – – Bac k of the recorder – This section is extracted from instruction manual. 1 SPEED CONTROL dial 2 . REVIEW/AMS/ > CUE/AMS (search /AMS) buttons 3 VOR indicator 4 DISPLA Y button 5 PLA Y MODE button 6 EDIT/ENTER button 7 EASY SEARCH +/– buttons 8[...]

5 MZ-B100 1 Character information display Displays the disc and track names, date, error messages, track numbers, recording level, etc. 2 Group indication 3 Play mode indication 4 Disc indication Shows that the disc is rotating for recording, playing or editing an MD. 5 VOR indication 1 Stereo mini plug 2 SOUND button 3 TRACK MARK button 4 HOLD swi[...]

6 MZ-B100 SECTION 3 DISASSEMBL Y Note : Follow the disassembly procedure in the numerical order given. 3-1. P ANEL (LOWER) ASSY 3-2. MAIN BO ARD z The equipment can be removed using the following procedure. Panel (lower) ASSY Optical pick-up block Holder ASSY Motor, DC (sled) (M602) Motor, DC (spindle) (M601) , Motor, DC (over write head up/down) ([...]

7 MZ-B100 3-3. CABINET (BEL T) SECTION 3-4. KEY BO ARD UNIT 1 Screws (ES lock ) 2 Open 1 Screws (ES lock) Panel (upper lid) ASSY 3 Cabinet (belt) section 6 Remove solder (4 places) 8 Remove solder (2 places) 7 Remove solde r (2 places) 9 Claws 5 Screws 3 Screws (B2.0) 5 Screw 1 Screws 2 Cover (REC) 4 Speaker Panel (upper lid) ASSY MIC101 MIC201 Key[...]

8 MZ-B100 3-5. MECHANISM DECK 4 Screws (ES lock) 3 Screws (ES lock) 5 Screw (ES lock) 1 Screws (ES lock) Mechanism deck (MT-MZB100-171) 9 8 Screws (ES lock) 2 6 7 Screws (ES lock) Cabinet (front) Set chassis ASSY Cabinet (belt)[...]

9 MZ-B100 3-6. OPTICAL PICK-UP BLOCK (LCX-4R) 4 spring, rack 3 screw (M1.4) 1 washer (0.8-2.5) 2 gear (SA) 5 screw (M1.4) 6 spring, thrust detent 8 Pull off “screw, lead” 7 over write head section Optical pick-up block (LCX-4R) 9 Opening the over write head toward the direction A , remove the optical pick-up block (LCX-4R) toward the direction [...]

10 MZ-B100 2 Push the convex portion toward the direction B and open the holder assy toward the direction A to erect uprightly. 3 Remove the concave portion in the direction of arrow C . 5 Remove the holder assy in the direction of arrow D . D C B A 1 Open the holder assy. 4 boss 5 motor, DC (sled) (M602) 4 two screws (M1.4) 1 Remove six solders of[...]

11 MZ-B100 5 motor, DC (spindle) (M601) 4 three screws (M1.4) 1 Remove six solders of motor flexible board. qa motor, DC (over write head up/down) (M603) 6 two screws (M1.4) qs chassis assy, gear 9 screw (M1.2) 0 gear (HA) gear (HA) chassis assy, gear 2.65 mm motor, DC (over write head up/down) (M603) 8 gear (HB) 7 washer (0.8-2.5) 2 washer (0.8-2.[...]

12 MZ-B100 2 In the normal mode, turn on the HOLD switch on the set. While pressing the N key on the set, press the following set keys in the following order: > t > t . t . t > t . t > t . t X t X [Operation in Setting the T est Mode] • When the test mode becomes active, first the display check mode is selected. (Press x key once, whe[...]

13 MZ-B100 [Configuration of T est Mode] [Manual Mode] Mode to adjust or check the operation of the set by function. Normally , the adjustment in this mode is not executed. • T ransition method in Manual Mode 1. Setting the test mode. (See page 12) 2. Press the > or [EASY SEARCH +] key activates the manual mode where the LCD display as shown b[...]

14 MZ-B100 5. Set the mode No. to 01 1. The display changes a shown below each time the [DISPLAY] key is pressed. However in the power mode (mode number 700 ’ s), only the power adjustment value is displayed. 6. Quit the manual mode, and press x key to return to the test mode (display check mode). [Overall Adjustment Mode] Mode to adjust the serv[...]

15 MZ-B100 [Sound Skip Check Result Displa y Mode] This set can display and check the error count occurring during record and play . • Setting method of Sound Skip Check Result Displa y 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 s[...]

16 MZ-B100 [Self-Diagnosis Displa y Mode] • This set uses the self-diagnosis system in which if an error oc- curs 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 a[...]

17 MZ-B100 • Description of Indication History History code number Description 1st0 The first error 1st1 T otal recording time when 1st0 was generated (Higher rank byte) 1st2 T otal recording time when 1st0 was generated (Lower rank byte) N 0 The last error N 1 T otal recording time when N 0 was generated (Higher rank byte) N 2 T otal recording t[...]

18 MZ-B100 [Ke y Check Mode] This set can check if the set and remote commander function nor- mally . • 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 di[...]

19 MZ-B100 SECTION 5 ELECTRICAL ADJUSTMENTS [Outline] • In this set, automatic adjustment of CD and MO can be per- formed 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 refe[...]

20 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) 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 2.5 ± 0.02 [...]

21 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) 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 2.75 ± 0.02[...]

22 MZ-B100 [T emperature Correction] • Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode num- ber 014. (See page 13) 2. Measure the ambient temperature. 3. Adjust with [EASY SEARCH +] , [EASY SEARCH - -] key so that the adjusted value (hexadecimal value) becomes the am- bient temperature. (Initia[...]

23 MZ-B100 14. When both CD and MO overall adjustments are OK, set the mode No. 043 (Resume) and clear the clock data. r Press the X key , historical data clear Note: In step 10, set the clock data to 99Y11M11D11H11M00S, and in step 14, do not set the clock. 10. If the result of automatic adjustment is OK, the following dis- play appears in the LCD[...]

24 MZ-B100 Pin No. Pin name I/O Description 1 TE O T racking 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 VREF1 1 O Reference voltage output terminal (+1.1V) 5 C I Signal input from the optical pick-up d[...]

25 MZ-B100 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 V olume 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) (+1.5V) 7 MIFVSS3 — Groun[...]

26 MZ-B100 Pin No. Pin name I/O Description 52 A VD2 — Power supply terminal (for the analog) (+2.4V) 53 A VS2 — Ground terminal (for the analog) 54 ADRB I A/D converter the lower limit voltage input (fixed at “L” in this set) 55 SE I Sled error signal input terminal Not used (fixed at “L”) 56 TE I Tracking error signal input from RF am[...]

27 MZ-B100 Pin No. Pin name I/O Description 101 SLCV I Sled motor drive comparison signal input (V) from the motor driver (IC701) 102 SLCW I Sled motor drive comparison signal input (W) from the motor driver (IC701) 103 DIFVDD1 — Power supply terminal (for DSP I/F) (+2.3V) 104 DIFVSS1 — Ground terminal (for DSP I/F) 105 EFMO O EFM encode data o[...]

28 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 micr[...]

29 29 MZ-B100 • Main board is f our-la yer printed board. How ever , the patterns of lay ers 2 and 3 hav e not been included in this diagrams . • Replacement of IC801 used in this set requires a special tool. • Lead La youts surface Lead la yout of conv entional IC CSP (chip size package) Note on Printed Wiring Board: • X : par ts extracted[...]

30 30 MZ-B100 6-2. BLOCK DIA GRAM – MAIN Section (1/3) – 33 29 28 41 42 1 44 21 31 26 25 43 24 23 4 8 9 10 11 12 14 5 6 13 7 18 19 JX JY JX IX IY IY IX JX JY A B C D MON IX A B CD OPTICAL PICK-UP BLOCK (LCX-4R) OVER WRITE HEAD S0 S1 D D-C PD-NI PD-O C B A VREF A-C JY JX IX IY RF AMP, FOCUS ERROR, TRACKING ERROR TPP/WPP APC S-MONITER RF OUT PEAK[...]

31 31 MZ-B100 6-3. BLOCK DIA GRAM – MAIN Section (2/3) – VC B+ F301 F RMC KEY RVCC DTCK KEY -R RGND (LINE IN JACK) OPTICAL RECEIVER J301 LINE IN (OPT) J303 MIC (PLUG IN POWER) • R-CH is omitted • SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN) 2 24 4 23 22 12 13 21 2 3 1 5 7 15 5 4 17 16 183 218 240 143 142 144 145 192 215 191 1[...]

32 32 MZ-B100 6-4. BLOCK DIA GRAM – MAIN Section (3/3) – 7 4 56 52 54 55 1 2 3 5 20 86 169 236 235 234 17 18 19 6 10 49 24 25 39 44 38 42 40 41 35 22 23 26 46 47 50 28 32 34 11 14 10 15 22 16 19 20 51 54 55 21 8 9 26 49 47 46 45 43 44 56 50 48 33 36 45 18 19 16 12 11 9 27 53 + – 164 165 8 16 214 10 216 188 208 13 14 170 205 206 187 182 230 20[...]

33 33 MZ-B100 6-5. PRINTED WIRING BO ARD – MAIN Section (1/2) – z Refer to page 29 for Notes. D603 B-4 D604 H-5 D605 G-6 D901 D-4 D903 C-5 IC302 B-10 IC305 B-6 IC306 B-5 IC307 F-10 IC308 F-10 IC309 G-10 IC310 G-10 IC311 B-8 IC501 E-6 IC601 G-5 IC701 D-7 IC801 G-8 IC804 E-9 IC901 C-4 Q101 B-7 Q201 B-7 Q301 B-4 Q308 B-9 Q309 E-10 Q310 E-10 Q315 H[...]

34 34 MZ-B100 6-6. PRINTED WIRING BO ARD – MAIN Section (2/2) – z Ref er to page 29 for Notes. D101 B-2 D201 B-2 D301 B-5 D304 C-2 D601 B-8 D602 B-9 D606 E-7 D607 F-7 D801 F-4 D902 C-8 D904 C-8 IC301 B-3 IC303 F-2 IC304 E-2 IC312 B-4 IC313 B-5 IC802 F-4 Q302 F-2 Q303 F-3 Q304 E-3 Q305 E-3 Q306 F-2 Q307 E-2 Q311 D-2 Q312 D-2 Q313 B-7 Q314 B-7 Q3[...]

35 35 MZ-B100 6-7. SCHEMA TIC DIA GRAM – MAIN Section (1/4) – z Refer to page 29 for Notes. z Refer to page 29 f or W avef orms. z Refer to pa g e 39 - 41 for IC Bloc k Diagrams. IC305 IC307 IC309 IC308 IC310 IC311 J302 R132 R133 C121 C123 R135 R136 R137 R138 R161 C124 R103 C142 R139 C125 C126 R140 R141 R142 R143 C347 R243 C127 C227 R242 R241 R[...]

36 36 MZ-B100 6-8. SCHEMA TIC DIA GRAM – MAIN Section (2/4) – z Refer to page 29 f or Notes. z Refer to page 29 for W aveforms. z Refer to pa ge 39 - 41 for IC Block Dia grams. C705 C706 C707 C701 C702 C703 RB701 RB702 C711 R701 R703 C715 C716 C712 R903 R906 R907 R908 R912 R930 R911 D901 R916 R917 R918 R910 C914 C916 L901 10 µ H 10 µ H L903 6[...]

37 37 MZ-B100 6-9. SCHEMA TIC DIA GRAM – MAIN Section (3/4) – z Refer to pa g e 29 for Notes. z Refer to page 29 for W aveforms. z Refer to pa ge 39 - 41 for IC Block Diagrams. Q604 C517 C520 C521 C522 C523 C507 R502 C505 R507 R508 R503 R504 C512 C513 C508 C509 C514 R505 C518 C527 C519 C524 C525 C630 C631 C632 R 610 R 611 C 615 C 616 C 617 C624[...]

38 38 MZ-B100 6-10. SCHEMA TIC DIA GRAM – MAIN Section (4/4) – z Refer to page 29 f or Notes. z Refer to page 29 f or W avef orms. z Refer to page 39 - 41 for IC Bloc k Diagrams. IC804 IC802 R839 R840 R841 R817 SL802 C806 C807 R804 C805 C826 R837 C804 R803 C802 SL801 R802 R846 R843 RB801 C832 R806 R836 R838 C827 C828 C829 C830 C831 L802 10 µ H[...]

39 MZ-B100 • IC Block Diagrams IC301 AK5354VT -E2 IC501 SN761057DBT 8 7 6 5 ADC CONTROL REGISTER I/F AUDIO I/F CONTROLLER HPF CLOCK DIVIDER VD VA AGND VCOM 1 2 3 4 LIN1 LIN2 RIN1 RIN2 16 PDN 15 CSN 14 CCLK 13 CDTI 11 MCLK 10 BCLK 9 SDTO 12 LRCK IPGA 1 TE REXT Wpp LPF VREF C D D-C Iy Ix Jx Jy A A-C B ADIP-IN FE ABCD OFC-C1 OFC-C2 PS LP EQ AGND RF [...]

40 MZ-B100 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 54 55 56 1 53 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 23 25 26 27 28 VB BATM CHGSW RS INP2 INM2 RF2 DCIN CHGMON SVREF GAIN CHG DREG GND SW RECON OE CLK RI FI EFM VIO VC VRECO1 LI1 PGND1 PGND1 LI1 VRECO2 VREC DTC INP1 INM1 RF1 DW TP DW BT CVREF GND V[...]

41 MZ-B100 IC701 SC111258FCR2 14 13 56 55 CPWI2 CPVI2 CPUI2 COM2 RI2 FI2 UI1 PWM1 CPUO1 CPWO1 VG VC 36 37 38 39 40 41 52 51 50 49 48 47 46 45 44 43 42 23 24 25 12 11 10 9 8 7 6 5 4 3 2 1 GND1 OE OE OE CPWO2 CPVO2 CPUO2 PWM2 UI2 VI2 WI2 PGNDW2 WO2 VMVW2 VO2 PGNDUV2 29 30 31 32 33 34 35 UO2 VMU2 VMR2 RO2 PGND2 FO2 VMF2 VI1 WI1 PGNDW1 WO1 WMVW1 VO1 PG[...]

42 MZ-B100 SECTION 7 EXPLODED VIEWS NO TE : • -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 ex[...]

43 MZ-B100 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 4-984-017-01 SCREW (1.7), T APPING 52 3-034-792-01 SCREW , T APPING (B2.0) 53 3-235-185-01 COVER (REC) 54 3-235-184-01 SPRING (REC), COMPRESSION 55 1-476-937-11 KEY BOARD UNIT 56 3-235-172-01 CUSHION (MICROPHONE) 57 3-235-179-01 SPRING (SOLENOID), TENSION 58 1-4[...]

44 MZ-B100 7-3. CABINET (BEL T) SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 3-225-873-31 SCREW , ES LOCK (L:3) * 102 A-3021-591-A MAIN BOARD, COMPLETE 103 3-235-156-11 CABINET (BEL T) 105 4-223-096-01 KNOB (OPEN) 106 3-235-160-01 CABINET (FRONT) 107 X-3381-101-1 CHASSIS ASSY , SET 108 3-235-159-01 COVER (MD[...]

45 MZ-B100 7-4. MECHANISM DECK SECTION (MT -MZB100-171) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 151 X-3379-498-1 HOLDER ASSY 152 3-224-779-01 SPRING, THRUST DETENT 153 3-225-996-01 SCREW (M1.4)(EG),PRECISION P AN 154 X-3379-497-1 CHASSIS ASSY 155 4-222-218-01 GEAR (HD) 156 4-222-223-01 SHAFT , SUB 157 4-222-226-01 [...]

46 MZ-B100 SECTION 8 ELECTRICAL P ARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * A-3021-591-A MAIN BOARD, COMPLETE ********************* <CAP ACITOR> C101 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C102 1-164-874-11 CERAMIC CHIP 100PF 5% 50V C103 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C104 1-125-837-11 CERAM[...]

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 47 MZ-B100 C242 1-164-874-11 CERAMIC CHIP 100PF 5% 50V C301 1-113-600-11 T ANT AL. CHIP 2.2uF 20% 6.3V C302 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V C303 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V C304 1-125-839-11 T ANT AL. CHIP 47uF 20% 6.3V C305 1-117-919-11 T ANT AL. CHIP 10u[...]

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 48 MZ-B100 C813 1-125-840-11 T ANT ALUM 10uF 20% 6.3V C814 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C815 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C816 1-164-943-11 CERAMIC CHIP 0.01uF 10% 16V C817 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V C818 1-164-935-11 CERAMIC CHIP 470PF 10% 5[...]

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 49 MZ-B100 MAIN L802 1-469-535-21 INDUCTOR 10uH L901 1-469-367-21 INDUCTOR 10uH L902 1-414-398-11 INDUCTOR 10uH L903 1-419-952-21 INDUCTOR 68uH L904 1-469-426-21 INDUCTOR 100uH L905 1-419-949-21 INDUCTOR 22uH <TRANSISTOR> Q101 8-729-420-74 TRANSISTOR 2SD1328-RST Q201 8-[...]

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 50 MZ-B100 MAIN R222 1-218-977-11 RES-CHIP 100K 5% 1/16W R223 1-218-977-11 RES-CHIP 100K 5% 1/16W R224 1-208-715-11 MET AL CHIP 22K 1% 1/16W R226 1-208-715-11 MET AL CHIP 22K 1% 1/16W R227 1-208-935-11 MET AL CHIP 100K 1% 1/16W R228 1-208-927-11 MET AL CHIP 47K 1% 1/16W R229 [...]

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 MZ-B100 R829 1-218-959-11 RES-CHIP 3.3K 5% 1/16W R830 1-218-945-11 RES-CHIP 220 5% 1/16W R831 1-218-990-11 SHORT 0 R832 1-208-703-11 MET AL CHIP 6.8K 1% 1/16W R833 1-208-707-11 MET AL CHIP 10K 1% 1/16W R834 1-218-941-11 MET AL CHIP 100 1% 1/16W R835 1-208-711-11 MET AL CHI[...]

52 MZ-B100 REVISION HIST OR Y 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. V er . Date Description of Revision 1.0 2001.10 Ne w[...]