Samsung Service Manual SGH-C100, Service Manual do Tel.komórkowych, Samsung - Service Manual
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SERVICE
Manual
4.SGH-C100 Flow Chart of Troubleshooting
1.Power ON
'POW ER ON'does notwork
Check the current
consum ption m ore than
100m A
No
Download again
Yes
No
Check the Voltage of the
B atte ry m o re th an 3 .3V
Charge the Batte ry
Yes
C heck the capacitor C236
close by U 200(M SD) is
m o re than 3 .2V
No
C heck to the path from CN 402 to
capacitor C236 close by U200(M SD)
Yes
2.7V¡´C234 of
U200(M SD)
=28V
No
Check the M SD(U 200)
Yes
No
Check the TP222 of
U200(M SD) ishgh¡ 2.8V
Check the CX805-31P(U300)
Yes
C heck the initialoperation
END
4
-1
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SGH-C100 Flow Chart of Troubleshooting
2.Initial
InitialFailure
No
Check the R209 of
U200 isHigh'
Check the U200(M SD)
Yes
No
Check the clock
signal'swaveat
R201(19.5M Hz)
Check the clock generation circuit
(re lated to U200 and OSC200)
Yes
Check the TP234
3.9M H z w ave & TP220
is"Hgh"
No
Check the U200(M SD)
Yes
Check the connections and initialization
using Factory T est Program
END
4-2
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SGH-C100 Flow Chart of Troubleshooting
3.Charging
* T est after connecting withBatery
:All4 term inalsnbatery shouldbeconneced to the phone by using jum p-w ires.
Abnorm alcharging part
Check the pin17
of CN 402 isaround
5V
No
Check the TA
Yes
Check the pin6of
U210 is"LOW"
No
Check the U210
Yes
Check the pin3of
U 210 is "LOW "
No
Check the pin
3 of U503 is
short to ground
Yes
Yes
END
Check the connections of
4termnalsn b attery
4-3
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SGH-C100 Flow Chart of Troubleshooting
4-4
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