Alto Dragonfly PM-12 Service Manual page 33

1
D
VCC2
R6
R7
150R
19K6
R18 R5
C6
75R0 68R0
C
C3 R4
3N3 1K
27N
VCC2
J2
1
C16
2
3
4
27N
CON4 C17
R22
19K6
470N
R20
1K
C15
B
68N
A
1
2
C14
R17
VCC2
180R
C4
27N
R3
1K
68N U2
C5
2 3
COMP VCC
47P
6 1
EA- COL
4 8
EA+ ISET
R1
R19
5 7
68R0
REF GND
1K
UC39432BD
C18
470P_NPO
2
R9
27K
R8
C12
10K
470P_NPO
R12
FFEDBK
2K2
C1
U3 R2
2.2U/35V
1 5
47R0
C13
27N
2 4
OPTO CNY17-3T
R11 R10
4K7 43K
050113 modify
VR1
0R
R23 100K-->33K
C7 270P-->10K
R10 47K-->43K
R11 24K-->4K7
VR1 REMOVE 20K-->0R SHORT P.1-P.3
R15 3R3-->4R3
32
3
VFWD
D4
BAS85
VCC1
U1
6 3
VFWD VCC
D3
TMBYV10-40
12 4
VREF OUT
D2
TMBYV10-40
8 2
FEEDBK ILIM
R23
14
33K
SOFTST
C10
27N
9 1
ISET COUNT
7
SLOPE
10 5
RAMP PGND
11 13
FREQ GND
UCC3571D
C8 C7
180P_NPO 10K
Titel
ALTO : PM12 POWER SUPPLY
Size Model No:
A3 PM12
13-Jan-2005
Date:
PMPWRCTL.Sch
File:
3
4
D
R13
C2
24K
10U/50V
OUT
D1
C
R14 R16
CURR
180R 10R7
1N414BS
CURR/10
R15
C11
4R30
470P_NPO
VCC1 J1
B
1
2
3
VFWD
4
OUT
5
6
CURR
7
8
CURR/10
9
FFEDBK
10
CON10
A
Revision
VER050113
Sheet 1 of 1
Drawn By: C.C.LIN
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