Nokia E62 Service Manual page 137

RM-88
BB Troubleshooting and Manual Tuning Guide
Loop test
External Mic to Internal
Handsfree
Internal Mic to External
Earpiece
Measurement data
Figure 39 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is connected.
Figure 40 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is connected.
Issue 1
Input terminal Output
terminal
XMICP and GND B2102 pads
B2100 (OUT/ XEARL and
GND) GND
XEARR and
GND
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Path Input Differen
gain volta tial
[dB] ge output
(fixed) [mVp- voltage
p] [mVp-p]
32 100 -
35 100 1360
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Outpu Outp
t DC ut
level curre
[V] nt
[mA]
0 80m
A +/-
10m
A
0 NA
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