Pioneer A-107 Service manual

ORDER NO.

RRV1913

STEREO AMPLIFIER

A-107

÷ Refer to the service manual RRV1935 for A-207/MLXJ.

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type

MLXJ ‡ AC220–230V

MYXJ/EW ‡ AC220–230V

MYXJ/GR ‡ AC220–230V

MVXJ ‡ AC220–230V

YPWXJ ‡ AC240V

Model

Power Requirement

A-107

CONTENTS

1. CONTRAST OF MISCELLANEOUS PARTS

2. SCHEMATIC DIAGRAM

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Remarks

2
6

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923

PIONEER ELECTRONIC CORPORATION 1998

T – ZZE MAY 1998 Printed in Japan

A-107

1. CONTRAST OF MISCELLANEOUS PARTS

NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.

÷ The

÷ Reference Nos. indicate the pages and Nos. in the service manual for the base model.
÷ When ordering resistors, first convert resistance values into code form as shown in the following examples.

CONTRAST TABLE

A-107/MLXJ, MYXJ/EW, MYXJ/GR and A-207/MLXJ are constructed the same except for the following:

Ref. No. Mark Symbol and Description A-207 A-107 Remarks

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.

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%, and K = 10%).
560 Ω = 56 × 10
47k Ω = 47 × 10

1

= 561................................................... RD1/4PU 5 6 1 J

3

= 473 .................................................. RD1/4PU 4 7 3 J

0.5 Ω = R50 ...................................................................... RN2H Â 5 0 K

1 Ω = 1R0 ......................................................................... RS1P 1 Â 0 K

Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors).

1

5.62k Ω = 562 × 10

= 5621 ........................................... RN1/4PC 5 6 2 1 F

Part No.

MLXJ MLXJ MYXJ/EW MYXJ/GR

P5 - 2 FRONT R ASSY AWX7121 AWX7121 AWX7121 AWX7121

NSP CONTROL ASSY AWG7012 AWG7011 AWG7011 AWG7011

P5 - 1 FRONT L ASSY AWX7122 AWX7120 AWX7120 AWX7120 ∗

NSP AF COMPLEX ASSY AWM7355 AWM7353 AWM7353 AWM7353
P5 - 6 VOLUME ASSY AWX7112 AWX7112 AWX7112 AWX7112
P5 - 4 AC PRIMARY ASSY AWX7113 AWX7113 AWX7113 AWX7113
P5 - 5 NSP HEADPHONE ASSY AWX7114 AWX7114 AWX7114 AWX7114
P5 - 7 AF ASSY AWX7116 AWX7111 AWX7111 AWX7111 ∗

P3 - 1 Operating Instructions ARE7158 ARE7158 Not used Not used
P3 - 1 Operating Instructions (English) Not used Not used ARB7137 Not used

P3 - 1 Operating Instructions (German) Not used Not used ARC7178 ARC7178
P3 - 1 Operating Instructions Not used Not used ARC7179 Not used

P3 - 5 Packing Case AHD7562 AHD7560 AHD7559 AHD7559

NSP Warranty Card Not used Not used ARY7009 ARY7009

P5 - 8 Fuse (FU1 : 1.25A) REK1023 Not used Not used Not used
P5 - 8 Fuse (FU1 : 0.8A) Not used REK1021 REK1021 REK1021
P5 - 11 Power Transformer ATS7190 ATS7192 ATS7192 ATS7192

P5 - 13 Rear Panel ANC7642 ANC7637 ANC7620 ANC7620
P5 - 14 Insulator AMR7198 AMR7198 PNW2766 PNW2766

P5 - 16 Screw ABA1027 BBZ30P080FZK BBZ30P080FZK BBZ30P080FZK
P5 - 38 Front Panel AMB7492 AMB7491 AMB7491 AMB7491

PCB ASSEMBLIES

PACKING

(Engkish/Spanish/Chinese)

(French/Spanish/Italian/Dutch/
Swedish/Portuguese)

EXTERIOR SECTION

(T1 : AC220–230V)

Note

∗: Refer to “ 7 CONTRAST OF PCB ASSEMBLIES ” and “ 2. SCHEMATIC DIAGRAM ”.

2

A-107

A-107/MVXJ, YPWXJ, and A-207/MLXJ are constructed the same except for the following:

Part No.

Ref. No. Mark Symbol and Description A-207 A-107 Remarks

MLXJ MVXJ YPWXJ

P5 - 2 FRONT R ASSY AWX7121 AWX7121 AWX7121

NSP CONTROL ASSY AWG7012 AWG7011 AWG7011

P5 - 1 FRONT L ASSY AWX7122 AWX7120 AWX7120 ∗1

NSP AF COMPLEX ASSY AWM7355 AWM7353 AWM7353
P5 - 6 VOLUME ASSY AWX7112 AWX7112 AWX7112
P5 - 4 AC PRIMARY ASSY AWX7113 AWX7113 AWX7113
P5 - 5 NSP HEADPHONE ASSY AWX7114 AWX7114 AWX7114
P5 - 7 AF ASSY AWX7116 AWX7111 AWX7111 ∗1

P3 - 1 Operating Instructions ARE7158 Not used Not used
P3 - 1 Operating Instructions (English) Not used ARB7137 ARB7137

P3 - 5 Packing Case AHD7562 AHD7559 AHD7560
P3 - 9 Power Cord ADG1154 Not used ADG1160

NSP Air Cap Not used AHG1087 Not used ∗2, No.3

NSP Warranty Card Not used ARY7009 PRY1003 ∗2, No.4

P5 - 8 Fuse (FU1 : 1.25A) REK1023 Not used Not used
P5 - 8 Fuse (FU1 : 0.8A) Not used REK1021 REK1021
P5 - 11 Power Transformer (T1 : AC220–230V) ATS7190 ATS7192 Not used
P5 - 11 Power Transformer (T1 : AC240V) Not used Not used ATS7193
P5 - 13 Rear Panel ANC7642 ANC7620 ANC7638

P5 - 14 Insulator AMR7198 PNW2766 AMR7198
P5 - 16 Screw ABA1027 BBZ30P080FZK BBZ30P080FZK
P5 - 38 Front Panel AMB7492 AMB7491 AMB7491

PCB ASSEMBLIES

PACKING

(English/Spanish/Chinese)

Power Cord with Fuse Not used ADG1156 Not used ∗2, No.1
Fuse (T5A) Not used AEK1046 Not used ∗2, No.2

EXTERIOR SECTION

Note ∗1: Refer to “ 7 CONTRAST OF PCB ASSEMBLIES ” and “ 2. SCHEMATIC DIAGRAM ”.

∗2: Refer to “ 7 EXPLODED VIEWS ”.

EXPLODED VIEWS

MVXJ type Only

No.1

No.2

No.3

Literature Bag

Except
MVXJ type

Power Cord

No.4 (MYXJ/EW, MYXJ/GR
and MVXJ types Only)

Operating Instructions

3