DOWNLOAD Sony SLV-798HF / SLV-998HF Service Manual ↓ Size: 6.91 MB | Pages: 82 in PDF or view online for FREE

Model
SLV-798HF SLV-998HF
Pages
82
Size
6.91 MB
Type
PDF
Document
Service Manual
Brand
Device
VCR
File
slv-798hf-slv-998hf.pdf
Date
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SLV-798HF/998HF
JK-159 (LINE-2 IN) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
— Ref. No.: JK-159 Board; 2,000 Series —
There are few cases that the part printed on this diagram isn’t mounted in this model.
4-33
LINE-2 IN
JK-159
SLV-798HF/998HF
MA-318
REC/PB AMP, VIDEO, AUDIO, 
SERVO/SYSTEM CONTROL,
TUNER
FR-130
(MODE CONTROL)
DM-74
(OPERATION SWITCHES)
POWER BLOCK
JK-159
(LINE-2 IN)
SLV-798HF/998HF
POWER BLOCK SR801 (SWITCHING REGULATOR) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
— Ref. No.: SR801 Board; 8,000 Series —
There are few cases that the part printed on this diagram isn’t mounted in this model.
MA-318
REC/PB AMP, VIDEO, AUDIO, 
SERVO/SYSTEM CONTROL,
TUNER
FR-130
(MODE CONTROL)
DM-74
(OPERATION SWITCHES)
POWER BLOCK
JK-159
(LINE-2 IN)
4-35
4-36
SWITCHING REGULATOR
POWER BLOCK SR801
L
F101
2A 125V
C101
0.1/250
L101
D107-110
+
+
+
+
+
GND
C105
1500P
125
Q102
C112
0.0047
C111
0.047
PC101
*R109
D104
*R107
C110
0.047
D103
R104
10K
R102
100K
C107
4.7/50
R103
100K
C106
120/200
D106
C109
0.033
400
FB1
D102
R106
33K/3
T101  POWER TRANSFORMER
D201
D202
D204
C202
1000/16
D205
C201
47/50
L202
20uH
C203
220/16
C205
470/10
L203 
20uH
C206
47/50
*R207
R206
1.8K
PC101
D206
C208
1/50
+
IC201
SHUNT REG.
Q101,102
SWITCHING
1N4005
EG01
ERA15-02
MA165
RD3.0ES
PR1003
RD51F
PR1003
S3L20U
D3S4M
2SC4040
ON3131
1N4005
Ref. No
min
typ
max
ON3131
C204
1000/10
AN1431T
TO
MA-318 BOARD
CN603
120VAC
11
10
9
8
7
6
5        
4
+38
+13
+13
GND
GND
GND
+6V
+6V
POWER  BLOCK  (SR801)
(EXCEPT  Chilean, PX MODEL)
C104
470P
125
R101
6.8M 
1/2
AC IN 
D109
D110
D107
D108
D108
Q101
2SC4054
C102
0.1/250
C103
0.1/125
H
CN101
R108
22 
3
2
1
-30V
-F(0V)
+F(4.5V)
+
C207
470/10
C209
0.01
R208
10
1/2
R201
10  1/2
+
D207
PR1003
R204
0.47
R209
2.7
R205
47
1/2
VR201
500
CN201
(SEE  PAGE  4-25)
P1
P2
B1
B2
S5
S4
S3
S1
S6
S8
S7
R107
R109
R207
100/1
120/1
120/1
560
620
680
1.2k
1.5k
2.2k
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
16
Note :
The components identified by
mark 
!
 or dotted line with mark
!
 are critical for safety.
Replace only with part number
specified.
Note :
Les composants identifiés par
une marque 
!
 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
SLV-798HF/998HF
POWER BLOCK SR709 (SWITCHING REGULATOR) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
— Ref. No.: SR709 Board; 9,000 Series —
There are few cases that the part printed on this diagram isn’t mounted in this model.
4-37
4-38E
MA-318
REC/PB AMP, VIDEO, AUDIO, 
SERVO/SYSTEM CONTROL,
TUNER
FR-130
(MODE CONTROL)
DM-74
(OPERATION SWITCHES)
POWER BLOCK
JK-159
(LINE-2 IN)
SWITCHING REGULATOR
POWER BLOCK SR709
L
F101
T2AL 250V
C101
0.1/250
L101
+
+
+
+
GND
T101  POWER TRANSFORMER
D201
D202
D203
C202
1000/16
D204
C201
47/63
L202
10uH
C203
220/16
C205
470/10
L203 
10uH
C206
47/50
*R204
PC101
D205
C208
0.1
+
IC201
SHUNT REG.
PR1003
RD56FB
EG01C
S3L20U
D3S6M
1N4005
Ref. No
min
typ
max
PC123
C204
1000/16
AN1431T
TO
MA-318 BOARD
CN602
110-240VAC
1
2
3
4
5
6
7        
8
+38
+13
+13
GND
GND
GND
+6V
+6V
POWER  BLOCK  (SR709)
(Chilean, PX MODEL)
C104
R101
1M 
1/2W
AC IN 
C102
0.1/250
H
CN101
9
-27V
-F(0V)
+F(4.6V)
+
C207
470/10
C209
0.047
R201
4.7  1/2
+
D206
PR1003
R206
0.47
R207
2.7
*R202
VR201
5k
CN201
(SEE  PAGE  4-25)
P1
P2
V1
V2
R103
R104
R207
0
6.8
100
10k
10k
15k
100k
120k
220k
L102
D101 - 104
D102
D103
D104
D101
1000p
250
C103
1000p
250 
C107
1000p
250
C108
1000p
250
+
R107
6.8
C114
0.1
*R106
R105
3.3k
C115
0.1
*R104
*R103
C111
47
35
C112
0.1
C116
47p
1k
R108
47
1
R102
47k
3
C110
0.01
400
IC101
1
2 3
4
5
D105
EG01C
C109
180
400
D107
PR1003
D108
PR1003
PC101
PC123
MIP184
C113
0.01
R209
10
C210
1000p
1k
*R205
R203
18k
*R208
10
11
R106
R202
R205
R208
47
470
470
1k
10k
47k
0
2.7
4.7
10
47
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
16
13
Note :
The components identified by
mark 
!
 or dotted line with mark
!
 are critical for safety.
Replace only with part number
specified.
Note :
Les composants identifiés par
une marque 
!
 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
SECTION 5
INTERFACE, IC PIN FUNCTION DESCRIPTION
SLV-798HF/998HF
5-1
5-1.
SYSTEM CONTR
OL — 
VIDEO BLOCK INTERF
A
CE (MA-318 BO
ARD IC161)
*1
Synchr
onized with dr
um rotation. 30Hz 50% duty c
y
cle.
*2
Normally “L“. “H“ when CTL signal is not generated.
*3
V period “H“ pulse.
*4
Selected by REC mode. “H“ in LP mode.“
*5
Composite sync signal (positi
v
e).
Signal
RF SWP
QVD
V SYNC
NT JUDGE
Pin No.
1
4
^§
!£
I/O
O
O
I
O
ST
OP
FF/REW
*1
L
*4
L
T
APE
THREADING
*1
L
*5
L
T
APE
UNTHREADING
*1
L
*5
L
PB
*1
*2
*5
L
PB P
A
USE
*1
*3
*5
L
SLO
W
*1
*3
*5
L
CUE
*1
*3
*5
L
x 2
*1
*2
*5
L
REVIEW
*1
*3
*5
L
REC
*1
L
*5
L
REC P
A
USE
*1
L
*5
L
5-2.
SYSTEM CONTR
OL — SER
V
O
 PERIPHERAL CIRCUIT INTERF
A
CE (MA-318 BO
ARD IC161)
*1.
30Hz pulse.
*2.
Pulse at tape running.
*3.
Re
v
erse logic pulse of STEP PLS
.
*4.
“L” when drum rotation stops.
*5.
Unstable period pulse.
*6.
Pulse in period in proportional to tape speed.
*7.
360Hz pulse.
*8.
Pulse at tape running.
*9.
Approx. 2 msec period “H” or “L” pulse.
*10.
Approx. 1.5 msec period “H” or “L” pulse.
*11.
“L” when FWD SLO
W
, “H” when R
V
S SLO
W
.
Signal
REC CTL
CAP ST
OP
STEP PLS
PB CTL
DRM PG
DRM FG
CAP FG
CAP D
A
DRM D
A
CTL RESET
Pin No.
7
#∞
(ª
^¶
^•
^ª
&º
&£
&¢
8
I/O
O
O (O.D)
O
I
I
I
I
O
O
I/O
ST
OP
Hi-Z
L
L
H
*4
*4
H/L
*8
*10
Hi-Z
FF
Hi-Z
Hi-Z (O.D)
L
*6
*1
*7
*6
*8
*10
Hi-Z
REW
Hi-Z
Hi-Z (O.D)
L
*6
*1
*7
*6
*8
*10
Hi-Z
T
APE
THREADING
Hi-Z
Hi-Z (O.D)
L
*5
*5
*5
*8
*10
Hi-Z
T
APE
UNTHREADING
Hi-Z
Hi-Z (O.D)
L
*5
*5
*5
*8
*10
Hi-Z
PB
Hi-Z
Hi-Z (O.D)
L
*1
*1
*7
*6
*9
*10
Hi-Z
PB P
A
USE
Hi-Z
L
L
H/L
*1
*7
H/L
*8
*10
Hi-Z
SLO
W
Hi-Z
*3
*2
*2
*1
*7
*2
*8
*10
*11
CUE
Hi-Z
Hi-Z (O.D)
L
*6
*1
*7
*6
*9
*10
Hi-Z
x 2
Hi-Z
Hi-Z (O.D)
L
*6
*1
*7
*6
*8
*10
Hi-Z
REVIEW
Hi-Z
Hi-Z (O.D)
L
*6
*1
*7
*6
*9
*10
Hi-Z
REC
*1
Hi-Z (O.D)
L
*1
*1
*7
*6
*9
*10
Hi-Z
REC P
A
USE
Hi-Z
Hi-Z (O.D)
L
H
*1
*7
H/L
*8
*10
Hi-Z
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