Akai PDP4294LV1 Service Manual Page 74

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4. Trouble shooting.
what kind of defect?
Fast check up
Horizontal defect?
vertical defect?
Mis –discharge
on screen?
No display?
defect
Check model No. of module ,all connectors and cables.
Check panel appearance
Check PSU output (Va,Vs,5v)
Check Y, Z b/dinput voltage
Replace ctrl b/d
Replace Y, Z b/d
Check panel appearance Check COF
Replace ctrl b/d
Replace X b/d
Check FPC Replace Y drv b/d
Replace Y sus b/d
Replace ctrl b/d
Replace Y drv b/d
Replace Y sus b/d
Replace ctrl b/d
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