Hi-Fi/Demodulator Schematic Diagram - JVC HR-XVC25US Service Manual

A B
8
7
6
L702_1 22uH 0305
P.CON+5V
C752
HIFI_A_OUT_R
16V 22
ST_SELECT
5
C758
HIFI_A_OUT_L
16V 22
MH7
P.CON+12V
100uH 0305
AUDIO_OUT
W803
TO_NORMAL_A
FROM_NORMAL_A
4
A.VCC
3
2
1
A B
C

Hi-Fi/DEMODULATOR SCHEMATIC DIAGRAM

C744
0.1 F
C743
R716
3.3K
50V 0.22 MH7
HI-FI/AUDIO/HEAD AMP/DEM IC
R717 IC701
2.2
AN3663FBP
2.2M 48
C746
3.4
DEM_BLK
0.1 F
C747
C751
2.7
50V 10 YK 0.1 F
4.9
C748 C749
2.5 MAIN
DEEN
0.1 F 0.1 F
4.2
MH7 C750 R720
2.3 LOG
AMP
3.3K
50V 2.2 MH7
0
USA
AN3663FBP
1.2
4.3
L703
11.0
C757
4.3
1 F
C754
C759
1.0
SW22 L
16V 47 KA
35V 22 KA
C756
2.4
16V 10 MH7
R718 C760
2.3
1K 1 F
R719
2.2
330
0.6
C755
1
0.022 B
2.3 0
NOTE:THE DC VOLTAGE EACH PART WAS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C
D E
(VCR PCB)
4.7 NC 0
0 3.5 2.1 2.3 4.7 0 4.9 0 1.6 2.4 0.7 2.4
0
47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
2.4 C730
ZZ-PROM
LOGIC
4.5M CUE AM 95HMz MUTE VCO-F0 2.1
TRAP BPF DEMOD BPF CTL ADJ
50V
LOGIC
1.8
SUB SUB 3.5M S/N
COMP
BPF DET VCO
SW12
PNR RCH
SW NOISE PB REC
FM LOGIC 1.8
SW21
DEMOD
RCH
SW9 1.8
SUB DEEN
MATRIX VCO
AUDIO
MUTE FROM 1PIN LIMIT
OUTPUT SW REC LPF
2.5
R SW18
AMP R L BS
PC PB LPF HPF
AMP
C722
SW19 HIFI
0
L
R NOISE
MIX
DET
RCH BPF 0.1 B
MUTE 4.9
SW16 FM UM
LINER
L
SW10
SW
MIX LCH BPF
C723
0.6
SW17 HIFI
AMP HOLD
L
R BS
TIMING 0.01 F
PC PB LPF
FROM 3PIN 0
RFC
CURR
AUDIO
C724
AMP
LIMIT 0.7
-
DET
SW14
0.01 F
SW4
-
0
SW2
SW NOISE +
PNR LCH
MIX C725
0
S/N
MIX DET
R SW15
C726
H 2.4
L REC LPF
AGC
INPUT_SW(L)
LCH VCO SW11
L
R 2.4 C727
INPUT_SW(R)
C728
0.7
VREF1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
2.3 0 2.2 2.4 2.1 0.5 0 0 0 2.0 2.2 0 0 2.4
NC NC
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
2-11 2-12
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.
F G
FROM/TO TUNER/JACK
FRONT_A_IN_R
FRONT_A_IN_L
SIF_OUT
DVD_A_OUT_L
DVD_A_OUT_R
AUDIO_OUT
HIFI_A_OUT_R
0.015 B HIFI_A_OUT_L
C731
HIFI ENV.
0.22 KA
TP701
NC
D701
V.REC_ST-H
1SS133
HIFI_ENV.DET
C732 0.01 F
28
HIFI_H.SW
C729 0.01 B
L704
P.CON+5V FROM/TO Y/C/AUDIO/CCD/H.AMP
C761
10uH
6.3V 47 KA
HF2
HF1
HF_COM
0.1 B FSC
FROM_NORMAL_A
0.015 B
TO_NORMAL_A
A.VCC
16V 10 MH7
50V 10 KA
FROM/TO POWER
P.CON+5V
P.CON+12V
GND
FROM/TO SYSCON
V.REC_ST-H
HIFI_ENV.DET
HIFI_H.SW
AUDIO_MUTE-H
SCL
SDA
ST_SELECT
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
F G
H
8
7
6
5
4
3
2
1
PCB010
VMC300
H