DOWNLOAD Sharp XG-XV2E (serv.man2) Service Manual ↓ Size: 659.12 KB | Pages: 47 in PDF or view online for FREE

Model
XG-XV2E (serv.man2)
Pages
47
Size
659.12 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Service manual part one
File
xg-xv2e-sm2.pdf
Date
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33
XG-XV2E/M/A
TROUBLE SHOOTING TABLE 
(Continued)
Checking the clock circuit and its peripheral circuits
Yes
No
Is X8002 oscillating?
X8002 or its peripheral part faulty.
Yes
No
Is pin (3) of IC8001 oscillating?
No
Does pin (63) of IC8001 function?
C8288 or its peripheral part faulty.
IC8001 or its peripheral circuit faulty.
Yes
Check the sync signal circuit and its 
peripheral circuits.
No
Are there signals at pins (275) thru 
(277) of IC8025?
LCP circuitry faulty.
Yes
No
No
Are there signals at pins (141), (145), 
(148) and (159) of IC8020?
IC8025 or its peripheral circuit faulty.
Yes
Is the input having a resolution below 
XGA level or in the video mode?
Yes
Yes
No
Are there signals at pins (13), (14), 
(43) and (44) of TC2 connector?
IC8025 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (238) and 
(239) of IC8025?
IC8020 or its peripheral circuit faulty.
Check the PLL circuit and its 
peripheral circuits.
34
XG-XV2E/M/A
TROUBLE SHOOTING TABLE 
(Continued)
Checking the PLL circuit and its peripheral circuits
Yes
No
Are there signals at pins (4) and (5) of 
IC8026?
IC8020 or its peripheral circuit faulty.
Yes
No
Is there signal at pin (236) of IC8020?
No
Are there signals at pins (6) and (22) 
of IC8015?
IC8026 or its peripheral circuit faulty.
IC8020 or its peripheral circuit faulty.
Yes
No
Is there signal at pin (15) of IC8051?
IC8015 or its peripheral circuit faulty.
Yes
Check the video circuit and its 
peripheral circuits.
No
Is image as specified at resolution 
above XGA level?
Check the XGA video circuit and its 
peripheral circuits. 
Yes
No
Is image as specified at resolution 
below XGA level?
Check the VGA video circuit and its 
peripheral circuits. 
Yes
No
Hook up a video system. Is the 
display as specified?
Check the video system's video 
circuit and its peripheral circuits. 
Yes
A
35
XG-XV2E/M/A
TROUBLE SHOOTING TABLE 
(Continued)
Yes
Yes
No
No
Is there signal at pin (13) of IC8004?
Is there signal at pin (13) of IC8004?
LCP circuitry faulty.
B
B
Yes
Yes
No
No
Is there signal at pin (3) of IC8008?
Is there signal at pin (3) of IC8008?
IC8004 or its peripheral circuit faulty.
Yes
Yes
Yes
No
No
Is there signal at pin (6) of IC8011
Is there signal at pin (6) of IC8011?
IC8008 or its peripheral circuit faulty.
Yes
No
No
Are there signals at RI1A0 thru -7 and 
RI1B0 thru -7 of IC8025?
Are there signals at VAR0 thru -7 of 
IC8020?
IC8011 or its peripheral circuit faulty.
Yes
No
Are there signals at RI2A0 thru -7 and 
RI2B0 thru -7 of IC8025?
IC8020 or its peripheral circuit faulty.
Yes
No
Are there signals at R1 thru -10 and 
G1 thru -10 of IC8030?
IC8025 or its peripheral circuit faulty.
Yes
No
Are there signals at the bases of Q15 
and Q17?
IC8030 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (9) and (11) 
of TC2?
Q13, Q14 thru Q17 or their peripheral 
parts faulty.
TC2 connector or output PWB faulty.
Checking the XGA's 
red video circuit and 
its peripheral 
circuits
Checking the VGA's 
red video circuit and 
its peripheral  
circuits
Yes
No
Are there signals at VBR0 thru -7 of 
IC8020?
R8275, R8276 or LCP circuitry faulty.
Check the video 
system's red video 
circuit and its 
peripheral circuits
36
XG-XV2E/M/A
TROUBLE SHOOTING TABLE 
(Continued)
Yes
Yes
No
No
Is there signal at pin (8) of IC8004?
Is there signal at pin (8) of IC8004?
LCP circuitry faulty.
Yes
Yes
No
No
Is there signal at pin (3) of IC8007?
Is there signal at pin (3) of IC8007?
IC8004 or its peripheral circuit faulty.
Yes
Yes
Yes
No
No
Is there signal at pin (6) of IC8010?
Is there signal at pin (6) of IC8010?
IC8007 or its peripheral circuit faulty.
Yes
No
No
Are there signals at GI1A0 thru -7 and 
GI1B0 thru -7 of  IC8025?
Are there signals at VAG0 thru -7 of 
IC8020?
IC8010 or its peripheral circuit faulty.
Yes
No
Are there signals at GI2A0 thru -7 and 
GI2B0 thru -7 of IC8025?
IC8020 or its peripheral circuit faulty.
Yes
No
Are there signals at R1 thru -10 and 
G1 thru -10 of  IC8031?
IC8025 or its peripheral circuit faulty.
Yes
No
Are there signals at the bases of Q19 
and Q21?
IC8031 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (5) and (7) of 
TC2?
Q13, Q18 thru Q21 or their peripheral 
parts faulty.
TC2 connector or output PWB faulty.
Checking the XGA's 
green video circuit 
and its peripheral 
circuits
Checking the VGA's 
green video circuit 
and its peripheral 
circuits
Yes
No
Are there signals at VBR0 thru -7 of 
IC8020?
R8277, R8278 or LCP circuitry faulty.
Check the video 
system's green 
video circuit and its 
peripheral circuits
C
C
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