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TROUBLE SHOOTING TABLE
Checking the R signal line of output PWB
Are outputs at pins (2), (18) and (19)
of IC4034 as specified?
Yes
Are there signal inputs at pins (1)
each of IC4401 thru IC4406?
Yes
Are there signal outputs at pins (7),
(8) and (14) of IC4036 and IC4407?
Yes
Are signals fed from pins (2) thru (7)
of connector RP to the panel?
Yes
Does flicker happen?
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.
No
IC4034, IC5002 or nearby circuit in
trouble.
Check connector CC. Do signals go
No
to pins (13), (14), (16), (17), (19) and
(20) of this connector?
Yes
Any of IC4401 thru IC4406 faulty.
No
IC4401 thru IC4406, IC4436, IC4407
or nearby circuit in trouble.
No
Connector RP poorly soldered or in
trouble.
No
Go to "Checking the image for
shifting".
No
Does frame pulse go out of IC4077?
Yes
Q4024, Q4025, Q4026 or their signal
line in trouble.
27
(Continued)
No
Connector CC poorly soldered or in
trouble.
No
Are FRP1 and FRP2 signals fed to
pins (9) and (12) of IC4077?
Yes
IC4077 or nearby
IC1001 or nearby
circuit in trouble.
circuit in trouble.
XG-NV1E
XG-NV1EA
No
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Troubleshooting
