Panasonic SA-XH170EB Service Manual page 101

29 30 31 32
SCHEMATIC DIAGRAM - 9
A MAIN(MICON) CIRCUIT
TO MAIN(MICON)
CIRCUIT (2/5)
R2554
4.7K
D2554
DZ2J075M0L
Q2556 Q2557
B1GBCFLL0043 B1GBCFLL0043
SWITCH VIDEO MUTING
D2747
DZ2J110M0L
Q2719
B1GBCFJJ0041
DC DETECT
K2700
0
ZJ2003*
CHASSIS GROUND
P1
HD: MAIN(HDMI): SCHEMATIC DIAGRAM - 1 ~ 6
MI: MAIN(MICON): SCHEMATIC DIAGRAM - 7 ~ 11
NOTE: " * " REF IS FOR INDICATION ONLY
33 34 35
: +B SIGNAL LINE : -B SIGNAL LINE : AUX/TUNER/TV AUDIO INPUT SIGNAL LINE
WIDE1
VMUTE2
R2553
820
FUNC_SW
Q2555
B1ABCF000176 PW_+18V
SWITCH
PGND
C2563
0.1
DGND
DC_DET1
Q2709
PW_D+5V
B1ABCF000176
R2737
DC DETECT 39K
PW_+9V_1
R2738
33K
PW_-9V
GND
PW_M+9V
PW_+12V
PW_+3.3V
MGND
PW_+9V
36 37 38
: AUDIO OUTPUT SIGNAL LINE : FM SIGNAL LINE : USB SIGNAL LINE
R2908
10K
R2920 R2921
8.2K 39K
C2962 R2929
0.01 3.6K
Q2903
B1DGDC000002
+5V VOLTAGE REGULATOR
1 2 3
G
D
S
L2700 L2908 L2904
6 5 4
0 J0JHC0000107 G0C330M00002
R2922
10
C2704 C2982 C2902 D2912
6.3V220 10 6.3V1200 B0JCPG000028
C2983
K2703 K2712
1
0 0
Q2904
B1BACD000018
K2905
+9V VOLTAGE REGULATOR
0
C2909
0.1
K2705 0
C2908
10V120
C2905
1
1/5 2/5 3/5
4/5 5/5
101
39 40 41
IC2901
C0DBAYY00729
2CH SWITCHING REGULATOR
CONTROLLER
C2953
C2973
1200P 0.1
1 20
CT VREF
2 DT2 DT1 19
C2971 C2964
0.1 0.1
3 SS2 SS1 18
R2924
5.6K
4 INV2 INV1 17
C2976 R2923 R2918 C2972
0.015 2.2K 3.3K 0.22
5 16
FB2 FB1
R2927
10K
6 GND STB 15
R2914 R2916
22K 22K
7 OCP2- OCP1- 14
R2915 C2917 R2936 C2981 R2917 R2926
0 0.01 4.7K 1000P 3.3K 8.2K
OCP2+ OCP1+
8 13
R2935
0
9 C5V VCC 12
R2925
56K
10 OUT2 OUT1 11 C2966 C2977
1 0.22
R2930
C2974
1 2.7K
C2963 C2911
680P 680P
1 2 3
Q2902
G
B1DGDC000002
D
+12V VOLTAGE REGULATOR
S
L2903 6 5 4
G0A330ZA0045
C2903
16V820 D2911
C2907
B0JCPG000028
35V56
C2904
56P
R2900 K2710
1.2K 0
R2901
100
D2910
DZ2J100M0L
SA-XH170EB/EG,SA-XH175EP MAIN(MICON) CIRCUIT
42
A
B
C
D
E
R2919
10
C2901
35V220
F
G
H