Sony SLV-789HF - Video Cassette Recorder, Руководство по обслуживанию

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SLV-789HF/792HF/799HF
3-2. VIDEO BLOCK DIAGRAM
3-3 3-4
BOARD
MF-316
VIDEO
MA-342 BOARD
1
CNJ491
CN491
L2 V
1
CN423
FROM
TUNER
BLOCK
TU VIDEO
CLP
CLP
CLP
32
35
37
39
31
DRUM
VIDEO
HEAD
SP
CH1
SP
CH2
EP
CH1
EP
CH2
CN260
16
19
24
21
5 PB
PB
PB
PB
17
22
REC
REC
COMP
AGC
DET
13
L270
SW5V
2
3
CN270
CHECK
PIN
PB RF
RF SWP
10
7
6
9
8
13
12
11
IC260
VIDEO REC/PB AMP
IC201
Y/C PROCESSOR
VIDEO
AGC
SYNC
SEP
28
Y/C
MIX
R
P
R
P
LPF
1H
DL
Q203
BUFFER
2
KIL
C
LPF
P
R
P
R
ACC
AMP
N
S
P
R
16
7
REC Y RF
FM
AGC
DEM
BPF1
DL
EQ
55
1H/2H
DL
52 59
53 61
MAIN
EMPH.
FM
MOD
REC
EQ
VXO1
(1/2)
C SYNC IC160 58
RF ENV IC160 8
ENV SW IC160 17
HA SWP IC160 16
RF SWP IC160 18
FROM/TO
SYSCON
BLOCK
7
9
PB RF
REC RF
BUFFER
Q500
TO
TUNER
BLOCK
LINE 2
IN
CJ561
LINE 1
IN
VIDEO
CJ561
LINE
OUT
VIDEO
AGC
ATF
11
10
REC H
REC C
HA
CONT
ENV
DET
6
2
3
4
TU701 28
P
R
PIC
CONT
CHARA
INS
FBC 1/2
6dB
AMP
R
P
R
P
YNR
29
KIL
B.D
23
24
43 46 47
CLP 41
INV
63
50 CLK IN
AMP
LPF
R P
BPF2
MAIN
COMV.
BACK UP
AMP
SUB
BPF SUB
COMV.
1
FM
AGC
4
SQPB
EQ
PB
EQ
6 8 AMP
Q201
SUB
LPF
R
P
Q202
CLP 10 17
95
N.L
EMPH.
DETAIL
ENH
REC H
REC CUR ADJ
TRICK H
REC C
16
99
PB
BGA-B
REC
BGA
PB
BGA-A
B
PA
REC
APC
67
66
VCO
65
62
60
SLD
X201
3.579545MHz
RF SWP
RF ENV
ENV SW
HA SWP
C SYNC
98
RW SWP
97
HA SWP
96
C ROT
SERIAL
DECODER
20 21
C ROT IC160 15
I2C CLK IC160 71
I2C DATA IC160 72
Q502
BUFFER
OSD V IN 50
C VIDEO IN 56
52 OSD V OUT
IC160 (1/3)
BUFFER
Q561
RF VIDEO
TU701 5
2
3
5
7
2
3
5
7
ARC DATA
ARC CLK
VIDEO IN
C IN
VIDEO OUT
CN201
DATA 10
CLK 9
Y IN 18
C IN 20
V OUT 4
IC570
ARC
25
Q VD
Q VD IC160 13
BLOCK
FROM
SYSCON
ARC CLK IC160 41
ARC DATA IC160 42
DE
EMPH
12 REC CUR ADJ
1 TRICK H
AR-20 BOARD
4 4
CN201
CN570
CN570
CN201
Q870
BUFFER
S IN 0 IC160 69
WAVE
SHARPER
17 SO
BLOCK
FROM
SYSCON
IC870
ARC
VIDEO 2
9 HD
5 VD
Q873,874
32FH 10
32FH 11
X870
500kHz
Q875
BUFFER
MEDIA
VIDEO
Q871,872
VIDEO 26
H SYNC 28
V SYNC 29
IC871
VSET
16 SI
15 SCK
32 IRQ
19 RESET
30 XTAL
31 EXTAL
X871
8MHz
S OUT 0
S CLK 0
V SET CS
V SE RESET
IC160 68
IC160 70
IC160 67
IC160 100
(SEE PAGE 4-26)
(SEE PAGE 3-6)
(SEE PAGE 4-7,9)
(SEE PAGE 3-5)
(SEE PAGE 4-28)
(SEE PAGE 3-6)
(SEE PAGE 3-6)
(SEE PAGE 3-5)
IC201 #¶ REC
1.0Vp-p
H
IC201
@•
REC/PB
H 4.2Vp-p
IC260 5 REC/PB
3.4Vp-p
H
IC201 1 PB
0.7Vp-p
V
IC260 9 REC
0.7Vp-p
V
IC260 9 REC
160mVp-p 0.1
µ
sec/div
50mV/div
IC260 !º REC
480mVp-p H
1
IC260
4
REC/PB
3.6Vp-p
V
IC260 !¶ REC
3.4Vp-p
0.1
µ
sec/div
1V/div
0.1
µ
sec/div
0.1V/div
IC201
7,
REC
360mVp-p
IC201 2, REC
480mVp-p
H
IC201 (•
1.5Vp-p
30Hz
RF SW P
REC/PB
IC201
^¶
REC/PB
460mVp-p 3.579545MHz
IC201 @ª PB
2.3Vp-p
H
IC201
@£
PB
0.5Vp-p H