Sony M-98V Service Manual Download Page 7 | Manualshive

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Sony M-98V Service Manual Download Page 7

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3-5. FRAME

• Be careful not to damage the flexible board.
• Remove from

a

to

b

to

c

.

3-6. MODE MOTOR BLOCK

a

a

b

b

c

c

1

screw (1.7x4), tapping (B)

2

cover (HD)

7

frame

3

screw

4

screw

5

absorbent, acoustic, reflection

6

flexible board (head, magnetic)

2

mode motor block

1

screws (M1.4)

3

microphone, electret condenser

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5
6
7
8
9
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Summary of Contents for M-98V

Page 1: ...rements 3 V DC batteries R03 size AAA 2 External DC 3 V power sources Battery life Approximate hours EIAJ Battery Recording Sony alkaline LR03 SG 9 5 Sony R03 SB 3 5 Measured value by the standard of EIAJ Electronic Industries Association of Japan Using a Sony Microcassette tape For maximum performance we recommend that you use SPECIFICATIONS Ver 1 0 1999 03 alkaline batteries Dimensions w h d inc...

Page 2: ...L ADJUSTMENTS 8 6 DIAGRAMS 6 1 IC Pin Description 10 6 2 Block Diagram 12 6 3 Printed Wiring Board 14 6 4 Schematic Diagram 17 7 EXPLODED VIEWS 7 1 Panel Lid Section 22 7 2 Main Board Section 23 7 3 Mechanism Section 1 24 7 4 Mechanism Section 2 25 8 ELECTRICAL PARTS LIST 26 Notes on Chip Component Replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capac...

Page 3: ...he main board removed proceed as follows Service the Main Board 1 Short the BP701 SERVICE on the main board see the Fig 1 2 Refer to the SECTION3 DISASSEMBLY page 5 and open the main board 3 Put a tape in the set 4 Fixed at S703 TAPE DET on mode or connect the jumper wire between TP38 and GND TP66 5 Supply 3 V DC to the battery terminals 6 Rotate the S701 MODE SELECT one turn by hand mode sensor 7...

Page 4: ... 4 SECTION 2 GENERAL This section is extracted from instruction manual ...

Page 5: ...ding to the following sequence Note Follow the disassembly procedure in the numerical order given 3 1 PANEL REAR ASSY When installing position the knobs V O R MIC SENS and the switches Set Panel rear assy Panel lid assy MD block assy Main board complete Frame Mode motor block a b 3 screws M1 4 toothed lock 2 CN102 1 knob EJECT 5 lever C holder assy 4 screw 6 panel lid assy 3 2 PANEL LID ASSY ...

Page 6: ... 4 screws 1 7x3 tapping 5 bracket speaker 6 speaker 2 8cm switches switches spring knob HOLD EJECT knob FF CUE REW REVIEW knobs REC PAUSE REC knob TAPE SPEED knob FAST PB switch 3 3 MD BLOCK ASSY When installing the MD block assy position the knobs with the switches When installing the microphone cabinet assy align the knobs with the spring and switches 3 4 MAIN BOARD COMPLETE When installing posi...

Page 7: ...e board Remove from a to b to c 3 6 MODE MOTOR BLOCK a a b b c c 1 screw 1 7x4 tapping B 2 cover HD 7 frame 3 screw 4 screw 5 absorbent acoustic reflection 6 flexible board head magnetic 2 mode motor block 1 screws M1 4 3 microphone electret condenser ...

Page 8: ...FF REW CQ 201M more than 0 209 oz inch Tape Tension Measurement TAPE SPEED switch 2 4cm s Mode Torque Meter Meter Reading more than 15 g FWD CQ 403M more than 0 53 oz SECTION 4 MECHANICAL ADJUSTMENTS SECTION 5 ELECTRICAL ADJUSTMENTS Standard Input Level Input terminal MIC PLUG IN POWER jack Source impedance 300 Ω Input level 0 77 mV 60 dB Frequency 1 kHz Standard Output Level Output terminal EAR j...

Page 9: ... 24 tape center part in the REV state Check that digital frequency counter reading is within 2 of reading of step 1 4 Tape Speed 1 2cm s REV Playback WS 24 tape center part in the REV state Check that digital frequency counter reading is within 2 of reading of step 2 2 4cm s 60 Hz 1 2cm s 30 Hz Adjustment Location main board 1 Tape Speed 2 4cm s FWD Playback WS 24 tape center part and adjust RV601...

Page 10: ...e 23 FPB CTL O FAST PB servo control signal output H FAST PB on 24 VOR COND1 I VOR IC IC102 NJM2072M detect signal output L VOR on Motor stop 25 VSS Ground 26 PRE AMP O IC101 CX1347N power control signal output H Power on 27 M SPD O Motor speed control signal output CUE increase speed H Increase speed 28 NC Not used Open 29 SUBM CTL O Set up motor control signal output H Motor on 30 M BRK O BSL mo...

Page 11: ...1 POWER SW Q123 124 B 3V PRE POWER AMP IC101 MUTE SW Q127 128 START SWITCH Q601 1 2 614 2 2 MUTE SW Q119 120 VOR POWER SW Q122 B 3V 19 PRE AMP 26 C R CTL VOR COND1 C R COND2 REC CTL2 SERVICE FPB COND 20 24 35 16 40 47 REC CTL1 18 PB CTL 22 MD0 46 MD3 41 MD2 42 MD1 43 TAPE DET 51 REV NAIL 36 FWD NAIL 37 RM COMB 60 M CTL1 33 START CONTROL Q615 M CTL2 15 DIRECTION SWITCH Q601 2 2 614 2 2 SPEED CONTRO...

Page 12: ...E 9 Q126 F 17 Q127 G 14 Q128 G 13 Q601 F 19 Q602 F 19 Q603 F 19 Q604 E 18 Q605 D 19 Q606 D 19 Q607 D 19 Q608 D 20 Q609 F 8 Q610 F 8 Q611 F 8 Q612 F 8 Q613 F 9 Q614 F 18 Q615 E 18 Q701 F 15 Q702 H 15 Q703 H 15 Q704 G 14 Q705 G 17 Q706 G 17 Semiconductor Location Note X parts extracted from the component side internal component b Pattern from the side which enables seeing The other layer s patterns ...

Page 13: ...ed with no cassette installed Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal Voltage and waveforms are dc with respect to ground under no signal detuned conditions no mark REC PB Impossible to measure Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope ...

Page 14: ... views are not supplied Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items 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 Accessories and packing materials are given in the la...

Page 15: ...OLDER ASSY 64 7 627 850 47 SCREW PRECISION P 1 4X1 6 65 3 321 483 11 RING RETAINING 66 3 033 885 01 SPRING REC 67 X 3377 003 1 BRACKET MICROPHONE ASSY 68 3 033 891 01 CUSHION MICROPHONE 69 3 349 825 01 SCREW 70 3 033 867 01 CABINET MIC 71 3 033 870 01 SPRING REC LEAF 72 3 033 869 01 BUTTON REC 73 3 033 868 01 KNOB REC 74 3 033 875 01 LID BATTERY CASE 75 X 3376 996 1 TERMINAL BOARD ASSY 76 3 349 82...

Page 16: ... 0 SPECIAL HEAD 106 3 371 351 01 SPRING AZIMUTH COMPRESSION 107 3 010 172 01 WASHER 108 3 012 219 01 SPACER H ARM 109 3 007 249 01 SPRING H ARM R TORSION 110 3 007 248 01 SPRING H ARM N TORSION 111 X 3377 459 1 ARM R ASSY HEAD 112 X 3377 458 1 ARM N ASSY HEAD 113 3 007 252 01 SPRING LOCK PLATE TENSION 114 3 007 259 01 SCREW M1 4 115 3 378 616 01 WASHER 116 3 033 985 01 GEAR MODE 117 3 033 984 01 G...

Page 17: ... 239 01 REFLECTOR 160 3 007 190 01 GEAR REEL 161 3 007 251 01 SPRING TU ARM TENSION 162 3 033 896 01 BELT CAPSTAN 163 X 3376 999 1 FLYWHEEL ASSY 164 3 328 432 01 WASHER STOPPER 165 3 331 007 11 WASHER 166 X 3377 408 1 GEAR ASSY LIMITER 167 X 3377 409 1 ARM ASSY LIMITER 168 3 338 625 51 SCREW PRECISION WASHER HEAD 169 3 014 475 01 SHEET MOTOR 170 3 007 250 01 SPRING PRESS ARM TENSION 171 X 3377 000...

Page 18: ...125 777 11 CERAMIC CHIP 0 1uF 10 10V C119 1 135 201 11 TANTALUM CHIP 10uF 20 4V C120 1 107 819 11 CERAMIC CHIP 0 022uF 10 16V C121 1 164 937 11 CERAMIC CHIP 0 001uF 10 16V C122 1 164 937 11 CERAMIC CHIP 0 001uF 10 16V C123 1 104 847 11 TANTAL CHIP 22uF 20 4V C124 1 135 201 11 TANTALUM CHIP 10uF 20 4V C125 1 125 777 11 CERAMIC CHIP 0 1uF 10 10V C126 1 125 777 11 CERAMIC CHIP 0 1uF 10 10V C127 1 125...

Page 19: ...NSISTOR 2SC3929 Q102 8 729 420 24 TRANSISTOR 2SB1218A QRS Q103 8 729 403 45 TRANSISTOR XN1115 Q104 8 729 028 26 FET 2SK1829 TE85L Q105 8 729 026 30 FET 2SJ346 TE85L Q106 8 729 230 63 TRANSISTOR 2SC4116 YG Q107 8 729 422 41 TRANSISTOR XN1114 Q108 8 729 425 18 TRANSISTOR XN4504 Q109 8 729 420 50 TRANSISTOR UN5215 Q111 8 729 400 56 TRANSISTOR 2SD1328 T Q112 8 729 800 71 TRANSISTOR 2SB815B7 TB Q113 8 ...

Page 20: ...P 100K 5 1 16W R154 1 218 965 11 RES CHIP 10K 5 1 16W R155 1 218 941 11 RES CHIP 100 5 1 16W R156 1 218 975 11 RES CHIP 68K 5 1 16W R157 1 218 961 11 RES CHIP 4 7K 5 1 16W R158 1 218 977 11 RES CHIP 100K 5 1 16W R159 1 218 973 11 RES CHIP 47K 5 1 16W R160 1 218 949 11 RES CHIP 470 5 1 16W R161 1 216 801 11 METAL CHIP 22 5 1 16W R163 1 218 977 11 RES CHIP 100K 5 1 16W R164 1 218 977 11 RES CHIP 100...

Page 21: ...B S703 1 762 835 11 SWITCH PUSH 1 KEY TAPE DET S704 1 771 483 41 SWITCH PUSH 1 KEY HOLD S705 1 771 630 21 SWITCH SLIDE REC PAUSE REC S706 1 771 630 21 SWITCH SLIDE FF CUE REW REVIEW TRANSFORMER T101 1 429 933 11 TRANSFORMER BIAS OSCILLATION VIBRATOR X701 1 767 359 11 VIBRATOR CERAMIC 4MHz MISCELLANEOUS 4 1 418 286 11 SWITCH UNIT 85 1 673 129 11 MOTOR FLEXIBLE BOARD HRPE9011 500 598 11 HEAD MAGNETI...

Page 22: ... 30 Sony Corporation Personal A V Products Company 9 926 967 11 M 98V 99C0485 1 Printed in Japan C1999 3 Published by Quality Engineering Dept Shinagawa ...

Page 23: ......

Page 24: ...Ref No Location Q104 E 8 Q105 E 7 Q106 F 7 Q107 D 16 Q108 D 16 Q109 D 15 Q111 D 6 Q112 E 15 Q113 E 17 Q114 H 12 Q115 E 15 Q116 D 15 Q117 F 14 Q118 F 14 Q119 F 12 Q120 G 12 Q121 G 12 Q122 G 14 Q123 F 14 Q124 G 13 Q125 E 9 Q126 F 17 Q127 G 14 Q128 G 13 Q601 F 19 Q602 F 19 Q603 F 19 Q604 E 18 Q605 D 19 Q606 D 19 Ref No Location Note X parts extracted from the component side internal component b Patte...

Page 25: ...stalled Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal Voltage and waveforms are dc with respect to ground under no signal detuned conditions no mark REC PB Impossible to measure Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may...

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Page 29: ...IP 470 5 1 16W R161 1 216 801 11 METAL CHIP 22 5 1 16W R163 1 218 977 11 RES CHIP 100K 5 1 16W R164 1 218 977 11 RES CHIP 100K 5 1 16W R165 1 216 797 11 METAL CHIP 10 5 1 16W R167 1 218 969 11 RES CHIP 22K 5 1 16W R168 1 218 969 11 RES CHIP 22K 5 1 16W R169 1 218 963 11 RES CHIP 6 8K 5 1 16W R170 1 218 933 11 RES CHIP 22 5 1 16W R171 1 218 933 11 RES CHIP 22 5 1 16W R601 1 220 803 81 RES CHIP 4 7 ...

Page 30: ...6W R735 1 208 683 11 METAL CHIP 1K 0 50 1 16W R801 1 218 977 11 RES CHIP 100K 5 1 16W R802 1 218 953 11 RES CHIP 1K 5 1 16W VARIABLE RESISTOR RV101 1 225 502 11 RES VAR CARBON 10K 10K VOL RV601 1 241 477 11 RES ADJ CERMET 4 7K RV602 1 241 478 11 RES ADJ CERMET 10K SWITCH S101 1 571 277 51 SWITCH SLIDE TAPE SPEED S102 1 572 922 11 SWITCH SLIDE MIC SENS S103 1 572 922 11 SWITCH SLIDE V O R S701 1 77...

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