Nokia RM-506 - Page 120

Loop test Input
terminal
Output
terminal
Path
gain
[dB]
(fixed)
Input
voltage
[mVp-
p]
Output
voltage
[mVp-p]
Output
DC level
[V]
Output
current [mA]
AV Mic to AV
Earpiece
HS_MIC &
GND
HS_EAR_L &
GND
100 1.2 NA
HS_EAR_R &
GND
AV Mic to HP
Earpiece
HS_MIC &
GND
EarP & GND 100 1.2 NA
EarN & GND
HP Mic to AV
Earpiece
Acoustical
input, 1kHz
sine wave
HS_EAR_L &
GND
NA 94 dB
SPL
100 NA
HS_EAR_R &
GND
External Mic in
Internal
handsfree out
HS_MIC &
GND
B2153 1000
B400
Measurement data
Earpiece signal
Figure 38 Single-ended output waveform of the AV Mic to HP Ear measurement when earpiece is connected.
Integrated handsfree signal
RM-505; RM-506
BB Troubleshooting and Manual Tuning Guide
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