Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic Audio SA-DV280 Viewing SGML_VIEW_DATA EU SA-DV280EG SVC msc_a4
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SCHEMATIC DIAGRAM-1 NOTE:
The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
A OPERATION CIRCUIT indicates the schematic diagram serial number located on the left corner in the schematic diagram.
FL901 (A2BB00000084)
R997
H
150
FL DISPLAY
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
R996
150
25V22 25V22
Z Y X W V U T S R Q P O N M L K J I H G F E D C B A A B C D F G H I J K L M N O P Q R S T U
C927 C919
MA4030MTA
25V22 25V22
C928 C920
D973
1000P
35V33
G
C921
C922
A
B
C
D
E
F
G
H
I
F J
K
L
M
N
O
P
Q
R907 R906 R905 R904 R903 R902 R901 R925
3.3K 2.2K 1.8K 1.5K 1.2K 1K 820 1K R
X S
(INPUT SELECTOR)
(FM AUTO/MONO)
REC)
C908
470P
T
(TUNING MODE)
(CLOCK/ TIMER)
R922
(-DEMO)
10K
( / )
U
(SET)
E
S907
S906
S905
S901
S902
S903
S904
S908
PLAY/
V
W
E X
(
Y
Z
R921
R944
10K
2.2K
R912 R911 R910 R909 R916 R915 R914 R913 R924
4.7K 3.3K 2.2K 1.8K 1.5K 1.2K 1K 820 1K
W
(TUNER/ BAND)
C907
470P
S.WOOFER)
(TUNING, )
(TUNING, )
(DIGITAL
(PTY)
S913
S915
S914
S910
S911
(PS)
S912
D
(RDS DISP MODE)
D974
C 2 MA165TA
3 V
C904
C924
6 S
0.01
JK903
0.1
0.047
C395
PHONES 4
3.5mm STEREO 5
7
1
W905
T
0.047
C396
C923
0.1
B
A
1 2 3 4 5 6 7
HEMATIC DIAGRAM-2"
: POSITIVE VOLTAGE LINE : NEGATIVE VOLTAGE LINE :AUDIO SIGNAL LINE
A
B
-30.1V C
A B C D E F G H I J K L M N O P Q R S T U V W X
5.1V
-23.4V
-20.5V
-26.3V
-26.3V
-23.4V
-20.5V
-26.2V
-26.2V
-26.2V
-26.1V
-26.3V
-23.5V
-23.5V
-23.5V
-25.5V
-27.5V
-27.5V
-25.6V
-29.2V
Q901
5.1V
R949
4.7K
UN4212TA
50V2.2
C914
RESET
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
P1
P12
P11
P10
P8
P7
P6
P5
P4
P3
P2
1G
2G
3G
4G
5G
6G
7G
P9
VDD3
R950
100
0V
-30.1V -25.6V
MA165TA
51 -VP FM / AM 8G 30
-29.3V 4V 5.1V 5V
D904
A 52 P13 0V REMOCON 29 A
-29.3V 2.6V
B 53 P14 -30V RDS DATA 28 B
-29.3V T 5.5ms. 2.6V
C 54 P15 IC901 RDS CLK 27 C
-26.3V FM / AM 0.6V
D 55 P16 C2BBFD000317 HP SW 26
-20.5V 5.1V
E 56 P17 SYSTEM CONTROL/ 4.2V MIC DET 25
-29.3V FL DRIVE P-P VR JOGA 24 0V
F 57 P18 D
-29.3V FM / AM FM / AM 0V
G 58 P19 4V F=6MHz VR JOGB 23 E
-29.3V
H 59 P20 0V 3.3V NC(GND) 22 U
-23.5V P-P 1.4V
I 60 P21 -30V SH REQ 21 J
-20.5V T 5.5ms. 5.1V
J 61 P22 F=6MHz KEY KARAOKE 20
-23.4V 5.1V
K 62 P23 FM / AM KEY TU 19
-23.4V 5.1V
L 63 P24 VDD1 18
-23.7V 5.2V 2.3V R953 100
1000P
M 64 P25 XC OUT 17
C925
-20.7V P-P 2.3V
N 65 P26 XC IN 16
-29.6V F=32.7kHz FM / AM
O 66 P27 Vss 15
-29.6V 2.7V
P 67 P28 FM / AM X OUT 14
-29.6V 5.2V 1.6V
Q 68 P29 P-P X IN 13
-23.7V 2V 5V R956 R957
R 69 P30 P-P RESET 12 1K 1K
-26.6V F=32.7kHz 2.2V
S 70 P31 AC IN 11 H
-26.5V F=32.7kHz 0V
C915
T 71 P32 SEL/ TUNER 10
0.01
5.1V
R976
100K
72 VDD4 5V SEL TUNER 9
-29.5V
U 73 P33 5V 8
-29.5V R940
V 74 P34 0V 7 1K
-26.5V 5.1V
W 75 P35 2V /2ms.DIV. 0V ST/ AV.6CH 6 G
-17.2V 2V /2ms.DIV. 5.1V R929 1K
X 76 P36 LC72 CK 5 A
-5.3V 5V 4.6V R930 1K
Y 77 P37 LC72 DI/ ST 4 B
-10.3V 0V R932 1K
Z 78 P38 LC72 CE 3 D
MA165TA
0.4V 0V 0V R931 1K
79 REGIN0 LC72 DO 2 C
0V T 10ms. 2.5V
REGIN1 CHECK 1
STAND-BY
80
CR TIMER
1SS291TA
CHORUS
LOUNGE
S.W.LED
POWER
MA165TA
X901
MUTE2
MUTE3
TIMER
E DET
SHDO
MUTE
SHCS
SHCK
D931
(6MHz)
SHDI
VDD2
R990
100K
Vss2
NC
NC
SD
1
D933
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 2
3
D905
4.8V
1.9V
3.3V
5.1V
1.4V
0V
0V
0V
0V
0V
0V
5.1V
5.1V
0V
1.9V
0V
R993
100K
R926
100K
2.2K R954 R952
100K 10M
R939
R986
R995
1.5K
1.5K
220
6.3V100
1000P
C905
C912
C901
0.1
R994
1 H
R951
330K
10K
47K
(DIGITAL S.WOOFER)
REC)
100
100
1K
10K
1K
LNJ301MPUJAD
X902
SELS5923C
(32.7kHz)
SELS5223C
D954
D951
D306
R918
R928
( )
PLAY/
L902
R988
R937
R987
R935
R934
C911
C910
18P
20P
(
1000P
C926
R919
1.5K
15K
1K
47
10 H
R936
R999
R969
L901
100K
2.7K
100
R991
R960
R958
R959
47K
D902 D901
1SS291TA 1SS291TA
5.1V
6.3V100
10V1000
C903
C916
0.01
C902
L O F M K I N E Q
SA-DV280(EB,EG) OPERATION CIRCUIT DIAGRAM
7 8 9 10 11 12
SCHEMATIC DIAGRAM-2 : NEGATIVE VOLTAGE LINE : FM SIGNAL LINE
A OPERATION CIRCUIT : POSITIVE VOLTAGE LINE : AM SIGNAL LINE :AUDIO SIGNAL LINE
TUNER Lch/
TUNER Rc
A.GN
Lch I
Rch
+B(10V
SUR
R941 SUR
5.1V 1K
6.3V100
VR901 To S.
C917
C918
0.01
EVQVBXFK124B
(VOLUME) Z901 SOUND MI
B3RAD0000028 Q902 PROCESSOR -B(-10V
(REMOTE SENSOR)
R962 UN411FTA (SH-DV280) V.GN
R961
22K
22K
MUTING CONT. R974 D.GN
3 3.3V 3.3V 1K CS/ RE
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