Pioneer A-550R/HE User manual

Setvice
cTVlanual
0PIONEER
The Art of Entertainment
ORDER NO.
ARP2512
STEREO AMPLIFIER
A-501R HE, HB, HEWZ
•Refer to the service manual ARP2305 for A-550R/HE.
•This manual is applicable to A-501R/HE, HB and HEWZ.
CONTRAST OF MISCELLANEOUS PARTS
NOTES:
•Part withoutpart number cannot be supplied. venlnrine
•The Amarkfound on some component parts indicates the importance of the safetyfactor of the part.Therefore, wn p&
be sure to use parts ofidentical designation. inhlp
•Parts marked by “® nare not always kept in stock. Their delivery time may be longer than usual or they may be unavauaoie.
A-501R/HE, A-501R/HB, A-501R/HEWZ and A-550R/HE have the same construction except for the
following:
9’
Part No. Remarks
Mark Symbol &Description A-550R/HE A-501R/HE A-501R/HB A-501R/HEWZ
A
kAC Power cord
AC Socket 3P
Carbon film resistor {R1, 2)
Rotary knob L
Rotary knob M
ADG1049
AKP-502
'AAB1160
AAB1231
ADG1049
AKP-502
AAB1290
AAB1281
ADG1087
AKP-505
AAB1290
AAB1281
ADG1049
AKP-502
RD1/4PFM1O0J
AAB1290
AAB1281
Front panel
Cushion (Rubber)
Screw
Packing case
Operating instructions
(English, French, German,
Italian, Dutch, Swedish,
Spanish, Portugues)
ANB1462
AEB1074
BBT30P080FZK
AHD2130
ARE1201
ANB1525
BBZ30P080FZK
AHD2312
ARE1245
ANB1525
BBZ30P080FZK
AHD2312
ANB1525
BBZ30P080FZK
AHD2312
Operating instructions
(English)
Operating instructions
(German)
ARB1385
ARC1368
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.0. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 300 Allstate Parkway Markham, Ontario L3R 0P2 Canada
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Meisele, Belgium qql1
PIONEER ELECTRONICS AUSTRALIA PTY, LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL. [03] bou
©PIONEER ELECTRONIC CORPORATION 1992 FF apr. 1992 Printed in Japan

IflD PIONEER'
The Art of Entertainment
Service
c7Manual ;tmcx
*° 0Oaach
TzZT
The above illustration shows the model A-550R.
STERO AMPLIFIER
A-550R
** £3 ^3§3
A-45QR
ORDER NO.
ARP2305
A-550R, A-550R -SAND A-450R HAVE THE FOLLOWING :
Type Model
Power Requirement Remarks
A-550R A-550R-S A-450R
HE O—OAC220V —230V, 240V (Switchable)*
HEWZ OOOAC220V -230V, 240V (Switchable)*
*Change the connection of the power transformer's primary wiring.
’t
T
ypes
manUal 'SaPPKCable t0 the A"550R/HE'HEWZ'A-550R -S/HEWZ, A-450R/HE and HEWZ
•The A-550R-S is the same as the A-550R except for color.
•Ce manuel pour le service comprend les explications de rSglage en fran9ais.
Este manual de servicio trata del mStodo ajuste escrito en espahol.
CONTENTS
1. EXPLODED VIEWS, PACKING AND
PARTS LIST
2. SCHEMATIC DIAGRAM
3. P.C. BOARDS CONNECTION DIAGRAM
4. PCB's PARTS LIST
5. ADJUSTMENT
5. REGLAGE
5. AJUSTE
6. PANEL FACILITIES
7. SPECIFICATIONS
28
29
30
31
33
™?P9?AT,0N 4'1, Me9uro 1Ch°me Meguro-ku, Tokyo 153, Japan ~
diomccd SI ^™CE INC‘R0-Box 1760'Lon9Beach, California 90801 U.S.A.
PIONEER ELECTRONIC [EUROPE L3R 8E3 CM
^^|E onel
ertelectr<^ic
l'co^p
l
o11at?on reST RoM Brae*te Vi “,ia 3,95 Aus“' TEL: 1031 58°-9m
DX JULY 1991 Printed in

A-550R, A-450R
1.EXPLODED VIEWS, PACKING AND PARTS LIST
NOTES:
•The parts with an encircled number are generally unavailable because they are not in our Master Spare Parts List.
•The Amark found on some component parts indicates the importance of the safety factor ofthe part. Therefore,when replacing,
be sure to use parts ofidentical designation.
•Parts marked by “<§> ”are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
1,1PARTS LIST OF A- 550R AND A-550R -STYPES
Mark No. Description Parts No. Mark No. Description Parts No.
1ROTARY KNOB S(BASS, AAB1155 26 CUSHION (RUBBER) AEB1074
TREBLE) 27 CUSHION C(RUBBER) AEB-270
1ROTARY KNOB S(BASS, AAB1238 28 NYLON BINDER AEC-093
TREBLE) (A-550R-S type) 29 RIVET AEC-441
2ROTARY KNOB L(VOLUME AAB1160 30 STRAIN RELIEF AEC-882
CONTROL)
2ROTARY KNOB L(VOLUME AAB1161 31
CONTROL) (A -550R-S type) 32 LED ASSEMBLY AWZ3495
3ROTARY KNOB R(PLS) AAB1162 <§) 33 CONTROL ASSEMBLY AWZ3496
3ROTARY KNOB R(A-550R-S AAB1163 34 ROTARY FUNC. ASSEMBLY AWZ3497
•type) 35 DRY CELL BATTERY AEX-021
4ROTARY KNOB MAAB1231 (R03, AAA)
(REC/INPUT SELECTOR)
4ROTARY KNOB MAAB1236 36 STYROL PROTECTOR AHA1335
(REC/INPUT SELECTOR) 37 PACKING CASE AHD2130
(A-550R-S type) 37 PACKING CASE (A-550R-S AHD2131
5PUSH KNOB (STANDBY) AAD1246 type)
5PUSH KNOB (STANDBY) AAD2033 38 EYE ASSEMBLY AWZ3498
(A-550R-S type) 39 PACKING SHEET AHG1016
40 TERMINAL SCREW AKE-031
6PUSH KNOB C(SPEAKERS, AAD1366
DIRECT, PHONO SELECTOR) 41 PLUG AKM1004
6PUSH KNOB C(SPEAKERS, AAD1367 A42 AC SOCKET 3-P AKP-502
DIRECT, PHONO SELECTOR) 43 PANEL BASE AMB1651
(A-550R-S type) 43 PANEL BASE(A-550R-Stype) AMB1652
7PUSH KNOB (SUBSONIC, AAD1536 44 INDICATING LENS AMR1160
LOUDNESS) 45 INSULATOR ASSY AMR2140
7PUSH KNOB (SUBSONIC, AAD1538
LOUDNESS) (A-550R-S type) 46 ARM AMR2142
8POWER KNOB AAD1984 47 MICA SHEET AMR2295
8POWER KNOB (A-550R-S AAD2040 48 CHASSIS ANA1065
type) 49 FRONT PANEL ANB1462
9TACT KNOB (MUTING) AAD2003 49 FRONT PANEL (A-550R-S ANB1477
9TACT KNOB (MUTING) AAD2032 type)
(A-550R-S type) 50 REAR PANEL ANC1712
10 SENSOR WINDOW AAK1783 51 SHIELD ASSEMBLY AWZ2860
11 POWER SW ASSEMBLY AWZ3493 52 BOTTOM PLATE ANF1085
12 NAME PLATE (METAL) AAM1029 53 PCB HOLDER ANG1198
13 SCREW ABA-298 54 HEAT SINK HOLDER ANG1340
14 SCREW (STEEL) ABA1009 55 PCB HOLDER ANG1580
15 SCREW (STEEL) ABA1011 56 HEAT SINK ANH1259
16 SCREW (STEEL) ABA1016 57 SUB HEAT SINK ANH1325
17 SCREW (STEEL) ABA1047 58 ROD ANR-879
18 SCREW (STEEL) ABA1048 59 OPERATING INSTRUCTIONS ARE1201
19 SCREW (STEEL) ABA1050 (English, French, German,
20 SCREW ABA1082 Italian, Dutch, Swedish, Spanish,
Portugues) (HE type)
21 BUSH ABF1018 59 OPERATING INSTRUCTIONS ARC1278
22 SPRING ABH-052 (German) (HEWZ type)
23 SPRING ABH1034 60 HEADPHONE ASSEMBLY AWZ3484
24 NUT ABN-065
25 AC POWER CORD ADG1049 961 AF COMPLEX ASSEMBLY AWZ3487
962 TONE ASSEMBLY AWZ3491
s

Mark No. Description Parts No.
63 REMOTE CONTROL UNIT AXD1211
(CU-A001)
64 BONNET CASE AZN1799
64 BONNET CASE (A-550R-S AZN1800
type)
65 SCREW BBT30P060FZK
65 SCREW (A- 550R-S type) ABA-274
66 SCREW BBT30P080FZK
67 NUTS NK90FZB
68 BATTERY COVER PZN1001
69 SCREW VMZ30P060FCU
A70 POLYESTER CAPACITOR (Cl) CQMXA104J100
A71 FUSE (T2.5A, FU1) AEK-512
A72 TRANSISTOR (Ql) 2SC3281
A73 TRANSISTOR (Q2) 2SC3281
A74 TRANSISTOR (Q3) 2SA1302
A75 TRANSISTOR (Q4) 2SA1302
A76 TRANSISTOR (Q5) 2SC4137
A77 TRANSISTOR (Q6) 2SC4137
A78 CARBON FILM RESISTOR (R3) RD1/4PM010J
79 SWITCH (S2) ASU1036
A80 POWER TRANSFORMER (Tl) ATS1368
81 FUSE ASSEMBLY AWZ3516
A82 CARBON FILM RESISTOR (Rl, RD1/4PMF100J
HEWZ type only)
A83 CARBON FILM RESISTOR (R2, RD1/4PMF100J
HEWZ type only)
84 BINDER AEF10Q4
85 VINYL BAG AHG-117
1.2 PARTS LIST OF A-450R TYPE
Mark
A
<§>
A
No. Description Parts No.
1ROTARY KNOB S(BASS, AAB1155
2TREBLE)
ROTARY KNOB L(VOLUME AAB1160
3
CONTROL)
ROTARY KNOB R(PLS) AAB1162
4ROTARY KNOB MAAB1237
5(REC/INPUT SELECTOR)
PUSH KNOB (STANDBY) AAD1246
6PUSH KNOB C(SPEAKERS, AAD1366
7
DIRECT, PHONO SELECTOR)
PUSH KNOB (SUBSONIC, AAD1536
8LOUDNESS)
POWER KNOB AAD1984
9TACT KNOB (MUTING) AAD2003
10 SENSOR WINDOW AAK1783
11 POWER SW ASSEMBLY AWZ3493
12 NAME PLATE (METAL) AAM1029
13 SCREW ABA-298
14 SCREW (STEEL) ABA1009
15 SCREW (STEEL) ABA1011
16 SCREW (STEEL) ABA1016
17 SCREW (HE type only) ABA1047
18 SCREW (STEEL) ABA1048
19 SCREW (STEEL) ABA1050
20 SCREW ABA1082
21
22 SPRING ABH-052
23 SPRING ABH1034
24 NUT ABN-065
25 AC POWER CORD ADG1049
26 CUSHION (RUBBER) AEB1074
27 CUSHION C(RUBBER) AEB-270
28 NYLON BINDER AEC-093
29 RIVET AEC-441
30 STRAIN RELIEF AEC-882
31
32 LED ASSEMBLY AWZ3495
33 CONTROL ASSEMBLY AWZ3496
34 ROTARY FUNC. ASSEMBLY AWZ3497
35 DRY CELL BATTERY AEX-021
36
(R03, AAA)
STYROL PROTECTOR AHA1335
37 PACKING CASE AHD2132
38 EYE ASSEMBLY AWZ3498
39 PACKING SHEET AHG1016
40 TERMINAL SCREW AKE-031
41 PLUG AKM1004
42 AC SOCKET 3- PAKP-502
43 PANEL BASE AMB1651
44 INDICATING LENS AMR1160
45 INSULATOR ASSY AMR2140
46
47 MICA SHEET
48 CHASSIS AEE1014
ANA1065
3
Mark No. Description Parts No,
49 FRONT PANEL ANB1463
50 REAR PANEL ANC1712
1.3 PACKING
51 SHIELD ASSEMBLY AWZ2860
52 BOTTOM PLATE ANF1085
53 PCB HOLDER ANG1198
54 HEAT SINK HOLDER ANG1340
55 PCB HOLDER ANG1580
56
57 HEAT SINK ANH1333
58 ROD ANR-879
59 OPERATING INSTRUCTIONS
(English, French, German,
Italian, Dutch, Swedish, Spanish,
Portugues) (HE type)
ARE1201
59 OPERATING INSTRUCTIONS
(German) (HEWZ type)
ARC1278
60 HEADPHONE ASSEMBLY AWZ3484 59
<D
A
A
A
A
A
A
A
A
A
A
A
A
A
61 AF COMPLEX ASSEMBLY AWZ3489
62 TONE ASSEMBLY AWZ3492
63 REMOTE CONTROL UNIT
(CU-A001) AXD1211
64 BONNET CASE AZN1799
65 SCREW BBT30P060FZK
66 SCREW BBT30P080FZK
67 NUTS NK90FZB
68 BATTERY COVER PZN1001
69 SCREW VMZ30P060FCU
70 POLYESTER CAPACITOR
(Cl) (HE type) CQMXA473J100
70 POLYESTER CAPACITOR
(Cl) (HEWZ type) CQMXA104J100
71 FUSE (T2.5A, FU1) AEK-512
72 TRANSISTOR (Ql) 2SC3281N
73 TRANSISTOR (Q2) 2SC3281N
74 TRANSISTOR (Q3) 2SA1264N
75 TRANSISTOR (Q4) 2SA1264N
76 TRANSISTOR (Q5) 2SC4137
77 TRANSISTOR (Q6) 2SC4137
78 CARBON FILM RESISTOR (R3) RD1/4PM010J
79 SWITCH (S2) ASU1036
80 POWER TRANSFORMER (Tl) ATS1367
81 FUSE ASSEMBLY AWZ3516
82 CARBON FILM RESISTOR (Rl, RD1/4PMF100J
HEWZ type only)
83 CARBON FILM RESISTOR (R2, RD1/4PMF100J
HEWZ type only) .
;
84 BINDER AEF1004 j
85 VINYL BAG AHG-117

A-550R, A-450R
2. SCHEMATIC DIAGRAM
III67
A
B
C
D
1
~7
1
i
2ii4i5ii

J7I8I9II1
1
I12 1
A
1. RESISTORS:
Indicated in Si, ViW, '/eW, t5% tolerance unless otherwise noted k:kU,
M:MO. IF) :tl%, |G) :*2%. |K) :110% |M); ±20%tolerance
2. CAPACITORS:
Indicated in capacity (pFl/voltage (V) unless otherwise noted p:pF
Indication without voltage is 50V except electrolytic capacitor.
3. VOLTAGE, CURRENT:
||:Signal voltage at (W+W8u)output (1kHz)
^|:DC voltage IV) at no input signal
Value in ()is DC voltage at rated power.
mA :DC current at no input signal
4. OTHERS: B
Signal route.
©:Adjusting point.
The ^mark found on some component parts indicates the im-
portance of the safely factor of the part. Therefore, when replacing,
be sure to use parts of identical designation.
marked capacitors and resistors have parts numbers,
This is the basic schematic diagram, but the actual circuit may vary
due to improvements in design.
SWITCHES
POWER SW assembly
S501 POWER
ROTARY FUNC. assembly
S901 ROTARY SW
LED assembly
S902 STANDBY
AF COMPLEX assembly
S101 PHONO SEL MM/MC
(A-550R ONLY) c
S701 FUNCTION REC SEL
S702 FUNCTION
S703 DIRECT SW ON/OFF'
TONE assembly
S601 SUB SONIC ON/OFF
(A-550R ONLY)
S602 LOUDNESS
S604 MUT.K
HEADPHONE assembly
S801-1 SP-A ON/OFF
S801-2 SP-B ON/OFF
LINE VOLTAGE SELECTION
Line voltage can be changed with the following steps.
1. Disconnect the AC Power cord.
2. Remove the top cover.
3. Change the connection of the power transformer primary
pins.
Voltage Power transformer Pin No.
220V 3
240V 5
4.
Stick the line voltage label on the rear panel.
Part No. Description
I8II10 I1
1
I12
i
AAX-193
AAX-192 220V label
240V label
f

;o-cnoD-n:EX>T>
AAC SOCKET [~

A-550R, A-450R
Parts with asterisk ()* differs according to models
as follows ;
AF COMPLEX ASSEMBLY
A-550R and
A-550R-S A-450R
Parts No. AWZ3487 AWZ3489
IC101 0PC457OC M5220P
Q101 -Q104
Q105. Q106 2SK369
2SC2458 VACANT
VACANT
D101, D102
0103
0217-0220
0307
RD7.5ESB2
1SS252
RD 15ESB
RD22ESB
VACANT
VACANT
RD8.2ES81
R015ESB
S101 ASG1012 VACANT
RY301, RY302 ASR 1037 ASR1038
1101. LI 02
L103-L106
1107, LI 08
ATH 1010
VACANT
LAU3R3K
VACANT
LAU221K
VACANT
C101, Cl 02
Cl 03, Cl 04
Cl 05, Cl 06
C107, Cl 08
C113. Cl 14
CFTXA103J50
CCCSL271J60
CKCYB472K50
CEXA101M25
CEANP220M10
VACANT
CCCSL330J50
VACANT
CEAS101M10
CEAS4R7M50
Cl 17, Cl 18
Cl 23, C124
Cl 25, Cl 26
C127. Cl 28
C135, Cl 36
CEXA221M25
VACANT
VACANT
CCCSL101 J60
CEAS470M 10
CEAS221M25
CEAS100M50
CCCSL101J60
CCDSL221 J50
VACANT
C137, Cl 38
Cl 39, Cl 40
Cl 39, Cl 40
C244
C506
CCCSL151J50
CCCSL330J50
CCCSL330J50
CKOYX 104M25
ACH1078
VACANT
CCDSL330J50
CCDSL330J50
CQMA224X50
ACH1 190
C507
C725
C726
CQMA103K250
CCDSL221J50
CKCYF103Z50
VACANT
CCCSL221 J50
VACANT
A—550R and
A-560R-S A-4B0R
Parts No. AWZ3487 AWZ3489
R101,R102 RDR1/6PU101
J
VACANT
R105, R106 RD1/8PM472J RD1/8PM332J
R107, R108 RDR1/6PU563J RD1/8PM564J
R109-R1 12 RD1/8PM222J VACANT
R113, B11
4
RD 1/8PM33 1
J
VACANT
R115, R1 1
6
RD1/8PM153J VACANT
R117, R11
8
VACANT RD1/8PM106J
R119, R120 RDR1/4PM6R8J VACANT
R1 23, R124 RD 1/8PM820J VACANT
R127, R128 VACANT RD1/8PM1 52J
R131, R132 RD1/8PM390J RD1/8PM560J
R133, R134 RDR1/6PU391
J
R0R1/6PU471J
R135, R136 RD1/8PM331J VACANT
R139, R140 RD 1/8PM82 1
J
VACANT
R141, R142 VACANT RDR1/6PU563J
R151.R152 1 RD 1/8PM474J VACANT
R153, R154 RD1/8PM563J VACANT
R155, R156 RD 1/8PM335J VACANT
R21 5, R216 RDR1/4PM821J RDR1/4PM102J
R223-R226,
R229-R232 RD1/4PM392J RD1/4PM332J
R235. R236,
R253, R254 RD1/8PM152J RD1/8PM122J
R287, R288 RD 1/4PMF4R7J RFA1/4PS4R7J
R293, R294 RD1/8PM681J RD1/8PM821J
R310 RD1/8PM473J RD1/8PM823J
R31 2. R317,
R321 RD1/4PM221J RD1/4PM1 81J
R329 RD1/8PM223J RD 1/8PM273J
R733 RD1/8PM105J VACANT
R734 RD1/8PM475J VACANT
TONE ASSEMBLY
A-550R and
A-550R-S A-4B0R
Parts No. AWZ3491 AWZ3492
Q601, Q602 2SK246 VACANT
D601
D605. D606 AEL1065
1SS252 VACANT
VACANT
5601 ASG1019 VACANT
C603, C604
C635, C636
C643
C647, C648
CFTXA823J50
CCDSL1 50J50
CKCYF103Z50
CCCSL820J50
VACANT
VACANT
VACANT
CCDSL390J50
R601. R602
R603, R604
R647, R648
RD1/8PM124J
RD1/8PM822J
RD1/8PM105J
RD1/8PM224J
VACANT
VACANT
HEADPHONE ASSEMBLY
A-550R and
A—550R-S A-450R
Parts No. Non supply Non supply
R803 RS1LMF681J RS1LMF561
J
11

A-SSOR, A-450R
3. P.C. BOARDS CONNECTION DIAGRAM
NOTE
1. This P.C.B connection diagram is viewed from the parts mounted side.
2. The parts which have been mounted on the board can be replaced with those shown
with the corresponding wiring symbols listed in the following Table.
P.C.B. pattern diagram indication Corresponding part symbol Part Name
/Q504 n
EO O O Pil-p£n
e6 q'5
Transistor
Q21 5—
OOORadiator type
transistor
®-°203 oD203
OMoDiode
oR237 oR237
oWV oResistor
/C513 \
\J
Capacitor
(Polarity)
4Jo—||—o
j
Capacitor
(Non-polarity)
Others
P.C.B. pattern diagram indication Part Name
1C 1C
SSwitch
RY Relay
LCoil
FFilter
VR Variable resistor or
Semi-fixed resistor
3. The capactor terminal marked with ©(double circles) shows negatine termianl.
4. The diode terminal marked with ©(double circles) shows cathode side.
5. The transistor terminal to which Eis affixed shows the emitter.
12

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E0 00-<§) C255 b
4r»'H24S —taar%DMfci
2O® <
0233
0234
0205
0206
0212
I45 .1to>*
Ii- 37.0)5 I
tymcii ii
A- 550Ri Ti
J3NLY Ll
515.
(Ic
.A.N..PJ !fi
A-450R
A-550R
ONLY(Jumper)
901 0909 0907 0908 IC905 0502 0501 Q920
Q92I 0922 0913-0919
3^ 230V
EYE assembly
Q22I 0222
0307
0229 0230
0306
Q225 0226
0227 0228
CPOWER CORD
,C 220-230
50/60HZ
AF COMPLEX assembly
(AWZ3487 :A-550R)
(AWZ3489 :A-450R) A
05 Q<
03 0
o;
Q304
Q303
0237
0238
Q23I Q232
Q2I9 0220
Q2I8
0208
0207
0293 0294
Q29 10292
0203 Q204
Q103
0101
0,03
HEWZfJ,
ONLY!£;
POWER TRANSFORMER SHIELD assembly
rHHEWZ only
QI06
0,04
0102
450R

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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 Amarkfound on some component parts indicates the importance ofthe safetyfactor ofthe part. Therefore,when replacing,
be sure to use parts ofidentical designation.
•When ordering resistors, first convert resistance values into codeform as shown in thefollowing examples.
Ex. 1When there are 2effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
andK —10%).
560Q 56X101561 RD1/8PM® (3 [0 J
47kQ 47 X103473 RD1/4PS SHlOli
0.5Q 0R5 RN2HG2 mm K
iq oio RS/pmmmK
Ex. 2When there are 3effective digits (such as in high precision metalfilm resistors).
5. 62kQ 562 X10 15621 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
ARY951 RELAY ASR1036
AS501 PUSH SWITCH ASG1035
TORANSFORMER
AT951 POWER
TRANSFORMER ATT1015
CAPACITOR
AC954 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

-550R. A-450R
Mark No. Description Parts No.
CAPACITORS
C501, 502 ELECTR.CAPACITOR CEAS100M50
C503, 504 ELECTR.CAPACITOR CEAS470M50
C508 ELECTR.CAPACITOR CEAS470M50
C509 ELECTR.CAPACITOR CEAS220M50
C901 ELECTR.CAPACITOR CEAS470M16
C902 CERAMIC CAPACITOR CKCYF103Z50
C903 ELECTR.CAPACITOR CEAS470M16
C904 CEA (47000/5. 5V) ACH1037
C905 ELECTR.CAPACITOR CEAS2R2M50
C906—920 CERAMIC CAPACITOR CKMYB271K50
C921 ELECTR.CAPACITOR CEAS100M50
C922 ELECTR.CAPACITOR CEAS101M25
C923-925 ELECTR.CAPACITOR CEAS470M25
C926 ELECTROLYTIC CEAS471M25
C927 CAPACIT
ELECTR.CAPACITOR CEAS470M10
C928 ELECTROLYTIC CEAS471M25
C929 CAPACIT ELECTR.CAPACITOR CEAS0R1M50
C930 CERAMIC CAPACITOR CCCSL101J50
C931 ELECTR.CAPACITORCEANP4R7M35
C932, 933 CERAMIC CAPACITOR CCCSL101J50
C934 ELECTR.CAPACITOR CEAS4R7M50
C935 ELECTR.CAPACITOR CEAS470M25
C936 ELECTR.CAPACITOR CEAS100M50
RESISTORS
R501, 502 METAL OXIDE RS1PMF121J
R503, 504 RESISTOR
METAL OXIDE RS1LMF121J
R505; 506 RESISTOR
METAL OXIDE RS1PMF121J
AR507, 508 RESISTOR
CARBON FILM RD1/4PMF010J
AR509, 510 RESISTOR
METAL OXIDE RS1LMF562J
R517-520
RESISTOR
METAL OXIDE RS1PMF101J
R909 RESISTOR
RESISTOR ARRAY RA6T104J
R910 (100K)
RESISTOR ARRAY RA4T104J
R911 (10K)
RESISTOR ARRAY RA6T104J
AR923 (100K)
FUSIBLE RESISTOR RFA1/4PS4R7J
R924 CARBON FILM RD1/4PM102J
R935 RESISTOR
CARBON FILM RD1/4PM222J
R960 RESISTOR
CARBON FILM RD1/4PM472J
RESISTOR
Other resistors RD1/4PMDDDJ
OTHERS
JACK AKN1006
Mark No. Description Parts No.
ROTARY FUNC. ASSEMBLY
SWITCH
S901 SWITCH ASD1016
CAPACITOR
C981 CERAMIC CAPACITOR CKDYF103Z50
RESISTORS
All resistors RD1/8PMD1ZO
OTHERS
X901 CERAMIC RESONATOR ASS1018
CN14 CONNECTOR (15P) KPE15
EYE ASSEMBLY
OTHERS
REMOTE RECEIVER AXX1010
UNIT
SHIELD ASSEMBLY
No parts ake supplied with the SHIELD assembly.
HEAD PHONE ASSEMBLY
SWICH
S801
CAPACITORS
C801, 802
RESISTORS
AR801, 802
AR803
OTHERS
CN6
PUSI* SWITCH
METAL OXIDE
RESISTOR
METAL OXIDE
RESISTOR
JACK
CONNECTOR (3P)
SUL5L2B2S
CKCYB392K50
RS1PMF331J
RS1LMF681J
AKN1002
KPE3
CERAMIC CAPACITOR
®AF COMPLEX ASSEMBLY (AWZ3487)
(FOR A-550R AND A-550R -S)
SEMICONDUCTORS
IC101 IC UPC4570C
Q101-104 N-FET 2SK369
Q105, 106 TRANSISTOR 2SC2458
Q203-208 TRANSISTOR 2SA1048
22

Mark No. Description Parts No.
Q211, 212 TRANSISTOR 2SC1845
Q215-218 TRANSISTOR 2SA1048
Q219, 220 TRANSISTOR 2SC2705
Q221, 222 TRANSISTOR 2SC3298
Q223, 224 TRANSISTOR 2SA1306
Q225, 226 TRANSISTOR 2SC2603
Q227, 228 TRANSISTOR 2SC1845
Q229, 230 TRANSISTOR 2SA992
Q231, 232 TRANSISTOR 2SA1145
Q233, 234 TRANSISTOR 2SA992
Q237 TRANSISTOR 2SC1845
Q238 TRANSISTOR 2SA992
Q291-294 TRANSISTOR 2SA992
Q301, 302 TRANSISTOR 2SC1845
Q303, 304 TRANSISTOR 2SC2458
Q305 TRANSISTOR 2SA1048
Q306 TRANSISTOR 2SC1815
Q307 TRANSISTOR 2SC2458
D101, 102 ZENER DIODE RD7.5ESB2
D103 DIODE 1SS252
D201, 202 ZENER DIODE RD2.7ESB1
D209-216 DIODE 1SS252
D217-220 ZENER DIODE RD15ESB
D301-306 DIODE 1SS252
D307 ZENER DIODE RD22ESB
D507 DIODE D5SB20F
RELAIES &SWITCHES
RY301, 302 RELAY ASR1037
RY303 RELAY ASR1038
SlOl PUSH SWITCH ASG1012
S701 SWITCH ASD1017
S702 SWITCH ASU1002
S703 PUSH SWITCH SULL6S
COILS
L101, 102 COIL ATH1010
L107, 108 AXIAL INDUCTOR LAU3R3K
L401, 402 COIL ATH1009
CAPACITORS
C101, 102 AUDIO FILM
CAPACITOR CFTXA103J50
C103, 104 CERAMIC CAPACITOR CCCSL271J50
C105, 106 CERAMIC CAPACITOR CKCYB472K50
007, 108 ELECTROLYTIC
CAPACIT CEXA101M25
C109, 110 AUDIO FILM
CAPACITOR CFTXA683J50
Clll, 112 AUDIO FILM
CAPACITOR CFTXA183J50
Cl13, 114 ELECTR.CAPACITOR CEANP220M10
Mark No. Description Parts No.
C115, 116 MYLOR FILM CQMA392K50
CAPACITOR
C117, 118 ELECTROLYTIC CEXA221M25
CAPACIT
C119, 120 CERAMIC CAPACITOR CKCYF103Z50
C121, 122 MYLOR FILM CQMA122J50
CAPACITOR
C127, 128 CERAMIC CAPACITOR CCCSL101J50
C129 CERAMIC CAPACITOR CKPYX103N25
C135, 136 ELECTR.CAPACITOR CEAS470M10
C137, 138 CERAMIC CAPACITOR CCCSL151J50
C139, 140 CERAMIC CAPACITOR CCCSL330J50
C141 CERAMIC CAPACITOR CKCYF103Z50
C201, 202 ELECTROLYTIC CEEA2R2M50
CAPACIT
C203.204 CERAMIC CAPACITOR CCCSL101K500
C205, 206 CERAMIC CAPACITOR CCCSL101J50
C207, 208 CERAMIC CAPACITOR CCCSL470J50
C209, 210 CERAMIC CAPACITOR CCCSL181J50
C211, 212 ELECTROLYTIC CEEA221M16
CAPACIT
C213-216 CERAMIC CAPACITOR CCCSL120K500
C217, 218 ELECTR.CAPACITOR CEAS101M10
C219-222 ELECTR.CAPACITOR CEAS3R3M100
C225, 226 ELECTR.CAPACITOR CEAS331M10
C227-230 CERAMIC CAPACITOR CCCSL330K500
C231, 232 CERAMIC CAPACITOR CKCYB122K50
C233-236 ELECTR.CAPACITOR CEAS100M50
C237, 238 ELECTR.CAPACITOR CEAS101M50
C239-242 POLYESTER CQMXA472J100
CAPACITOR
C244 CERAMIC CAPACITOR CKDYX104M25
C245, 246 CERAMIC CAPACITOR CKCYB331K50
C247. 248 AUDIO FILM CFTXA103J50
CAPACITOR
C251-254 CERAMIC CAPACITOR CCCSL680K500
C255 CERAMIC CAPACITOR CCCSL680J50
C256 CERAMIC CAPACITOR CCDSL470J50
C301.302 ELECTR.CAPACITOR CEANP2R2M50
C303 ELECTROLYTIC CEAS471M6
CAPACIT
C304 CERAMIC CAPACITOR CKCYF103Z50
C305 ELECTR.CAPACITOR CEAS101M25
C306-308 ELECTR.CAPACITOR CEASR47M50
C401-404 AUDIO FILM CFTXA104J50
CAPACITOR
C505 ELECTROLYTIC "ACH1196
CAPACIT
C506 ELECTROLYTIC ACH1078
CAPACIT
C507 MYLOR FILM CQMA103K250
CAPACITOR
C703-708 CERAMIC CAPACITOR CCCSL271J50
C711, 712 CERAMIC CAPACITOR CCCSL271J50
C715, 716 CERAMIC CAPACITOR CCCSL271J50
C719, 720 CERAMIC CAPACITOR CCCSL271J50
23

A-550R. A-450R
Mark No. Description Parts No.
C725 CERAMIC CAPACITOR CCDSL221J50
C726 CERAMIC CAPACITOR CKCYF103Z50
C727, 728 CERAMIC CAPACITOR CCCSL221J50
C731 CERAMIC CAPACITOR ‘CKCYF103Z50
C851, 852
RESISTORS
CERAMIC CAPACITOR CKDYF103Z50
VR201, 202 YR ACP1045
VR701 VARIABLE RESISTOR ACX1060
R101, 102 CARBON FILM
RESISTOR RDR1/6PU101J
R107, 108 CARBON FILM
RESISTOR RDR1/6PU563J
R119, 120 CARBON FILM
RESISTOR RDR1/4PM6R8J
R121, 122 CARBON FILM
RESISTOR RDR1/4PM820J
R133, 134 CARBON FILM
RESISTOR RDR1/6PU391J
R143, 144 CARBON FILM
RESISTOR RD1/4PM560J
R201}202 CARBON FILM
RESISTOR RDR1/4PM221J
R203, 204 CARBON FILM
RESISTOR RDR1/4PM104J
R205, 206 CARBON FILM
RESISTER RD1/4PM152J
R207, 208 CARBON FILM
RESISTOR RD1/4PM103J
R209, 210 CARBON FILM
RESISTOR RD1/4PM561J
R211, 212 CARBON FILM
RESISTOR RD1/4PM562J
R213, 214 CARBON FILM
RESISTOR RD1/4PM562J
R215, 216 CARBON FILM
RESISTOR RDR1/4PM821J
R217, 218 CARBON FILM
RESISTOR RDR1/4PM124J
R219, 220 CARBON FILM
RESISTOR RD1/4PM473J
R221, 222 CARBON FILM
RESISTOR RD1/4PM101J
R223-226 CARBON FILM
RESISTOR RD1/4PM392J
R227, 228 CARBON FILM
RESISTOR RD1/4PM561J
R229-232 CARBON FILM
RESISTOR RD1/4PM392J
R233, 234 CARBON FILM
RESISTOR RD1/4PM101J
R237, 238 CARBON FILM
RESISTOR RDR1/4PM224J
AR239-242 FUSIBLE RESISTOR RFA1/4PS101J
AR243, 244 CARBON FILM
RESISTOR RD1/4PMF561J
AR245-248 FUSIBLE RESISTOR RFA1/4PS101J
R249, 250 CARBON FILM
RESISTOR RD1/4PM122J
Mark No. Description Parts No.
R251, 252 CARBON FILM
RESISTOR RD1/4PM103J
R255, 256 CARBON FILM
RESISTOR RD1/4PM561J
AR257-260 FUSIBLE RESISTOR RFA1/4PS101J
AR261-264 FUSIBLE RESISTOR RFA1/4PS470J
AR265—268 FUSIBLE RESISTOR RFA1/4PS4R7J
AR269, 270 RESISTOR (0.33, 5W) ACN1063
R275, 276 CARBON FILM
RESISTOR RD1/4PM472J
R277, 278 CARBON FILM
RESISTOR RD1/4PM222J
AR281-284 FUSIBLE RESISTOR RFA1/4PS331J
AR285, 286 FUSIBLE RESISTOR RFA1/4PS101J
AR287, 288 CARBON FILM
RESISTOR RD1/4PMF4R7J
AR289, 290 FUSIBLE RESISTOR RFA1/4PS101J
AR301, 302 CARBON FILM
RESISTOR RD1/4PMF222J
AR308 CARBON FILM
RESISTOR RD1/4PMF101J
R311 CARBON FILM
RESISTOR RD1/4PM101J
R312 CARBON FILM
RESISTOR RD1/4PM221J
R313-315 CARBON FILM
RESISTOR RD1/4PM181J
R317 CARBON FILM
RESISTOR RD1/4PM221J
R318 —320 CARBON FILM
RESISTOR RD1/4PM181J
R321 CARBON FILM
RESISTOR RD1/4PM221J
R322-324 CARBON FILM
RESISTOR RD1/4PM181J
R325-327 CARBON FILM
RESISTOR RD1/4PM221J
AR330 CARBON FILM
RESISTOR RD1/4PMF010J
AR401, 402 CARBON FILM
RESISTOR RD1/4PMFL101J
AR403, 404 METAL OXIDE
RESISTOR RS1LMF331J
AR407, 408 CARBON FILM
RESISTOR RD1/4PMFL100J
R731, 732 CARBON FILM
RESISTOR RD1/4PM103J
Other resistors RD1/8PMDDDJ
OTHERS
PIN JACK (4P) AKB1007
PIN JACK (6P) AKB1008
PIN JACK (6P) AKB1024
SPEAKER TERMINAL AKE1011
8~P
24

A-550R. A-450R
Mark No. Description Parts No. Mark No. Description Parts No.
CN10 CONNECTOR (4P) KPE4 C113, 114 ELECTR.CAPACITOR CEAS4R7M50
CN12 CONNECTOR (4P) KPE4
CN13 CONNECTOR (10P) KPE10 C115, 116 MYLOR FILM CQMA392K50
CN19 CONNECTOR (6P) KPE6 CAPACITOR
CN4 CONNECTOR (15P) KPE15 C117, 118 ELECTR.CAPACITOR CEAS221M25
CN8 CONNECTOR (7P) KPE7 C119, 120 CERAMIC CAPACITOR CKCYF103Z50
CN9 JUMPER CONNECTOR KPC8 C121, 122 MYLOR FILM CQMA122J50
CAPACITOR
C123, 124 ELECTR.CAPACITOR CEAS100M50
<S> AF COMPLEX ASSEMBLY (AWZ3489)
(FOB A—450R) C125, 126 CERAMIC CAPACITOR CCCSL101J50
SEMICONDUCTORS C127, 128 CERAMIC CAPACITOR CCDSL221J50
C129 CERAMIC CAPACITOR CKPYX103N25
IC101 OP-AMP-IC M5220P C139, 140 CERAMIC CAPACITOR CCDSL330J50
C141 CERAMIC CAPACITOR CKCYF103Z50
Q203 —208 TRANSISTOR 2SA1048
Q211, 212 TRANSISTOR 2SC1845 C201, 202 ELECTROLYTIC CEEA2R2M50
Q215-218 TRANSISTOR 2SA1048 CAPACIT
Q219, 220 TRANSISTOR 2SC2705 C203, 204 CERAMIC CAPACITOR CCCSL101K500
Q221, 222 TRANSISTOR 2SC3298 C205, 206 CERAMIC CAPACITOR CCCSL101J50
C207, 208 CERAMIC CAPACITOR CCCSL470J50
Q223, 224 TRANSISTOR 2SA1306 C209, 210 CERAMIC CAPACITOR CCCSL181J50
Q225, 226 TRANSISTOR 2SC2603
Q227, 228 TRANSISTOR 2SC1845 C211, 212 ELECTROLYTIC CEEA221M16
Q229, 230 TRANSISTOR 2SA992 CAPACIT
Q231, 232 TRANSISTOR 2SA1145 C213-216 CERAMIC CAPACITOR CCCSL120K500
C217, 218 ELECTR.CAPACITOR CEAS101M10
Q233, 234 TRANSISTOR 2SA992 C219-222 ELECTR.CAPACITOR CEAS3R3M100
Q237 TRANSISTOR 2SC1845 C225, 226 ELECTR.CAPACITOR CEAS331M10
Q238 TRANSISTOR 2SA992
Q291-294 TRANSISTOR 2SA992 C227-230 CERAMIC CAPACITOR CCCSL330K500
Q301, 302 TRANSISTOR 2SC1845 C231, 232 CERAMIC CAPACITOR CKCYB122K50
C233-236 ELECTR.CAPACITOR CEAS100M50
Q303, 304 TRANSISTOR 2SC2458 C237, 238 ELECTR.CAPACITOR CEAS101M50
Q305 TRANSISTOR 2SA1048 C239-242 POLYESTER CQMXA472J100
Q306 TRANSISTOR 2SC1815 CAPACITOR
Q307 TRANSISTOR 2SC2458
C244 MYLOR FILM CQMA224K50
D201, 202 ZENER DIODE RD2.7ESB1 CAPACITOR
D209 —216 DIODE 1SS252 C245, 246 CERAMIC CAPACITOR CKCYB331K50
D217-220 ZENER DIODE RD8.2ESB1 C247, 248 AUDIO FILM CFTXA103J50
D301-306 DIODE 1SS252 CAPACITOR
D307 ZENER DIODE RD15ESB C251-254 CERAMIC CAPACITOR CCCSL680K500
C255 CERAMIC CAPACITOR CCCSL680J50
D507 DIODE D5SB20F
C256 CERAMIC CAPACITOR CCDSL470J50
SWITCHES &RELAIES C301, 302 ELECTR.CAPACITOR CEANP2R2M50
RY301-303 RELAY ASR1038 C303 ELECTROLYTIC CEAS471M6
CAPACIT
S701 SWITCH ASD1017 C304 CERAMIC CAPACITOR CKCYF103Z50
S702 SWITCH ASU1002 C305 ELECTR.CAPACITOR CEAS101M25
S703 PUSH SWITCH SULL6S C306 —308 ELECTR.CAPACITOR CEASR47M50
COILS C401-404 AUDIO FILM CFTXA104J50
CAPACITOR
L103-106 AXIAL INDUCTOR LAU221K C505 ELECTROLYTIC ACH1189
L401, 402 COIL ATH1009 CAPACIT
C506 ELECTROLYTIC ACH1190
CAPACITORS CAPACIT
C103, 104 CERAMIC CAPACITOR CCCSL330J50 C703 —708 CERAMIC CAPACITOR CCCSL271J50
C107, 108 ELECTR.CAPACITOR CEAS101M10
C109, 110 AUDIO FILM CFTXA683J50 C711, 712 CERAMIC CAPACITOR CCCSL271J50
CAPACITOR C715, 716 CERAMIC CAPACITOR CCCSL271J50
cm, ii2AUDIO FILM CFTXA183J50 C719, 720 CERAMIC CAPACITOR CCCSL271J50
CAPACITOR C725 CERAMIC CAPACITOR CCCSL221J50
C727, 728 CERAMIC CAPACITOR CCCSL221J50
25

A-550R. A-4SOR
Mark No. Description
C731
C851, 852
RESISTORS
VR201, 202
VR701
R121, 122
R133, 134
R141, 142
R143, 144
R201, 202
R203, 204
R205, 206
R207, 208
R209, 210
R211-214
R215, 216
R217, 218
R219, 220
R221, 222
R223, 224
R225, 226
R227, 228
R229-232
R233, 234
R237, 238
AR239—242
AR243, 244 .
AR245—248
R249, 250
R251, 252
R255, 256
AR257-260
AR261-264
VR
CARBON FILM
RESISTOR
CARBON FILM .
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTER
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
FUSIBLE RESISTOR
CARBON FILM
RESISTOR
FUSIBLE RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
CARBON FILM
RESISTOR
FUSIBLE RESISTOR
FUSIBLE RESISTOR
Parts No. Mark No. Description Parts No.
CKCYF1G3Z50 AR265-268 FUSIBLE RESISTOR RFA1/4PS4R7J
CKDYF103Z50 AR269, 270 RESISTOR (0.33, 5W) ACN1063
ACPI045
R275, 276 CARBON FILM
RESISTOR RD1/4PM472J
R277, 278 CARBON FILM RD1/4PM222J
ACX1060 RESISTOR
RDR1/4PM820J AR281-284 FUSIBLE RESISTOR RFA1/4PS331J
AR285, 286 FUSIBLE RESISTOR RFA1/4PS101J
RDR1/6PU471J AR287, 288 FUSIBLE RESISTOR RFA1/4PS4R7J
RDR1/6PU563J AR289, 290 FUSIBLE RESISTOR RFA1/4PS101J
AR301, 302 CARBON FILM
RESISTOR RD1/4PMF222J
RD1/4PM560J AR308 CARBON FILM
RESISTOR RD1/4PMF101J
RDR1/4PM221J R311 CARBON FILM
RESISTOR RD1/4PM101J
RDR1/4PM104J R312-315 CARBON FILM
RESISTOR RD1/4PM181J
RD1/4PM152J
RD1/4PM103J
R317-324 CARBON FILM
RESISTOR RD1/4PM181J
R325-327 CARBON FILM
RESISTOR RD1/4PM221J
RD1/4PM561J AR330 CARBON FILM
RESISTOR RD1/4PMF010J
RD1/4PM562J AR401, 402 CARBON FILM
RESISTOR RD1/4PMFL101J
RDR1/4PM102J AR403, 404 METAL OXIDE
RESISTOR RS1LMF331J
RDR1/4PM124J
RD1/4PM473J
AR407, 408 CARBON FILM
RESISTOR RD1/4PMFL100J
R731, 732 CARBON FILM
RESISTOR RD1/4PM103J
RD1/4PM101J
RD1/4PM332J Other resistors RD1/8PMOCO
OTHERS
RD1/4PM332J PIN JACK (4P) AKB1007
PIN JACK (6P) AKB1008
RD1/4PM561J PIN JACK (6P) AKB1024
RD1/4PM332J SPEAKER TERMINAL
8-P AKE1011
RD1/4PM101J CN10, 12 CONNECTOR (4P) KPE4
RDR1/4PM224J CN13 CONNECTOR (10P) KPE10
CN19 CONNECTOR (6P) KPE6
CN4 CONNECTOR (15P) KPE15
RFA1/4PS101J CN8 CONNECTOR (7P) KPE7
RD1/4PMF561J CN9 JUMPER CONNECTOR KPC8
RFA1/4PS101J ®TONE ASSEMBLY (AWZ3491)
RD1/4PM122J (FOR A-550R AND A-550R -S)
RD1/4PM103J SEMICONDUCTORS
IC601, 602 OP-AMP IC RC4558DXP
RD1/4PM561J Q601, 602 N-FET 2SK246
RFA1/4PS101J
RFA1/4PS470J
Q851, 852 TRANSISTOR DTC143ES
26

A-S50R. A-450R
Mark No. Description Parts No.
D601, 602 LED (RED) AEL1065
D603 LED AEL1084
D605, 606 DIODE 1SS252
D607 LED (RED) AEL1065
SWITCHES
S601, 602 PUSH SWITCH ASG1019
S604 SWITCH ASG1029
CAPACITORS
C601, 602 ELECTR.CAPACITOR CEAS010M50
C603, 604 AUDIO FILM
CAPACITOR CFTXA823J50
C605, 606 ELECTR.CAPACITOR CEAS2R2M50
C607, 608 CERAMIC CAPACITOR CKDYX153M25
C609, 610 CERAMIC CAPACITOR CKDYX823M25
C611, 612 CERAMIC CAPACITOR CKCYB332K50
C613, 614 CERAMIC CAPACITOR CKDYX183M25
C615, 616 ELECTR.CAPACITOR CEAS2R2M50
C617, 618 ELECTR.CAPACITOR CEAS100M25
C619, 620 CERAMIC CAPACITOR CCDSL390J50
C625, 626 CERAMIC CAPACITOR CKDYX104M25
C627, 628 CERAMIC CAPACITOR CKDYX823M25
C629, 630 ELECTR.CAPACITOR CEAS470M25
C631, 632 ELECTR.CAPACITOR CEAS221M25
C635, 636 CERAMIC CAPACITOR CCDSL150J50
C641, 642 CERAMIC CAPACITOR CCCSL470J50
C643 CERAMIC CAPACITOR CKCYF103Z50
C645, 646 CERAMIC CAPACITOR CKCYB102K50
C647, 648 CERAMIC CAPACITOR CCCSL820J50
RESISTORS
VR603, 604 VARIABLE
(100K— 20AX2) ACT1045
R651, 652 CARBON FILM
RESISTOR RD1/4PM101J
R857 CARBON FILM
RESISTOR RD1/4PM331J
Other resistors RD1/8PMLCO
Mark No. Description Parts No.
CAPACITORS
C601, 602 ELECTR.CAPACITOR CEAS010M50
C605, 606 ELECTR.CAPACITOR CEAS2R2M50
C607, 608 CERAMIC CAPACITOR CKDYX153M25
C609, 610 CERAMIC CAPACITOR CKDYX823M25
C611, 612 CERAMIC CAPACITOR CKCYB332K50
C613, 614 CERAMIC CAPACITOR CKDYX183M25
C615, 616 ELECTR.CAPACITOR CEAS2R2M50
C617, 618 ELECTR.CAPACITOR CEAS100M25
C619, 620 CERAMIC CAPACITOR CCDSL390J50
C625, 626 CERAMIC CAPACITOR CKDYX104M25
C627, 628 CERAMIC CAPACITOR CKDYX823M25
C629, 630 ELECTR.CAPACITOR CEAS470M25
C631, 632 ELECTR.CAPACITOR CEAS221M25
C641, 642 CERAMIC CAPACITOR CCCSL470J50
C645, 646 CERAMIC CAPACITOR CKCYB102K50
C647, 648 CERAMIC CAPACITOR CCDSL390J50
RESISTORS
VR603, 604 VARIABLE
(100K-20AX2) ACT1045
R651, 652 CARBON FILM
RESISTOR RD1/4PM101J
R857 CARBON FILM
RESISTOR RD1/4PM331J
Other resistors RD1/8PMEXO
FUSE ASSEMBLY
CAPACITOR
C953 CKA (0.01/AC400V) ACG1002
®TONE ASSEMBLY (AWZ3492)
(FOR A--450R)
SEMICONDUCTORS
IC601, 602 OP-AMP IC RC4558DXP
Q851, 852 TRANSISTOR DTC143ES
D602 LED (RED)
D603 LED
D607 LED (RED)
AEL1065
AEL1084
AEL1065
SWITCHES
S602 PUSH SWITCH ASG1019
S604 SWITCH ASG1029
27