XG-NV5XE (serv.man40). 43 - Sharp Projector Service Manual (repair manual)

xg-nv5xe (serv.man40) service manual
Model
XG-NV5XE (serv.man40)
Pages
15
Size
49.36 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / 43
File
xg-nv5xe-sm40.pdf
Date

Read Sharp XG-NV5XE (serv.man40) Service Manual online

29
XG-NV5XE
XG-NV5XM
TROUBLE SHOOTING TABLE
Checking the PWB performance
RGB input in trouble
Feed test pattern signal from 
PC.
Yes
No
Use specified cable.
Is specified cable connected 
between PC and projector?
Yes
No
Power circuit in trouble.
Is supply voltage as specified?
Yes
No
Check the connectors, starting 
from the PC input  circuit.
Does image appear?
Video input in trouble
Go to "Checking the video unit 
circuit".
Through-output in trouble
Through-output circuit in 
trouble.
Remote control in trouble
Go to "Checking the remote 
control".
Go to "Trouble shooting table 
for PC I/F unit ".
30
XG-NV5XE
XG-NV5XM
TROUBLE SHOOTING TABLE 
(Continued)
Checking the video unit circuit    
Yes
No
Check the IC6001 selector switch, 
terminal voltage and input circuit.
Yes
No
Is there video signal input at IC6004?
Check the low-pass and buffer 
circuits of Q6009 thru Q6015.
Yes
No
Are there signal outputs at pins (6) 
and (8) of IC6004?
Check IC6004 and its peripheral 
circuits (bias).
Yes
No
Check the low-pass and buffer circuits 
of Q6002 thru Q6008. Is the signal as 
specified?
Go to "Checking IC801 (RGB signal 
output circuit)".
Is there video signal output at pin (7) 
of IC6001?
Check Q6002 thru Q6008 and their 
peripheral circuits.
Checking the video system
Yes
No
Go to "Lamp fails to light-up".
Yes
No
Is specified voltage fed to EA  
connectors?
Check the power circuit and its parts.
Yes
No
Are there signal inputs at pins (3) and 
(29) of P402?
Are there signals at pin (4) of IC401 
and pin (4) of IC402?
Are there signal outputs at pins (3) 
and (6) of IC816?
Yes
Check the video unit circuit 
(IC6004 and its  peripheral 
circuits).
No
Check the oscillation circuit 
of IC401 and IC402, and 
their peripheral circuits.
Yes
Go to "Checking IC801 
(RGB signal output circuit)".
No
Check IC816, IC806 and 
their peripheral circuits as 
well as switching circuit.
Is the lamp on?
31
XG-NV5XE
XG-NV5XM
TROUBLE SHOOTING TABLE 
(Continued)
Checking IC801 (RGB signal output circuit)
Yes
No
Check the data transfer and other 
performance at pins (17) and (18) of 
video IC801.
No
Go to "No colour or unusual tone", 
"No Y signal" or "Out of sync".
Yes
No
Are there output waveforms at the 
emitters of Q1501,  Q1502 and 
Q1503?
Check IC1501 (amplifier),  IC1502 
(RGB offset) and their peripheral 
circuits.
No
Are A/D outputs of IC1504, IC1505 
and IC1506 as specified?
Check the VCLK, IC1504, IC1505, 
IC1506 and their peripheral circuits.
Yes
Are there RGB output waveforms at 
pins (31), (32) and (33) of IC801?
Checking the chroma and Y signals of IC801
(RGB signal output)
Yes
No
Go to "Checking the video unit 
circuit".
Yes
No
Check the  IC816 switching and their 
peripheral circuits. If there is no signal 
at pins (9) and (1) of IC816, check 3-D 
noise reduction circuit (IC806).
No
Are there signal inputs at pins (20) 
(chroma signal) and (21) (Y signal) 
of IC801?
Check IC801 and its peripheral 
circuits. 
Check IC806 (3-D noise reduction 
circuit) and its peripheral circuits.
Go to "Checking IC801 (RGB signal 
output circuit)".
Yes
Are there signal inputs at pins (12)
(Y signal) and (19)(chroma signal) of 
P402?
Are there output waveforms at pins 
(3)(chroma signal)  and (6)
(Y signal)of IC816?
Go to "Trouble shooting table for PC 
I/F unit".
32
XG-NV5XE
XG-NV5XM
TROUBLE SHOOTING TABLE 
(Continued)
Checking IC806 (3-D noise reduction circuit)
and its peripheral circuits
Yes
No
Check the buffer circuit of Q814 thru 
Q816 as well as Q903 thru Q906.
Yes
No
Are there signal outputs at pins (55)
(Y signal) and (51)(chroma signal) of 
IC806?
Check IC806, IC807 (memory) and 
their peripheral circuits. 
Yes
No
Are there signal outputs at the 
emitters of Q817 (Y signal) and Q910 
(chroma signal)?
Check the low-pass circuit around 
Q817, Q907 and Q910.
Check IC816 and IC801 (RGB signal 
output circuit).
Are there signal inputs at pins (40)
(Y signal) and (45)(chroma signal) of 
IC806?
No colour or unusual tone (NTSC, PAL)
Yes
No
Go back to the signal processing 
block.
Yes
No
Check the oscillation of X801 and 
X802, and their peripheral circuits. 
Check IC803, IC814 and their 
peripheral circuits.
Are there signal outputs at pins 
(46)(R-Y) and (45)(B-Y) of IC801?
Is there chroma signal input at pin 
(20) of IC801?
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Here you can read online and download Sharp XG-NV5XE (serv.man40) Service Manual in PDF. XG-NV5XE (serv.man40) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp XG-NV5XE (serv.man40) 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.