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SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
3-4. AUDIO BLOCK DIAGRAM
3-7
3-8
BOARD
JK-166
4
CN651
L2 R
CN202
R
L
MA-336 BOARD
3
8
4
CN260
DRUM
AUDIO
AUDIO
HEAD
CH1
CH2
17
IC302
AFM
REC/PB
AMP
18
24
20
AGC
DET
DET
11
16
VCC
3
9
1
H SW
5
REC
CA
HA
HA
REC ON
EP
SP
AGC
AMP
PB ON
VCC
1
CN101
HF ADJ
FOR
CHECK
36
37
AGC
AMP
VCO
HF
LPF
PNR
L
MUTE
OUTPUT
INPUT SEL
LEVEL
DET
VCO
HF
LPF
PNR
L
15
14
MUTE
16
17
MUTE
12
13
NORMAL IN
NORMAL OUT
21
20
FM PB
FM REC
IC301
AUDIO
PROCESSOR
(HIFI)
39
5
6
3
4
SCL
42
SDA
41
AF SWP
40
AGC
R
L
CNJ801
AUDIO
LINE IN 1
R
L
6
L2 L
4
6
BIAS
ERASE
OSC
Q401-404
CN401
1
2
4
ERASE
AUDIO
REC/PB
HEAD
NOMAL
AUDIO
1
FULL
HEAD
CN402
HEAD
SEL
16
5
CNJ651
AUDIO
LINE IN 2
GF80/GF90K/GF99K/PH99 MODEL
EXCEPT
GA30 MODEL
GA66/GA77K/GF80
/GF90K/GF99KPH99
MODEL
ERASE
HEAD
BIAS
SWITCH
Q405,406
T401
EXCEPT
GA30 MODEL
12
14
15
11
13
1
5
2
4
3
IC751
INPUT SEL
10
9
5
3
7
1
IC752
Q753
BUFF
Q751
SW
Q752
SW
GA66/GA77K MODEL
C759
C760
9
2
P
R
SP ON
VCA
11
REC
EQ
99
4
100
IC101
AUDIO
PROCESSOR
(NORMAL)
(2/2)
JS904
JS907
JS910
JS902
JS903
BOARD
JK-166
9
CN202
L2 R
CN651
R
L
11
L2 L
9
11
CNJ652
AUDIO
LINE OUT2
GA66/GA77K/GF99K
MODEL
JS905
JS906
JS908
JS909
CNJ801
AUDIO
LINE OUT2
EXCEPT
GA30 MODEL
1
CN702
RFU AUDIO
RFU801 2
MIC RF
Q502
E
LINE OUT R IC502
2
LINE OUT L IC502
1
LINE IN L
IC502
5
LINE IN R
IC502
6
TO/FROM
KARAOKE
KARAOKE
BLOCK
SR-35 BOARD
TO/FROM
SURROUND
BLOCK
CN701
FROM
VIDEO
VIDEO
BLOCK
2
SR-L OUT
SR-L IN
9
10
SR-R OUT
SR-R IN
Q410
BUFF
MUTE
IC581
AMS
Q581
BUFF
TO/FROM
SYSCON
BLOCK
AMS
IC201
58
A MUTE
IC201
21
PB
IC201
90
LINE 1
IC201
91
SDA
IC201
98
SCL
IC201
97
AF ENV
IC201
14
AF SW P
IC201
23
REC P
IC201
17
GA70K/GA77K
GF90K/GF99K MODEL
GA70K/GA77K
GF90K/GF99K MODEL
GA66/GA77K/GF99K MODEL
JS921
JS922
JS901
GA50/GA70K
/P66 MODEL
GA66/GA77K
MODEL
GF90K/GF99K MODEL
JS926
JS925
JS928
JS927
JS932
JS931
GA66/GA77K
EXCEPT
GF80/GF90K/GF99K/PH99
GA30/GA50/
GA66/GF80/
P66/PH99
GA66/GF80
/PH99
GF80/GF90K
/PH99
GA30
/GA50
/GA66
/GA66
/GF90K
/P66
GA66
/GF90K
GF90K/GF99K
GA30
/GA50
/GA70K
/P66
GA30
/GA50
/GA66
/GA66
/P66
GF80/PH99
JS929
JS930
GA66/GA77K
C761
C762
GF90K/GF99K
GA66/GA77KGF90K/GF99K MODEL
(SEE PAGE 4-9)
(SEE PAGE 4-26)
(SEE
PAGE 3-5)
PAGE 3-5)
(SEE PAGE 3-9, 10)
(SEE
PAGE
3-10)
(SEE PAGE 3-4)
(SEE PAGE 4-26)
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
3-5. KARAOKE BLOCK DIAGRAM
3-9
3-10
1
MCJ501
MIC IN
IC501
12
9
2
MCJ502
IC501
3
6
1
3
CN501
1
3
MIC2
MIC1
CN502
MIC 1
RV502
MIC 2
RV503
2
CN502
MJ-91 BOARD
MIC MIX
2
CN501
IC501
7
8
2
CN502
PON
ON
OFF
JS511
JS510
D501
D502
D503
KARAOKE
S501
ECHO
RV501
GA40K/GA70K
MODEL
GA40K/GA70K/GA77K
GF90K/GF99K MODEL
GA70K/GA77K
GF90K/GF99K
MODEL
FR-142 BOARD
10
9
CN601
2
6
7
CN209
CN201
MIC OUT
KARAOKE PON
KR SW/ECHO VR
VR
VOCUL
CUT
MA-336 BOARD
IC502
KARAOKE PROCESS
31
26
11
6
ALC
VR
COMPRESS
EXPAND
LPF
VR
SW
OUTPUT SW
4
5
15
20
16
19
17
18
1
2
4
2
10
10
X501
455kHz
IC503
SRAM
Q502
LINE OUT R CNJ801 R
MIC RFU
RFU801 2
LINE OUT L CNJ801 L
Q206
BUFF
LINE IN L
CN702
1
LED POWER IC201
67
LINE IN R
CN702
2
TO/FROM
AUDIO
BLOCK
FROM
SYSCON
BLOCK
7
CN702
GA40K/GA70K/GA77K
GF90K/GF99K MODEL
7
CN701
SR-35 BOARD
IC701
VOCAL CANSEL
JS702
9
6
15
R
L-R
L
L+R
SW1
LOGIC
SW2
9
10
13
3
JS701
GA66 MODEL ONLY
GA77K/GF99K MODEL
ATT
ATT
Q701
ATT
ATT
Q702
Q713
22
12
11
1
8
9
L CH
R CH
SW
CONT
IC702
SS/SURROUND-A
ATT
ATT
Q705
ATT
ATT
Q704
PROCESS
VIRTUAL
AUDIO
QXPANDER
21
1
12
13
20
IC703
SURROUND-B
1
MA-336 BOARD
TO
AUDIO
BLOCK
CN702
SR L OUT
SR R OUT
2
CN701
MA-336 BOARD
FROM
AUDIO
BLOCK
CN702
SR-C 1
AUDIO PON
SR L IN
SR R IN
MA-336 BOARD
FROM
SYSCON
BLOCK
CN702
6
5
4
SR-C 2
SR-C 3
GA66/GA77K/GF99K
MODEL
MODEL
16
(SEE PAGE 4-25)
(SEE PAGE 4-21)
(SEE PAGE 4-11)
(SEE PAGE 4-17)
(SEE PAGE
3-8)
3-8)
(SEE PAGE 3-5, 6)
(SEE PAGE 3-8)
(SEE PAGE 3-8)
(SEE PAGE 3-6)
KR SW/
ECHO VR Q250 B
ECHO VR Q250 B
GF90K/GF99K
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
3-6. POWER SUPPLY BLOCK DIAGRAM
3-11
3-12E
MA-336 BOARD
1
2
DC/DC
CONV.
CONV.
T951
CN951 F951
2A
LF951
D951
AC
IN
L953
L952
PS002
L802
BST +B
5
MOD +B
3
RFU801
IC101
REC/PB AMP
Y/C PROC.
AUDIO PROC.
RP VCC
90
L109
Y VCC
12
L105
C VCC
61
VCC
66
L106
CCD VCC
36
CCD VCC
38
CCD VCC
40
CCD VCC
41
CCD VCC
43
L104
5V
REG
IC204
3
1
VCC
7
IC203
RESET
IC201
OSD/
SERVO/SYSTEM CONT
MODE CONT
AN5V
15
VCC
22
CHROMA
SWITCH
Q220,224,225
V+
8
IC581
AMS
GA70K/GA77K
GF90K/GF99K MODEL
CAPSTAN
MOTOR
DRUM
MOTOR
CAM
MOTOR
7
1
CN205
4
7
CN204
M12V
D5V
M12V
D5V
3
1
CN203
CAM+
CAM-
CAM
MOTOR DRIVE
VCC1
8
VCC2
9
IC202
T/S
REEL
PH201,202
T/S
SENS
Q201,202
LED
DRIVE
Q601,602
1
CN605
FR-140 BOARD
5
CN207
D5V
6
CN604
FR-141 BOARD
6
CN208
D5V
D602
PS001
VCC
18
IC503
SRAM
VCC
23
IC502
KARA PROC.
9V
REG
Q961
BIAS
SW
Q405,406
BIAS
OSC
T401
Q401-404
EXCEPT
GA30 MODEL
GA70K/GA77K
GF90K/GF99K MODEL
VDD
16
IC751
INPUT SEL
VCC
8
IC752
BUFFER
GA66/GA77K
GF90K/GF99K MODEL
GA66/GA77K MODEL
L207
2FSC
AMP
Q205,214
1
CN502
MJ-91 BOARD
1
CN209
A9V
IC501
MIC AMP
GA70K/GA77K/GF90K/GF99K MODEL
5
VCC
1
CN602
1
CN206
D5V
5V
2
IC601
REMCON
6
CN601
10
CN201
D12V
FR-142 BOARD
L301
VCC
14
AFM
REC/PB AMP
IC302
L302
+12V
35
HIFI
AUDIO PROC.
IC301
GF80/GF90K/GF99K/PH99 MODEL
VCC
1
IC701
VOCAL CANCEL
3
CN701
3
CN702
A9V
VCC
13
IC702
SS/SURA(A)
VCC
22
IC703
SURR(B)
L701
SR-35 BOARD
GA66/GA77K/GF99K MODEL
GA77K/GF99K MODEL
1
16
(SEE PAGE 4-5, 7, 9, 10)
(SEE PAGE 4-23)
(SEE PAGE 4-24)
(SEE PAGE 4-21)
(SEE PAGE 4-17)
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
SECTION 4
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• For Printed Wiring Boards.
•
•
b
: Pattern from the side which enables seeing.
Caution :
Pattern face side:
Pattern face side:
Parts on the pattern face side
(Conductor Side)
seen from the pattern face are
indicated.
indicated.
Pattern face side:
parts on the parts face side seen
(Component Side) from the parts face are indicated.
• For Schematic Diagrams.
• Caution when replacing chip parts.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, because it is damaged by the heat.
Be careful not to heat the minus side of tantalum
capacitor, because it is damaged by the heat.
• All resistor are in ohms, 1/4 W unless otherwise noted.
Chip resistor are 1/10 W unless otherwise noted.
k
k
Ω
: 1000
Ω
, M
Ω
, : 1000 k
Ω
.
• All capacitors are in
µ
F unless otherwise noted. pF :
µ
µ
F. 50 V or less are not indicated except for electrolytics
and tantalums.
•
C
: panel designation.
•
: internal component.
•
U
: B+ Line.
•
V
: B– Line.
• Circled numbers refer to waveforms.
• Readings are taken with a PAL color-bar signal input.
• Voltage are dc between ground and measurement points.
• Readings are taken with a digital multimeter (DC10M
• Readings are taken with a PAL color-bar signal input.
• Voltage are dc between ground and measurement points.
• Readings are taken with a digital multimeter (DC10M
Ω
).
• Voltage variations may be noted due to normal production
tolerances.
When indicating parts by reference number, please
include the board name.
include the board name.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
1
CN101
3
REC/PB
2
CN101
2
PB
3
IC101
*§, *ª
REC
4
IC101
!£
REC
4
IC101
!£
PB
5
IC101
!¢
REC
5
IC101
!¢
PB
6
IC101
!•
REC/PB
7
IC101
@¡
REC/PB
8
IC101
#∞
REC/PB
9
IC101
#ª
REC/PB
!¡
IC101
$¢
REC/PB
!™
IC101
$§
REC/PB
!º
IC101
$™
REC/PB
5Vp-p
25Hz
0.1V/div 0.2
µ
sec/div
0.5V/div 0.1
µ
sec/div
1.1Vp-p
1Vp-p
H
H
H
4.1Vp-p
0.25Vp-p
H
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
^§
REC/PB
!ª
IC101
^ª
REC/PB
@º
IC101
&¡
REC/PB
@¡
IC101
&£
REC/PB
@™
IC101
&∞
REC/PB
4.6Vp-p
H
H
H
H
H
0.45Vp-p
8.667MHz
7.8MHz
0.46Vp-p
0.1Vp-p
3.579545MHz
4.433619MHz
4.433619MHz
0.66Vp-p
0.54Vp-p
MA-336
BOARD (VIDEO BLOCK)
4-1
4-2
Abbreviation
SG: Gulf Model
SG: Gulf Model
EE: East European Model
PS: Pan Asia Model
PL: Philippine Model
TK: Thai Model
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