Hi-Fi/Demodulator Schematic Diagram - JVC HR-XV1EK Service Manual

A B
8
7
6
5
W827
NC NC NC
4.8 4.8 2.5 1.2
33 32 31
0
NC
SYSCLK
4.8
C804
VDDD4
0.1 B
W826 0
VSSD4
0
4 NC P1
C802
2.4
MONOIN
50V 1 KA
2.4
NC EXTIR
2.4
NC EXTIL
C801
2.4
VREF2
6.3V 47 KA C805 0
NC P2
0.01 B
W825 4.8
VDDA3
VSSA3
0
W828
3
NICAM IC
1 2 3
IC801
2.4 0.3 4.8
TDA9874H
C815
0.1
2
1
A B
C

HI-FI/DEMODULATOR SCHEMATIC DIAGRAM

W843
W844
C825
L802
47P SL
22uH 0305
C837
0.1 B
1.3 4.8 0 4.8 2.4 2.4 2.4
30 29 28 27 26 25 24 23
0
W837
TEST1 C835
4.8
VDDA2
0.1 B
W838
0
VSSA2
W839
0
ADDR2
2.3
IREF
C828
0 W840
TEST2
22P CH
3.0 C832
XTAL0
22P CH
X801
3.6
XTALI
100CT02401
R812 R816
4.7
VTUNE
10K 39K
0
ADDR1
4.8
PCLK R815
NC
4 5 6 7 8 9 10 11
0 0 4.8 0 4.8 0 4.8 4.8
NC
C816
C820
B 0.1 B
0.1 F
NOTE:
C
D E
(VCR PCB)
IIC_DATA
IIC_CLK
SIF_OUT
L702
100uH
HF1 0305
HF_COM
HF2
C702
R814 C705 R705
0.1 F
8.2K 0.01 B 470
C703
L701
6.3V 47 KA
100uH
L801 D801
HIFI_H.SW 0305
MA367
2.7uH
R702
HIFI_REC_MUTE
C833 10K
C701
TP701
0.033 B NC
0.1 F
C836
HIFI_ENV.DET
39K 0.33 B W846
IIC_DATA
W845
IIC_CLK
TUNER_AUDIO-R
TUNER_AUDIO-L
TU_A_OUT
THE DC VOLTAGE AT EACH PART WAS NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
DURING PLAYBACK
D E
2-25 2-26
F G
Note : The Parts Number , value and rated voltage etc.in
the Schematic Diagram are for references only.
When replacing the parts , refer to the Parts List.
R706 R711
33K 33K
3.8 3.9 3.9 0.8 3.9 3.8 0 0.8 3.9 3.9 3.9
33 32 31 30 29 28 27 26 25 24 23
C726
active s-by Vref Iref Supply
11.6
passive s-by
M 3.8
playback A 50V 1 KA
level C730
HID amplification
0.6 detector decoder
BPF
PLL select
HF
1.3MHz 4.6
limiter 1.3MHz TUL +1db 12V 50V 1
1.4MHz C727
HF AGC 1.4MHz
0.6 E1L
CCO
RM HF LPF
record current SAP
level
TUR 6.1
M + BPF detector 16V 10 KA C731
PLL
0.6 E1R M
1.7MHz
HF 1.7MHz
carrier ratio
1.8MHz SAP
record-mute limiter 1.8MHz
6.1
HF LPF CCO 16V 10 KA
HID park
DCL
0 L hold
R
0
noise 5th order rectifier park
C729
suppr. hold DCR
W+FM
0 audio LPF detector AUNT output
select
audio
24pin E2L
compressor 6.1
clipper CCA 16V 10
expandor 23pin L + + C728
4.9 R E2R
noise rectifier
5th order
suppr.
W+FM + 6.1
audio LPF detector Dub 16V 10 KA
N
line select
M
0.9 audio 32pin
compressor
clipper +
expandor CCA
33pin
0
RM
auto
env.select(pb)
1.2 HID A
mute
DCL + +
2 NC
I C Hifi detector
MUTE
DCR
vol. vol. 0
DOC +
AUTN right
L Dub left
1.3
NC
INPUT
SAP M
SELECT 3.9
REC
4.2
mute
TUL NC
TUR
E2L E2R
0
E1R
1 2 3 4 1 5 6 7 8 9 0 11
3.8 3.8 3.8 3.8 3.8 3.9 3.9 3.9 3.9 3.9 3.9
NC NC
NC
HI-FI/AUDIO/
CANAL SW IC
IC701
TDA9605H
F G
H
8
7
6
5
NORMAL_A_OUT
NORMAL_A_IN
KA
DEC_A-R
DEC_A-L
4
HIFI_A_OUT-R
KA
HIFI_A_OUT-L
3
2
PCB010
VMB252
1
H