Checking Flow -Drive (Bu) Section - Sony BDP 5G Repair Manual

Checking Flow ~ Drive (BU) section ~
BLX-104
BDP UNIT ASSY can play the BD-disc.
No
Check Drive Power Supply.
CN301 15p 12V / 12p 5V?
Yes
Check/replace the FFC cable,
BDP UNIT ASSY
then check
normally.
Yes
OK
BDP UNIT ASSY REPAIR GUIDE
Yes
BDP UNIT ASSY
No
Check the Optical Block Unit (BU) by
No
service mode (Flowchart zz).
operates
BU Iop is OK?
Flowchart No.xx (other check sheet)
DVD TEST DISC HLX-513
CD TEST DISC YEDS-18
can play the
DVD/CD-disc.
No
Check PS301,303 and 304.
Replace PS when open.
Yes
Yes
No
Replace the
BU.
Optical Block Check
(Flowchart yy)
5