HBD-NF7220 - Sony Audio Service Manual (repair manual). Page 5

NOTE  OF  REPLACING  THE  IC3101  AND  IC3102  ON  
THE  AMP  BOARD  AND  THE  COMPLETE  AMP  BOARD
When IC3101 and IC3102 on the AMP board and the complete 
AMP board is replaced, it is necessary to spread the compound 
between parts and heat sink.

Part No.   

Description

J-2501-221-A 

THERMAL COMPOUND (G747)

Spread the compound referring to the fi gure below.

AEP

4-486-010-0[]

NOTE  OF  REPLACING  THE  IC101,  IC202,  IC305, 
IC901,  IC1001  AND  IC2001  ON  THE  MB1305  BOARD
IC101, IC202, IC305, IC901, IC1001 and IC2001 on the MB1305 
board cannot exchange with single. When these parts on the 
MB1305 board are damaged, exchange the entire mounted board.

NOTE  OF  REPLACING  THE  IC2001  ON  THE  AUDIO 
IO  BOARD
IC2001 on the AUDIO IO board cannot exchange with single. 
When this part on the AUDIO IO board is damaged, exchange the 
entire mounted board.

NOTE  OF  REPLACING  THE  IC2951  ON  THE   TOUCH_S  
BOARD
IC2951 on the TOUCH_S board cannot exchange with single. 
When this part on the TOUCH_S board is damaged, exchange the 
entire mounted board.

NOTE  OF  DELETING  THE  PRODUCT  REGISTRATION 
ON  SEN  (INTERNET  VIDEO)
It is needed to delete the product registration on SEN (Internet 
Video) by checking the “Device ID” which have 12 digits hexa-
decimal number. The procedure of checking “Device ID” can be 
followed as below :
 

1.  Press [HOME] key of the remote commander, the message 

“HOME” appears on main unit.

 2. 

Press [<] key of the remote commander and select “Setup”.

 3. 

 

Press 

[M]/[m] key of the remote commander, select “System 

Settings” and press [ ] key.

 4. 

 

Press 

[M]/[m] key of the remote commander, select “System 

Information” and press [ ] key.

 

5. Device ID will shown on the display.

 

   Device ID : XX:XX:XX:XX:XX:XX  (12 digits hexadecimal 

number).

If it is needed to delete the customer’s registration, please contact 
the Service Headquarter with Device ID information.

NOTE  OF  REPLACING  THE  IC102,  IC103  AND  IC202 
ON  THE  MB1305  BOARD
Replacement of IC102, IC103 and IC202 on the MB1305 board 
used in this unit requires a special tools.