XG-V10WE (serv.man8). Service Manual text - Page 1-59 - Sharp Projector Service Manual (repair manual). Page 47

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47
XG-V10WE
AN-SD1E/S422E
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-1
Checking the PC PWB
No
No
Yes
Yes
Does the user menu appear 
onscreen?
Is screen color as specified?
Check the GA4 and its 
peripherals.
Adjust the output system in the 
process adjustment.
0
0
End
Overwrite the flash ROM.
Check the RGB input.
(Check the basic signal flow. 
The COMPONENT and VIDEO 
signals flow in the same way 
from CVIC_IC up to DAC OUT. 
No checking is therefore 
needed from the CVIC on.)
Check the COMPONENT 
input.
(The signal flows in the same 
circuit as with the RGB input. 
Check the SOG (Sync On 
Green) circuit and the color 
adjust circuit, among others.)
Check the VIDEO input.
(The VIDEO signal comes to 
CVIC_IC via a different route 
from the RGB input signal. So 
check the VIDEO DACÆEPLL 
IC.)
Check the DVI input.
(Check the DVI digital input 
and the DVI analog input 
alike.)
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