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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Sony Ericsson > Sony Ericsson Hardware Repair


Sony Ericsson Hardware Repair Post here your Hardware Repairing Hints or Problems with SonyEricsson and Sony Phones.

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Old 06-29-2007, 11:03   #1 (permalink)
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Question k300 lcd lihgt


I have k300 lcd text is ok but lcd led is not on....
Hafiz Mobiles
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Old 06-29-2007, 11:33   #2 (permalink)
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here the solution after that replay me
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Old 07-04-2007, 02:49   #3 (permalink)
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hi the ic is broken....
any jumpers...?
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Old 09-04-2007, 10:35   #4 (permalink)
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pls help us with light ic ,jumper ways
thx in adv
is there any jumpering ways for this ic???(I THINK THAT JUMPERING IS FOR ESD-FILTERS ,AM I RIGHT???)
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Old 09-04-2007, 13:08   #5 (permalink)
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that's not possible.....this is an integrated circuit which can't be by-passed. Only change it....

BR
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Old 09-05-2007, 10:40   #6 (permalink)
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the easy way is to change DC/DC driver convertor
if pcb is damaged by water or...U can use this modify
for this u must change LED's connections too, from serial to parallel

Use an NPN transistor
If are using an FET transistor isn't need to change LED's connection

solution is tested/made by me
100% working
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Old 07-05-2008, 15:52   #7 (permalink)
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thanx sir it is your good work
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