SGND
11
10
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
P
ASS-
P
ASS+
TTLP
VD
RL
Y
SENS-
SENS+
IHDET
DISP
DC
OVERDET
GND
AC
HOUT
-
HOUT+
VH-
VH+
IC601
RSN310R36-P
POWER AMP
C642
820P
C603
820P
C604
820P
C619
25V100
C617
100V2.2
C621
100V33
R624
4.7
R605
220
R647
220
R606
220
R603
1.8K
R642
820
R604
1.8K
C602
63V33
C641
63V33
C601
63V33
D617
RVD1SS133TA
R638
150K
R637
150K
C646
0.1
R632
180K
R631
150K
R630
120K
D605
RVD1SS133T
A
D602
RK306LFU1
D601
RK306LFU1
R608
56K
C608
18P
R643
56K
C643
18P
R645
47
C644
0.047
B
R644
10
C
R609
47
R61
1
10
C61
1
0.047
C625
50V10
R625
1W100
R627
1W100
R628
1W100
R626
1W100
C626
50V10
A
R610
47
R612
10
C612
0.047
C607
18P
R607
56K
N
C622
100V33
R636
47K
C618
1000P
R634
470K
R629
1K
C
A
B
C
B
R635
150K
C615
0.01
R728
680K
10K
1K
10K
10K
H
G
F
E
L603
0.7
H
L602
0.7
H
L604
0.7
H
N
N
D
A
A
B
Q775
RVTDTA114EST
OVER LOAD DET.
Q774
RVTDTA113ZST
OVER LOAD DET.
Q777,778
2SA933SSTA
MOTOR DRIVE
Q776
2SC1740SSTA
MOTOR DRIVE
Q773
2SB621AQSTA
POWER SUPPLY
C774
6.3V100
R782
39
D774
RB721Q40T77
C775
16V10
R776
22
C776
50V1
D773
MTZJ8R2CT
A
D768
MTZJ3R3A
T
A
Q780
2SA933SSTA
MOTOR DRIVE
C781
0.01
R766
47K
D769
RVD1SS133TA
R767
150K
R768
1K
C777
16V220
R784
150K
R786
150K
R773
10K
C780
16V470
R775
330
C773
0.1
R779
10K
R778
4.7K
R777
150K
C778
16V100
C779
16V100
R780
3.9
Q781
2SC1740SSTA
MOTOR DRIVE
R769
10K
D770
RVD1SS133TA
Q777
Q778
D771
R771
100K
C771
50V4.7
C772
50V4.7
R774
1.5M
C705
5600
C706
5600
D725
D721
D723
D727
D726
D722
D724
D728
C722
0.1
C721
0.1
D721-728
1N5402BM21
D702
D704
D703
D701
C702
0.1
C703
7500
C704
7500
D701-704
1N5402BM21
G
D
E
R770
100K
D772
C616
50V47
R633
47K
Q772
2SC1740SSTA
MOTOR DRIVE
MAIN CIRCUIT
SCHEMATIC DIAGRAM-14
Q724,725
RVTDTC114YST
SWITCHING
47K
10K
Q723
RVTDTA114YST
SWITCHING
47K
10K
Q724
Q725
R720
10K
D731
RVD1SS133T
A
D732
RVD1SS133TA
R723
1
R724
1
47K
10K
D771,772
RB721Q40T77
-16.2V
-66.7V
-66.7V
66.8V
0V
0V
0V
0V
-52.4V
0V
-26.2V -8.4V
-16.4V 14V
0V
-1.5V
0V
-12.3V
0V
0V
-31.2V 31.1V
0V
-66.7V 66.8V
0V
-12.1V
0V
0V
0V
FAN OFF:-16.2V
FAN ON:-1.4V
FAN ON:-1.8V
FAN OFF:-16.2V
FAN OFF:-0.6V
FAN ON:-7.1V
FAN OFF:
0V
FAN ON:
-1.4V
FAN ON:-1.5V
FAN OFF:0V
FAN OFF:0V
FAN ON:-10.1V
FAN ON:0V
FAN OFF:-9.4V
-16.2V
FAN OFF
:0V
FAN ON
:-14.5V
-16.2V
FAN OFF:-16.2V
FAN ON:-14V
FAN OFF:-16.2V
FAN ON:-13.8V
FAN ON:-14.5V
FAN OFF:0V
-16.2V
FAN OFF:-16.2V
FAN ON:-4.6V
FAN OFF:0V
FAN ON:-0.6V
FAN OFF:0V
FAN ON:-0.6V
FAN ON:-1.1V
FAN OFF:0V
FAN ON:-4.6V
FAN OFF:-16.2V
52.5V
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
:FM/ AM SIGNAL LINE
:CENTER SP SIGNAL LINE
-31.5V
31.4V
31.4V
-31.5V
66.8V
31.4V
31.1V
0V
-31.4V
-31.5V
5.5V
0V
0V
Summary of Contents for SA-G90
Page 10: ... Check the FL P C B as shown above Check the surround P C B as shown below 10 ...
Page 13: ... Check the main P C B as shown below 13 ...
Page 15: ...15 ...
Page 30: ...L1901 RLQB101KTA Y CHOKE COIL 1 M 30 ...
Page 34: ...R451 ERDS2TJ224T 220K 1 4W 1 M 34 ...
Page 36: ...R532 ERDS2TJ332T 3 3K 1 4W 1 M 36 ...
Page 39: ...R706 ERDS2TJ102T 1K 1 4W 1 M 39 ...
Page 53: ...C1911 ECBT1H102KB5 1000P 50V 1 M 14 Cabinet Parts Location 53 ...
Page 54: ...15 Packaging 54 ...
Page 55: ...55 ...