Main (Video/Audio) Schematic Diagram - JVC SR-VS30U Service Manual

4.3

MAIN (VIDEO/AUDIO) SCHEMATIC DIAGRAM

0 3
MAIN
(VIDEO/AUDIO)
TO AUDIO I/O
5
FMA_OUT[L]
FMA_OUT[R]
DEC_OUT[L]
DEC_OUT[R]
GND
A_IN1[L]
A_IN1[R]
AMP_DEMOD[L]
AMP_DEMOD[R]
A.SEL_IN[L]
A.SEL_IN[R]
DV_A.PB[L]
DV_A.PB[R]
TO TUNER
TU_AUDIO
TU_VIDEO
TO SYSCON
A.FF
A.ENV/ND[L]
A.MUTE[H]
H.REC_ST[H]
EDS_CS/PAL_PB[H]
4
TO DRUM
# CN1
FLY.E
FMA_CH2
FMA_CH1
SP_CH2
SP_CH1
LP/EP_CH2
LP/EP_CH1
R21
OPEN
TO CONNECTION
GND
C69
SW5V SHORT
SW12V
D2
OPEN
3 CN2001 TO SHEELD
K2003 SHORT
P/R K2004 SHORT
A.E
CTL
TO SYSCON
CTL[+]
CTL[-]
GND
CN2002
FE
TO SYSCON
FULL_E.ON[L]
N.REC[L]
N.REC_ST[H]
SEP_PB[H]
2
TO SECAM
SECAM_DET
PB_FM
B25 OPEN
SECAM_REC_COLOR
GND
C.SYNC
SW5V
V_TO_OSD
SECAM_PB_COLOR
EE[L]
SECAM[H]
NC Fsc
B66 OPEN
1
A
D1
DA204
B42
TO SHEELD
OPEN
Q405
2SA1576A/QR/
R401 R402 C405
220 680 OPEN
C402 Q2251
R406 L402 DTA144WUA
0.022
R404 39k SHORT
47k
R408
C406
R403 R405 47k
560 0.001 68k
R407
C401 4.7k
0.01 Q401 L2252
2SA1576A/QR/ C409 OPEN
OPEN
Q402
2SA1576A/QR/
L401 C2255
15µ Q403 OPEN
C404 C407
Q2252
C403 47p 15p OPEN
130p
C2003 C2004 C2251 C2252
47 /6.3 OPEN 47 /6.3 0.01
L2251 10µ
L2001 SHORT
R22 L1
OPEN 10µ
C1
1
SP_SHORT[H]
Q2
Q1 OPEN
OPEN
C2
1
C3
Q4 1
OPEN
LP_SHORT[H] C5
Q3
47
OPEN /6.3
C4
1
TP111 R77
C70 D.FF 22k
SHORT
C7 C8 C44
0.001 0.1 OPEN
R2020
OPEN
R2012
OPEN
R2057 47k
R2051
OPEN Q2052 R2058
18k
Q2051 2SA1576A/QR/
2SC4081/QRS/ Q2053
DTC144WUA Q2005
R2053 OPEN
C2053 0.0033 R2059
C2051 3.3k
330p 47k
MY
R2056 R2060
C2052
R2054 15k 100 18k
0.033
R2011 10k
R2052 T2051 Q2054
OPEN
PELN0860 2SA1576A/QR/
C2055 C2054 R2055 Q2003
10 /25 0.01 3.3 DTA144WUA
R2064
Q2061 47K
2SC4081/QRS/
R2065
Q2001
C2062 0.0033 18k R2022
1k 2SC4081/QRS/
MY
C2061
0.033
D2001
R2063 Q2062
R2061 27k 150 R2018
2SA1576A/QR/ 4.7k
Q2006
T2052
PELN0861 C2064 DTC144WUA
C2063 R2062 R2019
10 /16
0.01 3.3 4.7k
Q2002
2SC4081/QRS/
L15 10µ
R25 R27
10k 1k
Q8
R29
2.2k
R67 Q7 R23
OPEN C60 C59 TP106 1.8k
47 0.01
/6.3
PB FM
R32
C72 L18 470 R113
C71
47p SHORT 0Ω
R65 0.01 L19
10µ
Q14 R24 C73
OPEN OPEN OPEN 12p
C78
OPEN Q5
C103
R68 L17
OPEN
OPEN OPEN Q9
R26 R28
6.8k 1k
C93
OPEN
C77
OPEN Q6
R31
OPEN C74
1.2k
12p
B C
R2003 100
R2206 100
R2208 OPEN
R2209 OPEN
R2005 OPEN
R2006 39k
C2214 C2213
R2007 OPEN OPEN OPEN
R2213 39k
R2217 OPEN
R2218 39k
R2211
R2219 OPEN OPEN
R2220 39k
R2226
OPEN
C2229
OPEN
C2210
0.1
1k
R2251
4 3 2 1 4 3 2 1
(L2) (L1) (FR) (TU) (L2) (L1) (FR) (TU)
INPUT_SEL [R] INPUT_SEL [L]
TP2253 NR[R] NR[L]
EVR
EVR
A.MUTE
A.FF ENV DET
+
C2227 0.1 NOR DET
OUTPUT SEL
PRE/REC GND REC/PB MON
C2253 0.01 K2251 SHORT
CH2
K2252 SHORT
COMMON
NA INPUT SEL
C2254 0.01 K2253 SHORT HIFI FM
CH1
PRE/REC VCC
A.Vcc
HIFI HIFI
BDL GND INPUT_SEL
COMP
PRE/REC GND
SP2
P
SP DL R
COMMON CCD LPF
PRE/REC
C6
0.1 AMP
C-LPF C-LPF
SP1 SECAM D1*D18 R REC LEV.
CTL
LPF TRAP MAIN
VCA MUTE SECAM P MAIN
D1*D18 CONV.1 CONV.2
PRE/REC VCC SP
SECAM SECAM
2M LPF
SP P R R P
LP/EP2 P C.K.
ACC CTL.P.TRAP
Fh TRAP
LP/EP R
COMMON PRE/REC
COMP
HPF LEVEL DET1 LEVEL DET2
AMP
LP/EP1 SEP PILOT
P BPF BURST
EMPH./DE EMPH.
R ADD
R2021 OPEN
ENV OUT
629TRAP
D.FF
P FM AGC
C2005 4.7 /50
DET R P EQ
DET C.KILLER
R2014 SQPB DL
LPF ID DET
220k
A.GND DO DET SQPB SQPB
R2013 MOD
R2015 APC SW
6.8k SUB LPF DE MOD D.LIM. SB GAIN G EQ
NT on PAL DISCRI
180 C2006 K2002 C2013 CARR./DEV.ADJ CNV.
R D.E.
C2007 0.012 OPEN S-DET
C2009 22 /16 P.C. PULSE
P N.C. C.K.
0.0012 4.7
C2008 /50
C2016 SQPB SQPB
R2016 47k K2001 EQ WHITE
OPEN ET LIM. 4PHASE GEN.
FBC N.L. P CLEAR
C2010 ALC SQPB
ET ET SYNC
R2017 15k 0.0015 LPF R
ALC
REC
C2011 FBC
4.7 /50 Y
P R AGC
BDL YNR Y-LPF AGC DET
TANK CARREA R P PB ALC SQUELCH D4
OFFSET
MAIN
EMPHA. CLAMP
INT D4
C65 W.C./D.C
OPEN P R CH4 CH1
D17
EXT CTL DO DO
DC PB R P &REC CH3 CH2
-10dB -10dB
K2001.K2002 MAIN LPF CLAMP CLAMP SYNC SEP
SHORT SHORT DE EMPH. -10dB -10dB
Y GND Y VCC
IC1
JCP8050-MSA
JCP8050-NSA
C2012 4.7 /50
C15
C61 0.01 0.01
C23
0.1
R33 R1
6.8k
8.2k ±0.5%
L20
SHORT
C10
150p C12
±2%
10p
R35
OPEN
Q16
OPEN
SP[H]
C11
0.1
Q17
VHS[H] C139 C84
27p OPEN R2
1.5k
±0.5%
R70 C17 C9 C19 C20 C21
0Ω 3.3 2.2 2.2 1 0.1
/50 /50 /50 /50
C22
47 /6.3
R104
6.8k R54
OPEN
R92 Q38
0Ω
B8
R93 C110
1k B55
330p
R62 OPEN
OPEN Q18
OPEN
C109 L24 D8
OPEN
OPEN OPEN
C82
OPEN
C106 L28
SHORT
15µ
R90
470
Q28
OPEN R91
OPEN
D E
4-7 4-8
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.
C2208 C2001
4.7 /50 4.7 /50
R2201
150
R2210 R2207 R2004
3.3k 3.3k
OPEN
D2202
MTZJ8.2C
C2209
0.1
C2231 C2207
OPEN 47 /16
DATA
CLK
9V
C2205
DET
1 /50
C2204
fsc IN
0.001
C2203
CR DET
10 /25
NA PB
C2201
R2228 R2229 0.1
NA REC
SHORT OPEN C40 D6 MTZJ5.1C
10 /25
BAND_GAP
C2014
OPEN
C143
C2202 0.033
OPEN
BDL VCC
L5
10µ
BDL DET
VCA C
C38 C39 C45
BDL R9 0Ω I2C_DATA 47 0.1 OPEN
DATA
/6.3
IIC LOGIC R8 0Ω I2C_CLK
CLK
C37 1 /50
2FscVCO LPF
R36 1.8K
D5 D5
C GND
Fh LOCK CTL
C36
MESECAM 2Fsc OUT X2 C51
DET CR DET 4.7
/50 QAX0575 OPEN
C35 QAX0577 R43
0.1 QAX0682 0Ω
QAX0690
X'tal
VCO/XO
R37
1/2 OPEN C46 L30
PHASE SW. X1 0.01 SHORT
OPEN R38
DOWN CONV. OPEN
C34 0.1
ACC DET
R7 1k C33 2.2 /50
REC AFC
C32 C140
PB APC 0.1 OPEN C31 47 /6.3
C VCC
GEN.
R R6 10k C30 0.47
REC APC
P
1/2 L11 12µ C29 0.0047
2FL VCO
C28 3.3 /50
C27 0.022
KILLER R117
DET OUT OPEN
C-SQUELCH C47 OPEN
L12
OPEN Q25
OPEN
R46
270
R48 R39 R88
1k R42 2.7k
OPEN
680
R41
C56 3.9k
OPEN
L13 L27
33µ Q21
OPEN
Q11
Q10 OPEN
C112 C108
OPEN OPEN C114 Q40
OPEN Q26 B52
OPEN
OPEN OPEN
Q41
OPEN R40
2.2k
R111 C64 Q39
OPEN 22p OPEN
B65
B12
OPEN
C24
0.1
B13
L3
10µ
2SC4081/QRS/ or 2SD1819A/QRS/ or 2PC4081/R/.
2SA1576A/QR/ or 2SB1218A/QR/ or 2PA1576/R/.
DTC144WUA or UN521E or PDTC144WU or RN1309.
DTA144WUA or UN511E or PDTA144WU or RN2309.
#;OPTION
F
L4 10µ
TO SYSCON
R51
1.2k
SECAM_DET
LP_SHORT[H]
SP_SHORT[H]
Q24 D.FF
VIDEO_ENV
HEAD_SEL
FLY_ON[H]
FLY_REC[L]
I2C_DATA_A/V
I2C_CLK_A/V
TRICK[H]/M_TRICK[L]
3.58NTSC[H]/P.ON_P
MESECAM[H]
V.PULSE
NORM/MESEC/S
C.SYNC/V.REF
SB_GAIN
ET_PB[H]
VHS[H]
SP[H]
EE[L]
JUST/EDS[H]/SECAM
SLOW_PULSE
V.P.CTL
TO_DIGITAL
CN501
FSC
GND
C_TO_DIGI
SE5V[2]
Y/V_TO_DIGI
EE[L]
L31 C142
Y_FROM_DIGI
OPEN OPEN
GND
C_FROM_DIGI
KILLER_DET
I2C_CLK_A/V
I2C_DATA_A/V
V.P.CTL
V.REF
D.FF
TRICK[H]
SLOW_PULSE
p10419001a_rev0
G H