Charging Part - Samsung SGH-C450 Service Manual

Flow Chart of Troubleshooting

9-7. Charging Part

Abnormal charging operation
Yes
Check DC jack
OK
Check the 32 Pin and
33 Pin of U300
OK
Check TR300 (E,B,C)
OK
Check R307
OK
END
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Not OK
Not OK
Not OK
Not OK
Solder R307 again or change a
9-14
Replace the U300
Replace the TR300
battery