Pioneer a 44 service manual

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pioneer a 44 service manual

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Page 1

(U) PIONEER

Sefiice
Wanna]

CIRCUIT DESCRIPTIONS

ORDER NO.
ARP1234-A

REPAIR & ADJUSTMENTS

STEREO AMPLIFIER

A-44IBKJ

MODEL A-44 (BK) COMES IN THREE VERSIONS DISTINGUISHED AS FOLLOWS:

Typl Power "quit-mum Expon destination
HEZ AC220V, 240V (switchable) West Germany

HE AC220V, 240V (switchable) European continent

HE AC220V, 240V (switchable) United Kingdom

o This service manual is applicable to the A-44 (BK)/HEZ, HE and HB types.
0 As to the HE and HB types, please refer to page 17.

CONTENTS

I. EXPLODED VIEWS AND PARTS LIST ....... 3 4. SCHEMATIC DIAGRAM ................. 11
2. PACKING ........................... 6 5. ELECTRICAL PARTS LIST ............... 14
3. P.C. BOARDS CONNECTION DIAGRAM ..... 7 6. FOR HE AND HE TYPES ................ 17

PIONEER ELECTRONIC CORPORATION 4-1. Meguro l-Chame. Meguro-ku. Tokyo 153. Japan
PIONEER ELECTRONICS SERVICE INC. 90. Bax 1780. Long Beach. Calcfcrn-a 90301 USA.
TEL: [213] 420-5700
monasn ELECTRONIC [EUROPE] ~.v. Keecberglasn 1, 2740 Bevereni Eelgvum TEL: Cs/7752905
PIONEER ELECTRONICS AUSTRALIA RTV. LTD. 178-154 Bnundsry Road. Brseslde. Vlclzclma 3195. AUSCVBIB
TEL: [03; 550-9911
' YG © AUG. 1935 Primed in lawn

Page 2

A~44KEK1

Line voltage selection (HE. HEZ and HB wpesl

Line voltage can be changed with following suns.

I. Dgsconnecx the AC pomr cordr

24 Remove the mp cover.

3. Change the connecuon wire (To Power transformer)
of Terminal No, 3 (WHITE) as follow;

Voltage Terminal No, 3 Terminal No. 5
220V White wire ..........
240V ......... whim wile