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M-800V/850V

SERVICE MANUAL

Ver 1.2  2004.08

Photo : M-850V

SPECIFICATIONS

Model Name Using Similar Mechanism

M-730V/830V

Tape Transport Mechanism Type

MZ-730V-99

MZ-800V-99

US Model

M-850V

AEP Model

M-850V

E Model

M-800V/850V

Chinese Model

East European Model

M-800V

Tourist Model

M-850V

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

9-873-543-03

2004H16-1

© 2004.08

MICROCASSETTE

TM

-CORDER

Tape

 (normal position type)

Recording system

2-track 1-channel monaural

Speaker

Approx. 2.8 cm (1

1

8

 in.) dia.

Tape speed

2.4 cm/s (

15

16

 ips), 1.2 cm/s (

15

32

 ips)

Frequency range

300 - 4 000 Hz (with TAPE SPEED switch at 2.4 cm/s)

Input

Microphone input jack (minijack/PLUG IN POWER)
sensitivity 0.21 mV for 3 k

 or lower impedance microphone

Output

Earphone jack (minijack) for 8 - 300 

 earphone

Power output (at 10% harmonic distortion)

250 mW

Power requirements

3 V DC batteries size AAA (R03) 

×

 2/External DC 3V power sources

Dimensions (w/h/d)

Approx. 58.5 

×

 100 

×

 22.5 mm (2

3

8

  

×

 4 

×

 

29

32

 in.) incl. projecting parts

and controls

Mass

Approx. 110 g (3.9 oz) (main unit only)

Supplied accessories

Microcassette tape MC-30 (1) (European model and world model of
M-850V only)
Batteries R03 (SB) (2) (European model and world model of M-850V
only)
Carrying pouch (1) (M-850V and European model of M-800V only)

Design and specifications are subject to change without notice.

Summary of Contents for M-800V

Page 1: ...32 ips Frequency range 300 4 000 Hz with TAPE SPEED switch at 2 4 cm s Input Microphone input jack minijack PLUG IN POWER sensitivity 0 21 mV for 3 kΩ or lower impedance microphone Output Earphone jack minijack for 8 300Ω earphone Power output at 10 harmonic distortion 250 mW Power requirements 3 V DC batteries size AAA R03 2 External DC 3V power sources Dimensions w h d Approx 58 5 100 22 5 mm 2 ...

Page 2: ...Rear Sub Assy Lid Battery Case 5 2 3 MAIN Board Section 5 2 4 LED Board Battery Holder 6 2 5 Mechanism Deck MZ 730V 99 MZ 800V 99 6 2 6 Speaker 2 8cm SP901 7 2 7 Microphone MIC901 7 2 8 Ceramic Head HRPE901 902 and DC Motor M901 8 3 MECHANICAL ADJUSTMENTS 9 4 ELECTRICAL ADJUSTMENTS 9 5 DIAGRAMS 5 1 Block Diagram 11 5 2 Printed Wiring Board 12 5 3 Schematic Diagram 13 5 4 Block Diagram 14 6 EXPLODE...

Page 3: ...on indicators VOL EAR Tape counter VOR REC lamp M 850V only REC BATT lamp M 800V only FAST PB M 850V only CUE MARKER M 850V only BATT E lamp M 850V only Microphone z PAUSE CUE REVIEW Tx TAPE SPEED MIC PLUG IN POWER DIR FAST PB M 850V only This section is extracted from instruction manual ...

Page 4: ...order given 2 1 Cassette Lid Assy Cabinet rear sub assy Battery case lid LED board Battery hoder Mechanism deck MZ 730V 99 Speaker 2 8cm SP901 Ceramic head HRPE901 902 Microphone MIC901 Cassette lid assy MAIN board section Set 2 3 6 cassette lid assy 5 4 1 Open the cassette lid assy by pushing button STOP 5 While push cassette lid assy a bove remove ...

Page 5: ...case lid 4 5 screw B1 7x9 7 screw IB lock 6 screw IB lock 9 MAIN board 3 Remove the soldering two portions 8 2 Remove the soldering eight portions 1 Remove the soldering two portions 4 Remove the soldering four portions 2 2 Cabinet Rear Sub Assy Battery Case Lid 2 3 MAIN Board Section ...

Page 6: ...attery holder 2 3 4 1 Remove the soldering four portions On attaching the battery coil spring fit it to the groove on the battery holder 3 1 2 7 Mechanism deck MZ 730V 99 MZ 800V 99 4 button STOP 5 button PLAY 6 button REC 2 4 LED Board Battery Holder 2 5 Mechanism Deck MZ 730V 99 MZ 800V 99 Ver 1 1 2004 01 ...

Page 7: ...7 M 800V 850V 2 knob DIR 1 4 3 two screws B2 0 5 speaker 2 8cm SP901 1 claw 2 claw 4 microphone MIC901 3 microphone case 5 microphone cushion 2 6 Speaker 2 8cm SP901 2 7 Microphone MIC901 ...

Page 8: ...or M901 DC motor M901 fly wheel tape counter qs belt qa belt How to attach the belt 2 arm pinch roller assy 1 claw 5 ceramic head HRPE901 8 ceramic head HRPE902 6 screw M1 4 4 screw M1 4 3 screw M1 4x2 5 7 screw M1 4x2 5 MZ 800V 99 MZ 730V 99 0 DC motor M901 DC motor M901 fly wheel tape counter qs belt qa belt How to attach the belt 2 8 Ceramic Head HRPE901 902 and DC Motor M901 Ver 1 1 2004 01 ...

Page 9: ...djustment Location Test Tape Type Signal Used for Tape Speed cm s S 2 A030A 3 kHz 20 dB HeadAzimuthAdjustment 2 4 WS 24 3 kHz 10 dB Tape SpeedAdjustment 1 2 2 4 SECTION 4 ELECTRICAL ADJUSTMENTS 2 Turn the adjustment screw to obtain the maximum reading on level meter Note Several peaks may appear but the maximum First remove the arm EAR jack J103 set 16 Ω test tape S 2 A030A 3 kHz 20 dB level meter...

Page 10: ...he end of the tapeshould be within 0 5 Adjustment Location First remove the plate blind 1 Tape Speed 2 4 cm s Playback WS 24 tape center part and adjust RV601 so that reading on the digital frequency counter becomes 3 000 Hz 2 Tape Speed 1 2 cm s Playback WS 12 tape center part and adjust RV602 so that reading on the digital frequency counter becomes 3 000 Hz 0000 EAR jack J103 digital frequency c...

Page 11: ...N BOARD J102 MIC901 PRE AMP RIPPLE FILTER S501 VOR 1 7 16 15 IC101 1 2 PRE AMP ALC POWER AMP A POWER AMP B RF OUT RV101 S101 2 6 S101 6 6 REC PB REC PB PB REC REC PB S101 5 6 J103 SP901 SPEAKER S401 D402 D403 IC401 Q301 Q302 DIR SWITCH IC101 2 2 POWER AMP ALC Q602 1 5 8 6 IN RCV TIME VCC OUT1 IC501 SIGNAL LEVEL SENSOR Q501 MUTE 850V Q701 BUFFER Q702 CUE OSC Q703 Q705 CUE SWITCH Q601 SWITCH Q706 OS...

Page 12: ... DESIGNATION R03 2PCS 3V BATT RED ORN BRK WHT RED ORN BRK WHT CUE GND S601 S301 HRPE901 M901 MOTOR HRPE902 MIC901 J102 1 2cm 2 4cm ON OFF X X J103 SP901 REC PB SPEAKER DC IN 3V J101 1 683 938 11 11 1 8 9 16 MAIN BOARD SIDE A POWER S602 S501 DIR ON OFF VOR 1 683 938 11 11 C104 850V 850V 850V 850V 800V REC OFF L H FAST PB 850V 850V TAPE SPEED CUE MARKER BATTERY PAUSE EAR MIC PLUG IN POWER VOL 850V 8...

Page 13: ...pecified C panel designation A B Line H adjustment for repair Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal Voltage is dc with respect to ground under no signal condition no mark PB REC Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path E PB a REC Refer page 14 for IC Block Diag...

Page 14: ...W INB RF OUT RF IN 1 2 3 4 5 6 7 8 VOLTAGE UP CIRCUIT VREF NC VCC VS HYS NC CT GND OUT 1 2 3 4 8 7 6 5 GND AMP OUT GAIN CONT INPUT VCC OUTPUT2 OUTPUT1 RECOVERY TIME CAP UOUT DR VCC LB FC OUT VSP IN VREF S S 20 19 18 17 16 15 14 13 12 11 VOUT WOUT P GND WB VB UB OSC COM GND RI 1 2 3 4 5 6 7 8 9 10 DRIVER STARTUP DIR LOGIC STARTUP DET WAVEFORM DET CURRENT DET SPEED DET LOCKING PROTECT OSC BIAS REF V...

Page 15: ...ARALLEL 6 3 328 319 01 STRAP HAND 7 A 3174 102 A LID BLOCK ASSY BATTERY CASE 8 3 235 866 01 KNOB VOR 9 X 3381 382 1 LID ASSY CASSETTE 10 A 3174 181 A CASE BLOCK ASSY MICROPHONE 11 3 235 873 01 CUSHION MICROPHONE 12 3 237 160 01 BUTTON REC 13 3 237 158 01 BUTTON PLAY 14 3 237 159 01 BUTTON STOP 15 3 235 865 01 KNOB DIR 16 A 3021 622 A MAIN BOARD COMPLETE 850V 16 A 3021 652 A MAIN BOARD COMPLETE 800...

Page 16: ...IMITTER ASSY 717 3 028 955 02 SPRING LOCK TENSION 718 X 3378 034 3 LEVER LOCK ASSY RVS 719 4 992 239 01 WASHER A 720 3 028 967 05 LEVER PAUSE RELEASE 721 3 028 954 03 SPRING SW LEVER TENSION 722 3 321 813 61 WASHER COTTER POLYETHYLENE 723 3 028 928 06 LEVER EJECT 724 3 028 964 02 SPRING SLIDE TORSION 725 4 926 562 01 WASHER STOPPER 726 3 028 927 05 LEVER STOP 727 X 3378 643 2 LEVER REVERSE SW ASSY...

Page 17: ... 3 321 813 61 WASHER COTTER POLYETHYLENE 761 1 548 579 41 COUNTER TAPE SMALL TYPE 762 X 3380 834 4 CHASSIS COMP ASSY R 763 3 343 948 01 BELT 764 3 028 922 05 BRACKET N HEAD 765 X 3376 234 3 BRACKET R ASSY HEAD 766 3 028 962 01 SPRING TORSION 767 3 028 910 12 GUIDE R TAPE 768 3 028 921 02 LEVER HEAD ROTARY 769 3 029 808 03 BRACKET MOTOR 770 3 365 053 01 SHEET BA ADHESIVE 771 3 704 197 71 SCREW M1 4...

Page 18: ...58 X 3376 232 7 LEVER PLAY ASSY 759 X 3376 235 4 ARM PINCH ROLLER ASSY 760 3 321 813 61 WASHER COTTER POLYETHYLENE 761 1 548 579 41 COUNTER TAPE SMALL TYPE 762 X 3382 250 3 CHASSIS COMP ASSY R B 763 3 343 948 01 BELT 764 3 028 922 05 BRACKET N HEAD 765 X 3376 234 3 BRACKET R ASSY HEAD 766 3 028 962 01 SPRING TORSION 767 3 028 910 12 GUIDE R TAPE 768 3 028 921 02 LEVER HEAD ROTARY 770 3 365 053 01 ...

Page 19: ...V C122 1 162 966 11 CERAMIC CHIP 0 0022uF 10 50V C123 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C124 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C301 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C302 1 137 859 11 TANTAL CHIP 220uF 20 4V C303 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C304 1 104 851 11 TANTAL CHIP 10uF 20 00 10V C305 1 115 156 11 CERAMIC CHIP 1uF 10V C306 1 104 851 11 TANTAL CHIP 10uF 20 00 ...

Page 20: ...2K 5 1 16W R114 1 216 825 11 METAL CHIP 2 2K 5 1 16W R116 1 216 825 11 METAL CHIP 2 2K 5 1 16W R117 1 216 829 11 METAL CHIP 4 7K 5 1 16W R118 1 216 829 11 METAL CHIP 4 7K 5 1 16W R119 1 216 825 11 METAL CHIP 2 2K 5 1 16W R120 1 216 793 11 RES CHIP 4 7 5 1 10W R121 1 216 789 11 METAL CHIP 2 2 5 1 16W R122 1 216 825 11 METAL CHIP 2 2K 5 1 16W R123 1 216 813 11 METAL CHIP 220 5 1 16W R124 1 216 801 1...

Page 21: ...AL CHIP 470K 5 1 16W 850V R709 1 216 825 11 METAL CHIP 2 2K 5 1 16W 850V R710 1 216 857 11 METAL CHIP 1M 5 1 16W 850V R711 1 216 821 11 METAL CHIP 1K 5 1 16W 850V R712 1 216 849 11 METAL CHIP 220K 5 1 16W 850V R713 1 216 837 11 METAL CHIP 22K 5 1 16W 850V R714 1 216 837 11 METAL CHIP 22K 5 1 16W 850V R715 1 216 849 11 METAL CHIP 220K 5 1 16W 850V VARIABLE RESISTOR RV101 1 225 597 11 RES VAR CARBON...

Page 22: ...cking 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 2002 02 New 1 1 2004 01 Addition of mechanism deck MZ 800V 99 SPM 03066 1 2 2004 08 Correction of Ref No 762 on Exploded Views SPM 04080 M 800V 850V ...

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