Sony BM-87DST Marketing, Service Manual

Page 1: ...SPECIFICATIONS US Model Australian Model Model Name Using Similar Machanism NEW Tape Transport Mechanism Type MB 87 59 Ver 1 1 2003 06 9 927 638 12 2003F02 1 2003 06 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation ...

Page 2: ...S LIST ARE CRITICAL TO SAFE OPERATION REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY TABLE OF CONTENTS Notes on chip component replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat SECTION 1 SERVICING NOTE NOTES FOR REPAIRING 1 POWER S101 Switch...

Page 3: ... 3 SECTION 2 GENERAL This section is extracted from instruction manual ...

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Page 13: ...ocedure Cabinet front ASSY Cabinet rear ASSY Set Mechanism deck Servo board Head magnetic rec PB erase HRP901 Motor F R ASSY M902 Belt FWD Belt F R LED board Main board Connecter 12P board Motor ASSY FWD M901 1 Screws BVTP 3x12 2 Cabinet front ASSY 1 Screws BVTP 3x12 Cabinet rear ASSY 3 5 7 1 Claw 2 Projection 4 Screws BVTP 3x6 6 Screws P 2 6x8 Cabinet rear ASSY Main board Connector 12P board Heat...

Page 14: ... 14 3 3 LED BOARD 3 4 MECHANISM DECK 2 Cabinet front ASSY 1 Screws B 2x4 LED board 2 3 Cabinet front ASSY 1 Open Lid ASSY cassette Mechanism deck ...

Page 15: ...c rec PB erace HRP901 1 Screw BTP 2 6x6 4 Screw lock 3 Screw P 2x2 5 6 Claws Servo board Mechanism deck Motor F R ASSY M902 7 5 1 Belt FWD 3 Belt FWD Belt FWD Belt FWD 2 Belt F R Mechanism deck Mechanism deck Counter tape Flywheel ASSY Belt F R Pulley reflector Idler F R Motor F R ASSY M902 Motor FWD ASSY M901 ...

Page 16: ... 16 3 7 MOTOR FWD ASSY M901 3 1 2 Motor FWD ASSY M901 Mechanism deck Cushion M ...

Page 17: ...oz inch Forward CQ 102C 4 to 8 g cm Back Tension 0 056 to 0 11 oz inch Tape Tension Measurement Mode Tension Meter Meter Reading Forward CQ 403A 100 to 170 g 3 53 to 5 99 oz Forward Torque Adjustment Torque meter Meter reading Procedure Adjust the forward torque by CQ 102C 20 to 45 g cm replace the spacer shown in 0 28 to 0 62 oz inch below chart Spacer Part No t 3 307 493 01 0 1 3 307 493 11 0 15...

Page 18: ...ment screw to obtain the maximum reading on level meter Adjustment should be finished with the screw in tightening di rection 3 After the adjustment lock the adjustment screw with suitable locking compound Adjustment Location record playback erase head Tape Speed Adjustment Setup Mode Playback LISTEN test tape WS 48 3kHz 0dB tape end portion frequency counter earphone jack Procedure SPEED CONTROL ...

Page 19: ...M OUT O FF REW motor output 36 REW M OUT O 37 A OFF OUT O Motor Auto off output Motor Auto off no cassette or after three minutes after STOP H At the other L 38 STAND BY I POWER switch input POWER switch ON H POWER switch OFF L 39 TAB IN I TAB erase proof detection switch input Cassette with TAB L Cassette without TAB H 40 MC IN I Cassette detection switch input With a cassette L Without a cassett...

Page 20: ... oscillation 4 19MHz 59 X2 O Output for clock oscillation 4 19MHz 60 HU LIS IN I HU LISTEN key input At LISTEN key in of the hand control unit HU 80 L At the other H 61 BS IN I HU BS key input At BS key in of the hand unit HU 80 L At the other H 62 PB OUT O Playback control output At LISTEN H At the other L 63 MUTE OUT O Amplifier mute output At LISTEN DICT TEL REC H At the other L 64 FS IN I HU F...

Page 21: ... 21 22 BM 87DST 6 2 BLOCK DIAGRAM Note Signal path E PB a REC ...

Page 22: ... PM901 STOP PLUNGER PM903 BRAKE PLUNGER BLK BLK WHT RED R641 1 5 IC604 1 5 13 15 20 24 10 12 IC601 R602 J611 Q601 Q618 D601 C MAIN BOARD CN108 Page 30 BRN RED ORG YEL WHT BLU B MAIN BOARD CN107 Page 30 BRN RED ORG YEL WHT A MAIN BOARD CN106 Page 30 BRN RED WHT ORG YEL BLU R616 11 11 1 677 763 RV602 RV601 BLK BLK S602 TAB DET S601 CASSETTE DET 23 24 BM 87DST D601 B 6 D604 G 6 D605 B 2 D606 G 6 IC60...

Page 23: ...se specified U B Line H adjustment for repair Power voltage is dc 9 V and fed with regulated dc power supply from external power voltage jack J103 Voltages and waveforms are dc with respect to ground under no signal conditions no mark LISTEN REW FF Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a osci...

Page 24: ... 4 8 IC103 5 1 4 8 IC102 5 1 1 5 8 16 15 10 9 7 14 IC111 IC201 8 1 7 14 IC101 8 65 80 75 70 1 5 10 15 20 24 IC109 40 25 30 35 64 41 45 50 55 60 1 5 7 14 10 IC104 8 1 5 10 1 5 8 16 15 10 9 7 14 IC105 IC106 8 D108 D104 D109 Q105 D106 Q107D117 D118 D105 D102 D101 ECB ECB ECB ECB Q119 ECB Q102 Q110 ECB Q108 ECB Q103 ECB Q104 ECB Q111 D119 ECB Q112 ECB ECB Q122 ECB ECB ECB Q116 ECB ECB ECB Q125 Q126 Q1...

Page 25: ...al conditions no mark STOP LIS LISTEN FE FAST ERASE REC DICT TEL REC F FF R REW FWD LISTN DICT TEL LTR M OFF MOTOR OFF M ON MOTOR ON NO CAS NO CASSETTE HU LIS LISTN mode HU 80 FOOT LIS LISTN mode FS 75 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 be noted due t...

Page 26: ...13 01 WASHER M901 X 3369 458 1 MOTOR FWD ASSY PM901 X 3362 935 1 SOLENOID ASSY STOP PM902 1 454 459 21 SOLENOID PLUNGER FWD PM903 1 454 509 11 SOLENOID PLUNGER BRAKE not supplied not supplied 15 12 17 15 PM901 PM902 M901 Supplied with PM901 Supplied with PM902 135 including 60 68 69 78 11 See page 36 PM903 123 137 138 134 126 130 127 117 129 128 111 112 102 133 102 102 109 108 106 105 not supplied...

Page 27: ...TOR 6P CN103 1 564 004 11 PIN CONNECTOR 5P CN104 1 564 001 11 PIN CONNECTOR 2P CN105 1 506 469 11 PIN CONNECTOR 4P CN106 1 564 005 11 PIN CONNECTOR 6P CN107 1 564 004 11 PIN CONNECTOR 5P CN108 1 506 471 11 PIN CONNECTOR 6P DIODE D101 8 719 914 43 DIODE DAN202K D102 8 719 914 42 DIODE DA204K D104 8 719 914 43 DIODE DAN202K D105 8 719 914 43 DIODE DAN202K D106 8 719 914 43 DIODE DAN202K D107 8 719 8...

Page 28: ...HIP 560 5 1 10W R149 1 216 037 00 METAL CHIP 330 5 1 10W R150 1 216 081 00 METAL CHIP 22K 5 1 10W R151 1 216 115 00 METAL CHIP 560K 5 1 10W R152 1 216 077 91 RES CHIP 15K 5 1 10W R153 1 216 049 91 RES CHIP 1K 5 1 10W R154 1 216 105 91 RES CHIP 220K 5 1 10W R155 1 216 065 91 RES CHIP 4 7K 5 1 10W R156 1 216 057 00 METAL CHIP 2 2K 5 1 10W R157 1 216 055 00 METAL CHIP 1 8K 5 1 10W R158 1 216 063 91 R...

Page 29: ...021 91 CERAMIC CHIP 0 01uF 10 50V C609 1 126 513 11 ELECT 47uF 20 6 3V C610 1 115 872 11 ELECT 2 2uF 20 50V C611 1 163 251 11 CERAMIC CHIP 100PF 5 50V C613 1 163 077 00 CERAMIC CHIP 0 1uF 10 25V C614 1 163 077 00 CERAMIC CHIP 0 1uF 10 25V C615 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C616 1 163 021 91 CERAMIC CHIP 0 01uF 10 50V DIODE D601 8 719 105 45 DIODE RD3 3M B1 D604 8 719 054 58 DIODE D1F20 TL...

Page 30: ...2 4cm s RV602 1 237 604 11 RES ADJ METAL GRAZE 4 7K TAPE SPEED ADJUSTMENT 4 8cm s SWITCH S601 1 572 248 11 SWITCH LEAF CASSETTE DET S602 1 571 281 11 SWITCH LEAF TAB DET THERMISTOR THP601 1 809 132 11 THERMISTOR POSITIVE THP602 1 809 133 11 THERMISTOR POSITIVE MISCELLANEOUS 74 1 251 057 11 COUNTER TAPE IC111 8 759 008 67 IC MC14066BF HRP901 1 543 564 11 HEAD MAGNETIC REC PB ERASE M901 X 3369 458 1...

Page 31: ... 43 BM 87DST MEMO ...

Page 32: ... 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 Date Description of Revision 1 0 2000 01 New 1 1 2003 06 Addition of Australian model ENG 03035 ...