Pioneer A-501R/HEWZ Service Manual - Page 14
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A-550R,
A-4SO
4.
PCB's
PARTS
LIST
NOTES:
•
Part without part
number
cannot be
supplied.
•
Parts
marked
by
"
are
not always kept
in stock.
Their
delivery
time
may
be
longer than usual
or
they
may
be
unavailable.
•
The
A
mark
found on some component
parts indicates the
importance of
the
safety
factor
of
the
part.
Therefore
,
when
replacing,
be
sure
to
use parts
of
identical designation.
•
When
ordering
resistors, first
convert
resistance
values
into
codeform
as
shown
in
the
following examples.
Ex.
1
When
there are
2
effective digits
(any
digit
apart
from
0),
such
as
560
ohm
and
47k
ohm
(tolerance
is
shown
by
J
=
5%,
andK
—
10%).
560Q
56X10
1
561
RD1/8PM®
(3 [0
J
47kQ
47
X
10
3
473
RD1/4PS
SHlOli
0.5Q
0R5
RN2H
G2
mm
K
iq
oio
RS/pmmmK
Ex.
2
When
there are
3
effective digits
(such as
in
high
precision
metal film
resistors).
5.
62kQ
562
X
10
1
5621
RN1/4SR
0 ®
ED
ffl
F
Mark
No.
Description
Parts
No.
Mark
No.
Description
Parts
No.
POWER
SW
ASSEMBLY
SEMICONDUCTOR
D956
RELAY
& SWITCH
DIODE
1SS252
A
RY951
RELAY
ASR1036
A
S501
PUSH SWITCH
ASG1035
TORANSFORMER
A
T951
POWER
TRANSFORMER
ATT1015
CAPACITOR
A
C954
CKA
(0.01/AC400V)
ACG1002
RESISTOR
R957
CARBON
FILM
RESISTOR
RD1/2PM270J
OTHERS
CN15
CONNECTOR
(3P)
KPE3
CN16
CONNECTOR
(7P)
KPE7
CN17
CONNECTOR
(4P)
KPE4
CN20
CONNECTOR
(3P)
KPE3
LED
ASSEMBLY
SEMICONDUCTORS
D604, 981
LED
(RED)
AEL1065
SWITCH
S902
SWITCH
ASG1038
<§>
CONTROL ASSEMBLY
(AWZ3496)
SEMICONDUCTOR
IC901
SYSTEM CONTROL
//-COM
PD5165A
IC902—
904
MECHANISM
DRIVER
IC
TA7291S
IC905
REGULATOR
IC
NJM78M56FAS
IC907
IC
PROTECTOR
ICP-N38
Q501
TRANSISTOR
2SC3298
Q5G2
TRANSISTOR
2SA1306
Q901
TRANSISTOR
DTC143ES
Q902-904
TRANSISTOR
DTC124ES
Q907
TRANSISTOR
2SA1048
Q908
TRANSISTOR
2SC2458
Q909
TRANSISTOR
DTC143ES
Q910
—
912
TRANSISTOR
2SC24-58
Q913
TRANSISTOR
DTC124ES
Q914-919
TRANSISTOR
2SC2458
Q920
TRANSISTOR
DTC124ES
Q921, 922
TRANSISTOR
DTC143ES
Q923
TRANSISTOR
2SD1913
D503, 504
ZENER
DIODE
RD18ESB1
D505, 506
DIODE
11E2
D901
—
914
DIODE
1SS252
D915
ZENER
DIODE
RD6.2ESB
D916—918
DIODE
1SS252
D919-926
DIODE
S5566
D927
—
937
DIODE
1SS252
D938-941
DIODE
S5566
D942
DIODE
1SS252
D943
ZENER
DIODE
RD6.2ESB
D944, 949
DIODE
1SS252
COIL
L901
AXIAL
INDUCTOR
LAU220K
21