Check Earpiece Using "Ext Microphone In Hp Speaker Out" Loop; Check Ihf & Ringing Tone Function Using "Buzzer - Nokia 2630 RM-298 Service Manual

RM-298; RM-299
Baseband Troubleshooting Instructions
7. Check if signal is detected at HS EAR L/R, shown in

Check earpiece using "Ext microphone in Hp speaker out" loop

Steps
1. Connect phone with Phoenix.
Audio Test window from Testing→ Audio test , as shown in Figure Phoenix audio test
2. Open the
window above.
3. Select Ext microphone in Hp speaker out.
4. Select Acc.Detection as Off.
5. Select Loop as On.
6. Input signal to HS MIC, as shown in Figure
100mVpp, 1kHz.
7. Check if sound is heard in the earpiece.
Check IHF & ringing tone function using "Buzzer"
Steps
1. Connect phone with Phoenix.
2. Open "audio test" window from "Testing -> Audio test", as shown in
above.
3. In "Buzzer" area, select suitable signal to be played, for example 1 kHz, Strength 5"
4. Select "Volume" as "On"
Issue 1
Figure 20 Test arrangement for microphone
4-pole jack plug for audio accessory above, for example
Figure 21 Test arrangement for of earpiece
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Figure 4-pole jack plug for audio accessory above.
Figure Phoenix audio test window
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