JVC AV-48WP74/AHA Service Manual page 95

MAIN PWB CIRCUIT DIAGRAM (6/12) SHEET 6
PIN NO. VOLTAGE (V) PIN NO. VOLTAGE (V)
IC3001 89 0
1 0 90 0
2 3.3 91 0
3 3.3 92 0
4 2.5 93 0
5 3.3 94 NC
6 2.1 95 NC
7 5.9 96 NC
8 (3.3) 97 NC
9 3.3 98 NC
10 0 99 3.4
11 0 100 NC
12 2.6 101 NC
<MAIN >
13 1.6 102 NC
PIN NO. VOLTAGE (V)
14 1.6 103 NC
15 3.3 104 NC
IC3002
16 3.3 105 NC
1
17 3.3 106 0
2
18 3.3 107 3.4 3
19 0 108 NC 4
20 0 109 NC
5
21 NC 110 NC
22 0 111 NC
23 3.3 112 NC
24 0 113 0
25 0 114 3.4
26 0 115 NC
27 3.3 116 NC
28 NC 117 NC
29 3.3 118 0
30 0 119 3.4
31 0 120 NC
32 3.3 121 NC
SHEET 7
33 NC 122 NC
NQR0450-002X
34 3.3 123 NC
VY_SWSUB
35 3.3 124 NC
36 0 125 NC
37 - 126 NC
38 3.3 127 NC
39 NC 128 NC
40 3.3 129 0
41 0.9 130 3.4
42 0.9 131 3.4
43 0 132 NC
44 0 133 NC
45 NC 134 0
46 0 135 3.3 NQR0450-002X
C_SWSUB
47 3.4 136 -
48 0 137 -
49 0 138 NC
50 NC 139 NC
51 0 140 0
52 0 141 3.3
53 0 142 NC
54 0 143 NC
55 0 144 NC
56 0 145 NC
57 0 146 NC
58 0 147 NC
59 2.7 148 NC
60 2.7 149 NC
61 2.7 150 NC
62 3.4 151 NC
63 3.4 152 0
64 NC 153 3.3
65 0 154 NC
66 NC 155 3.3
67 0 156 0
68 0 157 0.5
69 DIGI 158 3.3
70 DIGI 159 2.4
71 DIGI 160 -
72 DIGI 161 3.3
R3081
0
73 DIGI 162 0
74 DIGI 163 0.5
75 DIGI 164 3.3 GND
GND2DD
R3082
0
76 DIGI 165 2.4
77 DIGI 166 -
78 3.4 167 3.3
GND GND2DD
79 DIGI 168 0.5
80 DIGI 169 0.3
81 DIGI 170 3.3
82 DIGI 171 2.4
83 DIGI 172 0.5
84 DIGI 173 3.3
85 DIGI 174 0
86 DIGI 175 0
87 0 176 NC
88 3.4 DIGI : Digital
IC3001-7 IC3001-13
[H]
-M2
2.3Vp-p
9V
C3078
0.1 /16
L3003
GND2DA NQR0413-003X
5.1
VCC9VA
GND2DA
0
IC3002 C3070 C3069
R1170H331B-X 0.01 47 /16
0
5V
5.1
GND2DA
L3004
3.2
NQR0413-003X
R3058
C3080 1k
10 /16
GND2DA
QBTC1CK-106Z
GND2DA
C3077
0.33 /10
C3073
OPEN
C3068 C3067
0.01 47 /16
GND2DA
GND2DA GND2DA
R3011
C3005 0
C3006
C3004 15P 4.7 /16
R3001 0.1 /16
12k
Q3001
LC3002 2SD601A/QR/-X
GND2DA GND2DA
R3010
R3006
R3003 1.5K Q3002 1.5k
2SD601A/QR/-X
C3001 100 NRSA63J-152X
33 /10
R3008 C3017 4.7 /50
QENC1AM-336Z
0
R3005 L3001
180 NQL092K-6R8X
R3002 R3004 C3002 C3003 R3007 R3009
33k 1k C3019
3.3k 150p 120P 1k
NRSA63D-102X 0.01
C3020
0.5%
0.01
R3025 22k
Q3003
2SB709A/QR/-X R3026 22k
C3021
0.01
R3022
C3011 0
C3012
C3010 15p 4.7 /16
R3012 0.1 /16
12k
Q3004
LC3001 2SD601A/QR/-X
GND2DA GND2DA
R3021
R3017
Q3005 1.5k
R3014 1.5K
C3007 2SD601A/QR/-X
100
0.33 /10 C3027
NCB21AK-334X R3019 7p
R3016 L3002 0
Q3006
180 NQL092K-6R8X
2SB709A/QR/-X X3001
NAX0570-001X
R3013 R3015 C3008 C3009 R3018 R3020
C3028
33k 3.3k 150p 120p 1k 1k
7p
NRSA63D-102X
0.5%
R3028
470
C3033 C3032
33p 56p
R3030
470
C3035 C3034
33p 56p
R3060
1.8K
C3091 OPEN
Q3007
2SB709A/QR/-X
C3092 OPEN
R3056
R3061 0 0 NRSA02J-0R0X
GND GND2DA
C3093
OPEN
R3062 0 GND GND2DA
R3057
0 NRSA02J-0R0X
GND
GND2DD
C3094 OPEN R3063 0
GND
GND2DD
K3001
0 NRSA02J-0R0X
R3064 0
C3095 OPEN GND2DA GND2DD
GND2DA
GND2DD
C3096 OPEN
GND GND2DA
C3097 OPEN
GND
No.52105
AV-48WP74 AV-48WP74
AV-56WP74 AV-56WP74
IC3001-136 IC3001-137 IC3001-157
[H] [V] [H]
2.1Vp-p 3.4Vp-p 3.3Vp-p
2DYCRY 2DYCBY
R3049
100k
R3055 R3054 C3066
6.8k 10k 0.1 /16
R3050
56k
L3006
0 NRSA02J-0R0X
C3099 4700p
C3100 4700p
AVSS
C3013 0.1 /16
AVDD( ADC)
C3014 100 /16
AVDD( ADC)
C3015
YREFH
C3016 0.1 /16
YREFM
0.1 /16
CLH
R3023 47k
YIN
CLL
R3024 22k
YREFL
C3018 0.1 /16
AVSS
AVSS
CREFH
CIN
CREFL
C3022 0.1 /16
VIN
C3023 0.1 /16 IC3001
UIN MN82832
C3024 0.1 /16
AVDD( ADC)
C3025 10 /16
AVDD( ADC)
AVSS
2D YC SEP &
AVSS
L3005 0
NRSA02J-0R0X NC TVROUT1
CHROMA DEMOD
AVSS
C3026 0.1 /16
AVDD( DLL)
XI
AVSS
XO
C3029 0.1 /16
AVDD( DLL)
NC
TCLKO
C3030 0.1 /16
LCKI
AVSS
R3027 470
LCKO
C3031 0.1 /16
AVDD( DLL)
NC TCPOUT1
C3036 0.1 /16
AVDD( BURST)
C3037 0.1 /16
FSCI
AVSS
R3029 470
FSCO
C3038 0.1 /16
AVDD( BURST)
NC TCPOUT2
C3039 0.1 /16
AVDD( BURST)
C3040
HREFI
OPEN
HREFO
AVSS
AVSS
GND2DA
R3031
0
5V
R3059
1K
C3098
OPEN
C3041
10 /16
C3079
47P
GND
R3041
R3038 OPEN RA3001 RA3002 RA3003
OPEN
R3065 10K 10K 10K
R3032
C3043
100 0
OPEN NRZ0040-103X NRZ0040-103X NRZ0040-103X NRZ0040-103X
GND2DA
R3042
10k
GND2DD C3081
C3084
OPEN
OPEN
GND2DD GND
C3082
C3083
150p
OPEN
GND
GND
LC3006
LC3008
NRQ0450-004X NRQ0405-002X
GND GND
LC3007
NRQ0405-002X
GND
SHEET 2
2-17 2-18
PIN NO.
IC3001-163 IC3001-169
Q3001
[H] [H] [H]
Q3002
Q3003
1.1Vp-p 0.6Vp-p 0.6Vp-p
Q3004
Q3005
R3080
3.3V
0
Q3006
GND Q3007
VCC2YCD
C3072
0.1 C3071 R3501
47 /16 0
/16
GND2DD
C3501 R3503 R3508
C3504 15p
0.1 /16 1.8K 0
NC GND2DA R3505
NC
C3053 4700p 10k
GND2DA
DVDD
R3549 Q3502
22k R3504 2SD601A/QR/-X
DVDD
180
Q3501 R3512
DVSS C3519
2SB709A/QR/-X OPEN
QENC1CM-336Z 33 /16 L3501 R3507
FI NC NQL092K-6R8X 100
2DYCY
DUVO7 NC R3502 R3511
100
C3502 C3503 R3506
DUVO6 NC
100p 120p OPEN
DUVO5 NC
R3509 R3510
2.2k OPEN
DUVO4 NC R3550
22k
NC C3505
DUVO3
OPEN
DUVO2 NC
GND2DA
DUVO1 NC
GND2DA
DUVO0 NC
R3517
C3052 4700p
0
DVDD
DVSS
C3507 R3519
LDQM NC C3510 15p
0.1 /16 1.8K
UDQM NC
GND2DA R3521
10k
CKE NC
GND2DA
C3051 4700p
R3552 Q3506
DVDD
22k R3520 2SD601A/QR/-X
180
DVSS
Q3505
C3520
QENC1CM-336Z 2SB709A/QR/-X
CS NC 33 /16 L3502 R3523
NQL092K-6R8X 100
2DYCBY
WE NC
R3518
BA NC 100
C3508 C3509 R3522
CAS NC 100p 120p OPEN
R3525
RAS NC
2.2k
C3050 4700p
DVDD R3553
22k
DVSS
NC
ADS0
ADS1 NC
R3533
ADS2 NC
0
ADS3 NC
ADS4 NC
C3513 R3535
C3516 15p
ADS5 NC 0.1 /16 1.8K
C3049 4700p
GND2DA R3537
DVDD
10k
GND2DA
ADS6 NC
R3554 Q3510
22k R3536 2SD601A/QR/-X
ADS7 NC
180
NC Q3509
ADS8 C3521
QENC1CM-336Z 33 /16 2SB709A/QR/-X L3503 R3539
ADS9 NC NQL092K-6R8X
100
2DYCRY
ADS10 NC R3534
100 C3514 C3515 R3538
TREFCLK
R3044 0 100p 120p OPEN
TDCLK
R3043 0 R3541
DVSS 2.2k
R3555
VREFTEST 22k
CPTEST
SVPX
SHPX
C3085 C3086
OPEN 1500p
C3048
4700p
GND
RA3004 C3047
10 /16
10K
GND2DD
R3071 R3072 R3073 R3074
0 0 0 0
GND2DD
GND GND2DD GND GND2DD GND2DA GND2DD GND2DAGND2DD
R3076 R3077 R3078 R3079
0 0 0 0
GND GND2DA GND GND2DA GND GND2DA GND2DD GND2DA
No.52105
VOLTAGE (V) PIN NO. VOLTAGE (V)
C 0
E 5.8 B 0.2
C 9.0 Q3501
B 6.4 E 5.2
C 0
E 4.3 B 4.5
C 9.0 Q3502
B 4.9 E 4.6
C 9.0
E 4.9 B 5.2
C 0 Q3505
B 4.2 E 5.2
C 0
E 5.8 B 4.6
C 9.0 Q3506
B 6.4 E 4.6
C 9.0
E 4.2 B 5.2
C 9.0 Q3509
B 4.8 E 5.2
C 0
E 4.9 B 4.6
C 0 Q3510
B 4.2 E 4.6
C 9.0
E 0.9 B 5.2
R3513 R3515 C3506
OPEN OPEN 4.7 /16
GND2DA
Q3503
OPEN
GND2DA
R3551
LC3501
0 NQR0450-004X
2DYC_Y
R3516
Q3504
68
OPEN
0
R3514
OPEN
C3512
4.7 /16
GND2DA
GND2DA
LC3502
NQR0450-004X
SHEET 7
2DYC_BY
R3532
68
C3518
4.7 /16
GND2DA
GND2DA
LC3503
NQR0450-004X
2DYC_RY
R3548
68
LC3004 NQR0450-004X
SVP
SHEET 8
GND
NQR0450-002X
LC3005
SHP
GND
R3075
0
GND