Demodulator Schematic Diagram - JVC HR-S6850EU Service Manual

4.12

DEMODULATOR SCHEMATIC DIAGRAM

5
1 4 DEMOD
4
TO
3
MAIN(TUNER)
CN6701
NC
I2C_DATA
I2C_CLK
TU_A_MUTE
DEMOD_[R]
DEMOD_[L]
SW5V
GND
COMP
SIF
L6702
1µ
R6721
3.9k
Q6701
C6732
2 2SC3354
0.01
R6723
47
R6722
4.7K
C6733
0.0022
1
A B
The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only.
Note :
When replacing the parts , refer to the Parts List.
C6701 C6703
2.2 /50 2.2 /50
C6702 6800p
R6701
1k
# R6702
OUTL
C6704 6800p
R6703
1k
#
R6704
OUTR
V DDA1
R6705
10
V SSA1
C6705
0.47
V SSD1
R6706 K6701
10 600
V DDD1
C6706
0.47
V SSD2
# R6707 # K6702
3.3 600
V
DDD2
# C6707
0.47
TP2
NICAM
#
C6708
0.47
TP1
#
L6703 R6726
3.3µ
#
C6740
220p
B6702
#
C6734 # R6709
0.01 39k
#
R6724 R6725
220 100
# C6709
0.047
# C6710
0.33
C D
R6719
3.3
#
R6720
10
#
C6727
0.47
C6728
0.01
C6730
47 /16
C6729
2.2 /50 K6707
600
C6731
0.01
SCK
#
C6726
0.47
WS
# C6725
0.47
# R6718 3.3k
SDO
C6724 100p
R6717 100
SDA
C6723 100p
K6706
600
R6716 100
# IC6701
SCL
K6705 # K6704
TDA9874AH
C6722
600 600
0.47
V DDD3
V SSD3
# C6721 0.22
CRESET
C6720
K6703
1 /50
600
SIF1
C6719
0.01
V ref1
C6718
0.22
SIF2
# C6717
0.22
# R6714
4.7k
# C6716
C6712 0.47
27p
X6701
# R6708
24.576
10k # #
MHz
R6712 R6713
2.7k 10
CH
# #
B6701 C6715
0.0047
# C6711 # D6701
/50 0.033 1SV214
E
4-25 4-26
# DIFFERENCE TABLE
V12 EK/ARC V12 EU/MS
V13/V14
IC6701 TDA9874H TDA9874AH
R6707 10 NOT USED
R6708 10k 0Ω
R6709 39k NOT USED
R6710 39k
NOT USED
R6713 10 NOT USED
R6720 10 NOT USED
R6725 100 NOT USED 100
R6715
R6726 1k 2.2k 1k
10
C6707 0.47 NOT USED
# R6727
1k C6710 0.33/50
NOT USED
C6711 0.033 NOT USED
C6712 27p NOT USED
C6713 27p 0Ω
C6714 0.0012 NOT USED
C6734 0.01 0.01
NOT USED
NOT USED
C6740 220p NOT USED
L6701 3.3µ NOT USED
D6701 1SV214 NOT USED
K6702 600 NOT USED
R6702,R6704,
R6712,R6714,
R6717,R6718,
NOT USED
C6708,C6709,
C6715,C6717,
C6721,C6725,
C6726,C6727,
B6701
F
p20130001a_rev1
G H