LG LST-4200A Service Manual - Page 30

Check 1C103 and IC104 programs.

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(D) YES Is signal generating at pin 26 of NO IC103, IC104 when charging power at the first time? YES Is signal generating continuously at NO pin 26 of IC103, IC104 when charging power at the first time? YES Was the booting process normally NO completed? Check IC110. Check 1C103 and IC104 programs. IC103, IC104, IC107, IC108 Fig.05 3-21

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3-21
Is signal generating at pin 26 of
IC103, IC104 when charging power
at the first time?<Figure.05>
(D)
Is signal generating continuously at
pin 26 of IC103, IC104 when
charging power at the first time?
Check IC110.
NO
Check 1C103 and IC104 programs.
NO
YES
YES
Was the booting process normally
completed?
IC103, IC104, IC107, IC108
NO
YES
Fig.05