Nokia 1616 Ringer Ways Problem and IC jumper solutions

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              In this post I am explaining the all about Nokia 1616 hardwarerepair solution for solving all Ringer, Earpiece and Loud Speaker(Ringer/buzzer) complaints. To solve, fix and servicing this type of problems ofNokia 1616 Ringer, Earpiece and Loud Speaker (Ringer/buzzer) not workingproperly or not working
In Nokia 1616 earpiece and ringer circuit have been combinedand connected to a single speaker unlike the old types which have bothdifferent speaker in each circuit. Nokia 1616 has only one speaker (Ringer / buzzer)and it will switch using Earpiece and Loud Speaker switcher IC through thesoftware program as per the user requirements 
     
In Nokia 1616 Ringer, Earpiece and Loud Speaker(Ringer/buzzer) circuit consists of main power IC, Ringer IC, Earpiece and LoudSpeaker switcher IC and all other supporting components like Capacitor,Resisters and Coils   
  
Main complaints are:
Nokia 1616 Ringer / buzzer no sound problem, Nokia 1616 LoudSpeaker no sound problem, Nokia 1616 Earpiece no sound problems

This type of main complaints solutions are:
Check Ringer / buzzer speaker. If the Ringer / buzzer speakerfailure it causes no sound problem. Checking value (using multi meter) of this Ringer/ buzzer speaker is approximately   15to35 Ω. If the value is nearby this it is working, value more than 75Ω it hassome errors so we want to change the Ringer / buzzer speaker for solving thisproblem   
    
Other complaints are:
Nokia 1616 Ringer / buzzer ways problem, Nokia 1616 LoudSpeaker ways problem, Nokia 1616 Earpiece ways problem, Nokia 1616 Ringer ICburned or gone then also the same complaint are coming
This type of complaints solutions are:
Check Ringer / buzzer speaker ways. If the ways are not correct,apply circuit jumpers for rebuilding the connection

The ringer IC not working, change ringer IC or apply RingerIC Jumpers 
   
The  below solutionpicture shows the line paths and layout of components for the Earpiece Speaker.You may trace all of those corresponding components if having trouble with theearpiece or Earpiece Audio sound problem. The positive and negative audio signalwhich flow across into four coils, a chip resistor 4.6 ohms and an EMI filterchip before it being feeds to the Speaker terminal pads and so on to thespeaker.

Nokia 1616 Earpiece Speaker components layout and line paths

Nokia 1616 Ringer Ways Problem and IC jumper solutions
Nokia 1616 Ringer Ways Problem and IC jumper solutions

The two remaining components are chip resistors, theseresistors are fusible resistors with has a zero ohms value. Both positive andnegative Audio signals also flow into the two filter coils and the EMI filterchip then feeds trough to the speaker.
All those components are very easy to check and you may finda replacement on it if found busted or damaged. If all of its correspondingcomponents were already replace and making sure that all of it workingperfectly okay but the problem still exists and no audio sound can be heardover the speaker, we may now consider that the problem lies on the line pathsbetween the main IC or the IC itself is being damaged connections.

The final solution for this is to reheat, rework the main ICcomponent. Be sure to check the line paths of corresponding solder ball bumpsof the IC component which holds the earpiece or the  ringer loud speaker, after reballing it and inplacing it back.

Just be careful and have a good heat temperature and airflow control using you reworking station in handling the main IC module.

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