Panasonic SA-AK270EB / SA-AK270EG Service Manual ▷ View online
18.6. (H) Deck Mechanism Circuit & (L) AC Inlet Circuit
:+B SIGNAL LINE
:-B SIGNAL LINE
SCHEMATIC DIAGRAM - 9
DECK MECHANISM CIRCUIT
SA-AK270EB/EG DECK MECHANISM/AC INLET CIRCUIT
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
D
E
F
H
G
C
AC INLET CIRCUIT
TO
3 2 1
DZ5701
AC IN
230-240V 50Hz
P5701
C5705
F1BAF1020020
1000P
C5704
F1BAF1020020
1000P
ZJ5701
3 2
ZJ5702
2
3
4
1
L5703
ELF22V020A
ERZV10V511CS
775V25A
C5701
F0CAF334A087
0.33
ZA5701
ZA5702
F1
1
R5701
4.7
RED
BLK
SMPS CIRCUIT
IN SCHEMATIC
DIAGRAM -14
TO
DECK (CP1902)
ON SCHEMATIC
DIAGRAM- 8
3
4
1
2
3
2
6 7
4 5
1
9
8
39K
820
VREF+
PHOTO
VREF-
HALF
2
PL
PL
GND
MODE
HALF
1
IC971
CNB13030R2AU
PHOTO INTERUPTOR
S975
VRECINH-F
S971
MODE
S972 HALF
CS971
R973
D971
R972
MA2C16500E
250V T5AH
L5701
ELF15N035AN
2
3
4
1
C5706
F1BAF1020020
1000p
C5707
F1BAF1020020
1000p
SA-AK270EB / SA-AK270EG
89
18.7. (I) USB Circuit
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
D
E
F
H
G
C
: + B SIGNAL LINE
: USB SIGNAL LINE
SCHEMATIC DIAGRAM - 10
SA-AK270EB/EG USB CIRCUIT
USB CIRCUIT
TO
MAIN CIRCUIT
(CN3200) IN
SCHEMATIC
DIAGRAM - 4
C904
16V10
0.1
C902
16V10
C906
16V47
C915
0.1
C905
0.1
C901
L900
G1C100K00019
X900
H0D120500009
0
R904
C908
22P
C907
18P
2.2K
R957
22K
R950
R914
0
R972
1K
R971
1K
C914
0.1
1K
R901
1K
R902
R952
24
CKA3
24
R953
CKA4
LB951
J0JHC0000045
15K
R955
15K
R954
C953
6.3V100
CKA1
LB952
J0JHC0000045
2
5
G
1
4
6
G
3
CKA2
R951
0
6
7
5
2
4
3
8
1
IC951
C0DBZYE00002
VOLTAGE REGULATOR
C931
16V10
0.1
C952
0.1
C951
C903
0.1
J0JAC0000021
LB848
J0JAC0000021
LB843
J0JAC0000021
LB845
J0JAC0000021
LB935
J0JAC0000021
LB936
J0JAC0000021
LB933
J0JAC0000021
LB934
J0JAC0000021
LB840
J0JAC0000021
LB841
J0JAC0000021
LB938
J0JAC0000021
LB846
LB852
J0JHC0000045
LB850
J0JHC0000045
LB930
J0JHC0000045
LB932
J0JAC0000021
6
5
8
9
9
11
12
12
10
18
15
17
16
20
19
13
14
14
7
2
1
4
3
22
21
P901
0
R906
0.1
C911
0.1
C912
23
58
45
44
47
48
46
30
31
32
43
40
41
35
37
36
33
34
39
38
42
28
25
26
24
27
29
55
56
50
51
49
53
54
52
57
62
63
61
19
18
20
3
2
5
4
6
8
7
1
64
15
16
9
13
10
12
11
14
17
22
21
59
60
IC900
MNZSFB5KJM2
USB CONTROLLER IC
0.1
C913
DGND
D5V
NRST
P01
P04
DGND
P03
STCLK
P91/SBIO
P81/D8
P73/D5
P00
P02
P66/D0
P72/D4
P70/D2
P71/D3
P75/D7
D3.3V
VSS
P82/D9
DGND
D1.8V
VDDI
VDD33
TERR
P21/NCE0
VSS
CD_CLK
CD_ST
AT
STREQ
PD4/NCE2
CD_DA
TA
P77/NRE
VERR
VDD5
I2C_REQ/WR_START
I2C_CLK/WR_END
I2C_DATA/ERROR
DGND
P85/D12
P86/D13
P83/D10
P84/D11
P40/D15
P87/D14
P67/D1
USB_CTRL
PA
7
CD_MLD
STIN
VDDI
D1.8V
VPP
OCD_SDA
VDDI
OSCI
VSS
NRST
D1.8V
AVDD
VSS
OSCO
MMOD0
USBNOC
VDD33
USBNPP
USBD+
USBD-
PD6/IRQ3
CD_NRST
MMOD1
OCD_SCL
USB_POWER
D3.3V
DGND
DGND
DGND
VERR
I2C_REQ
I2C_REQ
DGND
STIN
TERR
DGND
MMOD
DGND
DGND
CD_STAT
STREQ
D3.3V
CD_MLD
M_NRST
STCLK
CD_NRST
CD_DATA
CD_CLK
I2C_DATA
D5V
DGND
I2C_CLK
DGND
I2C_CLK
DGND
DGND
VDD
OUT
OUT
FLAG
OUT
VDD
D-
D+
D+
VSS
USB CONNECTOR
P903
VBUS
DGND
VBUS
D-
GND
CTRL
R903
R958
100K
0
SA-AK270EB / SA-AK270EG
90
18.8. (J) D-Amp Circuit
SCHEMATIC DIAGRAM - 11
D-AMP CIRCUIT
SA-AK270EB/EG D-AMP CIRCUIT
1/2
2/2
5
: MAIN SIGNAL LINE
TO D-AMP
SECTION (2/2)
: +B SIGNAL LINE
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
6
K5255
0
K5251
0
K5253
0
FAN_GND
B1ADCE000012
Q5603
R5608 10K
R5604 1.2K
1.2K
R5611
R5603 10K
R5602
10K
Q5604
B1ABCF000176
R5609
10K
1M
R5507
390P
C5552
X5500
X5500
H2A6023A0011
MAZ80510ML
D5503
10
C5555
0.1
C5554
1M
R5508
100P
C5553
R5510 470
C5562
6.3V1000
FAN_DC
FAN_GND
0.1
C5560
R5511
22
100P
C5561
SW+5V
5
6
4
1
2
3
9
11
13
14
12
10
7
8
IC5501
C0JBAF000716
R5505
100
47P
C5558
5
6
4
1
2
3
9
11
13
14
12
10
7
8
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D-TYPE FLIP-FLOP
IC5500
OSC
SW+5V
SW+5V
MOD_DA
MUTE_F
DC_DET
Q5101
B1ABCF000176
R5110 6.8K
1.2K
R5023
AGND
0.1
C5033
B1ABCF000176
Q5102
MODE2
CD2
D1
SWITCH
SWITCH
Q5601
B1ABCF000176
SWITCH
DC DETECT
DC DETECT
GND
D2
SD1
SD2
6Y
5A
6A
VCC
O2
4Y
CP2
VCC
4A
5Y
3A
2A
2Y
1A
1Y
3Y
O1
O1
O2
CP1
CD1
GND
R5504
22
FHOP
H2A7003A0011
0.01
C5550
D5502
D5501
100P
C5557
0.01
C5556
X5501
X5501
MA2J11100L
D5501 - D5502
R5506
1M
C5551
390P
C5559 47P
W5071
0
W5059
0
120K
R5020
FR_+
FL_+
R5019
68K
4
3
3
1
2
FRONT L+
FRONT L-
FRONT R+
FRONT R-
FR-
FL-
FL+
FL+
FR+
TO SPEAKERS
JK5001
3 2
1
ZJ5410
1
6.3V100
C5133
R5671
0
SA-AK270EB / SA-AK270EG
91
SCHEMATIC DIAGRAM - 12
D-AMP CIRCUIT
B
TO
MAIN CIRCUIT
(CN2341)
IN SCHEMATIC
DIAGRAM - 3
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 13
SA-AK270EB/EG D-AMP CIRCUIT
5
1/2
2/2
TO D-AMP
SECTION (1/2)
: MAIN SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
15
16
17
18
19
20
21
22
23
24
25
26
27
28
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A
B
D
E
F
H
G
C
6
B0HCMM000019
B0HCMM000019
B0HCMM000019
B0HCMM000019
B0HCMM000019
B0HCMM000019
K5302
C5051
0.1
C5052
0.1
0.1
C5050
C5053
0.1
2
4
3
1
G0B9R5K00003
G0B9R5K00004
FL+
FL_+
FR-
FR+
FR_+
FL-
C5150
C5151
6
5
5
8
9
11
12
10
14
15
13
7
2
1
1
1
4
3
3
17
17
16
CN5050
C5020
0.1
C5008
0.015
220P
C5010
0.1
C5019
R5004
10
R5005
10
220P
C5012
0.1
AGND
0.1
C5514
0.1
C5519
0.1
C5515
C5518
0.1
5
6
1
3
4
2
8
7
7
CN5500
1000V22
C5040
VSSP
VSSP
C5510 35V470
C5511 35V470
C5521
0.1
10
R5010
VDDP
C5520
0.1
VDDA0
VDDP
0.1
C5018
C5030
220P
3 2
1
ZJ5400
C5445
C5004
0.47
R5002
5.6K
C5002
0.47
5.6K
R5000
C5001
1000P
330P
C5006
C5025
0.1
C5024
0.1
10
R5011
OSC
IN+_FR
IN+_FR
IN+_FL
IN+_FL
VSSA0
C5014 0.68
C5015 0.68
R5006
22
R5007
22
R5031 5.6K
C5016
0.1
R5030 5.6K
0.1
C5017
2
4
3
1
L5000
G0A150L00003
C5000
1000P
5.6K
R5003
0.47
C5005
1000P
C5032
R5008
100
C5007
330P
R5001 5.6K
C5003 0.47
2
4
3
1
L5002
L5001
220P
C5011
0.1
C5023
0.1
C5021
C5028
0.1
C5031 0.22
C5009
0.015
220P
C5013
19
21
23
22
20
10
2
1
3
7
8
9
4
5
6
12
15
14
17
18
16
13
11
C5022
0.1
AUDIO DIGITAL POWER AMP
MODE2
SGND1
OUT1
VSSP1
PROT
VDDP1
BOOT1
OUT2
BOOT2
VSSP2
VSSD
VSSA2
VDDP2
STABI
VSSA1
AGND
AGND
FRONTL
FRONT R
SIGNAL A_GND
IN1-
VDD
GND
VSS
VDD
GND
OSC
IN1+
FAN DC
FAN_DC
FAN GND
FAN_GND
VSS
VDDA1
MUTE F_SW (MODE 2)
MUTE_F
MOD_DA
MOD_DA
FHOP
OSC2/FAN
DC_DET
DC_DET
IN2+
MODE
SGND2
IN2-
VDDA2
IC5000
C1BA00000487
1000P
1000P
FHOP
W5007
0
1
0.1
C5450
0
D5002
D5004
D5004
D5001
D5003
D5003
C5026
0.1
C5029
0.1
AGND
AGND
SA-AK270EB / SA-AK270EG
92
Click on the first or last page to see other SA-AK270EB / SA-AK270EG service manuals if exist.