Read Sony TA-WR1 Service Manual online
SERVICE MANUAL
Sony Corporation
Audio Group
Published by Sony Engineering Corporation
Published by Sony Engineering Corporation
AEP Model
SURROUND AMPLIFIER
9-879-102-01
2004G1678-1
© 2004.07
© 2004.07
Ver 1.0 2004.07
SPECIFICATIONS
TA-WR1
Power requirements
230 V AC, 50/60 Hz
Power consumption
92 W
Power consumption (during standby mode)
2 W
Dimensions (w/h/d) (Approx.)
95
× 156 × 241 mm
(including projecting parts
and control)
and control)
Mass (Approx.)
3.1 kg
Design and specifications are subject to change
without notice.
without notice.
TA-WR1 is the amplifier section in HT-SL900W.
2
TA-WR1
TABLE OF CONTENTS
1.
GENERAL
...................................................................
3
2.
DIAGRAMS
2-1.
Block Diagram ................................................................
6
2-2.
Printed Wiring Board – RX Board – ..............................
7
2-3.
Schematic Diagram – RX Board (1/2) – ........................
8
2-4.
Schematic Diagram – RX Board (2/2) – ........................
9
2-5.
Printed Wiring Boards – MAIN Section – ..................... 10
2-6.
Printed Wiring Boards – POWER SUPPLY Section – ... 11
2-7.
Schematic Diagram – MAIN Section – .......................... 12
3.
EXPLODED VIEWS
................................................. 17
4.
ELECTRICAL PARTS LIST
.................................. 18
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 °C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
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
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
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.
Soldering irons using a temperature regulator should be set to
about 350
Ordinary soldering irons can be used but the iron tip has to be
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
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
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.
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 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.
3
TA-WR1
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
POWER
1
2
3
4
5
ON/STANDBY (indicator)
( indicator)
ON LINE
DIR-R1 jack
SPEAKER jack
POWER
ON/STANDBY
ON LINE
1
2
3
4
5
DIR-R1
SPEAKERS
SURROUND
L
SURROUND
R
IMPEDANCE
USE 6
USE 6
Front Panel
Rear Panel
Surround amplifier
LOCATION OF CONTROLS
4
TA-WR1
SECTION 2
DIAGRAMS
• Circuit Boards Location
STBY board
PSW board
LED board
MAIN board
RX board