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SA-VE502/VE505/ WMS5/SS-MS5
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
The SA-VE502 system consists of one unit |
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of SA-WMS5 and two units of SS-MS5. |
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The SA-VE505 system consists of one unit |
Photo: SA-WMS5 |
Photo: SS-MS5 |
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of SA-WMS5 and five units of SS-MS5. |
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SPECIFICATIONS
MICRO SATELLITE SYSTEM
MICROFILM
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers.). Leakage current can be measured by any one of three methods.
1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments.
2.A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.
3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
0.15 F |
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1.5 kΩ |
AC |
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voltmeter |
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(0.75 V) |
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Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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 PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
– 2 –
SECTION 1
GENERAL
• Location of Controls
SA-WMS5
– Front view –
– Rear view –
LINE IN/OUT jack
SPEAKER IN/OUT terminal
POWER SAVE switch
SECTION 2
DIAGRAMS
2-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•X : parts extracted from the component side.
•b: Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)
•Indication of transistor.
Q
B C E
These are omitted.
•Circuit Boards Location
–SA-WMS5 –
POWER SWITCH board
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
•All resistors are in Ω and 1/4 W or less unless otherwise specified.
•2: nonflammable resistor.
•C : panel designation.
Note: |
Note: |
The components identi- |
Les composants identifiés par |
fied by mark !or dotted |
une marque !sont critiques |
line with mark !are criti- |
pour la sécurité. |
cal for safety. |
Ne les remplacer que par une |
Replace only with part |
piéce portant le numéro |
number specified. |
spécifié. |
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•U : B+ Line.
•V : B– Line.
•Voltages are dc with respect to ground under no-signal conditions.
no mark : AUDIO
•Voltages are taken with a VOM (input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.
•Signal path.
F : AUDIO
•Abbreviation
CND : Canadian
POWER board
LED board
MAIN board
CONTROL board
AUTO POWER board
– 3 – |
– 4 – |
SA-VE502/VE505/WMS5/SS-MS5
2-2. PRINTED WIRING BOARDS •See page 4 for Circuit Boards Location.
(Page 6)
(Page 5)
(Page 7)
(Page 7)
(Page 8)
(Page 7)
– 5 – |
– 6 – |
• Semiconductor
Location
– MAIN Board –
Ref. No. |
Location |
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D101 |
B-9 |
D102 |
C-9 |
D103 |
B-10 |
D104 |
B-9 |
D105 |
C-9 |
D106 |
C-9 |
D107 |
D-10 |
D108 |
C-10 |
D303 |
B-7 |
D304 |
B-5 |
D501 |
D-4 |
D503 |
B-4 |
D504 |
A-4 |
IC101 |
C-10 |
IC102 |
D-10 |
IC301 |
A-9 |
IC302 |
C-8 |
IC303 |
A-6 |
IC501 |
A-5 |
IC502 |
A-5 |
(Page 6)
• Semiconductor
Location
– AUTO POWER Board –
Ref. No. |
Location |
(Page 5) |
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D601 |
B-2 |
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D602 |
B-2 |
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D603 |
B-3 |
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D604 |
B-3 |
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D605 |
B-2 |
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D606 |
D-3 |
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IC601 |
C-2 |
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IC602 |
C-2 |
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Q601 |
B-1 |
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Q602 |
D-3 |
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Q603 |
C-2 |
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Q604 |
D-2 |
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Q605 |
D-2 |
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(Page 5)
(Page 8)
SA-VE502/VE505/WMS5/SS-MS5
(Page 5)
(Page 7)
– 7 – |
– 8 – |
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