107T6 CRT
91
Repair Flow Chart (Continued)
6 ABL
Check output
from 0V to 5V
3, 2 IIC bus
Check idle status
SDA=Pin3=hi
SCI=Pin2=hi
Check
7802 M24C
1
6
7804 SAA4848PS
E.
CP
U
(7804)
check List
Basic check
Check CP
U
Pin
1
6=5V
Pin45
/
Pin46=48M
Hz
Pin38=A
GN
D
Q1
Q
2
Q
3
H
or
.
Fre
q.
(
K
h
z
)
V32
1
7
"
7
1K
S
-
CAPACI
TO
R S
W
I
T
C
H T
ABL
E
52, 53, 50, 8
H
s
y
nc
/
Vs
y
nc
Check S
y
nc
.
H
s
y
nc
-
in=Pin52
Vs
y
nc
-
in=53
H
s
y
nc
-
out=Pin50
Vs
y
nc
-
out=8
1. N
ormal
Fhout=Fhin
F
v
out=F
v
in
2
.
Self test
Fhout=48
KHz
F
v
out=72
Hz
3
.
S
y
nc out of ran
g
e
Fhin
>
72
.
8
KHz
,
<
28
KHz
F
v
in
>1
68
Hz
,
<
45
Hz
<
2
9.
00
0
0
0
2
9.
00
-
33
.
00
0
0
0
33
.
00
-
36
.
00
0
1
0
36
.
00
-
40
.
00
0
1
1
40
.
00
-
44
.
00
1
0
0
44
.
00
-
47
.
00
1
0
0
47
.
00
-
5
1.
00
1
0
1
5
1.
00
-
55
.
00
1
0
1
55
.
00
-
58
.
00
1
1
0
58
.
00
-
62
.
00
1
1
0
62
.
00
-
66
.
00
1
1
0
>
66
.
00
1
1
1
1
2,
11
,
1
0 (
Q1
,
Q
2,
Q
3)
S
-
cap switch
Check
Q1-Q
3
low
:
0
hi
:
1
Go to cover page
Summary of Contents for 107T6
Page 9: ...Go to cover page Electrical Instructions 107T6 CRT 9 ...
Page 11: ...Go to cover page Electrical Instructions 107T6 CRT 11 ...
Page 33: ...33 107T6 CRT Go to cover page Wiring Diagram ...
Page 36: ...Go to cover page 36 107T6 CRT Main Board C B A 1 ...
Page 37: ...37 107T6 CRT Go to cover page Main Board C B A 2 ...
Page 39: ...39 107T6 CRT Go to cover page Video Board C B A 1 ...
Page 40: ...Video Board C B A 2 Go to cover page 40 107T6 CRT ...
Page 41: ...41 107T6 CRT Go to cover page Control Schematic Diagram C B A ...