Read Sony BDP-BX620 / BDP-S6200 Service Manual online
BDP-BX620/S6200
6-11E
6-9 USB (Front) Device Flow/USB (Rear) Device Flowchart
USB device is not recognized
Insert the USB device again.
Is it recognized when the power is
turned OFF and then ON again?
Is it recognized when the power is
turned OFF and then ON again?
No
Is 5V present at CN201
(FR-1304)
board
) pin1?
No
Is 5V present at
CN402
(MB board) Pin 5 or pin 6?
No
Is 5V present at
(MB board)?
No
Power supply IC310 (MB board -
defective
defective
Ye
s
Y
s
e
Yes
Poor contact of the USB device
Defective FFC between the IF
board and the MB board.
board and the MB board.
Does replacing IC501(MB board)
improve the symptoms?
improve the symptoms?
No
Replace the MB board
Yes
Yes
Replace the FFC between the
MB board and the IF board.
Do the symptoms improve?
MB board and the IF board.
Do the symptoms improve?
No
Replace the MB board.
IC 601 (MB board) defective
Yes
Defective FFC between the IF
board and the MB board
board and the MB board
IC501
Pin 5 /6/7?
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