-
Z101 TUNER UNIT (RAN0005EM-2)
FM ANT
+B(FM)
RF AMP
FM
MIXER
FM OSC
+B(FM)
+B(FM)
24
1
AM
OSC
OUT
FM IF
IN
BUFFER
BUFEER
Vcc
9
+B2
IFT
AMP
3
REG
ALC
LEVEL
FM IF
DET
AM
OSC
FM IF
AMP
CURVE
FM
DET
FMDET
AFC
S-
AM ANT
Q607
MUTING
MUTING
+B4
(Q608)
Q605
Q902
MUTING
CONT.
17
GND
5
IN
PILOT
AM
OSC
COIL
+B2
16
MPX
PHASE
DET
VCO
+B2
FM / AM I F AMP,
DET /AM OSC,
MIX / FM MPX
(LA1833MN)
FM:ON
15
IN
OUT
PILOT
FF
STEREO
SWITCH
FM/AM
12
13
DECODER
FFFF
MONO
Lch
ST
7
14
Rch
PILOT
CANCEL
PILOT
DET
Rch
SD
DET
TUNER L/C
TUNER Rch
ToSOUNDPROCESSOR
(SH-DV280)
BLOCK DIAGRAM
A.GND
Lch IN
Rch IN
+B(10V)
SUR L
SUR R
S.W
MIC
-B(-10V)
V.GND
D.GND
CE/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
From POWER
Rch
Rch
Rch
TRANSFORMER
BU4053BCFE2
IC201
SIGNAL SELECTOR
+B4
-B3
13
14
2
8
16
7
X1
X0
Y0
G
SW CONT.
VDD
VSS
ABC
11 10 9
12
1
Y1
15
AM
ANT
COIL
+B(FM)
19202122 23
18
AM
IN
OSC
AM RF
AM
AM
RF
MIX
AMP
AM
IF
AM/FM
IF
BUFFER
TUNING
DRIVE
AM
MIX
OUT
2
AM
IFT
AGC
AGC
COMP
AM IF
IN
4
AM
AM
DET
SD
68 1110
OUT
DET
STRQ
OUT
PLL FREQUENCY
SYNTHESIZER
(LC72131M)
+B(FM)
Power
+B1
supply
(FM:ON)
18
AOUT
17
AIN
REFERENCE
DIVIDER
1/6,1/17 4BIT
12 BIT
PROGRAMMABLE
DIVIDER
DATA SHIFT
REGISTER LATCH
BO4
BO3
BO2
98710
1/2
XOUT
FM IN
AM IN
VDD
PHASE DET
CHARGE PUMP
SWALLOWCOUNTER
IO2
IO1
12
16
PD
IFIN
11
UNIVERSAL
COUNTER
Power
Vss
19
ON
RESET
15
XIN
CE
BO1
7.2MHz
1
20
14
13
2
3
DI
4
CL
5
D0
CE1
DATA1
CLK1
DATA IN
6
+B2
SHSYNC
97
9596
SH DI
LC72 CE
SH DO
LC72 DI/ST
SH CK
LC72 CK
345
CE1
CLK1
DATA IN
21
94
SH CS
SH REQ
6
6CH
ST/AV.
C2BBFD000317
SYSTEM CONTROL / FL DRIVE
SD
LC72 DO
2
100
DATA1
SD
IC901
93
MUTE3
SEL/
TUNER
10
MIC DET
25
+B8
SA-DV280(EB,EG) BLOCK DIAGRAM
DET
4,10
2
7
VDDA/D
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
CINFLOUTVREF
VREF
OSC/DIVIDER
XOUTXIN
89
X151
(4.33MHz)
Q606
MUTING
PLL
(57kHz)
MODE
12 13
CLOCK
RECOVERY
(1187.5kHz)
DATA
DECODER
RDS-ID
DETECT/
RAM
RST
CLK
DATA
IDR
Q609
(Q610)
15
14
16
MUTING
+B5
Q612
MUTING
CONT.
26
(25)
RSN311W64B
19
(18)
23
22
24
13
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
Rch
D906
Q503,D558
SWITCH-
ING
D974
D907
PHONES
SURROUND
Ω
(8 )
CENTER
Ω
(8 )
SPEAKERS
HF
Ω
(6 )
LF
Ω
(8 )
M
FAN MOTOR
AC IN
POWER
VR901
(VOLUME)
24 23
VR JOGA
30~37
FL901
VR JOGB
1~8G
FL DISPLAY
38~45,
47~50
52~71,
73~78
16
P1~38
X901
(6MHz)
17
XC IN
D931,933
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
DD3VDD4
V
46 72
+B8
88
POWER
POWER
1
86
CHECK
MUTE
15
Vss
-VP
26
51
-VP
HP SW
Vss2
89
SA-DV280(EB,EG) BLOCK DIAGRAM
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
C2BBFD000317
SYSTEM CONTROL / FL DRIVE
STAND-BY
81
IC901
KEY
SWITCH
(S901~908,
910~915)
KEY TU
19 20
AC IN
-B1
-B3
-B2
+B7
+B3
+B4
+B2
+B1
+B5
-VP
Q723
REGULATOR
Q711,712,725
REGULATOR
/STABILIZER
D702,704,
752,754,755
Q703,704
REGULATOR
Q701
REGULATOR
Q702,705
REGULATOR
/STABILIZER
Q707
REGULATOR
D701,703,
751,753,761
D717~720
D705
T701
POWER TRANSFORMER
+B6
RL702
RELAY
DRIVE
Q791
Z701
NOTES : SIGNAL LINE
F1
L701
AC IN
: FM SIGNAL
: AM SIGNAL
: FM OSC SIGNAL
: AM OSC SIGNAL
:AUDIO SIGNAL
( ) indicates pin No. Right channel.
SHSYNC
POWER
SASYNC
+B6
+B8
+B9
D902
D901
Q726
REGULATOR
Q708,709
SWITCH-
ING
D740
D746
FL DISPLAY
(FL901)
D741~744
FL1
FL2
T702
POWER
TRANSFORMER
SA-DV280(EB,EG) BLOCK DIAGRAM
Note: This printed circuit board diagram may be modified at any time with the development of new technology.
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
S907
(SET)
R906
J
S903
6
(FM AUTO/
MONO)
R905
J
C396
J
S905
(CLOCK/
TIMER)
C395
R904
R903
S902
C
S906
(TUNING
MODE)
(—DEMO)
B
JK903
(PHONES)
2
3
4
1
5
7
C923
W905
)
D904
J
C924
R902
J
R999
R976
Q901
B
C
E
J
J
J
R929
J
D905
C914
C916
C918
R928
D974
R946
R901
VR901
(VOLUME)
1
2
3
R930
R931
R932
R956
R987
R936
R935
J
R954
J
J
C901
100
C912
J
R952
C910
J
R944
C159
S904
( PLAY/
REC)
J
C905
1
C911
R921
C158
C157
C156
R926
L902
95
5
10
C925
R953
J
R918
R919
R934
R988
R937
R969
R958
C926
85
90
15
3
2
1
X902
J
R922
J
C917
(SENSOR)
3
2
1
X151
C915
R991
J
D906
81
20
X901
Z901
C154
R957
J
R959
R960
J
25
R925
910
D954
J
J
D961
R966
J
J
L901
IC901
30
J
R951
C908
R924
IC151
R157
REC)
( PLAY/
J
C902
Q902
E
C
B
J
C903
C921
R939
R986
J
80
75
R943
R945
C907
J
R961
R962
C151
15
R965
D151
158
16
R942
J
J
J
70
31
C155
N
R974
R993
65
35
J
R950
C919
C152
R941
R995
J
C928
D973
R990
R997
D933
60
40
C909
C904
J
L151
R158
J
J
C931
45
R949
C153
C160
J
J
R975
D931
55
D907
51
50
J
J
D901
C922
C927
R912
J
R996
FL901
W902B
15
14
J
13
12
11
S913
10
DIGITAL
9
8
S.WOOFER
7
6
5
4
3
2
D951
1
J
J
J
J
D902
W901B
C920
15
14
13
12
11
10
9
8
1
7
2
6
5
4
3
5
2
6
1
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
L153
34
35
36
37
38
J
39
40
41
42
J
43
44
45
46
47
48
49
50
53
54
L152
R151
R153
J
R155
R152
R154
To SOUND PROCESSOR
A
S901
( / )
D306
( )
(REP3337E-M)
MAIN P.C.B.
B
W902A
D607
J
CN781
14
10
12
9
10
R635
R719
8
8
7
6
6
J
5
4
4
2
3
2
J
1
J
J
C725
C664
J
Q723
14
12
10
8
6
4
2
J
J
J
C741
4
3
2
1
R764
R763
J
15
13
11
9
7
5
3
1
J
J
J
Q707
B
C
E
J
J
C731
J
J
C707
J
C761
J
J
R776
D717
D755
C702
C704
R708
E
C
B
D720
C714
D719
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
8
6
4
2
C509
C706
ECB
ECB
R739
D703
J
D752
D702
J
Q609
ECB
ECB
Q610
J
R512
R510
J
J
D751
J
D701
J
J
J
J
R511
R509
C510
D721
J
J
J
Q708
Q709
C715
J
1234
J
J
J
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
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
R721
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
R572
R544
R769
J
R558
E
Q556
D725
D558
J
R638
C709
Q553
D582
CB
D555
ECB
R569
C551
R556
C613
R608
C614
R555
B
C
E
R767
J
1234567891011
C559
ECB
D581
D554
C550
D551
R607
C721
C619
J
J
R722
J
J
J
J
J
CP601
7
R566
R560
C371
J
R623
C618
R637
J
Q557
R567
R622
R620
R546
R547
R624
C648
C617
J
C640
R568
ECB
JK551
12
E602
R552
R551
N
R648
E601
R642
J
C642
B
C
E
R621
C616
R627
J
C641
C660
C659
C612
R610
J
R619
J
D602
D601
C620
D553
C556
Q601
J
C622
Q602
R628
C647
R631
R615
R611
R691
J
R640
J
C630
B
C
E
C609
J
R647
J
C555
NN
NN
Q605
R688
Q607
R632
C611
J
J
L601
L602
C639
Q606
J
R604
R687
R614
J
R609
C605
C610
J
J
R639
J
C637
R601
C603
J
J
C606
R612
J
C632
C636
C635
E
E
C650
J
R605
R606
R617
R618
R684
R683
E
E
R603
R686
R685
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
C631
C608
(REP3337E-M)
LF
(8 )
HF
(6 )Ω
LF
(8 )
HF
(6 )Ω
SPEAKERS
Ω
Rch
Ω
Lch
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
W901A
D659
J
J
J
J
D718
W722A
D704
D754
J
J
15
13
J
11
9
7
5
J
3
1
J
R761
R694
D611
J
R696
SA-DV280(EB,EG) OPERATION, MAIN P.C.B.
123456789101112
13
Note: This printed circuit board diagram may be modified at any time with the development of new technology.
H
POWER TRANSFORMER
E
(A) P.C.B.
POWER TRANSFORMER
F
AC IN P.C.B.
D
RL702
4
3
G
2
1
C791
F
E
F1 T2A
FC1 FC2
L701
JK701
W1
W2/W3
Z701
D
T702(Power transformer)
C644
C651
C646
C652
JK603
C
SR
SL
C753
J
L604
C625
C643
J
C755
C633
C645
D743
R643
Q791
C754
C758
J
R646
R644
R645
R794
ECB
D500
R777
J
D741
D742
C624
L603
R773
R774
Q726
ECB
J
D744
J
C634
R795
D740
J
D745
R771
D711
R772
R712
C759
D746
CN602
1
2
3
J
4
5
J
6
7
D747
8
CN601
1
2
3
4
5
6
7
8
9
10
11
12
REP3338A-S . . . [EG]
REP3338B-S . . . [EB]
W721B
10
R793
1
2
3
4
5
6
7
8
9
R798
W722B
1
2
3
4
FP791
FP792
J
(REP3337E-M)
CN701
CN702
CN703
CN704
CN705
CN706
CN707
CN708
CN709
CN710
AC IN
230V 50Hz . . . [EG]
230-240V 50Hz . . . [EB]
CENTER/
SURROUND
SPEAKERS
C
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
R765
W701B
C710
R720
C734
R753
R754
D723
10
9
8
7
6
5
4
3
2
1
Q701
Q702
Q711
Q712
B
C
C719
E
B
C
E
C720
B
C
Q725
E
J
B
C
E
(B) P.C.B.
CN711
CN713
W2
J
W3
CN712
J
REP3338A-S . . . [EG]
REP3338B-S . . . [EB]
J
W1
J
J
J
(REP3337E-M)
A
SA-DV280(EB,EG) AC IN, POWER TRANSFOMER(A)/(B), POWER SUPPLY P.C.B.
123456789101112
13
SCHEMATIC DIAGRAM-1
OPERATION CIRCUIT
A
H
G
F
E
D
C
B
150
R997
R996
150
D973
MA4030MTA
C921
1000P
JK903
PHONES
3.5mm STEREO
FL901 (A2BB00000084)
C922
35V33
W905
1 6 8 10 11 1213 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
25V22
C928
25V22
S913
(DIGITAL
)
S.WOOFER
2
3
6
4
5
7
1
C923
NOTE:
The number which noted at the connectors onthe schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
indicates the schematic diagram serial number located onthe left corner in the schematicdiagram.
FL DISPLAY
ABCDEFGHIJKLMNOPQRSTUVWXYZ
R912
4.7K
0.1
S908
S912
)
INPUT SELECTOR
(
(TUNER/ BAND)
C396
0.047
R907
3.3K
R911
3.3K
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
(
ABCDEFGHI JKLMNOPQRSTU
R922
R921
10K
10K
R925
1K
R924
1K
C908
C907
C904
470P
470P
0.01
R944
C924
2.2K
0.1
R903
R9021KR901
1.2K
)
S903
DEMO
(-
R915
R9141KR913
1.2K
S
T
820
)
S902
CLOCK/ TIMER
(
820
)
PTY
S915
(
(RDS DISP MODE)
D974
MA165TA
S901
S914
)
/
(
)
PS
(
X
W
V
C919
C927
25V22
25V22
: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
D931
MA165TA
D933 MA165TA
100K
R993
C916
6.3V100
C
ABCDEFGH I J K LMNOPQRST 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
P11
P10
FM / AM
T 5.5ms.
F=32.7kHz
TIMER
S.W.LED
0V0V0V
220
R995
)
R994 100K
S.WOOFER
(DIGITAL
R999
23.4V-20.5V-26.2V
-
5.1V
P8P7P6P5P4P3P2
P9
DD3
V
IC901
C2BBFD000317
SYSTEM CONTROL/
FL DRIVE
FM / AM
2V
P-P
2V/2ms.DIV.
T
10ms.
LOUNGE
CHORUS
MUTENCPOWER
0V0V0V
4.8V
100K
R960 1.5K
R959 47
R958 1K
26.2V-26.2V-26.1V-26.3V-23.5V-23.5V
29.2V
-
-
FM / AM
4V
0V
-
30V
F=6MHz
FM / AM
F=32.7kHz
5V
0V
5V
0V
DD2
MUTE2NCMUTE3
Vss2
V
5.1V
5.1V
C905
1000P
2.7K
R969
23.5V
-
P1
1G2G3G4G5G6G7G
FM / AM
T 5.5ms.
FM / AM
F=6MHz
3.3V
P-P
5.2V
P-P
FM / AM
5.2V
P-P
F=32.7kHz
2V/2ms.DIV.
SHCS
SHDO
SHDI
0V
1.9V
1.4V
1.9V
R935 100
100
R936
27.5V-25.5V
-
4V
0V
-
30V
4.2V
P-P
KEY KARAOKE
SEL/ TUNER
5V
0V
SHCK
E DET
CR TIMER
5.1V
3.3V
R988 1K
R937 10K
R934 100
25.6V-27.5V
3132333435363738394041424344454647484950
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
XIN
RESET
AC IN
SEL TUNER
ST/ AV.6CH
LC72 CK
LC72 DI/ ST
LC72 CE
LC72 DO
CHECK
SD
100
0V
C901
R987 1K
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
9
8
7
6
5
4
3
2
1
R926
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
C925
R9561KR957
C915
R940
R929 1K
R930 1K
R932 1K
R931 1K
X901
(6MHz)
1
3
330K
R951
20P
C910
0V
1000P
0.01
1K
D901
1SS291TA
C914
D904
1K
2
50V2.2
MA165TA
L901
10 H
C902
10V1000
U
J
H
G
A
B
D
C
EFIKLMNO Q
A
SA-DV280(EB,EG) OPERATIONCIRCUIT DIAGRAM
123456789101112
SCHEMATIC DIAGRAM-2
OPERATION CIRCUIT
A
5.1V
EVQVBXFK124B
(VOLUME)
COM
1 2 3
C151
16V10
C158
6.3V47
560P
C154
47P
C157
VR901
BA
IC151
C1BB00000527
RDS SIGNAL
DEMODULATOR
2.5V
VREF
1
2.5V
HPX IN
2
5.1V
V
3
VssA
4
2.5V
FL OUT
5
2.5V
CIN
6
TEST
7
X OUT
8 9
22K
R962
100
R945
DEA
DDA
X151
C152
330P
: NEGATIVEVOLTAGELINE
: POSITIVE VOLTAGE LINE
0.01
C917
C918
6.3V100
22K
R961
C909
100
R943
RDCL
RDDA
MODE
V
VssB
IDR
RST
DDB
XIN
1000P
16
2.6V
15
2.6V
14
0V
13
1K
R157
12
5.1V
11
10
2.5V2.7V
47P
C156
R151
R153
C155
R946
1K
1K
100K
1000P
1K
R152
100K
R154
C153
1000P
L151
100 H
R158
1K
BC
: FM SIGNAL LINE
: AM SIGNAL LINE
Z901
B3RAD0000028
(REMOTE SENSOR)
3
2
1
C159
C160
6.3V47
1000P
L152
MAIN CIRCUIT
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
T.GND
+B(1)
+B(2)
DET
Rch IN
Lch IN
B
H
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
SD
4
5
6
7
CE
8
9
DI
10
DO
11
CL
R51147R509
R512 47R510 47
W902A
W901A
6V
7.2V
CP101
R230 1K
R229 1K
47
10.4V
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
15
16
5.7V 0V 0V 0V 0V 0V
100K
R205
H
G
C
B
D
A
Q605,606
2SD2144STA
MUTING
4.7K
F
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
X0X1VDD
12 11 10 9
16V10
4.7K
R617
C656
16V10
C655
16V10
C602
16V10
R695
470
0V
0V
-
10V
Q606
Q609
Q610
-
-
C741
10V
10V
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
4.7K
H
A
D
C
R687
1.5K
R606
C664
C725
4.7K
5.1V
-
16V10
16V47
R688
1.5K
10.2V
:AUDIO SIGNAL LINE
TUNER Lch/C
TUNER Rch
R941
1K
Q902
UN411FTA
MUTING CONT.
3.3V
2.2K
R942
M
A
B
C
D
E
F
G
H
I
J
K
L
U
N
O
Q
S
T
100 H
3.3V
0V
D906
MA165TA
D907
MA165TA
6V
R974
1K
C931
16V10
D961
N
R975
MA4075MTA
22K
R966
3.9K
7.6V
R965
3.9K
L153
R155
D151
MA4051MTA
ABC
-30.1V
1 H
120
W902B
W901B
To
SOUND
PROCESSOR
(SH-DV280)
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
ToTUNER UINT
on SCHEMATIC
DIAGRAM-5/11,12-A
C715
25V6800
14.7V
SA-DV280(EB,EG) OPERATION,MAIN CIRCUIT DIAGRAM
13 14 15 16 17 18 19 20 21 22 23 24
SCHEMATIC DIAGRAM-3
MAIN CIRCUIT
B
IC601
D756
0V
MA700ATA
D757
C648
1000P
B
A
R602
3.3K
0V
0.7V
Q608
RSN311W64B
POWER AMP
MA700ATA
C603 470P
C604 470P
R601
3.3K
R604
3.3K
4.7K
R618
R685
1K
0.7V
Q607
R686
1K
Q607, 608
2SD2144STA
MUTING
L
K
M
G
C705
25 26 27 28 29 30 31 32 33 34 35 36
-
51.4V
0V0V0V0V
C607 470P
C608 470P
C649 1000P
0.01
C617
0.01
C618
Q708
UN4211TA
SWITCHING
(POWER)
2.1V
0.01
AB C
: POSITIVE VOLTAGE LINE
: NEGATIVEVOLTAGELINE :AUDIO SIGNAL LINE
7.6V
-
10.4V
-
0.2V
29.4V
-
29.7V
R612 56K
C610 56P
R611 56K
C609 56P
R610 150K
C612 15P
R609 56K
C611 39P
R608 56K
C614 47P
R607 56K
C613 47P
22K
R628
R648
120
R647
270
0.7V
47K
R739
C622
10V100
R572
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
R623
120K
C650 1000P
R691
68
R738
3.9K
Q709
2SD2144STA
SWITCHING
(POWER)
0V 0V
10K
R776
C605 1000P
0V0V54.1V
C606 1000P
N
5.1V5.1V
0V
D558
MA165TA
Q503
2SC5398RSTA
SWITCHING
D704
1N5402BM21
C704
35V4700
C702
35V4700
0V
D753
RL1N4003N02
D761
RL1N4003N02
D702
0V0V0V0V
D607
1SS291TA
0V
15K
R637
D703
1N5402BM21
C703
35V4700
C701
35V4700
D752
1N5402BM21
-
29.3V
D602
SB360L6508
0.1
C619
D751
1N5402BM21
C761
1N5402BM21
R635
2.2K
0.1
D701
0V28.9V
D601
SB360L6508
68K
R638
0.1
C709
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
220
R761
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
D730
100K
18K
MA4091HTA
-
10.4V
100K
R560
7.6V
-
10.4V
R591
Q555
4.7K
2SD2144STA
SIGNAL LEVEL DET.
R555
47K
R552
R729
3.9K
R727
220
D725
MA4082LTA
Q711,712
2SB1548PQAU
REGULATOR
10.4V 14.1V
Q712
R768
D739
100
MA165TA
C734
D758
50V3.3
MA165TA
22K
13.6V
10.4V
10.2V
R769
27
CN781
W701B
Q711
9.6V
R765
D583
RL1N4003N02
D582
RL1N4003N02
R767
27
1
1
1K
R749
R754
0.47
R753
14.1V
13.6V
13.6V
Q725
2SC5398RSTA
STABILIZER
220
FAN ON:0V
Q557
2SA1995RSTA
MOTOR DRIVE
R558
2.2K
D552
MA165TA
R561
100K
0.47
0.5V
C554
16V220
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
7.6V
0V
C720
29.2V
0.047
C559
0.01
0V
R724
C718
C556
16V10
D581
3.9K
25V100
N
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
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
C555
16V10
22
R567
29.2V14.7V
C719
0.047
R725
10
D723
2
5.6K
R723
MA4150HTA
SA-DV280(EB,EG) MAIN,POWER SUPPLYCIRCUIT DIAGRAM
SCHEMATIC DIAGRAM-4
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
10
11
12
CP602
IJ
JK601
JK602
GND
1
GND
2
C OUT
3
C OUT
4
GND
5
GND
6
GND
7
GND
8
SUR L OUT
9
SUR L OUT
SUR R OUT
SUR R OUT
ECO
1
SH SYNC
2
SA SYNC
3
D.GND
4
BU5V
5
RS13V
6
+B
7
NC
8
HF(6 )
LF(8
HF(6 )
LF(8
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
18
C758
D747
0.01
MA4068LTA
R795
3.9K
D745
MA4051MTA
R774
18
D741
RL1N4003N02
D742
RL1N4003N02
R772
D746
RL1N4003N02
R777
1K
D743
RL1N4003N02
C753
0.01
D744
RL1N4003N02
22K
D500
A
C
B
D740
MA165TA
2.2K
R771
MA165TA
L603
R643
10
R645
C633
C625
Q791
2SD2144STA
RELAYDRIVE
0V
0.7V
T702
AC9.4V
RL702
24
3 1
JK603
CENTER(8 )
L604
R644
10
0.1
0.1
C651
0.047
C652
1000P
10
10
C646
0.047
C644
C645
0.047
C643
1000P
1000P
R646
C624
C634
0.1
0.1
Rch
SURROUND(8
Lch
SPEAKERS
)
H
G
F
47K
R794
F1 T2A
L701
JK701
E
AC IN
230-240V 50Hz [EB]
Z701
230V 50Hz [EG]
W2/W3
D
C791
1000P
W1
POWER TRANSFORMER
E
(A) CIRCUIT
R793
1
CN701
CN702
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
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
K5G502AA0002
K5G502AA0002
FP791
FP792
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
T701
POWER TRANSFORMER
F
(B) CIRCUIT
CN711 W1
CN712
CN713
For [EG] area.
W3
W2
For [EB] area.
SA-DV280(EB,EG) MAIN, AC IN, POWER TRANSFORMER(A),(B) CIRCUIT DIAGRAM
37 38 39 40 41 42 43 44 45 46 47 48
C
B
A
SCHEMATIC DIAGRAM-5
Z101 TUNER UNIT(RAN0005EM-2)
:POSITIVE VOLTAGE LINE
:FM SIGNAL LINE
:FM OSC SIGNAL LINE
:AM SIGNAL LINE
:AM OSC SIGNAL LINE
100
10K
LA1833MN
FM/AM IF AMP,
DET/AM OSC,MIX/FM MPX
1K ~ 10K
22
0.022
0.01
270 ~ 680
3.3
1000P
24 23 22 21 20 19 18 17 16 15 14 13
AM OSC
AM OSC OUT
FM IF IN
AM MIX OUT
1 2 3 4 5 6 7 8 9 10 11 12
1
0.1
AFC
REG
1000P
270K ~ 680K
4.7
47K
AM RF IN
AM IF IN
0.01
2SC2413
FM IF AMP
AGC
GND
2SC2059
1 H
1000P
1000P
330
100
I01 IF IN
FM MIXER
680
820K ~ 2.2M
22K~100K
10K
10K
0.022
0 ~ 220
150
0.01
0.022
390
A
220
B
27K
C
100P0.01
D
E
F
100
100
A
D
B
C
4.7K ~ 22K
2.7K47P
5P ~ 12P
33K
2SK360
RF AMP
5P
100K
6 ~ 220
1P ~ 5P
0.022
2P
100
2SK360
FM OSC
100K
6P ~ 10P
4P
27P
1P ~ 5P
33K
33K
2SC2413
BUFFER AMP
8P
10K 10K
27P
2.2K
680 ~
2P
220
0.022
5P
18P
H
FM ANT
(75
)
22P 15P
100K
0~5P
22P0.022
G
F
A
AM ANT
EXT
LOOP
E
D
C
B
0.47 H
10K
0.47 H
5.6K
0.01
1000P
10P ~ 33P
330P ~
580P
27P
0.047
7.2MHz
100K
3.3K
10K
5 ~12P
22
10K
4.7
560
A OUT
DI
1K
AIN
CL
1K
27P~ 33P
20 19 18 17 16 15 14 13 12 11
Vss
X OUT
XIN
CE
1 2 3 4 5 6 7 8 9 10
1K
1K
ABCD
C
B
D
DZS5.1B
PD
VDD
LC72131M
PLL FREQUENCY
SYNTHESIZER
DO
B01
470
0.58
H
1000P
AM IN
B03
I02
B04
FM IN
B02
1K
A
330
10P ~
39P
100P ~ 1000P
0.01 ~ 0.068 10K~ 100K
AM OUT
DET OUT
ST
SD
470
470
AB
330
270K ~
680K
2SC2413
FM IF AMP
1022K4.7
1K ~ 10K
150P
PILOT IN
FM DET
5 ~ 150
1000P
DTA114
POWER SUPPLY
(FM:ON)
68K 0.1
0.018
1000P ~ 0.01
0.018
MPX IN
PILOT OUT
STRQ
Vcc
470
0.1
Rch OUT
FM/AM
Lch OUT
MONO
0.47
2.7K1
1
68
BADFC E
A
B
A
B
D
C
1K1
4700P
2SC2712
SWITCHING
DI
DO
B
Lch OUT
CE
100K
100K
Rch OUT
4700P
DET
+B(2)SD+B(1)
11K
3.3K
1K ~ 10K
11
CL
To MAIN CIRCUIT(CP101)
on SCHEMATICDIAGRAM-2/19-A
B
A
A
B
13 245678910
T.GND
SA-DV280(EB,EG) TUNER UNIT CIRCUIT DIAGRAM
123456789101112
SCHEMATIC DIAGRAM-1
OPERATION CIRCUIT
A
NOTE:
The number which noted at the connectors onthe schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
indicates the schematic diagram serial number located onthe left corner in the schematicdiagram.
H
G
R997
D973
C921
150
MA4030MTA
1000P
R996
150
F
E
D
FL901 (A2BB00000084)
C922
35V33
1 6 8 10 11 1213 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
25V22
C928
25V22
)
S908
INPUT SELECTOR
(
R912
4.7K
)
S913
(DIGITAL
S.WOOFER
S912
(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
)
S903
DEMO
(-
R915
1.2K
ABCDEFGHI JKLMNOPQRSTU
ABCDEFGHIJKLMNOPQRSTUVWXYZ
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
X
W
C919
C927
25V22
25V22
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
C
B
A
D974
MA165TA
C904
0.01
C924
V
0.1
JK903
PHONES
3.5mm STEREO
W905
2
3
6
4
5
7
1
0.1
C923
C396
0.047
C395
0.047
S
T
123456789101112
25.6V
27.5V-27.5V
-
3132333435363738394041424344454647484950
4V
REMOCON
0V
30V
RDS DATA
RDS CLK
HP SW
4.2V
MIC DET
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
R937 10K
R987 1K
:AUDIO SIGNAL LINE
-
25.6V
8G
30
5.1V
29
2.6V
28
2.6V
27
0.6V
26
5.1V
25
0V
24
0V
23
22
1.4V
21
5.1V
20
5.1V
19
5.1V
DD1
V
18
2.3V
17
2.3V
XC IN
16
Vss
15
2.7V
14
1.6V
XIN
13
5V
12
2.2V
AC IN
11
0V
10
9
8
100K
R976
7
5.1V
6
5.1V
5
4.6V
4
0V
3
0V
2
2.5V
1
R926
2.2K
C901
6.3V100
R918 10K
R919
15K
R991
47K
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
C925
R9561KR957
C915
R940
R929 1K
R930 1K
R932 1K
R931 1K
X901
(6MHz)
1
3
330K
R951
20P
C910
0V
D904
1000P
0.01
1K
D901
1SS291TA
C914
MA165TA
1K
2
50V2.2
L901
10 H
C902
10V1000
U
J
H
G
A
B
D
C
: POSITIVE VOLTAGE LINE : NEGATIVEVOLTAGELINE
A
B
-
30.1V
-
30.1V
51
-
100K
R990
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
D931
MA165TA
D933 MA165TA
100K
R993
C916
6.3V100
C
ABCDEFGH I J K LMNOPQRST 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
220
R995
)
R994 100K
S.WOOFER
(DIGITAL
R999
23.4V-20.5V-26.2V
5.1V
-
P8P7P6P5P4P3P2
DD3
V
IC901
C2BBFD000317
SYSTEM CONTROL/
FL DRIVE
4V
0V
-
30V
FM / AM
2V
P-P
T
10ms.
CHORUS
MUTENCPOWER
0V0V0V
4.8V
100K
R960 1.5K
R959 47
R958 1K
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
MUTE2NCMUTE3
Vss2
V
5.1V
5.1V
C905
1000P
2.7K
R969
25.5V
23.5V
-
-
P1
1G2G3G4G5G6G7G
FM / AM
T 5.5ms.
FM / AM
F=6MHz
3.3V
P-P
5.2V
P-P
FM / AM
5.2V
P-P
2V/2ms.DIV.
SHCS
SHDO
SHDI
0V
3.3V
1.9V
1.4V
1.9V
R935 100
R934 100
100
R936
-
SHCK
EFIKLMNO Q
SA-DV280(EB,EG) OPERATIONCIRCUIT DIAGRAM
SCHEMATIC DIAGRAM-2
OPERATION CIRCUIT
A
5.1V
EVQVBXFK124B
(VOLUME)
COM
1 2 3
C151
16V10
C158
6.3V47
560P
C154
47P
C157
VR901
BA
IC151
C1BB00000527
RDS SIGNAL
DEMODULATOR
2.5V
VREF
1
2.5V
HPX IN
2
5.1V
V
3
VssA
4
2.5V
FL OUT
5
2.5V
CIN
6
TEST
7
X OUT
8 9
22K
R962
100
R945
DEA
DDA
X151
C152
330P
: NEGATIVEVOLTAGELINE
: POSITIVE VOLTAGE LINE
0.01
C917
C918
6.3V100
22K
R961
C909
100
R943
RDCL
RDDA
MODE
V
VssB
IDR
RST
DDB
XIN
1000P
16
2.6V
15
2.6V
14
0V
13
1K
R157
12
5.1V
11
10
2.5V2.7V
47P
C156
R151
R153
C155
R946
1K
1K
100K
1000P
1K
R152
100K
R154
C153
1000P
L151
100 H
R158
1K
BC
: FM SIGNAL LINE
: AM SIGNAL LINE
Z901
B3RAD0000028
(REMOTE SENSOR)
3
2
1
C159
C160
6.3V47
1000P
L152
:AUDIO SIGNAL LINE
TUNER Lch/C
TUNER Rch
A.GND
Lch IN
Rch IN
+B(10V)
R941
1K
Q902
UN411FTA
MUTING CONT.
3.3V
2.2K
R942
M
A
B
C
D
E
F
G
H
I
J
K
L
U
N
O
Q
S
T
100 H
3.3V
0V
D906
MA165TA
D907
MA165TA
6V
R974
1K
C931
16V10
D961
N
R975
MA4075MTA
22K
R966
3.9K
7.6V
R965
3.9K
L153
R155
D151
MA4051MTA
ABC
-30.1V
1 H
120
W902B
W901B
To
SOUND
PROCESSOR
(SH-DV280)
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
ToTUNER UINT
on SCHEMATIC
DIAGRAM-5/11,12-A
SUR L
SUR R
S.W
MIC
-B(-
10V)
V.GND
D.GND
CS/ REQ
CLK
DATA
CT GND
SH FL1
SH FL2
SYNC
T.GND
+B(1)
+B(2)
DET
Rch IN
Lch IN
SD
CE
DO
CL
13 14 15 16 17 18 19 20 21 22 23 24
To
SOUND
PROCESSOR
(SH-DV280)
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
-
R211
37.3V
R597
2.2K
R598
2.2K
270
C707
0.047
R563
D201
2.7K
MA4056MTA
R708
D721
MA4300MTA
4.7K
R564
2.7K
C201
C737
0.1
50V100
7.6V
-
10.4V
C659
16V10
C660
16V10
R615
1 2 3 4 5 6 7 8
15
16
5.7V 0V 0V 0V 0V 0V
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
X0X1VDD
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
3.3K
4.9V
R694
22K
G
C
R605
D611
MA4051MTA
4.7K
R687
1.5K
R606
C664
C725
4.7K
5.1V
-
16V10
16V47
R688
1.5K
10.2V
ToTUNER UINT
on SCHEMATIC
DIAGRAM-5/11,12-A
T.GND
+B(1)
+B(2)
DET
Rch IN
Lch IN
D705
C715
25V6800
RL1N4003N02
D718
RL1N4003N02
D717
RL1N4003N02
C731
1000P
D720
RL1N4003N02
D719
RL1N4003N02
14.7V
C741
H
A
C714
1000P
D
0.1
C
Q723
2SC3940AQSTA
CP101
1
2
3
SD
4
5
6
7
CE
8
9
DI
10
DO
11
CL
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
330
D737
4.7K
MA4082LTA
SA-DV280(EB,EG) OPERATION,MAIN CIRCUIT DIAGRAM
SCHEMATIC DIAGRAM-3
MAIN CIRCUIT
B
IC601
MA700ATA
RSN311W64B
POWER AMP
D756
D757
MA700ATA
: POSITIVE VOLTAGE LINE
: NEGATIVEVOLTAGELINE :AUDIO SIGNAL LINE
7.6V
-
10.4V
123456789101112131415181920212223242526 1617
-
59.5V
-
29.3V
-
51.4V
0V0V0V0V
0V0V54.1V
29.7V
-
0.2V
29.4V
-
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
68
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 56K
C611 39P
R608 56K
C614 47P
R607 56K
C613 47P
22K
R628
R648
120
R647
270
0.7V
47K
R739
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
10K
D754
RL1N4003N02
D755
RL1N4003N02
D558
MA165TA
Q503
2SC5398RSTA
SWITCHING
C704
35V4700
C702
35V4700
R544
5.1V5.1V
0V
D753
RL1N4003N02
D761
RL1N4003N02
D704
1N5402BM21
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
D657
D659
R761
G
F
E
D
MA165TA
MA165TA
220
14.7V
25 26 27 28 29 30 31 32 33 34 35 36
FAN MOTOR
C555
R567
1
16V10
22
M
2
N
7.6V
Q556
2SC5398RSTA
SWITCHING
123456789101112131415181920212223242526 1617
0V0V59.5V
D658
MA165TA
0V
R569
10K
0.5V
FAN ON:0V4.7V
D554
MA165TA
R557
D551
R547
10K
MA165TA
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
MA165TA
FAN ON:0V
0.5V
Q557
2SA1995RSTA
MOTOR DRIVE
R558
2.2K
C554
D552
16V220
R561
100K
R566
68K
R568
100
0V
Q554
2SA1995RSTA
SIGNAL LEVEL DET.
D555
MA4100MTA
C550
A
D553
0.01
MA700ATA
7.6V
7V
0V
Q553
2SD2144STA
MOTOR DRIVE
C559
0.01
0V
C556
16V10
N
JK551
7.6V
6.8V
FAN ON:1.6V
D659
R761
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
C722
25V100
-
0.6V
Q705
2SA1995RSTA
STABILIZER
C720
-
11V
R796
2.2
R797
D657
MA165TA
MA165TA
3.3K
R719
220
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
R729
220
R768
100
MA4091HTA
R769
3.9K
R727
D725
MA4082LTA
Q711,712
2SB1548PQAU
REGULATOR
10.4V 14.1V
Q712
13.6V
10.4V
D739
MA165TA
10.2V
C734
D758
50V3.3
MA165TA
27
CN781
W701B
9.6V
R754
0.47
Q711
220
R765
R767
27
1
1
1K
R749
0.47
R753
14.1V
13.6V
13.6V
Q725
2SC5398RSTA
STABILIZER
SA-DV280(EB,EG) MAIN,POWER SUPPLYCIRCUIT DIAGRAM
SCHEMATIC DIAGRAM-4
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
10
11
12
CP602
IJ
JK601
JK602
GND
1
GND
2
C OUT
3
C OUT
4
GND
5
GND
6
GND
7
GND
8
SUR L OUT
9
SUR L OUT
SUR R OUT
SUR R OUT
ECO
1
SH SYNC
2
SA SYNC
3
D.GND
4
BU5V
5
RS13V
6
+B
7
NC
8
HF(6 )
LF(8
HF(6 )
LF(8
SPEAKERS
Lch
)
Rch
)
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
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
37 38 39 40 41 42 43 44 45 46 47 48
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
+B
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
7
8
RL1N4003N02
A
B
C
Q726
2SC3940AQSTA
REGULATOR
0.01
C754
6.7V
C759
10V47
D711
10.7V6V
R773
18
C758
D747
0.01
MA4068LTA
R774
R795
3.9K
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
K5G502AA0002
K5G502AA0002
C755
FP791
FP792
16V1000
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
F1 T2A
Z701
L701
JK701
AC IN
230-240V 50Hz [EB]
230V 50Hz [EG]
W2/W3
W1
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
For [EG] area.
W3
W2
B
A
For [EB] area.
SA-DV280(EB,EG) MAIN, AC IN, POWER TRANSFORMER(A),(B) CIRCUIT DIAGRAM
SCHEMATIC DIAGRAM-5
Z101 TUNER UNIT(RAN0005EM-2)
H
FM ANT
)
(75
G
22P 15P
:POSITIVE VOLTAGE LINE
2SK360
6 ~ 220
2.7K47P
5P ~ 12P
33K
5P
RF AMP
100K
0.022
2P
100
2SK360
FM OSC
100K
6P ~ 10P
1P ~ 5P
33K
33K
2SC2413
BUFFER AMP
8P
27P
220
100K
0~5P
22P0.022
:FM OSC SIGNAL LINE
4P
27P
2P
0.022
5P
1 H
1000P
330
2SC2059
FM MIXER
680
820K ~ 2.2M
:FM SIGNAL LINE
:AM SIGNAL LINE
:AM OSC SIGNAL LINE
10K
0.022
0 ~ 220
150
0.01
0.022
100
100
1P ~ 5P
10K 10K
F
AM ANT
EXT
LOOP
E
D
C
0.47 H
10K
0.47 H
5.6K
0.01
1000P
10P ~ 33P
330P ~
580P
27P
0.047
7.2MHz
100K
5 ~12P
22
10K
DZS5.1B
4.7
560
A OUT
DI
1K
AIN
LC72131M
PLL FREQUENCY
SYNTHESIZER
CL
PD
DO
27P~ 33P
20 19 18 17 16 15 14 13 12 11
Vss
X OUT
XIN
CE
1 2 3 4 5 6 7 8 9 10
18P
2.2K
680 ~
A
D
1K ~ 10K
B
C
4.7K ~ 22K
100
VDD
B01
A
C
B
D
FM IN
B02
AM IN
B03
0.58
1000P
I02
B04
H
1000P
100
390
A
220
B
27K
22K~100K
100P0.01
I01 IF IN
C
D
B
3.3K
10K
1K
1K
1K
470
ABCD
1K
10K
E
F
A
123456789101112
10K
0.01
1000P
270K ~ 680K
330
10P ~
39P
330
270K ~
680K
100
100
DET OUT
ST
2SC2413
FM IF AMP
1022K4.7
1K ~ 10K
150P
PILOT IN
FM DET
MPX IN
Vcc
DTA114
POWER SUPPLY
(FM:ON)
68K 0.1
0.018
1000P ~ 0.01
0.018
Lch OUT
Rch OUT
PILOT OUT
STRQ
FM/AM
MONO
1K1
11K
100K
100K
B
4700P
A
4700P
2SC2413
270 ~ 680
LA1833MN
FM/AM IF AMP,
A
D
B
C
DET/AM OSC,MIX/FM MPX
1K ~ 10K
3.3
1000P
24 23 22 21 20 19 18 17 16 15 14 13
AFC
AM OSC
AM OSC OUT
AM MIX OUT
REG
FM IF IN
1 2 3 4 5 6 7 8 9 10 11 12
FM IF AMP
100P ~ 1000P
4.7
47K
0.01 ~ 0.068 10K~ 100K
AGC
GND
AM OUT
SD
AM RF IN
AM IF IN
4.7K ~ 22K
100
22
0.022
1
0.01
470
AB
0.1
470
5 ~ 150
1000P
1
470
0.47
2.7K1
0.1
3.3K
2SC2712
SWITCHING
1K ~ 10K
68
BADFC E
A
B
A
B
D
C
11
CL
DI
DO
B
To MAIN CIRCUIT(CP101)
on SCHEMATICDIAGRAM-2/19-A
Lch OUT
A
B
13 245678910
CE
DET
+B(2)SD+B(1)
Rch OUT
T.GND
SA-DV280(EB,EG) TUNER UNIT CIRCUIT DIAGRAM
BU4053BCFE2
C1BB00000527
1
8
C2BBFD000317 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
SPEAKERS
12
.
.
.
.
.
CP601
.
.
.
.
.
1
8
.
.
.
.
CP602
.
.
1
MAIN P.C.B.
B
FAN MOTOR
W722A
1
1
W721A
. .
4
. . . . . . . .
To SOUND PROCESSOR
2
1
10
W901A
W501
. . . . . .
1
. . . . .
2
JK551
2
1
. . . . . . . .
2
. . . . . . . .
1
15
14
W902A
CN781
1
CP101
19
. . . . . .
1
. . . . .
2
. . . . . . . .
Z101
1
.
.
TUNER
.
.
UNIT
.
.
.
.
.
11
20
15
14
10
. . . . . . . .
1
10
W701B
1
.
.
.
.
.
.
8
1
12
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 [EG]
area.
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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