Sony SLV-M20HF - Video Cassette Recorder, Руководство по обслуживанию

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SLV-M20HF
3-2. VIDEO BLOCK DIAGRAM
3-3 3-4
IC500
OSD
BOARD
AJ-2
VIDEO
MA-335 BOARD
1
CJ801
CN801
L2 V
1
CN423
TU700 36
FROM/TO
TUNER
BLOCK
TU V
CLP
CLP
CLP
34
28
32
30
35
DRUM
VIDEO
HEAD
SP
CH1
SP
CH2
EP
CH1
EP
CH2
CN260
ENV
DET
3
2
5
6
13
14
11
10
18
SW7 SW3 SW3
PB
PB
SW8
SW4
SW10 SW6
PB
PB
SW9 SW5
4
12
SW1
SW2
REC
REC
COMP
LOGIC
HPF
REC
IDEL
26
16
29
19
20
17
21
VCA
C SYNC
DATA
CLOCK
RF SWP
C ROT
L263
L262
SW5V
2
3
CN261
CHECK
PIN
REC CURR
PB RF
RF SWP
10
7
6
9
8
13
12
11
1
IC260
VIDEO REC/PB AMP
Y/C 1
Y/C 2
Y/C 3
IC201
Y/C PROCESSOR
VIDEO
AGC
SUNC
SEP
37
Y/C
MIX
R
P
R
P
QH/QV
INS
R
P
VIDEO
AMP
SEP Y NR
CLP
38
40
42
43
NT
R P
5
12
1H
DL
7
10
CLK
Q209
BUFFER
IC202 (1/2)
Q505
BUFFER
C ROT 66
15
PB Y/C
KIL
SEQ
C
LPF
14
20
P
R
P
R
ACC
AMP MAIN
COMV.
N
S
P
R
16
18
REC RF
FM
AGC
DEM
P
R
BPF
DL
EQ
3
1H
DL
13
Q210
BUFFER 48
25
IC202 (2/2)
1 50
DE
EMPH.
Q208
52
26 CLP
DE
EMPH.
FM
MOD
REC
EQ
R
P
R,A
B
R
P
VXO1 56
55
X201
10 VCO I
(1/2)
L206
L204
47 C VCC
36 Y VCC
SW5V
V IN 3
13
10
V SYNC
12 H SYNC
H SYNC
25
8 DET
IC501
AFC
EXS 8
XS 9
X500
14.318MHz
18 CS
22 S CLK
23 S IN
11 VCO O
X501
11 V SYNC
VIDEO 2
YOUT
30
RF ENV IC160 60
C SYNC IC160 66
S OUT1 IC160 80
S CLK1 IC160 81
RF SWP IC160 1
FROM/TO
SYSCON
BLOCK
Q810
BUFFER
Q809
SW
BUFFER
Q804,D801
Q806-808
Q805
21
SP
SW
WAVE
SHAPER
PB RF
EQ AMP
Q851-854
CLAMP
Q855-857
Q802,803
Q260
BUFFER
C
TRAP
22
28
PB RF
REC RF
Q201
BUFFER
24
AGC
27
Q801
BUFFER
3.579MHz
Q211
BUFFER
VD 5
HD 9
FSC
BPF
46
45
33
Q502
BUFFER
Q503
BUFFER
Q560
P CONT1 CN162 21
RF VIDEO TU700 5
HDET CN162 2
CG CS CN164 12
CG V CN164 23
Q VD IC160 4
I2C DATA VIDEO IC160 28
SERIAL
DECODER
64
I2C CLOCK VIDEO IC160 30 63
FROM/TO
SYSCON
BLOCK
TO
TUNER
BLOCK
LINE 2
IN
CJ570
LINE 1
IN
VIDEO
CJ570
LINE
OUT
VIDEO
Q204
Q214
BUFFER
S VHS
DET
68 65 69
SW 5V
S VHS IC160 12
IC201 @• REC
1Vp-p
H
IC260 #º REC
0.5V/Div
0.1
µ
sec/div
IC260
@•
REC
20mV/Div
0.1
µ
sec/div
IC260 @™ PB
200mV/Div
0.1
µ
sec/div
IC260 !• REC/PB
IC260 !¶ REC/PB
2.3Vp-p
H
5Vp-p
30Hz
5Vp-p
30Hz
IC201
#¶
REC/PB
4Vp-p
H
IC201
$∞
PB
500mVp-p
H
IC201
#∞
REC
1Vp-p
H
IC201
#•
REC/PB
2Vp-p
H
IC201 %§ REC
3.579545MHz
550mVp-p
IC201
%§
PB
3.579545MHz
500mVp-p
IC201 $• REC
IC201
%º
REC
0.23Vp-p
H
IC201
$•
PB
IC201 %º PB
340mVp-p
H
IC201 @∞ REC
0.5Vp-p
H
IC201 !∞ PB
200mV/Div 0.1
µ
sec/div
CN261
3
PB
200mV/Div 0.1 µ sec/div
CN261 1 REC
IC260 4 REC
1V/Div
0.1
µ
sec/div
CN261
2
PB
Q802
0.2V/Div
0.1
µ
sec/div
B
PB
IC500
3
,
@∞
REC/PB
2Vp-p
H
IC501
!º
REC/PB
503.5kHz
0.65Vp-p
IC500 9 REC/PB
5Vp-p
14.31818MHz
Q810 E PB
0.1V/Div
0.1 µ sec/div
(SEE PAGE 4-32)
(SEE PAGE 4-5,8,15,17,19)
(SEE PAGE 3-12)
(SEE PAGE 3-6)
(SEE PAGE
3-6)
(SEE PAGE
3-11)
SO 0 CN162 8
SCKO CN162 6
3
5
1
7
CN501
TO/FROM
MG-21
BLOCK
OSD V IN
OSD V OUT
OSD V SYNC
OSD H SYNC