Service manual

Buffalo BU1715
27
6.2 Power/Inverter Board
ZD903
HZ5C1
R920
47 1/ 2W
D910
F10KQ100
1
3
2
O
O
O
T901
POWER X'FMR
1
9
3
5
6
7,8
7,8
10,11
D901
FR107
t
NR901
NTCR
TO INVERTER
R908
6.8 1/16W
CN102
CONN
1
2
3
4
5
6
7
8
9
10
11
12
R929
0 1/16W
INL
5V
Q903
2SK2996
ZD902
HZ12B2
R917
10 1/4W
R927
1K 1/10W
R905
1M 1/4W
IC902
PC123FY 2 4P
12 43
R924
33K 1/10W
R922
47 1/ 4W
C908
0.1uF
C935
0.01uF
C927
0.1uF
GND
R913
NC
-+
BD901
2KBP06M
1
4
3
2
+
C907
22uF
D902
PS102R
F902
FUSE
C902
2200P/250V
D912
F10KQ60
1
3
2
R907
750k 1/4W
Q901
2PA733P
R901
1M 1/16W
2
INTERNAL POWER FOR PWPC7425A3
B
12Friday , October 29, 2004
<Title>
Size Document Number Rev
Date: Sheet
of
R930
100 1/4W
GND
IC903
HTL431
C911
0.001uF
2.5V
+
C922
1000uF/16V
F901
FUSE
CN901
SOCKET
12
3
R918
10K 1/4W
C909
0.1uF
GND
C920
0.001uF/500V
C936
0.1uF
R919
0.39 2W
L903
C904 0.47uF/250V
R912
100 1/16W
C399
470PF
FB901
BEAD
SG6841
IC901
SG6841
13
4
72
56
8
TO I N VER TER
R904
1M 1/4W
GND
ZD901
RLZ20B
C913
0.0047uF/250V
C910
0.1uF
TO INVERTER
+
C925
1000uF/16V
C912
NC
R909
4.7K 1/16W
L904
+ C905
100uF/400V
FB902
BEAD
C928
0.1uF
R906
750k 1/4W
C921
0.001uF/500V
R916
24K 1/10W
5V
C906
0.0015uF/2KV
R915
10K 1/16W
Q902
2PC945P
L902
L
1 4
2 3
ON/OFF
CN301
PHONEJACK
1
2
3
4
5
12V
R931
1K 1/16W
R903
100K 2W
ZD904
SML4737A/1
R928
1K 1/10W
R911
4.7K 1/16W
+
C924
470uF/16V
R902
1M 1/16W
3.3V
R910
4.7K 1/16W
D903
1N4148
R914
NC
C398
470PF
DIM
R925
3.6K 1/10W
FB903
BEAD
R926
2.4K 1/10W
+
C926
470uF/16V
C901
2200P/250V
CN302
CONN
1
2
3
INR