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Canon NP1550 Service Manual page 126

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D.
DC CONTROLLER
CIRCUIT
DIAGRAM
J
DC
CON TRO
LLER
PCB
(1/5)
BPAO
Q303
BPA1
R324<
I
STAC
>
-
R325
-AW-
BPAP
3
D330
-
STAQ1
BPA3
4
BPA4
BPAS
BPA6
BPA7
R
BPBO
BPB1
BPBP
11
BPB3
1?
BPB4
13
BPB5
14
BPB6
15
BPB7
1fi
BPCO
17
:R354
R385<
'R319
IP.318
BPC1
BPC2
19
:C312
"AAAr
R394
BPC3
Pf)
BPC4
21
BPCS
P?
BPCfi
?3
BPC7
24
R379
-R355
X300
,ZXDP
_26_
_2S_
62
BPDI7
BPDIfi
60
BPniR
59
BPDI4
58
BPDI3
57
BPDI?
56
BPDI1
55
BPniO
54
BPFI7
53
BPFIfi
52
RPFI5
51
BPFI4
50
BPFI3
49
BPFIP
48
BPFI1
47
BPFIO
;R380<R381<R382
ALE
R01
111
B02
9
R03
8
BQ4
7
BOS
R
ROfi
5
B07
4
Boa
3
RPFin
?5
BPFI1
24
BPFI2
21
BPFI3
?3
BPFI4
?
BPFI5
26
BPFIfi
27
,
R377
?0
II
wv
/Rn
2?
1
,0318
/WR
/RD
5V D307
38
TOT-TFST
37
STAC1
36
AIM-BIAS-
CAP
CRRNT-ENBL
y^l-,
24VB
24VB
|CRRNT-CHCK>
"f
yih
R392
C326
R383
-AW-
D315
.
3322
D334
C324
Cd'23
:R309
itD333
D332
03201/
RA309
C325
2
l3
U
15
CA301
BPDIO
BPHI1
BPDI2
BPDI3
BPDI4
BPDIfi
Q316
BPDI5
BPDI6
BPDI7
R378
D327
3329
D335
"R316
<R315
<KJVR]
-
<M-VR|
-
<LGHT|
-
<THl1
Q339
y»~
BPD7
/MR
Q348
'R397
Q342
R321
>W
y-Wy
GND-B
Vy|y;
<AEGIN|
<M
<GRID-VR|
GND-B
VR301
'Q306
KACOFFI
Q333
!
i
,,.BPD6
BPFI1
3
BPFI3
4
BPFI2
7
BPFI7
8
BPFI4
13
BPFI6
14
BPFI5
17
BPFIO
18
/WR
11
/HR
,Q319
-R340
D1
Q1
D2
Q2
D6
Q6
D7
Q7
D8
Q8
>CLK
CLR
2
BPF1
5
BPF3
6
BPF2
9
BPF7
12
BPF4
15
BPFfi
16
BPF5
19
BPFO
24VB
>VR300
COPYRIGHT©
1992
CANON
«C.
CANON
NP-1550REV.il
JAN.1992 PRINTED
IN
JAPAN (IUPRIUEAUJAP0N]
Q317
BPDI1
3 D1
D2
D3
D4
D5
D6
D7
D8
>CLK
CLR
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
V
BPD1
BPDIO
4
5
BPDO
BPDI4
7
R
BPD4
BPDI5
R
9
BPD5
BPDI7
13
1?
BPD7
BPDI6
14
15
BPDfi
BPDI3
17
16
BPD3
BPDI2
18
13
BPD2
/WR
11
/HR -If
A-7

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