Sony TA-SA300WR Service Manual ▷ View online
SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
TA-SA300WR
SPECIFICATIONS
9-893-123-08
2014D33-1
©
2014.04
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
PX Model
Ver. 1.7 2014.04
Amplifier Section
U.S.model:
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(FTC) With
U.S.model:
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(FTC) With
3
ohms
loads,
both
channels driven, from 180
- 20,000 Hz; rated 45 watts
per channel minimum
RMS power, with no more
than 1% total harmonic
distortion from 250 milli
watts to rated output.
- 20,000 Hz; rated 45 watts
per channel minimum
RMS power, with no more
than 1% total harmonic
distortion from 250 milli
watts to rated output.
Other models:
POWER OUTPUT (reference)
Surround L/Surround R
POWER OUTPUT (reference)
Surround L/Surround R
167 W (per channel at 3 ohms,
1 kHz) (for TA-SA300WR of
BDV-E series: except US model)
125 W (per channel at 3 ohms,
1 kHz) (for TA-SA300WR of
BDV-N790W series: except US
and Chinese models)
100 W (per channel at 3 ohms,
1 kHz) (for TA-SA300WR of
BDV-N7100W series: except
US and Chinese models)
75 W (per channel at 3 ohms,
1 kHz) (for TA-SA300WR of
BDV-N790W series: Chinese
model)
35 W (per channel at 8 ohms,
1 kHz) (for TA-SA300WR of
BDV-N7100W series: Chinese
model)
1 kHz) (for TA-SA300WR of
BDV-N790W series: except US
and Chinese models)
100 W (per channel at 3 ohms,
1 kHz) (for TA-SA300WR of
BDV-N7100W series: except
US and Chinese models)
75 W (per channel at 3 ohms,
1 kHz) (for TA-SA300WR of
BDV-N790W series: Chinese
model)
35 W (per channel at 8 ohms,
1 kHz) (for TA-SA300WR of
BDV-N7100W series: Chinese
model)
Rated impedance:
3 - 16
:
Power consumption
On: 50 W
Standby power consumption
0.5 W (standby mode)
(for TA-SA300WR of BDV-E
(for TA-SA300WR of BDV-E
series: US and Canadian models)/
0.18 W (turned off)
(for TA-SA300WR of BDV-N
0.2 W (turned off)
0.13 W (turned off)
series: Other models)
series)
Dimensions (approx.)
206 mm × 60 mm × 236
mm (8
mm (8
1
/
8
in × 2
3
/
8
in ×
9
3
/
8
in) (w/h/d) with the
wireless transceiver
inserted
inserted
Mass (approx.)
1.3 kg (2 lb 14 oz)
Design and specifications are subject to change
without notice.
without notice.
Standby power consumption 0.13W (for TA-SA300WR
of BDV-E series: US, Canadian models), 0.18W (for
TA-SA300WR of BDV-E series: Other models), 0.2W
(for TA-SA300WR of BDV-N series)
Over 85% power efficiency of amplifier block is
of BDV-E series: US, Canadian models), 0.18W (for
TA-SA300WR of BDV-E series: Other models), 0.2W
(for TA-SA300WR of BDV-N series)
Over 85% power efficiency of amplifier block is
achieved with the full digital amplifier, S-Master.
50/60 Hz
220 V - 240 V AC,
120 V AC, 50/60 Hz
Taiwan model:
120 V AC, 60 Hz
US and Canadian models:
General
Other models:
50/60 Hz
110 V - 240 V AC,
Latin American and
PX models:
PX models:
Power requirements
Power output (EZW-RT20 slot) (for TA-SA300WR of
BDV-N7100W series: Chinese model)
BDV-N7100W series: Chinese model)
DC 3.3 V, MAX 300 mA
• TA-SA300WR is the surround amplifi er section in BDV-E780W/E980W/E985W/N790W/
N890W/N990W/N995W/N7100W/N8100W/N9100W/N9150W/T79.
• Wireless transceivers (EZW-RT50 (except Chinese model) or EZW-RT20 (Chinese model))
and main unit* are necessary to check wireless connection.
* HBD-E780W, HBD-E980W, HBD-E985W, HBD-N790W, HBD-N890W, HBD-N990W,
HBD-N995W, HBD-N7100W, HBD-N8100W, HBD-N9100W, HBD-N9150W, HBD-T79 etc.
SURROUND AMPLIFIER
TA-SA300WR
2
1.
SERVICING NOTES
............................................. 3
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 6
2-2. Front Panel Block, Bottom Panel (L)/(R) ....................... 6
2-3. Case (WLK4), Fuse (F900) ............................................ 7
2-4. WLK4-TERM
2-3. Case (WLK4), Fuse (F900) ............................................ 7
2-4. WLK4-TERM
Board
...................................................... 7
2-5. WLK4 MAIN Board ....................................................... 8
2-6. POWER
2-6. POWER
Board
................................................................ 8
3.
TEST MODE
............................................................
9
4. DIAGRAMS
4-1. Block
Diagram
................................................................ 10
4-2. Schematic Diagram - WLK4 MAIN Board (1/2) - ......... 12
4-3. Schematic Diagram - WLK4 MAIN Board (2/2) - ......... 13
4-4. Printed Wiring Board - WLK4 MAIN Board - ............... 14
4-5. Printed
4-3. Schematic Diagram - WLK4 MAIN Board (2/2) - ......... 13
4-4. Printed Wiring Board - WLK4 MAIN Board - ............... 14
4-5. Printed
Wiring
Boards
- WLK4-PANEL, WLK4-TERM Boards - ..................... 15
4-6. Schematic
Diagram
- WLK4-PANEL, WLK4-TERM Boards - ..................... 15
4-7. Printed Wiring Board - POWER Board - ........................ 16
4-8. Schematic Diagram - POWER Board - .......................... 17
4-8. Schematic Diagram - POWER Board - .......................... 17
5.
EXPLODED VIEWS
5-1. Panel
Section
................................................................... 21
5-2. Main
Section
................................................................... 22
6.
ELECTRICAL PARTS LIST
.............................. 23
TABLE OF CONTENTS
NOTES ON CHIP COMPONENT REPLACEMENT
•
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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.
After correcting the original service problem, perform the follow-
ing 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 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
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 microamperes.).
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 passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
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 passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
1.5 k
Ω
0.15
μF
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK
0 OR DOTTED LINE
WITH MARK
0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
Ver. 1.4
TA-SA300WR
3
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong
viscosity
Unleaded solder is more viscous (sticky, less prone to fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•
Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
ADVANCE PREPARATION WHEN CONFIRMING OP-
ERATION
When the operation of the TA-SA300WR is confi rmed, it is nec-
essary to communicate the set of main unit, TA-SA300WR and
EZW-RT50.
Confi rm the main unit with wireless connection, TA-SA300WR
and EZW-RT50 are prepared beforehand when you repair.
ERATION
When the operation of the TA-SA300WR is confi rmed, it is nec-
essary to communicate the set of main unit, TA-SA300WR and
EZW-RT50.
Confi rm the main unit with wireless connection, TA-SA300WR
and EZW-RT50 are prepared beforehand when you repair.
CHECK THE STATUS OF LINK/STANDBY INDICATOR
Operation condition can be confi rmed by the LINK/STANDBY
indicator status.
Operation condition can be confi rmed by the LINK/STANDBY
indicator status.
MODEL IDENTIFICATION
L
R
3-16
IMPEDANCE USE
SPEAKERS
SECURE LINK
EZW-RT50
Part No.
– Back Panel –
Model
Part No.
US model
4-208-364-0[]
Canadian model
4-208-364-1[]
AEP, Italian and UK models
4-208-364-2[]
Saudi Arabia, Iranian, Middle East
and Indian models
and Indian models
4-208-364-4[]
Singapore model
4-208-364-5[]
Thai models
4-208-364-6[]
Australian model
4-208-364-7[]
Taiwan model
4-208-364-8[]
Russian model
4-416-303-0[]
Chinese model
4-416-303-1[]
Latin American model
4-416-303-2[]
PX model
4-416-303-3[]
LINK/STANDBY
LINK/STANDBY indicator
– Front view –
Indicator
Status
Turns green.
The system is turned on,
wireless transmission is
activated and surround signals
are being received.
wireless transmission is
activated and surround signals
are being received.
Turns orange.
The system is turned on,
wireless transmission is
activated with the Secure Link
function, and surround signals
are being received.
wireless transmission is
activated with the Secure Link
function, and surround signals
are being received.
Flashes green
quickly.
quickly.
The wireless transceiver is not
inserted correctly into the
wireless transceiver slot.
inserted correctly into the
wireless transceiver slot.
Flashes green
or orange
slowly.
or orange
slowly.
Wireless transmission is
deactivated.
deactivated.
Turns red.
The surround amplifier is in
standby mode while the system
is in standby mode or wireless
transmission is deactivated.
standby mode while the system
is in standby mode or wireless
transmission is deactivated.
Turns off.
The surround amplifier is
turned off.
turned off.
Flashes red.
The surround amplifier’s
protection is active.
protection is active.
Ver. 1.4
TA-SA300WR
4
converter transformer
(T901)
(T901)
heat sink (AMP)
Note 1:
Fit the cable so as not near
the heat sink (AMP) into the
hook of the chassis.
Note 3:
Fix the cable so as not near the
converter transformer (T901).
Note 2:
Fix the cable so as not near
the heat sink (AMP).
CABLE SETTING
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When checking the board, for the electric shock prevention, connect the resistors to both ends of respective capacitors (C935, C936, C941
and C951 on the POWER board) to discharge the capacitors (C935, C936, C941 and C951 on the POWER board).
When checking the board, for the electric shock prevention, connect the resistors to both ends of respective capacitors (C935, C936, C941
and C951 on the POWER board) to discharge the capacitors (C935, C936, C941 and C951 on the POWER board).
– POWER Board (Conductor Side) –
800
:/2 W
C951
C941
800
:/2 W
800
:/2 W
C935 (US, Canadian and Taiwan models)
C936 (Except US, Canadian and Taiwan models)
