Audio Synthesizer Board (A10) - Motorola R-20010 Maintenance Manual

AUDIO SYNTHESIZER BOARD (A10)
(RTC-1 008A)
Figure 12-2a. Schematic (Sheet 1 of 3)
12-4
IOOIU·
, AITIAtlt£fDDC( 0£51G*liONS All
SKIWM.
FOR
C.C:.Ol£1(
OOIG*HCIIS "'UJU W ITH 1M.
FOitltfJUOiai&AW IHGS tlJUilOASSY. NO. II ~
I.NLSS QDOWIS( srttlfll.
AUIOISlOitSAAt: IMOHJI'Sa
"" P'C1.
UriWATliSI
AUWACITOISARf IIUf"
AU IIDJCTOI'S All INUH.
AU YOl'(A(i(S AI£ IN DC.
Q WARNING
STATIC-SENSITIVE PARTS
HANDLE APPROPRIATELY
SHT.3
(1
SHT.2
rx
SHT.2
~
SH"t3 ~
PL SI<>AAL SHT. 2
OPL '.>IGWIL
, - - - - - - - - - - ------
PL/ DPL '=oE\.E.C.\ TPI
~
L _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ j
R59
10 11
+ 1 2V
R55
100
Q3
MP56~20
SHT.2 @)
I
R46
Q4
MPS6519
R!lf>
100
- 1 2V
100
+ 12V ~+9V
+I
C50
\OUF
50V
-IZV
R47
100 -91
-----'V'..*
-::-
C51
IOUF'
sov