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Reload this Page Nokia 3500c black screen problem
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Old 10-11-2014, 16:14   #1 (permalink)
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Nokia 3500c black screen problem

can u help to fix the problem with nokia 3500c black screen
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Old 10-11-2014, 17:26   #2 (permalink)
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Try to change the new LCD bro

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MOMOS_GSM
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Old 10-11-2014, 17:28   #3 (permalink)
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Thnk you dear i try but not work
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Old 10-12-2014, 17:31   #4 (permalink)
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Originally Posted by bekja1 View Post
can u help to fix the problem with nokia 3500c black screen
1. First of all check Vbat voltage at L2305 & C2314. If absent, make jumper from Vbat+ connector (be shure that no leakage in C2314).

2. Check voltage at C2315, it must be near 12-14V. If present - check way to L2403. If destroyed - make jumper.

3. If no 12-14V, type result for further support.
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Old 10-12-2014, 20:16   #5 (permalink)
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L2305 & C2314 = 5v
C2315 and L2403 = 13 v
all ok whats happen ????
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Old 10-12-2014, 20:42   #6 (permalink)
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Quote:
Originally Posted by bekja1 View Post
L2305 & C2314 = 5v
C2315 and L2403 = 13 v
all ok whats happen ????
Measure voltage at C2414, it is near X1001(lcd connector)
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Old 10-12-2014, 20:58   #7 (permalink)
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Nokia 3500c black screen problem
I check dear
C2414=2.7volt
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Old 10-12-2014, 21:22   #8 (permalink)
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I check dear
C2414=2.7volt
Must be the same 13V, check N2401 -
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Old 10-12-2014, 21:32   #9 (permalink)
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Pin 4 - 13volt pin3-4.3 volt
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Old 10-12-2014, 21:41   #10 (permalink)
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Pin 4 - 13volt pin3-4.3 volt
Must be the same. Find out reason - bad N2401? bad signal PWMTAHVO, leakage at C2414, leakage at X1001.
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Old 10-12-2014, 21:53   #11 (permalink)
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Wanted to change n2401 ??
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Old 10-12-2014, 22:07   #12 (permalink)
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Wanted to change n2401 ??
Possible, if other reasons is good. It's can decide only you....
Or place here all measurements - voltages and leakages.
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