JVC AV-48WP30 Service Manual page 93

RECEIVER PWB CIRCUIT DIAGRAM [1/2]
CEGA008-001
SPLITTER
! TU101 QAU0206-001
U/V TUNER
UD101
QAU0219
-001
R101
10k
L101 0
QRN143J-0R0X
R102
10k
R105 0
R106 0
C103 C104
C102
10/50 10/50
470/16
Q101
*1
AGC_MUTING
9V
STB9V
GND C107
X
INPUTA/B
C108
CN101
X
X
D531
UDZS10B-X
C531
R531 R532
.47/50
220 220
R533
IC531
82k
R535
X
GND1 220
R534
C532
220
.47/50
J531
CEMN036-004
GND1
VARI/FIX_OUT
D532
R536
UDZS10B-X
82k
Q532 MUTING
DTC323TK-X
R538
22k
R537
22k
R539
Q531
22k
J531 DTC323TK-X
CEMN036-004
MUTING
DIGITAL_IN_AUDIO C551
MUTING Q533 Q534
R551
1/50
DTC323TK-X DTC323TK-X
220k
D551
C552
UDZS9.1B-X
1/50
R552 D552
220k UDZS9.1B-X
R701 D701
1k UDZS8.2B-X
J701
R805
QNS0001-001 R802
X R806
COMPULINK X
C802
R801 R803
Q802
X
X X
X
Q803
AMP
C801
AMP
X
D801
R804 R807
X
X X R808
Q801 X
BUFFER
R817
R814 R818
X
C804 X X
X
R815
R813
X Q805
X
J801 X
AMP
X
R819
C803
X
X
R812
X
R816
Q806
X
X
Q804 X
AMP
BUFFER
D802
X
RECEIVER PWB
NOTE
:
*1 2SC2412K/QR/-X
:
*2 2SA1037AK/QR/-X
: MA111-X
*3
X : NON MOUNT
R107
D534
0
AFT2
*3
R108 C105
47k X
D535
X
R113
R112
0
R109 0
R651 X
100
TV_V2
C106
TV_V2GND
X
LC101
X
R110
0
TU_9V/SW
BT30V
L102 0 TU_5V/SW
QRN143J-0R0X SDA0
SCL0
AMP_MU
BBE_SW
SDA0
SCL0
R121
X
IC121
X
CN0AT
R_FIX
9V_REGULATOR
X
L_FIX
Y531
0
L_VARI
C121
C122
X
X
D671
SW
C671
X
R672
R_VARI
Y532 0
R541
X
R542
X
D533 D805
Q535 *3 X
X
R543
VARI_FIX
R540 MUTING 15k
22k
Q536
X
MUTING
MUTING
R809
X X
R811
X
X
R810
X
X
R821
X
R823
X
R822
X
R820
X
(1/2)
(TUNER/MTS/BBE)
CN005
QGB1505K1-40
SSB0R251A-M2
No.51914
AV-48WP30
AV-48WP30
R658 C206
R654 10k X
Q652
10k BP
*2
C205
R659 SW N N
X
Q651 100k
BP
*1
MUTING R660
R126
10k
0
R125 0
C601 C602
N N
1/50 1/50
C651 C652
BP BP
0.1 47/25
PS
IC651
C201
M62320FP-X
1/50
MICOM LATCH NC NC
4.4 4.4 4.4 4.5 4.5 4.4 4.4 4.5 4.5 4.5
V V V V V V V V V V
NC
MOA FOL FOR EL1 ER1 EL2 ER2 TVL TVR LBC LTC TLO RBC RTC TRO SUR LOT ROT D-GND
FIXED EXT1 IN EXT2 IN TV OUT
IC122
LINE OUT
X
5V_REGULATOR
R127 X
R128 X
PHASE DET
VRE SAP DEMODULATION
PIROT DET
Vcc 1/2
COM SDT NDT SOT SI1 SOA STI SRBITI WTI WRB
PD1 PD2
9V Vcc
C123 9V 4.5 4.5 4.5 4.5 4.5 4.4 4.7 0.2 3.2
X V V V V V V V V V
N
C208
R122 C213
C207
0.1
X 0.1
1/50
B2
N B2
BP
C209
4.7/50 BP
C203 C202
R123
100/16 0.1
X
PS C210
C212
0.047
2.2/50
B2
R124
X C204 R207
47/25 68k
R203 R202
15k 6.8k
R671
X X
Q671
X
MUTING
R673
X
X
MAIN PWB
2-29 2-30
CN0S2
CN0S3
QGA2501F1-05
QGA2501F1-03
R213 R214
220 220
C631
D214
10/50
D213
R631
UDZS8.2B-X
UDZS8.2B-X BP
1k
R215 X
R216 X
R634
1k
4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 2.4
0V 2.6V
V V V V V V V V V
C632
10/50
BP
SCL SDA
TONE/SURROUND VARIABLE IIC BUS
LINE OUT
IC201
UPC1851BCU
MTS & TONE/VOL CONTROL
dbx NR
d01 do2VOF
A-GND
4.5 4.5 5V 4.5 1.2 5V 4.1 4.4 2.7 4.4 0V
V V V V V V V V
C214
0.1
B2
C215 R208 C217
3.3/16 1.5k 10/16 GND1
TAN 1% TAN R219
X
R220 R221
X X
Q221
C222
X
X
R217 0
R218 0 Q222 D222
X X
R901 X
R902 X
R903 X
R904 X
GND1
No.51914
ROUT
C638 C639
47/25 0.1 PS
C633
22/50
C634 C635
R632 0.015 R635 0.047
IC631
22k MY 22k MY
NJM2150AD
BBE
R639 X
R640
R633 C636 R636 C637 0
22k 0.015 22k 0.047
R641
MY MY
10k
C640
10/50
BBE_SW
LOUT
IC501
X
AMP
LOUT
C502
X
BP
R503
R506
R505
R501 X
X
X
X
R508
R507
R502 C501
R504 X
X
X X
X
C504
X
ROUT
IC501 C503
X X
AMP BP
C805
CN0AL
X
R832
X
X
R833 R834
X X
C806
R835
X
R831 X
D806
X
X
C807 X Q807 X BUFFER
R838
X
R836
R837
D803
X
X
X
C808 X
R841
R839
X
D804 X R840
X X
Q808
Q811
X
X
MUTING
MUTING
R842 R845
R843 R844
X X
X X
Q809 Q810 MUTING
X X
MUTING
C809 X R846 X
C810 X R847 X
C811 X R848 X
C812 X R849 X
C813 X R850 X
CN0AM
X
CN010
QGB1505K1-40