Read Sony XTL-W70 Service Manual online
16
16
XTL-W70
4-2. BLOCK DIAGRAM — TUNER UNIT (VIDEO) SECTION —
J5-1
INPUT 1
VIDEO
J6-1
INPUT 2
VIDEO
AUDIO
SECTION
VIDEO
SIMUL
V1
1
2
3
7
2
13
3
1
5
6
7
1
3
4
VIDEO
SWITCH
IC19
V2
SYNC GENERATOR
IC31
X3
3.58MHz
XT
XT
C.
SYNC
SYNC
RESET
BUF
Q90
Q90
5
12
14
4
VIDEO SWITCH
IC18 (1/2)
9
10
11
COMP
BUF
Q60
Q60
VR4
RGB
DECODER
INPUT
LEVEL
LEVEL
RGB
DECODER
FO
DL2
BUF
Q103
APC
ACC
DEM
DL
AMP
MONITOR
OUT
Y/C
MIX
HUE
VXO
CHROMA
AMP
24
2
4
3
1
10
15
8
11
12
14
23
32
Y
SYNC
IN
IN
C
VR6
R
C. SYNC
G
B
30
RGB DECODER
IC24
X4
3.58MHz
5
4
12
2
9 10 11
14
15
R
BUF
Q64
Q64
G
BUF
Q63
Q63
B
BUF
Q62
Q62
SYNC
BUF
Q61
Q61
RGB SWITCH
IC26
C B A
4
1
9 10 11
14
15
2
13
12
3
5
RGB SWITCH
IC25
C B A
12
15
14
13
CN3
VBS
R
G
B
6
+B 12V
16
NT/PAL
3
AUDIO
5
BRIGHT
9
PICTURE
SW
SW
8
POWER
SW
SW
10
SIRCS
2
BEEP
61
62
46
13
58
59
52
51
64
11
45
POWER
ON/OFF
Q10
SYNC
SEP
IC17
SIRCS
Q77
COL
HUE
V SYNC
H SYNC
H
43 V. MUTE
39 VD/RGB
38 SIMUL
NT/PAL
YS
ON/OFF
DISPLAY OFF
BRT
SIRCS
37
BEEP
SYSTEM CONTROL
IC12 (2/2)
8
6
7
RGB
CONTROL
IC22 (2/2)
IC22 (2/2)
BUF
Q42
Q42
BUF
Q40, 41
SIMULATION
BUFFER
Q53
12
13
11
IC21 (2/3)
+B
(S +12V)
AUDIO
CN2 (1/2)
2
10
13
14
15
7
12
VBS
R
G
B
BEEP
SIRCS
AUX(V)
J8-1
OUTPUT
VIDEO
9
6
3
BUFFER
Q78
J10-1
SONY NAVI
(NVX)
VIDEO
NAVI IN
4
AUDIO
SECTION
1
AUDIO
SECTION
2
AUDIO
SECTION
3
BEEP GEN
IC21 (1/3)
IC21 (1/3)
BEEP
CONTROL
IC22 (1/2)
IC22 (1/2)
RGB
CONTROL
IC21 (3/3)
IC21 (3/3)
VIDEO
BUF
IC20
SIRCS
CONTROL
IC23
9
8
3
1
1
6
4
1
2
7
1
• Signal path
:AUDIO
:VIDEO
(Page 17)
(Page 17)
(Page 17)
(Page 17)
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