Sharp LC-20SH6U Service Manual page 43

LC-20SH6U
ËMAIN Unit-6/7
H
R733
C719
100K
100P
F
R705
100K
14
D R717
22K
R706
R713 R721
100K
22K 33K
D F
G
C701 R725
0.033u
1M
C707
25V
1
1000P
R701 R737
33K 5.6K
F
C720
100P
R707
100K
14
D R718
22K
R708
R714 R704
100K
22K 390K
E D
F
C702 R728
0.033u
20K
C709
25V
F
1
1000P
R702
33K
D
C
B
A
1 2 3 4
MAIN7 (DC/DC)
R741
10K
R745
C722
510
0.012u
25V 6
Q701
13 12 11 10 9 8
UML2N
5 4
IC701
IXA828WJ
1
5V
1 2 3
2 3 4 5 6 7
R750 C728
510
10u
1/8W 16V
KZA109WJ
C726
C721
180P 1000P
D701
(CH) (CH)
RB051L40
R742
R734 10K
33K
F
R751
C723
510
0.012u
25V 6
Q702
13 12 11 10 9 8
UML2N
5 4
IC702
1
IXA828WJ
1 2 3
3.3V
2 3 4 5 6 7
R752 C731
510
10u
1/8W 16V
KZA109WJ
C727
1000P
D702
(CH)
RB051L40
5 6 7
50
5 4
Q705
RTQ035P02
2 3
FB703
0253TA
L701
15uH
PA154WJ
C734 C737
10u 10u
10V
10V
KZA176WJ KZA176WJ
5 4
Q706
RTQ035P02
2 3
FB704
0253TA
L702
FB705
15uH
0209TA
PA154WJ
C738
C735
10u 10u
10V
10V
KZA176WJ KZA176WJ
R754
100K R757
D 22K
R756
R755
22K
100K
D
C744
1000P
C742
0.033u
25V
C743
R753
0.1u
33K
25V
8 9 10 11
Vout2=((180K+15K)*1.05/33K)-0.2=6.0V
Vout1=(150K+27K+12K)*2/12K=31.5V
R774
10K
R775 C753
33K
R777 R776 0.1u
Z
15K 180K
25V
F F
R771
0.2 1.25 2.0 150K
8 7 6 5 F
CNTRL FB2 VREF FB1
(VHIMM3203B+-1Y) R770 R772
12K 27K
*IC706
F F
MM3203B
SW2 SW1
VIN GND
32V/-6V Reg.
1 2 3 4
C752
D707
1u
12.3 0
RB160M40
KZA215WJ
*D706
RB160M60
C754 L707
1u 33uH FB707
(VHDRB160M60-1Y)
25V PA051WJ 0051TA
L706
PA168WJ = 47uH
KZA114WJ 33uH
PA051WJ
Q712
R768
FMMT718
2.7K
C751
R769
10u
3.9K
16V
KZA109WJ
*D708
BAS316
R761
C746
200K
33P
F
C747
R764
0.1u
100
3
R763 25V
10K Z
R758
14 13 12 11 10 9 8
560K R765
4
F 330
IC705
IXA828WJ
C748
B14V 0.022u
R766 25V
R759
510
20K
1 2 3 4 5 6 7
F
5
Q709
UML2N
1 2
12 13 14 15
51
LC-20SH6U
DUNTKD673DE
(QPWBXD673WJ)
TO SUB6(INTERFACE)
Q713
KRC104S
3.2
B-6V
0
0 B32V
(PWB)
B12V
B5V
B3.3V
SIG_VCC
POW
B14V
FB706
0253TA
2 1
L705
15uH
Q710
PA154WJ
UML1N
5
D705
RB051L40
D
Q711
G
S RHP020N06
4
C749
C750
10u
R767 10u
25V
30K 16V
3
KZA110WJ
KZA109WJ
16 17 18 19