XG-V10WE (serv.man8). Service Manual text - Page 1-59 - Sharp Projector Service Manual (repair manual). Page 46

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46
XG-V10WE
AN-SD1E/S422E
TROUBLE SHOOTING TABLE 
(Continued)
Lamp fails to light-up
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Turn on the power switch. Is 
discharging sound heard from 
the lamp?
Is the ballast cooling fan 
running?
Is DC 360V voltage applied 
between PL1 and PL2 
connector pins?
Is power EA connector 
disconnected?
Check the power circuit.
Is the lamp out of socket?
Reconnect the 
lamp into socket.
Replace the 
lamp.
Reconnect the 
connector into socket.
Check the 
microcomputer circuit.
Replace the ballast.
Is 3.5V or higher voltage 
applied between pins (1), (2) 
and (4) of ballast’s D 
connector?
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