Ww 
a 
Pt 
~ 
AKAI 
MODEL 
$900 
| 
SCHEMATIC 
DIAGRAM 
AND 
PC 
BOARDS 
TABLE 
OF 
CONTENTS 
SCHEMATIC 
DIAGRAM 
OF 
ICS 
..........sscccceesssceerreceessssnseecessceeseneseesovenees 
VOICE 
BLOCK 
DIAGRAM...............ccsssscsssscescceesssscesssseesesseesennsnsesessnserers 
INPUT 
JACK, 
OUTPUT 
JACK, 
VR, 
CONNECTOR, 
INVERTOR, 
FILTER, 
CONTRAST, 
LED 
PCB.................ccccsssssssessocssessarssnsesvecssescsoennens 
CONNECTION 
DIAGRAM...............sssscssscsssssssersrececsessnercsssssnseescssssessnenes 
VOICE 
SCHEMATIC 
DIAGRAM 
uu... 
eeccsesenreeeeeeresenscseessseeeesenseeeesnens 
Ee 
Ft 
eninsnerenanninnensiey 
Cee 
m 
meee 
eee 
eee 
Eee 
HEE 
SESE 
EH 
EES 
EE 
SES 
EHSES 
EH 
EEE EEE 
EESEEE 
SEH 
EH 
EEE 
SHEESH 
EES 
EOED 
POWER 
SUPPLY, 
PANEL 
SCHEMATIC 
DIAGRAM 
AND 
POWER 
SUPPLY, 
PANEL, 
CONTRAST, 
LED 
PCB...............sssscsssssssscerssseessrsoens 
FDD 
BLOCK 
DIAGRAM 
CeO 
eee 
eRe 
E 
EEE 
HEE 
SESH 
SEO 
EES 
EE 
EES 
EE 
SESES 
HES 
ESE 
EE 
EES 
ESES 
SEO 
EEE 
ES 
EEE 
EEE 
EEEED 
DRUM 
INTERFACE 
SCHEMATIC 
DIAGRAM 
..........ccccssceesseeseeeeeseeenees