Panasonic SA-AK240GCP Service Manual page 66

SA-AK240GCP
1
2
3
4
R2873
22K
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
STAND_BY 50
NC 49
NC 48
DCDET 47
PCONT/EFP/CS
46
NC 45
NC 44
EE_DAT 43
EE_CLK 42
IC2801
EE_CS/EFP/EPH
41
C2CBYY000053
MUTE_A 40
MICROPROCESSOR
MUTE_DA 39
REG1 38
REG2 37
REG3 36
REG4 35
REG5
34
REG6 33
REG7 32
REG8 31
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
C2821
R2882
100P
10M
Q2936
W2559
0
R2937
W2555
10K
0
W2556
R2936
1K 0
Q2937
W2560
0
2 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13
CN2806
TO
PANEL CIRCUIT (CN6601) ON
SCHEMATIC DIAGRAM-4
NC NC
8 (NOT SUPPLIED)
FAN
VCC GND 7
IC2871
Q2942
B1ACKD000006
EE_CS 6
FAN MOTOR ON/OFF SWITCH
MOT_12V
EE_CLK EE.DAT 5
R2945 C2945 C2944
10K 16V47 100P
D2946
B0ADCJ000020
3
R2942
5.6K
2 1
R2943
10K
STANDBY
R2949
47K
W2536
W2571
0
IDCDET
0
PCONT
R2948
100
C2947
6.3V100
W2537
W2572 R2946
0
MUTE_A 0 56K
MUTE_D_AMP R2947 W2573
27 0
R2823 10K
R2825 10K
R2827 0 W2547 0
R2851
47K
W2548 0
W2549
0
C2853
0.1
R2810 22K
Q2803
B1GBCFJJ0051
RESET (MICRO-P) SWITCH
R2883 C2883
R2886 R2881 C2803
330K 18P
1M 220 1
IN OUT
D2803 C2802
X2802 B0ACCK000005 50V2.2
C2882
X2801
GND
H2B100500004
18P
H0A327200115
W2552
0
9 8 7 6 5 4 3 2 1
12 11 10
R2940
820K
R2941 C2941
10K 16V33
Q2943
IDCDET
R2939
47K
Q2949
C2948
Q2948 10V220
Q2943
Q2948,Q2949
B1ABCF000176
B1ABCF000176
FAN SUPPLY
DC DETECT SWITCH
CONTROL SWITCH
P_GND
R2894 W2535
47K 0
VREF+
D2811
B0ADCJ000020
CD7.5V
1
3
SW5V
2
D2813
B0ACCK000005
+15V
W2518
0
IDCDET
D2801
B0ACCK000005
66
+15V
FAN
1
TO FAN
2
CN2810
SW5V SW5V
12
-9V -VCC
11
+15V +15V
10
TO
MOT_12V MOT_12V
9 POWER
STANDBY STANDBY
CIRCUIT
8
IDCDET DCDET (CN5103) ON
7 SCHEMATIC
DIAGRAM-6
6
CD8V CD8V
5
PCONT PCONT
4
UP_GND UP_GND
3
C2753 0.1 FL_GND
2
P_GND
P_GND
1
CN2808
SA-AK240GCP MAIN CIRCUIT
4/4