Korg Wavestation - IC Check Point

9.
IC
CHECK
POINT
MB622472
(
MAPI
6
)
1.
Are
Control Data
Signals
from CPU
received
into
AS, R/W,
HDS
and
LDS
?
2.
Are
Chip Select
Signals
transmitted
from
ROM, TG88,
DF88,
LCD
and
MDE
?
5V
OV
2V/SWEEP
STOP
When
the
power is
turned
on, Low
Pulse
is
transmitted.
When
the
key is
pressed,
Low Pulses
are
transmitted
from
ROM
and TG88.
When
the indicatoin
of LCD
is
changed,
Low
Pulse
is
transmitted
from
LCD.
3.
Are
Read/Write
Signals
transmitted
from
RD,
LDWR,
LWR
?
4.
Are
Control
Signals
to SRAM
transmitted
from
LSOE,
LSWE
NLOE,
MSWE,
NMOE,
NMWE
?
NLWE,
MSOE,
MB87726
( TG88
)
1.
Is
Reset
Signal
received
into
XREST
?
2.
Is
Master
Clock
32MHz
received
into
CLK
?
3.
Are Chip
Select
Signals
to
Wave
ROM
transmitted
from
WB0~3
?
4.
Are
Voice
Number
Signals
to
DF88
transmitted
from
VN0~4 ?
VNO
2
-J
3
-
4
-
32uS-
2V/5uS
40