Showing posts with label repair. Show all posts
Showing posts with label repair. Show all posts
Thursday, April 16, 2015
Nokia C2 05 display light solution jumpers repair solution
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Tuesday, April 14, 2015
Nokia 2710NE Memory Card Solution MicroSD Card not detected problem repair solution
When the MicroSD card inserted on the device and nothing happens but it displays "memory card not inserted" something like that, this solution may help fix and repair the problem if the Nokia 2710 navigation edition has been damaged by any means like wet damaged or accidentally dropped.
The solution below shows the particular SMD components that needs to check, trace and replace to possibly fix the problem.
Repair tips:
1. Check the MMC card detection switch first, you can read a voltage on that area about 1.8 volts if unpressed and 0 volts if pressed.
2. Check and trace the MMC supply voltage it is marked with VSIOD and connected to MMC socket pin #4 then the pin #6 for groundings.
3. If both MMC power supply voltage and MMC detection switch is okay, the problem may lies on the ESD-EMI filter chip. Replace the ESD filter if necessarily.
The solution below shows the particular SMD components that needs to check, trace and replace to possibly fix the problem.
Nokia 2710ne MicroSD memory card problem solution
1. Check the MMC card detection switch first, you can read a voltage on that area about 1.8 volts if unpressed and 0 volts if pressed.
2. Check and trace the MMC supply voltage it is marked with VSIOD and connected to MMC socket pin #4 then the pin #6 for groundings.
3. If both MMC power supply voltage and MMC detection switch is okay, the problem may lies on the ESD-EMI filter chip. Replace the ESD filter if necessarily.
Sunday, April 12, 2015
nokia X2 02 light problem repair solution here
nokia 100 charging problem solution
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Nokia 5320 xpressmusic No network Signal problem hardware repair solution
Heres the solution that may possibly help fix and repair nokia 5320 xpressmusic No network signal problem issues. Before you may proceed to use this solution, ensure that the device firmware is okay, restored and already flashed and or updated. This solution may only works if the device suffered a water damaged or heavily dropped by the user.
Repair Hints:
Check the battery voltage across to the components highlighted on the solution below. These are filter coils and you need to have a voltage reading in this components about 3.7 volts., It is connected directly to the battery positive terminal. Replaced filter coils if found damaged, apply a jumper wire if found the supply voltage line is open or cut.
Check the voltages in these components highlighted in below solution, these are the output voltages from the voltage regulator chips that supplies to the RF IC and RF Power Amplifier chip. If there is no voltage readings in these components, check and replace the corresponding Voltage regulator chip.
1)Rework or replace the Power amplifier PA IC,
2) Replace the Voltage controlled crystal clock oscillator
3) Rework the RF IC or replace if necessary
Hope this helps solved to fix or repair a damaged Nokia 5320 No network problem issues.
Read more »
Repair Hints:
Check the battery voltage across to the components highlighted on the solution below. These are filter coils and you need to have a voltage reading in this components about 3.7 volts., It is connected directly to the battery positive terminal. Replaced filter coils if found damaged, apply a jumper wire if found the supply voltage line is open or cut.
5320 No network problem solution 1- RF Supply Voltage
Check the voltages in these components highlighted in below solution, these are the output voltages from the voltage regulator chips that supplies to the RF IC and RF Power Amplifier chip. If there is no voltage readings in these components, check and replace the corresponding Voltage regulator chip.
5320 No network problem solution 2- RF regulated supply voltages
1)Rework or replace the Power amplifier PA IC,
2) Replace the Voltage controlled crystal clock oscillator
3) Rework the RF IC or replace if necessary
Saturday, April 11, 2015
Nokia N78 Charger No response repair solution for not charging problem solution
Heres a complete line tracks of Nokia N78 charging circuit that may help fix and repair Not charging issues such as Charger No Response and Fake Charging.
The solution below shows the corresponding components that needs for check up and replacement if found damaged.
When a charger is being plug-in but there is no indication shows on the LCD screen Display. The problem may lies on an open chip fuse or a shorted diode. see picture above..
But ensure first that the charging pin connector is perfectly clean and not damaged before trying to check or replace the above showed mounted components.
IF the chip fuse, filter coils, chip diodes and capacitors is okay the problem may possibly lies on the Charging IC (BETTY IC). Try to reflow/rehea and rework before replacing it. A faulty Charging IC may also result to a fake charging, it means that it shows a charging indication on the LCD screen display but the battery does not charge up at all.
The solution below shows the corresponding components that needs for check up and replacement if found damaged.
Nokia N78 Charger No response solution
But ensure first that the charging pin connector is perfectly clean and not damaged before trying to check or replace the above showed mounted components.
IF the chip fuse, filter coils, chip diodes and capacitors is okay the problem may possibly lies on the Charging IC (BETTY IC). Try to reflow/rehea and rework before replacing it. A faulty Charging IC may also result to a fake charging, it means that it shows a charging indication on the LCD screen display but the battery does not charge up at all.
Friday, April 10, 2015
Nokia 2710ne camera hardware failure problem repair solution
This solution shows the camera module circuit of nokia 2710 navigation edition. If the camera failed to initiate, this solution might help fix and repair the problem. If already tried to restore its firmware but the problem still exists, this solution shows the tracks of the Camera module supply voltages that needs to check before attempting to replace the camera module assembly.
There are three power supply voltages that makes the camera module works and operate if one of these voltage were missing the camera will not function, and it shows camera hardware failure, camera on standby and either no reactions or indication at all.
A Camera on standby mode may fix by restoring its firmware. If an empty or black screen showed on the LCD display screen, the problem may lies on the camera module itself, replacing it will possibly solve the problem. So first ensure that the firmware is secured before proceeding to hardware troubleshooting.
Nokia 2710ne camera problem repair solution
A Camera on standby mode may fix by restoring its firmware. If an empty or black screen showed on the LCD display screen, the problem may lies on the camera module itself, replacing it will possibly solve the problem. So first ensure that the firmware is secured before proceeding to hardware troubleshooting.
Thursday, April 9, 2015
Nokia C6 Ringer Loud Speaker No Sound repair Solution
Heres the solution for Nokia C6 ringer, hands free or IHF loud speaker problem that no audio sound can be heard over the device when it is being activated.
If ever encountered this problem you may need to check and replace the IHF speaker if found damaged.
If the IHF speaker seems okay but still no sounds output, you may then proceed to check certain components which holds the IHF speaker audio signal.
The solution above shows the IHF speaker connection and line paths which can be used for checking or tracing.
The IHF audio signals is feeds from the audio IC (AVILMA) and then filtered by filter coils before it goes through to the IHF speaker.
Tips for Repairing Nokia C6 Ringer IHF speaker:
a) Check the IHF speaker or try to install a new replacement spare parts.
b) Check the speaker terminal and contact pads and ensure that it is clean.
c) Check the filter coils and ESD protection resistors and then replace if found damaged.
d) Rework the audio IC if all of the above is been done but the problem still exists, this may possibly fix Nokia C6 Ringer Speaker no sound problem
Read more »
If ever encountered this problem you may need to check and replace the IHF speaker if found damaged.
If the IHF speaker seems okay but still no sounds output, you may then proceed to check certain components which holds the IHF speaker audio signal.
Nokia C6 Ringer, Hands Free IHF Speaker No Sound Solution
The IHF audio signals is feeds from the audio IC (AVILMA) and then filtered by filter coils before it goes through to the IHF speaker.
Tips for Repairing Nokia C6 Ringer IHF speaker:
a) Check the IHF speaker or try to install a new replacement spare parts.
b) Check the speaker terminal and contact pads and ensure that it is clean.
c) Check the filter coils and ESD protection resistors and then replace if found damaged.
d) Rework the audio IC if all of the above is been done but the problem still exists, this may possibly fix Nokia C6 Ringer Speaker no sound problem
Saturday, April 4, 2015
nokia 110 mic problem repair jumper solution
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