Main(Fma/Demod) Schematic Diagram - JVC HR-S2901U Service Manual

4.7 MAIN (FMA/DEMOD) SCHEMATIC DIAGRAM
0 3
5
TO SW.REG
SW5V
GND
SW12V
TO TUNER
COMP
SIF
4
TO
VIDEO/N.AUDIO
Fsc
LINE_OUT[R]
LINE_OUT[L]
RF_AUDIO
NA_REC
NA_PB
GND
F.AUDIO[R]
F.AUDIO[L]
A.IN1[R]
3
A.IN1[L]
2
1
A
MAIN(FMA/DEMOD)
C2222
0.01
Q2202
DTC144WUA
Q2201
PDTC144WU
DTA144WUA
UN521E
PDTA144WU
RN1309
UN511E
RN2309
R2220
1k
C6506 1 /50
#
C6602
1 /50
# C6508
0.022
#
C6509
L6501
0.1
SHORT
# C6512
0.022
D2201
OPEN
# C6604
R2209 C6510 C6511
R2211
100 OPEN OPEN 0.01
3.3k
C2214
Q2203
R2210
4.7k # C6513
2.2 /50
2SC4081/QRS/
2SD1819A/QRS/
2PC4081/R/
R2213
4.7k
Q2204
C2215
R2212
R2214
3.3k
100
R2215
220
# C2218
# R2216
1k
#
C2219
C2216 C2217 R2217
47 /16 OPEN 4.7k
C2220
R2218 3.9k C2221
#
C6605
1 /50
R2219
1k # C6514
#
C6515
: Used
# DIFFERENCE TABLE
: Not used
SYMBOL SYMBOL SYMBOL SYMBOL
R2203 R2216 Q2251-Q2254
R2204 RF R2217 R2254,R2256 VR2251
R2258,TP2254
REAR R2207 OUTPUT C2218 S-VHS
INPUT R2208
YES YES
YES
NO NO SHORT
DOM
NO
OTHERS
SYMBOL
C2261
FLY
ERASE C2262
YES
NO
B C
#
REC_FM_ADJ
# C6504 0.1
# C6517
# R6502
0.22 3.3k
Pilot_DET
SAP_Noise_DET
Vcc(MTS)
SAP_DET
10 /25
LINE_OUT(R)
L+R_REF
GND2
LED
10 /25
LINE_OUT(L)
Vcc2(12V)
10 /25
RFC_OUT
22 /16
RFC_AGC_DET
10 /25
NORMAL_OUT
0.022
NORMAL_IN
Spectral_DET1
0.022
Spectral
timing
# IC2201
R2201 47k
#
R2203 47k
R2205 47k
# R2207 47k
R6502 B6601
C6502-C6504 C6601
IC2201 C6508,C6509 C6515 C6516 C6602
C6512-C6514 C6604
C6517 C6605
AN3672NFBP 1/50 10/25
AN3663FBP 3.3/50 4.7/25
D E
4-15 4-16
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.
# Q2252
# #
R2256 R2254
DTC144WUA
2.2k 10k
PDTC144WU
UN521E
RN1309 # Q2251
DTC144WUA
VR2251 PDTC144WU
UN521E
10k # Q2254 # Q2253 RN1309
DTC114EUA DTC144WUA
PDTC114EU PDTC144WU
UN5211 UN521E
RN1302 RN1309
TP2253
A.PB_FM
R2253
100
CCA_OUT(R)
C2208 0.015
R2257 680k
NOISE_DET
C2259 0.33 /50
PB_FM_IN
R2252 R2251
3.3k 4.7k
PRE_OUT
D2251
1SS133
ENV
C2257 0.01 1SS270A
AFF
L2251
REC(-)DCF
C2256 0.01 10µ
C2255 C2254
0.01 47 /6.3
Vcc(P/R)
K2251
OPEN
CH2
C2253 0.01
# C2261
100p
GND(P/R)
# C2262
100p
K2252
OPEN
CH1
C2252 0.01
K2253
OPEN
COM
REC(+)DCF
C2251 0.01
CCA_OUT(L)
C2207 0.015
# TP2254
A.REC_FM
NR_REF(L)
C2206 10 /25
NR_DET(L)
C2205 10 /25
F
TO SYSCON
S.CASS[H]
ET_REC[H]
JUST_CLK
AFC/JUST_CLK
I2C_DATA
I2C_CLK
A.MUTE[H]
H.REC_ST[H]
CTL5
LED
CTL8
A.ENV/ND[L]
CTL9
A.FF
CTL4
TO
VIDEO/N.AUDIO
FMA_CH2
FMA_CH1
FMA_COM
# R2258
0Ω
p20244001a_rev1
G H