Read Sony BDP-BX59 / BDP-S490 / BDP-S590 Service Manual online
9-6
FR-320 IF board flow chart (1/2)
BDP-BX59/S590/S490
Power key can’t
Function
Any pulse appear if button press
at pin 10 IC702
Change FR board
Any CLK signal at CN701
To main flowchart
Any high (3.3V) to low (0V) signal
at pin 6 CN701
To main flowchart
Any signal at CN701 when power
button being pressed?
Change IC702
To main flowchart
Play key can’t function
Any pulse appear if button press
at pin 10 IC702
Change FR board
Any CLK signal at CN701
To main flowchart
Any high (3.3V) to low (0V) signal
at pin 6 CN701
To main flowchart
Any signal at CN701 when play
button being pressed?
Change IC702
To main flowchart
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
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