SA-PM38EG, SA-PM38EF, SA-PM38EB, SA-PM38EP, SA-PM48EG - Panasonic Audio Service Manual Supplement (repair manual). Page 8

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8
With reference to original service manual (section 21.5) on page 94 for Model No. SA-PM48EG-K.
B
 MAIN CIRCUIT
SCHEMATIC DIAGRAM - 5
 SA-PM48EG MAIN
 CIRCUIT
2/4
4/4
1/4
3/4
TO MAIN
SECTION (3/4)
TO MAIN
SECTION (2/4)
P1
AA
P1
1
C
TO
PANEL CIRCUIT
(CN900)
IN SCHEMATIC
DIAGRAM - 6
J
TO
TRANSFORMER
CIRCUIT (CN5903)
IN SCHEMATIC
DIAGRAM - 10
I
TO
POWER CIRCUIT 
(CN5102)
IN SCHEMATIC
DIAGRAM - 9
D
TO
HEADPHONE
CIRCUIT (CN950)
IN SCHEMATIC
DIAGRAM - 6
11
: +B SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE
: CD/TAPE AUDIO INPUT SIGNAL LINE
: FM/AM SIGNAL LINE
: iPod AUDIO INPUT SIGNAL LINE
: USB SIGNAL LINE
15
16
17
18
19
20
21
22
23
24
25
26
27
28
I
J
L
M
N
P
O
K
R837
1K
R842
4.7K
R840
10K
15K
R848
HP_SW
HP_L
HP_R
TAPE_EJECT
2
3
1
5
4
CN902
FL_DATA
FL_CLK
FL_CS
VOL_JOG1
D3.3V
KEY1
RMT
KEY2
VREF-
6
8
9
7
2
1
4
5
3
10
11
CN901
SYS3.3V
CD_OPEN_SW
REST_SW
HALT
AGND
IN_L
AMP_MUTE
DC_DET
PCONT2
IN_R
2
4
3
1
6
5
CN200
R836
100
R828
100
47K
R830
10K
R847
USB_SCL
USB_SDA
STAT
TU_SDA
TU_STEREO
LOADING
R835
100
R841
10K
R846
100
R845
100
R826
1K
R832
100
VCC
M9V
4
5
1
3
2
7
6
CN600
10K
R859
R839
10K
100
R889
CD_RST
UART_IN
UART_OUT
DECK_MTR
REC_H
VREF-
DECK_PL
PHOTO
C862
470P
IPOD_DET
R862 10K
470P
C863
IPOD_5V
IPOD_ACC3.3
R854
100
R855
100
220
220
R852
100
R861
R860
R866
15K
R865
10K
R856
12K
TU_CLK
TU_TUNED
IPOD_PCONT
4.7K
R864
4.7K
R863
R857
100
ASP_CLK
ASP_DATA
D851
470K
R853
R858
100
16V10
C851
VREF-
100P
C808
50V1
C809
R881
10K
Q802
B1GBCFJN0009
HP_SW
R805
4.7K
0.01
C810
RESET
50V1
C811
47K
R806
2
4
3
1
6
5
CN800
FOR
SOFTWARE
FL_CLK
10K
R811
FL_DATA
100
R808
100
R809
R802 220K
X801
X801
H4Z8004AA001
X802
X802
H0A327200097
100
R812
100
R807
C802
0.1
MUTE_HP
FL_CS
PCONT2
4.7K
R813
22P
C814
22P
C804
18P
C801
18P
C803
R815
100
VERR
USB_IRQ
TAPE_EJECT
MMOD
TERR
RMT
USB_RST
R884 15K
R888 1.8K
C882
4700P
C876
560P
C877
560P
C880 100P
C879 100P
C881
220P
A9V
DECK_AD1
VDD
R883 47K
C883
10V100
DECK_AD2
KEY1
KEY2
R887
10K
R885
4.7K
100
100
470
R876
R878
VREF+
R886
1K
R891
VOL_JOG1
AMP_MUTE
DC_DET
4.7K
R810
0.1
C878
220P
C812
220P
C815
220P
C813
100P
C826
100
R804
100P
C800
BLKCK
PCONT1
HALT
VREF-
GND
SYS3.3V
R890
10K
CD_MCLK
CD_MLD
CD_MDATA
79
77
76
78
49
47
48
50
74
71
72
67
68
56 55
58 57
52 51
54 53
65
66
61
62
59
60
64 63
70 69
73
75
10
8
7
9
12
11
99
100
95
94
96
97
90
91
89
93
92
98
4
6
5
2
1
3
81
82
80
86
87
88
84
83
85
45
19
17
15
14
16
18
43
23
21
20
22
41
24
39
37
33
35
34
29
30
27
26
28
32
31
36
38
25
40
42
44
13
46
IC800
RFKWMPM48EG
HP_L
HP_R
AGND
NC
3.3V
KEY1
RMT
HP_SW
TAPE_EJECT
VOL_JOG1
KEY2
FL_CS
FL_CLK
FL_DATA
STBY3.3V
VREF-
IN1_R
DC_DET
STBY
AMP_MUTE
AGND
IN2_L
PCONT
HALT
VCC
M+9V
M_GND
SYS3.3V
SYS_GND
[75] DAB_MODE
RDS_CLK
RDS_DATA
[74] RDS_CLK
VSS
OCD_SDA
STBY_3.3V
MMOD
OCD_SCL
MICONRST
VSS
OCD_SDA
VDD
OCD_SCL
MICONRST
VSS
OCD_SDA
OCD_SCL
MICONRST
CD_MLD
NC
1.8V
NC
NC
VSS
CD_RST
TU_SDA
OPEN_H
USB_SCL
RMT
VSS
STAT
BLKCK
NC
[26] HALT
CD_MCLK
NC
NC
NC
NC
AMP_MUTE
VDD
FAN_SW
DMT
[72] DAB_RX
DAB_PCONT
DAB_TU_SDA
DAB_TU_RST
DAB_TU_SCL
UART_IN
[73] RDS_DATA
PL_H
REC_H
UART_OUT
PHOTO
MOTOR_H
NC
CLOSE_L
VSS
NC
NC
NC
NC
IPOD_PDET
ASP_CLK
CRTIMER
IPOD_DET
IPOD_ACC3.3
DEMO_SETTING
REST_SW
CD_OPEN_SW
[52] TU_TUNED
[51] TU_CLK
TU_STEREO
[53] NC
MODEL_SELECT
IPOD_PCONT
DAB_RST
ASP_DATA
NC
VERR
USB_RST
NC
VREF+
REGION
VOL_JOG
NRST
3.3V
OSC1(8MHz)
TAPE_EJECT
OSC2(8MHz)
MMOD
[3] FL_CS
[2] PCONT2
[1] PCONT1
MICROPROCESSOR
FL_DATA/OCD_SDA
MMOD0
TERR
HP_SW
NC
NC
VSS
XI(32kHz)
USB_IRQ
VDD1.8V
XO(32kHz)
FL_CLK/OCD_SCL
MUTE_HP
USB_SDA
GND
KEY2
KEY1
DCDET
MK-IN2
MK-IN1
[27] DAB_DDOWFIC
CD_MDATA
D827
MA2J1110GL
D826
MA2J1110GL
MA2J1110GL
MA2J1110GL
D800
ADD
(C610)
C610
1
6.3V1000
10V100
C806
CHANGE
DELETE
(L801,SHORT CONNECTION)
DELETE
(L800,SHORT CONNECTION)
Display
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