Table of Contents
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UPD65622
I
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PBo
PC7
PC6
PCS
GND
PC4
PC3
PC2
Pcl
Pco
NROM
A18
ROM2
ROM1
NRAM
Al 6
RAM3
PPPPPPPPVGNSSSSP
AAAAAAAADNSTTTTR
01234567DDTBBBBT
B1234C
UPD65622
RRN
AARNNAAAGVAAAAAA
MMSWRDDDNDDDDDD3
21 TRD765DD43211
L
2 2 2 22 333
3 3 3 3 3 3 3 4
5 6 7 69 012
3 4 5 6 7 6 9 0
MC1413
PIN CONNECTIONS
TC4053
I_'"l
lY
1
16
VDD
OY
2
15
Y-COM
lZ
3
14
X-COM
Z.COM 4
13
lx
Oz
5
12
ox
INH
6
11
A
VEE 7
10
B
Vs$j 8
9C
AD7-ADO
r
RAMCS
1
ROMCS
TPE4-TPEO
20.736 MHz
I
RAMCONT
I
I
ROMCONT
I
'c3m
Tip
PA7-PAO
PB7-PBO
PC7-PCO
STB4-STB1
RAM3-RAM1
ROM2-ROM1
STBINT
TPHC
Ring
I
AC2
RG
RC
RS
I
)
MC34017-X
Piezo
Sound
Element
MC34017-I
: C = 1000
PF
MC34017-2:C=
500PF
MC34017-3:
C = 2000
OF
TC4053BPIBF
A
B
c
INH
o
8
VSS
o
7 VEE
X-COMMON
ox
lx
OY
lY
Oz
lZ
z-
COMMON
Y-
COMMON
5.0 IJF
+ 25V
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Table of Contents
Troubleshooting
