Pioneer MA-990 User manual

d) PIONEER’
The Art of Entertainment
Service
ORDER NO.
TRT1121
MIC.MIXER
MA-990
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
CONTENTS
1. EXPLODED VIEWS AND PARTS LIST.............. 2
2. SCHEMATIC DIAGRAM .....0.... 00. cece eee 4
3. PCB CONNECTION DIAGRAN ............e eee 10
4. PCB PARTS LIST ... ‘air 6:
5. IC INFORMATION |... ee eee ere eee 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
© PIONEER ELECTRONIC CORPORATION 1997 ' ,
O-1ZC 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
A,
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 W mark on the product are used for disassembly.
@
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
T
evens
24
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
24
16
sees
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
BBZ30PO60FZK
22
30
Screw
BBZ40PO60FZK
31
weeee
32
Display
Panel
MAH1015
33
Screw
ATZ30P080FMC
B4
cseee
35
Screw
BBZ30P100FZK
36
Screw
BBZ30P060FMC
37
Pad
MHA3013
38
eeeeoe
39
Panel
MNK1196
40
Poly
Bag
PO230x340x0.05A
41
Connector
MDF1024
42
Connector
MDF1019
43
Warranty
Card
ARY7008

MA-990
@
EXPLODED
VIEW

MA-990
3.SCHEMATIC DIAGRAM
Note : When ordering service parts, be sure to refer to
"EXPLODED VIEWS and PARTS LIST” or "PCB PARTS LIST".
49
| EQ main Boarp assy (mwx1079) sy
+9OV
JA402 9
MKN1017
C409
aa16
i
.
VAG
C425 33/16 +) rst H R617
C407 1000P 100k Icag2(12) | c6o1 AG 91k
ra
AG
MS5248AL
Tw
3
R407
100k
C613
Ww very T1500P_
Kes
R412
100
AGY
Rér9
tg 300K 402 (22) AG 1/50, ¢g* _F910 15k 91k
R409 100 R08 Yo04l Me218AL.
10
WY
REIS
19 otk
Rao 100 ae > ma
7, at C426 1803 (2/2)
si6 cato aaite Reoe csos LL MS218AL aCe
408.
“
}a700P
F612
A620
1
|
‘
(000!
-gy
AG
S316
+
MG
AG AG AG
aa
eo
cess,
-9V ist Cel? 150 tay 0618 33/16 AG 22 47116
Le
49V.2
1S2
Cor
ean
R625
1.5k
bees
|
|
a
ae: Fog z eee
1¢501 (1/2) 507 1000P G +
R01
C504,
Up
cas7oHA
508
33/16
WSBFAASNIS
SS}
a
§
_
Af
180s
(1/2)
|
C622
SONOS
BVecy
JA5OL
'R622T
C816!
MS218AL
TF
1000P
Beh
aSasa59s
+
aaa
29
222A
ese
MKNgOoS
1C804
(2/2)
1.1
4
700P
620
ste
OB"
2
2
8°S
MS216AL AG AG AG a6. BES. 4) ADRS SADRVd TE!
R504 -9V AG aa] AONE.
01 TT 0.01 380 45 ee
' 0505 3 1800P ADMi
10/50 +5V OSAYCC se ADMVed
|
FG
nG
+
reas
ADM3
—
9501
MTF3002
PO
'
=
tet
C656 CBSA C653 ay] P2
| 476 | 0.01 Toor 4st] Sips men
P4
JA5O2
0G1_DG1
DG1 Oct
Vas
LC83025E
MKN3006
F509
47k
4
yess
| R510 47k gi
sick
1
0.01
q
0.01
FG+
+FG
502
VCE
L605
F601
cea2
|
Rei.
0512
me
BSNS
©
2.2
MTF3002
33/16
1602
i
47150
(C592
(1/2)
me
=
—]9_LOS2464P-80
r 14_ R652, 100
#503../] 13R653.yr 100 Al
MKN3005
R516
AM
% ya np [12654 yy, 100 AP 33
TF} C514 11 F698 yyy, 100_ AS VQVBVSSSSSSG
1800P
C528 39/16
' 513 Le €524 100°
10/50
| mt Lis
1 Je 02 (2/2)
|,
B37
cste.a7100"
Too
470 i
vAs04
mnsoos LL
| R520 C520 hd
1 Tees 519 $,330 —-1800P f
10/50 &
FG o
|
AG
swsot
'
t
MSG3005,
'
MICS _ ay, 1C503 (2/2) 1504 (1/2)
i 1 Mict.2 220 M5218AL MB2iBAL
' —— ie
| 40 EQHO
INPUT.SELECT
' —t
KEY.MATRIX
LED.SELECT
’
|
“7
10K(B) — 10K(B)—10K(B}—-10K(B)_—S0K(B}
MCS3002 MCS3002 MCS3002 MCS3003. MCS1014
Mict. MIC2 = MIC3-— «ECHO MUSIC
1
’
R301 -:VR302.—««VA303.-««VR304-:VR305 |
1
'
VOLUME BOARD ASSY
(MWX1078) |
——
D201,208,207,218 -SLR-342VG
202,203,208, :SLR-342MC
0209-212.214-217
9204213 SLA-3420

+9V.2
1C901
(2/2)
+
UPC4570HA
R542.
+,
15k
4808(1/2)
Ics0822)F
CBS
+
1
C429
M5218AL_
M5218AL
10016
+3316
F543:
JAg03(1/2)
A
#
ame
R437
MKN1024
vv
cat?
10/50,
LINE
rot
Q401
asb21448
3s
AG
8
Tes
TAPE
+
48V
*
1660522)
1605(1/2)
peal
M5218AL_
M52t8AL
WA
4
R430
47k
JA403(2/2)
Mic.
Sx
$
icgoa(ar2)
]
100k
W—©
‘MKN1024
AG
JE”
-ov
Ms218AL
402
x
AG
2sD2144S
AG
vec
VCC
vec
1
J
eo
?
>
C&IAz2
vec
3
oa
BS
mrrsooz
Ps
Ate
pat
ele
§5
F701
ss
eo
aley
gle
Sys
}
8s
AUDIO
SIGNAL
ROUT!
DG1DG10G1
BG1
egos
7
KMi4
'
i662
B
[emia
POWER
SWITCH
BOARD
ASSY
NC
H
47/10)
PO
TeME!
Km)
SW321
:
POWER
STANDBY/ON
)
[eit
FRONT BOARD
ASSY
Boa
Ba
1
swa201
:
SURROUND
SIDATAL
DGNO}
a
W202
:
CHORUS
gJOATAR
MODE?
$W208
:
VOG.P.
GJECkK
MODE!
a
2.
1
SW204:
ONE
TK,
FS3640
TO
eet
H
W205
:
INPUT
SELECTOR?
LRCKO
o)
|
$w206
:
INPUT
SELECTOR
BCKO
DGt
5|
$208
;
INPUT
SELECTORS/TAPE
ASQ
MTF3002
AG
¥
-SW209:
KEY
CONTROL
b
Swart
F603
W210:
KEY
CONTROL
DREAD
uf
cs72
ari
SW2t1
:
KEY
CONTROL
#
061
1000p
“f
J1000
16
algB
BBE” SES?
See
G1 G1
OG!
Pmureheppean
ede
Hels
22P
22P
2aP
SW501
:
MIC.3
EGOH
RP
|
i
.
Large
size
ili
SCH
diagram
'
E208
lk
vec
'
Ludud
E
Bs]
ic7o2
|
&
S|
ms1951Bs.
|
sght
Tp
Mic
g8
49V.2
'
>
°
G1
R709
+
+5V
Gai
33a
ce
ne
:
R586
C532
47%
p
iz
G1k
0.068
|
¢
$835
185354
exo
interrupt
Det
|
pw
oe
501
2
BRP)
504
'
1o504(2/2)
2]
+
ag
extol,
lo,
Se
2802458
wsateat
[|
534
BS:
8
Sm
2S
|
gous
S"]OF|
Fes
r+—$+
3
as
Y
oe
v
S8y
128
pois
]§
svt
wv
AS
AG AG AG AG
ge
82
188254
|B
FG
x
z
INPUT.
SELECT.
=
S
ard
LED.DRIVE
Par
Pe
8
Sef
KEY.
MATRIX
BLS
g
2002
i
LED.SELECT
gtk
28017408
Oa
Ee
|
=
HES
49V.2
8}3l
8
2sasa3s
|
SE
t
AG
|
eV
45V
‘“
Do01-Doos
ROO}
4.7k
f
NUN
GROOFA
ERA15-O2KFRE
Aboot
3
|
=
te
‘J
4
Sat
SS,
boo2
a!
Sep
Ace
ss
|
=
ae
2.
=
ue
gS
Apoos|
|
1
[es
SE,
sey
A
AG
8
oo
|
2
4
C
AC
230V
Acts
PNEUTRAL
50/60Hz
by
A
icoe
;
T
BLU
NJM7909F
A
7
J
AG
POWER
CORD
vee
NUM7805FA
|
eo
PDG
1003
C003.
A
Hour
IN
De
.
|
|
'
=
Adoos
|
g-
3e
;
A,
0007
|
'
a
Adoos
id
|
>
DGt
|
'
|
POWER
SWITCH
BOARD
ASSY
1
See
a
Ss
ee
(MW
ONO)
et

MA-990
z uo yusvt
ooo
osid'r'81g0
|
299193
eso
+
vHozsroan
:
|
dSvo
QVEE
1250
Z-ygiy
(/2)
Z0SOI
‘a
Sv
ov
Syy
oor
cious
9
Su4
ov.
As
|
2¥_ool
yr
659801]
5%
OLY
E7ou
6d
Ogio}
S¥_OOLywasoH
9
oOLweiou
2G
40001
2S9
oee*t
8189
i
Sv_O0L
yy
£604
Z
OLY
IZ
_1d
Q1/Ee
E269
bv
001
Mr
ossu
z
00!
“09H
00
za
290
290
290
H
SOOENYN
roof
t
100
a
soswr
08-dpgrzeo1
6
+p
tv99
o0.
vio
rod
8
ogi'r
oly
©
.
v
20891
vee
zooedln
v2
d
plea
zisg
«SSH
299
1094
$091
55,4,
byes,
190
Bae
oy
SOWN
oot
10°0
i
'
0150 *F60s0 re7] |
TAT
xe
OSE
a
Zr
6OSY
9008NHW
zosve
SZ0E8O)
rogiod
9a
15a
YOL
vor
Te
|
ee
|
1890
oot
T
£
100
f
ower
gosy
$4054
38
cee
|
e907
7590
#
9990
ci
epolvse
#
j}o
8
i:
i
2004.1
080)
OA
|
2094
'
S
od
o0Adsa
Us
0g/01
d00st
gee
10°0
oo
|
Ov
AG
vost
LL
ogg
Wwelzsw
Cr)
(2/2) v0991 SOOSNYW
W8teSN
|,
e0sy
boswe
(Zit)
vO901
$
ogi"
gue
80S9
vHozsroan
See
4000!
209
(2/1)
4089)
ov
give
8190
NG
|
ov ov OV
aves
ASE
eat
5039
|
11-1
g-uo00:
¥00:
consi
WelZSW
|p
‘p0902
cOSH
SUE
OLD
; (2/2) £0901 4 8 ‘1
Wv- LL ow * glee
,
46
09H
>
2099
vive
a
‘A000!
ast
“9g99
qweizsw
M16 SE 019M sft ov (2/2) Z0vO! HOO" Gi
bh zieu 8099 ‘ ov
sia
onerT
ov
4.
v
3
ott
Zip
$090
|
Ait
-fa0001,
HOOL
E
do0si
Lqwelesw
—
AM
C190
T
(2/1)
80991
bans
eaieee
7
Nac
fey!
i008
dove
,
WW
|
HEE
LOGHS
ALL
COM
*
QL
/¢6
wWelzsw
ov
)
46
yoLL
|
+
‘
oy
1099
(2/L)
ovat
4001
0001
ZOVO
2194
elod
thd
+
QE
SZ
guee
ov
0699
afge
SHEE
60¥0
ZIOLNDIN
ys
6ogy
*
OS/
zovwe
2039} dooot_s9g0 19 Net i
[aefe) | 1
ase
he
(6L0LXMW)
ASSv
Guvog
NIV
fg
|

MA-990
a ee re
1
90069SW
:
|
,
(ZLOLXMW)
ASSV
GYVOd
LNOYS
fe)
Liz-soz'gozlozms
a
ese
=
de
We
te
Odzve-UIS:
elz'voza
EBRST22
Lie-p12212-6020
+97
bong
PAL
PAL
PAL
1
'
oneveuis:
—
‘so2"e0z'zoza
#]
N{*
4
OAeEUTS:
s1z'Z0ze0e"Ocd
OBE
12!
oz
Bs
a
a
ee
l
sfcise
ph
head
eal
(8201XMN)
|
|
:
Smoxoms
z0z0
A
LALA
|
'
ASSV
GYVOd
SWNIOA
'
L
H
|
g
+90
HOA)
Ag
:
|
OISNN
=
OHO3
EOIN.
ONO
|
é
Si PLOISOW EO0ESON ZOOESOW ZOOESOW ZOOESON
|
;
ear
=
ed
|
'
(gos
(aioe
ech
{aio
=
(gL
.
Loza
3
aA
SOEUA
POEHA
0EHA
ZEA
«LOCA
|
©
dvySLOHPZo1
GGAT
10"
SA
!
|
1088
¥
gom>
1020!
5110
HOOA|
loa
Fy
9
v02
|
'
1
+
|B
lt
PPE
=
|
|
a>
1
Mi
gloedan
'
e00edaW
'
|
oLoedaw
ac
O94"
202ND
LOZNO
L.
LOENO
' = CENTRE eee ON LL See ET AISE a
| CWT UTR IS) BLOLGIN wus
ae
ae
ei
—
es
SS
x
-_—_—
x7
eee
oan
MBI
15a
+t
Pani
(anfasl
tan
fasten
a
zozvr
SZ
ozve
sosvr
BSSeeRee
2
=
ov
T1t4$4
i
9A
>
a)-|}
=
©
ioa1as
dal
Ese
eters
isl
|
XTBLVWAS
Cie
1 Tos1as IndNi |
>
OV
A
oy
OHOS
a
|
oze
qvelzsw
.
TTOIN
¥
|
1
aweLzsw
+
les
(2/2)
€0s91
COI
(2/4)
esol
'
yecoull
|
38
|
logy,
S8SY
O€SOL_yy,
Neca
bess
OL
ov
4
'
zesy sooeosw
*Povee
LOSMS
ASV
6250
9d
zA6t
5
7"
t
‘
d008!
ogg”.
y
i's)
?t
0ZS9
ozs
|
2a
Wa
Q)
soeve
goo
lt
f
see
;
i
a
Os
q
Se0
wHozeroun
ie
|
I
oor
eeu
+4
Zes:
H
RS ET 7 1) (/2) Z0SO1 7
Svo_0o
azn
TTY
ay
z90
|
vi
ool
siou
7
SH
ov
A6~
Z¥oolecsy
orl4¥
=
74
oor
eon
ca
ps
Mr
Sv
Srl
WW
a
40001
v2s0
ose’,
1
Q0AdSaI
avoor
wrasse
9|oY
SO"
Ist
oor
Mr
ezoH
a
H00o
Frees
8
Sialaalaziahs
3
8.2
ale
SV
Ob,
499
21
Tan
|E
00h,
Hoe
td
“inner
*
LOVES
l

MA-990
00
|
Ls
'
aigioigig
[
>]
Oo)
+}
CO
|
F
:
1
HOOA
€’OIN
:
JOSMS
|
19a
19a
194
d2z
dee
ez
'
6S99
8989
2590
ASSV
GHVOd
NIV
dooorl
ah.
Taooo:
joa
# TOULNOD ABM: L1ZMS | m4 °489 a 1 ts avayg
h
TOHINOD
ASM:
OLZMS
€094
7
oe
Ivma
a
4 TOYLNOD ASN: 6OZMS f t te ou osv
AdVL/EHOLOSTAS
LNANI
:
B02MS
E
1001
Mibou
oa.
ZHOL03738
LNANI
:
902M
pJinoisi
pend]
001
You
Repel
}YOLOATAS
LNANI
:
SOZMS
jas4
wosish2t
zoa
sv
‘yLSNO:
voems
=f
Eea/O1N
24
|
3008
st
oa
“AOON
|
COZMS
elses
=
eedS
goc
[91091
IOUT
SNYOHO
:
Z0ZMS
Baan
occurs
sha
zoa
iyBES4
GNNOUENS: OZMS Pel Snead eld Aoa6 el as
ASS
GuvOd
LNOH4
de]
OdWO/0Gd
Zid
790)
e990
ines
aszoee:
\dWO/LGd
bid
LOLS
ples
bOS
|
NO/AANVLS
H4MOd
:
LEMS
ig
zdWo/ead
SSA
oN
ove
ASSV
GHWO8
HOLIMS
U3MOd
4
fe{edno/e0d
ZHWeB9s'ce
_/89Y
zen
PPA
OPI
BLNOY
TWNOIS
O1aNy
:
|
o4
290
vane"
r
ee
Se
ee
_
Vieoodd
FOZOI
Es
;
190
0
| da990PO.L aul) al
iv]
66 o \
1
O9A
DOA
|
ay
ov
1 Svpizasz ov A
2070
qwaizsw
As
2]
oy
pPZOLNN
yoo.
|
(ee)povOl
4
FRE
A
OI
(izleoryr
LY
seruz
0s/0t
,
at
SY
ag-
|
oer
es
910
2S
ro
a
5
woe
gird
gvooil,,
|
Iwaizsn
“welzsn
o8i0
rene
sei
5
ae
ze90
+
-F
(2/1)S0991
(z/2)S099)
Ast
Advl
V
49.
bord
48°9
=
88
we
Me
Os/Z'P
ov
adbr
gir
©
Tego
seg
7999
A
ov
vivo
OV
‘a
Sprizasz
A
we
LOvO
aweizsw
12]
oy
38
yOOL (e/Lv0p0l *VZ A sa
WLP
gepus
09/0!
a)
m
62d
SLv0
z
SE
yo
Bo
+t
2——w
+3
©
sey
8N
ANI
“oso,
:
3
bi
Zivo
Lev
1
SINE]
He
We
AB Teer | 19 - Z sorneyi SQ izeou zeou Ose" a
sivy
98k
INIT]
SBT
ipoy
Z]
88:
£990
bZOLNIN
Zeb
:
S00
bare
soy
sey
(@ieobve
ue
owes’
et¥9
Y
gi00r
ers zr 6z90. | Ivglesw avel2sn
1
YSL
A6t
{2/2)90901
{2/1)9099)
1
rs
ys
vHOoespodn
net
(2/2)
LOSol
ZA6t

MA-990
£00190d
QYOO YAMOd OV
ZHO9/0S
AOE? OV
Vv
=
a
=
oO
=
a
a
ro)
foe)
a
ee
|
(9Z0LXMW) i
,
ASSV GYVOd HOLIMS HAMOd
|
|
to
7
t
V
|
RPS
1
good
I
|
2005S
1
!
2
ho
és
100]
|
100
Q
g
°
|
+zems
yze9|
|sze0
'
8s
284,
728
aH
R
z
y
WOO
|
' aN LAO
as
fe
aaa
S00
ve
—
v4s08/WPN
a
'
1
:
VSG06ZWIN
ag
ma
WHLNIN
A
J
es
1
zp
6bO1daW
©
ea?
THM
nud
"3S
a8
\"e
US
88,
a
'
SiOLLIW H
|
HAWHOJSNVHL HaAMOd
“jl
Sihise tas
ins
ewes
wi
etnmn
tl
a
tn
:
j3ZO-S
'
1LP
BG
1006
tN
|
ov
AB-
on 8 |gj]g
9
|
seeevsz £ jels
'
=
ee
£000
=
jefe
©
&
soreiosz
a
Tots
»
2000
2
18/8
1
88
g
Z
1a1g
SATS
Ra
i
LOS
TSS
LANT
|
iz
“y
~
#
OV
AG~
i
BI
ysesss
es
138
'
8]
e10a
a)
was
Bl
eo
8
88
a
ov
awelzsn
|
%
espzosz
D+F
(eie)r0901
i
me
tosa és/i
aim
“as
pSzSSi
seso
Gees
890°0
X16
HOMIE
ay
Hoel
“Zesd
7
ces
9esu
wz
Lys
1
rey
Kav
|
}
6028
190
1
ener
a
‘
vy
L_}
ISATSOISW
1
1
1

1
MA-990
4. PCB CONNECTION DIAGRAM
4.1 MAIN BOARD ASSY
IC401 Ic602
1C404 IC606 IC605 1C003 Icoo2 1C001 IC004
1C405 Q402 Q401 Q001 Q002 Q003
FEYMAIN BOARD ASSY
BD) CN321 8 12. 11-10
To POWER TRANSFORMER
10

2003
3. View point of PCB diagrams.
IC603 Ic402 IC503
IC604 Q504_ = IC504
{C701 1702 Q701
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.
IC502
C501
P.C.Board
Chip Part
SIDE B
11

MA-990
—————
12

MA-990
IC608 IC601
pimsnenninist
crane
yy
>
Cc a
Q
ea
ZO O ud 712)
13

MA-990
, FRONT BOARD AND VOLUME BOARD 4.2 POWER SWITCH BOARD
ASSEMBLIES
FRONT BOARD ASSY
SS TTT
TT
14

MA-990
>
op) “)
<= Q o <
O
a a Zz
O
oc LL
Note:
between the main parts of PCB and + Acomparison
=
2 oO a
ic =
6
iad
o 2 n
=
S
&
>
& nol no w
is
o
= S
Q
° £ S =z
=.
5 a
i 8
a
‘°
2s
38
sé
on
3
S
oO
pattern
Indication
Transistor
Resistor
Capacitor
(Non polarized)
Capacitor
d
Capacitor
(Non polarized)
15

MA-990
4. PCB PARTS LIST
NOTES: ® Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
@The A\ 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%).
5S60Q > 56x10’ > S6l... RpDi4Pu [S| [6] A) 7
47kQ >) 47x10° 473 4)(7) [3] 7
0.5Q
>
5]
[0]
K
1Q > R} [0] K
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
SO2K QS SOD31O" Se. SGD ecsstecurst tecseslascotesscesdccestiasiesoteens) RNI/4PC 6] 2IA)F
Mark No. Description Part No. Mark No. Description Part No.
LIST
OF
ASSEMBLIES
CAPACITORS
NSP
MOTHER
BOARD
ASSY
MWM1038
Goerc00s
ces
oeMeate
NSP
|
POWER
SWITCH
BOARD
ASSY
+
MWX1076
007
CODE
658,
C020
CEA470M16L2
C007-C009,C011 CKSQYF104Z50
| FRONT BOARD ASSY MWX1077
a
C010,C660-C662,C701
CEA470M10L2
OE
EN
nce
Lphaeee
ie
€012,C415-C418,C505,0513
-
CEA00MS0L2
_ MAIN BOARD ASSY MWX1079 : } ’
C519,C530,C531,C536 CEA100M50L2
C013 CEA3R3M50L2
C014 CEA101M25L2
C401-C406 CCSQCH331J50
C407,C408,C507,C516,C522,C524 CCSQSL102J50
FY main Boarp assy
C603,C604,C615,C644,C652,C665 CCSQSL102J50
SEMICONDUCTORS C666,C669-C672,C674,C675,C677 CCSQSL102J50
A
co01
NJM7809FA
C409,C410,C425-C429,C508,C515
CEA330M16L2
A
co02
NJM7909FA
C521,C523,C527,C529,C534,C537
CEA330M16L2
A
C003
NJM7805FA
C601,C602,C611,C612,C618,C620
CEA330M16L2
co004 NJM78L05A
c401
TC4052BP
C642,C650,C651,C673,C676
CEA330M16L2
C413,C414 CCSQCH101J50
C402,1C404,1C503,1C504
M5218AL
C419-C422
CCSQCH471J50
C603-IC606
M5218AL
C501
,C502,C509,C510,C550,C640
CKSQYB103K50
C405
TC4066BP
C641,C653,C654,C702,C703,C707
CKSQYB103K50
C501,1C502
UPC4570HA
C€503,C511,C517,C623,C624
CKSQYB222K50
c601 LC83025E
C504,C512,C518,C637,C638 CEA4R7M50L2
C602
LC32464P-80
C663,C664
CEA4R7M50L2
C608
LC78815M
C506,C514,C520
CKSQYB182K50
C701
PDCO31A
C528,C533
CCSQCH330J50
C702
M51951BSL
C532
CKSQYB683K50
Q001,Q003 2SA933S
C535,C607,C608,C617,C706 CEA1ROMS50L2
Qo02
28C1740S
C605,C606,C616,C625,C626
CKSQYB472K50
Q401,Q402
28D2144S
C633,C634
CKSQYB472K50
Q501,Q502
2SA1048
C613,C614
CCSQSL152J50
Q504,Q701
2802458
C635,C636
CCSQCH181J50
A —_-004-Do008 ERA15-02KFRB
C629-C632 CEA101M16L2
D009-D011,D013-D015,D501,D701
188254
C627,C628
CCSQCH271J50
bo12 RD16US C643 CCSQCH130J50
D702
RD4R3ES
C645
CCSQCH300J50
COILS
AND
FILTERS
C657-C659
CCSQCH220J50
iso!
L602,L603,L605,L606,L608
CAU2RE)
hea
Parnes
Le1olé1) LAU2R2J RESISTORS
F601-F603,F701
MTF3002
J501,J601-J603,J606
RD1/10SOROJ
J607,J610-J612 RD1/10SOROJ
SWITCH
All
Resistors
RS1/10S|
J
sw6501 MSG3005
16

MA-990
Mark No. Description Part No. Mark No. Description Part No.
eTHERS [0) Power swiTcH BOARD ASSY
NSP PCB MNP1063 0 SWITCH BO SS
CN001
CABLE
HOLDER
MEP1049
CAPACITORS
JA401,JA403 JACK MKN1024 21-032: KSQYB103K:
JA402. JACK MKN1017 nd eed Rhee eee
JA501,JA503,JA504 MIC JACK MKN3005 SWITCH
sw321 MSG1007
JA502 JACK MKN3006
JA505 CONNECTOR MKP1019 OTHERS _ sineiaed
JA701_ CONNECTOR MKP1022 Bee ib dey a
JA702 CONNECTOR MKP3007
x601 RESONATOR MSS1017 CN321 CABLE HOLDER MEP1049
(33.8688MHz)
X701 RESONATOR (4MHz) — MSS3013
EARTH TERMINAL JKF1009
Toot TERMINAL JKE1003
Too2 TERMINAL JKE1002
T0038 = TERMINAL JKE1001
CORD MDB1023
CORD MDB1024
[=] voLume assy
RESISTORS
VR801-VR303_ (10k2-B) MCS3002
VR304 (10kQ-C) MCS3003
VR305 (50k22-B) MCS1014
R301-R303 RS1/10S332J
OTHERS
PARALLEL CORD MDD1016
PCB MNP 1065
CN301 CABLE HOLDER MEP3009
FRONT BOARD ASSY
SEMICONDUCTORS
1C201 TC74HC154AP
D201,D206,D207,D218 SLR-342VC
D202,D203,D205,D209-D212 SLR-342MC
D214-D217 SLR-342MC
D204,0213 SLR-342DC
SWITCHES
$W201-SW206,SW208-SW211 MSG3006
CAPACITORS
C201 CKSQYB103K50
C202 CEJANP1 ROM50
RESISTORS
R204,R205 RS1/10S2713
R201-R203,R206,R208 RS1/108331J
OTHERS
NSP PCB MNP1064
PARALLEL CORD MDD1018
PARALLEL CORD MDD1019
CN201 CABLE HOLDER MEP3015
CN202 CABLE HOLDER MEP3010
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.
Wi TC74HC154AP (FRONT BOARD ASSY : IC201)
» Line Decoder
ePin Assignment (Top View) eTruth Table
Selected
Yo
1
24
Voc
G1
|
G2|
D
Y1 2 23 A L L L 1
Y2
3
22B
L i t
2
Y3
4
21C
L
L
L
3
¥4 5 20D L L iL: 4
Y5 6 19 G2 L L L 5
Ye
7
18
Gi
rie
ee
oe
6
Y7 8 17 Y15 L L L 7
Y8 9 16 Y14 L L L 8
Y9 10 15 ¥13 L L H
Yio 11 14 Y12
GND 12 13 Yu : : :
L ts H
L L H
L L H
L L H
L L H
x H x
H x
X : Don't care
eBlock Diagram
G1 © >
= »—p> => 6 yi
G2@
¢>
D
—
>D—D>
(1)
Yo
|_bp, o—@) Y1
ES Do——@ Y2
>o—@
Y3
A ®@ po—) v4
D>o—{®) Y5
Do—@ Y6
B
@
>o—®)
Y7
Dbo—©® Ya
c @ Do——49 Yo
>o—
Y10
Do Y11
oe Do) Y12
>o—4) Y13
tf p—d>—_ oo 4) Y14
t= >—>—>o 1) Y15
18

MA-990
i
LC32464P-80
(MAIN
BOARD
ASSY
:
IC602)
» 256k (65536 word x 4 bits) DRAM
Pin
Assignment
(Top
View)
Block
Diagram
OE
vol
02
WE
RAS
AG
AS
A4
vec
Clock generator No.1
Clock generator No.2
Clock
Mode
control
generator
No.3
Refresh counter
262144 bit
memory cell
;
Data
input
Low
address}
|
{256
x
4}
~
buffer
buffer
Sense
amplifier
=
soa
buffer
Column
address
Solumn
cares
vi
decoder
butter
a
PCB
Bias
generator
i
M51951BSL
(MAIN
BOARD
ASSY
:
IC702)
« System
Reset
Low decoder
Pin Assignment Block Diagram
TSALSELSW
[| —_—__— _—]
Hi NJUM7909FA (MAIN BOARD ASSY : IC002)
» Voltage Regulator
ePin Assignment

MA-990
Wi
PDC031A
(MAIN
BOARD
ASSY
:
IC701)
- 4bits 1 chip Micro-computer
Pin Assignment (Top View)
POO
Pot
PO2
P03
P10
Pit
P12
P13
Slo/P20
Soo/P2t
SCKo/P22
INTO/P23
INTI/P30
POUTO/P31
POUT1/P32
HOLD/P33
P40
Pat
TEST
Vss
osct
PE1/TRB
PEO/TRA
VDD
PD3/CMP3
PD2/CMP2
PD1/CMP1
PDO/CMPO
PC3/Vref1
PC2Vret0
P63/PIN1
P62/SCK1
P61/SO1
P6O/SH_
P53/INT2
P52
PS1
P50
P43
P42
RES
Osc2
eBlock
Diagram
&
si
ae} +[rmens [Semncio7 ES
: MPX ; 1 6) S01
Wi
LC83025E
(MAIN
BOARD
ASSY
:
IC601)
¢ Karaoke
Digital Signal Processor
Pin Assignment (Top View)
Bhecaesterenenes
Omooononanor> radcatatce
SISISIRES (3
DREAD
A4
WAT
A3
ASO.
A2
BCKO
Al
LRCKO
AO
FS3840
SAK
ASI
SADV
BCKt
SICK
LRCKI
si
FS3844
SIRO
SELC
vss3
VDD1 VDD3
OSsci
P4
osce2
P3
vsst
P2
vss2
P41
RES Po
SAIF ADM3
SAOF ADMVDD
TEST6
ADM1
TESTI
ADMVSS
TEST2
TEST3
TEST4
20
ERIS SSRI ISIEIEIe
om
nd
nu
=
an
=
Pa SBABBE BASSES ESE
®a>r><t<se2e5375>E253929020
YS>r4uAaArtkartoat ates
FO
ae”
g¢4"°@
Asa
fal
a aa a < < <
ADM2
ADR3
ADRVDD
aT Tepe TT
uy ye uy gy
Block
Diagram
Sequence Control
Program
ROM
Program
Decoder
Loop Counter
: - 2)SCK1
G3X15) PIN1,POUT1
a
ALU/Shifter
DRAM Interface
LIFO
uP Interface