Other Trouble - Sony FWD-50PX3 Service Manual

3-8. Other Trouble

Button failure
Is there any abnormal state in
the connection between P301
on the A board and the H2 board?
No
Replace the A board.
DC fan operation failure
Is there any abnormal state
in the connection P302 and
P303 on the A board.?
No
Is there any abnormal state in
the following items of the fan
assembly? (*)
. Pins 1 to 4 of P302
. Pins 1, 2 of P303
No
Replace the A board.
FWD-50PX3
n
For the replacement parts, refer to Section 6.
The parts other than those described in Section 6 are
not service parts. When the replacement of those parts
is required, replace them in the assembly unit.
Connect correctly.
Yes
n
After replacing the A board, perform the following
adjustments.
. AD calibration adjustment (Refer to Section 2.)
. White balance adjustment (Refer to Section 2.)
. EDID data input
. S-Init Goods (Refer to Section 2.)
n
For the replacement parts, refer to Section 6.
The parts other than those described in Section 6 are
not service parts. When the replacement of those parts
is required, replace them in the assembly unit.
Yes Connect correctly.
Yes Replace the DC fan.
n
After replacing the A board, perform the following
adjustments.
. AD calibration adjustment (Refer to Section 2.)
. White balance adjustment (Refer to Section 2.)
. EDID data input
. S-Init Goods (Refer to Section 2.)
(*)
In the normal state
. Pins 1 to 4 of P302: 9 V
. Pins 1, 2 of P303:
9 V
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