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

Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section.

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Old 03-20-2012, 07:47   #1 (permalink)
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nokia 5233 need urgent help by expert


i have 5233 set,set is ok in coming and out going ok.
but no light on display, i changed light ic 10 to 15 times but no light.
i think this is not a light ic fault.
expert xplan me all digrame for light.
thanks in advace.
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Old 03-20-2012, 08:07   #2 (permalink)
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Quote:
Originally Posted by mahzra azra View Post
i have 5233 set,set is ok in coming and out going ok.
but no light on display, i changed light ic 10 to 15 times but no light.
i think this is not a light ic fault.
expert xplan me all digrame for light.
thanks in advace.
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Old 03-20-2012, 08:50   #3 (permalink)
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i done it already but light ic is not making volt.
tell me,what i do?????
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Old 03-20-2012, 09:40   #4 (permalink)
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what about display? did u seen anything on lcd?

if not replace d marked ic then check. also post result
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File Type: jpg 5233_lcdic.JPG (58.6 KB, 215 views)
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Old 03-20-2012, 10:52   #5 (permalink)
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i made jumper and changed Z2450 but not good result.
i m unable to see garafic.
more help.
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Old 03-21-2012, 07:35   #6 (permalink)
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help me fast. where is xpert.
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Old 03-21-2012, 20:00   #7 (permalink)
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try to resold or replace lcd connector then check.
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Old 03-22-2012, 03:51   #8 (permalink)
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but light ic is not making any volt.
i changed many light ic.
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Old 03-22-2012, 04:25   #9 (permalink)
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this phone light ic is diffrent then anothers get it from another 5233 or 5800 ur problem will b solved...
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Old 03-22-2012, 07:24   #10 (permalink)
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two time ic from same board i used but same .

help more.

and a another nokia 5233 set was ok only user code ,i flash with old ver. flash file, it gone only vibrat mode. i download latest ver RM-625_51.9.002_prd.core.C00 but same in condition. help for this too.
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Old 03-22-2012, 09:59   #11 (permalink)
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after getting signal from lcd , light ic enable means supply voltage to glow led.

thst's why I ask u to resold or replace lcd connector , or double check d lcd esd filter . here I upload another picture for understand. (N2301 is d light ic)

please post result.
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File Type: jpg 5233_lighten.JPG (43.4 KB, 137 views)
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Old 03-22-2012, 11:16   #12 (permalink)
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Quote:
Originally Posted by mahzra azra View Post
two time ic from same board i used but same .

help more.

and a another nokia 5233 set was ok only user code ,i flash with old ver. flash file, it gone only vibrat mode. i download latest ver RM-625_51.9.002_prd.core.C00 but same in condition. help for this too.
Replace for light work L2440 Light Coil,also check L2444 filter if bad make jumper Chk R2440 must have 27 omh if bad replace if not solve replace Betty.
Also check what scsarcar say from capacitor C2445 to LCD connector pin3 if line ok not broke.
Post Result
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Old 04-06-2012, 07:48   #13 (permalink)
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5233 Lcd Light

5233 Light problem
i tryed all jumpers & light ic.
then tryed with betty now its
working fine
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Old 04-08-2013, 11:43   #14 (permalink)
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near lcd conector display ic remove ind make jumper ur problem solve 100000% dont forget thanks
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Old 04-08-2013, 12:05   #15 (permalink)
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check lcd ic . sounds strange but it will work
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