Sharp XV-ZW99U - Checking the PLL-1 circuit; Checking the PLL-2 circuit; Checking synchronization-1; Checking synchronization-2

I
xwzw99u
TROUBLE SHOOTING TABLE (Coutinued)
Checking the PLL-1 circuit
No :
* Go to “Checking synchronization-l” j
IC2001 or nearby circuit in trouble
i
lC3503 or nearby circuit in trouble
Checking the PLL-2 circuit
IC4006?
* Go to “Checking synchronization-2
:
.‘.
:
(4) of IC4006?
Yes
IC2001 or nearby circuit in trouble
‘.
IC4006 or nearby circuit in trouble
i
Checking synchronization-l
I
1
I
Do horizontal and vertical signals (at pins 5
(13) and (14) of RGB connector) come
;
Check pin (47) line of connector
out of PC?
SC1 001
I
I :
:
1 Yes
fit- No “‘;;;. “‘,,,,,---~’ “1,; ‘1;’
Are there signals input at pins (6) and (8)
IC351$ iC3505 or nearby circuit in
:
t
“. “.‘:
IC3511 or nearby circuit in trouble
/
:
I
Checking synchronization-2
I_
No I ” ..
Are there signals input at pins (3) of
1
IC4018?
*, IC410, IC411 or nearby circuit in trouble
( Yes
c- trouble. “‘..
Is there signal input at pin (4) of IC35107
IC4018, IC411 or nearby circuit in
IC3510 or nearby circuit in trouble
39