Video Block Diagram - Sony SLV-7700KME Service Manual

4-3. VIDEO BLOCK DIAGRAM

TU-168 BOARD
IO-65
IC704
BOARD
J401
VIDEO SW
CN704
LINE-2
V2 IN
IN
3 1 1 CN705
VIDEO CN402 3 7 1
5
2
TU V V/A SW
VIDEO CD
DIRECT OUT
IO-65
BOARD
J402
LINE-2
V2 OUT
OUT
1
VIDEO CN402
FROM
VIDEO CD
BLOCK(2/2)
CD-169 BOARD
CN304
(SEE PAGE 4-18)
RP-233 BOARD
IC501
M901
VIDEO REC/PB AMP
DRUM
VIDEO
HEAD CN501 PB
11 3
SP
2
CH1
10 SW7 SW3 SW3
PB
7 5
SP
6
CH2
6 SW8 SW4
PB
9 13
EP
14
CH1
8 SW10 SW6
COMP
PB
13 11
EP
10
CH2
12 SW9 SW5
REC
REC
4
IDEL
SW1
REC
VCA
12
SW2
CN502
30
PB RF
2
RF SWP
FOR
3
CHECK
REC CURR
1
IC501 4 REC
1V/div
1µs/div
16
MB-77 BOARD
J601
Q751
LINE-1
IC751
IN
BUFF
VIDEO SEL
VIDEO
Q752
CN604 1 CN602
3 BUFF 3 7
5
Q753
2 4
BUFF
FROM
IC705 7 IN A
KARAOKE.
AUDIO I/O
IC705 6 IN B
BLOCK
(SEE PAGE
J502
4-13)
Q754
BUFF
VIDEO
Q755
LINE-2
BUFF
IN
VIDEO
Q756
CN604
IC751 7 REC/PB
1 BUFFER
CN605
VCD V 23 1.0Vp-p (H)
5V
Q931
Q901
Q502 Q904 Q905 CN503
PB RF Y
EQ
27 BUFF DFS BUFF
AMP
Q902 Q906
VCA
NTSC
24
SP
RF ENV
ENV
HPF 26
DET
RF SWP
RF SWP
17
DATA DATA
19
CLOCK CLK
20
C SYNC COMP SYNC
18
C ROT C ROT
21
Q501
PB RF
PB C
BUFF
22
REC RF
REC RF
28
Q504
5V
Q503
IC501 @¶ PB
0.5V/div
20µs/div
IC501 @¢ PB
0.1V/div
20µs/div
IC501 @§ REC/PB
5.0Vp-p (V)
IC501 !¶ REC/PB
5.0Vp-p (V)
IC501 !• REC/PB
2.4Vp-p (H)
IC501 @™ PB
0.5V/div
20µs/div
IC501 @• REC
0.02V/div
0.1µs/div
4-5
MA-303 BOARD
CN801
REC V
4 27
IC301
VCD V
6 18 3
1
OSD OUT
8 16 2
IC302 7 REC
IC302 $£ PB
0.5V/div 1.1Vp-p (H)
20µs/div
CN301
PB RF Y
2 2
NTSC
4 4
SP
3 3
RF ENV
IC302 !™ REC/PB
5 5
RF SWP
12 12
DATA
4.0Vp-p (V)
14 14
CLK
13 13
COMP SYNC
11 11
C ROT
10 10
Q307
PB C PB C
TRAP
8 8
BUFF
Q301 Q309 Q303
REC RF Y/C
BUFF TRAP
6 6
MIX
Q314
BUFF
Q302
LPF
Q313,315
Q319
ATT
SW
Q308
SP IC201 92
RF ENV IC201 50
TO/FROM
RF SWP IC201 1
SYSTEM
DATA IC201 80
CONTROL
CLK IC201 81
(SEE PAGE
4-12)
COMP SYNC IC201 66
Q404
BUFF
IC401 !§!• REC/PB
IC401 @º REC/PB
2.0Vp-p (H)
IC401 7 REC/PB
1.8Vp-p (H)
IC401
OSD
CV OUT 16
Q320,321
7 BUFF 18 CV IN
Q405 SIN 9
SCLK 10
BUFF 20 SYNC IN
CS 8
SYNC DET 29
27 VCO IN
V SYNC 7
XTAL OUT 3
28 VCO OUT
X401
CT401
17MHz
VCO
XTAL IN 2
IC302 !¡ PB
IC302
2.3Vp-p (H)
Y/C PROCESSOR
11 VIDEO OUT PB C 21
7 VIDEO IN
43 PB Y RF
19
17
18 NTSC
15
IC302 9 REC/PB
28
X302
3.58MHz
27
13
5.0Vp-p (H)
IC302 @¶ REC/PB
0.5Vp-p (3.58MHz)
9 COMP SYNC
12 C ROT
IC302 #• REC
0.4Vp-p (H)
38 PBC
48
D304
IC302 #• PB
1
0.5V/div
20µs/div
44 REC Y RF
Q316
Q306
BUFF
5V 46 DE EMPH
IC302 #™ REC/PB
0.6Vp-p (4.43MHz)
Q322 VHS MAIN
DE EMPH
32
Q312
X301
4.43MHz
BUFF
47 30
Q310
34
C
TRAP
Q311
D308
MESECAM 26
D307
25
D306
23
35 3.58NTSC
37 NT JUDGE 40
Q304
QVD 14
SHARPNESS 3
Q317
PAL60 24
YNR CTL 5
NOICAN 6
29 JOG SP 22
4-6
SLV-7700KME/7700KML
5.0Vp-p (V)
CN701
TO
MOD V TUNER BLOCK
1
TU-168 BOARD
CN703
CN901
(SEE PAGE
SR SO 4-19)
7
SR CLK
TO/FROM
6
DISPLAY
OSD CS
12 CONT BLOCK
SYNC DET
HI-66 BOARD
2
V SYNC CN301
1
(SEE PAGE
4-10)
IC401 2 REC/PB
2.8Vp-p (17.7MHz)
IC303
23
1H/2H
2 DELAY 6
4 23
7
1H
DELAY
12 9
IC304
8
PAL/
SECAM
5 1
DISCRI
18
MECECAM IC201 18
NT JUDGE IC201 78
QVD IC201 2
SHAPNESS Q201 E
PAL60 IC201
6
PENTAL IC201 20
NOICAN IC201
9
FROM
SP/EP/LP IC201 19
SYSTEM
CONTROL
(SEE PAGE 4-12)
JOG IC201 5
ORC SETTEI IC201 75
NTSC 3.58 IC201 93
V PB IC201 23
VCD/VHS IC201 91
NTSC IC201 24