Drive Repairing; Preparation; Checking Flow ~ Drive (Bu) Section - Sony BDP-S485 Service Manual

- 1 DRIVE REPAIRING

. 4

1-4-1. Preparation

•
ESD Measures
It is necessary to check the working space ESD condition
before starting the Drive Part (BU) repairs
The ESD-resistance of BD Laser is weaker than DVD/CD Laser
To prevent ESD destruction, please make sure the working
space and human ESD.
•
How to open FFC Holder. Refer below picture.

1-4-2. Checking Flow ~ Drive (BU) section ~

Drive flowchart
BLX-104
BDP-S480 can play the BD-disc
YES
DVD: HLX-513
CD: HLX-A1
BDP-S480 can play the DVD/CD-disc
1
1
1
2
2
2
NO Check Drive Power Supply
CN301 Pin 3: 12V
IC309 Pin 1: 5V
YES
Check / replace the FFC cable, then check
BDP-S480 operates normally
OP FFC cable (1-838-615-11)
SPD FFC cable (1-838-617-11)
YES
OK
NO
1-15
NO
Check PS301, PS302
Replace PS when open
Check the Optical Block Unit (BU) by
NO
service mode. (Flowchart zz)
BU IOP is OK?
BDP-S485
NO
Replace the Optical Block Unit (BU)
Optical Block Unit (BU) replace
(Flowchart yy)