Panasonic SA-HT680PL Service Manual page 78

SA-HT680PL
SCHEMATIC DIAGRAM-6
MAIN CIRCUIT
20 19 18 17 16 15
1 2 3 4 5 6
C2131 C2232
3300P 3300P
FR
23 24
:+B SIGNAL LINE :-B SIGNAL LINE :MAIN SIGNAL LINE
IC2801
C0DAAZG00012
DC-DC Converter IC
R2823
1K
D2803
C2804 R2826
B0ACCK000005
100P 4.7K
Q2023
B1BACD000018
Regulator
L2803
R2850
G0A200D00002
8.2
C2088 R2852 R2854
0.01 2.2K 2.2K
D2819
B0ACCK000005
R2851
100
C2087
16V100
C2857
16V100
D2031
B0ADCJ000020
2
Q2025
3
B1GBCFJA0028
1
DC Detect Switch
2
N
C2089
3
50V4.7
1
C2858 D2032
16V100 B0ADCJ000020
SS CLK WIDE1
SS DAT
14 13 12 11
IC2012
C1BB00000979
Analog Surround IC
AUX L
7 8 9 10
R2130
5.6K
C2211
0.082 AUX R
R2230
5.6K
C2818 680P
C2819 680P
25 26 27
:DVD(VIDEO) SIGNAL LINE
IC2803
C0DBEZG00021
LD0 Regulator
C2835 R2811
1 680
1 2 3 4 5 1 2 3 4 5 6
C2800
25V220
C2825
R2845
1
R2828 680
C2829 R2827
4.7K
1000P 1K R2825
470
R2844 C2814
L2801 G0ZZ00001930 1K 6.3V330
D2801 C2840 D2802
B0JCPD000025 6.3V820 B0BC7R500001
LM LOUT
R6522
220
C6932
50V22
D6503 C6930
MA2J72800L 50V1
R2857
15K
R6529
Q6501
22K
B1ABCF000131
R2831 R2832
Switch
180 180
C6935 R6544
50V2.2 100K
1 2
D6501
D2823 C2830
B0ADCC000002
B0BC5R000009 16V100
3
R2858
39K
R2812
2.2K
R2807 10K
C2044 C2046
Q2004 6.3V1000 6.3V330
B1GBCFJN0033
Switch
R2886 R2887
75 75
R2129 10K
C2809 C2812
C2138
100P 100P
220P
R2229 10K
C2238
220P
C2833 0.1 6 7 8 9
AV JACK
JK2001
K1U717B00004
AUX
28 29
78
R2870
1K
C2813 C2828
1 6.3V330
IC2802
C0CBADG00023
5V Regulator
1 2 3
D2810 D2831
B0EAKM000117 B0EAKM000117
D2811 D2809
R2848 R2824
B0EAKM000117 B0EAKM000117
330 C2848 1.8K
1
R2849
82K
R6517
2.7K
R6518
D6504 C6933
330K
MA2J72800L 50V1
C6931 R6935
R6524
50V1 100K Q6502
22K
B1ABCF000131
Switch
R6514 C6936 R6501
100 50V2.2 100K
1 2
R6527 R6937
82K 47K
D6502
B0ADCC000002
R6525 C6937
3
1K 50V22
C2039
0.01
C2047 C2040 C2042
6.3V330 6.3V1000 6.3V1000
16 15 14 13 12
R2888 R2889 R2890 R2891
75 75 75 75
1 2 3 4 5
C2810 C2808 C2807 C2805
100P 100P 100P 100P
R6500
47K
10 11 12 13 14 5 1 2 3 4
VIDEO S-VIDEO
30 31 32
R2822 470
C2849 6.3V100
Q2805
B1ACKD000005
Regulator
C2843
0.01
Q2806
B1ABCE000016
Regulator
D2808
R2847 B0ACCK000005
470
D2870
B0ACCK000005
LM RIN
R6520
2.7K
R6521 R6934
330K 100K
C6934
50V1
R6508
100
R6528 R6936
82K 47K
R6526 C6938
1K 50V22
C2028
1
CR R
11 10 9
IC2006
C9ZB00000466
Video Buffer IC
6 7 8
C2034 C2029
0.1 1
L2010
ELESNZ20JA
SA-HT680PL MAIN CIRCUIT
33