Pioneer MA-9 Service Manual page 11

5. BLOCK DIAGRAM
10504(2/3) DIGITAL
LAY
1C401(1/2)
=
Mic 1
MIC 2
a |
eVOlce 0
HANCER 6
ee
VR502 CIRCUIT
Lo 4
vaice't
1€401(2/2) 1C503,Q501
iC501(1/2) 1C502 r,
l
1€501(2/2)
>
ENHANCER
FF
ON/0
AUDIO SIGNAL
DETECTION ,|-—'C504(3/3)
1C402 1| 8
CONTROL
C101
L(© 1
LINE pa ar
IN ) \
R (QC) |
|
!
TAPE
PLAY
TAPE PLAY/REC
1C504 CIRCUIT ro
(1/3) o Ol
mics |] VR503 ra Lo-H
fae i VOCAL
PARTNER
ON/OFF
+5V
MIC 3 ECHO VR505
ON/OFF MPX BALANCE
Ic113
1c112
1c 112 BUFFER Q1it
MUTE
CIRCUIT
BUFFER 1€109(1/3)
1€117-1C130
Q113,Q114 1€104 ,IC105
MUTE
CIRCUIT rl-s2
ea i :
TAPE
uw
{C114 t
TAPE PLAY/REC
KEY CONTROL &
MPX BALANCE
VOICE CHANGER ON/ OFF
ON/OFF
spos} |
1. SSSrerean aoe
oO Ls
fo) te)
oO ©
0106-0109
ee KEY CONTROL
T101 POWER SW POSITION.
POWER
ae 1C134 ,1C137
INDICAT TON
ANSFO
AC 110/120-127/220/240V ao
ee
+5V
$601-S606,
50/60Hz
ar abl
CORD 10135,1C136
eoeesee 6V SYSTEM +5V
gas
AC ies Cad ce ee CIRCUIT ON
OUTLET VOLTAGE
SELECTOR
.
(UNSWITCHED)
: