Read Sony XTL-6100MK2 Service Manual online
14
14
4-2. BLOCK DIAGRAM — TUNER UNIT (VIDEO) SECTION (XT-993V) —
XTL-6100MK2
J5-1
INPUT 1
VIDEO
J6-1
INPUT 2
VIDEO
AUDIO
SECTION
VIDEO
AUDIO
SECTION
SIMUL
V1
1
2
3
7
2
13
3
1
5
6
7
1
3
4
VIDEO
SWITCH
IC19
V2
3
2
1
SYNC GENERATOR
IC31
X3
3.58MHz
XT
XT
C.
SYNC
SYNC
RESET
BUFFER
Q90
5
0Z
1Z
0Y
Y
0X
1Y
1X
15
12
14
4
VIDEO SWITCH
IC18 (1/2)
10
9
11
COMP
BUFFER
Q60
NT/PAL
SWITCH
Q127,129
RELAY
DRIVE
Q128
VR4
RGB
DECODER
INPUT
LEVEL
LEVEL
RGB
DECODER
FO
DL2
BUFFER
Q103
APC
ACC
IH
DL
DEM
DL
AMP
MONITOR
OUT
DL AMP
& DAT
Y/C
MIX
HUE
VXO
CHROMA
AMP
24
2
4
3
1
10
15
8
11
12
14
23
32
Y IN
APC TC
VXO1
VXO2
HUE
SYNC
IN
IN
C IN
DLA
IN
DLA
BIAS
BIAS
C ADJ
C OUT
RY1
B+
(S +5V)
R OUT
C. SYNC
G OUT
B OUT
DAT
30
RGB DECODER
IC24
X5 4.43MHz
X4 3.58MHz
VIDEO
BUFFER
Q91, 92
Q91, 92
5
4
12
2
9 10 11
14
15
R
BUFFER
Q64
G
BUFFER
Q63
B
BUFFER
Q62
SYNC
BUFFER
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
OFF
OFF
8
POWER
SW
SW
10
SIRCS
2
BEEP
Q100
Q101
VR5
61
62
46
13
58
59
52
51
64
11
45
POWER
ON/OFF
Q10
SYNC
SEPARATOR
IC17
SIRCS
Q77
COL
HUE
48
V SYNC
H SYNC
H
43 V. MUTE
39 VD/RGB
38
31
32
32
SIMUL
DATA
CLK
NT/PAL
YS
ON/OFF
DISPLAY OFF
BRT
SIRCS
37
BEEP
BEEP
GENERATOR
IC21 (3/3)
BEEP
CONTROL
IC22 (2/2)
IC22 (2/2)
1
6
SYSTEM CONTROL
IC12 (1/2)
8
6
7
2
7
1
RGB
CONTROL
IC22 (1/2)
IC22 (1/2)
BUFFER
Q40, 41
Q40, 41
BUFFER
Q42
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)
AUDIO
SECTION
J8-1
OUTPUT
VIDEO
04
9
6
5
3
RGB
CONTROL
IC21 (1/3)
IC21 (1/3)
9
10
8
4
1
2
SIRCS
CONTROL
IC23
5
6
EEPROM
IC50
BUFFER
Q78
J10-1
SONY NAVI
(NVX)
VIDEO
NAVI IN
VIDEO INPUT SELECTOR
IC30
7
• Signal path
: VIDEO
: AUDIO
2
3
4
MONITOR
MAIN
BOARD
CN1
(XVM-
6100MK2)
1
B
C
A
X
Z
UK/CCIR
B+
(S +5V)
B+
(S +5V)
0Z
0Z
1Z
0X
0X
1X
0Y
Y
0Y
1Y
Z
X
Z
X
Y
SW1
TV SYSTEM
1
2
(Page 15)
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