Main(Video/N.audio) Schematic Diagram - JVC HR-J691U Service Manual

4.2 MAIN (VIDEO/N.AUDIO) SCHEMATIC DIAGRAM
0 3 MAIN(VIDEO/N.AUDIO)
5
TO FMA/DEMOD
Fsc
NA_PB
NA_REC
RF_AUDIO
F.AUDIO[R]
F.AUDIO[L]
LINE_OUT[R]
LINE_OUT[L]
GND
TO TERMINAL
LINE_OUT[L]
LINE_OUT[R]
F.AUDIO[L]
F.AUDIO[R]
GND
FRONT_V_IN
GND D1
D2
OPEN
TO TUNER
RF_AUDIO
GND
TU_VIDEO
4
TO OSD
V_TO_OSD
GND
TO SW.REG
SW5V
SW12V
GND
TO FMA/DEMOD
R78
FMA_CH1 1K
FMA_COM
FMA_CH2
C1 0.1µ
TO DRUM
CN1
C2 0.1µ
FMA_CH2
C6
0.01
L1 10µ
FMA_CH1
3
C3 0.1µ
SP_CH2
SP_CH1
C4 0.1µ
LP/EP_CH2
LP/EP_CH1
C5
47
/16
TO SYSCON
CTL[+]
CTL[-]
TO A/C HEAD
CN2001
REC
PLAY
ERASE
T2051
GND(AUDIO)
PELN0832
PELN0954
CTL[-]
QQR0002-001
CTL[+]
C2051 R2053
330p 4.7K
MY
C2052
CN2002
0.082
2
FE
1
A
C2003
L2001 47
SHORT
R77 10k
C2005 4.7 /50
TP111
D.FF
C2007
R2015
22 /16
220
C2009
0.001
R2016
R2057 47k
47k
R2017
15k
Q2053
R2058
DTC144WUA
18k
PDTC144WU
UN521E
Q2052
RN1309
2SB1218/QR/
2SA1576A/QR/
2PA1576/R/
Q2003
R2059
DTA144WUA
47k
PDTA144WU
UN511E
Q2051 RN2309
R2060
2SC4081/QRS/
18k
2SD1819A/QRS/
2PC4081/R/
Q2055
Q2054 DTC144WUA
C2053 0.0047 2SA1576A/QR/ PDTC144WU
2SB1218A/QR/ UN521E
2PA1576/R/ RN1309
R2056
82
Q2001
R2018
R2054 12k
4.7k 2SC4081/QRS/
2SD1819A/QRS/
2PC4081/R/
R2019
4.7k Q2002
C2055 C2054 R2055
10 /25 0.022 3.3 2SC4081/QRS/
2SD1819A/QRS/
2PC4081/R/
C51 1 /50
B C
R2007 12k
R2010
12k
C2004 C2002
/6.3 OPEN 1 /50
INPUT_SEL
BDL GND
COMP
PRE/REC GND
SP2
SP
COMMON
PRE/REC
AMP
SP1 SECAM REC LEV.
D1*D18 R
TRAP CTL
LPF
VCA MUTE P
SECAM D1*D18
PRE/REC VCC
SP SECAM SECAM
2M LPF
SP C.K.
LP/EP2 P
ACC CTL.P.TRAP
Fh TRAP
LP/EP R
COMMON
PRE/REC
COMP
HPF
AMP
LP/EP1 SEP
P
BPF
R
ENV OUT
629TRAP
D.FF
FM AGC
P
R
DET
R2014 DET
LPF
220k
A.GND
DO DET
MOD
R2013 DE MOD D.LIM.
SUB LPF
CARR./DEV.ADJ
C2006 6.8k
S-DET R D.E.
0.012
P N.C.
C2008
4.7 /50
SQPB SQPB
EQ
C2010 ET
FBC N.L.
0.0015 ALC SQPB
ET ET
C2011 LPF
REC
4.7 /50
Y
P
R
BDL YNR Y-LPF
TANK CARREA R
OFFSET P
MAIN
EMPHA.
INT
W.C./D.C
P R CH4
D17
IC1 DO DO
EXT CTL &REC
DC PB R P
JCP8041-NVA
-10dB
MAIN LPF CLAMP CLAMP
DE EMPH. -10dB
Y GND
TP106
PB FM
C136 C62
OPEN 0.1
2SC4081/QRS/-X
R104
Q38 2PC4081/R/-X
6.8K C10 C11 C12 C14 C16 C17
150p 0.1 33p 0.1 0.1 3.3
/50
R93 C15
1K 1
B3
OPEN
R2
R3
1.5k
6.8k
R90
470
D E
4-5 4-6
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.
R2003
100
C2001
4.7 /50
C40 10 /16
C2014
OPEN
C39 0.01
C38 47
HIFI HIFI
L5 10µ
BDL VCC
C144 0.001
C37
R118 2.2K 47
BDL DET
P
C
VCA
DL R
BDL R9 1K
CCD LPF
DATA
C-LPF IIC LOGIC
C-LPF R8 1K
CLK
MAIN
MAIN
CONV.2
CONV.1
2FscVCO LPF
D5 D5
P R R P
C GND
Fh LOCK CTL
X2
MESECAM 2Fsc OUT
LEVEL DET1 LEVEL DET2 DET CR DET C36 C35 QAX0575-001
4.7 /25 0.033 QAX0682-001
PILOT BURST QAX0690-001
EMPH./DE EMPH. QAX0575-001
ADD
X'tal
VCO/XO
1/2
PHASE SW.
DOWN CONV.
C120 1µ /50
P EQ
C.KILLER
SQPB DL ID DET
0.1
C34
SQPB SQPB
ACC DET
APC SW
SB GAIN G EQ R7
DISCRI REC AFC
NT on PAL
CNV. C32
PB APC 0.01 C31
P.C. PULSE C VCC
C.K.
GEN.
R
R6
REC APC
WHITE P
LIM. L11 12µ
P 4PHASE GEN. 1/2
CLEAR 2FL VCO
SYNC
R
ALC
FBC
AGC
AGC DET KILLER C25
D4 DET OUT C26
PB ALC SQUELCH 5p
0.01
C-SQUELCH
CLAMP
D4
CH1
CH3 CH2
-10dB
SYNC SEP
-10dB
Y VCC
B2
OPEN
C23
0.01
L4
10µ
R66
OPEN
L3 10µ
Q22
2SC4081/QRS
2PC4081/R/
C9 C19 C20 C21 C22 C24
0.01 2.2 1 0.1 47 0.1
/50 /50 /6.3
Q32
OPEN
R49
560
F
/6.3
/6.3
820 C33 2.2 /50
47 /6.3
27k C30 0.47
/50
C29 4700p
C28 3.3 /50
C27 0.022
TO SYSCON
B1
SHORT
D.FF
VIDEO_ENV
N.REC_ST[H]
N.REC[H]
I2C_DATA_A/V
I2C_CLK_A/V
A.MUTE[H]
V.PULSE
SB_GAIN
AGC_CTL
p10380001a_rev1
G H