Panasonic SA-AK631PL Service Manual page 68

SA-AK63 1PL
SCHEMATIC DIAGRAM - 7
MAIN CIRCUIT
MCLK
RESTSW
CHG_HLF
CHG_CW
CHG_CCW
CHG_SW1
CHG_SW2
CHG_PLR
CHG_AD2 R2856 100
CHG_AD1
R2857 100
DECK2
100
KEY3 R2858
100
R2859
KEY2
R2860 100
KEY1
PHOTO_2
R2861
100
R2862
PHOTO_1
100
VREF+
VCC
R2867
100K
C2831 0.022
C2832 330P
R2876 22K
R2877 22K
C2833
330P
: +B SIGNAL LINE
80 79 76 75 74 73
78 77
81 MCLK
82 /RESTSW
CHG_HLF
83
CHG_CW
84
85 CHG_CCW
86 CHG_SW1
87 CHG_SW2
88 CHG_PLR
89 CHG_AD2
CHG_AD1
90
91 DECK2
KEY3
92
KEY2
93
KEY1
94
PHOTO_2
95
AVSS
96
97 PHOTO_1
VREF
98
99 AVCC
100 DEMO
1 2 3 4 5 6 7 8
R2801
C2821 100P 10K
C2820 100P
C2819 100P
C2818 100P
3 2 1
4
IC2802
C3EBDG000052
E-EPROM IC
(NOT SUPPLIED)
5 6 7 8
R2878
4.7K
72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57
IC2801
C2CBJG000561
MICROPROCESSOR
24
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
R2881
220
R2886
1M
R2883
330K
IN OUT
C2840
R2882
18P
10M X2801
GND
H0A327200073
H2B100500004
C2841
18P
68
R2827
56 55 54 53 52 51
10K
NC 50
49
NC
NC 48
R2834
47
DCDET
46
PCONT/EFP_/CE
45
NC
44
NC
43
EE_DAT
42
EE_CLK
EE_CS/EFP_/EPM 41
MUTE_A 40
MUTE_H 39
REG1 38
REG2 37
REG3 36
REG4 35
REG5 34
REG6 33
REG7 32
REG8 31
25 26 27 28 29 30
R2804 47K
R2805 47K
R2807 10K
R2806 10K
C2851
0.1
R2891 47K
R2810 22K
R2892
C2853
C2852
0
0.1
16V100
C2854
16V100
Q2806
C2857
50V2.2
C2856
1
B1GBCFJJ0039
D2804
B0ACCK000005
X2802
VREF+
R2830
10K
DCDET
1K PCONT
EE_DAT
EE_CLK
EE_CS
MUTE_A
MUTE_H
BUSY
CLK
SW5V
D2802
B0ADCJ000020
SYS6V
R2811
0
VREF+
Q2806
POWER RESET
CONTROL SWITCH