Block Diagram - Tuner Unit (Video) Section (Xt-993V) - Sony XTL-6100MK2 Service Manual

XTL-6100MK2
Q Q
3 7 6 3 1 5 1 5 0
4-2. BLOCK DIAGRAM — TUNER UNIT (VIDEO) SECTION (XT-993V) —
VIDEO INPUT SELECTOR
J10-1
3
VIDEO
1
NAVI IN
CN2 (1/2)
SONY NAVI
12
(NVX) VBS
7
AUX(V)
15
R
14
G
13
B
10
SIRCS
2
BEEP
V2
V1
2 4
2
VIDEO
SWITCH
AUDIO
IC19
SECTION
VIDEO 1
(Page 15)
J5-1
INPUT 1
3 7
VIDEO
J6-1
T E
L 1 3 9 4 2 2 9 6 5 1 3
INPUT 2
5
VIDEO
SYNC GENERATOR
IC31
6 XT
X3
C. BUFFER
3
3.58MHz
SYNC Q90
7 XT
RESET
1
3
SIMUL
AUDIO
SECTION
• Signal path
(Page 15)
: VIDEO
: AUDIO
w w w
04
IC30
7
2
BUFFER
Q78
VIDEO SWITCH
IC18 (1/2)
0Z
5
Z
4
1Z
3
1Y
1
Y
15
0Y
2
0X
12
COMP
X
14 BUFFER
Q60
1X
13
B C A
10 9 11
(S +5V)
SW1
TV SYSTEM
1
2
BUFFER
Q42
BUFFER
Q40, 41
12
11
13
IC21 (2/3)
SIMULATION
BUFFER
Q53
SIRCS
2
CONTROL
4 1
IC23
x a o
. i
http://www.xiaoyu163.com
RGB
10
CONTROL
9
IC21 (1/3)
X4 3.58MHz
RELAY
X5 4.43MHz
DRIVE
Q128
RY1
B+
(S +5V)
NT/PAL
SWITCH
RGB
Q127,129
DECODER
FO
2 4
APC TC VXO1
Y IN
BUFFER
DL2 24
Q103
SYNC
23 APC VXO
IN
Q Q
3 7 6
C IN
CHROMA
32 ACC
AMP
VR4
RGB
DECODER
INPUT
LEVEL
RGB DECODER
IC24
30
B+
SYSTEM CONTROL
IC12 (1/2)
UK/CCIR COL
48 61
62 HUE
Q100
SYNC
V SYNC
7 59
6
SEPARATOR
8 58 H SYNC
IC17
H 46
13 NT/PAL
YS 52
43 V. MUTE
POWER
39 VD/RGB 51 ON/OFF
ON/OFF
Q10
DISPLAY OFF 45
64
BRT
38 SIMUL
SIRCS
11
SIRCS
Q77
6 31 CLK
EEPROM
BEEP 37
IC50
5 32 DATA
u 1 6 3
y
14 14
http://www.xiaoyu163.com
2 4
8 9 9
RGB
5
CONTROL
8 6 3
IC22 (1/2)
3 1
VXO2 HUE
HUE
C. SYNC 15
RGB SWITCH RGB SWITCH
IC25
0Z
5
Z
3 1 5 1 5 0 8 9
4 5
R OUT 1Z
10
3
Y/C
G OUT
DEM 9
MIX
B OUT
8
0X
12
X
14 12
1X
13
DL
AMP
0Y
DLA DLA
2
Y
IN BIAS
15 2
1Y
12 11 14
1
B+
C B A
(S +5V)
9 10 11
IH
VR5
DL
DL AMP
& DAT
DAT
Q101
BEEP
BEEP
1 GENERATOR 6 1
CONTROL
7
m
IC21 (3/3)
2
IC22 (2/2)
c o
.
2
8 9 9
J8-1
VIDEO
OUTPUT
BUFFER
VIDEO
Q91, 92
MONITOR
CN3 OUT
SYNC
12
BUFFER VBS
Q61
IC26
R
0Z 15
Z
2 4 9 8 2 9 9
4 BUFFER R
Q64
G
14
0X X
14 BUFFER G
Q63
B
0Y 13
Y
15 BUFFER B
Q62
C B A
9 10 11
1
3
MONITOR
4
AUDIO AUDIO
MAIN
AUDIO
BOARD
16
SECTION
CN1
NT/PAL
(Page 15)
(XVM-
6100MK2)
+B 6
+B 12V
(S +12V)
(Page 13)
8
POWER
SW
9
PICTURE
OFF
5
BRIGHT
10
SIRCS
2
BEEP