JVC AV-48WP34/AHA Service Manual page 71

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MAIN PWB CIRCUIT DIAGRAM [9/12]
LF PWB
CN00F
C932
R931
3.3K
47/25
R933
68K
R932
AU_VCC
100
Q931
SOUND
*1
AU_GND
PROCESS
R795
X
D931
C933
*3
X
D715
*3
AV_9V
D716
*3
REGULATOR
R701
100k
R702
Q701
10k
*4
C701
D702
0.1/25
*3
B3
Y915
X
IC704
TA48M033F-X
D701
C703
C707
1SR35-400A-T5
47/25
X
BS_5V
C702
C704
2.2/16
2.2/16
B1
B1
REGULATOR
Y702
X
LOB_POW
BS_POW
TU_POW
AFT2
U/V TUNER
AFT2
X_RAY
EPG BASE
X_RAY
R991
Q715
27k
R992
C/N_AFT1
*2
C/N_AFT1
12k
U/V TUNER
D718
R993
*3
12k
*
Q714
SCL0
SCL0
2SC2785/JH/-T
D719
C802
SDA0
0
SDA0
10/50
R994
33k
AP_DATA
AP_DATA
AP_CLK
AP_CLK
AP_REQ
AP_REQ
TV_L2
REGULATOR
5V
MAIN PWB
(MICOM)
SSB-1051A-M2
DEF. POWER PWB
CN001
QGB1506L1-16
Y956
0
STB12V
D932
X
D933
*5.1
R735
100k
Q702
R706
R709
R710
*2
Q703
100k
Q704
100k
Q705
100k
*2
*2
*2
R703
R704
R707
R712
INVERTER
0
220
0
0
R718
INVERTER
INVERTER
INVERTER
R812
Y701
X
R705
R708
C705
R713
X
X
X
X
X
Y742
STAT
AFT2
0
IC703
C/N_AFT1
IC702
I2C MEMORY
S-80828ALNP-W
AT24C32-48WP30
RESET IC
EE_CDS
C709
R714
D713
D714
SCL1
100p
10k
C712
*3
*3
CH
10/50
SDA1
R716
100
D704
C711
C706
*3
0.1
1/16
R715
B1
100
CZ
C710
REMO
0.1/25
D703
D705
B3
x
x
SCL0
C869
IC854
X
R835
X
X
SDA0
C867
C864
OUT1
X
R879
X
VCC
R878
R867
X
0
X
470k
R841
OUT2
C866
I2C_STOP
470k
X
0
C865
0
X
GND
JST_CLK
R866
0
470k
R833
X
R877
X
R890
C868
X
X
(9/12)
D891
*8.2
D892
*8.2
D893
*5.1
D894
*5.1
D895
*5.1
R891
220
R896
56k
R897
56k
CN00C
No.51914
AV-48WP30
AV-48WP30
Y947
Y948
0
0
R774
R819
R822
X
R818
X
4.7k
R760
0
0
R820
R823
C733
39k
C721
D721
120k
0.01
4.7/50
MA704A-X
R737
100
C732
C722
0.01
4.7/50
R745
R747
X
0
C716
0.01
D722
MA704A-X
C719
4.7/50
R829
R832
10k
10k
R750
R821
100k
Q708
X
X
R738
R736
R834
33k
33k
1k
R830
R831
X
1k
1k
R793
C720
INVERTER
100k
R717
R719
0.001
X
0
CH
R720
C735
X
NCB31HK-153X
R721
1k
X_RAY
C713
R722
X
C745
0
.015
R803
47k
C714
R723
X
R724
10k
X
B1_POW
C/N
D710
X
X_RAY
R725
0
EE_CDS
R726
0
KEY2
KEY1
R727
10k
SCL1
SDA1
D711
REMO
R728
C715
X
R802
AP_REQ
1k
0.001
100k
CH
VSS
SL701
OSC2
QAX0248-001Z
OSC1
4MHz
VDD
SCL0
AP_CLK
SDA0
C717
C718
0.1
CZ
47/25
NC(DOLBY)
NC(DOLBY)
R730
R729
NC
2.7k
100
P_MU
R732
R731
2.7k
100
R733
1k
R811
100
R755
X
X
R741
X
R742
R743
X
R783
X
100
R711
X
R893
220
R849
x
R848
x
C801
R813
R814
390p
X
1k
CH
Q709
x
CN0AJ
2-21
2-22
CN00Q
X
L901
R769
X
X
Y910
X
D709
*3
R775
3.3k
R762
R825
120k
X
R898
R828
D707
X
R827
X
X
X
R746
R826
3.3k
X
R899
R772
D706
X
Y708
Y706
R824
X
X
X
Y707
R749
120k
R846
X
R752
33k
R794
R765
R779
R780
100
1k
1k
10k
R777
R778
R753
10k
10k
33k
R771
X
R763
R751
33k
47k
R764
R776
33k
33k
R836
100
R837
33k
R838
100
R839
R773
LED_DATA
33k
X
VDD/VPP
R781
33k
CLH
C726
VREFHS
C724
1/50
1/50
MAIN_CCD
K702
X
VSS
NC
GND10
SUB_CCD
C730
C729
C728
VREFLS
47/25
1/10
R784
6.8k
1/50
MAIN MICRO
CLL
C731
1/50
NCB21AK-105X
PROCESSOR
AVDD
COMP
K703
R782
IC701
IREF
1.2k
NQR0199-004X
IP_ERR
IP_ERR
MN102H57KPB
R840
1k
VREF
OSD_R
OSD_G
R847
100
POW_LED
PowerLED
R785
OSD_B
10k
OSD_YM
IP_RESET
R787
5.6k
C741
X
C742
R996
100
X
R766
*
R997
100
3.3k
R998
100
R767
OS_B
150
31/33
L714
L713
3.3
3.3
NQL085J-3R3X
NQL085J-3R3X
OS_YM
L712
NQL085J-3R3X
L711
NQL085J-1R0X
R770
C734
C708
100
47p
47p
CH
CH
C725
47p
CH
D717
x
R807
X
AV SELECTOR
EPG BASE
IP BASE
No.51914
SOUND PROCESS
SCL2
SDA2
S4_US
CN016
QGA2001C1-08
VPP
VPP
VDD
RST
RST
SBT1
SBT1
SBD01
SBD1/BS_TXD
SBO01
SBO1/BS_RXD
GND
ECORST
CN00G
ROT_CO_L
ROT_CO_L
ROT_CO_R
ROT_CO_R
MECA_SW
MECA_SW
REMO
REMO
STB5V
STB5V
ON_TIM
POW_LED
POWERLED
LED_CLK
LED_CLK
LED_DATA
LED_DATA
3.3V
3.3V
SN_CO_L
SN_CO_L
SN_CO_R
SN_CO_R
EE_CDS
EE_CDS
S4_US
KEY1
KEY1
KEY2
KEY2
GND
GND
SCL0
SCL0
SDA0
SDA0
12V
LOB_POW
VPP
12V
X_RAY
LOB_POW
Q706
R889
X_RAY
10k
*1
Q710
R887
C757
*1
1/50
220
AP_Y
SUB_CCD
R888
C756
Y705
X
2.2k
0.0012
R880
1k
CN00Z_G
R883
Q707
10k
CN00Z
*1
Q711
C755
OSD_R
R885
*1
1/50
GND
X
SW_R
R882
OSD_G
2.2k
Y704
X
GND
C727
C754
R884
SW_G
1/50
0.0012
1k
OSD_B
OS_R
GND
OSD_R
Y741
X
SW_B
OS_G
OSD_CK
Y739
X
OSD_G
GND
OSD_YM
OSD_YS
OSD_B
Y738
X
OSD_H
OS_YM
Y733
X
OSD_V
OS_YS
Y732
X
BUSY
CONVBUSY
Y740
0
SW
CONV.SW
Y736
0
31/33
STAT
MCN_H
Y734
0
3.3V
MCN_V
Y737
0
GND
OSD_YS
Y735
0
5V
STAT
C758
X
GND
CN00H
H_BLK
3.3
H_BLK
B1_POW
B1_POW
C753
R799
X
X
R798
X
GND
R797
HP_MU
X
B1
GND
R796
C751
X
C752
STB3.3V
X
Vcc
.1/16
IC705
X
5V
PC_V
PC_G
PC_H
V4_GND
C4
V4_GND
Y4
V4_GND
V4
V4_GND
L4
V4_GND
R4
HP_MU

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