XV-Z91E (serv.man10). Troubleshooting table - Sharp Projector Service Manual (repair manual)

xv-z91e (serv.man10) service manual
Model
XV-Z91E (serv.man10)
Pages
10
Size
30.65 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Troubleshooting table
File
xv-z91e-sm10.pdf
Date
Next: Sharp XV-Z91E (serv.man11) Service Manual

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21
XV-Z90E
TROUBLE SHOOTING TABLE
Yes
No
Checking of Basic Operation
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
No
Does the video input operate 
normally?
Is the component input acting 
normally?
Does the 15pin D-Sub input act 
normally?
Is the user menu displayed?
Does the cooling fan rotate and 
does the lamp light up?
Go to "Checking of Power Unit".
Check the peripheral circuits of IC8001 
and IC2002.
Go to "Checking of Lamp Lighting-up"
Check the formatter circuit and 
its periphery.
Check of IC6004 (AD) or 
IC3104 and check of analog 
RGB input
Is there input signal at pins 
(8), (17) and (23) of IC8013?
Go to "Checking of Video 
Input". Is the input signal of 
IC3105 coming?
Check IC3102 and its 
peripheral circuit.
No
Check IC3104 and its 
peripheral circuit.
No
Check IC3105 and its 
peripheral circuit.
Does the POWER LED light up or 
flicker in red or green?
End
Does the set operate by the set's 
key or the remote controller's 
power key?
22
XV-Z90E
Yes
No
Checking of Power Unit
Are connectors in the power unit 
completely inserted?
Yes
No
Is the lamp door closed 
completely?
Close the lamp door completely by 
screws.
Yes
No
Is the bimetal switch not cff?
Replace the bimetal switch or 
press the red button to recover.
Yes
No
Is AC voltage applied to AC input 
both ends of D7001?
Replace F7001. 
Replace if any other damages, etc.
Yes
No
Is DC voltage about 6V on C7105 
both ends?
Check around IC7003 of the 
primary side and D7103. 
Replace if any damages, etc.
Yes
No
Is voltage about 360 V DC on the 
cathode of D7004?
Replace the ballast power 
source side.
Yes
No
Is there rated voltage at the output 
terminals of CN7101 and CN7102?
Check the secondly side circuit of 
T7001, etc. Replace if any 
damages, etc.
No
Check the primary side circuit of 
IC7001, etc. Replace if any 
damages, etc.
Check the PWB circuits of relevant 
output sides.
Securely insert each connector.
23
XV-Z90E
Lamp does not light up.
Yes
Yes
Is the cooling fan rotating?
Check the socket
Is the P1701 (22) pin H level?
No
Check the power circuit or the fan 
circuit of the main circuit.
Yes
Is the color wheel rotating sound 
heard?
No
Check around IC9101 circuit, motor 
driver IC and IC9102, 9003.
No
Normal
Abnormal
Is the lamp discharging sound 
heard?
Yes
Yes
Is DC 340V voltage applied across 
the ballast power?
Lamp failure to light up. Go to
"Formatter Unit Troubleshooting".
No
Check the control line P-SAVE. 
Is the level converted at IC8001, 
B5 output, RN4904?
No
Yes
Check the power circuit.
Yes
Check IC8001 and the 
peripheral circuit.
No
Replace the color 
wheel.
Check the 
formatter PWB.
No
Replace the lamp.
24
XV-Z90E
No
Yes
Does POWER LED flicker in red ?
Yes
Turn on the power again.
Yes
Is P1701 (9) pin (P CON0) H?
Is the FAN voltage supplied?
No
Is it in the stand-by due to 
an error?
No
This is the failure of 
IC2002.
Yes
FAN_ERROR is being detected.
Check around Q1701 and around 
IC2002 (21) pin.
Yes
No
No
No
Is 13 V outputted to P1701 (17) 
(18) (19) pins?
Go to "Checking of Power Unit"
Check IC1708, IC1710 and 
around these ICs.
Yes
No
Is BU 5 V outputted from 
IC1701?
Yes
Is Bu+6.5V outputted to P1701 
(12) (13) (14) pins?
Check IC1701 and its 
periphery."
Yes
No
Is BU 3.3 V outputted from 
IC1702?
Check IC1702 and its 
periphery.
Check IC1703 and its 
periphery.
Yes
No
Is BU 2.5 V outputted from 
IC1703?
Check IC8001 and the circuit 
around the IC.
Check of IC2002 and around I/O
Page of 10
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Here you can read online and download Sharp XV-Z91E (serv.man10) Service Manual in PDF. XV-Z91E (serv.man10) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp XV-Z91E (serv.man10) Projector. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.

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