Nokia RM-333 Service Manual page 85

RM-333; RM-334; RM-335
BB Troubleshooting
Loop test Input
terminal
Digital Acoustica
Mic to l input,
External 1KHz sine
Earpiece wave
Measurement data
Earpiece signal
Figure 14 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is connected
Integrated handsfree signal
Figure 15 Single-ended output waveform of the Ext_in_IHF_out out loop measurement when speaker is connected
External output from AV
Issue 2
Output Path gain
terminal [dB]
(fixed)
HS_EAR_L NA
& GND
(measured at speaker pads), no filter is used
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Input Outout
voltage voltage
[mVp-p] [mVp-p]
94 dB SPL 100
Output DC Output
level [V] current
[mA]
NA
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