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A
B
8
7
6
FROM SCALER
SP_AUDIO_OUT_R
SP_AUDIO_OUT_L
AUDIO_MUTE
5
FROM SUB MICON
SW_SPDIF
FROM REGULATOR2
P.CON+3.3V
AT+3.3V
FROM DVD_INTERFACE/AV_SWITCH
4
ZERO_MUTE
FROM REGULATOR
POWER_FAIL
GND
3
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
H-19
C
SOUND AMP MUTE SCHEMATIC DIAGRAM
20
C1004
W918
4.7
B
21
(16V 21-25)
C1007
W919
4.7
B
(16V 21-25)
R1005
W911
47K
MUTE SW
Q1000
KTC3875S_Y_RTK
D1002
BAT54WS
R1020
3.4
0
D1001
4.7K
DVD MUTE SW
3.4
Q1005
BAT54WS
KRA101SRTK
R1004
1K
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D
E
(MAIN PCB)
0
MUTE
R1008
0
Q1002
10K
KTC3875S_Y_RTK
0
2.9
0
MUTE
0
R1009
0
Q1003
10K
KTC3875S_Y_RTK
0
0
W889
1608
3.4
DVD MUTE SW
0
Q1006
0
SW
KTC3875S_Y_RTK
0
Q1001
KRA102SRTK
3.4
3.4
3.4
3.3
SW
0
Q1004
KTA1504S_Y_RTK
CAUTION: DIGITAL TRANSISTOR
D
E
F
G
TO REGULATOR
TO AV SWITCH
CAUTION: DIGITAL TRANSISTOR
F
G
19DV550P/19DV551P
H
8
7
FILTER_MUTE
6
AUDIO_ROUT
AUDIO_LOUT
POWER_GND
5
4
3
2
PCBF40
CMG130
1
H
H-20
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