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-1
BDP-S5000ES
FL/FR Flow (1/3)
Power button on the main unit does not work
Does symptom improve when replacing the FL board?
Yes
The potential of pin 1 of CN331 does not change from 3.3V to near 0V when pressing the power button
Does symptom improve when replacing the FC board?
No
Does symptom improve when replacing the FR board?
No
To IFD Board Flow
Yes
Yes
Disconnected FFC. Replace FL board.
Disconnected FFC. Replace IFD board.
Disconnected FFC. Replace FR board.
Ke
y o
perations cannot be made on the main
Does symptom improve when replacing the FR board?
No
Does symptom improve when replacing the IFD board?
No
Replace MB board
Yes
Yes
Which row of keys do not operate?
Disconnected FFC. Replace FC board.
Reference: Relationship of Buttons and Voltages
STOP, PAUSE buttons -> To
Key1 does not
op
erate
OPEN/CLOSE button -> To
Key2 does not
op
erate
PLAY button -> To
Key3 does not operate
Ke
y1 does not o
perate
Is there voltage of about 3.3V at pin 22 o
f
CN361 without
pressin
g the ke
ys?
No
Check 3.3V line and R466 pattern of IFD board. Re
place IFD board if NG.
Yes
Check the resistance of resistors of Key1 line. Also check the surroundin
g
pattern.
Ke
y2 does not o
perate
Is there voltage of about 3.3V at pin 16 o
f
CN361 without
pressin
g the ke
ys?
No
Check 3.3V line and R467 pattern of IFD board. Re
place IFD board if NG.
Yes
Check the resistance of resistors of Key2 line. Also check the surroundin
g
pattern.
Ke
y3 does not o
perate
Is there voltage of about 3.3V at pin 21 o
f
CN361 without
pressin
g the ke
ys?
No
Check 3.3V line and R469 pattern of IFD board. Re
place IFD board if NG.
Yes
Check the resistance of resistors of Key3 line. Also check the surroundin
g
pattern.
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