Drive Repairing; Preparation; Checking Flow ~ Drive (Bu) Section - Sony RMT-B120P 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.

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

Drive flowchart
BLX-104
BDP-BX18/S185/S186 can play the BD-disc
YES
DVD: HLX-513
CD: HLX-A1
BDP-BX18/S185/S186 can play
the DVD/CD-disc
Check Drive Power Supply
NO
Q311 Pin 6: 12V
Q302 Pin 6: 5V
YES
Check / replace the FFC cable, then check
BDP-BX18/S185/S186 operates normally
OP FFC cable (1-839-540-11)
SPD FFC cable (1-839-541-11)
YES
OK
NO
NO
Check PS301, PS302
Replace PS when open
Check the Optical Block Unit (BU) by
NO
service mode. (Flowchart zz)
BU IOP is OK?
1-15
BDP-BX18/S185/S186
NO
Replace the Optical Block Unit (BU)
Optical Block Unit (BU) replace
(Flowchart yy)