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SERVICE MANUAL

Ver 1.0  2000. 10

CASSETTE PLAYER

E Model

Chinese Model

SPECIFICATIONS

WM-EX910

Photo: Blue model

Manufactured under license from Dolby Laborato-
ries.
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.

Model Name Using Similar Mechanism

NEW

Tape Transport Mechanism Type

MT-WMEX910-162

Battery life 

(Approx. hours)

(in playback)

 (EIAJ*)

Rechargeable NC-6WM

20

fully charged

Sony alkaline LR6 (SG)**

66

Rechargeable NC-6WM

84

Sony alkaline LR6 (SG)
used together

* Measured value by the standard

of EIAJ (Electronic Industries
Association of Japan). (Using a
Sony HF series cassette tape)

**When using a Sony LR6 (SG)

“STAMINA” alkaline dry battery
(produced in Japan).

Frequency response (Dolby NR off)

Playback: 30 - 18 000 Hz

Output

Headphones (

i

 jack)

Load impedance 8 - 300 

Power requirements

1.5 V
One rechargeable battery
One R6 (size  AA) battery

Dimensions (w/h/d)

Approx. 76.3 

×

 108.4 

×

 17.6 mm

(3

1

8

 

×

 4

3

8

 x 

23

32 

inches)

Mass

Approx. 140 g (5.0 oz.)

Supplied accessories

Battery case (1)
Stereo headphones or earphones with

remote control  (1)

Battery charger (1)
Rechar
geable battery (NC-6WM, 1.2V,

600 mAh, Ni-Cd) (1)

Rechargeable battery carrying case (1)
Carrying pouch (1)

Design and specifications subject to
change without notice.

www. xiaoyu163. com

QQ 376315150

9

9

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8

9

4

2

9

8

TEL 13942296513

9

9

2

8

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4

2

9

8

0

5

1

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1

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Q

Q

TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for Walkman WM-EX910

Page 1: ...6 SG STAMINA alkaline dry battery produced in Japan Frequency response Dolby NR off Playback 30 18 000 Hz Output Headphones i jack Load impedance 8 300 Ω Power requirements 1 5 V One rechargeable battery One R6 size AA battery Dimensions w h d Approx 76 3 108 4 17 6 mm 31 8 43 8 x 23 32 inches Mass Approx 140 g 5 0 oz Supplied accessories Battery case 1 Stereo headphones or earphones with remote c...

Page 2: ...round 270 C dur ing repairing Do not touch the soldering iron on the same conductor of the circuit board within 3 times Be careful not to apply force on the conductor when soldering or unsoldering SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION REPLACE THESE COMPONENTS WITH SO...

Page 3: ...slider NR will move when the regulated power supply switch is set to OFF once and then set to ON Move the DI RECTION switch S702 according to this timing and set to the center position 3 FF REW modes 1 Check that the preset state is set 2 Input the square wave or sine wave to the TP31 PH S TP32 PH T and the TP GND 3 Move the jog lever S703 toward FF or REW 4 PLAY mode 1 Check that the preset state...

Page 4: ...lutch assy F idler gear B gear Y cam gear gear REEL side T gear REEL side S motor pulley idler gear A side T idler gear A side S gear NR FWD left side REV right side insert flywheel N insert flywheel R reverse pulley clutch assy F gear Y cam gear gear REEL side S motor pulley idler gear A side S gear FR REW right side www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 ...

Page 5: ...er Levier Jog Jog Hebel FWD REV HOLD Plug in firmly Branchez fermement Fest einstecken Hold shutter Cache de verrouillage Schutzschieber Joglever Levier Jog Jog Hebel FF REW E HOLD MODE SOUND F G OPEN Hold shutter Cache de verrouillage Schutzschieber VOL AVLS www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 8924982...

Page 6: ...ASSY CASSETTE LEVER N2 R2 ASSY PINCH S701 knob vol Note On installation lid assy cassette adjust the S701 and knob vol lid assy cassette 4 Close terminal board assy 5 two screws MI 6 screw MI 2 claw 1 open lid battery case 3 lid battery case 7 case section 5 two screws MI www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 3763...

Page 7: ...lider S702 Note On installation MAIN board adjust the S702 and slider 2 terminal board battery 1 Remove solder of terminal board battery 3 belt F4 pulley motor pulley reverse flywheel R insert belt F4 flywheel N insert www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299...

Page 8: ...wo screws MI 2 screw 3 boss 1 Open lid assy cassette 4 lid sub assy cassette www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ...er B M lock 5 lever S M lock 1 two screws M1 4 4 screws M1 4 8 Remove six solders of head flexible board 9 holder FA assy www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 10: ...assy pinch in the direction of the arrow holder FA assy 4 boss lever head 3 claw 1 claw 2 5 head magnetic playback HP901 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 11: ...h SECTION 4 MECHANICAL ADJUSTMENTS SECTION 5 ELECTRICAL ADJUSTMENTS PRECAUTION 1 Specified voltage 1 3 V DC 2 Switch position VOL AVLS Center 3 Remote control setting HOLD switch OFF VOL knob MAX DOLBY NR OFF SOUND mode Normal 0 dB 0 775 V Test tape Type Signal Used for WS 48A 3 kHz 0 dB Tape Speed Adjustment Tape Speed Adjustment Setting Procedure 1 Playback WS 48A tape center in the FWD state 2 ...

Page 12: ...RY NC 6WM DRY BATTERY SIZE AA IEC DESIGNATION R6 1PC 1 5V BATTERY CASE DC DC CONVERTER IC701 1 2 3 4 8 7 VOLTAGE DETECT IC702 STOP SWITCH Q702 BATT B RESET SIGNAL GENERATOR IC704 VOLTAGE DETECT IC703 35 15 11 DDC B OUT1 OUT2 OUT3 OUT4 VCC CE DDC B ROTATION DETECT SENSOR T REEL PH702 DDC B ROTATION DETECT SENSOR S REEL PH701 19 CAPSTAN REEL MOTOR SERVO IC601 DECODER SOFT CLIP 13 34 32 31 35 36 1 28...

Page 13: ...1 R611 C610 Q602 B C E PH701 C612 R610 C609 RV601 R606 E C B Q601 C601 R608 R605 R607 C608 IC601 1 9 27 19 10 18 36 28 Q603 R729 R726 R728 R727 S702 DIRECTION FWD r STOP r REV IC701 1 2 3 5 4 L701 D702 A K i J301 VCC DATA REMOTE GND L R COM S703 REW FF PUSH Y x S301 C328 MAIN BOARD SIDE A 1 679 256 11 11 CB301 R205 R204 R201 R202 R105 R102 C203 R203 R104 R103 R101 C103 R303 Q306 B C E C323 Q312 B ...

Page 14: ... no signal conditions no mark PLAY STOP DOLBY NR ON 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 to normal produc tion tolerances Circled numbers refer to waveforms Signal path E PLAY 3 IC705 wl XT1 1 V DIV 20 µs DIV 4 IC705 ef OSC1 1 V DIV 1 µs DI...

Page 15: ...rol signal output to the TA2123AF IC301 L off H on 11 AMP CTL O Also this is used as control signal output for power on off to the TA2123AF IC301 DC DC converter IC701 and voltage detector IC703 L power off H power on 12 MUTE CTL O Power on mute control signal output to the TA2123AF IC301 L mute on 13 A B SW I Detection signal input of side A or B L side A H side B Not used 14 MODEL SELECT I Model...

Page 16: ...pstan reel motor driver IC IC601 45 MOTOR W O Motor control signal output to the capstan reel motor driver IC IC601 W phase 46 MOTOR V O Motor control signal output to the capstan reel motor driver IC IC601 V phase 47 MOTOR U O Motor control signal output to the capstan reel motor driver IC IC601 U phase 48 SURROUND CTL O Surround circuit control signal output terminal Not used open www xiaoyu163 ...

Page 17: ...supplied 4 4 4 4 5 6 3 2 8 1 1 3 221 642 11 LID BATTERY CASE BLUE 1 3 221 642 21 LID BATTERY CASE PINK 1 3 221 642 31 LID BATTERY CASE SILVER 2 A 3052 259 A ORNAMENT OPEN BLOCK ASSY 3 3 029 220 11 SPRING TENSION 4 4 218 229 25 SCREW 1 4 MI PINK SILVER 4 4 218 229 27 SCREW 1 4 MI BLUE 5 4 218 229 09 SCREW 1 4 MI PINK SILVER 5 4 218 229 11 SCREW 1 4 MI BLUE 6 X 3379 836 1 CASE SUB ASSY L BLUE 6 X 33...

Page 18: ... 963 883 51 SCREW M1 4 PRECISION PAN 60 3 221 643 51 COVER MD 61 3 365 630 41 SCREW M1 4 62 X 3379 431 1 BRACKET CASSETTE 910 ASSY 63 3 038 054 01 LEVER B M LOCK 64 3 704 197 01 SCREW M1 4 SPECIAL HEAD 65 3 029 213 01 TERMINAL BOARD BATTERY 66 3 345 648 71 SCREW M1 4 TOOTHED LOCK 67 X 3377 726 1 TERMINAL BOARD ASSY M 68 3 031 460 01 SHEET BT S704 1 762 553 11 SWITCH LEAF www xiaoyu163 com QQ376315...

Page 19: ...S ASSY FA 121 3 010 274 02 TABLE REEL 122 3 010 954 01 SPRING BT COMPRESSION 123 3 029 282 01 GEAR Y 124 3 029 285 01 GEAR CAM 125 3 029 284 01 LEVER TRIGGER 126 3 029 281 01 GEAR IDLER B 127 3 010 273 02 GEAR REEL 128 3 029 273 01 GEAR FR 129 3 029 283 01 GEAR IDLER A 130 3 029 286 01 GEAR NR 131 3 029 288 01 PULLEY REVERSE 132 3 046 789 01 SPRING HDA 133 3 038 610 01 LEVER HEAD 134 3 033 757 01 ...

Page 20: ... 1uF 10V C603 1 115 156 11 CERAMIC CHIP 1uF 10V C604 1 115 156 11 CERAMIC CHIP 1uF 10V C605 1 117 863 11 CERAMIC CHIP 0 47uF 10 6 3V C606 1 119 923 81 CERAMIC CHIP 0 047uF 10 10V C607 1 119 923 81 CERAMIC CHIP 0 047uF 10 10V C608 1 119 663 11 TANTALUM CHIP 47uF 20 2 5V C609 1 107 819 11 CERAMIC CHIP 0 022uF 10 16V C610 1 127 671 91 CERAMIC CHIP 10000PF 5 50V C611 1 164 937 11 CERAMIC CHIP 0 001uF ...

Page 21: ...6W R209 1 244 161 81 RES CHIP 2 2 5 1 16W R211 1 218 959 11 RES CHIP 3 3K 5 1 16W R212 1 218 971 11 RES CHIP 33K 5 1 16W R213 1 218 955 11 RES CHIP 1 5K 5 1 16W R214 1 218 989 11 RES CHIP 1M 5 1 16W R216 1 218 973 11 RES CHIP 47K 5 1 16W R217 1 218 943 11 RES CHIP 150 5 1 16W R301 1 218 981 11 RES CHIP 220K 5 1 16W R302 1 218 955 11 RES CHIP 1 5K 5 1 16W R303 1 218 985 11 RES CHIP 470K 5 1 16W R30...

Page 22: ... 1 771 816 21 SWITCH LEVER SLIDE REW FF PUSH Y x VIBRATOR X701 1 579 258 11 VIBRATOR CRYSTAL 32 768kHz MISCELLANEOUS HP901 1 500 623 11 HEAD MAGNETIC PLAYBACK M601 1 763 559 11 MOTOR DC CAPSTAN REEL WITH PULLEY PM701 1 454 674 31 SOLENOID PLUNGER S704 1 762 553 11 SWITCH LEAF ACCESSORIES PACKING MATERIALS 1 528 543 22 BATTERY NI CD NC 6WM 0 1 528 661 15 BATTERY CHARGER BC 7DR Korean 0 1 528 822 13...

Page 23: ...ed in Japan C 2000 10 Published by General Engineering Dept www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

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