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TROUBLE SHOOTING TABLE
No picture
Is the lamp on?
No
No
Check the lamp.
Is voltage applied at the EA
and EB connectors?
L
--I-
r
----
----
Yes
r
----
E
----
-I
-m-m
Check the power unit.
1
L
---------
-I
Check the ballast unit circuit.
No
L mm-------
J
Is there signal at pins (21) and
(29) of lC801?
/
r
----
mm--
Yes
Check IC401, DL401 and their
L
peripheral circuits.
----I----
-l
I
Is there signal at pins (I), (2) and (3)
of P803?
I"
I
Yes
I Check IC801, IC804, Q801, Q802,
'
Q803 and their peripheral circuits.
r
---m
----
Go to "Checking the IC1501
1
L ----m----
-I
I
interface circuit".
I
No color or poor tint with
NTSC
signal
Is there chroma signal input at pin
No
(20) of IC801?
r
Yes
----
----
peripheral circuits.
r
mm--
---m
Check IC801, IC802, IC804 and its
1
L -m---m-mm
-I
1
peripheral circuits (X801 and C810 in
1
particular).
mm-m----m
J
24
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