Main P.c.board; Control P.c.board - Fisher DAC-204 Service Manual

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TRANSISTOR DC VOLTAGES
SYMBOL No.|
DEVICE
B..}
C
E
106
2801227 | 9.3V_|
12.6V
Qt
2SB911_|
—9.3V | -12.6V
_ MAIN P.C.BOARD
(BOTTOM VIEW)
-17—
IC PIN NUMBERS
DC VOLTAGES
SYMBOL No.[ DEVICE
1
2
24
5
6
7
8
: 9
40
1
12
13
4
1
1
|
6
| 17
[18
19
20
(C106
YM3815 | 5.2V | 2.3V | 2.3V | 2.6V [ OV | 52vV } OV
4.4V | OV
ov
OV
ov
ov
| 52av]
ov | 03v
| Sav
[ 52V
24
25
| 26
27
28
' 29
30 a 3
32
33
34
35
36
37
38
5.2V | OV
ov. | 19V | 1.3V-}
O2v
| OV | O2v | S2V 1 51V | 17V | OV
OV
OV
"|
44
45
| 46
47
48
49
50
51
52
53
54
|
55
56
7
25V | 26V
| 26V | 26V | 25V | 26V | 29V | 48V | 2.9V
=
me
-
{|
-
{| =
|
64
65
| 66
67
68
69
70
Meee
72
13
74
75° | 76
77
OV
ov
| ov | 25v | 20v | Sav | 5.1V
OV
| 52v | 35V
i OV
5AV | 17V | WAV
IC PIN NUMBERS DC VOLTAGES
1C102
(Assi0 | OV.|
OV |
ov | ov
|—i44v)
ov | ov | ov | ov | 139V
ic103__|
LAe393S | 5.9V
|-59V]
16v | OV
|-6.0V]
OV | ov | 5av | 5.9V
1C104_
|uPCAS7OHAT 5.9V | 26V | 26V | 26v
|-60V!]
OV | OV | O.2v | 5.9V
(C105
| .PC4S70HA|
5.9V | OV | OV
|-oV
[-60V|
OV | ov | O5v | 59V
|
(clos.
fTcaosseP{
ov | ov |
ov
[ ov | ov | ov
[-86v[
ov
[iv | trv | ov
[-86v]
86v | -86V)
OV | 8.6 |
|
|
(C0.
|uPc4s7oc|
ov | ov | ov
[-7.3v{
ov | ov _{ ov | 7.3V
i
{
i
IC1i2___
| LA6SIO | OV
OV
ov | OV
[-145v]
ov | ov
ov. | ov | 13.9V
|
|
ICH13
POTaHCUOAC | 5.2V
Sav | siv | ov | ov | 5av{
ov | 23v | 26v | 27V | 22v | 5.2V
i
I
|
CONTROL P.C.BOARD
(BOTTOM VIEW)
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face [ o e e s 1 0 7 "
9
=18—
°
in
D9OS-INTRO | _RANDO
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