Summary Of Troubleshooting Guide - Sony FWD-50PX3 Service Manual

3-3. Summary of Troubleshooting Guide

Defect
Image is not displayed.
No
Vertical image is abnormal.
No
Horizontal image is abnormal.
No
Mal discharge
FWD-50PX3
Check module, all connectors and cables
. Check panel appearance.
. Check all fuse.
Yes
. Check PSU output. (Va, Vs, 5 V)
. Check Y-SUS and Z-SUS boards
. Replace the CTRL board.
. Check panel appearance.
Yes
. Check TCP.
. Replace the CTRL board.
. Check FPC.
Yes
. Replace the YDB or YDT board.
. Replace the Y-SUS board.
. Replace the CTRL board.
. Replace the YDB or YDT board.
Yes
. Replace the Y-SUS board.
. Replace the CTRL board.
(Include exhausting tip)
input voltage.
→ Replace the XC, XL or XR board.
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