Question about Panasonic TH-42PZ700U 42 in. Plasma Television
To start check all cables attached to TV , and test TV with no device or a minimal set of devices connected.
A faulty connected device or a defective cable can cause the problem.
If plasma TV loose picture erratically, but tv keeps working, then the most common fault is concerning Sustain boards.
Sustain boards (Ysus Zsus) function is sustaining voltage on the plasma screen. If one of them is faulty, among other problems you can suddenly get darker picture or no picture.
You can replace Sus boards buying one of the kits , however part should be tested by a technician before repair. Less commonly but still possibly, the problem can also be caused by a faulty digital controller board or faulty buffer board inside the TV.
Here the parts:
YSUS SC BOARD TNPA4250 PANASONIC TH-42PZ700U
XSUS SS BOARD TNPA4251 PANASONIC TH-42PZ700U
Posted on Sep 26, 2009
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Posted on Jan 02, 2017
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