Sharp XG-P20XU Bedienungsanleitung Seite 38

XG-P20XU
XG-P20XE
XG-P20XD
TROUBLE SHOOTING TABLE
Checking RGB signal output circuit
Are there RGB input waveforms at
pins (1), (3) and (5) of IC4301?
Check SC4301,P4301 and their
peripheral circuits.
Go to"Checking the output PWB unit".
Checking the 480P, 720P signals.
Are there signal inputs at pins (8),
(10) and (12) of SC4301?
Are there output waveforms at pins
(16) (18) (20) of IC4301 (RGB signal)?
Check SC4301,P4301 and their
peripheral circuits.
Go to "Checking the output PWB
unit".
Yes
Are there output waveforms at pins
(16), (18), (20) of IC4301?
Yes
Yes
Yes
http://www.pureglare.com.au
(Continued)
No
Check the IC3302 of input unit
and its peripheral circuits.
No
Check the IC4301 selector switch,
terminal voltage and peripheral
circuits.
No
Go to "Checking the signal unit
circuit". (signal unit-3/3)
No
Check the IC4301 selector switch
terminal voltage and peripheral circuits?
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