Plasma Display Panel; Image Is Not Displayed - Sony FWD-50PX3 Service Manual

3-9. Plasma Display Panel

3-9-1. Image is not displayed

Image is not displayed.
Is there any abnormal state in the
connection of each board?
(Refer to "Disassembly" in
Section 1-3.)
No
Is there any abnormal state in
fuse?
. Y-SUS board (3 positions)
. Z-SUS board (2 positions)
No
Is there any abnormal state in
the output (Va, Vs and 5V) of
the G board?
. CN807 (From the G board to
the Z-SUS board)
. CN8 (From the G board to
the Y-SUS board)
No
Is there any abnormal state in
the TIP tube?
Yes
Is the symptom improved after
replacing with another Y-SUS
board?
No
Is the symptom improved after
replacing with another Z-SUS
board?
No
Is the symptom improved after
replacing with another CTRL
board?
No
Replace the plasma display panel.
3-8
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 defective fuse or the
Y-SUS board.
Perform the Va and Vs voltage
Yes
adjustments. If trouble persists,
replace the G board.
No
Replace the plasma display panel.
Yes
Replace the Y-SUS board.
Yes
Replace the Z-SUS board.
Yes
Replace the CTRL board.
n
After replacing the plasma display panel, perform the following adjustments.
. Va Voltage Adjustment (Refer to Section 2-3.)
. Vs Voltage Adjustment (Refer to Section 2-3.)
. AD calibration adjustment (Refer to Section 2.)
. White balance adjustment (Refer to Section 2.)
n
After replacing the Y-SUS board, perform
the following adjustments.
. Vsc Adjustment (Refer to Section 2-4.)
n
After replacing the G board, perform
the following adjustments.
. Va Voltage Adjustment (Refer to Section 2-3.)
. Vs Voltage Adjustment (Refer to Section 2-3.)
n
After replacing the plasma display panel, perform
the following adjustments.
. Va Voltage Adjustment (Refer to Section 2-3.)
. Vs Voltage Adjustment (Refer to Section 2-3.)
. AD calibration adjustment (Refer to Section 2.)
. White balance adjustment (Refer to Section 2.)
n
After replacing the Y-SUS board, perform
the following adjustments.
. Vsc Voltage Adjustment (Refer to Section 2-4.)
FWD-50PX3