Alto DPA 6000, Service Manual

Page: 14 / 73

1
2
3
4
5
6
78
A B C D
8
7
6
5
4
3
2
1
D C B A
C2
22P
C4
22P
R2 750R R4 750R
C1 10/16 C3 10/16
R1 10K R3 10K
C5
22P
C6
22P
R6 10K R8 10K
R5 2K2 R7 2K2
A
GND
A
GND
A
GND
A
GND
A
GND
C7 100N
R9 1K
Q2 BR15
R10 10K
R11 10K
GND
GND
R12 1K5
R13 1K5
R14 1K5
R15 1K5 R17 1K5
R16 1K5
R18 1K5
R19 1K5
R21 1K5
R20 1K5
GND
R22 1K5 R24 1K5 R26 1K5 R28 1K5
R23 1K5 R25 1K5 R27 1K5 R29 1K5
GND
RELE
1 2 3 4 5 6
CN3 CN-6P
-90
C8 1000/25 C9 1000/25
Vin
GND
V
out
U3 7805
Vin
GND
V
out
U4 7905
C10 10/16 C11 10/16
C12 100N C13 100N
GND
1 6 2 7 3 8 4 5
J1 D8
1 3 5 7 9
11 13
2 14 4 10 6 12 8
15 17 19
18 20 16
J2
1 3 5 7 9 11 13
2
14
4
10
6
12
8
15 17 19
18 20 16
J3
1 6 2 3 4 5
J7
1 3 5 7
2
9
11 13
12 8 4 14 10 6
J4
1 3 5 7
2
9 11 13
12
8 4
14 10
6
J5
GND
1 6 2 7 3 8 4 5
J6
RELE
C14 100N C15 100N
A
GND
TO
D
is
pl
ay
B
oa
rd
TO
D
is
pl
ay
B
oa
rd
T
O
DSP B
oa
rd
T
O
DSP B
oa
rd
T
O
DSP B
oa
rd
T
O
DSP B
oa
rd
T
O
DSP B
oa
rd
TO
A
M
P B
oa
rd
T
O
R
S-
XXX B
oa
rd
1
2
3
4
5
6
7
8
9
10
CN1 HEA
D
ER 5X2
3 2
1
U1A
MC33078
5 6
7
U1B
MC33078
4 8
U1C
MC33078
3 2
1
U2A MC33078
5 6
7
U2B MC33078
4 8
U2C
MC33078
+5
V
D
+5
V
D
+5
V
D
RL1 RELA
Y-2-24
A
GND
A
GND
D1 1N4148
+5
V
D
-5V
D
-5V
D
+5
V
D
GND
1 2 3
CN2 CON3
GND
GND
-5V
D
+5
V
D
D5 SF1B D2 SF1B
D3 SF1B D4 SF1B
DP
A
-P
W
R
.S
ch
Ti
te
l
Si
ze
Fi
le
:
Da
te
:
Dr
aw
n By
:
Sh
ee
t
Re
vi
si
on
M
ode
l N
o:
12-
A
pr
-2004
C.
C.
LI
N
A
LT
O
: D
PA
4000 -
D
SP
_P
W
R
1
1o
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D
PA
4000
V
E
R
030728
A4
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