Sharp LC-28HM2U Service Manual page 73

LC-28HM2
AN-28SP2
Ë AMP UNIT (DISPLAY)
J
2 2 4 . 3 2 2 4 . 3 2 2 4 . 3 2 2 4 . 3
I
D 1
R 3
L N 2 SB 60
5 1 0 K
+
1 1 0 . 3 1 1 0 . 3
1 1 0 . 3 1 1 0 . 3
R 4
C 7
5 1 0 K
0. 82 uF
3 . 4 3 . 4 3 . 4 3 . 4
40 0V
-
MDS( XN )
R 5
1 5 K
H
T H1
8 D2 - 1 0 L D
C 6 1 0 0 0 p F
2 5 0 V
R S( K X )
C 10
C 3 C 4
1 0 0 0 p F
5 0 V
1 0 0 0 p F 2 5 0 V D D1 0 4
G x 2
( R P E)
R S( K H )
C 2
0 . 2 2 u F 2 7 5 V
R E- L ( E T )
F
J P J P
E
L 1
RC IL Z1230S NEZ
D
C 1
0 . 2 2 u F 2 7 5 V
R E- L ( E T )
R 1
3 9 0 K 1 / 2 W
CNW1 QCNW -1 71 4S NEZ
2 4 0 . 0 2 4 0 . 0 2 4 0 . 0 2 4 0 . 0
F 1
Q FS - A 11 1 7 SN EZ
C
( T 2 . 5 A 2 5 0 V )
C N1
QCNCM153 1S NEZ
N L
B
A
2 3 4
1
L 3
D 2 R L4 A
2 3 9 . 4 2 3 9 . 4 3 9 2 . 5 3 9 2 . 5
2 3 9 . 4 2 3 9 . 4 3 9 2 . 5 3 9 2 . 5
C 12 2 6
( 2 S K2 3 5 8 )
R 10
( 2 S K3 2 3 3 )
( K M X )
8 2 0 K
2 SK 26 6 2 Q1
P B
2 1 1 1 8 9 . 5 1 8 9 . 5
HR S L 1 8 9 . 5 1 8 9 . 5
4 . 3 4 . 3 4 . 3 4 . 3 4 5 0 V
2K V( 1k V) 6 8 u F
R 11
22 0p F 7 5 0 K
C8 2 . 5 2 . 5 2 . 5 2 . 5
0 . 1 0 . 1 0 . 1 0 . 1 C 9
R 7 R 8
5 8
1 2 0 . 6 8
R 12
2 W
1 0 K
H RN M
D 3
HZS2 7- 3
R 6
(H ZS 30 -1 )
3 . 5 3 . 5 R 41
1 0 K 3 . 5 3 . 5 (M TZ J3 0B )
R 9
3 3 K
4 . 3 4 . 3 4 . 3 4 . 3 (R D3 0E SB2)
2 2 0
1 SS 27 0 A
6 8
2 1 0 . 1 0 . 1 0 . 1 0 . 1
I C 1
D 12
A N8 0 3 2
9 5
7 3 4
2 . 5 2 . 5 2 . 5 2 . 5
DD40 7 (R PE)
C 14 0. 1u F 16 V
C 12
4 7 0 p F 5 0 V
C 13 3 . 1 3 . 1 3 . 1 3 . 1
D D1 0 4 ( R PE )
R 16
1 M
56 0p F 50 V
DD10 4( RPE)
3 . 1 3 . 1 3 . 1 3 . 1 R4 0
0
2 2 0 p F 2 KV H R R x 2
C 15 C 16
R 21
1 0 0 2 W
3 2W(3 W) H RSM
( 2 S K2 4 8 0 )
R 22 0 . 2 0 . 2 0 . 2 0 . 2 2 SK 27 0 0
Q 2
R 20
C 32
2 2 0 0 p F 5 0 V
D D1 0 6 ( R PE )
4 ( R N 20 0 2 )
1 2 K
1 6 . 0 1 6 . 0 D TA 11 4 E SA
1 6 . 0 1 6 . 0
D 4
Q 4 1 1 . 0 1 1 . 0 1 1 . 0 1 1 . 0
P C2 B
3
D 5
P C1 2 3 FY
1 SS 27 0 A
0 0 0 0 C 20
1 SS 27 0 A
1 6 . 0 1 6 . 0
1 6 . 0 1 6 . 0
R 23
7 . 6 7 . 6 7 . 6 7 . 6
C 18 Q 3
0. 1u F
5 . 6 K
Q 5
2S C1 74 1A S
0 . 0 4 7 u F 0 0 0 0 16 V
D TC 12 4 E SA
DD407 (2SC26 55 )
5 0 V R PE
( R N 10 0 3 )
(2SC36 68 )
(R PE)
C 19
0 . 8 0 . 8 0 . 8 0 . 8
R 24 1 u F 5 0 V R 25
5 1 K P W 1 . 2 K
1 7 . 6 1 7 . 6
1 7 . 6 1 7 . 6
5 6 7 8
80
T 1 D1 0
P 12 0 5
8 , 9
4
R 13
8 2 0 K
1 5 . 2 1 5 . 2 1 5 . 2 1 5 . 2
1 8 9 . 2 1 8 9 . 2
1 8 9 . 2 1 8 9 . 2
R 14
7 5 0 K R 17
1 8 0 K 1 / 2 W
2 . 5 2 . 5 2 . 5 2 . 5
2 0 3 . 9 2 0 3 . 9
2 0 3 . 9 2 0 3 . 9
R 18
1 8 0 K 1 / 2 W
R 15
1 0 K
6 1 0 , 1 1
3 9 4 . 4 3 9 4 . 4 3 9 4 . 4 3 9 4 . 4
1 K 1S S2 70 A
R 19
1 6 . 2 1 6 . 2
1 6 . 2 1 6 . 2 R 26 D6
12 .6 12 .6
12 .6 12 .6
1 8 K
2 2 0 1 / 2 W 47 00 pF 5 0V DD10 7( RPE)
11 .7 11 .7 11 .7 11 .7
R 27 C2 2
1 3 . 2 1 3 . 2 1
1 3 . 2 1 3 . 2
0 . 1 u F 1 6 V 5 . 7 5 . 7 5 . 7 5 . 7 8 . 3 8 . 3 8 . 3 8 . 3 D 7
R 31
DD40 7
H ZS 16 - 3
C 21 R 28
6 8
(R PE)
1 K ( MT ZJ 1 8 A)
1 3 . 1 1 3 . 1 1 3 . 1 1 3 . 1
D 8
( R D 18 ES B1 )
1 SS 27 0 A
R 29
1 . 8 K
3 4 R 30
1 9 . 1 1 9 . 1 1 9 . 1 1 9 . 1
1 0 0
1 8 .8 1 8 .8 1 8 .8 1 8 .8
P C1 B
P C1 2 3 FY C2 3
0. 01 uF 5 0V 2
DD350(RPE)
C 24
AG01 (D 1N L4 0)
1 5 0 u F 3 5 V P W (1 GU42 ) 15 . 6 15 . 6
15 . 6 15 . 6
3
D9
C 34
1 0 0 0 p F 2 5 0 V R S( K H ) x 2
C 35
9 10
11
F MB 26L
L 4 R C I LC 11 9 6 SN EZ
(S F1 0S C6 )
1 2 . 9 1 2 . 9 1 2 . 9 1 2 . 9
R 33
1 2 . 2 1 2 . 2 1 2 . 2 1 2 . 2
22 0
D1 1
1
HZS1 5- 2
R 34
(M TZ J1 5C )
1 K
C 25 C 26 C 27 (R D1 5E SB3)
1 1 . 2 1 1 . 2 1 1 . 2 1 1 . 2
PC1A
2
C 28
PC12 3F Y R 35 1 0 K
R3 2
10 0
11 .2 11 .2
11 .2 11 .2
1
0 . 1 u F 1 6 V
D D4 0 7 ( R PE )
PC2A
PC12 3F Y
IC 2
2
TA 76 431S
3 3 0 u F 2 5 V P W x 3
C 36
1 0 0 0 p F
2 5 0 V
R S( K H )
FG
12 13 14 15
81
LC-28HM2
AN-28SP2
1 2 . 9 1 2 . 9 1 2 . 9 1 2 . 9
1 DC13 V
R 36
4 . 7 KF
4 DC13 V
2 . 5 2 . 5 2 . 5 2 . 5
C 29 C 30
R 37 R 39
1 1 8 F 3 3 0 u F 3 3 0 u F
1 . 2 K 1 / 2 W
2 5 V 2 5 V
2 . 2 2 . 2 2 . 2 2 . 2
P W P W
2
DCGN D
R 38
1 KF
5 DCGN D
C 31
V COM 4 9 V CO M
N U
R 3 6 RI N
2 10
GND GN D
L 1 11 LI N
CN2
QCNCM151 4S NEZ
8 R+
13 R+
J P N U
7
R-
12
R-
3 N C
CN3
QCNCW171 2S NEZ
1
R +
3 R +
2 R -
4 R -
CN4
QCNCW1714S NEZ
17
16 18 19