Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic Audio SA-PTX7EB MD0704019CE doc scd_a4_5
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15 16 17 18 19 20 21
SCHEMATIC DIAGRAM - 21
I POWER CIRCUIT :+B SIGNAL LINE :-B SIGNAL LINE
5 4
IC726
DCDET1
C0EBJ0000331 NC NC D725
AC DETECT B0HBSM000052
R751 OUT VCC GND
100
ACDET
1 2 3 QR732
Q728 R787 C755 B1ABCF000011
R749 B1ABCF000011 R792 POWER TRANSFORMER
2.7K 100K 1 2 3 1K
I2
1 T721
R793
C799
R750
470
2.2K
ETS35BC2K6AD
1
MAIN TRANSFORMER
LB2707 R735
PA30V J0JKC0000002 22
16 1
35V2200
C743
15 2
PAGND
14 3
13 4
R758
D758
100
B0HBSM000043
IC727 1 2 3 12 5
C0DAEMZ00001
15V SHUNT REGULATOR
11 6
25V2200
C771
C779
0.01
10 7
R760
12K
R767
100K
R A C 9 8
J0JHC0000055
R756 2 3 1
2.2K
LB721
R757
C762
27K
0.1
R755
15K
R788
R795
C761
100
0
0.1
FGND
L743 D736
L740 C759
-7V G0A200D00002 25V220 G0A200D00002 B0JAMG000011
FGND
HDDGND C758
25V220
MGND
R746
1.2K
C778
0.01
IC722
C0DBZHG00047
ON/OFF
VOUT
+9V REGULATOR
GND
VIN
NC
D723 L738
B0EAKM000117 G0A220GA0026 1 2 3 4 5
SW12V
16V220
C734
16V220
C787
C736
1
A+7V
TO POWER
M9V
DCDET1 Q725
R740
27K
SECTION (2/2) B1ABCF000011
IC723 DC DETECT
C0DBZHG00047
ON/OFF
50V4.7
VOUT
C741
R738
+9V REGULATOR
15K
GND
VIN
NC
L739
G0A220GA0026 1 2 3 4 5 A-7V
Q722
C735
16V220
16V220
C788
C737
1
1000P
C724
R726
4.7K
FGND
Q722
16V10
C726
R727
15K
A9V 2SB0621AHA
POWER SUPPLY
C723
16V47
0.01
C725
Q723
B1ADCF000001
POWER SUPPLY
CONTROL
R786
2.2
-7V
I1
15 16 17 18 19 20 21
139
SA-PTX7EB / SA-PTX7EG
22 23 24 25 26 27 28
A
B
K6AD D724
ORMER
R735 B0EBNR000028
22
1 TH721
D4CAC8R00002
1
CN724 TO K
2 2 1 BRW
AC-INLET
CIRCUIT (J1)
C744
0.01
R736 R737 2 BLU
IN SCHEMATIC
400V180
3 100K 100K 3
C745
DIAGRAM - 26
C
B0ZAZ0000052
4 4
3
D726
5
6 1 2 R789 68K
7
IC725
C0DAAMH00015
8 D729 D727 D728 SWITCHING REGUALTOR
R741 W82
MAZ81300HL 1.2K B0HAJM000005 B0HAJM000005 0
7 OCP/BD
Q724
3300P
2SC3940ARA 6 FB
C747
C746
220P
D
C750
470P
CURRENT LIMMITING D730
SWITCH B0HAJM000005 5 OLP/SS
R742
47K
R743
35V22
4 Vcc
C749
4.7K
D731 D732
D734
C752
C797
C751
0.01
50V1
0.1
MAZ81800ML B0ACCK000005 3 S/GND
2
PC721 C754 D734
B3PBA0000402 R744 560P MAZ83000ML
1 D
W81
1K
0
1 4
R745
1K
D733 MAZ80620ML
R739
R747
0.27
100
2 3
FEED BACK
E
C748
3 2 1 F1BAF471A013
470P
DCDET
ZJ721
D3.3VD D749 B0ACCK000005
D5V D750 B0ACCK000005
A9V D752 B0ACCK000005
M9V D753 B0ACCK000005
F
R740
27K
MAZ80680ML
MAZ80680ML
MAZ81000HL
MAZ81000HL
R738
15K
Q721
D764
D759
D761
D762
Q722 2SC3940ARA QR730
+7V REGULATOR
B1GBCFGG0030
1000P
DC DETECT
C721
R722
R724
3.9K
FGND
15K
16V10
C726
R727
15K
DCDET1
R725
2.7K
D754
B0ACCK000005 G
R723 D12V
MAZ80750ML
150
16V100
Q723
C722
A+7V
D721
B1ADCF000001
MAZ81000HL
D751
POWER SUPPLY B0ACCK000005
R721
CONTROL
2.2
MAZ81300HL
D763
FGND
15V
D760
1/2 2/2
QR734 SA-PTX7EB/EG POWER CIRCUIT H
B1GBCFGG0030
DC DETECT
22 23 24 25 26 27 28
139
SA-PTX7EB / SA-PTX7EG
1 2 3 4 5 6 7
A
SCHEMATIC DIAGRAM - 22
J AUDIO (DSP) CIRCUIT :+B SIGNAL LINE :MAIN SIGNAL LINE
R300
2CH_L 1K R451 0 AXR0
2CH_R R301 1K R452
P301
MICON_GND
1000P
1000P
C300
C305
30 MICON_GND 1 0
SDA 14 13 12 11 10 9 8
B SDA 2
SCL
VINR
VINL
FMT
MD1
MD0
DOUT
BCK
SCL 3
DSP_RESET
DSP_RESET 4
F_SHIFT
IC300
F_SHIFT 5 C0FBAY000032
DGND
AGND
VREF
LRCK
DMIX_SEL
SCKI
VCC
VDD
DMIX_SEL 6 A/D CONVERTER
DA_MS
DA_MS 7
DA_MC 1 2 3 4 5 6 7
DA_MC 8 R453
DA_MD C319 C339 DS: AUDIO (DSP): SCHEMAT
DA_MD 9 0
MUTE DA: AUDIO (D-AMP): SCHEM
MUTE 10 0.1 0.1
C309
C314
SD
10
1
SD 11 R454
FANON C320 C329 C334 0
FANON 12
FANDET 10 0.01 10
FANDET 13
TO C DCDET1 14
DCDET1
RESET_MODULATOR
LB300 R455 +3.3V DA D5V
MAIN CIRCUIT RESET_MODULATOR 15 J0JBC0000041 10
C 2CH_L A5V
(CN505) 2CH_L 16
AGND R456 DA D5V
IN SCHEMATIC A_GND 17 LB301
2CH_R R302 J0JBC0000041 10
DIAGRAM - 17 2CH_R 18 DVD_C 1K
R457 0 AXR0 SD
DVD_C SD DA
DVD_C 19 DVD_SW R458 FANON
DVD_SW R303 1K FANON DA
DVD_SW 20 RESET_MODULATOR
DVD_SL 0 RESET_MODULATOR DA
1000P
1000P
C301
C306
DVD_SL 21 FANDET
DVD_SR 14 13 12 11 10 9 8 FANDET DA
DVD_SR 22 MUTE
VINR
VINL
FMT
MD1
MD0
DOUT
BCK
DVD_FL MUTE DA
DVD_FL 23 SDA
A_GND 24 IC301 SCL
SDA DA
DVD_FR
DVD_FR 25 C0FBAY000032 DGND DCDET1
SCL DA
AGND
VREF
LRCK
SCKI
DCDET1
VCC
VDD
A/D CONVERTER DA
LO_L/WL_SUB 26 AGND
LO_R 27
HP_L 1 2 3 4 5 6 7 BCK_R
D HP_L 28
C321 C340
R459
A_GND 29 ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo