Panasonic NV-FJ623EC, Service Manual

Page: 93 / 152

8.8. TV DEMODULATOR PACK SCHEMATIC DIAGRAM
1.6
(AMP)
2.4 4.0 0.1 1.6 5.0 2.8 2.8 3.3 2.2 2.6 2.4
1.3 0 1.8 4.3 4.3 3.3 2.2 2.7 3.0 1.6 3.1 2.4
3.3
3.6
2.6
5.0
2.6
2.4
10KB
VR0701
3.3M
R0745
50V2.2
C0707
0
R0713
220
R0741
SIF/QPSK
470
R0740
2SD601A
Q0702
120P
C0721
150
R0742
1K
R0743
VLF1416
X0701
10K
R0729
10K
R0730
180
R0711
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE. ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
AUDIO SIGNAL PATH VIDEO SIGNAL PATH
(D-10) RF SECTION DU7601 TO POWER SUPPLY/
AGC
RF
AGC
IF
AMP
VIF
AMP
1ST
AMP
AFT
FLL VCO LPF
AGC
DET
SIF
1ST
X
DET
APC
X
DET
VIDEO
X
TRAP
AMP
EQ
SW
AMP
S PLL
CONT
FIL
DEEMPHP
DET
FM
AMP
LIM
BPF
X
BPF
LA75503
IC0701
100
R0725
3P
C0715
16V22
C0711
22K
R0715
GND
IF
AGC
4MHz
4
3
2
1
(TO TUNER UNIT)
PP0701
0.18u
L0701
VLF1493
X0704
0.01
C0710
2.2u
L0703
5 4 3 2 1
6 7 8 10
0.1
C0712
4700
R0719
0.033
C0704
1
C0714
6V330
C0713
10K
R0708
1
C0701
1
C0703
1000P
C0702
39K
R0707
4700
R0705
0
D0702
EVQ5EC082P
T0701
3 2 1
4 6
33P
C0717
0.47
50V
C0708
0.1
C0719
470
R0717
0
R0727
220P
C0724
24 23 22 21 20 19 18 17 16 15 14 13
12 11 10 9 8 7 6 5 4 3 2 1
GND
TUNER 5V
TUNER VIDEO
AFC S-CURVE
9
8
7
6
5
4
3
2
1
DU7601-27
DU7601-26
DU7601-25
DU7601-24
DU7601-23
DU7601-22
DU7601-21
DU7601-20
DU7601-19
PK0701
8 7 6 5 4 3 2 1
F
E
D
C
B
A
NV-FJ623EC/ECN
TV DEMODULATOR PACK SCHEMATIC DIAGRAM
40