Nokia RM-42 Service Manual page 198

Nokia Customer Care
Loop test
External Mic to Internal
Earpiece
External Mic to Internal
handsfree
Internal Mic to External
Earpiece
Page 6–40
Input terminal Output
terminal
XMICP and GND EarP and GND
EarN and GND
XMICN and GND EarP and GND
EarN and GND
XMICP and GND B2102 pads
XMICN and GND B2102 pads
B2100 (OUT/ HSEAR R P,
GND) HSEAR R N
and GND
HSEAR P,
HSEAR N and
GND
HSEAR R P,
HSEAR R N
and GND
HSEAR P,
HSEAR N and
GND
Company Confidential
Copyright ©2005 Nokia. All Rights Reserved.
BB Troubleshooting and Manual Tuning Guide
Path Input Different
gain [dB] voltag ial
(fixed) e output
[mVp- voltage
p] [mVp-p]
-4.5 1000 600
-5 1000 560
22.7 100 1360
RM-42
Outpu Outp
t DC ut
level curre
[V] nt
[mA]
1.2 NA
0 25m
A
(calc
.)
1.2 NA
9241872 (Issue 1)