DOWNLOAD Sharp XG-C50XE (serv.man24) Service Manual ↓ Size: 11.62 MB | Pages: 127 in PDF or view online for FREE

Model
XG-C50XE (serv.man24)
Pages
127
Size
11.62 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Complete service manual
File
xg-c50xe-sm24.pdf
Date

Sharp XG-C50XE (serv.man24) Service Manual ▷ View online

31
XG-C50X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
Yes
Yes
Yes
No
Yes
Yes
No audio output
Is the audio signal outputted from 
the emmitor of Q306?
Is its signal inputted into pin(2) and 
(15) of IC303?
Is its signal inputted into pin(12) 
and (5) or pin(3) and (13) of IC302?
Is its signal outputted from pin(14) 
and (15) or pin(16) and (17) of 
P3102?
Is its signal inputted into pin(14) 
and (15) or pin(16) and (17) of 
SC102?
Check the J431, J421 and their 
peripheral circuits.
Check the P301 and its peripheral 
circuits.
Check the IC303 and its peripheral 
circuits.
Check theIC302 and its peripheral 
circuits.
Check the Q304 and Q305 and its 
peripheral circuits.
Check the connection between 
P3102 and SC3102.
32
XG-C50X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the video system
Is the lamp on ?
Is specified voltage EA 
connectors?
Is the video signal inputted into the 
pin (23) of P3102?
Is the signal outputted from the pin 
(7) of IC4502?
Is the signal outputted from the pin 
(5) of IC4505?
Is the signal inputted into pin(72) 
of P8002?
Go to "Checking the PC I/F unit". 
Go to "Lamp fails to light-up".
Check power circuit and its parts.
Check the video terminal and its 
peripheral circuits.
Check IC4502 and its peripheral 
circuits.
Check IC4505 and its peripheral 
circuits.
Check Q4501 and its peripheral 
circuits.
33
XG-C50X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the S-video system
Is the lamp on ?
Is specified voltage EA 
connectors?
Is the video signal inputted into the 
pin (19) and (21) of P3102?
Is the Y-signal outputted from the 
pin (7) of IC4502?
Is the C-signal outputted from the 
emitter of Q4513? 
Is the signal inputted into pin(72) 
and (73) of P8002?
Go to "Checking the PC I/F unit".
Go to "Lamp fails to light-up".
Check power circuit and its parts.
Check the video terminal and its 
peripheral circuits.
Check IC4502 and its peripheral 
circuits.
Check Q4513 and its peripheral 
circuits.
Check Q4502 and its peripheral 
circuits.
34
XG-C50X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the RGB signal.
Are the RGB signals outputted from 
pin(16), (18) and (20) of IC3101?
Are their signals outputted from 
pin(26), (28) and (30) of P3102?
Are their signals inputted into 
pin(1), (5) and (25)?
Are their signals inputted into 
pin(54), (58) and (62)?
Are their signals outputted from 
pin(45)-(54), pin(57)-(66) and 
pin(69)-(78) of P8001?
Are their signals inputted into 
IC1101, IC1102, IC1201, IC1202,
IC1301 and IC1302?
Are their sgnals inputted into 
SC1101, SC1201, SC1301?
Yes
Check the connection of LCD 
panels
And when video signal and OSD 
are also not displaied, replace the 
LCD panels. 
Check IC 3101 and its peripheral 
circuits.
Check SC3102 and P3102 and 
their peripheral circuits.
Check Q2419 and Q2420 and their 
peripheral circuits.
Check IC2401,Q2401 Q2402 and 
Q2404 and their peripheral circuits.
Goto "Checking the PC I/F unit". 
Check IC1101,IC1102,IC1201,
IC1202,IC1301 and IC1302 and 
their peripheral circuits.
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