XG-C455W (serv.man5). Troubleshooting Table — Sharp Projector Service Manual (repair manual)

Model
XG-C455W (serv.man5)
Pages
7
Size
411.7 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Troubleshooting Table
File
xg-c455w-sm5.pdf
Date

View Sharp XG-C455W (serv.man5) Service Manual online

XG-C455W/PG-C355W
5 – 1
XG-C455W
Service Manual
 
CHAPTER 5. 
TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
Checking the basic operation
Does the power LED light up or 
flash in red or green?
NO
Has P1704 or P1705 come off or is it 
loose?
YES
Fully insert the connector.
YES
No
Check the TEMP Fuse and BI-
METAL SW
Does the set function with its keys 
or the remote controller?
NO
Go to "Main PWB check".
YES
Lamp does not turn on or it turns 
off in a short time.
YES
Go to "Lamp fails to light-up".
NO
Colors are not display correctly.
YES
Has SC1101, SC1201 or SC1301 
come off or is it loose?
YES
Fully insert the connector.
NO
Are RGB and component input 
displayed normally?
NO
Go to "RGB and component signal 
check".
YES
Is VIDEO input displayed nor-
mally?
NO
Go to "VIDEO input check".
YES
Is S-VIDEO input displayed nor-
mally?
NO
Go to "S-VIDEO input check".
YES
Does the LAN function?
NO
Go to “checking the LAN”.
YES
END
XG-C455W/PG-C355W
5 – 2
Main PWB check
Is 6 V applied to TL1711, 13 V to TL1712 and 17V to TL1727?
NO
Go to "Power supply ballast PWB check".
YES
Is approx. 5 V applied to TL1709?
NO
Check IC1710 and peripheral circuits.
YES
Is 1.8 V applied to TL1704?
NO
Check IC1702 and peripheral circuits.
YES
Is 3.3 V applied to TL1706?
NO
Check IC1704 and peripheral circuits.
YES
Is 1.2 V applied to TL1705?
NO
Check IC1706 and peripheral circuits.
YES
Is 5 V applied to TL1708?
NO
Check IC1707 and peripheral circuits.
YES
Is 3.3 V applied to TL1703?
NO
Check IC1708 and peripheral circuits.
YES
Is 15.5 V applied to TL1707?
NO
Check IC1705 and peripheral circuits.
YES
Is5 V applied to TL1701?
NO
Check IC1701 and peripheral circuits.
YES
Is 3.3V applied to TL1723, TL1734?
NO
Check IC1703, IC1713 and peripheral circuits.
YES
Is 3.3V applied to TL2002?
NO
Check IC2002, IC2003, IC2004 and IC2005 and periph-
eral circuits.
YES
Is 0 V applied to pin(2) of S2701?
NO
Check that it is set to the NORMAL  side. Or remove 
S2701.
YES
Is rectangular wave of 27 MHz sent to TL2004?
NO
Check X2002 and peripheral circuits.
YES
Is 0.9V applied to pin(8) of IC2106?
NO
Check IC2106, Q2103 and peripheral circuits.
YES
Check IC2001, IC2101, IC2102, IC2103, IC2104, IC2202 and periph-
eral circuits.
XG-C455W/PG-C355W
5 – 3
Lamp fails to light-up
Turn on the power switch. 
Is discharging sound heard 
from lamp?
YES
Is the lamp out of 
socket?
YES
Reconnect the lamp into 
socket.
NO
NO
Replace the lamp.
Is the ballast cooling fan running?
YES
Check the cooling fan cir-
cuits.
NO
Does the power LED 
flash red in 0.5 second 
interval?
YES
Check the “RCS” signal. 
(Air filter cover/Lamp door/
Lens door)
NO
Is the DC voltage of 380V applied to pin(1) of P702 connector?
NO
Check the power supply cir-
cuits.
YES
Is LOW LEVEL voltage 
applied between pins(3) 
and (4) of Main's P1702 
connector?
NO
Is the P1702 connector 
disconnect?
NO
The lamp light-up. After 
about 30 seconds, the 
TEMP LED flash red and 
the lamp turn off.
YES
Check the TEMP1, 
TEMP2 and TEMP0 
signal line.
YES
YES
NO
Replace the ballast.
Reconnect it into 
socket correctly.
Check the microprocessor 
and its peripheral circuits.
XG-C455W/PG-C355W
5 – 4
Checking the power unit
There is no voltage output at P703?
NO
Check the Main PWB 
unit.
YES
Is AC voltage (90-264V) applied across the 
P801 connector?
NO
Check the P801 or AC 
Cord.
YES
Is AC voltage (90-264V) applied across the 
P701 connector?
NO
Is the resistor R729 
open?
YES
Replace R729.
YES
NO
Replace power unit?
Is the fuse F801 open?
YES
Replace the F801.
NO
Is the Bimetal SW open?
YES
Push the red button of 
the bimetal.
NO
Replace the Inlet unit.
XG-C455W/PG-C355W
5 – 5
RGB and component signal check
                                          
Send component signal or RGB signal of 1080i (or 720P) from 
COMPUTER/COMPONENT Terminal.
Select COMPUTER1 or COMPUTER2 using keys on the main 
unit or the remote control.
YES
Is image displayed normally?
YES
End
                                          
NO
Are picture signals sent to TL2502, TL2507, and TL2508?
NO
Check IC2403 and the peripheral circuits.
YES
Is 3.3V applied to TL1723 and TL1734?
NO
Check IC1703, IC1713 and peripheral circuits.
YES
Is 2.5V applied to TL1733?
NO
Check IC1711 and peripheral circuits.
YES
Check IC2505 and peripheral circuits.
DVI digital input check
                                               
Send the DVI digital signal to the DVI Terminal.
Select “DVI-D Computer” using the keys on the main unit or the 
remote controller.
                                                
Does an image appear properly?
YES
End
 NO
Is the DVI signal supplied to R2549, R2550, R2552, R2553, 
R2555, R2556, R2557 and R2558?
NO
Check DVI Terminal, L2801, L2802, L2803, L2804, D2801, 
D2802 and peripheral circuits.
YES
Is 3.3V applied to TL1723 and TL1734?
NO
Check IC1703, IC1713 and peripheral circuits.
YES
Is 2.5V applied to TL1733?
NO
Check IC1711 and peripheral circuits.
YES
Check IC2505 and peripheral circuits.

Download Sharp XG-C455W (serv.man5) Service Manual (Repair Manual)

Here you can view online or download Sharp XG-C455W (serv.man5) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp XG-C455W (serv.man5) Projector. Information contained in Sharp XG-C455W (serv.man5) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).