Read Sony BDP-S790 Service Manual online
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DRIVE REPAIRING
1-4-1. Preparation
1-4-2. Checking Flow ~ Drive (BU) section ~
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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.
Drive flowchart
BDP-S790 can play the BD-disc
BLX-104
BDP-S790 can play the DVD/CD-disc
Check Drive Power Supply
Q303 Pin 6: 12V
IC307 Pin 1: 5V
Check PS301, PS302
Replace PS when open
Check / replace the FFC cable, then check
BDP-S790 operates normally
OPT-007 FFC cable (1-839-585-11)
Check the Optical Block Unit (BU) by
service mode. (Flowchart zz)
BU IOP is OK?
Replace the Optical Block Unit (BU)
Optical Block Unit (BU) replace
(Flowchart yy)
OK
DVD: HLX-513
CD: HLX-A1
CD: HLX-A1
NO
YES
NO
YES
YES
NO
NO
NO
SPD-007 FFC cable (1-839-582-11)
BDP-S790
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