Advertisement
CIRCUIT DESCRIPTION
Key matrix connections and switch formation
O
Momentary switch
O
Diode switch
an
o
ini
BE +t
b
Se
Sd
Se
Sf
Sg
Sh
ol
Synthesizer unit y-com : uPD1707G-544
yIPDI707G6 -544
(Top View)
3% Internally connected
to the 7 pin.
Kx
Dy
wn
o
n
NINIMIMIHMIM
Wwo[*lo
|alo
lo
wn
-
D,
oO ~
D3
TAPE/RADIO
OP1
ee
PA,/SI
PA,/SCK
Pe4/80
OP2/CE
OP3/CLOCK
AGC-CUT/DATA
OLW
OMW
OFM
(NC: No Connection)
< {s] oO
Advertisement
