Sony wm gx 50 service manual

Page 1

WM-GX5U/GX5I

SERVICE MANUAL

E Model

WM-GXSO WM-GX51
Model Name Using Similar Mechanism WM-BF608
Tape Transport Mechanism Type MF-WMBF608
SPECIFICATIONS
WM-GXSO
Radlo section Accessories suppiied
Frequency range Siereo headphones (l)
Stereo microphone (I)
Where purchased FM (MHz) AM (kHz) Microphone siand (1)
m Italy 87.5A108 5265-16065 Carrying case (1)
In Germany 816-407 am -1502 Design and specilicalions supieci Io change wuhoui noose,
In Saudi-Arabia era-m 530 --1605 No,
In other counlries 876-1079 531 -1502 Thls appliance coniorms wim EEC Direcuve mace/sec regarding
inierievenco suppression,

Intermediate lraquancy FM: 28.6 MHz l50 kHl
AM: 55 kHz
Power requirements 15 V DC
One as (size M) ballery
Rechargeable battery (NC-GWM) (not supplied)
DO IN 15 v jack accepts
Sony Ac-EisL Ac power adapior
(nm supplied) (or use on:

European and Saudi~Alabla model 220 V AC. 50 Hz

l20 V AC, 60 HZ
220 V AC 50 HI

Olhsr model

Ballery iiie (Apprmimale hours)

Piaypack Radio racppiion 3:93:33 'V'zgio
Sony AM3 (N) 5 hrs 7 ms 2 hrs

Dimensions
Approx. 108.6 x 78.5 x 35.2 Inm(w/h/d)
(4% x 3% x 1%. inches)
Incl. proisoiing pans and connois
Weight
Approx. 223 g (7.9 01) not incl. battery and other aocessories

Opuonal acoessorles' AC power adaptor AC-E15L
Car baiiaiy cord DCCEHSL
Rechargeable binary NC~6WM
Ballaly charger eon

Vour dealer may no! handle these opllonal accessories. Please ask
the dealer Ior detailed inlormarion,

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RADIO CASSETTE BORDER
- ONY;

Page 2

WM-GX50/GX51

WM»GX51 TABLE OF CONTENTS
Radio union
Frequency range
where purchased FM (MI-11) AM (lit-t2) , i
In Italy 575.108 522-I6l! m 392 P-agg
in Germany 575-108 sat-i602
In Saud'pArabia 875-108 sat-1502 1- GENERAL
In other countries 815-108 531-1602 Parts Identification Nomenclature (WMGXBO)
Intermediate trequency Parts Identification Nomenclature (WM-6X51)
mi: T517534? . Service Notes ............................................................... 5
Antenna
FM: Headphones cord antenna
AM: Built-in territe bar antenna 2. DISASSEMBLY
Recording section 2-lr Cabinet (Rear) Assy Removal ----------------------------- 6
unifiggkflzz'nml m 22' Flexible Board Removal --------------
Inpuk h I II M 2-3. Tuner Board Removal (WM-GX50)-
icrop one nput stereo "In at:
(PLUG IN POWER) nnslllvlly 0,77 mV (-60 dB) (or lower Tuner Board Removal (WM-GX51)'
Impedance microphone
Tape player caution and gchani
Frequency response (DOLBY NR on) 3 (ADJUSTMENTS
40 Hz-15 kHz (with the PB EO seteotor eat to NORMAL or 5-1. Mechanical Measurements ---------------------- - ----------- 8
OupiIOdMETAL) 3-2, Electrical Adjustments ----------------------------------------- 8
Headphones (stereo minijack)
Load Impedance 3-3000
Power output _ 4. DIAGRAMS
Mfrmufieifl 3' Dc mum 16 4-1: Block Diagram (Audio Section) ------------------------- 15
1.5VDc Block Diagram (Tuner Section WM-GXEO) ~

Rechargeable battery

One Ha (size AA) battery Block Diagram (Tuner Section WMGXSl)
DC IN 15 v jack accepts: . i . . .
. Sony AC-EISL Ac power adaptor (not supplied) 4-2. Printed Wiring Boards (Audio Section)
available In the United Kingdom tor use on 240 v AC, 43 Schematic Diagram (Audio Section) ................... 25
so Hz '
available in other Europaan counlries tor use on 220 v 44. Schematic Diagram (Tuner Section WM-GXEI) 30
A0. 50 Hz , , .
available in other countries tor use an too-tzo v ac or 4-5. Printed WIIII'Ig Boards
220-240 v ac, so or so Hz ~ . ................................
- Sony Doc-EitsL (not supplied) tar nae with i2 v car (Tuner seam WM GX51) 33
benefit 4-6. Printed Wiring Boards
53 '3 ("W) (Tuner Section WMvGXSO) «r
Battety Playback 2:30" afgzflcg'ggio 4-7, Schematic Diagram (Tuner Section WM-GXEO) 37
Sony AM3 (N) Approx 5 Approx, 7 Approx. 2
For maximum pertormance we recommend the use at elkaIine 5. EXPLODED VIEWS
mm 54' Cabinet SectIon-I ............................................... 39
Dimensions _ i ,
Approx i083 x 785 X 352 mmtw/h/d) 02. Cablnet Section-2 ........................... . ................... 40
(4: X .3"! x "In 'IIcIESI 5-3. Mechanism Sectional (MFWMBFfiOS) ..
rncl. prqacllng parts and controls
Weight 54. Mechanism Section-2 (MF-WMBFGOS) ~-
Approx. 226 9 (no up not incl. battery and other
accessories
mm WW 6 ELECTRICAL PARTS LIST ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 43

Lithium cattery (cnzolsl ti) Microphone (1)
Microphone stand (I) Stereo headphones (i)
Carrying case (0

Design and specifications subject to change without notice

Note
This appliance ccnlermas with EC Directive macs/EEC
regerdtng intarierence supplessloni

Opuonni .cceuorias

Ac power adaptor Ac-ElsL
Battery charger BC~7L
Rechargeable battery Mc-st.
car battery cold DCCAEI15L
Lithium battery cnzois

SAFETYrRELATED COMPONENT WARNINGIl

fiéééfiiéfiiiefifiiiiZZTIZr°LT§eT§$§.'$23JI§SSK"' COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIc DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL To SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.