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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 06-25-2006, 09:13   #1 (permalink)
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can convert 8390 >8310 , 900/1800mz ?

any body can give me a solution for my 8390 phone.....
8390 > 8310 , 900/1800mz......

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Old 06-25-2006, 11:02   #2 (permalink)
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please search old pots you will get the solution
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Old 06-25-2006, 16:34   #3 (permalink)
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8390 to 8310

Convert 8390 to 8310
1. Jumper resistor is a resistor (not actually a resistor) with 0 ohm value, usually colored green with 0 markings.
Wire can also be use instead, but must not be very thin and should be as short as possible. Thin and long wire will introduce high inductive reactance and will result to weak received signal.

2. T500 can be taken from 3310 unit. It is located just above HAGAR, refer to your service manual to easily locate it. Also take note to its pin orientation during installation.

Bypassing Z551 with wires is not recommended,this will weaken the receiver sensitivity due to incorrect signal phase relationship.

3. Give special attention when installing VCO, improper positioning will result to no network activity

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Old 06-30-2006, 05:42   #4 (permalink)
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Thanks for the first your answers and help for me....rajiv007...,fonecarekerala....i will try and reply to.
[ sorry for the late]
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