Sony SLV-GA30 / SLV-GA50 / SLV-GA66 / SLV-GA70K / SLV-GA77K / SLV-GF80 / SLV-GF90K / SLV-GF99K / SLV-P66 / SLV-PH99 Service Manual ▷ View online
2-5E
2-7. CIRCUIT BOARDS LOCATION
MJ-91
(MIC JACK, AMP)
[GA70K/GA77K/GF90K/GF99K]
(MIC JACK, AMP)
[GA70K/GA77K/GF90K/GF99K]
FR-140
(POWER,
EJECT SWITCHES)
(POWER,
EJECT SWITCHES)
JK-166
(LINE IN/OUT)
[GA66/GA77K/GF80/
GF90K/GF99K/PH99]
(LINE IN/OUT)
[GA66/GA77K/GF80/
GF90K/GF99K/PH99]
FR-142
(MODE CONTROL)
(MODE CONTROL)
FR-141
(TAPE OPERATION)
(TAPE OPERATION)
SR-35
(SURROUND)
[GA66/GA77K/GF99K]
(SURROUND)
[GA66/GA77K/GF99K]
MA-336
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
SECTION 3
BLOCK DIAGRAMS
3-1. OVERALL BLOCK DIAGRAM
3-1
3-2
MA-336 BOARD
VIDEO
LINE IN 1
CNJ801
REC P
REC/PB (RF)
SP
CH1
VIDEO
HEAD
CH1
AUDIO
HEAD
SP
CH1
VIDEO
LINE IN 2
CNJ651
BOARD
JK-166
REC/PB (RF)
V1
V2
GA66/GA77K
GF80/GF90K/GF99K/PH99 MODEL
CH2
AFM
REC/PB
AMP
IC302
AFM
REC/PB
HEAD
FULL
ERASE
HEAD
ERASE
HEAD
BIAS
OSC
OSC
BIAS
OSC
OSC
Q405,406
T401
Q401-404
EXCEPT
GA30
AF SWP
REC RF
PB RF
AUDIO
PROCESSOR
(HIFI)
IC301
L1
R1
L2
R2
AF ENV
SDA/SCL
JS904
JS905
JS907
JS903
JS902
JS910
NA OUT
NA IN
RF
R1
L1
CNJ651
BOARD
JK-166
L2
GA66/GA70K/GA77K
GF80/GF90K/GF99K/PH99
AUDIO
LINE IN 1
CNJ801
L
R
AUDIO
LINE IN 1
L
R
1
MCJ501
MIC IN
2
MCJ502
IC501
MIC 1
MIC 2
MJ-91 BOARD
GA70K/GA77K/GF90K/GF99K
IC501
KARAOKE
S501
ECHO
FR-142 BOARD
MIC
KARAOKE PON
KR SW/ECHO VR
R2
INPUT
SELECTOR
IC751
IC752
GA66/GA77K
GF90K/GF99K MODEL
GA66/GA77K MODEL
AUDIO
PROCESSOR
(NORMAL)
IC101
(2/2)
IC752
GA40K/GA70K/GA77K
GF90K/GF99K MODEL
JS701
JS702
JS908
JS909
JS906
VIDEO
REC/PB AMP
Y/C PROC.
IC101
(1/2)
CSYNC
V ENV
QVD
MESECAM
OSD
Q224,225
IC201
(1/2)
EXCEPT
GA77K:PL/GF99K:PL
VIDEO
LINE OUT1
CNJ801
BOARD
JK-166
CNJ651
EXCEPT
GA30 MODEL
AUDIO
LINE OUT2
L
R
Q801
BUFF
VIDEO
LINE OUT2
GA66/GA77K/GF99K MODEL
AUDIO
LINE OUT1
L
R
CNJ801
RFU801
VIDEO
TV/VTR
AUDIO
OUT
IN
SR-35 BOARD
IC703
VOCAL
CANCEL
SURR(B)
KARAOKE
PROC.
/SRAM
IC701
SS/
SURR(A)
IC702
IC503
IC502
GA70K/GA77K
GF90K/GF99K MODEL
GA66 MODEL
GA77K/GF99K MODEL
GA66/GA77K/GF99K MODEL
AMS
AF SWP
V DATA / V CLK
IC201
(2/2)
MESECAM
DRUM
SERVO
T REEL
FG
PH202
CAPSTAN
SERVO
SYSTEM
CONTROL
V DATA / V CLK
QVD
V ENV
CSYNC
AMS
SDA / SCL
AF ENV
AF SWP
REC P
SIGNAL
CONTROL
S REEL
FG
PH201
T
SENS
Q201
S
SENS
Q202
RESET
IC203
TE/LED
S SENS
T SENS
T REEL
S REEL
MD BLOCK
DRUM
FG/PG
FG/PG
CAM
MOTOR
DRIVE
IC202
M
DRUM
MOTOR
CAPSTAN
FG
M
CAPSTAN
MOTOR
CTL
HEAD
CAM
ENCODER
M
CAM
MOTOR
S201
FUNCTION
KEY
S601,602
LED
DRIVE
D601
EXCEPT
GA77K:PL/GF99K:PL
GA77K:PL/GF99K:PL
FR-142 BOARD
VIRTUAL
SOUND
S603
LINE
SELECT
S615
COLOR
SYSTEM
S605
NTSC
PB
S610
GA66
GA77K/GF99K
REMOTE
CONTROL
RECEIVER
IC601
D608
D603-607
D609
D610-612
D613
D614
D615,616
GF80/GF90K/GF99K/PH99
EXCEPT GA30
GA30:PL/GA40K/GA77K:PL/GF99K:PL
GA66/GA77K/GF99K MODEL
Q601
Q602
BOARD
FR-141
FR-140 BOARD
DRUM DA
DRUM FG/PG
CAP RVS
CAP FG
CTL
MODE1-4
EXCEPT
GA30 MODEL
FUNCTION
KEY
S606-609
S620
D602
LED POWER
KEY1
KEY2
SYNC REC
KEY(4)
KEY(2)
KEY(1)
FUNCTION
KEY
S611-614
PAUSE
S204
LED
DRIVE
Q207-209
Q211-213
Q233
GA77K:PL/GF99K:PL
GF80/GF90K
/GF99K/PH99
/GF99K/PH99
REC
S203
KEY4
ADJ-A
KEY3
ADJ-B
ADJ-B
RMC
GA66/GA77K/GF80/
GF90K/GF99K/PH99
EXCEPT
GA77K:PL/GF99K:PL
16
GF80/GF90K/GF99K/PH99 MODEL
EXCEPT
GA30
GA30
(SEE PAGE 4-5, 7, 9, 11)
(SEE PAGE 4-26)
(SEE PAGE 4-26)
(SEE PAGE 4-25)
(SEE PAGE 4-21)
(SEE PAGE 4-17)
(SEE PAGE 4-26)
(SEE PAGE 4-23)
(SEE PAGE 4-24)
(SEE PAGE 3-21)
GF90K
/GF99K
/GF99K
JS931
JS932
GF90K/GF99K
JS930
JS929
GA66/
GA77K
GA77K
GA50/GA70K/P66
MODEL
JS901
JS925
JS926
GF90K/GF99K
JS927
JS928
GF80/PH99
GA30/GA50/GA66/P66
GA30/GA50/
GA70K/P66
GA70K/P66
GF80/GF90K/PH99
GA30/GA50/
GA66/GF80/
P66/PH99
GA66/GF80/
P66/PH99
GA66/GF80/PH99
GA30/GA66/
GF90K/P66
GF90K/P66
GA66/GF90K
EXCEPT GF80/GF90K/
GF99K/PH99
GF99K/PH99
GA66/GA77K
EXCEPT
GA77K:PL/GF99K:PL
JS921
JS922
GA66/GA77K
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
3-2. VIDEO BLOCK DIAGRAM
3-3
3-4
BOARD
JK-166
1
CNJ801
CN651
DRUM
VIDEO
HEAD
SP
CH1
SP
CH2
CN102
89
88
86
87
SP1
5
2
1
6
VIDEO
IN 1
V IN2
MA-336 BOARD
IC101
SP2
SP1
SP2
VCA
SW30
SW29
SP
SP
REC
MUTE
79
78
81
DRUM FF
Q102
BUFF
3
2
CN101
V SW P
PB RF
FOR
CHECK
VIDEO
REC/PB AMP
Y/C PROCESSOR
N.L.
DE EMPH
ENV
DET
HPF
REC
MUTE
97
SW28
84
SW27
SW20
HPF
P
R
SW19
SEP
COMP
ACC
LPF
CTL TRAP
fH HPF
SW18
P
R
TRAP
SW24
P
R
P
R
SW7
629
TRAP
FM
AGC
P EQ
MMS
DL
SW8
VIDEO
AGC
ATT
(-10dB)
ATT
(-10dB)
ATT
(-10dB)
1
CNJ651
VIDEO
IN 2
31
30
28
CN202
1/2
2FL
VCO
4 PHASE
GEN
MAIN
CONV.1
MAIN
CONV.2
SW21
R
P
C
LPF
C
LPF
R
P
R
P
SW23
SW22
MIX
LEVEL
C.K
B.E
DL
R
DL
P
R
P
SW25
SW26
VCA
CCD
LPF
B.D
CK
N
P
G EQ
DLIM
DEMO
SUB
LPF
1M
HPF
7M
LPF
LPF
FM
MODE
MAIN EMPH
CARRIER
OFFSET W.C/DC
MAIN
DE-EMPH
SW10
P
R
SW5
Y
LPF
SW13
P
R
SW11
R
P
D.E.
N.C.
N.L.
EMPH
FBC/
ALC
ALC
SW17
R
R
P
CLP
Y NR
SW14
DO
DO REC
CLP
58
60
23
35
46
24
LPF
C
CCD
26
39
Y
CCD
42
21
44
CLOCK
SYNC
SEP
50
PB
APC
CR DET
2fSC
X-TAL
VCO/OSC
PULSE
GEN.
REC
APC
REC
AFC
AFC
76
71
73
75
X101
4.43MHz
X102
3.58MHz
Q101
Q101
16
Q104
Q103
SHARPNESS
CONT
Q217-219
19
17
18
Q204
PAL
69
54
55
6dB
AMP
C
SQUELCH
6dB
AMP
CLEAR
SYNC
SQUELCH
VIDEO
ALC
52
51
63
62
SERIAL
CONT
64
KILL
Q215,216
BUFF
2fSC
AMP
Q205,214
43
BOARD
JK-166
3
CNJ801
VIDEO
OUT 1
OUT 1
V OUT2
3
CNJ652
VIDEO
OUT 2
OUT 2
CN651
CN202
53
52
OSD
45
IC201
(1/3)
Q801
BUFF
Q224,225
AUDIO
2
TV/VTR
4
VIDEO
1
RFU801
IN
OUT
16
RF SW P
IC201
24
TO/FROM
SYSCON
BLOCK
C SYNC
IC201
54
V ENV
IC201
13
MESECAM
IC201
80
QVD
IC201
27
TO/FROM
SYSCON
BLOCK
V DATA
IC201
100
V CLOCK
IC201
99
KILL
IC201
19
SHARP 1
IC201
20
SHARP 2
IC201
29
SHAPNESS
IC201
94
NTSC
IC201
18
RFU AUDIO
FROM
AUDIO
BLOCK
EXCEPT
GA77K:PL/
GF99K:PL
GF99K:PL
GA66/GA77K/GF99K
MODEL
GA66/GA77K
GF80/GF90K/GF99K/PH99
MODEL
EXCEPT GA77K:PL/GF99K:PL MODEL
CN101
3
REC/PB
CN101
2
PB
IC101
*§, *ª
REC
IC101
!•
REC/PB
IC101
@¡
REC/PB
IC101
#∞
REC/PB
IC101
#ª
REC/PB
IC101
$¢
REC/PB
IC101
$§
REC/PB
IC101
$™
REC/PB
5Vp-p
25Hz
0.1V/div 0.2
µ
sec/div
0.5V/div 0.1
µ
sec/div
REC:0.4Vp-p
PB:0.48Vp-p
REC:0.41Vp-p
PB:0.6Vp-p
REC:0.4Vp-p
PB:0.5Vp-p
REC:0.28Vp-p
PB:0.35Vp-p
REC:2.2Vp-p
PB:2.3Vp-p
REC:0.5Vp-p
PB:0.6Vp-p
REC:0.35Vp-p
PB:0.38Vp-p
REC:0.28Vp-p
PB:0.35Vp-p
0.4Vp-p
0.58Vp-p
H
H
H
H
H
H
0.45Vp-p
8.8671MHz
IC101
%º
REC/PB
IC101
%™
REC/PB
IC101
%∞
PB
IC101
%•
REC/PB
IC101
^º
REC/PB
IC101
^ª
REC/PB
IC101
&¡
REC/PB
IC101
&£
REC/PB
IC101
&∞
REC/PB
4.6Vp-p
H
H
H
H
H
8.667MHz
0.46Vp-p
0.1Vp-p
3.579545MHz
4.433619MHz
4.433619MHz
0.66Vp-p
0.54Vp-p
(SEE PAGE 4-5)
(SEE PAGE
4-26)
4-26)
(SEE PAGE 4-26)
(SEE PAGE 3-8)
(SEE PAGE 3-5)
(SEE PAGE
3-5)
3-5)
IC201
$£$∞
REC/PB
2Vp-p
H
IC201
%£
REC/PB
2.6Vp-p
8.86716MHz
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
3-5
3-6
DRUM MOTOR
OUTPUT
HALL
DEVICE
CAPSTAN MOTOR
M901
M902
HALL
DEVICE
U+
OUTPUT
MATRIX
M
VCC
7
1
5
3
PG
FG
CAPSTAN
FG
U-
V+
V-
W+
W-
U
LIMITER
D5V
V
W
VM
VCC
TL
1
6
5
2
3
7
1
6
5
2
3
7
CN205
D5V
CAP VS
CAP RVS
CAP FG
7
1
5
3
CN204
M12V
D5V
D VS
D PG
D FG
6
CN401
5
CTL
HEAD
CN203
M
CAM
MOTOR
CAM
ENCODER
MECHA
POSITION
(
(
MODE1
MODE2
MODE3
MODE4
IC201
SERVO CONTROL
(2/3)
DRUM DA
26
DRUM PG
39
DRUM FG
38
CAP QR
96
CAP VS
25
CAP RVS
55
CAP FG
40
CTL IN+
CAM
MOTOR DRIVE
IC202
CAM+
10
CAM-
2
4
IN2
IC201
SYSTEM CONTROL
(3/3)
S REEL FG
PH202
T REEL
FG
LED
DRIVE
Q203
T REEL FG
10M IN
M12V
PH201
S REEL
FG
T/S LED
D203
T SENS
S SENS
T/E LED
Q201
TAKE END
SENSOR
M12V
Q202
SUPPLY END
SENSOR
REC PRF
10M OUT
X201
10MHz
REC
PROOF
S202
CAM
MODE1
MODE2
MODE3
MODE4
16
4
4
CTL REF
CTL IN-
RESET 8
IC203
12V
RESET
D5V
D5V
CAP PWM
66
16
7
1
3
5V
REG
IC204
88
89
12
11
74
1
72
73
31
32
95
62
63
64
65
3
1
A SWP ADJ
9
V SWP ADJ
8
5V
5V
A SWP
ADJ
RV201
V SWP
ADJ
RV202
GF80/GF90K/GF99K
/PH99
67
POWER LED
V ENV
13
RF SWP
24
TV/VTR
80
QVD
27
V DATA
100
C SYNC
54
V CLK
99
KILL IN
19
SHARP 2
29
SHARP 1
20
SHARPNESS VR
94
NTSC
18
AU MUTE
21
AMS
58
PB
90
LINE 1
91
AF CLK
97
AF DATA
98
A ENV
14
AF SWP
23
REC P
17
RF SWP
IC101 81
V ENV
IC101 84
MESECAM DET
,Q220 C
QVD
IC101 51
C SYNC
IC101 50
V DATA
IC101 63
V CLOCK
IC101 62
KILL
IC101 64
SHARP 1
Q217
B
SHARP 2
Q218
B
SHARPNESS
IC101 17
NTSC
,Q204 B
AMS
Q581
C
A MUTE
IC101 99
PB
Q751
B
LINE 1
Q752
B
SDA
IC301 41
SCL
IC301 42
AF ENV
IC301 39
REC P
IC302 5
AF SWP
,IC301 40
IC302 1
TO/FROM
VIDEO
BLOCK
TO/FROM
AUDIO
BLOCK
POWER ON
IC502 4
TO
KARAOKE
BLOCK
3
KEY 1
4
KEY 2
4
1
CN207
LED POWER
LED POWER
KEY 1
4
1
CN605
ON
STANDBY
EJECT
S602
S601
3
3
KEY (1)
POWER
ON
Q602
POWER
ON
Q601
D601
EXCEPT
GA77K:PL/GF99K:PL
MODEL
FR-140 BOARD
MA-336 BOARD
FR-141 BOARD
1
2
KEY (1)
CN210
TEST
STOP
S606
PLAY
S607
FF
S608
SYNC
REC
S620
REW
S609
D602
+5V
EXCEPT GA30
CN604
1
3
4
5
1
3
4
5
CN208
KEY (2)
KEY (4)
SYNC REC
KEY 2
86
SYNC REC
EXCEPT GA30
LED
DRIVE
Q210
11
CN601
FR-142 BOARD
12
VIRTUAL
SOUND
S603
13
LINE 1
LINE 2
AUTO
PAL/MESECAM
NTSC
NTSC 3.58
NTSC 4.43
ON PAL TV
14
LINE
SELECT
S615
COLOR
SYSTEM
S605
NTSC
PB
S610
GA66/GA77K/GF80/GF90K/GF99K/PH99
EXCEPT GA77K:PL/GF99K:PL
GA66 /GA77K/GF99K
7
CN602
5
AUTO/
MANUAL
S611
ON SCREEN
DISPLAY
S612
SP
SP/EP
EP
S614
PICTURE
CONTROL
S613
6
5
4
3
2
KEY (4)
KEY 4
KEY (1)
KEY (2)
CN208
PAUSE
S204
6
KEY 4
5
KEY 3
87
SHARP LED
REC
S203
LED
DRIVE
Q207-209
Q211-213
Q211-213
Q233
MODE1
MODE2
MODE3
MODE4
92
ADJ-A
93
ADJ-B
56
TRACK LED
84
L LED
83
HF LED
85
R LED
81
REC LED
57
C IN LED
79
DNS 5 LED
REMOTE
CONTROL
RECEIVER
2
1
IC601
13
+5V
82
REMOCON
2
3
10
11
12
9
8
7
5
6
13
2
3
10
11
12
9
8
CN201
CN206
KEY 3
ADJ-A
ADJ-B
REMOCON
SHARPNESS LED
TRACKING LED
L LED
HIFI LED
R LED
DNS 5 LED
DNS 4 LED
14
CN601
CN201
13
15
12
11
9
8
2
3
1
4
5
7
8
78
DNS 4 LED
77
DNS 3 LED
76
DNS 2 LED
75
DNS 1 LED
REC LED
CASSETTE LED
TV/VTR LED
DNS 3 LED
DNS 2 LED
SURROUND LED
DNS 1 LED
7
DEST 2
61
SUR CONT 3
60
SUR CONT 2
59
SUR CONT 1
GA66/GA77K/GF99K
LED
DRIVE
Q221,222,226
TV
OTHER
TV
SYSTEM
S801
6
5
4
SR-C1
CN702
SR-35 BOARD
TO
SURROUND
BLOCK
CN701
SR-C2
SR-C3
D608
D603-607
D609
D610-612
D613
D614
D615,616
GF80/GF90K/GF99K/PH99
EXCEPT GA30
GA77K:PL/GF99K:PL
GA66/GA77K/GF99K
EXCEPT GA30
GF80/GF90K/GF99K/PH99 MODEL
GA77K:PL/GF99K:PL MODEL
RFU801 4
IC101 18
GA70K/GA77K
GF90K/GF99K MODEL
(SEE PAGE 4-7)
(SEE PAGE 3-10)
(SEE PAGE 4-23)
(SEE PAGE 4-24)
(SEE PAGE 4-21)
(SEE PAGE 3-9)
(SEE PAGE 3-8)
(SEE PAGE 3-4)
SW
Q250, 251
CN201
KR SW/
ECHO VR
ECHO VR
FROM
KARAOKE
BLOCK
KARAOKE
BLOCK
7
(SEE PAGE 3-10)
GF90K/GF99K
IC201
@£@¢
REC/PB
5Vp-p
25Hz
IC201
@∞
REC/PB
5Vp-p
1.18MHz
IC201
@§
REC/PB
5Vp-p
0.88MHz
IC201
#¡
REC
3.1Vp-p
25Hz
IC201
#™
REC
3.1Vp-p
25Hz
IC201
#•
REC/PB
4Vp-p
600Hz
IC201
#ª
REC/PB
4.1Vp-p
25Hz
IC201
$º
REC/PB
758Hz
4.6Vp-p
IC201
%¢
REC/PB
H
4Vp-p
IC201
&™
REC/PB
3.2Vp-p
10MHz
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