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4. TROUBLESHOOTING
Checking Flow
START
MMI Connector (MAIN PCB,CN300)
Is well-soldered ?
YES
60pin connector (MAIN PCB,CN500)
Is well-soldered ?
YES
30pin connector (KEY PCB,CN203)
Is well-soldered ?
YES
KEY PCB U201 are
well-soldered?
YES
Voltage across KEY PCB R210 is
about 1.2V?
YES
Battery is charged?
YES
Charging is
properly operating
Resolder the CN300
NO
Pin 12,13 : VCHARGE
Pin1,18: GND
NO
Resolder the CN500
NO
Resolder the CN203
NO
Resolder the
U201
NO
Replace the
R201
The battery may have
NO
problems.
Change the battery.
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