HBD-NF7220 - Sony Audio Service Manual (repair manual). Page 7

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The password will be supplied to only service HQ, and 
service center name, q’ty and all of software registered 
information should be maintained by service HQ, and 
Audio will ask to report the registration information.

Optical device KEM480AHA/C2RP1 (OP1) for BD requires 
precise read out functions and secure contents protection system 
for more than past DVD/CD.
Therefore, in the case repaired as follows, the writing work of the 
OP data is necessary.

•  When the optical device KEM480AHA/C2RP1 (OP1) is 

replaced (The complete MB1305 board doesn’t replace).

•  When both the optical device KEM480AHA/C2RP1 (OP1) 

and complete MB1305 board are replaced.

•  When the complete MB1305 board is replaced (The optical 

device KEM480AHA/C2RP1 (OP1) doesn’t replace)

 

(In this case, do the work of “3. Optical device KEM480AHA/
C2RP1 (OP1) replacement” other than the replacement of new 
optical device).

Note: The servo adjustment is done while writing the OP data. The manual 

adjustment is unnecessary.

 

  LD ON TIME history doesn’t carry over.

 

  Do not touch any optical block parts, turn table and during replac-

ing. BD laser diode is very sensitive.

1. Preparation
1-1. ESD Countermeasure
It is necessary to confi rm the state of static electricity in the work 
space before the repair is started.
The static electricity resistance of the BD laser is weaker than that 
of the DVD/CD laser.
Do work space and worker’s ESD countermeasures to prevent de-
struction by ESD.

1-2. Jig
•  Digital camera (Recommend with macro mode)
• USB 

memory

• PC
•  Barcode decoder (Refer to “1-3. Barcode decoder 

(BDPRdec_ver3.0)”)