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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 09-27-2005, 11:30   #1 (permalink)
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3100 no.5 not working


No.5 not working in my set. Could anyone help with the track solution.
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Old 09-27-2005, 17:34   #2 (permalink)
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i think one line goes to ground and other one goes to upp.
check with working pcb will help you more.
br.
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Old 09-27-2005, 17:37   #3 (permalink)
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i think one line goes to ground and other one goes to upp.look like no component connect to those lines.if ur ground line ok then u have to work with upp test point.
check with working pcb will help you more.
br.
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Old 09-27-2005, 18:18   #4 (permalink)
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peel back keypad membrane and clean board. reassemble and try..

also check if keypad is making good presure on membrane...

test continuity of outer ring of keypad to ground. if no continuity, you can join that out ring to next key outer ring..
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