DOWNLOAD Sharp XG-NV1E (serv.man5) Service Manual ↓ Size: 60.94 KB | Pages: 17 in PDF or view online for FREE

Model
XG-NV1E (serv.man5)
Pages
17
Size
60.94 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Troubleshooting table - page 22-38
File
xg-nv1e-sm5.pdf
Date
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XG-NV1E
XG-NV1EA
TROUBLE SHOOTING TABLE 
(Continued)
26
Checking the G signal line of output PWB
No
Yes
Connector CC poorly soldered or in 
trouble.
Are outputs at pins (3), (4) and (5) of 
IC4034 as specified?
Are there signal inputs at pins (1) 
each of IC4038 thru IC4043?
Check connector CC. Do signals go 
to pins (4), (5), (7), (8), (10) and (11) 
of this connector?
IC4034, IC5002 or nearby circuit in 
trouble.
Yes
Are there signal outputs at pins (7), 
(8) and (14) of IC4044 and IC4045?
IC4038 thru IC4043, IC4044, IC4045 
or nearby circuit in trouble.
Yes
Are signals fed from pins (2) thru (7) 
of connector GP to the panel?
Connector GP poorly soldered or in 
trouble.
Yes
Does flicker happen?
Go to "Checking the image for 
shifting".
Yes
Is frame pulse fed to pin (1) of 
connector GP?
Yes
Is common bias at pin (24) of 
connector GP as specified?
Yes
Panel in trouble.
Yes
Yes
Q4024, Q4025, Q4026 or their signal 
line in trouble.
Does frame pulse go out of IC4077?
Yes
Are FRP1 and FRP2 signals fed to 
pins (9) and (12) of IC4077?
Any of IC4038 thru IC4043 faulty.
Checking the image for shifting
Yes
Yes
IC1001 or nearby circuit in trouble.
Are signals fed via IC4074, IC4075 
and IC4076 to the panel?
Panel in trouble.
Are signals fed to IC4074, IC4075 
and IC4076?
IC4074, IC4075, IC4076 or nearby 
circuit in trouble.
IC4077 or nearby 
circuit in trouble.
No
IC1001 or nearby 
circuit in trouble.
No
No
No
No
No
No
No
No
No
XG-NV1E
XG-NV1EA
TROUBLE SHOOTING TABLE 
(Continued)
27
Checking the R signal line of output PWB
No
Yes
Connector CC poorly soldered or in 
trouble.
Are outputs at pins (2), (18) and (19) 
of IC4034 as specified?
Are there signal inputs at pins (1) 
each of IC4401 thru IC4406?
Check connector CC. Do signals go 
to pins (13), (14),  (16), (17), (19) and 
(20) of this connector?
IC4034, IC5002 or nearby circuit in 
trouble.
Yes
Are there signal outputs at pins (7), 
(8) and (14) of  IC4036 and IC4407?
IC4401 thru IC4406, IC4436, IC4407 
or nearby circuit in trouble.
Yes
Are signals fed from pins (2) thru (7) 
of connector RP to the panel?
Connector RP poorly soldered or in 
trouble.
Yes
Does flicker happen?
Go to "Checking the image for 
shifting".
Yes
Is frame pulse fed to pin (1) of 
connector RP?
Yes
Is common bias at pin (24) of 
connector RP as specified?
Yes
Panel in trouble.
Yes
Yes
Q4024, Q4025, Q4026 or their signal 
line in trouble.
Does frame pulse go out of IC4077?
Yes
Are FRP1 and FRP2 signals fed to 
pins (9) and (12) of IC4077?
Any of IC4401 thru IC4406 faulty.
IC4077 or nearby 
circuit in trouble.
No
IC1001 or nearby 
circuit in trouble.
No
No
No
No
No
No
No
XG-NV1E
XG-NV1EA
TROUBLE SHOOTING TABLE 
(Continued)
28
Checking the B signal line of output PWB
No
Yes
Connector CC poorly soldered or in 
trouble.
Are outputs at pins (6), (7) and (8) of 
IC4034 as specified?
Are there signal inputs at pins (1) 
each of IC4001 thru IC4006?
Check connector CC. Do signals go 
to pins (22), (23), (25), (26), (28) and 
(29) of this connector?
IC4034, IC5002 or nearby circuit in 
trouble.
Yes
Are there signal outputs at pins (7), 
(8) and (14) of IC4007 and IC4008?
IC4001 thru IC4006, IC4007, IC4008 
or nearby circuit in trouble.
Yes
Are signals fed from pins (2) thru (7) 
of connector BP to the panel?
Connector BP poorly soldered or in 
trouble.
Yes
Does flicker happen?
Go to  "Checking the image for 
shifting".
Yes
Is frame pulse fed to pin (1) of 
connector BP?  
Yes
Is common bias at pin (24) of 
connector BP as specified?
Yes
 Panel in trouble.
Yes
Yes
Q4024, Q4025, Q4026 or their signal 
line in trouble.
Does frame pulse go out of IC4077?
Yes
Are FRP1 and FRP2 signals fed to 
pins (9) and (12) of IC4077?
Any of IC4001 thru IC4006 faulty.
IC4077 or nearby 
circuit in trouble.
No
IC1001 or nearby 
circuit in trouble.
No
No
No
No
No
No
No
XG-NV1E
XG-NV1EA
TROUBLE SHOOTING TABLE 
(Continued)
29
Checking synchronization
No
No
Yes
Yes
Yes
No
Are there signal outputs at pins 
(3)(IN+) of IC2003 and IC2004?
Are there signal outputs at pins 
(15)(H) and (217)(V) of IC1201?
Do horizontal and vertical sync 
signals (at pins (13) and (14) of RGB 
connector) come out of PC?
Are there signal outputs at pins 
(6)(X1/EXT) and (22)(EXFBK) of 
IC1013?
Connector or nearby circuit in trouble.
Go to "Checking the PLL circuit".
IC2003, IC2004 or nearby circuit in 
trouble.
No
Yes
Yes
No
Is there signal output at pin (3)(IN+) 
of IC2005?
Is there signal output at pin (216)(C) 
of IC1201?
Connector or nearby circuit in trouble.
Go to "Checking the PLL circuit".
IC2005 or nearby circuit in trouble.
No
Yes
Yes
No
Is there signal output at pin 
(15)(DOTCLK) of IC1013?
Check the sync circuit and its 
peripheral parts.
IC1201 or nearby circuit in trouble.
IC1013, IC1201 or nearby circuit in 
trouble.
Checking the PLL circuit
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