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ORDER NO.
TRT1121
MIC.MIXER
MA-990
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
NY
Model MA-990
AC230V
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. 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
c PIONEER ELECTRONIC CORPORATION 1997
O - IZC DEC. 1997 Printed in Japan
MA-990
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.
· PARTS LIST
Mark No. Description
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NSP NSP 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 MAIN BOARD Assy FRONT BOARD Assy VOLUME BOARD Assy POWER SWITCH BOARD Assy Cord Stopper AC Power Cord ····· Chassis Power Transformer Bonnet Rear Panel Panel Assy Name Plate Indicator B Lens ····· Power Button Button Rotary Knob (A) Insulator Assy Angle Packing Case Power Holder Protector Sheet Operating Instructions (English/French/Spanish) Connection Cord (AUDIO) Cover Screw Screw ····· Display Panel Screw ····· Screw Screw Pad ····· Panel Poly Bag Connector Connector Warranty Card
· PACKING
Part No.
MWX1079 MWX1077 MWX1078 MWX1076 MNK1183 PDG1003
24 37 27 40
NSP NSP
NSP
MNA3012 MTT1016 MNA3013 MNA1114 MXA1043 VAM1032 RNK1385 MNK3080 MNK3081 MNK3082 RAC1861 AMR2140 MNA3016 MHG1190 MNA3017 MHA3012 MHL3013 MRB1025 MDE1050 MNG3008 BBZ30P060FZK BBZ40P060FZK MAH1015 ATZ30P080FMC BBZ30P100FZK BBZ30P060FMC MHA3013 MNK1196 PO230×340×0.05A MDF1024 MDF1019 ARY7008
26 43 24
25
22
2
MA-990
· EXPLODED VIEW
41
42
3
1
2
3
4
MA-990
3.SCHEMATIC DIAGRAM
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
A
JA402 MKN1017 1 2 3
A-a
+5V C611 33/16 AG R613 110k R617 91k R611 8 91k 1
+ + + +
A
L LD R
JA401 (1/2) MKN1024 1 2 3 R401 1k R402 1k R403 1k R404 1k 4 6 5 R405 1k R406 1k
+9V
MAIN BOARD ASSY (MWX1079)
+9V C425 33/16 IC401 C407 1000P TC4052BP 16 1 Y0 VDD AG 5 Y1 3 YC 2 Y2 4 Y3 12 X0 14 X1 XC 13 R409 100 15 X2 10 A 11 X3 9 B R410 100 6 C426 VEE 7 INH 33/16 VSS C408 8 1000P AG AG AG -9V +9V.2
+
C409 33/16
+
+9V.2 R411 100k 8 1
L611 2.2 IC402 (1/2) M5218AL L R413 100
C401 330P AG C402 330P C403 330P AG C404 330P C405 330P
AG R407 100k 2 3
C665 1000P C607 R609 1.5k 1/50 C650 33/16 R685 2 R631 AG C601 1.1k AG 1M 33/16 R603 1.1k R607 3.9k 3
+
L VCR R
JA401 (2/2) MKN1024
L TAPE R
JA501 MKN3005
8 R505 4.7k R506 100
1
AG C501 0.01
AG C502 0.01
AG C505 10/50 VCC
+
R504 330
C506 1800P
B
FG 6 5 4 2 3 7 8 9 1 FG R511 2 470 4 C511 2200P AG
+5V AG Q501 2SA1048 R508 10k R509 47k R510 47k KMI1 F602 MTF3002 KMI3 C656 C654 C653 47/16 0.01 0.01 DG1 DG1 DG1 DG1
+
DSPVCC L608 2.2
+
JA502 MKN3006
DG1 R507 10k
C673 33/16 DG2
C674 1000P
C509 0.01 FG C512 4.7/50
+
C510 0.01 DG1 6 Q502 2SA1048 IC502 (1/2) UPC4570HA 8 5 R515
+
KMO3 VCC L605 F601 2.2 MTF3002 C640 0.01 C642 33/16
+
AG
AG
P4 SIRQ SI SICK SRDY SIAK
JA504 MKN3005
1 AG
R517 2 470 4 C517 2200P AG C550 0.01 FG
R514 330 C513 + 10/50 -9V AG AG +9V.2 C521 33/16 IC502 (2/2) C522 UPC4570HA 1000P C518 4.7/50 4 AG 1 2 R518 R519 3 33k R522 56k R521 100 AG 4.7k R520 C520 C519 +330 1800P 10/50
+ +
D0 D1 D2 D3
R670 R671 R672 R673
100 2 I/O1 100 3 I/O2 100 15 I/O3 100 17 I/O4
VSS 18 DG1
C676 33/16
+
C677 1000P
DG2 DG2 DG2 DSP,CONTROL +9V.2
+
P0
2 SW501 MSG3005 5
1 3 4 6 R528 33k C528 33P 6 7 5 R529 100 R530 10k
C
AG 2 3
R532 10k 8 1 4 C537 33/16
+
C531 C530 R533 10/50 2 10/50 33k
+
R535 33k 8 1 AG MIC
MIC3 MIC1,2
R527 220 AG
IC503 (2/2) M5218AL ECHO
R531 220 AG
IC503 (1/2) M5218AL
3 R534 220 AG IC504 (1/2) M5218AL
-9V AG
INPUT.SELECT
MIC1 MIC2 MIC3 MIC3 MIC1,2 ECHO ECHO R L R AG L
KEY.MATRIX LED.SELECT
KMI1 KMI2 KMI3 KMI4 KMO1 KMO2 KMO3 LSEL1 LSEL2 LSEL3 LSEL4
AG JA505 MKP1019 MDD1016 CN301 MEP3009 JA701 MKP1022 MDD1019 CN201 MEP3015
VCC JA702 MKP3007 MDD1018
LED1 LED2 LED3 LED4 LED5 LED6 LED8
DG1
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
+
AG
C529 33/16
+9V.2
C527 33/16
CN202 VCC MEP3010
VCC DG1
R301 3.3k 2 3
R302 3.3k 2 1 3
R303 3.3k 2 1 3
2 1 3
6 1 4
B
D209 D210 D211 D212 D213 D214 D215 D216 D217
SW 209
SW 210 N
SW 211 #
R208 330
D201,206,207,218 :SLR-342VC D202,203,205, :SLR-342MC D209-212,214-217 D204,213 :SLR-342DC
SW201-206,208-211 : MSG3006
4
A B C
1 2 3 4
4 3 2 1 N #1 #2 #3 #4
C
FRONT BOARD ASSY (MWX1077)
SUR VOLE VOLP OTK LD TAPE VCR
D
DG1 DG1 C202 1/50 VCC
R202 R203 R204 R205 R206
VR301 VR302 VR303 VR304 VR305 10k(B) 10k(B) 10k(B) 10k(B) 50k(B) MCS3002 MCS3002 MCS3002 MCS3003 MCS1014 MIC1 MIC2 MIC3 ECHO MUSIC
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
330 330 270 270 330
1 SW 205 LD SW 206 TAPE SW 208 VCR
IC201 C201 0.01 VDD TC74HC154AP 24 +
VSS 12
G1 G2
A B C D
5
2
3
SW SW SW SW 201 202 203 204 SUR VOCE VOCP OTK
VCC
D202 D203 D204 D205 D206 D207 D218
POWER
18 19
23 22 21 20
R201 330 D201
1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17
VCC DG1
VOLUME BOARD ASSY (MWX1078)
C011 01
D3 D2
65 66 67 68 69 70 71 72 73 74 75 76
DSPVCC DG2 L603 2.2
A5 A6 A7 A8 D7 D6 D5 Vdd4 Vss4 D4 D3
JA503 MKN3005
1
R512 R513 7 33k 56k
C641 0.01
9
R516 100 4.7k C514 1800P C523 33/16 C524 1000P
DG2 DG2 DG2 DG2
IC602 LC32464P-80 14 R652 A0 13 R653 A1 12 R654 A2 11 R655 A3 A4 8 R656 7 R657 A5 6 R658 A6 10 R659 A7 5 R675 RAS R676 CAS 16 1 R677 OE 4 R678 WE
100 100 100 100 100 100 100 100 100 100 100 100
A0 A1 A2 A3 A4 A5 A6 A7 RAS CAS RE WE
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
TES ADR3 ADRVdd ADM2 ADMVss ADM1 ADMVdd ADM3 P0 P1 P2 P3 IC601 P4 LC83025E Vdd3 Vss3 SIRQ SI SICK SRDY SIAK A0 A1 A2 A3 A4
J501 0
ADR1 ADRVss ADR2 ADL3 ADLVdd ADL1 ADLVss ADL2 DARVdd DADR DARVss
AG C406 330P C504 IC501 (1/2) R501 4.7/50 UPC4570HA 6 1 2 470 4 C503 R502 R503 7 33k 2200P 56k
+
AG
40 39 38 37 36 35 34 33 32 31 30 29
C507 1000P C508 33/16
IC603 (1/2) C613 R605 R601 C603 M5218AL 1500P C605 1.1k 100k 1000P R619 AG 4700P AG R612 AG 11k C608 AG R610 1.5k 91k 1/50 IC402 (2/2) C666 +5V M5218AL 6 R408 100k 1000P R686 6 R618 R614 7 R R632 C602 91k 110k 5 R604 AG 1M 7 R414 33/16 AG 1.1k 1.1k R608 3.9k 4 5 100 IC603 (2/2) C614 4 M5218AL R606 R602 C604 AG C410 33/16 1500P C606 1.1k 100k 1000P C612 4700P R620 11k 33/16 -9V AG AG AG AG -9V L610 IS1 C618 33/16 AG 2.2 C617 1/50 R625 1.5k IS2 +5V R626 R633 AG AG R684 2 R629 1.1k 8 91k C651 R622 91k R627 110k AG 1M 6 1 33/16 1.1k R624 3.9k 7 3 C622 5 ECHO 4 IC604 (1/2) R621 C615 1000P M5218AL R623 C616 100k 1000P 4700P 1.1k C620 IC604 (2/2) 33/16 M5218AL R630 AG AG AG 11k -9V AG R412 100k
+ + + + + + + +
+ C655 47/16
+
+
+
5
6
7
8
MA-990
A-b
+9V.2 +9V IC606(1/2) M5218AL C625 4700p C663 4.7/50 R637 R682 9.1k 9.1k
+
IC606(2/2) M5218AL C633 4700p R641 1 9.1k 6 8
AG
+
2 3 + C627 270p C628 270p 9V 5 + 6 IC605(2/2) M5218AL 4
+
7
C637 4.7/50
R415 6.8k
C413 100p
+
C629 100/16
+9V
R542 15k C429 33/16 R543 27k 9V AG
+
4 3
+
IC501 (2/2) UPC4570HA 2 5
+
A
JA403(1/2) MKN1024
C624 C623 2200p 2200p
R635 100k
R419 10k
R639 9.1k
5 + R643 C630 9.1k C635 +9V 100/16 180p
+
R645 100 R647 100k
2 R417 10k
R423 8 15k 1
R427 2.2k R425 100k
C417 10/50
-9V Lch Rch
C515 33/16 C516 1000P AG
R437 100 R433 100k R434 AG 100k C421 470p C422 470p R438 100 R435 100 R431 100k R432 AG 100k +9V
+
1 2 3
L LINE
FG
+
3 + R421 1k IC404(1/2) M5218AL
C415 10/50
R429 4.7k Q401 2SD2144S AG
R
4
AG
+
R640 9.1k C626 4700p
C634 4700p
C664 R638 R683 4.7/50 9.1k 9.1k +5V L602 2.2
R644 R642 9.1k 7 9.1k
C636 180p 3 + 2
R636 100k
C631 8 100/16 AG 1 R646 4 100
+
R648 100k C638 4.7/50 R416 6.8k
+
AG
AG
C414 100p R424
+
AG
R420 10k
IC605(1/2) M5218AL 9V
C632 100/16
R418 10k MIC
6 5 + R422 1k 4
15k 7
R428 2.2k
C418 10/50
AG
AG
AG C675 1000P DG2 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 29 28 27 26 25 +5V
C416 10/50 R426 100k IC404(2/2) -9V M5218AL AG
R430 4.7k Q402 2SD2144S AG
IC405 (2/4) Lch 4 IO OI 3 CI 5 IC405 (3/4) Rch 8 IO OI 9 CI 6 IC405 (1/4) 1 IO OI 2 CI 13 VCC IC405 : TC4066BP
L
5 6 FG
C419 470p C420 470p R436 100 C427 33/16
TAPE R
JA403(2/2) MKN1024
+
DARVss DALVdd DADL DALVss Vdd2 TEST5
VCC VCC J701 J702 VCC L606 2.2 C669 1000p C660 47/10 IC608 LC78815M 20 C662 CH2OUT 19 47/10 NC 18 VrefL 17 AGND 16 REFL 15 DGND 14 MODE2 13 MODE1 12 FSEL 11 TSTOUT DG1
+
IC405 (4/4) 14 AG 11 IO OI 10 CI 12 7
+
R712 47k C701 47/10 47k 47k 47k 47k
ST4
TEST3 TEST2 TEST1 TEST6 SAOF SAIF RES Vss2 Vss1 OSC2 OSC1 Vdd1 SELC FS3841 LRCKI BCKI ASI FS3840 LRCKO BCKO ASO DWAT DREAD
P4 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8 RESDSP SI SICK SIAK P0 SRDY SIRQ
R704 47k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LSEL1 17 LSEL2 18 19 20 21 DG1
C428 33/16
DG1 IC701 PDC031A 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
MTF3002 F701 C703 0.01 0.01
-9V AG
+
+
DG2 R687 100
FG
AG 1 2 3 4 5 6 7 8 9 10
33.8688MHz C661 X601 47/10 MSS1017 C670 C644 C643 1000p 1000P 13P AG DG2 C645 30P L601 1.5
+
DG2 R679 100 R680 100 R681 100 WE RE DG1 C657 C658 C659 22P 22P 22P
DG1
MIC
CH1OUT REFH VrefH AVdd LRCK DATAL DATAR BCLK SYSCLK DVdd
D3 D2 D1 D0 RAS CAS
MTF3002 F603 C672 C671 1000p 1000p DG1 DG1 DG1
AG
P00 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 1
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 3 2 DG1
R713 R714 R715 R716
C702
DG1DG1 DG1 DG1 KMI4 KMI3 KMI2 KMI1
: AUDIO SIGNAL ROUTE POWER SWITCH BOARD ASSY SW321 : POWER STANDBY/ON 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 # MAIN BOARD ASSY SW501 : MIC.3 ECOH
B
KMO3 KMO2 KMO1 IS1 IS2 LSEL4 LSEL3
76 77 78 79 80
DG1
X701 MSS3013 4MHz D2 D1 D0 RAS CAS
Large size SCH diagram
R708 C707 0.01 10k VCC IC702 M51951BSL 3 2 +9V.2 DG1 R709 2.7K RD4.3ES D702 R710 100K
+
RESDSP
A-a
A-b
C706 1/50
+
1
MIC +5V C533 R536 C532 9.1k 0.068 IC504(2/2) M5218AL AG 6 5 33p C535 1SS254 1/50 D501
+
R537 120k + 4 7 C534 33/16 R540 8.2k R539 330k
R541 47k
C708 220/10
Interrupt Det .
R711 2.7K
DG1
D701 1SS254
C
Q701 2SC2458 AG D014 1SS254 D013 1SS254 +9V D015 1SS254 R006 10K
C536 10/50
R538 100k
+
Q504 2SC2458 C012 10/50 C013 3.3/50
+
Guide page
A-a A-b
AG D012 RD16JS
+
AG R004 4.7K Q001 2SA933S R005 10K R003 22K
+
9V AG
AG
AG AG
AG INPUT.SELECT LED.DRIVE KEY.MATRIX LED.SELECT
FG D009 1SS254 D010 1SS254 D011 1SS254 R002 1M
+9V.2 L501 2.2 JKE1001 T003 +5V +9V NJM78L05A IC004 1 OUT IN 3 + COM 2
!
Q003 2SA933S
+
C014 100/25
Q002 2SC1740S
9V NJM7809FA IC001 1 OUT IN 3 COM + C004 2 47/16 + C005 47/16 3 COM 1 OUT IN 2 D001D008 : ERA1502KFRB ! D001
+ ! D002
AG
A-a
A-b
R001 FG
4.7k
! MTT1016
POWER TRANSFORMER T002 JKE1002 JKE1003 T001 5 2 3 4 1 6
C002 C001 1000/25 1000/25
C008 0.1
+
AG
AG
! D003
FG
! D004
10 9 8 7 6 5 4 3 2 1
MEP1049 CN001
1 2 3 4 5
BLK RED RED BLU BLU
C010 47/10
C007 0.1
0.1
10 11 12 8 9
Detailed page
WHT 2 BLU 1 1 2 BRN LIVE NEUTRAL BLU
!
AC 230V 50/60Hz AC POWER CORD PDG1003
9V VCC
! IC002 NJM7909FA
MDD1015
10 9 8 7 6 5 4 3 2 1
C003 1000/25
NJM7805FA ! IC003 1 OUT IN 3 COM 2 C006 47/16
+
! D005
10 9 8 7 6 5 4 3 2 1
MEP1049 CN321
15
D
C325 C324 0.01 0.01 11 2 5 C322 C323 0.01 C321 0.01 0.01 17 14 18 13 15 8 SW321 MSG1007
! D006 + ! D007
C009 0.1
10
DG1
D POWER SWITCH BOARD ASSY (MWX1076)
5 6 7
12
! D008
16
1
3 4
6
7
9
A D
8
5
B
A
D
C
6
MA-990
A-b A-a
+
+
A-a
+9V +5V C611 33/16 AG R613 110k R617 91k +9V
+
TAPE
+ +
+
AG 8 R506 100
ADR1 ADRVss ADR2 ADL3 ADLVdd ADL1 ADLVss ADL2 DARVdd DADR DARVss DALVdd DADL DALVss Vdd2 TEST5
JA501 MKN3005 R505 4.7k
1
AG C406 330P C504 IC501 (1/2) R501 4.7/50 UPC4570HA 6 2 470 1 4 C503 R502 R503 7 33k 2200P 56k C507 1000P C508 33/16
+
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
J501 0
AG
+
AG
AG
R514 +330 -9V AG
+
R516 100 4.7k C514 1800P C523 33/16 C524 1000P
D0 D1 D2 D3
R670 R671 R672 R673
C513 10/50 AG
100 2 I/O1 100 3 I/O2 100 15 I/O3 100 17 I/O4
IC602 LC32464P-80 14 R652 A0 13 R653 A1 12 R654 A2 11 R655 A3 A4 8 R656 7 R657 A5 6 R658 A6 10 R659 A7 5 R675 RAS R676 CAS 16 1 R677 OE 4 R678 WE C640 0.01 C641 0.01
+
100 100 100 100 100 100 100 100 100 100 100 100 DG2 DG2 DG2 DG2 VSS 18
A0 A1 A2 A3 A4 A5 A6 A7 RAS CAS RE WE
JA504
R517 2 470 4 C517
+9V.2 IC502 (2/2) UPC4570HA C518 4.7/50 4 1 R518 R519 C521 33/16 C522 1000P AG 2
C676 33/16
+
C677 1000P
D3 D2 D1 D0 RAS CAS
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
A5 A6 A7 A8 D7 D6 D5 Vdd4 Vss4 D4 D3 D2 D1 D0 RAS CAS
1
C409 33/16
+
1
A
+9V.2
+
MAIN BOARD ASSY (MWX1079)
L611 2.2 R611 8 91k 1
JA402 MKN1017 AG
+
1 R411 100k IC402 (1/2) M5218AL L R413 100 8 1
L
R407 100k 2
R401
1k
LD
3
2 3
C401 330P
C665 1000P C607 R609 1.5k 1/50 C650 33/16 R685 2 R631 C601 AG 1.1k AG 1M 33/16 R603 1.1k R607 3.9k 3
C 4
R
+
R402
AG
1k
JA401 (1/2) MKN1024
1
2
+ + + + +
2
R403
L
C402 330P C403 330P
1k
VCR
2 3
AG
R
R404
C 4 +5V C655 47/16
+
1k
C404 330P
JA401 (2/2) MKN1024
4
R405
L
6 5
1k
C405 330P
L602 2.2
R
R406
C425 33/16 IC401 C407 1000P TC4052BP 16 1 Y0 VDD AG 5 Y1 3 YC 2 Y2 4 Y3 12 X0 14 X1 XC 13 R409 100 15 X2 10 A 11 X3 9 B R410 100 6 VEE 7 C426 INH 33/16 VSS C408 8 1000P AG AG AG -9V +9V.2
1k
+
3
C506 1800P Q501 2SA1048 KMI3 KMI1 KMO3 6 5 R515 Q502 2SA1048 IC502 (1/2) UPC4570HA 8
3
AG C501 0.01
AG C502 0.01
AG
FG
C505 10/50
R504 330 +
IC603 (1/2) C613 R605 R601 C603 M5218AL 1500P C605 1.1k 100k 1000P R619 AG 4700P R412 AG R612 AG 11k C608 AG 100k R610 1.5k 91k 1/50 IC402 (2/2) C666 +5V M5218AL 6 R408 100k 1000P R686 6 R618 R614 R 7 R632 C602 91k 110k 5 R604 AG 1M 7 R414 33/16 AG 1.1k 1.1k R608 3.9k 4 5 100 IC603 (2/2) C614 4 M5218AL R606 R602 C604 AG C410 33/16 1500P C606 1.1k 100k 1000P C612 4700P R620 11k 33/16 -9V AG AG AG AG -9V L610 IS1 C618 33/16 AG 2.2 C617 1/50 R625 1.5k IS2 +5V R626 R633 AG AG R684 2 R629 1.1k 8 91k C651 R622 91k R627 110k AG 1M 6 1 33/16 1.1k R624 3.9k 7 3 C622 5 ECHO 4 IC604 (1/2) R621 C615 1000P M5218AL R623 C616 100k 1000P 4700P 1.1k C620 IC604 (2/2) 33/16 M5218AL R630 AG AG AG 11k -9V AG +5V F602 MTF3002
+ +
DSPVCC L608 2.2 C656 C654 C653 47/16 0.01 0.01 DG1 DG1 DG1 DG1 C673 33/16 DG2 C674 1000P
AG
VCC
JA502 MKN3006
DG1 R507 10k
R508 10k
TEST4 ADR3 ADRVdd ADM2 ADMVss ADM1 ADMVdd ADM3 P0 P1 P2 P3 IC601 P4 LC83025E Vdd3
6 5 4 2 3 7 8 9 1
R509 47k R510 47k
C509 0.01
C510 0.01
FG
JA503 MKN3005
1
R511 2 470 4 C511 2200P
FG C512 4.7/50
DG1
VCC L605 F601 2.2 MTF3002
C642 33/16 9
4
4
R512 R513 7 33k 56k
+
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Vss3 SIRQ SI SICK SRDY SIAK A0 A1 A2 A3 A4
TEST3 TEST2 TEST1 TEST6 SAOF SAIF RES Vss2 Vss1 OSC2 OSC1 Vdd1 SELC FS3841 LRCKI BCKI ASI FS3840 LRCKO BCKO ASO DWAT DREAD
DSPVCC DG2 L603 2.2
+
+
R514 +330 DSPVCC DG2
D3 D2 D1 D0 RAS CAS
1800P C523 33/16 C524 1000P AG
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
C513 10/50 AG -9V
+
D0 D1 D2 D3 A4 A5 A6 A7 RAS CAS OE WE L603 2.2 C676 33/16 DG2 DG2 DG1 DSP,CONTROL DG2
+
R670 R671 R672 R673 8 7 6 10 5 16 1 4 C677 1000P R656 R657 R658 R659 R675 R676 R677 R678 A4 A5 A6 A7 RAS CAS RE WE 100 100 100 100 100 100 100 100
100 2 I/O1 100 3 I/O2 100 15 I/O3 100 17 I/O4
+
JA504 MKN3005
P0 P4 SIRQ SI SICK SRDY SIAK
1
R517 2 470 4 C517 2200P VSS 18
AG
5
SW501 MSG3005
+
R528 33k C528 33P
+
C529 33/16 AG 2 8
+
+
MIC1 MIC2 MIC3 MIC3 MIC1,2 ECHO ECHO R L R AG L
KMI1 KMI2 KMI3 KMI4 KMO1 KMO2 KMO3 LSEL1 LSEL2 LSEL3 LSEL4
LED1 LED2 LED3 LED4 LED5 LED6 LED8
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 10 11 12
MDD1016
1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11
MDD1019 CN201 MEP3015
1 2 3 4 5 6 7 8 9 10 11
MDD1018
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
C011 0.1
DG1
23 22 21 20 18 19 A B C D D202 D203 D204 D205 D206 D207 D218 G1 G2
R301 3.3k 2 3 R303 3.3k 2 1 3 2 1 3 5 2 1 1 4 6 3
R302 3.3k 2 1 3
SW SW SW SW 201 202 203 204 SUR VOCE VOCP OTK
POWER
VCC
R201 330
330 330 270 270 330
AG VSS 12
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17
IC201 C201 0.01 VDD TC74HC154AP 24 +
D201 VCC
C010 47/10
R202 R203 R204 R205 R206
B
SW 209 SW 210 N
4 3 2 1 N #1 #2 #3 #4
D209 D210 D211 D212 D213 D214 D215 D216 D217
VOLUME BOARD ASSY (MWX1078)
SW 211 #
R208 330
D201,206,207,218 :SLR-342VC D202,203,205, :SLR-342MC D209-212,214-217 D204,213 :SLR-342DC SW201-206,208-211 : MSG3006
C
FRONT BOARD ASSY (MWX1077)
SUR VOLE VOLP OTK LD TAPE VCR
5
2 +9V.2 R532 10k 1 3 IC503 (2/2) M5218AL
+
AG C550 0.01 1 3 +9V.2
+9V.2 C521 33/16 IC502 (2/2) C522 UPC4570HA 1000P C518 4.7/50 4 AG 1 2 R518 R519 3 33k R522 56k R521 100 AG 4.7k R520 C520 C519 +330 1800P 10/50 C527 33/16 R535 33k 8 1 3 R534 220 AG IC504 (1/2) M5218AL AG MIC
FG 5 6 7 5 MIC3 MIC1,2 R527 220 C537 33/16 -9V AG AG ECHO INPUT.SELECT KEY.MATRIX LED.SELECT AG JA701 MKP1022 VCC JA702 MKP3007 AG R531 220 4 IC503 (1/2) M5218AL R529 100 R530 10k 4 6 C531 C530 R533 10/50 2 10/50 33k
AG
R 9
6
SW 205 LD SW 206 TAPE SW 208 VCR DG1 C202 1/50
6
+9V.2 DG1 +5V L5 2 NJM7 IC0 1 OUT + CO CN202 VCC MEP3010 VCC
JA505 MKP1019
CN301 MEP3009
7 C
7
VR301 VR302 VR303 VR304 VR305 10k(B) 10k(B) 10k(B) 10k(B) 50k(B) MCS3002 MCS3002 MCS3002 MCS3003 MCS1014 MIC1 MIC2 MIC3 ECHO MUSIC
DG1 VCC
DG1
8
A-a B C
A-b A-a
MA-990
8
7
B
D
A
B
A
D
C
8
MA-990
A-b A-a
+
IC606(1/2) M5218AL 5
+ +
+
C633 4700p
C625 4700p
C663 4.7/50 R637 R682 9.1k 9.1k 7 AG -9V Lch Rch IC405 (2/4)
+
+
R635 100k
R419 10k
A-b
+9V.2 +9V IC606(2/2) M5218AL C629 100/16 AG C637 4.7/50 R415 6.8k 9V C417 10/50
+
+
R636 100k
C624 C623 2200p 2200p
AG AG
+
R640 9.1k 6 C638 4.7/50 R424
+ +
+
C628 270p 9V 5 + R648 100k AG R416 6.8k AG 6
R420 10k
R421 1k
C626 4700p
C634 4700p
R422 1k
AG AG
C416 10/50 R426 100k IC404(2/2) -9V M5218AL AG 4 AG
Q402 2SD2144S
IC405 (1/4) 1 IO OI 2 CI 13 VCC IC405 : TC4066BP
C701 47/10
33 32 31 30 29 28 27 26 25
C675 1000P +5V VCC
J701 J702
VCC VCC L606 2.2 P4 R704 47k DG1 IC701 PDC031A R712 47k
47k 47k 47k 47k
C427 33/16 IC405 (4/4) 14 AG 11 IO OI 10 CI 12 7
+ +
ADLVss ADL2 DARVdd DADR DARVss DALVdd DADL DALVss Vdd2 TEST5
+
C702
0.01
R687 100
+
IC608 LC78815M
R713 R714 R715 R716
DG2
FG
AG
C703
0.01
33.8688MHz C661 X601 47/10 MSS1017 C670 C644 C643 1000p 1000P 13P AG DG2 C645 30P L601 1.5
+
MIC
Vdd4 Vss4 D4 D3 D2 D1 D0 RAS CAS
72 73 74 75 76 77 78 79 80
677 000P
D3 D2 D1 D0 RAS CAS
1
+9V C413 100p C429 33/16 R543 27k C515 33/16 C516 1000P AG R542 15k 3 4 IC501 (2/2) UPC4570HA 2 2 3 + 4
+
1
R641 1 9.1k 6 5 + 2 + IC404(1/2) M5218AL AG Q401 2SD2144S R425 100k C415 10/50 R429 4.7k R417 10k 3 R427 2.2k R645 100 R647 100k R423 8 15k 1 8
R437 100 R433 100k R434 AG 100k C421 470p C422 470p
1 2 3
JA403(1/2) MKN1024
L LINE
FG
R639 9.1k C627 270p C630 100/16 R643 9.1k C635 +9V 180p
R
R438 100 R435 100 R431 100k R432 AG 100k C419 470p C420 470p 4
2
C636 R644 180p R642 9.1k 3 + 7 9.1k 2 C414 100p C631 8 100/16 AG 1 R646 4 100 C632 100/16 R418 10k 5 + MIC 15k 7 R428 2.2k C418 10/50
+
2
C664 R638 R683 4.7/50 9.1k 9.1k IC605(2/2) M5218AL 9V AG IC605(1/2) M5218AL
L
5 6 +9V R436 100 FG
TAPE R
+5V
C655 47/16
L602 2.2
R430 4.7k
Lch 4 IO OI 3 CI 5 IC405 (3/4) Rch 8 IO OI 9 CI 6
JA403(2/2) MKN1024
+
DG2
3
C669 1000p C660 47/10 1 2 3 4 5 6 7 8 9 10 CH1OUT REFH VrefH AVdd LRCK DATAL DATAR BCLK SYSCLK DVdd AG 20 C662 CH2OUT 19 47/10 NC 18 VrefL 17 AGND 16 REFL 15 DGND 14 MODE2 13 MODE1 12 FSEL 11 TSTOUT DG1 DG1 MTF3002 F603 C672 C671 1000p 1000p DG1 DG1 DG1 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8 RESDSP SI SICK SIAK P0 SRDY SIRQ P00 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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LSEL1 17 LSEL2 18 19 20 21 DG1 3 2 DG1 1 X701 MSS3013 4MHz
3
d
TEST4
C428 33/16 MTF3002 F701
+
-9V AG
: AUDIO SIGNAL ROUTE DG1DG1 DG1 DG1 KMI4 KMI3 KMI2 KMI1 POWER SWITCH BOARD ASSY SW321 : POWER STANDBY/ON
601 C83025E
KMO3 KMO2 KMO1
4
4
TEST3 TEST2 TEST1 TEST6 SAOF SAIF RES Vss2 Vss1 OSC2 OSC1 Vdd1 SELC FS3841 LRCKI BCKI ASI FS3840 LRCKO BCKO ASO DWAT DREAD
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 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
DG2 R679 100 R680 100 R681 100 WE RE
DG1 C657 C658 C659 22P 22P 22P
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
IS1 IS2 LSEL4 LSEL3
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 # MAIN BOARD ASSY SW501 : MIC.3 ECOH DG1
DG2
72 73 74 75 76 77 78 79 80
DG1 3 2 DG1 DG1
DG2
1 X701 MSS3013 4MHz
677 00P RESDSP R708 VCC C707 0.01 IC702 M51951BSL 3 10k
D3 D2 D1 D0 RAS CAS
+
5
C706 1/50
D701 1SS254
R536 C532 9.1k 0.068 Interrupt Det .
+ +
R537 120k C708 220/10 R710 100K AG R004 4.7K D013 1SS254 Q001 2SA933S R005 10K R003 22K AG +9V R006 10K 7
+
R541 47k C535 1SS254 1/50 D501 R540 8.2k R539 330k Q504 2SC2458 AG C012 10/50
+ +
RD4.3ES D702 Q701 2SC2458
6 R538 100k C536 10/50
5
+
IC504(2/2) M5218AL C534 33/16 C013 3.3/50 D012 RD16JS AG INPUT.SELECT LED.DRIVE R002 1M KEY.MATRIX LED.SELECT FG D014 1SS254 AG AG AG
+
4
AG
Q002 2SC1740S
D011 1SS254
+9V.2 9V R001 JKE1001 T003 FG 10 11 12 8 9 15 MEP1049 CN321 4.7k
D009 1SS254
D010 1SS254
L501 2.2
AG
+5V
+9V D001D008 : ERA1502KFRB ! D001
+ ! D002
!
C011 0.1
C010 47/10
C007 0.1
NJM78L05A IC004 1 OUT IN 3 + COM 2
+ ! D003
! MTT1016
POWER TRANSFORMER 5 2 3 4 1 6 WHT 2 BLU 1
C014 100/25
+
D015 1SS254
9V AG
R711 2.7K
T002 JKE1002
C002 C001 1000/25 1000/25
AG FG
! D004
C008 0.1
AG 10 9 8 7 6 5 4 3 2 1 MEP1049 CN001
NJM7809FA IC001 1 OUT IN 3 COM + C004 2 47/16 + C005 47/16 3 COM 1 OUT IN 2 1 2 3 4 5 BLK RED RED BLU BLU MDD1015 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1
JKE1003 T001
C009 0.1
C006 47/16
C003 1000/25
2
5
11
8
1
3 4
6
7
9
16
17
10
12
DG1
D POWER SWITCH BOARD ASSY (MWX1076)
8
18 13
! D008
15
14
+
5
MIC +5V DG1 33p Q003 2SA933S 1 2 BRN LIVE NEUTRAL BLU
! D005 ! D006 +
1 2 +9V.2 DG1 R709 2.7K
C533
6
C325 C324 0.01 0.01
! D007
6
!
AC 230V 50/60Hz AC POWER CORD PDG1003
9V
! IC002 NJM7909FA
VCC
!
7 C
7
NJM7805FA IC003 1 OUT IN 3 COM 2
C322 C323 0.01 C321 0.01 0.01
SW321 MSG1007
A-b D
A-b A-a
MA-990
8
9
B A
D
1
2
3
4
MA-990
4. PCB CONNECTION DIAGRAM
4.1 MAIN BOARD ASSY
A IC404 IC401 IC606 IC405 Q402 Q401 IC605 IC003 IC002 IC602 IC001 IC004 Q001 Q002 Q003
A MAIN BOARD ASSY
JP
JP
B
C
To AC POWER CORD
LIVE NEUTRAL
To POWER TRANSFOMER
D
D CN321
9
8
12
11
10
To POWER TRANSFORMER
10
A
1
2
3
4
5
6
7
8
MA-990
IC603 IC604 Q003
Q504 IC701
IC402 IC503 IC504 IC702
IC502 IC501 Q701
A
JP
B
C
C CN202
C CN201
Capacitor
B CN301
NOTE FOR PCB DIAGRAMS :
SIDE A
1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. 3. View point of PCB diagrams.
Connector
SIDE A
D
P.C.Board
Chip Part
SIDE B
5
6
7
A
8
11
1
2
3
4
MA-990
A
A MAIN BOARD ASSY
B
C
C550
D
J501
SIDE B
12
A
1
2
3
4
5
6
7
8
MA-990
A IC601 IC608
B
C
D
A
5 6 7 8
13
1
2
3
4
MA-990 4.2 POWER SWITCH BOARD, FRONT BOARD AND VOLUME BOARD ASSEMBLIES
A
C FRONT BOARD ASSY
A CN001
B VOLUME
BOARD ASSY
A JA701
B
D POWER
SWITCH BOARD ASSY
A JA505
C
A JA702
VR301-VR305 D
SIDE A
14
B C D
1
2
3
4
1
2
3
4
MA-990
C FRONT BOARD ASSY B VOLUME
BOARD ASSY
D POWER
A
SWITCH BOARD ASSY
B
Note : · A comparison between the main parts of PCB and schematic diagrams is shown below.
P.C.B pattern Diagram Indication Corresponding Part Symbol Part Name
or E E
Transistor
C
Diode Zenner diode
Resistor
Capacitor (Non polarized) Capacitor (Polarized)
NP NP
Capacitor (Non polarized)
D
SIDE B
1
2
3
B C D
4
15
MA-990
Mark No. Description Part No. Mark No. Description Part No.
4. PCB 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. · When ordering resistors, first convert resistance values into code form as shown in the following examples.
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%). 561 ........................................................ RD1/4PU 5 6 1 J 560 56 × 101 473 ........................................................ RD1/4PU 4 7 3 J 47k 47 × 103 0.5 R50 ..................................................................................... RN2H R 5 0 K 1 1R0 ..................................................................................... RS1P 1 R 0 K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5621 ...................................................... RN1/4PC 5 6 2 1 F 5.62k 562 × 101
Mark No.
NSP NSP NSP
Description
Part No.
MWM1038 MWX1076 MWX1077 MWX1078 MWX1079
Mark No.
Description
Part No.
CEA102M25L2 CEA470M16L2 CKSQYF104Z50 CEA470M10L2 CEA100M50L2 CEA100M50L2 CEA3R3M50L2 CEA101M25L2 CCSQCH331J50 CCSQSL102J50 CCSQSL102J50 CCSQSL102J50 CEA330M16L2 CEA330M16L2 CEA330M16L2 CEA330M16L2 CCSQCH101J50 CCSQCH471J50 CKSQYB103K50 CKSQYB103K50 CKSQYB222K50 CEA4R7M50L2 CEA4R7M50L2 CKSQYB182K50 CCSQCH330J50 CKSQYB683K50 CEA1R0M50L2 CKSQYB472K50 CKSQYB472K50 CCSQSL152J50 CCSQCH181J50 CEA101M16L2 CCSQCH271J50 CCSQCH130J50 CCSQCH300J50 CCSQCH220J50 CEA221M10L2 RD1/10S0R0J RD1/10S0R0J RS1/10S J
LIST OF ASSEMBLIES
MOTHER BOARD ASSY POWER SWITCH BOARD ASSY FRONT BOARD ASSY VOLUME BOARD ASSY MAIN BOARD ASSY
CAPACITORS
C001-C003 C004-C006,C655,C656 C007-C009,C011 C010,C660-C662,C701 C012,C415-C418,C505,C513 C519,C530,C531,C536 C013 C014 C401-C406 C407,C408,C507,C516,C522,C524 C603,C604,C615,C644,C652,C665 C666,C669-C672,C674,C675,C677 C409,C410,C425-C429,C508,C515 C521,C523,C527,C529,C534,C537 C601,C602,C611,C612,C618,C620 C642,C650,C651,C673,C676 C413,C414 C419-C422 C501,C502,C509,C510,C550,C640 C641,C653,C654,C702,C703,C707 C503,C511,C517,C623,C624 C504,C512,C518,C637,C638 C663,C664 C506,C514,C520 C528,C533 C532 C535,C607,C608,C617,C706 C605,C606,C616,C625,C626 C633,C634 C613,C614 C635,C636 C629-C632 C627,C628 C643 C645 C657-C659 C708
A MAIN BOARD ASSY
SEMICONDUCTORS
IC001 IC002 IC003 IC004 IC401 IC402,IC404,IC503,IC504 IC603-IC606 IC405 IC501,IC502 IC601 IC602 IC608 IC701 IC702 Q001,Q003 Q002 Q401,Q402 Q501,Q502 Q504,Q701 D001-D008 NJM7809FA NJM7909FA NJM7805FA NJM78L05A TC4052BP M5218AL M5218AL TC4066BP UPC4570HA LC83025E LC32464P-80 LC78815M PDC031A M51951BSL 2SA933S 2SC1740S 2SD2144S 2SA1048 2SC2458 ERA15-02KFRB
D009-D011,D013-D015,D501,D701 1SS254 D012 RD16JS D702 RD4R3ES
COILS AND FILTERS
L601 L501,L602,L603,L605,L606,L608 L610,L611 F601-F603,F701 LAU1R5J LAU2R2J LAU2R2J MTF3002 MSG3005
RESISTORS
J501,J601-J603,J606 J607,J610-J612 All Resistors
SWITCH
SW501
16
MA-990
Mark No. Description Part No.
MNP1063 MEP1049 MKN1024 MKN1017 MKN3005 MKN3006 MKP1019 MKP1022 MKP3007 MSS1017 MSS3013 JKF1009 JKE1003 JKE1002 JKE1001 MDB1023 MDB1024
Mark No.
Description
Part No.
OTHERS
NSP PCB CN001 CABLE HOLDER JA401,JA403 JACK JA402 JACK JA501,JA503,JA504 MIC JACK JA502 JA505 JA701 JA702 X601 X701 T001 T002 T003 JACK CONNECTOR CONNECTOR CONNECTOR RESONATOR (33.8688MHz) RESONATOR (4MHz) EARTH TERMINAL TERMINAL TERMINAL TERMINAL CORD CORD
D POWER SWITCH BOARD ASSY
CAPACITORS
C321-C325 CKSQYB103K50 MSG1007 PCB PARALLEL CORD CABLE HOLDER MNP1066 MDD1015 MEP1049
SWITCH
SW321
OTHERS
CN321
B VOLUME ASSY
RESISTORS
VR301-VR303 (10k-B) VR304 (10k-C) VR305 (50k-B) R301-R303 MCS3002 MCS3003 MCS1014 RS1/10S332J MDD1016 MNP1065 MEP3009
OTHERS
CN301 PARALLEL CORD PCB CABLE HOLDER
C FRONT BOARD ASSY
SEMICONDUCTORS
IC201 D201,D206,D207,D218 D202,D203,D205,D209-D212 D214-D217 D204,D213 TC74HC154AP SLR-342VC SLR-342MC SLR-342MC SLR-342DC MSG3006 CKSQYB103K50 CEJANP1R0M50 RS1/10S271J RS1/10S331J MNP1064 MDD1018 MDD1019 MEP3015 MEP3010
SWITCHES
SW201-SW206,SW208-SW211
CAPACITORS
C201 C202
RESISTORS
R204,R205 R201-R203,R206,R208
OTHERS
NSP CN201 CN202 PCB PARALLEL CORD PARALLEL CORD CABLE HOLDER CABLE HOLDER
17
MA-990
5. IC INFORMATION
· The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
TC74HC154AP (FRONT BOARD ASSY : IC201)
· Line Decoder
·Pin Assignment (Top View)
·Truth Table
Input Pin No. 18 19 G2 L L L L L L L L L L L L L L L L H X 20 D L L L L L L L L H H H H H H H H X X 21 C L L L L H H H H L L L L H H H H X X 22 B L L H H L L H H L L H H L L H H X X 23 A L H L H L H L H L H L H L H L H X X Selected Pin Output (L) No. Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15 NONE NONE 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17
Y0 1 Y1 2 Y2 3 Y3 4 Y4 5 Y5 6 Y6 7 Y7 8 Y8 9 Y9 10 Y10 11 GND 12
24 23 22 21 20 19 18 17 16 15 14 13
Vcc A B C D G2 G1 Y15 Y14 Y13 Y12 Y11
G1 L L L L L L L L L L L L L L L L X H
X : Don't care
·Block Diagram
G1 G2
18 19 1 2 3 4
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15
A
23
5 6 7
B
22
8 9
C
21
10 11 13
D
20
14 15 16 17
18
MA-990
LC32464P-80 (MAIN BOARD ASSY : IC602)
· 256k (65536 word × 4 bits) DRAM
·Pin Assignment (Top View)
OE 1 I/O1 2 I/O2 3 WE 4 RAS 5 A6 6 A5 7 A4 8 VCC 9 18 Vss 17 I/O4 16 CAS 15 I/O3 14 A0 13 A1 12 A2 11 A3 10 A7
·Block Diagram
RAS CAS
5
Clock generator No.1
9
VCC Vss WE
16
Clock generator No.2 Mode control Clock generator No.3
(256)
18
4
Refresh counter
Low decoder
262144 bit memory cell
(256 × 4)
A0 A1 A2 A3 A4 A5 A6 A7
14 13 12 11 8 7 6 10
Low address buffer
Data input buffer
2 3
I/O1 I/O2 I/O3 I/O4 OE
Sense amplifier I/O gate
(256 × 4)
Data output buffer
15 17 1
Column address buffer
Column decoder pvi decoder
PCB Bias generator
M51951BSL (MAIN BOARD ASSY : IC702)
· System Reset
·Pin Assignment
M51951BSL
1 2 3
·Block Diagram
1
R1 3
R2 1.25V 2
NJM7909FA (MAIN BOARD ASSY : IC002)
· Voltage Regulator
·Pin Assignment
3
2
1
19
MA-990
PDC031A (MAIN BOARD ASSY : IC701)
· 4 bits 1 chip Micro-computer
·Pin Assignment (Top View)
P00 P01 P02 P03 P10 P11 P12 P13 SI0/P20 SO0/P21 SCK0/P22 INT0/P23 INT1/P30 POUT0/P31 POUT1/P32 HOLD/P33 P40 P41 TEST Vss OSC1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
·Block Diagram
RES 23 TEST 19 OSC1 21 OSC2 22 HOLD 16 TRA 41 TRB CMP0 CMP1 CMP2 CMP3
42 36 37 38 39 PC PD PE
PE1/TRB PE0/TRA VDD PD3/CMP3 PD2/CMP2 PD1/CMP1 PD0/CMP0 PC3/Vref1 PC2/Vref0 P63/PIN1 P62/SCK1 P61/SO1 P60/SI1 P53/INT2 P52 P51 P50 P43 P42 RES OSC2
SYSTEM CONTROL
RAM STACK (512M) FLAG
E D D DD SP M P P P P R H L XY
ROM 4k C Z E A ALU PC
14 POUT0 9 SI0 10 SO0 11 SCK0 12 INT0 13 29 INT1,INT2
PRESCALER MPX INTERRUPT CONTROL
MPX
TIMER0
SERIAL I/O 0
MPX
TIMER1
SERIAL I/O 1
30 SI1 31 SO1 32 SCK1 33 15 PIN1,POUT1
P0
P1
P2
P3
P4
P5
P6
LC83025E (MAIN BOARD ASSY : IC601)
· Karaoke Digital Signal Processor
·Pin Assignment (Top View)
72 VDD4 73 VSS4 80 CAS 79 RAS 78 D0 77 D1 76 D2 75 D3 74 D4 71 D5 70 D6 69 D7 68 A8 67 A7 66 A6 65 A5
·Block Diagram
Sequence Control Program ROM Program Counter Loop Counter M-bus Audio Input 1 (Digital) Audio Input 2 (Analog) ADC (L ch) ADC (R ch) ADC (MIC) Audio Output 1 (Digital) Audio Output 2 (PWM) DAC (L ch) DAC (R ch) DRAM Interface TMP0-7 µP Interface LIFO Data RAM Coeff. RAM Coeff. RAM
DREAD 1 DWAT ASO BCKO LRCKO FS3840 ASI BCKI LRCKI FS3841 SELC VDD1 OSC1 OSC2 VSS1 VSS2 RES SAIF SAOF TEST6 TEST1 TEST2 TEST3 TEST4
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
64 A4 63 A3 62 A2 61 A1 60 A0 59 SIAK 58 SRDV 57 SICK 56 SI 55 SIRQ 54 VSS3 53 VDD3 52 P4 51 P3 50 P2 49 P1 48 P0 47 ADM3 46 ADMVDD 45 ADM1 44 ADMVSS 43 ADM2 42 ADR3 41 ADRVDD
Program Decoder
S-bus
MUL ALU/Shifter
ACC
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
TEST5 VDD2 DALVSS DADL DALVDD DARVSS DADR
20
DARVDD ALD2 ADLVSS ADL1
ADLVDD ADL3 ADR2 ADRVSS
ADR1 40
MA-990
6. PANEL FACILITIES AND SPECIFICATIONS
PANEL FACILITIES
SPECIFICATIONS
21