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8.12. TV DEMODULATOR PACK SCHEMATIC DIAGRAM
F
E
PK0701
DU7601-19
DU7601-20
DU7601-21
DU7601-22
SIF/QPSK
DU7601-23
AFC S-CURVE
DU7601-24
TUNER VIDEO
DU7601-25
TUNER 5V
DU7601-26
D
DU7601-27
GND
C
B
PP0701
(TO TUNER UNIT)
4MHz
A
AGC
IF
GND
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE.
1
1
2
3
1.6
4
2.4
5
2.6
6
5.0
7
8
9
1
2
3
4
2
VIDEO SIGNAL PATH
R0713
0
R0742
150
Q0702
2SD601A
(AMP)
3.6
3.3
R0741
220
2.6
R0743
1K
L0701
0.18u:EG/EC
0.22u:B
NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS S
3
AUDIO SIGNAL PATH
C0721
120P:
EG/EC
82P:B
IC0701
LA75503
VR0701
10KB
X0701
VLF1416:EG/EC
VLF1417:B
ORDERING.WHEN YOU ORDER A PART,PLEASE REF
4
C0724
220P:
EG/EC
330P:B
3.1
2.4
1
BPF
X
BPF
LIM
AMP
FM
DET
DEEMPHP
24
2.6
2.4
D0702
0
R0705
4700
R0707
39K
5
50
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