Read Sony BDP-S550 Service Manual online
-13E
BDP-S550
USB Device Flow
USB device is not recognized
EXT display appears on the FLD
No
EXT appears when turning on/off the power
No
EXT appears when reinserting memory and
turning power on/off
turning power on/off
No
To FL/FR Flow
Yes
Yes
Yes
Not recognized after inserting memory
(CUE)
(CUE)
Memory not completely inserted
Voltage of pin 2 of USB board CN361 is 5V
No
Check harness between USB board and MB
board
board
Yes
Perform USB test of the service mode
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