Read Sony SA-VA10 Service Manual online
— 1 —
MICROFILM
SA-VA10
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
SERVICE MANUAL
SPECIFICATIONS
HOME THEATER ACTIVE
SPEAKER SYSTEM
• REAR SPEAKER
— Continued on next page —
• FRONT SPEAKER SYSTEM
— 2 —
TABLE OF CONTENTS
1. GENERAL
....................................................................
4
2. DISASSEMBLY
2-1.
Amplifier Assembly ............................................................. 5
3. DIAGRAMS
3-1.
IC Pin Function
• IC501 System Control (µPD78042FGF-016-3B9) ........... 6
• IC501 System Control (µPD78042FGF-016-3B9) ........... 6
3-2.
Circuit Boards Location ....................................................... 7
3-3.
Schematic Diagram .............................................................. 9
3-4.
Printed Wiring Board .......................................................... 13
3-5.
IC Block Diagrams ............................................................. 17
4. EXPLODED VIEWS
4-1.
Cabinet (L) Assembly ......................................................... 19
4-2.
Cabinet (R) Assembly ........................................................ 20
4-3.
Amplifier Section ............................................................... 21
4-4.
Rear Speaker Section (SS-SR151) ..................................... 22
5. ELECTRICAL PARTS LIST ..................................
23
SERVICE NOTE
[FL ALL LIGHT UP MODE]
While pressing the MASTER VOL+ button, press the POWER
button.
button.
[AUTO POWER SAVE MECHANISM]
A part circuit on this will stop to economize in power if it has no
signal after more than three minutes.
If a sound is input again, the normal circuit will operated.
signal after more than three minutes.
If a sound is input again, the normal circuit will operated.
— 3 —
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety checks 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.
ing safety checks 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
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
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.
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 low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
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.
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.
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.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
Fig. A. Using an AC voltmeter to check AC leakage.
To Exposed Metal
Parts on Set
Parts on Set
0.15
µ
F
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
MODEL IDENTIFICATION
— BACK PANEL —
— BACK PANEL —
Parts No.
4-982-965-0 : US, E1 model
4-982-965-1 : Canadian model
4-982-965-2 : AEP, E2, German model
4-982-965-3 : UK model
4-982-965-4 : Australian model
4-982-965-1 : Canadian model
4-982-965-2 : AEP, E2, German model
4-982-965-3 : UK model
4-982-965-4 : Australian model
• Abbreviation
E1 : Central and South America model
E2 : Singapore, Malaysia model
E2 : Singapore, Malaysia model
— 4 —
SECTION 1
GENERAL
LOCATION OF CONTROLS
Front panel
Remote
1 MUTING button
2 Operate a Sony TV buttons
3 DOLBY SUR button
4 HALL button
5 REAR +/– buttons
6 CENTER +/– buttons
7 BASS +/– buttons
8 BALANCE
2 Operate a Sony TV buttons
3 DOLBY SUR button
4 HALL button
5 REAR +/– buttons
6 CENTER +/– buttons
7 BASS +/– buttons
8 BALANCE
L
/
R
buttons
9 INPUT 1 button
0 INPUT 2 button
!¡ POWER button
!™ GAME button
!£ SUR OFF button
!¢ S. WOOFER +/– buttons
!∞ TEST TONE button
!§ DELAY button
!¶ TREBLE +/– button
!° RESET button
!ª SUPER WOOFER MODE buttons
0 INPUT 2 button
!¡ POWER button
!™ GAME button
!£ SUR OFF button
!¢ S. WOOFER +/– buttons
!∞ TEST TONE button
!§ DELAY button
!¶ TREBLE +/– button
!° RESET button
!ª SUPER WOOFER MODE buttons
(1, 2, OFF)
@º MASTER VOL buttons
1
2
3
4
5
6
7
8
1 STANDBY indicator (red)
2 POWER indicator (red/green)
3 POWER button
4 INPUT button
5 SURROUND button
6 CENTER MODE button
7 S. WOOFER button
8 MASTER VOL buttons
2 POWER indicator (red/green)
3 POWER button
4 INPUT button
5 SURROUND button
6 CENTER MODE button
7 S. WOOFER button
8 MASTER VOL buttons
1
2
3
!£
!™
!¡
4
5
6
7
8
9
0
@º
!¢
!¶
!•
!•
!ª
!§
!∞
This section is extracted from
instruction manual.
instruction manual.
