Pioneer a 223 service manual

Page 1

PIONEER

The future oI sound and vision.

5F; -: . ORDER NO.
cs? 9 <2 0 EDI: .» ARP1529
STEREO AMPLIFIER
A-EES-S
A-223 AND A-223-S HAVE FIVE VERSIONS:
Applicable model
Type A-223 Power requirement Export destination
A-223 -S
HE O - AC220V. 240v (switchable) * European continent
H8 0 - AC220V. 240v (switchable) * United Kingdom
HEZ l "- O AC220V. 240V (swtchable) * West Germany
SD 3 - ACIIOV. 120-127V. 220V. 240V (switchable) Kingdom of Saudi Arabia and general market
VP .3 - ACZ40V only Australia

a: Change the primary wiring of the power transformer.

0 This manual is applicable to the A-223/HE. HB, HEZ and A~223-S/HEZ types.
0 For the A-223/HB. HEZ and A-223-S/HEZ types, refer to page 18.

0 A-223-S/HEZ type is a silver model of A-223/HEZ type.

0 For the other types. refer to additional service manuals.

CONTENTS

1 EXPLODED VIEWS AND PARTS LIST --------- 2
2, PACKING ....................................................... 5
3. SCHEMATIC DIAGRAM ................................. 5
4. RC. BOARDS CONNECTION DIAGRAM -------- 9
5. ELECTRICAL PARTS LIST ------------------------ 15
6. FOR HB. HEZ AND

A77223-S/HEZ TYPES ............................... 18
7 SPECIFICATIONS .......................................... 29
8 PANEL FACILITIES ....................................... 30

PIONEER ELECTRONIC CORPORATION 4 1 Meguro 1- Chen a Aeguo- kt, Tr; It. ,ro 153. Japan
PIONEER ELECTRONICS SERVICE INC. PO Box WEC Long Beach Cali more 90831 U S A

PIONEER ELECTRONICS OF CANADA. INC. 505 Cc-chrane Drive \Iaiknam. Orlla'lc L3 8E3 Canaca
PIONEER ELECTRONIC [EUROPE] N.V. Keelberglaan I. 2.740 Revere-n Relgturr

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 78-184 Bottrvdary Road. Braesrcet 'ttuctc-wa 3135.;1usrraltaTFl [03] 5803911

"Ace ..... nnn .-.

Page 2

1. EXPLODED VIEW AND PARTS LIST

NOTES :

. Parts without part number cannot be supplzcd.

- lhe !_ mark found on some component parts indicates the impotance of the safety laczor of the part, Therefore. when

replacing. be sure to use parts of identical designation.

- For your parts Slock Control. the fast moving items are indicated with the marks *i and in

** GENERALLY MOVES FASTER THAN *.

This classification shall be adjusted by each distributor because it depends or: model number. temperature humidity. etc.
. Parts marked by G" are not always kept in stock. Their delivery time may be longer than usual or they may be unavailabm.

Parts List of Exterior

Mark No. Part No. __ Description
1 AW21429 AF assembly
2 CKDYF473250 Capacitor (C1)
3 COMA222K50 Capacitor (CZ)
.1 t 4 ATSIOSO Power transformer
(220/240V. T1}
L** 5 AEK-018 Fuse(T1.25A/250V. FU1)
6 AMR1350 Insulator assembly
7 AMR1353 Insulator assembly
8 AMB1319 Panel base assembly
9 AAB1061 Knob (VOLUME)
10 AAB1075 Knob (BASS. TREBLE.
BALANCE}
1 1 AAD1057 Push knob A (SPEAKERS)
12 AAD1343 Knob (POWER)
13 AA01345 Push rod assembly
14 AAM-O3O Friction plate
15 AMR1330 Indicator lens
16 ANB1173 Front panel
17 ANE1053 Bonnet case
18 ABH1021 Spring
19 ABH-052 Spring B
20 AMR1066 Plastic rivet
21 ABA - 298 Screw
22 ABA1 009 Screw
23 ABA101 1 Screw
24 ABA1047 Screw (GNDIl
25 ABN-065 Nut
26 ABN1006 Flange nut (M9)
27 BBZ3OP100FZK Screw
28 BYC40P120FMC Sorew
29 NK70FUC Nut
30 VMZSOPOGOFMC Screw
31 WSBOFMC Washer
32 WS4OFMC Washer
Y 33 ADG1021 AC power cord
34 AAD1056 Knob

(CD. PHONO. TUNER.
TAPE1. ADPT/TAPEZ)

35 ABH1017 Spring
36 ABA 7 297 Screw
37 AEC1035 Plastic rivet
38 AEC - 818 Mica sheet

Mark No. Part No. Description
101 Power SW assembly
102 Headphone assembly
103 SP SW assembly
104 Tone assembly
105 VR assemblv
106 LED assembly
107 Terminal (GND)

108 Chassis

109 Rear panel

110 Bottom plate

111 Transformer holder

112 Heat sink

113 GND ring

114 'erminal 2P (GNU)
(HEZ only:1

115 -----

1 16 Barrier