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o
Block flow chart No.2
;
Errors
Yes
<q
Always Occur with
|
IV.
Keyboard
»
a Specific Ke
"KBDATA"
—JfLe
cee' LE
Errors occur with
all keys
*KBDATA
*KBCLK
"KBDATA"
"KBCLK"
@)
Visual check item
Connector
Typical waveforms to be measured
Waveform diagram or condition
Possible error part or block
Figure 9-3
o
Block flow chart No.3
ALE
Oscilloscope
(2)
ALE synchronization:
"ALE"
G)
Preparation item
(2)
Connector to the other page (2.2 is an item number.)
Figure 9-4
I - 40
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