SRS-X77 - Sony Audio Service Manual (repair manual). Page 3

DESTINATION  ABBREVIATIONS
The following abbreviations for model destinations are used in this 
service manual.

• Abbreviations
 AUS : 

Australian 

model

 CH  : 

Chinese 

model

 CND : 

Canadian 

model

 KR  : 

Korean 

model

 RU  : 

Russian 

model

  SP6  : Middle East, African, Singapore, Malaysia and Philippines 

models

 TH  : 

Thai 

model

NOTE  OF  REPAIRING  THE  BOARDS
When boards installed in this unit are defective, it is replaced by 
the board. Replace the complete mounted board or the whole parts 
including the complete mounted board.

NOTE  OF  REPLACING  THE  COMPLETE  NETWORK  
BOARD  AND  CARD  WLAN/BT  COMBO
When needing to replace the complete NETWORK board or card 
WLAN/BT combo, be sure to carry out the following contents.

1.  Be sure to replace the complete NETWORK board and card 

WLAN/BT combo simultaneously.

2.  When replacing the complete NETWORK board and card 

WLAN/BT combo, peel the device ID label stuck on the bot-
tom side of the unit, and stick on the device ID label enclosed 
with the new part (Refer to the fi gure below).

1 Peel the device

2 Stick on the new 

Device ID:  XXXXXXXXXXXX
MAC1 :XX-XX-XX-XX-XX-XX
MAC2 :XX-XX-XX-XX-XX-XX

3.  When replacing the complete NETWORK board and card 

WLAN/BT combo, refer to “CHECKING OF NETWORK 
CONNECTION”.

4.  When replacing the complete NETWORK board and card 

WLAN/BT combo, the MAC address and DTCP-IP ID have 
been changed.

 

Print the page 5 and page 7, cut it, and hand over it to the cus-
tomer with the unit, when returning the unit that the repair is 
completed to the customer.

CHECKING  OF  NETWORK  CONNECTION
When replacing the following parts, be sure to carry out the net-
work connection check (wired/wireless).

Target parts:
• 

Complete NETWORK board and Card WLAN/BT combo 

 

Note: Be sure to replace the two parts simultaneously.

• 

Complete MAIN board

•  Antenna assy (Ref. No. ANT1) (wireless LAN connection 

check only)

Necessary Equipment:
• 

Access point supporting WPS

Procedure:
1.  Check that network LAN cable is not connected to the unit.
2.  Slide the [NETWORK OFF/ON] switch in the direction of 

“ON”.

3. Press 

the 

[?/1] button to turn the power on, and the [LINK] 

indicator blinks in orange.

4.  Check that the [LINK] indicator lights off.
5.  Press and hold the [WPS] button for about 2 seconds until beep 

sound occurs, and the [LINK] indicator blinks in orange.

6.  Press the [WPS] button on the access point.
7.  Wireless LAN connection is completed, and the [LINK] indi-

cator lights up in orange.

Note: Refer to “Operating Instructions” or “Wi-Fi Startup Guide” of this 

unit’s accessories for details.

Necessary Equipment:
• Router
• 

Network LAN cable

Procedure:
1.  Connect the unit to the router with the network LAN cable.
2.  Slide the [NETWORK OFF/ON] switch in the direction of 

“ON”.

3. Press 

the 

[?/1] button to turn the power on, and the [LINK] 

indicator blinks in pink.

4.  Wired LAN connection is completed, and the [LINK] indicator 

lights up in pink.

Note: Refer to “Help Guide” of this unit for details.