Y/C/Audio/Ccd/Head Amp Block Diagram - JVC HR-XVC25US Service Manual

CP101
EP/LP-CH2 (L)
1
2 EP/LP_COM
EP/LP-CH1 (R)
3
4 SP-CH2 (L)
SP_COM
CYL 5
6 SP-CH1 (R)
HF2 (L)
7
8
HF_COM
HF1 (R)
9
HF1
HI-FI/DEMODU
HF_COM
LATOR
HF2
CP103
1 FE HEAD (HOT)
FE HEAD
2
FE HEAD (GND)
CP102
6 AUDIO PB
5 AUDIO REC
HEAD
CTL+
4
AUDIO
CONTROL
3 CTL-
2 AE HEAD(-)
1 AE HEAD(+)

Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM

X101
3.578545M Hz
Q109
BUFFER
Y/C/AUDIO/CCD/HEAD AMP IC
IC101
LA71206M
41
50 49
VX01 PULL
DRIVER
TIMMING
L
67
H.SW
REC
FM-EQ
H
66
KIL
AGC
AMP
C-LPF
H
P
R
65
H.AMP
SW
GCA
72
L
R
P
ACC
FM
AMP
AGC
73
DELAY
H
PB
H.SW
FM-EQ
74
L
PB
DOUBLE
PHASE-EQ
LIM
9
REC AMP
7
8
AUTO BIAS
EQ
AMP
6
PB.EE
11 5 4 3 2
COIL, BIAS OSC
L101
Q105
BIAS CTL
5 2
6 3
Q104
BIAS OSC
1
4
Q103
Q101, Q102
SW
AUDIO PB SW
2-35
Q107
BUFFER
39
37
OUT
CLAMP
CCD
NL DETAL
WC
FM
EMPHA ENH
DC
MOD
V/I
CONV
P P
Y-LPF
R R
B-UP Main 3.58M YNR/
AMP CONV BPF2 COMB
P
N.L.
3.58M DEEM
BPF1
R
NC1
KIL PB
B.D. AMP
Y/C MIX
1/2
P
FM SUB
FBC
DEM LPF
LINE
R
AMP
V-AGC
LPF
Chara
R
P
INS.
P
R
ALC
ALC
DET
MUTE
SYNC
6dB
SEP
10 30 28
80 78 76 32
2-36
AUDIO SIGNAL(REC)
AUDIO SIGNAL (PB)
PLAYBACK COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD COLOR SIGNAL
RECORD LUMINANCE SIGNAL
TUNER VIDEO SIGNAL
55
SERIAL
54
DECODER
53
CLAMP
22
21
VCA 36
CLAMP 34
H.AMP SW/
AUDIO
58
MUTE
C ROT
57
RF SW IN
ENV DET 59
CONP 60
OUT
24
25
26
Q106
BUFFER
Y/C_CS
Y/C_DATA SYSCON
Y/C_CLK
H. AMP_SW
C. ROTARY
H. SW
AUDIO_MUTE-H
SYSCON
ENV. DET
COMP
DUMMY_V. SYNC
C.SYNC
Y/C_VIDEO_OUT
TUNER/JACK
FRONT_V_IN
TUNER_V
TO_NORMAL_A
HI-FI/DEMODU
FROM_NORMAL_A
LATOR
FSC
DVD
DVD V OUT
POWER
P. CON + 5V
V.REC_ST-H
SYSCON
CTL+
CTL-