JVC AV-48WP74 Service Manual page 56
Basic chassis sb3
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MAIN PWB CIRCUIT DIAGRAM (12/12) SHEET 12
POWER & DEF
PWB(1/2)
SHEET 19
VOLTAGE ( V )
PIN NO.
PIN NO.
IC1511
IC1991
1
5.1
1
2
3.2
2
3
0
3
4
5.1
4
IC1801
IC1993
1
5.2
1
2
3.1
2
3
0
3
IC1941
4
1
25.9
5
2
9.3
6
3
0
7
4
9
Q1981
5
2.1
E
IC1942
C
1
26.9
B
2
5.3
Q1982
3
0
E
4
4.9
C
5
2.1
B
IC1943
Q1983
1
28.5
E
2
3.4
C
3
0
B
4
1.2
Q1984
5
6.7
E
IC1981
C
1
28.5
B
2
2.7
3
0
4
1.2
5
6.1
2-28
R1971
OPEN
OMR
Y1952
0
QRN143J-0R0X
L1952
OPEN
R1972
8.2
OMR
D1946
MA111-X
D1945
MA111-X
CN1002
QGB1506L1-16
R1973
10
GND
OMR
GND
L1951
OPEN
VOLTAGE ( V )
13.2
11.7
0
R1974
2.4
OPEN
4.9
OMR
L1950
0
0
0
QRN143J-0R0X
C1951
1.6
1000
9
GND
0
9
9.1
R1954
9.1
9.8
0
0
0
3.1
0
R1956
OPEN
6.2
0
5.1
5.1
0
SHEET 11
IC1991
PQ12RD11
H1991
OPEN
R1991
D1991
R1993
470
OPEN
MA111-X
R1992
C1991
C1993
1.8k
100
/25
OPEN
GND
GND
GND
GND
C1992
470
/16
IC1941
SI-8090S
H1941
L1941
GND
QQR1129-003
C1943
OPEN
C1942
GND
1000
/16
D1941
RK34-LFC4
K1943
R1943
CE42050-001Z
1.5k
C1941
GND
1000
/35
IC1942
SI-8050S
H1942
CEHT11B-002QS
L1942
GND
QQR1129-003
C1946
OPEN
GND
C1945
D1942
QEZ0256-128
D3S4M-F1P20
1200
/10
K1944
CE42050-001Z
GND
C1944
1000
/35
IC1943
PQ1CG21H2FZ
L1947
GND
QQR1129-003
R1952
/35
D1943
330
RK34-LFC4
GND
C1952
1000
/10
Q1964
R1953
2SD601A/QR/-X
C1955
.1
/25
NCB31EK-104X
220k
Q1965
UN2213-X
GND
C1956
R1955
OPEN
OPEN
GND
D1811
D1812
OPEN
OPEN
Y1813
Y1814
OPEN
OPEN
No.52105
POWER & DEF
PWB(1/2)
LINE FILTER PWB
SHEET 19
SHEET 21
F QJB003-044214
CN1001
QGB1506L1-16
Y1821
GND
0
R1841
Q1841
OPEN
OPEN
R1842
OPEN
D1992
OPEN
Q1842
OPEN
GND
Y1991
0
D1801
1SR35-400A-T2
R1968
1k
R1969
1k
QRK126J-5R6X
C1986
R1941
R1957
R1966
OPEN
OPEN
5.6
12k
1/2W
R1942
R1967
1.5k
1.2k
GND
GND
GND
R1947
1.5k
2SD601A/QR/-X
R1961
1k
R1965
1k
D1964
R1944 22 1/2W
R1958
QRK126J-220X
OPEN
MA111-X
R1962
6.8k
C1987
OPEN
R1963
R1945
1.8k
1k
R1946
GND
GND
1k
GND
Q1961
2SD601A/QR/-X
D1968
PTZ6.8B-X
GND
C1988
R1948
R1959
OPEN
1.8k
OPEN
1/2W
0.5%
R1949
R1950
1.2K
0.5%
8.2k
D1813
NRSA63D-122X
OPEN
GND
C1811
OPEN
C1812
AV-48WP74
AV-56WP74
SHEET 10
CN100F
D1802
MA111-X
R1801
OPEN
IC1801
TA48M033F
C1802
10
/50
C1805
OPEN
Y199
0
C1803
47
/25
Y1995
0
L1
QQL26A
D1965
L1
MA111-X
QQL26AK
GND
Q1962
L195
D1944
OPEN
L19
22
QQL26AK
L1946
22
QQL26AK
R1964
22k
C1961
1
/50
D1962
MA3030/H/-X
GND
D1967
PTZ6.8B-X
L1948
10
QQL26AK-100Z
R
IC1811
O
OPEN
R1
H1811
O
R
O
R1818
OPEN
OPEN
R
GND
R1819
OPEN
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