SA-W70ES/W505/W705
SPECIFICATIONS
ACTIVE SUPER WOOFER
Photo : SA-W505
US Model
Canadian Model
SA-W505/W705
AEP Model
E Model
SA-W70ES/W505
SERVICE MANUAL
9-960-989-12
2001F0200-1
© 2001.6
Sony Corporation
Home Audio Company
Shinagawa Tec Service Manual Production Group
Ver 1.
1 2001. 06
2
TABLE OF CONTENTS
Specifications ............................................................................ 1
1. GENERAL
Location of Controls ........................................................... 3
2. DIAGRAMS
2-1. Circuit Boards Location ............................................... 4
2-2. Printed Wiring Boards ................................................. 5
2-3. Schematic Diagram ...................................................... 9
3. EXPLODED VIEWS
3-1. Cabinet Section (SA-W70ES/W705) ........................... 13
3-2. Cabinet Section (SA-W505) ........................................ 14
3-3. AMP Section ................................................................ 15
4. ELECTRICAL PARTS LIST ........................................... 16
After correcting the original service problem, perform the follow-
ing saf ety 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 0.5mA (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 0.75V,
so analog meters must have an accurate low-voltage 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 2V AC range are suitable. (See Fig. A)
SAFETY CHECK-OUT
SA-W505 (US, Canadian model)
: 120V AC, 60Hz 130W
SA-W505 (AEP, German, E model)
: 220 230V AC, 50/60Hz 130W
SA-W70ES (AEP, German, E model) : 220 230V AC, 50/60Hz 190W
SA-W705 (US, Canadian model)
: 120V AC, 60Hz 190W
To Exposed Metal
Parts on set
0.15
µF
1.5k
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter ro check AC leakage.
MODEL NO.
SA-W70ES
SA-W505
SA-W705
ACTIVE SUPER WOOFER
MODEL IDENTIFICATION
AFETY-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.
3
SECTION 1
GENERAL
LOCATION OF CONTROLS
4
SECTION 2
DIAGRAMS
AC SW board
LED board
INPUT board
TRANS 1 board
TS board
(W70ES/W705 only)
POWER AMP board
PS board
2-1. CIRCUIT BOARDS LOCATION
