Page 1
Page 2
FM ANT
AM ANT
Q607
X1
X0
Y0
G
SW CONT.
VDD
VSS
ABC
11 10 9
12
1
Y1
15
+B4
-B3
13
14
2
8
16
7
A.GND
Lch IN
Rch IN
+B(10V)
SUR L
SUR R
S.W
MIC
-B(-10V)
V.GND
D.GND
CS/REQ
CLK
DATA
CT.GND
SH FL1
SH FL2
SYNC
W501
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
+B5
-B3
FL1
FL2
Rch
Rch
From POWER
TRANSFORMER
Rch
BU4053BCFE2
IC201
SIGNAL SELECTOR
8
(6)
Lch
(Rch)
Z120 TUNER PACK
(RAN0005EM-2)
DET
DO
CL
+7V
GND
+15V
1
2
+B1
SD
3791110
4
+B2
CE
DI
5
ToSOUNDPROCESSOR
BLOCK DIAGRAM
TUNER L/C
TUNER Rch
MUTING
MUTING
+B4
(Q608)
Q605
Q902
MUTING
CONT.
345
SD
LC72 CE
SHSYNC
SH CK
21
94
SH CS
SH REQ
2100
LC72 CK
LC72 DO
LC72 DI/ST
C2BBFD000404
SYSTEM CONTROL / FL DRIVE
IC901
97
9596
SH DI
SH DO
6
6CH
ST/AV.
SEL/
TUNER
10
MIC DET
25
+B8
SA-EH790(E,EB,EG,EP) BLOCK DIAGRAM
93
MUTE3
Page 3
4,10
2
7
VssA/D
MPX IN
TEST
+B2
3,11
REFERENCE
VOLTAGE
ANTIALIASING
FILTER
TEST
C1BB00000527
RDS SIGNAL DEMODULATOR
1
57kHz
BPF
(SCF)
56
SMOOTHING
FILTER
CLK(4.332MHz)
IC151
CINFLOUTVREFVDDA/D
VREF
OSC/DIVIDER
XOUTXIN
89
X151
(4.332MHz)
Q606
MUTING
PLL
(57kHz)
MODE
12 13
CLOCK
RECOVERY
(1187.5kHz)
DATA
DECODER
RDS-ID
DETECT/
RAM
RST
RDCL
RDDA
IDR
Q609
(Q610)
15
14
16
MUTING
+B5
Q612
MUTING
CONT.
26
(25)
23
22
24
19
(18)
13
RSN311W64B
IC601
POWER AMP
POWER CONTROL
CIRCUIT
POWER CONTROL/
PROTECTION CIRCUIT
GND
1621
1047
-B2
D602
-B1
20
3
6
15
1
(2)
5
11
(12)
8
9
14
D601
N
+B7
+B3
Q601,602
PRO-
TECTOR
Q551,554,
555
Q553,556,
557
-B3 +B4
SIGNAL
LEVEL DET.
MOTOR
DRIVE
M
FAN MOTOR
Rch
D974
Q503,D558
SWITCH-
ING
D907
D906
AC IN
PHONES
SURROUND
(8 )
CENTER
(8 )
SPEAKERS
HF
(6 )
LF
(8 )
VR901
(VOLUME)
24 23
VR JOGA
30~37
FL901
VR JOGB
1~8G
FL DISPLAY
FL1,2
38~45,
47~50
52~71,
73~78
16
X901
(6MHz)
XC IN
P1~38
17
D933,
D934
XC OUT
79
(32.7kHz)
13 14
REGIN0
X902
XIN
80
X OUT
REGIN1
Z901
(REMOTE
SENSOR)
D954
( PLAY/REC)
29
82
REMO-
CON
TIMER
S.WOOFER)
+B8
D951
(DIGITAL
88
DD3VDD4
V
46 72
+B8
POWER
POWER
1
86
CHECK
-VP
26
51
MUTE
Vss
15
89
SA-EH790(E,EB,EG,EP) BLOCK DIAGRAM
-VP
HP SW
Vss2
SASYNC
+B8
98
E DET
VDD1
VDD2
90
18
+B9
KEY
KARAOKE
11
AC IN
RESET
12
Q901,
RESET
D904
28
27
RDS CLK
RDS DATA
S.W LED
83
D306
()
91
MUTE2
C2BBFD000404
SYSTEM CONTROL / FL DRIVE
STAND-BY
81
IC901
KEY
SWITCH
(S901~915)
KEY TU
19 20
Page 4
-B1
-B3
-B2
+B7
D702,704,
752,754,755
D701,703,
751,753,761
Q702,705
REGULATOR
/STABILIZER
T701
AC IN
SHSYNC
POWER
SASYNC
+B3
+B4
+B2
+B1
+B5
-VP
+B6
+B8
+B9
D902
D901
Q723
REGULATOR
Q711,725
REGULATOR
/STABILIZER
Q726
REGULATOR
D711
Q703,704
REGULATOR
Q701
REGULATOR
REGULATOR
Q708,709
SWITCH-
ING
Q707
D740
D746
D717~720
FL DISPLAY
(FL901)
D741~744
FL1
FL2
FP791
FP792
D705
POWER TRANSFORMER
T702
POWER
TRANSFORMER
+B6
RL702
Q791
RELAY
DRIVE
Z701
NOTES : SIGNAL LINE
F1
L701
AC IN
:AUDIOSIGNAL
:TUNERSIGNAL
( ) indicates pin No. Right channel.
SA-EH790(E,EB,EG,EP) BLOCK DIAGRAM
Page 5
Page 6
Note: This printed circuit board diagram may be modified at any time with the development of new technology.
MAIN P.C.B.
OPERATION P.C.B.
A
H
G
F
E
S915
(RDS
DISP MODE
PTY)
S914
(RDS
DISP MODE
PS)
S911
(TUNING )
S910
(TUNING )
J
R916
R913
R915
R914
J
S912
(TUNER/
R994
BAND)
R911
J
R940
R910
S908
R909
(INPUT
SELECTOR
D
R907
J
R908
S907
(SET)
C
S906
(TUNING
MODE)
(—DEMO)
S903
B
JK903
(PHONES)
2
3
6
4
1
5
7
C923
W905
R906
(FM AUTO/
MONO)
R905
J
C396
J
S905
(CLOCK/
TIMER)
C395
J
S902
S909
(6CH DISCRETE
INPUT)
R904
R903
)
D904
J
C924
R902
J
R999
R976
Q901
B
C
E
J
J
J
J
D905
C914
C916
C918
R928
D974
R946
R901
1
2
3
R929
J
J
C901
VR901
(VOLUME)
R930
R931
R932
R956
R987
R926
R936
R935
J
R954
C905
95
100
1
5
C925
R953
C912
C911
J
R952
C910
R921
J
R944
C158
C159
C157
C156
S904
( PLAY/
REC)
J
R988
L902
90
10
J
J
C917
J
R918
R919
R934
R937
C926
85
15
3
2
1
X902
3
2
1
X151
C915
R957
R991
D961
R969
J
J
D906
R959
R958
R960
J
J
J
L901
81
IC901
20
25
30
X901
R951
C908
R924
R925
R922
Z901
(SENSOR)
C154
IC151
910
R157
D954
( PLAY/
J
J
C902
J
Q902
E
C
B
R966
C903
R939
R986
J
80
J
R943
C907
R961
R962
C151
15
REC)
J
C921
75
R945
J
D151
R965
70
31
158
16
C155
R942
N
R974
R993
J
J
J
35
J
C919
C152
R941
R995
J
C928
D933
65
R950
J
L151
J
D973
R990
R997
60
40
C909
C904
R158
J
C931
D934
45
R949
C153
C160
J
J
R975
55
D907
W902B
15
R912
J
FL901
1
2
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
53
54
S913
J
J
C920
J
L152
J
W901B
L153
R151
D951
D902
14
12
10
8
6
4
2
R152
R153
14
12
10
8
6
4
2
15
13
11
J
J
R154
13
11
9
7
5
3
1
9
7
5
3
1
J
R155
DIGITAL
S.WOOFER
J
J
J
D901
C922
R996
51
50
C927
A
S901
( / )
D306
( )
(REP3337H-M)
123456789101112
B
W902A
D607
CN781
10
9
R635
8
7
6
J
5
4
3
2
1
C725
J
To SOUND PROCESSOR
J
R719
J
J
14
12
10
J
C664
J
15
13
J
11
9
8
7
6
5
4
3
2
1
J
R694
D611
J
J
R696
D737
J
Q612
B
C
E
J
R695
J
C733
J
J
J
D657
J
C705
J
J
C737
D705
W721A
10
9
8
7
6
5
4
3
2
1
J
J
R230
J
D659
J
J
D718
D754
Q723
R764
J
W901A
15
14
13
12
11
10
8
6
4
2
J
J
J
J
J
J
J
C741
W722A
4
3
2
1
D704
J
B
C
E
R763
J
9
7
5
3
1
J
J
C707
Q707
C731
J
J
J
J
C761
J
C704
R776
R708
E
C
B
D720
C714
D717
D719
D755
C702
C740
C735
J
W501
19
17
15
13
11
J
J
J
J
R738
C708
20
18
16
14
12
10
9
7
5
3
1
J
Q610
8
6
4
2
C509
C706
ECB
ECB
R739
D703
D751
J
D752
D702
J
Q609
ECB
ECB
J
R512
R510
J
J
J
D701
J
J
J
J
R511
R509
C510
D721
Q709
J
J
J
J
J
Q708
C715
J
J
1234
R564
R693
R692
R597
R598
C602
J
J
D761
C703
J
C701
CP602
R563
J
J
J
R229
C656
J
J
C601
R204
C202
8
IC201
9
10
R202
Q704
J
Q703
D753
C629
C627
5678
J
R203
15
15
16
R205
D201
ECB
C723
J
C732
C626
C628
R651
CP101
J
J
C554
D583
Q554
C655
J
J
D552
J
R561
J
D757
Q555
R591
CB
E
C201
R559
R557
R211
C552
C724
D658
D756
Q551
R796
R797
R727
R729
ECB
J
Q503
J
J
J
J
J
J
J
L606
R650
R649
R652
L605
J
J
J
1 2 3 4 5 6 8 910 1112
R570
B
C
E
D725
R572
R544
R769
R721
R638
J
Q553
R558
D582
E
D555
Q556
R556
R555
D558
R767
J
C709
J
1234567891011
ECB
D581
CB
C550
ECB
R569
C551
D551
R607
C613
R608
C614
C721
B
C
E
C619
J
J
R722
J
J
J
CP601
C559
D554
J
R623
R637
J
J
J
7
R566
R567
R560
C371
R622
C618
Q557
ECB
E602
R552
R620
R546
R547
R624
C648
C617
J
R648
E601
C640
R568
JK551
12
R551
C616
N
R627
R642
J
C642
B
C
E
R621
D602
D601
J
C620
C641
Q602
C660
C659
R615
C612
R610
J
R619
J
D553
C556
Q601
B
C
E
J
C622
R628
C647
R631
R611
C609
R691
J
J
R640
J
C630
J
N
N
Q607
R632
J
R647
L602
C555
Q606
Q605
R688
J
C611
C605
C610
J
J
L601
R639
J
C639
J
R604
R687
R614
C603
R609
J
C637
E
R601
J
J
C606
R612
J
C632
C636
C635
R605
R606
R617
R618
E
E
R603
R686
R685
E
C650
J
R684
R683
CB
CB
R602
J
J
C621
CB
CB
C607
IC601
C604
C649
J
R641
JK602
JK601
Q608
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C608
C631
SPEAKERS
LF
(8 )
Rch
HF
(6 )
LF
(8 )
Lch
HF
(6 )
(REP3337H-M)
SA-EH790(E,EB,EG,EP) OPERATION, MAIN P.C.B.
13
Page 7
H
POWER TRANSFORMER
E
(A) P.C.B.
POWER TRANSFORMER
F
AC IN P.C.B.
D
G
F
E
D
230V 50Hz . . . [E,EG,EP]
C
230-240V 50Hz . . . [EB]
C791
4
1
F1 T2A
FC1 FC2
L701
JK701
AC IN
RL702
W1
Z701
3
2
W2/W3
T702(Power transformer)
C644
C651
C646
C652
JK603
C
SR
SL
CENTER/
SURROUND
SPEAKERS
C753
J
L604
C625
C643
J
C755
C633
C645
R794
Q791
ECB
D500
Q726
ECB
C754
C758
R777
J
D743
J
D741
D742
R646
C624
R644
L603
R643
R645
REP3338A-S . . . [E,EG,EP]
REP3338B-S . . . [EB]
R773
R774
J
D744
J
C634
D746
D747
J
C759
J
R795
D740
R793
D745
R771
D711
R772
R712
CN602
1
2
3
J
4
5
6
7
8
CN601
1
2
3
4
5
6
7
8
9
10
11
12
W721B
1
2
3
4
5
6
7
8
9
10
R798
W722B
1
2
3
4
FP791
FP792
J
CN701
CN702
CN703
CN704
CN705
CN706
CN707
CN708
CN709
CN710
(REP3337H-M)
B
T701(Power transformer)
POWER SUPPLY P.C.B.
C
R725
R723
Q705
ECB
R724
D739
D738
B
C
E
D730
D758
C718
C722
R749
C717
R768
W701B
C710
R765
R720
C734
J
D723
10
9
8
7
6
5
4
3
2
1
Q701
Q702
Q711
B
C
C719
E
B
C
E
C720
B
C
Q725
E
J
(B) P.C.B.
CN711
CN713
CN712
REP3338A-S . . . [E,EG,EP]
REP3338B-S . . . [EB]
J
W1
J
W2
J
J
W3
J
J
(REP3337H-M)
A
SA-EH790(E,EB,EG,EP) AC IN, POWER TRANSFORMER(A)&(B), POWER SUPPLY P.C.B.
123456789101112
13
Page 8
A
H
G
F
E
D
C
B
OPERATION CIRCUIT
150
R997
R996
150
D973
MA4030MTA
C921
1000P
JK903
PHONES
3.5mm STEREO
FL901 (A2BB00000115)
C922
35V33
W905
1 6 8 10 11 12 13 141516 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 53 542 5 7 9
C920
50V4.7
C928
50V4.7
S909
(6CH DISCRETE
S913
(DIGITAL
2
3
6
4
5
7
1
R908
4.7K
INPUT)
R912
4.7K
)
S.WOOFER
0.1
C923
S908
S912
)
INPUT SELECTOR
(
(TUNER/ BAND)
R907
3.3K
R911
3.3K
D974
MA165TA
C396
0.047
S907
S911
)
SET
(
)
TUNING,
(
C395
0.047
R906
2.2K
R910
2.2K
S906
S910
)
TUNING MODE
(
)
(TUNING,
R905
1.8K
R909
1.8K
S905
)
FM AUTO/MONO
(
R904
1.5K
S904
R916
1.5K
)
PLAY/ REC
(
S
R
FL DISPLAY
R903
1.2K
)
DEMO
S903
-
(
R915
1.2K
ABCDEFGHIJKLMNOPQRSTUVWXYZ
ABCDEFGHI JKLMNOPQRSTU
R9021KR901
R9141KR913
820
)
S902
CLOCK/ TIMER
(
820
)
PTY
S915
(
(RDS DISP MODE)
S901
S914
)
/
(
)
PS
(
R922
R921
10K
10K
R925
1K
R924
1K
C908
C907
C904
470P
470P
0.01
R944
C924
2.2K
0.1
:AUDIO SIGNAL LINE: POSITIVE VOLTAGE LINE : NEGATIVEVOLTAGELINE
A
B
-
30.1V
C919
50V4.7
C927
50V4.7
-
30.1V
51
-
R990
100K
D306
29.3V
-
29.3V
-
29.3V
-
26.3V
-
20.5V
-
29.3V
-
29.3V
-
29.3V
-
23.5V
-
20.5V
-
23.4V
-
23.4V
-
23.7V
-
20.7V
-
29.6V
-
29.6V
-
29.6V
-
23.7V
-
26.6V
-
26.5V
5.1V
-
29.5V
-
29.5V
-
26.5V
-
17.2V
-
5.3V
-
10.3V
0.4V
0V
1.5K
R939
( )
SELS5223C
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
D954
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
X
W
V
S
T
U
V
W
X
Y
Z
D934
MA165TA
D933 MA165TA
100K
R993
C916
6.3V100
C
ABCDEFGHI JKLMNOPQRST UVWX
23.4V-20.5V-26.3V-26.3V
-
P12
-
VP
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
V
DD4
P33
P34
P35
P36
P37
P38
REGIN0
REGIN1
STAND-BY
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
1.5K
R986
)
D951
PLAY/ REC
SELS5923C
LNJ301MPUJAD
(
5.1V
P9
P11
P10
FM / AM
T 5.5ms.
F=32.7kHz
2V/2ms.DIV.
TIMER
S.W.LED
LOUNGE
0V
0V0V0V
220
R995
)
R994 100K
S.WOOFER
(DIGITAL
R999
23.4V-20.5V-26.2V
-
5.1V
P8P7P6P5P4P3P2
DD3
V
IC901
C2BBFD000404
SYSTEM CONTROL/
FL DRIVE
4V
0V
-
30V
FM / AM
2V
P-P
0V
T
10ms.
CHORUS
MUTENCPOWER
0V
0V
4.8V
100K
R960 1.5K
R958 1K
R959 47
26.2V-26.2V-26.1V-26.3V-23.5V-23.5V
29.2V
-
-
P1
FM / AM
T 5.5ms.
FM / AM
F=6MHz
FM / AM
5.2V
P-P
F=32.7kHz
FM / AM
F=32.7kHz
5V
0V
2V/2ms.DIV.
5V
DD2
Vss2
V
MUTE2NCMUTE3
0V
5.1V
5.1V
C905
1000P
2.7K
R969
27.5V-25.5V
23.5V
-
-
1G2G3G4G5G6G7G
4V
0V
-
30V
FM / AM
4.2V
P-P
F=6MHz
3.3V
P-P
1.4V
SHCS
1.9V
R936
SHDO
1.9V
R935 100
100
5.2V
P-P
SHDI
SHCK
3.3V
R934 100
5.1V
R988 1K
KEY KARAOKE
5V
0V
E DET
25.6V
27.5V
-
Â3132333435363738394041424344454647484950
REMOCON
RDS DATA
RDS CLK
HP SW
MIC DET
VR JOGA
VR JOGB
NC(GND)
SH REQ
KEY TU
V
XC OUT
XC IN
X OUT
RESET
AC IN
SEL/ TUNER
SEL TUNER
ST/ AV.6CH
LC72 CK
LC72 DI/ ST
LC72 CE
LC72 DO
CHECK
CR TIMER
SD
100
0V
R987 1K
R937 10K
8G
DD1
Vss
XIN
C901
6.3V100
19
18
17
16
15
14
13
12
R926
30
29
28
27
26
25
24
23
22
21
20
11
10
9
8
7
6
5
4
3
2
1
2.2K
R919
15K
R991
47K
-
25.6V
5.1V
2.6V
2.6V
0.6V
5.1V
0V
0V
1.4V
5.1V
5.1V
5.1V
2.3V
2.3V
2.7V
1.6V
5V
2.2V
0V
5.1V
5.1V
4.6V
0V
0V
2.5V
R976
100K
R918 10K
C903
R953 100
D905 1SS291TA
R928 47K
L902 1 H
0.01
R954
100K
4.7K
R949
100
R950
0.1
C912
18P
C911
C926
1000P
D902
1SS291TA
5V
A
B
C
D
E
R952
10M
X902
(32.7kHz)
5.1V
Q901
UN4212TA
RESET
R956
1K
R940
R929 1K
R930 1K
R932 1K
R931 1K
X901
(6MHz)
1
3
330K
R951
20P
C910
0V
C925
1000P
0.01
C915
1K
D901
1SS291TA
C914
D904
2
50V2.2
MA165TA
R957
1K
L901
10 H
C902
10V1000
M
J
H
G
A
B
D
C
EFIKLPNO Q
A
SA-EH790(E,EB,EG,EP) OPERATIONCIRCUITDIAGRAM
121110987654321
Page 9
OPERATION CIRCUIT
A
5.1V
EVQVBXFK124B
(VOLUME)
COM
C151
16V10
C158
6.3V47
560P
C154
47P
C157
VR901
22K
R962
BA
1 2 3
100
R945
IC151
C1BB00000527
RDS SIGNAL
DEMODULATOR
2.5V
VREF
1
2.5V
HPX IN
2
5.1V
DDA
V
3
VssA
4
2.5V
FL OUT
5
2.5V
CIN
6
TEST
7
X OUT
8 9
X151
(4.332MHz)
C152
330P
0.01
C917
C918
22K
R961
100
R943
DEA
IDR
RDCL
RDDA
RST
MODE
VDDD
VssD
XIN
C909
16
2.6V
15
2.6V
14
0V
13
1K
R157
12
5.1V
11
10
2.5V2.7V
47P
C156
6.3V100
1000P
R151
R153
C155
R946
1K
1K
100K
1000P
1K
R152
100K
R154
C153
1000P
L151
100 H
R158
1K
BC
: NEGATIVEVOLTAGELINE
: POSITIVE VOLTAGE LINE
Z901
B3RAD0000028
(REMOTE SENSOR)
3
2
1
C159
C160
6.3V47
1000P
L152
100 H
R942
2.2K
: AUDIO SIGNAL LINE
: TUNER SIGNAL LINE
Q902
UN411FTA
MUTING CONT.
3.3V
0V
P
A
B
C
D
E
F
G
H
I
J
K
L
MA165TA
MA165TA
M
N
O
Q
S
R
3.3V
D906
D907
R941
R974
6V
1K
1K
C931
16V10
D961
N
R975
MA4075MTA
22K
R966
3.9K
R965
3.9K
L153
R155
D151
ABC
1 H
120
MA4051MTA
W902B
-30.1V
W901B
To
SOUND
PROCESSOR
(SH-EH790)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TUNER Lch/C
TUNER Rch
Z120
RAN0005EM-2
(TUNER PACK)
T.GND
+B(1)
SD
+B(2)
DET
Rch
CE
Lch
DI
DO
CL
A.GND
Lch IN
Rch IN
+B(10V)
SUR L
SUR R
S.W
MIC
-B(-
10V)
V.GND
D.GND
CS/ REQ
CLK
DATA
CT GND
SH FL1
SH FL2
SYNC
1
2
3
4
5
6
7
8
9
10
11
MAIN CIRCUIT
B
W501
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
R51147R509
R512 47R510 47
W902A
W901A
6V
7.2V
CP101
47
10.4V
R230
1K
R229 1K
H
G
A
B
A
B
C
D
B
E
F
G
C
D
E
F
G
E
F
J
K
L
M
I
A
B
C
G
B
F
A
E
D
C
Q707
2SB1417PQTA
REGULATOR
-
30.1V
C708
0.047
C735
0.047
R597
2.2K
R598
2.2K
R211
270
-
37.3V
-
30.7V
C707
0.047
C706
35V10
Q723
2SC3940AQSTA
REGULATOR
14.7V7.2V
7.8V
C733
C740
16V10
D201
0.047
R563
MA4056MTA
R708
D721
R764
2.7K
MA4300MTA
330
4.7K
D737
2.7K
R564
0.1
C201
C737
50V100
R763
4.7K
MA4082LTA
7.6V
-
10.4V
C659
16V10
C660
16V10
R615
1 2 3 4 5 6 7 8
DD
15
16
5.7V0V0V0V0V0V
100K
R205
Q605,606
2SD2144STA
MUTING
4.7K
H
G
F
C
B
D
A
E
R631
3.9K
R632
3.9K
4.7K
R614
100K
R203
0V 0V-10.4V
14
13
C601
100K
R202
0.7V
Q605
1K
R683
1K
R684
Q609,610
2SD2144STA
A
B
C
MUTING
0V
0.01
C509
0V
0.01
C510
D705
RL1N4003N02
D718
RL1N4003N02
D717
RL1N4003N02
C731
1000P
D720
RL1N4003N02
D719
RL1N4003N02
A
B
C202
0.1
100K
R204
Vss
INHZ0Z1Y1 Y0
IC201
BU4053BCFE2
SIGNAL SELECTOR
B
A
X0X1V
12 11 10 9
16V10
4.7K
R617
C656
16V10
C655
16V10
C602
16V10
R695
470
0V
0V
-
10V
Q606
Q609
Q610
-
10V
-
10V
C741
0.1
R696
R693
1K
R692
1K
C714
47K
1000P
Q612
UN411FTA
MUTING CONT.
R603
3.3K
4.9V
R694
22K
G
C
R605
D611
MA4051MTA
H
A
D
C
4.7K
R687
1.5K
R606
C664
C725
4.7K
5.1V
-
16V10
16V47
R688
1.5K
10.2V
C715
25V4700
14.7V
SA-EH790(E,EB,EG,EP) OPERATION,MAIN CIRCUIT DIAGRAM
13 14 15 16 17 18 19 20 21 22 23 24
Page 10
MAIN CIRCUIT
B
D757
D756
MA700ATA
C648
1000P
B
A
R602
3.3K
0V
Q607
0V
0.7V
Q608
25 26 27 28 29 30 31 32 33 34 35 36
IC601
RSN311W64B
POWER AMP
MA700ATA
R601
3.3K
4.7K
R618
R685
0.7V
Q607, 608
2SD2144STA
MUTING
1K
R686
1K
C603 470P
C604 470P
R604
3.3K
L
K
M
G
0.01
C705
AB C
C607 470P
2.1V
-
0V0V0V0V
C608 470P
0.01
C617
Q708
UN4211TA
SWITCHING
(POWER)
51.4V
C649 1000P
C618
: POSITIVE VOLTAGE LINE
: NEGATIVEVOLTAGELINE
0V0V54.1V
C650 1000P
C605 1000P
R691
150
0.01
R738
3.9K
Q709
2SD2144STA
SWITCHING
(POWER)
0V 0V
10K
R776
C606 1000P
R612 56K
C610 56P
R611 56K
C609 56P
R610 150K
C612 15P
R609 150K
C611 15P
R608 56K
C614 47P
R607 56K
C613 47P
22K
R628
R648
120
R647
390
0.7V
47K
R739
-
29.7V
C622
29.4V
10V100
R572
7.6V
-
10.4V
-
0.2V
470K
R627
C616
50V0.47
R620
120K
R619 120K
R622 120K
R621 150K
R624 150K
0V
Q601 Q602
Q601,602
2SC5398RSTA
PROTECTOR
R544
10K
15K
D754
RL1N4003N02
D755
RL1N4003N02
14.7V
:AUDIO SIGNAL LINE
N
R623
120K
5.1V5.1V
0V
D558
MA165TA
Q503
2SC5398RSTA
SWITCHING
1N5402BM21
C704
35V4700
C702
35V4700
D704
0V
D753
RL1N4003N02
D761
RL1N4003N02
1SS291TA
0V
1N5402BM21
C703
35V4700
C701
35V4700
D702
1N5402BM21
0V0V0V0V
D602
D607
15K
R637
D703
D752
1N5402BM21
-
29.3V
SB360L6508
R635
2.2K
0.1
C619
D751
1N5402BM21
0.1
C761
0V28.9V
D601
SB360L6508
68K
R638
0.1
C709
D701
1N5402BM21
-
59.5V
FAN MOTOR
7.6V
Q556
2SC5398RSTA
SWITCHING
123456789101112131415181920212223242526 1617
0V0V59.5V
D658
MA165TA
D659
D657
MA165TA
MA165TA
C724
0.047
3.3K
R719
G
AB
C639
F
E
D
1000P
C640
1000P
C641
1000P
C642
1000P
C732
0.022
C647
1000P
0V
R569
10K
R796
2.2
R797
2.2
0.5V
FAN ON:0V4.7V
D554
E601
E602
MA165TA
R557
D551
R547
8.1V
7.6V
10K
MA165TA
18K
C371
R570
6.3V100
2.2M
C552
R559
0.01
4.7K
-
10.4V
0.3V
Q551
2SA1995RSTA
SIGNAL LEVEL DET.
C551
50V2.2
18K
R546
Q704
30.1V7.6V
Q703,704
2SD2137PQTA
REGULATOR
Q703
30.1V
8.1V
C723
C721
10V100
D738
MA165TA
R556
R551
0.047
14.7V
-
10.4V
10.4V
100K
18K
D730
FAN ON:0V
Q557
2SA1995RSTA
MOTOR DRIVE
R558
2.2K
D552
MA165TA
R561
100K
0.5V
C554
16V220
100K
R560
7.6V
-
10.4V
-
10.4V
R591
Q555
4.7K
2SD2144STA
SIGNAL LEVEL DET.
22K
R555
47K
R552
R729
3.9K
R727
220
D725
MA4082LTA
Q711
2SB1548PQAU
REGULATOR
R768
D739
100
MA165TA
MA4091HTA
C734
D758
50V3.3
MA165TA
10.2V
R769
27
10.4V
D583
RL1N4003N02
D582
RL1N4003N02
R767
27
CN781
1
1
W701B
14.1V
13.6V
13.6V
Q725
9.6V
2SC5398RSTA
STABILIZER
220
R765
R749
1K
0V
Q554
2SA1995RSTA
SIGNAL LEVEL DET.
D555
MA4100MTA
A
B
C
D
E
F
G
4.7
R721
1032 4 5 6 7 8 9
1032 4 5 6 7 8 9
3.9K
C722
R720
R566
68K
R568
100
D553
MA700ATA
7V
0.01
C550
Q553
2SD2144STA
MOTOR DRIVE
POWER SUPPLY CIRCUIT
C
Q702
2SB1548PQAU
REGULATOR
-
30.1V
-
10.4V
-
11V
25V100
-
11V
-
0.6V
Q705
2SA1995RSTA
STABILIZER
7.6V
0V
C720
29.2V
0.047
C559
0.01
R724
C718
C556
16V10
0V
3.9K
25V100
N
D581
JK551
7.6V
6.8V
FAN ON:1.6V
RL1N4003N02
R722
2.2
C710
0.047
Q701
2SD2374PQAU
REGULATOR
15.2V
C717
16V33
M
1
N
50V1
C555
22
R567
29.2V14.7V
C719
0.047
R725
10
D723
2
5.6K
R723
MA4150HTA
SA-EH790(E,EB,EG,EP) MAIN,POWER SUPPLYCIRCUIT DIAGRAM
Page 11
MAIN CIRCUIT
B
: POSITIVE VOLTAGE LINE
: NEGATIVEVOLTAGELINE :AUDIO SIGNAL LINE
L605
R649
B
C
A
D
F
E
G
A
B
C
10
L602
R640
10
L606
R650
10
L601
R639
10
C635
0.047
R651
0.1
C627
C637
0.047
0.1
C629
10
R652
0.1
C626
0.1
C628
10
10
R641
0.1
C621
0.1
C631
R642
C620
C630
C636
0.047
10
C632
0.047
0.1
0.1
CP601
1
2
3
4
5
6
7
8
9
10
11
12
CP602
1
2
3
4
5
6
7
8
IJ
JK601
HF(6 )
LF(8
JK602
HF(6 )
LF(8
GND
GND
C OUT
C OUT
GND
GND
GND
GND
SUR L OUT
SUR L OUT
SUR R OUT
SUR R OUT
ECO
SH SYNC
SA SYNC
D.GND
BU5V
RS13V
+B
NC
Lch
)
Rch
)
SPEAKERS
GND
GND
C OUT
C OUT
GND
GND
GND
GND
SUR L IN
SUR L IN
SURRIN
SURRIN
ECO
SH SYNC
SA SYNC
D.GND
BU5V
RS13V
NC
AC IN CIRCUIT
D
CN601
1
2
3
4
5
6
7
8
9
10
11
12
CN602
1
R712 2.2K
2
3
4
5
6
+B
7
8
C755
16V1000
A
B
C
Q726
2SC3940AQSTA
REGULATOR
0.01
C754
D711
RL1N4003N02
6.7V
C759
10V47
6V
10.7V6V
R773
1000P
1000P
1000P
JK603
CENTER(8 )
Rch
SURROUND(8 )
Lch
JK701
W2/W3
W1
SPEAKERS
230-240V 50Hz [EB]
AC IN
230V 50Hz [E,EG,EP]
H
G
F
E
D
A
L604
0V
AC9.4V
L603
R643
10
T702
24
R645
C633
C625
0.7V
R644
10
0.1
0.1
R794
C791
C
B
R795
3.9K
22K
R772
D745
MA4051MTA
D746
RL1N4003N02
R777
0.01
C758
D747
MA4068LTA
R774
18
18
D741
RL1N4003N02
D742
RL1N4003N02
1K
C753
0.01
D743
D744
D740
MA165TA
2.2K
R771
RL1N4003N02
RL1N4003N02
D500
MA165TA
Q791
2SD2144STA
RELAYDRIVE
RL702
3 1
10
47K
1000P
R646
C624
C634
C651
0.047
C652
10
C646
0.047
C644
0.1
0.1
C645
C643
0.047
T2A
Z701
F1
L701
POWER TRANSFORMER
E
(A) CIRCUIT
R793
1
CN701
CN702
W722A
W721A
S1
1
S2
2
S3
3
S4
4
S1
1
S2
2
S3
3
S4
4
AC1
5
CT
6
AC2
7
S7
8
FL2
9
FL1
10
D
E
F
G
C
D
H
F
E
AC1
AC2
FL2
FL1
W722B
S1
1
S2
2
S3
3
S4
4
S1
1
S2
2
S3
3
S4
4
5
CT
6
7
S7
8
9
10
W721B
A
B
C
D
K5G402AA0002
K5G402AA0002
FP791
FP792
A
B
C
D
R798
2.2
CN703
CN704
CN705
CN706
CN707
CN708
CN709
CN710
AC
29.2V
AC22.6V
AC22.6V
AC11.7V
AC11.7V
AC4.7V
T701
POWER TRANSFORMER
F
(B) CIRCUIT
CN711 W1
CN712
CN713
For [E,EG,EP] areas.
W3
W2
For [EB] area.
SA-EH790(E,EB,EG,EP) MAIN, AC IN, POWER TRANSFORMER(A)&(B) CIRCUIT DIAGRAM
37 38 39 40 41 42 43 44 45 46 47 48
C
B
A
Page 12
OPERATION CIRCUIT
A
H
150
R997
R996
150
D973
G
MA4030MTA
C921
1000P
F
E
D
FL901 (A2BB00000115)
C922
35V33
1 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 53 542 5 7 9
C920
50V4.7
C928
50V4.7
R908
4.7K
)
S909
S913
INPUT)
(6CH DISCRETE
)
(DIGITAL
S.WOOFER
R912
4.7K
S908
S912
INPUT SELECTOR
(
(TUNER/ BAND)
R907
3.3K
R911
3.3K
S907
S911
)
SET
(
)
TUNING,
(
R906
2.2K
R910
2.2K
S906
S910
)
TUNING MODE
(
)
(TUNING,
R905
1.8K
R909
1.8K
S905
)
FM AUTO/MONO
(
R904
1.5K
S904
R916
1.5K
)
PLAY/ REC
(
FL DISPLAY
R903
1.2K
)
DEMO
S903
-
(
R915
1.2K
ABCDEFGHIJKLMNOPQRSTUVWXYZ
ABCDEFGHI JKLMNOPQRSTU
R9021KR901
R9141KR913
820
)
S902
CLOCK/ TIMER
(
820
)
PTY
S915
(
(RDS DISP MODE)
S901
S914
)
/
(
)
PS
(
R922
R921
10K
10K
R925
1K
R924
1K
C908
C907
470P
470P
R944
2.2K
C919
50V4.7
C927
50V4.7
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
X
W
S
T
U
V
W
X
Y
Z
C
B
A
JK903
PHONES
3.5mm STEREO
W905
C923
D974
MA165TA
S
C395
0.047
R
0.1
C396
0.047
C904
0.01
C924
0.1
V
2
3
6
4
5
7
1
Page 13
:AUDIO SIGNAL LINE: POSITIVE VOLTAGE LINE : NEGATIVEVOLTAGELINE
A
B
-
30.1V
-
30.1V
51
-
R990
100K
D306
29.3V
-
29.3V
-
29.3V
-
26.3V
-
20.5V
-
29.3V
-
29.3V
-
29.3V
-
23.5V
-
20.5V
-
23.4V
-
23.4V
-
23.7V
-
20.7V
-
29.6V
-
29.6V
-
29.6V
-
23.7V
-
26.6V
-
26.5V
5.1V
-
29.5V
-
29.5V
-
26.5V
-
17.2V
-
5.3V
-
10.3V
0.4V
0V
1.5K
R939
( )
SELS5223C
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
D954
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
D934
MA165TA
D933 MA165TA
100K
R993
C916
6.3V100
C
ABCDEFGHI JKLMNOPQRST UVWX
23.4V-20.5V-26.3V-26.3V
-
P12
-
VP
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
V
DD4
P33
P34
P35
P36
P37
P38
REGIN0
REGIN1
STAND-BY
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
0V
1.5K
R986
)
D951
PLAY/ REC
SELS5923C
LNJ301MPUJAD
(
5.1V
P9
P11
P10
FM / AM
T 5.5ms.
F=32.7kHz
2V/2ms.DIV.
TIMER
S.W.LED
LOUNGE
0V
0V
0V
220
R995
)
R994 100K
S.WOOFER
(DIGITAL
R999
23.4V-20.5V-26.2V
-
5.1V
P8P7P6P5P4P3P2
DD3
V
IC901
C2BBFD000404
SYSTEM CONTROL/
FL DRIVE
4V
0V
-
30V
FM / AM
2V
P-P
T
10ms.
CHORUS
MUTENCPOWER
0V
0V
4.8V
100K
R960 1.5K
R958 1K
R959 47
26.2V-26.2V-26.1V-26.3V-23.5V-23.5V
29.2V
-
-
FM / AM
F=6MHz
FM / AM
F=32.7kHz
F=32.7kHz
5V
0V
5V
0V
DD2
Vss2
V
MUTE2NCMUTE3
0V
5.1V
5.1V
C905
1000P
2.7K
R969
23.5V
-
P1
1G2G3G4G5G6G7G
FM / AM
3.3V
P-P
1.4V
F=6MHz
SHCS
1.9V
R936
FM / AM
SHDO
SHDI
1.9V
R935 100
100
5.2V
P-P
3.3V
R934 100
-
SHCK
T 5.5ms.
5.2V
P-P
FM / AM
2V/2ms.DIV.
25.6V-27.5V
27.5V-25.5V
-
Â3132333435363738394041424344454647484950
4V
REMOCON
0V
RDS DATA
30V
RDS CLK
HP SW
MIC DET
4.2V
P-P
VR JOGA
VR JOGB
NC(GND)
SH REQ
KEY KARAOKE
KEY TU
XC OUT
X OUT
RESET
SEL/ TUNER
SEL TUNER
5V
ST/ AV.6CH
0V
LC72 CK
LC72 DI/ ST
LC72 CE
LC72 DO
CHECK
E DET
CR TIMER
SD
100
0V
5.1V
R988 1K
R987 1K
R937 10K
V
XC IN
XIN
AC IN
C901
8G
DD1
Vss
6.3V100
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
R926
9
8
7
6
5
4
3
2
1
2.2K
R919
15K
R991
47K
-
5.1V
2.6V
2.6V
0.6V
5.1V
0V
0V
1.4V
5.1V
5.1V
5.1V
2.3V
2.3V
2.7V
1.6V
5V
2.2V
0V
5.1V
5.1V
4.6V
0V
0V
2.5V
25.6V
R976
100K
R918 10K
C903
0.01
R953 100
D905 1SS291TA
R954
100K
R928 47K
L902 1 H
4.7K
R949
100
R950
0.1
C912
18P
C911
C926
1000P
D902
1SS291TA
5V
A
B
C
D
E
R952
10M
X902
(32.7kHz)
5.1V
Q901
UN4212TA
RESET
R956
1K
R940
R929 1K
R930 1K
R932 1K
R931 1K
X901
(6MHz)
1
3
330K
R951
20P
C910
0V
C925
1000P
0.01
C915
1K
D901
1SS291TA
C914
D904
2
50V2.2
MA165TA
R957
1K
L901
10 H
C902
10V1000
M
J
H
G
A
B
D
C
EFIKLPNO Q
SA-EH790(E,EB,EG,EP) OPERATIONCIRCUIT DIAGRAM
121110987654321
Page 14
OPERATION CIRCUIT
A
5.1V
EVQVBXFK124B
(VOLUME)
COM
C151
16V10
C158
6.3V47
560P
C154
47P
C157
VR901
22K
R962
BA
1 2 3
100
R945
IC151
C1BB00000527
RDS SIGNAL
DEMODULATOR
2.5V
VREF
1
2.5V
HPX IN
2
5.1V
DDA
V
3
VssA
4
2.5V
FL OUT
5
2.5V
CIN
6
TEST
7
X OUT
8 9
X151
(4.332MHz)
C152
330P
0.01
C917
C918
22K
R961
100
R943
DEA
IDR
RDCL
RDDA
RST
MODE
VDDD
VssD
XIN
C909
16
2.6V
15
2.6V
14
0V
13
1K
R157
12
5.1V
11
10
2.5V2.7V
47P
C156
6.3V100
1000P
R151
R153
C155
R946
1K
1K
100K
1000P
1K
R152
100K
R154
C153
1000P
L151
100 H
R158
1K
BC
: NEGATIVEVOLTAGELINE
: POSITIVE VOLTAGE LINE
Z901
B3RAD0000028
(REMOTE SENSOR)
3
2
1
C159
C160
6.3V47
1000P
L152
100 H
R942
2.2K
: AUDIO SIGNAL LINE
: TUNER SIGNAL LINE
Q902
UN411FTA
MUTING CONT.
3.3V
0V
P
A
B
C
D
E
F
G
H
I
J
K
L
MA165TA
MA165TA
M
N
O
Q
S
R
3.3V
D906
D907
R941
R974
6V
1K
1K
C931
16V10
D961
N
R975
MA4075MTA
22K
R966
3.9K
R965
3.9K
L153
R155
D151
ABC
1 H
120
MA4051MTA
W902B
-30.1V
W901B
To
SOUND
PROCESSOR
(SH-EH790)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TUNER Lch/C
TUNER Rch
Z120
RAN0005EM-2
(TUNER PACK)
T.GND
+B(1)
SD
+B(2)
DET
Rch
CE
Lch
DI
DO
CL
A.GND
Lch IN
Rch IN
+B(10V)
SUR L
SUR R
S.W
MIC
-B(-
10V)
V.GND
D.GND
CS/ REQ
CLK
DATA
CT GND
SH FL1
SH FL2
SYNC
1
2
3
4
5
6
7
8
9
10
11
13 14 15 16 17 18 19 20 21 22 23 24
Page 15
To
SOUND
PROCESSOR
(SH-EH790)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TUNER Lch/C
TUNER Rch
A.GND
Lch IN
Rch IN
+B(10V)
SUR L
SUR R
S.W
MIC
-B(-
10V)
V.GND
D.GND
CS/ REQ
CLK
DATA
CT GND
SH FL1
SH FL2
SYNC
MAIN CIRCUIT
B
W501
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R51147R509
R512 47R510 47
W902A
W901A
6V
7.2V
10.4V
H
G
A
47
B
A
B
C
D
B
E
F
G
C
D
E
F
G
E
F
J
K
L
M
I
A
B
C
Q707
2SB1417PQTA
REGULATOR
-
30.1V
C708
0.047
-
30.7V
C706
35V10
-
37.3V
R597
2.2K
R598
2.2K
R211
270
C707
0.047
R563
D201
2.7K
MA4056MTA
R708
D721
MA4300MTA
4.7K
R564
2.7K
C201
C737
16
0.1
50V100
7.6V
-
10.4V
C659
16V10
C660
16V10
R615
1 2 3 4 5 6 7 8
DD
15
5.7V0V0V0V0V0V
100K
R205
Q605,606
2SD2144STA
MUTING
4.7K
H
G
F
C
B
D
A
E
R631
3.9K
R632
3.9K
4.7K
R614
100K
R203
0V 0V-10.4V
14
13
C601
100K
R202
0.7V
Q605
1K
R683
1K
R684
Q609,610
2SD2144STA
C509
C510
MUTING
0V
0.01
0V
0.01
A
B
C
A
B
C202
0.1
100K
R204
Vss
INHZ0Z1Y1 Y0
IC201
BU4053BCFE2
SIGNAL SELECTOR
B
A
X0X1V
12 11 10 9
16V10
4.7K
R617
C656
16V10
C655
16V10
C602
16V10
R695
470
0V
0V
-
10V
Q606
Q609
Q610
-
10V
-
10V
R696
R693
1K
R692
1K
47K
Q612
UN411FTA
MUTING CONT.
R603
4.9V
R694
22K
3.3K
G
C
R605
D611
MA4051MTA
4.7K
R687
1.5K
R606
C664
C725
4.7K
5.1V
-
16V10
16V47
R688
1.5K
10.2V
Z120
RAN0005EM-2
(TUNER PACK)
T.GND
+B(1)
SD
+B(2)
DET
Rch
CE
Lch
DI
DO
CL
D705
C715
25V4700
RL1N4003N02
D718
RL1N4003N02
D717
RL1N4003N02
C731
1000P
D720
RL1N4003N02
D719
RL1N4003N02
14.7V
C741
H
A
C714
1000P
D
0.1
C
Q723
2SC3940AQSTA
1
2
3
4
5
6
7
8
9
10
11
CP101
1
2
3
4
5
6
7
8
9
10
11
R230
1K
R229 1K
G
B
F
A
E
D
C
REGULATOR
C735
0.047
7.8V
C740
16V10
14.7V7.2V
R763
R764
C733
0.047
4.7K
330
D737
MA4082LTA
SA-EH790(E,EB,EG,EP) OPERATION,MAIN CIRCUIT DIAGRAM
Page 16
MAIN CIRCUIT
B
D757
D756
MA700ATA
MA700ATA
IC601
RSN311W64B
POWER AMP
: POSITIVE VOLTAGE LINE
: NEGATIVEVOLTAGELINE
29.4V
-
-
51.4V
0V0V0V0V
0V0V54.1V
29.7V
:AUDIO SIGNAL LINE
7.6V
-
10.4V
-
0.2V
123456789101112131415181920212223242526 1617
-
59.5V
-
29.3V
0V0V0V0V
0V28.9V
0V0V59.5V
C648
1000P
B
A
R602
3.3K
0V
Q607
0V
0.7V
Q608
C603 470P
R601
3.3K
4.7K
R618
R685
1K
0.7V
R686
1K
Q607, 608
2SD2144STA
MUTING
C604 470P
R604
3.3K
L
K
M
G
0.01
C705
AB C
C607 470P
2.1V
C608 470P
C649 1000P
0.01
C617
0.01
C618
Q708
UN4211TA
SWITCHING
(POWER)
C650 1000P
R691
150
R738
3.9K
Q709
2SD2144STA
SWITCHING
(POWER)
0V 0V
10K
R776
C605 1000P
C606 1000P
R612 56K
C610 56P
R611 56K
C609 56P
R610 150K
C612 15P
R609 150K
C611 15P
R608 56K
C614 47P
R607 56K
C613 47P
22K
R628
R648
120
R647
390
0.7V
R739
47K
C622
10V100
R572
R627
15K
N
470K
C616
50V0.47
R620
120K
R619 120K
R622 120K
R621 150K
R624 150K
R623
120K
0V
Q601 Q602
Q601,602
2SC5398RSTA
PROTECTOR
D558
R544
MA165TA
10K
Q503
2SC5398RSTA
SWITCHING
1N5402BM21
D754
C704
35V4700
RL1N4003N02
C702
D755
35V4700
RL1N4003N02
D704
0V
5.1V5.1V
D753
RL1N4003N02
D761
RL1N4003N02
0V
1SS291TA
0V
R637
1N5402BM21
C703
35V4700
C701
35V4700
D702
1N5402BM21
D602
SB360L6508
D607
15K
D703
D752
1N5402BM21
R635
2.2K
0.1
C619
D751
1N5402BM21
0.1
C761
D601
SB360L6508
68K
R638
0.1
C709
D701
1N5402BM21
D658
MA165TA
D659
D657
MA165TA
MA165TA
G
F
E
D
14.7V
25 26 27 28 29 30 31 32 33 34 35 36
Page 17
FAN MOTOR
C555
R567
1
50V1
22
M
2
N
7.6V
N
7.6V
6.8V
FAN ON:1.6V
JK551
Q556
2SC5398RSTA
SWITCHING
123456789101112131415181920212223242526 1617
0V0V59.5V
D658
MA165TA
0V
R569
10K
0.5V
FAN ON:0V4.7V
D554
MA165TA
D551
R557
MA165TA
R547
10K
18K
C371
R570
6.3V100
2.2M
C552
R559
0.01
4.7K
-
10.4V
0.3V
Q551
2SA1995RSTA
SIGNAL LEVEL DET.
R556
C551
50V2.2
18K
R546
R551
100K
18K
-
10.4V
R591
4.7K
R552
100K
R560
7.6V
-
10.4V
Q555
2SD2144STA
SIGNAL LEVEL DET.
22K
R555
47K
D583
RL1N4003N02
D582
RL1N4003N02
FAN ON:0V
Q557
2SA1995RSTA
MOTOR DRIVE
R558
2.2K
D552
MA165TA
R561
100K
0.5V
C554
16V220
R566
68K
R568
100
0V
Q554
2SA1995RSTA
SIGNAL LEVEL DET.
D555
MA4100MTA
C550
A
D553
0.01
MA700ATA
7V
0V
Q553
2SD2144STA
MOTOR DRIVE
7.6V
C559
0.01
0V
C556
16V10
D659
29.2V
0.047
R724
C718
D581
3.9K
25V100
RL1N4003N02
R722
2.2
C710
0.047
Q701
2SD2374PQAU
REGULATOR
15.2V
C717
16V33
29.2V14.7V
R725
C719
0.047
10
D723
5.6K
R723
MA4150HTA
B
C
D
E
F
R721
R720
G
4.7
1032 4 5 6 7 8 9
1032 4 5 6 7 8 9
3.9K
POWER SUPPLY CIRCUIT
C
Q702
2SB1548PQAU
REGULATOR
-
30.1V
-
10.4V
11V
C720
-
11V
-
C722
25V100
-
0.6V
Q705
2SA1995RSTA
STABILIZER
R796
2.2
R797
D657
MA165TA
MA165TA
3.3K
R719
2.2
C724
0.047
AB
C639
1000P
C640
1000P
C641
1000P
C642
1000P
C732
0.022
C647
1000P
E601
E602
7.6V
Q704
8.1V
Q703
C721
10V100
30.1V7.6V
Q703,704
2SD2137PQTA
REGULATOR
30.1V
8.1V
C723
0.047
14.7V
-
10.4V
10.4V
D738
MA165TA
D730
R767
R769
27
27
R729
3.9K
R727
220
D725
MA4082LTA
CN781
1
1
W701B
1K
R749
Q711
2SB1548PQAU
REGULATOR
10.4V
14.1V
R768
D739
100
MA165TA
MA4091HTA
C734
D758
50V3.3
MA165TA
10.2V
13.6V
13.6V
Q725
9.6V
2SC5398RSTA
STABILIZER
220
R765
SA-EH790(E,EB,EG,EP) MAIN,POWER SUPPLYCIRCUIT DIAGRAM
Page 18
MAIN CIRCUIT
B
: POSITIVE VOLTAGE LINE
: NEGATIVEVOLTAGELINE :AUDIO SIGNAL LINE
L605
R649
B
C
A
D
F
E
G
A
B
C
10
L602
R640
10
L606
R650
10
L601
R639
10
R652
C626
C628
R641
C621
C631
10
C635
0.047
R651
0.1
C627
C637
0.047
0.1
C629
10
0.1
0.1
10
0.1
0.1
R642
C620
C630
C636
0.047
10
C632
0.047
0.1
0.1
CP601
1
2
3
4
5
6
7
8
9
10
11
12
CP602
1
2
3
4
5
6
7
8
IJ
JK601
HF(6 )
LF(8
JK602
HF(6 )
LF(8
GND
GND
C OUT
C OUT
GND
GND
GND
GND
SUR L OUT
SUR L OUT
SUR R OUT
SUR R OUT
ECO
SH SYNC
SA SYNC
D.GND
BU5V
RS13V
+B
NC
Lch
)
Rch
)
SPEAKERS
GND
GND
C OUT
C OUT
GND
GND
GND
GND
SUR L IN
SUR L IN
SURRIN
SURRIN
ECO
SH SYNC
SA SYNC
D.GND
BU5V
RS13V
NC
+B
POWER TRANSFORMER
E
(A) CIRCUIT
W722A
W721A
S1
1
S2
2
S3
3
S4
4
S1
1
S2
2
S3
3
S4
4
AC1
5
CT
6
AC2
7
S7
8
FL2
9
FL1
10
D
E
F
G
C
D
H
F
E
AC1
AC2
FL2
FL1
W722B
S1
1
S2
2
S3
3
S4
4
S1
1
S2
2
S3
3
S4
4
5
CT
6
7
S7
8
9
10
W721B
A
B
C
D
37 38 39 40 41 42 43 44 45 46 47 48
Page 19
GND
GND
C OUT
C OUT
GND
GND
GND
GND
SUR L IN
SUR L IN
SURRIN
SURRIN
ECO
SH SYNC
SA SYNC
D.GND
BU5V
RS13V
NC
AC IN CIRCUIT
D
CN601
1
2
3
4
5
6
7
8
9
10
11
12
CN602
1
R712 2.2K
2
3
4
5
6
+B
7
8
A
B
C
Q726
2SC3940AQSTA
REGULATOR
0.01
C754
D711
RL1N4003N02
6.7V
C759
10V47
10.7V6V
R773
18
C758
D747
0.01
MA4068LTA
R795
3.9K
R774
18
D745
MA4051MTA
RL1N4003N02
D746
R777
1K
R772
22K
D740
R771
A
C
B
MA165TA
2.2K
L603
R643
10
10
R645
0.1
C633
0.1
C625
Q791
2SD2144STA
RELAYDRIVE
0V
0.7V
L604
R644
10
R646
C624
C634
JK603
C651
0.047
C652
CENTER(8 )
1000P
H
SPEAKERS
Rch
10
C646
0.047
C644
1000P
0.1
0.1
C645
C643
0.047
1000P
SURROUND(8 )
Lch
G
F
AC1
AC2
FL2
FL1
POWER TRANSFORMER
E
(A) CIRCUIT
W722B
S1
1
S2
2
S3
3
S4
4
S1
1
S2
2
S3
3
S4
4
5
CT
6
7
S7
8
9
10
W721B
A
B
C
D
C755
16V1000
FP791
K5G402AA0002
FP792
K5G402AA0002
R793
A
B
C
D
R798
47K
R794
D743
D741
RL1N4003N02
RL1N4003N02
C753
0.01
D742
D744
RL1N4003N02
RL1N4003N02
D500
MA165TA
6V
AC9.4V
RL702
3 1
T702
24
C791
1000P
T2A
Z701
F1
L701
JK701
W2/W3
W1
230-240V 50Hz [EB]
AC IN
230V 50Hz [E,EG,EP]
E
D
C
POWER TRANSFORMER
F
1
CN701
CN702
AC
29.2V
AC22.6V
AC22.6V
AC11.7V
AC11.7V
AC4.7V
CN703
CN704
CN705
CN706
CN707
CN708
2.2
CN709
CN710
T701
(B) CIRCUIT
CN711 W1
CN712
CN713
W3
W2
B
For [E,EG,EP] areas.
A
For [EB] area.
SA-EH790(E,EB,EG,EP) MAIN, AC IN, POWER TRANSFORMER(A)&(B) CIRCUIT DIAGRAM
Page 20
BU4053BCFE2
C1BB00000527
1
8
C2BBFD000404 RSN311W64B UN411FTA
51
16
80
9
81
50
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
100
.
.
.
31
.
.
.
.
30
.
.
.
.
.
.
.
.
1
1
..................
26
UN4211TA
UN4212TA
E
C
B
2SB1417PQTA
2SD2137PQTA
E
C
B
2SD2144STA
B
C
E
2SA1995RSTA
2SC3940AQSTA 2SB1548PQAU
2SC5398RSTA
B
C
E
E
C
B
SB360L6508 1N5402BM21
RL1N4003N02
Ca
Cathode
A
Anode
A
Anode
Ca
Cathode
2SD2374PQAU
B
C
E
A
Anode
Ca
Cathode
1SS291TA
MA700ATA
A
MA4030MTA
MA4051MTA
MA4056MTA
MA4068LTA
MA4075MTA
MA4082LTA
MA4091HTA
MA4100MTA
MA165TA
MA4150HTA
Ca
MA4300MTA
Ca
Cathode
A
A
Anode
Anode
Ca
Cathode
LNJ301MPUJAD SELS5223C
SELS5923C
Anode
A
Cathode
Ca
Anode
A
Cathode
Ca
Page 21
FAN MOTOR
SPEAKERS
12
.
.
.
.
.
CP601
.
.
.
.
.
1
8
.
.
.
.
CP602
.
.
1
W722A
W721A
. .
1
4
. . . . . . . .
1
MAIN P.C.B.
B
10
To SOUND PROCESSOR
W501
. . . . . .
1
W901A
. . . . .
2
JK551
2
1
. . . . . . . .
2
. . . . . . . .
1
15
14
W902A
CN781
. . . . . . . .
1
CP101
20
19
. . . . . .
1
. . . . .
2
Z120
1
.
.
TUNER
.
.
PACK
.
.
.
.
.
11
15
14
10
. . . . . . . .
1
10
W701B
12
1
.
.
.
.
.
.
8
1
.
.
.
.
.
.
.
.
.
.
CN602
CN601
POWER
TRANSFORMER
E
(A) P.C.B.
POWER
TRANSFORMER
F
(B) P.C.B.
T702
(Power
transformer)
AC IN P.C.B.
D
W2/W3
. . . . . . . .
1
W721B
W722B
For [EB]
area.
W1
BROWN
W1
10
. .
1
4
T701
(Power transformer)
W3
W2
BLUE
For
[E,EG,EP]
areas.
POWER SUPPLY P.C.B.
C
W902B
15
.
14
.
.
.
.
.
.
.
.
.
.
2
1
15
.
14
.
.
.
.
W901B
.
.
.
.
.
.
2
1
OPERATION P.C.B.
A
CENTER/
SURROUND
SPEAKERS
AC IN
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