Y/C/Audio/Head Amp Schematic Diagram - JVC HR-XV1EU-R Service Manual

A B
Y/C/AUDIO/HEAD AMP
8
SCHEMATIC DIAGRAM
FROM/TO VCR SYSCON
V.H_SW
(VCR PCB)
PICTURE_CTL
NA_REC-H
DUMMY_V.SYNC
SYNC
A_MUTE/TRICK-H
IIC_DATA
IIC_CLK
ENV.DET
7 CTL+
CTL-
MSECAM-M/AGC/S.DET
S.DET-H
FROM TUNER/JACK
SWD_VIDEO
FRONT_V_IN
6 TU_V_OUT
FROM/TO HI-FI/DEMODULATOR
NORMAL_A_IN
NORMAL_A_OUT
HF1
HF2
HF_COM
FROM REGULATOR
5
P.CON+5V
GND
FROM DISPLAY
FRONT_V_IN
TO SUB MICON/OSD/VPS
2FSC
EE/VV_V_OUT
FROM/TO CYL
CP101 TOC-C09X-A1
4
HF1
9 HF1 (R)
HF_COM
8 HF_COM
HF2
7 HF2 (L)
SP-R
6 SP-CH1 (R)
SP_COM
5 SP_COM
SP-L
4 SP-CH2 (L)
EP-R
3 EP/LP-CH1 (R)
EP_COM
2 EP/LP_COM
EP-L
1 EP/LP-CH2 (L)
3
FROM/TO HEAD AUDIO CONTROL
CP102
IMSA-9604S-06Z14
1 AE HEAD(-)
2 AE HEAD(+)
CTL-
3 CTL-
CTL+
4 CTL+
AUDIO REC
5
2
6 AUDIO PB
R101
2.2K
NORMAL AUDIO
TO
REC ST SW
FULL ERASE HEAD
Q102
KTC3203_Y
CP103
TMC-T02X-E1
1 FE HEAD(GND)
2 FE HEAD(HOT)
CAUTION: DIGITAL TRANSISTOR
1
A B
C D
W885
W886
V.ENV
TP102
NC
C119
0.001 B
H.SW
TP101 Y/C/AUDIO/CCD/HEAD AMP IC
NC IC101
HA118217F
V.H_SW
C125
5
0.033 B C130
50V
ENV.DET
C120 0.1 F
C123 0.01 F
SP-L
SP_COM
C132
0.01 F
C127
SP-R
L105
0.1 F
P.CON+5V
22uH 0305
EP-L
C121
EP_COM
0.01 F
C122
EP-R
C131 0.01 F
1 B
W860
MSECAM-M/AGC/S.DET
C107
A_MUTE/TRICK-H 1 B
L106
P.CON+5V
100uH 0305
C117
16V 10 KA
C116
6 1 6
4.6 4.9
220P B
PB SW
2 5
OSC
4.9 Q105
Q104 3 4
KRA103SRTK
KTC3203_Y
4.9 4.9
R106
COIL,BIAS OSC
4.6
L104 0.5
10K
1616003
0
C109
0.0047 B
0
CAUTION: DIGITAL TRANSISTOR
C D
Note :
E
3
C158
4
5P
CH
C159
0.022 B
NC
0 2.1 2.8 4.7 2.1 2.1 1.7 1.7 1.9 2.1 2.5 2.8 1.4 5.0 5.0 5.0 2.2 4.2 3.2
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62
2.6
C GND DO
KIL
X TAL VCO/OSD CR DET 2FSC SERIAL CONT
1.1
INTERFACE
LIMITTER HEAD SW1
2FSCVCO FH SYNC
HEAD SW2 TANC P
2.4
KILLER
SW26
DET OUT R
COLOR
0.9
3.3 KA ME SW25
KILLER
COMP PB/REC REC REC PB
SECAM DL
ENV DET ID DET
DISCRI AFC APC APC
HPF DET
DET
0
HA GND DET
2.2 1/2 DOWN 1/2 ACC APC DELAY
+ SP2 CONV. DET SW
2FL VCO
PHASE SW
SW32 SP2
C124 2.2
-
4PHASE GEN
SW33
0.01 F 2.2 SW30
SP1
SW29 SW28
- CH2
P SW20
SW34 SP 2M LPF CTL TRAP
C133 2.2 ACC
+ HPF
R FHTRAP
CH1
SW35 SP1 SEP
0.01 F 4.9 EP
HPF
HA VCC VCA
L SECAM COMP SW19
C134 0 SW27
EP2
MIX
+ SW31 C.K B.E
SW18
LEVEL P
SW36 EP2
CH2 L SECAM
0.01 F 0 LPF ADJ TRAP
-
REC
+ R
MUTE
SW37
C135 0 P SW7
EP1 CH1 SQPB
629 FM P S
-
FROM TRAP AGC EQ DL G
SW38 EP1
DO EDGE
0.01 F 0 MESECAM R EQ
+
SQPB DET DELAY
DET
DET
SW39
0.5 DLIM
1M HPF
NL NL
+
EMPH DE EMPH
DEMO
4.9 DET
SW4 SW5
7M HPF
AVCC
SW2
P FBC/ALC
SUB LPF
0
LAG LERD
PRE R
LPF SW10
AMP VCA
MAIN
4.9 MAIN
DE EMPH
P
FM MOD EMPH R
CARRIER
0.9
OFFSET Y LPF
MUTE FO/DEV
W.C/DC SW9
ADJ R P
2.5
SW6
REC EQ
BAND S-DET
SW11 CLAMP
GAP
3
A.GND 2 1 YVCC
1 2 3 4 5 1 6 7 8 9 0 11 12 13 14 15 16 17 18 19
2.5 2.5 0 2.5 0 2.8 2.5 2.6 2.5 2.4 2.4 4.9 1.2 1.2 3.0 0.6 0.6 2.2 3.1
NC NC
R114
8.2K
C137 R115
180
16V 10 KA
R117
10K
C144
470P CH
R109
DTC143EKA
5.6K R120
PB SW
0
Q106 2.2K C151
R110
0.7 KTC3198
0.018 B
4.7K
C145
0 0 0
7
PB SW 470P CH
Q107
0
4.9
R111 KTC3198
SQPB SW
0.7
4.7K
0 Q108
DTC143EKA
NOTE:THE DC VOLTAGE EACH PART WAS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
E
2-17 2-18
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.
F G
AMP
Q111
KTC3875S_Y_RTK
2.8
2.07
4.86
L124
R146
100uH 0305 2.2K
1 C204
0.1 B
C203
2
6.3V 47 KA
0
3
C110
47P CH
C190
180P CH
4
4.8
3.0 5.0 2.1 0.1 3.3 2.8 2.1 2.0 2.8 2.7 0
R145
61 60 59 58 57 56 55 54 53 52 51
10 1/4W
CVCC 0.3
NTSC/PAL
VCA
N-P CONT
6dB AMP 6dB AMP
OUT 0
LEVEL DET1
CCD
- LPF C SQUELCH SYNC.SEP.
0
LEVEL DET2
0
R +
PULSE
GEN CLEAR SYNC 1.9
C.K
LMIT
CLPH
0
CLPH WHAITH
CCD
SW24 SQUELCH
N P
P GND
R C183
MAIN 2.6
CONV2
FEED BACK
MAIN
+ B.D
CLAMP 0.01 F
CONV1 4.9
SW22
P VIDEO ALC
SW23 R
R
P
2.0
P SW21
R BPF
4.9
CLOCK
DEIVER
4.9
3.0
C Y
CCD CCD
4.9
SW17
P
Y APA
0.1
MODE
SW16 R
CONT
R CCD
D.E. 4.9
REC
N.C. VCC=5V
AGC DEL
P 3.0
PB ALC
VIDEO AGC SW115 0
SW14
YNR CH3 CH1
REC
DO 0
DO
CH2
P R
ATT ATT ATT
0
SW12
SW15 (-10dB) (-10dB) (-10dB)
CLAMP
2.8
LPF
P R
YGND AGC
20 21 22 23 24 25 26 27 28 29 30
2.7 2.4 2.0 3.1 2.1 1.5 2.1 0 2.8 1.9 2.8
C181
C191
1 B
50V 1 KA
SQPB SW
Q110
0 0
4.9
0 0
4.9
SQPB SW
Q113
DTC143EKA
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F G
H
8
7
2 2
2 1
5
4.8
SYNC
6
5
L116
P.CON+5V
100uH 0305
SWD_VIDEO
4
FRONT_V_IN
TU_V_OUT
3
2
PCB010
VMB252
1
H