Pioneer ma 990 service manual
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Page 1
(I!) PIONEER®
The Art of Entertainment
Service
Manual
MIC.MIXEFI
A-99.
ORDER NO.
TRT1 121
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
MIA-990
Type Power Requirement Remarks
CONTENTS
1. EXPLODED VIEWS AND PARTS LIST ................ 2
2. SCHEMATIC DIAGRAM ....................................... 4
3. PCB CONNECTION DIAGRAM .......................... 10
4. PCB PARTS LIST ............................................... 16
5. IC INFORMATION ............................................. 18
6. PANEL FACILITIES AND SPECIFICATIONS. 21
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. PO. Box 1760, Long Beach, CA 90801-1760, USA.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan I, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923
© PIONEER ELECTRONIC CORPORATION 1997 _ .
O - IZC DEC. 1997 Prmted m Japan
Page 2
MA-990
1. EXPLODED VIEWS AND PARTS LIST
NOTES: 0 Parts marked by NSP" are generally unavailable because they are not in our Master Spare Parts List.
0 The A mark found on some component parts indicates the importance ofthe safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
0 Screws adjacent to 7 mark on the product are asedfor disassembly.
o PARTS LIST . PACKING
Mark No. Description Part No.
1 MAIN BOARD Assy MWX1079
2 FRONT BOARD Assy MWX1077
NSP 3 VOLUME BOARD Assy MWX1078
NSP 4 POWER SWITCH BOARD Assy MWX1076
5 Cord Stopper MNK1183
A 6 AC Power Cord PDG1003
7 o o o a c
NSP 8 Chassis MNA3012
A 9 Power Transformer MTT1016
10 Bonnet MNA3013
11 Rear Panel MNA1114
12 Panel Assy MXA1043
13 Name Plate VAM1032
14 Indicator B RNK1385
15 Lens MNK3080
16 o o o c o
17 Power Button MNK3081
18 Button MNK3082
19 Rotary Knob (A) RACt861
20 Insulator Assy AMR2140
NSP 21 Angle MNA3016
22 Packing Case MHGt 190
NSP 23 Power Holder MNA3017
24 Protector MHA3012
25 Sheet MHL3013
26 Operating instructions MRB1025
(English/French/Spanish)
27 Connection Cord (AUDIO) MDE105O
28 Cover MNG3008
29 Screw BBZ3OP060FZK
30 Screw BBZ4OP060FZK
3'1 0 o o c o
32 Display Panel MAE-11015
33 Screw ATZSOPOBOFMC
34 O O O O C
35 Screw BBZ30P100FZK
36 Screw BBZ30P060FMC
37 Pad MHA3013
38 O O O O I
39 Panel MNK1196
40 Poly Bag PO230x340x0.05A
41 Connector MDF1024
42 Connector MDF1019
43 Warranty Card ARY7008