TROUBLESHOOTING GUIDE
Are the pin 41
and 44 of PN201 +12V and +5V
respectively after the power
cable connecting?
Reset or Power Check.
•
Check the power(12V, 5V) short.
•
Check PC power cable.
•
Repair the PC power supply.
•
Check the IC101(RESET IC).
•
Check the IC102(BA033S), IC201
(OTI-9790), IC301(HD64F3062)
Does the pin 1
of IC101 change 0V to 5V at the
power supply initial input mode?
•
Is the pin 4 of IC103 3.9V?
•
Is the pin 32 of IC401 2.0V?
•
Is the pin 4 of IC102 3.3V?
•
Is the pin 7 of IC514 2.5V?
•
Is the pin 1 and 2 of IC514 2.0V?
•
Is the pin 1 of IC511 8.0V?
•
Is the pin 1 of IC512 8.0V?
NO
NO
YES
YES
YES
YES
YES
49
Are the X201 and X301 oscillating?
•
Check the X201, X301.
•
Check the IC201, IC301.
NO
•
Check the IC103(BA3939).
•
Check the IC401(CXA2551R).
•
Check the IC102(BA033S).
NO
Check the IC514(NJM3414).
•
Check the IC511(NJM7808).
•
Check the IC512(NJM7808).
NO
NO
Check it after connecting the power cable
only on interface cable for NO Reset or
Power ON.
YES
OK