Table of Contents
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Flow Chart of Troubleshooting
10-1-2. Initial
Initial Failure
check the pin
RSTB of UCP201
is LOW?
check the pin CKI
of UCP201 is
13Mhz?
Check the clock signal
at pin #3 of OSC100
Freq=26Mhz?
Check the pin #9 of
UCP107 is HIGH and pin
#11, #13 is 2.9V?
Check the Initial Operation
Yes
Yes
Yes
Yes
Yes
END
No
Check U201
Check
No
R177,R178,R131,C127
No
check
No
Check UCP107
10-3
1
2
3
OSC100
4
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