PIONEER MA990 Service Manual

Cover page of PIONEER MA990 Service Manual

Service Manual for PIONEER MA990, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

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  • File size: 0.83 MB
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background image
MA-990
Type
Model
Power Requirement
Remarks
MA-990
NY
AC230V
MIC.MIXER
ORDER NO.
TRT1121
O - IZC DEC. 1997 Printed in Japan
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 1997
c
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
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
CONTENTS
background image
MA-990
Type
Model
Power Requirement
Remarks
MA-990
NY
AC230V
MIC.MIXER
ORDER NO.
TRT1121
O - IZC DEC. 1997 Printed in Japan
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 1997
c
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
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
CONTENTS
background image
2
MA-990
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
6
AC Power Cord
PDG1003
7
· · · · ·
NSP
8
Chassis
MNA3012
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
· · · · ·
17
Power Button
MNK3081
18
Button
MNK3082
19
Rotary Knob (A)
RAC1861
20
Insulator Assy
AMR2140
NSP
21
Angle
MNA3016
22
Packing Case
MHG1190
NSP
23
Power Holder
MNA3017
24
Protector
MHA3012
25
Sheet
MHL3013
26
Operating Instructions
MRB1025
(English/French/Spanish)
27
Connection Cord (AUDIO)
MDE1050
28
Cover
MNG3008
29
Screw
BBZ30P060FZK
30
Screw
BBZ40P060FZK
31
· · · · ·
32
Display Panel
MAH1015
33
Screw
ATZ30P080FMC
34
· · · · ·
35
Screw
BBZ30P100FZK
36
Screw
BBZ30P060FMC
37
Pad
MHA3013
38
· · · · ·
39
Panel
MNK1196
40
Poly Bag
PO230
×340×0.05A
41
Connector
MDF1024
42
Connector
MDF1019
43
Warranty Card
ARY7008
· PARTS LIST
Mark No. Description
Part No.
1. EXPLODED VIEWS AND PARTS LIST
NOTES:
· Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
· The 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.
· Screws adjacent to mark on the product are used for disassembly.
· PACKING
24
37
27
40
26
43
25
24
22
background image
3
MA-990
· EXPLODED VIEW
41
42
background image
MA-990
4
A
B
C
D
1
23
4
12
3
4
Note : When ordering service parts, be sure to refer to
"EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
C011
01
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
3
2
1
4
5
6
7
8
9
10
11
12
3
2
1
4
5
6
7
8
9
10
11
3
2
1
4
5
6
7
8
9
3
2
1
4
5
6
7
8
9
10
11
12
3
2
1
4
5
6
7
8
9
10
11
3
2
1
4
5
6
7
8
9
3
2
1
4
5
6
7
8
9
10
11
12
3
2
1
4
5
6
7
8
9
10
11
3
2
1
4
5
6
7
8
9
+
+
+
+
+
+
MAIN BOARD ASSY (MWX1079)
VOLUME BOARD ASSY
(MWX1078)
FRONT BOARD ASSY (MWX1077)
JA402
MKN1017
L
R
R401
C401
330P
C425 33/16
C409 33/16
C410 33/16
C650
33/16
C611
33/16
C607
1/50
C608
1/50
C612
33/16
C601
33/16
C602
33/16
C618 33/16
C620
33/16
C622
1000P
C674
1000P
ADRVdd
ADR3
ADM2
ADMVss
ADM1
ADMVdd
ADM3
P0
P1
P2
P3
P4
Vdd3
Vss3
SIRQ
SI
SICK
SRDY
SIAK
A0
A1
A2
A3
A4
A5
A6
A7
A8
D7
D6
D5
Vdd4
Vss4
D4
D3
D3
D2
C653
0.01
C654
0.01
C656
47/16
C640
0.01
C641
0.01
R670
R671
R672
R673
100
R652
100
R653
100
R654
100
R656
100
R655
100
R657
100
R658
100
R659
100
R675
100
R676
100
R677
100
R678
100
A0
A1
A2
A4
A3
A5
A6
A7
RAS
CAS
RE
WE
100
100
100
C642
33/16
IC602
LC32464P-80
IC601
LC83025E
L605
2.2
SW501
MSG3005
IC503 (2/2)
M5218AL
IC503 (1/2)
M5218AL
IC504 (1/2)
M5218AL
R527
220
R531
220
R534
220
R529
100
R530
10k
R532
10k
R535 33k
C529
33/16
C527
33/16
C530
10/50
C531
10/50
R533
33k
R528
33k
C528 33P
9
I/O1
14
13
12
11
8
7
6
10
16
1
4
5
I/O2
I/O3
I/O4
VSS
2
A0
A1
A2
A3
A4
A5
A6
A7
RAS
CAS
OE
WE
3
15
17
18
F602
MTF3002
F601
MTF3002
C673
33/16
R629
91k
R626
91k
R630
11k
DSPVCC
41
42
43
44
45
46
47
48
49
50
51
53
52
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
40
TES
ADR1
39
ADRVss
38
ADR2
37
ADL3
36
ADLVdd
35
ADL1
34
ADLVss
33
ADL2
32
DARVdd
31
DADR
30
DARV
ss
29
VCC
C613
1500P
C614
1500P
L610
2.2
C677
1000P
C676
33/16
L603
2.2
C655
47/16
C617 1/50
C651
33/16
C407 1000P
R409 100
R407 100k
R411
100k
L611
2.2
C665 1000P
C666
1000P
C603
1000P
C604
1000P
C615
1000P
R412
100k
R413
100
R685
1M
R686
1M
R684
1M
R611
91k
R612
91k
R613
110k
R617
91k
R619
11k
R618
91k
R620 11k
R614
110k
R627 110k
R631
1.1k
R632
1.1k
R604
1.1k
R622
1.1k
R633
1.1k
R601
100k
R602
100k
R621
100k
R605
1.1k
R606
1.1k
R623
1.1k
C605
4700P
C606
4700P
C616
4700P
R603 1.1k
R607 3.9k
R608 3.9k
R624 3.9k
R625 1.5k
R609 1.5k
R610 1.5k
R414
100
R408 100k
R410 100
C405
330P
C426
33/16
C408
1000P
C402
330P
C403
330P
C404
330P
C406
330P
C501
0.01
R501
470
R511
470
R502
56k
R503
33k
IC501 (1/2)
UPC4570HA
R504
330
R507
10k
R508
10k
Q501
2SA1048
Q502
2SA1048
R509 47k
KMI3
KMI1
KMO3
R510 47k
R506
100
R505
4.7k
C502
0.01
C503
2200P
C504
4.7/50
C507 1000P
C508 33/16
C505
10/50
C506
1800P
C509
0.01
C510
0.01
1k
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
DG1
DG1 DG1 DG1
DG2
AG
AG
AG
AG
+
AG
AG
AG
AG
AG
AG
AG
IS1
IS2
AG
AG
AG
-9V
+9V
+9V.2
+9V
+5V
+5V
+5V
+5V
DG2 DG2
D0
D1
D2
D3
DG1
AG
AG
VCC
VCC
VCC
VCC
DG1
DG1
DG1
VCC
VCC
DG1
24
12
VSS
VDD
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
G2
G1
D
C
B
A
19
0
D209
4
3
2
1
N
#1
#2
#3
#4
D210
D211
D212
D213
D214
D215
D216
D217
D202
D203
D204
D205
D206
330
330
270
270
330
R202
R203
R204
R205
R206
D207
D218
SUR
VOLE
VOLP
OTK
LD
TAPE
VCR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
18
20
21
22
23
KEY.MATRIX
LED.SELECT
DG1
AG
AG
AG
AG
+9V.2
+9V.2
MIC3
1
3
2
4
6
5
MIC1,2
DG2
DG2
DG2
AG
AG
FG
FG
FG
DG1
DG1
AG
AG
AG
VCC
AG
+9V.2
AG
R402
1k
R403
1k
R404
1k
R405
1k
R406
1k
1
2
3
1
2
3
16
1
5
2
4
12
14
15
11
6
3
13
10
9
7
8
4
6
5
2
4
1
6
5
4
2
3
7
8
9
1
LD
JA401 (1/2)
MKN1024
JA401 (2/2)
MKN1024
JA501
MKN3005
JA502
MKN3006
JA503
MKN3005
JA504
MKN3005
L
R
VCR
L
R
TAPE
6
7
8
R512
56k
R513
33k
IC502 (1/2)
UPC4570HA
R514
330
R516
100
R515
4.7k
C511
2200P
C512
4.7/50
C513
10/50
C514
1800P
C523 33/16
C524 1000P
AG
AG
AG
AG
AG
-9V
+9V.2
2
4
1
6
7
8
5
1
C550
0.01
R517
470
R518
56k
R519
33k
IC502 (2/2)
UPC4570HA
R520
330
R522
100
R521
4.7k
C517
2200P
C518 4.7/50
C521 33/16
C519
10/50
C520
1800P
C522
1000P
R301
3.3k
VR301
10k(B)
MCS3002
MIC1
MIC2
MIC3
ECHO
MUSIC
VR302
10k(B)
MCS3002
VR303
10k(B)
MCS3002
VR304
10k(B)
MCS3003
VR305
50k(B)
MCS1014
SW
201
SUR
SW
202
VOCE
SW
203
VOCP
SW
204
OTK
SW
205
LD
SW
206
TAPE
SW
208
VCR
C202
1/50
D201,206,207,218 :SLR-342VC
D202,203,205,
:SLR-342MC
D209-212,214-217
D204,213
:SLR-342DC
R208
330
R201
330
D201
C201
0.01
IC201
TC74HC154AP
SW
209
SW
210
N
SW
211
#
R302
3.3k
R303
3.3k
AG
FG
AG
AG
AG
AG
MIC1
MIC2
MIC3
MIC3
MIC1,2
ECHO
ECHO
R
L
R
AG
KMI1
KMI2
KMI3
KMI4
KMO1
KMO2
KMO3
LSEL1
LSEL2
LSEL3
LSEL4
LED1
LED2
LED3
LED4
LED5
LED6
LED8
L
JA505
MKP1019
JA701
MKP1022
MDD1019
JA702
MKP3007
MDD1018
CN301
MEP3009
MDD1016
CN201
MEP3015
CN202
MEP3010
AG
2
4
1
4
3
2
1
+
+
MIC
IC402 (1/2)
M5218AL
IC402 (2/2)
M5218AL
IC603 (1/2)
M5218AL
IC603 (2/2)
M5218AL
IC604 (1/2)
M5218AL
IC604 (2/2)
M5218AL
-9V
2
3
1
L
R
ECHO
8
6
5
7
6
5
7
4
2
3
1
8
2
3
1
8
4
6
5
7
4
-9V
-9V
DG2
DSPVCC
DG2
DSP,CONTROL
DG2
P0
P4
SIRQ
SI
SICK
SRDY
SIAK
6
5
7
2
3
1
8
2
3
1
8
4
-9V
IC401
TC4052BP
VDD
VSS
VEE
B
A
XC
YC
Y0
Y1
Y2
Y3
X0
X1
X2
X3
INH
J501
0
SW201-206,208-211
: MSG3006
ECHO
INPUT.SELECT
C537
33/16
L608
2.2
POWER
31
2
31
2
31
2
3
3
1
1
2
2
6
4
5
C
B
A
3.SCHEMATIC DIAGRAM
A B C
A-a
background image
MA-990
5
A
B
C
D
5
67
8
5
6
7
8
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
11
12
13
14
15
16
17
18
19
20
21
+
+
+
+
+
R711
2.7K
R002
1M
R006
10K
R003
22K
R710
100K
R709
2.7K
R004
4.7K
R005
10K
+
+
+
+
+
+
+
+
+
C325
0.01
C324
0.01
C323
0.01
C321
0.01
C322
0.01
+
!
!
!
!
!
!
!
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
2
1
1
2
BLU
RED
RED
BLU
BLK
BLU
WHT
C663
4.7/50
C637
4.7/50
C415
10/50
C417
10/50
C418
10/50
C416
10/50
C429
33/16
C427
33/16
C428
33/16
C414
100p
C413
100p
C421
470p
C422
470p
C419
470p
C420
470p
C638
4.7/50
C664
4.7/50
R637
9.1k
R682
9.1k
R641
9.1k
R643
9.1k
R645
100
R646
100
R648
100k
R647
100k
R425
100k
R426
100k
R433
100k
R434
100k
R542
15k
R543
27k
R437
100
R438
100
R435
100
R431
100k
R432
100k
R436
100
R428
2.2k
R427
2.2k
R429
4.7k
R430
4.7k
R415
6.8k
R417
10k
R419
10k
R421
1k
R422
1k
R420
10k
R416
6.8k
R418
10k
R712
47k
R704
47k
R642
9.1k
R644
9.1k
R638
9.1k
R683
9.1k
R640
9.1k
R639
9.1k
R635
100k
R636
100k
5
6
3
2
1
1
4
7
C630
100/16
C629
100/16
C632
100/16
C625
4700p
C626
4700p
C633
4700p
C634
4700p
C623
2200p
C624
2200p
C628
270p
C627
270p
C636
180p
C635
180p
AG
­9V
­
+
­
+
5
6
4
7
­
+
5
6
7
8
­
+
­
+
­
+
5
6
7
4
3
2
8
4
­
+
1
3
2
8
IC606(1/2)
M5218AL
IC605(2/2)
M5218AL
IC605(1/2)
M5218AL
IC606(2/2)
M5218AL
+9V
+
C631
100/16
+9V
AG
AG
AG
­9V
-9V
-9V
+9V
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
IC404(1/2)
M5218AL
IC404(2/2)
M5218AL
R423
15k
15k
R424
Q401
2SD2144S
Q402
2SD2144S
IO OI
CI
IO OI
CI
IO OI
CI
IO OI
CI
43
5
89
6
12
13
11
10
12
14
7
IC405
(1/4)
IC405
(4/4)
IC405
(3/4)
IC405
(2/4)
JA403(1/2)
MKN1024
JA403(2/2)
MKN1024
1
2
3
4
5
6
L
R
LINE
FG
FG
+9V
L
R
TAPE
IC405 :
TC4066BP
VCC
VCC
VCC
VCC
J701
J702
R713
47k
R714
47k
R715
47k
R716
47k
C702
0.01
C703
0.01
C701
47/10
MTF3002
F701
DG1
P00
PE1/TRB
PE0/TRA
Vdd
PD3/CMP3
PD2/CMP2
PD1/CMP1
PD0/CMP0
PC3/Vr1
PC2/Vr0
P63/PIN1
P62/SK1
P61/SO1
P60/SI1
P53/INT2
P52
P51
P50
P43
P42
RES
OSC2
P01
P02
P03
P10
P11
P12
P13
SI0/P20
SO0/P21
SK0/P22
INT0/P23
INT1/P30
PO0/P31
PO1/P32
HLD/P33
P40
P41
TEST
Vss
OSC1
RESDSP
LED1
P4
LED2
LED3
LED4
LED5
LED6
LED7
REFH
VrefH
AVdd
LRCK
DATAL
DATAR
BCLK
SYSCLK
DVdd
NC
VrefL
AGND
REFL
DGND
MODE2
MODE1
FSEL
TSTOUT
LED8
LSEL1
LSEL2
LSEL4
LSEL3
IS1
KMO1
KMO2
KMO3
KMI1
KMI4
KMI2
KMI3
IS2
SI
SICK
P0
SIRQ
SRDY
SIAK
IC701 PDC031A
DG1
X701
MSS3013
4MHz
2
13
DG1
CH1OUT CH2OUT
MTF3002
F603
IC608
LC78815M
AG
AG
AG
C660
47/10
C662
47/10
C661
47/10
C669
1000p
C670
1000p
C672
1000p
C671
1000p
L606
2.2
+5V
DG1
DG1 DG1
DG1
DG1
DG1
R537
120k
C533
33p
R536
9.1k
R540
8.2k
R541
47k
AG
AG
AG
AG AG
AG
C532
0.068
1SS254
D501
Interrupt Det .
C535
1/50
C534
33/16
R538
100k
R539
330k
C536
10/50
IC504(2/2)
M5218AL
­9V
+5V
Q504
2SC2458
Q701
2SC2458
Q001
2SA933S
Q002
2SC1740S
Q003
2SA933S
R708
10k
IC702
M51951BSL
31
2
C706
1/50
C013
3.3/50
C014
100/25
C012
10/50
C708
220/10
C707
0.01
DG1
RD4.3ES
D702
D701
1SS254
DG1
VCC
AG
AG
AG
AG
+9V.2
D012
RD16JS
D015
1SS254
1SS254
D011
1SS254
D014
1SS254
D010
1SS254
D009
D013
1SS254
­9V
+9V
FG
BRN
LIVE
NEUTRAL
BLU
AC 230V
50/60Hz
AC POWER CORD
PDG1003
T002
JKE1002
JKE1003
T001
JKE1001
T003
POWER TRANSFORMER
MTT1016
5
2
3
4
1
6
10
11
12
8
9
15
R001
4.7k
FG
FG
MEP1049
CN001
MEP1049
CN321
SW321
MSG1007
MDD1015
17
18
16
3
1
2
6
4
5
12
10
11
9
7
8
15
13
14
POWER SWITCH BOARD ASSY
(MWX1076)
+9V.2
L501
2.2
OUT
COM
COM
IN
OUT IN
COM
OUT IN
C002
1000/25
C003
1000/25
C001
1000/25
D003
!
D005
D007
! D004
! D008
!
D006
D001
D002
C008
0.1
C009
0.1
C007
0.1
0.1
C010
47/10
C005
47/16
C006
47/16
C004
47/16
+5V
NJM78L05A
IC004
13
2
NJM7809FA
IC001
1
1
3
3
2
!
!
COM
OUT IN
NJM7805FA
IC003
13
2
2
AG
AG
+9V
­9V
IC002
NJM7909FA
VCC
FG
DG1
INPUT.SELECT
LED.DRIVE
KEY.MATRIX
LED.SELECT
D001­D008 :
ERA15­02KFRB
+
D3
D2
D1
D0
RAS
CAS
D2
D1
D0
RAS
CAS
1
76
77
78
79
80
DREAD
2
DWAT
3
ASO
4
BCKO
5
LRCKO
6
FS3840
7
ASI
8
BCKI
9
LRCKI
10
FS3841
11
SELC
12
Vdd1
13
OSC1
14
OSC2
15
Vss1
16
Vss2
17
RES
18
SAIF
19
SAOF
20
TEST6
21
TEST1
22
TEST2
23
TEST3
24
ST4
DARVss
29
DALVdd
28
DADL
27
DALVss
26
Vdd2
25
TEST5
L602
2.2
C675
1000P
X601
MSS1017
R687
100
C643
13P
C644
1000P
C645
30P
C657
22P
C658
22P
C659
22P
L601
1.5
33.8688MHz
+5V
-9V
IC501 (2/2)
UPC4570HA
C515 33/16
C516
1000P
AG
4
3
2
5
MIC
MIC
MIC
Lch
Rch
Rch
Lch
DG2
DG2
DG2
WE
RE
DG2
DG1
R679 100
100
100
R680
R681
RESDSP
: AUDIO SIGNAL ROUTE
POWER SWITCH BOARD ASSY
SW321 : POWER STANDBY/ON
MAIN BOARD ASSY
SW501 : MIC.3 ECOH
FRONT BOARD ASSY
SW201 : SURROUND
SW202 : CHORUS
SW203 : VOC.P.
SW204 : ONE T.K.
SW205 : INPUT SELECTOR1
SW206 : INPUT SELECTOR2
SW208 : INPUT SELECTOR3/TAPE
SW209 : KEY CONTROL
SW210 : KEY CONTROL
SW211 : KEY CONTROL #
DG1DG1 DG1 DG1
+9V.2
­9V
D
Large size
SCH diagram
Guide page
Detailed page
A-a
A-a
A-a
A-b
A-b
A-b
A-b
A D

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