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

Samsung Hardware Repair Post here your Hardware Repairing Hints or Problems with Samsung Phones.

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Old 12-04-2013, 11:12   #1 (permalink)
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i9500 i9505 - not power on (hardware)

-Condition: Not power on
-i9505 Board attached to power supply shows 0.05 A.
-When power ON button pressed "A" not changing. stays on 0.05A.
-How to find which capacitor is shorted,
-maybe problem is in i9505 power IC ?

Solution, some kind of ?
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File Type: jpg pm8917 power ic i9505.jpg (194.6 KB, 368 views)
File Type: jpg power ic i9505.jpg (104.7 KB, 389 views)

Last edited by unlock.mk; 12-04-2013 at 11:22.
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Old 12-04-2013, 11:47   #2 (permalink)
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Quote:
Originally Posted by unlock.mk View Post
-Condition: Not power on
-i9505 Board attached to power supply shows 0.05 A.
-When power ON button pressed "A" not changing. stays on 0.05A.
-How to find which capacitor is shorted,
-maybe problem is in i9505 power IC ?

Solution, some kind of ?
I got to mention 3 things more:

- On battery or charger connected, board becomes very hot.
- Riff box does't recognise this phone at all
- PC doesn't recognise phone eather.
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Old 12-04-2013, 12:46   #3 (permalink)
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Work progress made.
- Power IC reballed, result same.
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Old 12-04-2013, 14:00   #4 (permalink)
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Quote:
Originally Posted by unlock.mk View Post
I got to mention 3 things more:

- On battery or charger connected, board becomes very hot.
- Riff box does't recognise this phone at all
- PC doesn't recognise phone eather.


samsung gt-i9505 turn on problem
1. check or replace the two capacitors C835 and C838 (number 1)
(Repeated measure with avo meter or psu)
2. if the charger is still hot when in his third locker) number 2)
see the image below:





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Old 12-04-2013, 14:23   #5 (permalink)
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I would check if there is voltage on power button , change the power ic , if there was an short on pcb , there will be high current consuption on power suply , check if quartz freqvency is ok.
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Old 03-24-2014, 20:17   #6 (permalink)
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Quote:
Originally Posted by unlock.mk View Post
-Condition: Not power on
-i9505 Board attached to power supply shows 0.05 A.
-When power ON button pressed "A" not changing. stays on 0.05A.
-How to find which capacitor is shorted,
-maybe problem is in i9505 power IC ?

Solution, some kind of ?
replace Ic Power!!!!
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Old 03-24-2014, 22:16   #7 (permalink)
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Put battery in, then connect via USB cable to PC,

IF PC will not show you a new hardware found your problem is POWER IC SUPERVISOR U800
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