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2014D33-1

© 

2014.04

Amplifier Section
POWER OUTPUT (reference)
Surround L/Surround R: 

100 W (per channel at 3 ohms, 1 kHz)
(Except Chinese model)

35 W (per channel at 8 ohms, 1 kHz)

(Chinese model)

Rated impedance: 

3   – 16 

Power requirements

Power consumption

On: 50 W

Standby power consumption

0.5 W (standby mode)
0.2 W (turned off)

Dimensions (w/h/d) (approx.)

206 mm × 60 mm × 236 mm with the 
wireless transceiver inserted

Mass (approx.)

1.3 kg

Design and specifications are subject to 
change without notice.

s Standby power consumption: 0.2W 
s Over 85% power efficiency of amplifier 

block is achieved with the full digital 
amplifier, S-Master.

Power output (EZW-RT20 slot)

(Chinese model)

DC 3.3 V, MAX 300 mA

Taiwan model:

120 V AC, 50/60 Hz

Other models:

220 V – 240 V AC, 50/60 Hz

110 – 240V AC area in E and Mexican models:

110 V – 240 V AC, 50/60 Hz

•  TA-SA400WR is the surround amplifi er section in BDV-N7100WL/N9100WL/N9150WL/N9900SH.
•  Wireless transceivers (EZW-RT50 (except Chinese model) or EZW-RT20 (Chinese model)) and 

main unit* are necessary to check wireless connection.

  * HBD-N7100WL, HBD-N9100WL, HBD-N9150WL, HBD-N9900SH etc.

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.

0  OR  DOTTED  LINE  

0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  

 .............................................  

2

2-1. Disassembly 

Flow 

...........................................................   5

2-2.  Front Panel Block, Bottom Panel (L)/(R) .......................   5
2-3.  Case (WLK), Fuse (F900) ..............................................   6
2-4. WLK4-TERM 

Board 

......................................................   6

2-5. WLK5_MAIN 

Board 

......................................................   7

2-6. POWER 

Board 

................................................................   7

 ............................................................  

7

4-1. Block 

Diagram 

................................................................   8

4-2.  Printed Wiring Board - WLK5_MAIN Board - ..............   10
4-3.  Schematic Diagram - WLK5_MAIN Board - .................   11
4-4.  Printed Wiring Board - POWER Board - ........................   12
4-5.  Schematic Diagram - POWER Board - ..........................   13
4-6. Printed 

Wiring 

Boards 

- WLK4-PANEL/WLK4-TERM Boards - ......................   14

4-7. Schematic 

Diagram 

- WLK4-PANEL/WLK4-TERM Boards - ......................   14

5-1. Panel 

Section 

...................................................................  20

5-2. Main 

Section 

...................................................................  21

 ..............................   22

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 

the lead free mark due to their particular size)

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 °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.

• 

Usable with ordinary solder

 

It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.

ADVANCE  PREPARATION  WHEN  CONFIRMING  OP-
ERATION
When the operation of the TA-SA400WR is confi rmed, it is nec-
essary to communicate the set of main unit, TA-SA400WR and 
EZW-RT50.
Confi rm the main unit with wireless connection, TA-SA400WR 
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.

Turns green.

The system is turned on, 
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.

Flashes green or 
orange slowly.

Wireless transmission is 
deactivated.

Turns red.

The surround amplifier is 
in standby mode while 
the system is in standby 
mode or wireless 
transmission is 
deactivated.

Turns off.

The surround amplifier is 
turned off.

Flashes green 
quickly.

The wireless transceiver 
is not inserted correctly 
into the wireless 
transceiver slot.

Flashes red.

The surround amplifier’s 
protection is active.

AEP and UK models

4-448-711-0[]

Mexican model

4-448-711-1[]

Saudi Arabia and Middle East models

4-448-711-4[]

Chinese model

4-448-711-5[]

Singapore model

4-448-711-6[]

Australian model

4-448-711-7[]

Thai model

4-448-711-8[]

Taiwan model

4-448-711-9[]

Russian model

4-455-839-0[]

110 

− 240V AC area in E model

4-455-839-1[]

CAPACITOR  ELECTRICAL  DISCHARGE  PROCESSING
When checking the board, for the electric shock prevention, con-
nect 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).

:/2 W

:/2 W

:/2 W

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).