Sony wm 190 service manual

Page 1

Model Name Using Similar Mechanism WM-170
Tape Transport Mechanism Type MT~WM190~45

SPECIFICATIONS

Frequency response (DOLBV' NFI OFF)

Ouréut
Power output
Power requirements

20-Ia000 HZ (wllh the TAPE selector Sal (a NORM or
METAL/C102 lElAJ)
Earphones (slateo mlntiackl load lmoedance 8-3009
4 mW + 4 mW at Dc upetallon lEIAJ. ten)
15 V DC
Rechargeable battery
One H6 (slze AA) battery
DC IN 15 v |ack accepts iUstng battery case);
Sony AC-DIL AC DOWGV adaptor (optional)
svallable tn Japan ior use on IDO V AC 50/60 Hz
available m other countnas for use on 120 V Ac.
60 HZ or 220 V AC, 50 Hz
Sony ESP-5005 battery case (opmnan lor use wrtrr
M0 H20 (sue D) 032181195
Sony DCCv'I'O Car battery cord (optional) for use with
t2 V car battery

Battery lile (El/U) (DOLEY NR OFF)

Battery Tape playback
Rechargeable NC-GWM [fully charged) Approx. 3.5 hours
Sony alkaline battery AMS (N) Approx. 7 hours
Sony battery SUM-3 (NS) Approx 2 hours
Lfiechargeebla NC-GWM + Sorry AM3 (N) Approx to hours

For maximum performance we recommend the use ol alkaline batteries»

Dimensions Approx, 1075 x 713 x 21.9 mm lw/h/dl
not Incl. proiectlng parts and controls
Approx. )9 x 74.4 x 239 mm (win/d)
incl. projecting parts and controls (EIAJ)

Weight Approx. 205 9
incl. rechargeable battery. not Incl. other accessories
Accessories supplied Battery case (1) Sony alkaline battery AMS (N) (I)

Carrying case (1) Battery charger (t)
Rechargeable battery (1)
Stereo earphones loperrair type. 1)
Ac plug aoaptor (1)
Note on stereo earphone:
Put the cord behind your neck,
The knot cannot be moved

Design and spectlicatlons subject to change Without notice.

' Dolby noise reduction manufactured under License lrorn Dolby Laboratories
Licensing Corporation.
DOLBY" and the dOUbIBD symbol m are trademark of Dolby Laboratories
Licens-ng Corporation.

"(EIAD Elecmc Industries moclation or Japan

CASSETTE PLAYER

SONE

Page 2

WM-190

SERVICING NOTES

When you are movement check states of removed the audio
board, press the PLAY (F) button, slide on the $901
(POWER) and 8902 (PLAY) switches.

AUDIO BOARD -Component side-

5902
(PLAY)

$901 (POWER)

Wide mouth clip

Flexible Circuit Board Repairing

OKeep the temperature of the soldering iron around
270C during repairing.

0 Do not touch the soldering iron on the same con-
ductor of the circuit board (Within 3 times).

0 Be careful not to apply force on the conductor when
soldering or unsoldering.

Notes on chip component replacement

I Never reuse a disconnected chip component.

ONotice that the minus side of a tantalum capacitor
may be damaged by heat.