Panasonic SA-XH50P Service Manual page 96

15 16 17 18
SCHEMATIC DIAGRAM - 2
: +B SIGNAL LINE
A BACKEND CIRCUIT
: CD/DVD AUDIO INPUT SIGNAL LINE
P3901
C3945
0.01
G2 G1 LB3906
J0JCC0000042
HOTPLG 19
+5V 18
CECGND 17
LB3905 J0JCC0000042
HDMISDA 16
LB3904
J0JCC0000042
HDMISCL 15
HDMI_ARC 14
LB3903 J0JCC0000042
CEC 13
CLK-
12
CLKGND 11
HDMI AV OUT
CLK+ 10
(ARC)
D0- 9
D0GND 8
D0+ 7
D1- 6
D1GND 5
D1+ 4
D2- 3
D2GND 2
D2+ 1
K3901
0
FRAME
G3 G4
K3902
0
K3903
0
TO BACKEND
CIRCUIT (1/6)
P1
19 20 21
: CD/DVD VIDEO INPUT SIGNAL LINE
: HDMI/AUX/TUNER/OPTICAL AUDIO INPUT SIGNAL LINE
R3950 C3944
R3949
100K 0.1
10K
PW_VREF
CEC_IN_OUT
R3942
220
S
G
Q3904
D
Q3901
B1CFHA000002
R3902
10K B1ABDF000026
SWITCH
SWITCH
HOTPLUG
M+9V
R3903
10K DDCCLK
VDDP_HDMI
DDCDAT
CLK-
CLK+
D0-
D0+
D1-
OPT_IN
D1+
D2-
D2+
SPDIF_SW
GPIO34
22 23 24
: AUDIO OUTPUT SIGNAL LINE
: VIDEO OUTPUT SIGNAL LINE
IC3952
C0CBCDC00063
+5V REGULATOR
NOISE
BYPASS
3 4
OUT
C3955
0.01
2 C3956
GND
1
1 VC IN 5
C3954
0.1
R3947
10K
K3904
0
R3906
4.7K
Q3903
S
G
B1CFHA000002
D LEVEL SHIFTER
R3907
R3904 Q3902
S
4.7K
G B1CFHA000002
LEVEL SHIFTER
D
R3905
R8016
100
IC3954
C0JBAR000433
LB3907 MULTIPLEXER
J0JCC0000308
VCC A
8 1
7 /ST B 2
C3958 R3908
0.1 10K
6 SELECT /Y 3
5 Y GND 4
TO BACKEND
CIRCUIT (5/6)
96
25 26 27
2K
2K
TO BACKEND
CIRCUIT (3/6)
C3968
1
C3971
0.1
R3955
51
R3958
LB3909
10K
1Y 1A
J0JHC0000045 6 1
C3972 R3959
5 VCC GND 2
0.1 27K
C3970 C3967
R3956
100 1 0.1
4 3
2Y 2A
R3900
100K
IC3953
C0JBAB000986
INVERTER
1/6 2/6 3/6
4/6 5/6 6/6
SA-XH50P/PC BACKEND CIRCUIT
28
P1