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WM-EX190/EX192

US Model

Canadian Model

WM-EX190

AEP Model

E Model

Chinese Model

WM-EX190/192

SERVICE MANUAL

CASSETTE PLAYER

MICROFILM

SPECIFICATIONS

Model Name Using Similar Mechanism NEW

Tape Transport Mechanism Type MT-WMEX192-114

• Power requirements

3V DC batteries R6 (AA) 

×

 2

• Dimensions

82 

×

 111.5 

×

 34.5 mm

(w / h/ d) incl. projecting parts and controls

• Mass

 Approx. 115 g / Approx. 190 g incl.

batteries and a cassette

• Supplied accessories

Stereo headphones or Stereo earphones (1) / Belt clip (1)

Design and specifications are subject to change without notice.

Photo : WM-EX192

Ver 1.0  2000. 01

Summary of Contents for Walkman WM-EX192

Page 1: ...EW Tape Transport Mechanism Type MT WMEX192 114 Power requirements 3V DC batteries R6 AA 2 Dimensions 82 111 5 34 5 mm w h d incl projecting parts and controls Mass Approx 115 g Approx 190 g incl batteries and a cassette Supplied accessories Stereo headphones or Stereo earphones 1 Belt clip 1 Design and specifications are subject to change without notice Photo WM EX192 Ver 1 0 2000 01 ...

Page 2: ...t the minus side of a tantalum capacitor may be damaged by heat SECTION 1 GENERAL 1 GENERAL 2 2 DISASSEMBLY 2 1 Cabinet REAR 3 2 2 Main Board 4 2 3 Lid Cassette 4 2 4 Mechanism Deck 5 2 5 BELT MOTOR PINCH LEVER HEAD MAGNETIC 5 3 MECHANICAL ADJUSTMENT 6 4 ELECTRICAL ADJUSTMENT 6 5 DIAGRAMS 5 1 Block Diagram 7 5 2 Printed Wiring Board 9 5 3 Schematic Diagram 11 5 4 IC Block Diagram 13 6 EXPLODED VIE...

Page 3: ...CABINET REAR This set can be disassembled in the order shown below Cabinet rear Set Main board Lid assy cassette Mechanism deck Belt Motor Pinch lever N assy Head magnetic A 1 Two screws B1 7 9 2 Open the lid cassette 3 Cabinet rear There 16 claws of A to P are caught B K M L C N O P D E F G H I J ...

Page 4: ...2 2 MAIN BOARD 2 3 LID ASSY CASSETTE 1 Remove the solders 2 Screw M1 4 Claw 3 MAIN board There is a claw 2 Spring torsion 5 Lid assy cassette 1 Open the lid cassette 3 Release the catch 4 Release the catch ...

Page 5: ...MAGNETIC 1 Remove the mechanism deck in the direction of the arrow There two claws Two claws 2 Two screws M1 4 5 Two screws M1 4 3 Motor reel capstan 6 Head magnetic playback 4 Pnch lever N assy 1 Belt Motor reel capstan Wheel assy sp capstan Belt threading Belt ...

Page 6: ...nt Procedure 1 PlaybackWS 48A tape center part in the REV state and adjust RV601 so that the frequency counter reading becomes 3 000 Hz Specification Value 2 Playback WS 48A tape counter part in the FWD state Check that frequency counter reading is within 1 5 of reading of step 1 Adjustment Location Digital frequency counter 2 985 to 3 015 Hz Type WS 48A Signal 3 kHz 0 dB Used for tape speed adjus...

Page 7: ...ORM MEGA BASS OFF EX192 EX190 S503 S305 1 S305 2 NORM LIMIT 18 V REF FWD REV OSC 43 1 47 B HP901 PLAYBACK HEAD IN 35 TH601 RV601 TAPE SPEED OPERATION DET CURRENT DET PULSE DET OPERATION LOGIC PRE DRIVE 39 40 41 2 44 45 46 V U W M901 REEL CAPSTAN MOTOR i J301 21 POWER MUTE 19 VCC 3 S S Q301 10K 47K TAPE POWER S301 BATTERY DRY 3 0V D150 POWER B AVLS Signal path E PB ...

Page 8: ... C605 C606 R606 TP1 TP9 TP15 TP10 TP11 TP2 TH601 C335 R327 D302 C342 C321 C333 C325 C105 C205 R103 R205 C203 C107 C108 C208 R203 R204 R150 R206 R106 R105 R609 C608 C603 C602 C601 R601 JR13 JR38 JR5 JR6 C201 C604 R605 C103 R104 R108 R208 R110 R210 C207 TP5 TP7 16 TP8 TP6 1 12 13 24 25 36 37 48 R L HP901 PLAYBACK HEAD M901 REEL CAPSTAN MOTOR DRY BATTERY SIZE AA IEC DESIGNATION R6 2PCS 3V COM W V U J...

Page 9: ... Power voltage is dc V and fed with regulated dc power supply from external power voltage jack Voltages and waveforms are dc with respect to ground under no signal detuned conditions no mark STOP PLAY Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path E PB Abbreviation CND Canadian model FR French model EA Saudi Arabi...

Page 10: ... FWD REW POWER OUT1 POWER GND MVCC DR WOUT MP GND VOUT UOUT FC OUT OSC UB VB WB 3 4 5 6 7 8 9 10 11 12 PRE NF1 PRE OUT2 PRE NF2 PRE FWD IN2 PRE REV IN2 PRE REV IN1 PRE FWD IN1 S S PRE GND PRE OUT1 BIAS R F REF SYS CONT DET VREF SPEED LOW BOOST PRE DRIVER OPERATION LOGIC OSC PLUSE DET REF VOLTAGE REF VOLTAGE FOR SPEED CONTROL CURRENT DET OPERATION DET FWD REV FREQ CARC 1 2 3 5 4 7 8 9 6 mechanism n...

Page 11: ...D COMPLETE EX190 FR 52 A 3021 304 A MAIN BOARD COMPLETE EX190 US CND AEP 52 A 3021 305 A MAIN BOARD COMPLETE EX190 E 52 A 3021 306 A MAIN BOARD COMPLETE EX192 AEP E EA 52 A 3021 307 A MAIN BOARD COMPLETE EX192 FR 53 3 040 912 01 TERMINAL BATTERY 54 3 019 944 01 BUTTON STOP 55 3 019 943 01 BUTTON REW 56 3 019 941 01 BUTTON PLAY 57 3 019 942 01 BUTTON FF 58 3 040 913 01 TERMINAL BATTERY ...

Page 12: ...06 102 101 M901 HP901 101 3 013 560 11 BELT 102 3 703 816 07 SCREW M1 4 SPECIAL HEAD 103 3 019 776 01 GEER REEL S 104 3 703 816 73 SCREW M1 4 SPECIAL HEAD 105 X 3369 749 1 PINCH LEVER N ASSY 106 3 920 996 01 SPRING PINCH N M901 1 763 073 11 MOTOR REEL CAPSTAN WITH PULLY HP901 1 500 640 11 HEAD MAGNETIC PLAYBACK ...

Page 13: ...UTCH ASSY S 156 3 022 093 01 SPRING FR S 157 3 022 094 01 SPRING STOP S 158 3 019 777 03 LEVER OWS DETECTION 159 3 728 091 01 WASHER STOPPER 160 3 019 778 01 SLEEVE MS 161 3 921 335 03 WASHER LEVER 162 3 920 990 02 SPRING UD COMPRESSION 163 3 019 774 01 GEAR BS 164 X 3372 558 1 WHEEL ASSY SP CAPSTAN 165 3 019 775 01 GEAR DS 166 3 036 664 01 SPRING FR LEVER OWN Ref No Part No Description Remarks Re...

Page 14: ...20 00 6 3V C324 1 115 156 11 CERAMIC CHIP 1uF 10V C325 1 126 153 11 ELECT 22uF 20 6 3V C327 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C332 1 115 156 11 CERAMIC CHIP 1uF 10V C333 1 126 162 11 ELECT 3 3uF 20 50V C334 1 110 563 11 CERAMIC CHIP 0 068uF 10 00 16V C335 1 164 156 11 CERAMIC CHIP 0 1uF 25V C336 1 115 467 11 CERAMIC CHIP 0 22uF 10 00 10V EX190 C337 1 115 467 11 CERAMIC CHIP 0 22uF 10 00 10V...

Page 15: ... CHIP 10 5 1 8W EX190 US CND AEP R207 1 216 154 91 RES CHIP 15 5 1 8W EX190 E EX192 AEP E EA R207 1 216 174 00 RES CHIP 100 5 1 8W EX192 FR R208 1 216 829 11 RES CHIP 4 7K 5 1 16W R209 1 216 154 91 RES CHIP 15 5 1 8W EX190 FR R209 1 216 296 91 SHORT EXECEPT EX190 FR R210 1 216 813 11 RES CHIP 220 5 1 16W EX190 E EX192 AEP E EA R210 1 216 821 11 RES CHIP 1K 5 1 16W EX192 FR R210 1 216 817 11 RES CH...

Page 16: ... 20 WM EX190 EX192 9 927 642 11 Sony Corporation Personal Audio Division Company 2000A1678 1 Printed in Japan 2000 1 Published by General Engineering Dept ...

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