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XV-Cl
ou
TROUBLE SHOOTING TABLE (Continued)
Checking the ICI 501
interface circuit
Are there video signal outputs at pins
(32), (34) and (36) of IC1501?
1
Yes
I
Check Q1501, Q1502, Q1503,
'
I
Q1504,
Q1505 and Q1506.
I
r
--m-m-
1
Check the voltages of all the
,I
ICI 501 pins. Check also their
1
peripheral circuits.
I
A
Yes
r
--m-m
Remove Q1701.
Does F1701 break
1
down again?
I
w
Power unit in trouble.
L m----
-I
I
No
r
---------
1
-
Ballast unit in trouble.
No problem
with
fuse
Fuse
blown-out
Is discharging sound heard?
Do Q1701 and L1701 break down in
the short-circuit mode?
r
Replace1
r--l
1
T1702 or
1
I ~~~u$ trigger I
L '"Pi-I
L-'-A
r
RGlEel
FhGkQFOJ
I
Ql701
and
I
I L1701
and thei;
1
L1701.
L
-m
J
peripheral
circuits.
1
28
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