Receiver Unit (Speaker & Key Tone) - Nokia 2228Arte Service Manual

RM-377
BB Troubleshooting and Manual Tuning Guide
Receiver Unit (speaker & key tone)
a. Check receiver has voice output by press keypad and #190# echo loop test mode.
b. Change a new component to confirm receiver failure or not.
c. Check R807 and R08 were soldering well and resistance is normal. (4.7R_1%)
d. Check C616 have damage or not. (Short phenomenon)
e. Change a QSC6030 to confirm main chip failure.
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