DOWNLOAD Sharp XV-Z90E (serv.man10) Service Manual ↓ Size: 30.65 KB | Pages: 10 in PDF or view online for FREE

Model
XV-Z90E (serv.man10)
Pages
10
Size
30.65 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Troubleshooting table
File
xv-z90e-sm10.pdf
Date

Sharp XV-Z90E (serv.man10) Service Manual ▷ View online

27
XV-Z90E
Input the Component signal from INPUT 1.
Select INPUT 1 with the keys on the main body or the 
remote control.
Check IC3102 and around it.
Are IC3102 (76) (77) (78) 
outputting and the signals inputted 
to (73) (74) (75)?
Is the picture disturbed?
Is picture outputted?
Is the signal coming to the 
connector TD?
Yes
No
Check of the Terminal 2 PWB.
No
No
Yes
No
Yes
Is the picture signal coming to 
IC3102 (3) (4) (5)?
Check between the connector TD 
and IC3102.
No
Yes
Yes
Check of component 15 pin D-sub 
input
End.
1
4
28
XV-Z90E
Checking of Sync Signal
Is the horizontal synchronized 
signal on IC5001 (6) pin?
Is the vertical synchronized signal 
on IC5002 (6) pin?
Is the synchronized signal is 
outputted from IC5009, IC5005, 
IC5006, IC5007, IC5008?
Are the timing of both vertical and 
horizontal synchronized signals 
correct?
Is the horizontal synchronized 
signal on IC6004 (30) pin?
Is the vertical synchronized signal 
on IC6004 (31) pin?
The sync signal is normal. 
End of checking.
Yes
No
Check the PWB of the signal input 
part.
No
Yes
Yes
Yes
Yes
No
Yes
Check each IC and the peripheral 
circuit of IC.
No
Check IC6001, IC6002 and IC 
peripheral circuits.
No
Set the signal source appropriately.
No
2
Is the signal generator (input 
source) correct?
Yes
IC8001 and its periphery is 
defective.
No
Is the horizontal synchronized 
signal on IC6004 (66) pin?
Is the vertical synchronized signal 
on IC6004 (64) pin?
Yes
Yes
No
Failure of IC6004 and IC 
peripheral circuit.
No
29
XV-Z90E
» 
Formatter Unit Troubleshooting -1/2
Abnormal picture
No
Yes
Rainbow-like colors on-
screen.
No proper matching in 
red, green and blue.
Adjustments made on 
"PROCESS MENU"
"DLP"
"INDEX", but 
correction impossible.
Blackout
Are connections made 
properly with the 
SC9101 and SC9001 
sockets?
Is the color wheel 
running?
IC9101, IC9102 or their 
peripheral circuit, or 
color wheel defective.
Thick, white vertical 
stripes (flashing).
No
Others
IC9003, IC9004, IC9006 
or their peripheral circuit 
defective.
Is connection made 
properly with the 
SC9001 socket?
No
Is the voltage at pin (3) 
of IC9007 as specified 
(+2.5V)?
Yes
Yes
Are there 400-MHz 
sine-wave signals at 
pins (18) and (20) of 
IC9001?
Are there dust deposits on 
DMD, formatter board and 
cLGA contact terminal?
No
Refit the DMD, optical 
mechanism and formatter 
board PWB.
Yes
IC9001 or its peripheral 
circuit defective.
Yes
No
No
Is the specified voltage 
applied to the P9002 
connector?
Yes
IC9003 and/or IC9004 
defective.
Check the main PWB 
and power unit.
Yes
No
Is the voltage at the 
positive-polarity pin of 
C9308 as specified 
(+5V)?
Yes
IC9301 or its peripheral 
circuit defective.
No
Is there 150-Hz pulse 
signal at pin (2) of 
P9003 with no signal 
input?
Yes
Check the color wheel 
sensor PWB.
No
Is the voltage at pin (9) 
of IC9301 as specified 
(+23 to +26V)?
Yes
No
Is the voltage at pin (13) 
of IC9301 as specified 
(-26V)?
Yes
IC9301 or its peripheral 
circuit defective.
No
Is the voltage at pin (49) 
of IC9301 as specified 
(+7V)?
Yes
No
Is a lamp turned on?
Yes
5
6
30
XV-Z90E
» 
Formatter Unit Troubleshooting-2/2
No
IC9301 or its peripheral 
circuit defective.
Is there 60-MHz pulse 
signal at TP9025?
Is the voltage at pin (1) 
of the P2002 main PWB 
at high level?
IC2007, IC2002 or their 
peripheral circuit 
defective.
Is the P2002 connector 
properly connected?
No
Is the specified voltage 
applied to the CN1001
connector?
Yes
Yes
Is the fan running?
Check the ballast unit and 
power unit.
Check the fan circuit.
Yes
No
No
6
5
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