Nokia 5130 User Manual

Audio troubleshooting
Audio troubleshooting test instructions
Differential external earpiece and internal earpiece outputs can be measured either with a single-ended or
a differential probe.
When measuring with a single-ended probe each output is measured against the ground.
Internal handsfree output is measured using a current probe, if a special low-pass filter designed for
measuring a digital amplifier is not available. Note also that when using a current probe, the input signal
frequency must be set to 2kHz.
The input signal for each loop test can be either single-ended or differential.
Required equipment
The following equipment is needed for the tests:
•
Oscilloscope
•
Function generator (sine waveform)
•
'Active speaker' or 'speaker and power amplifier'
•
Sound level meter
•
Current probe (Internal handsfree DPMA output measurement)
•
Phoenix service software
•
Battery voltage 3.7V
Test procedure
Audio can be tested using the Phoenix audio routings option. Three different audio loop paths can be
activated:
•
External microphone to Internal earpiece
•
External microphone to Internal handsfree speaker
•
Internal microphone to External earpiece
Each audio loop sets routing from the specified input to the specified output enabling a quick in-out test.
Loop path gains are fixed and they cannot be changed using Phoenix. Correct pins and signals for each test
are presented in the following table.
Phoenix audio loop tests and test results
The results presented in the table apply when no accessory is connected and battery voltage is set to 3.7V.
Earpiece, internal microphone and speaker are in place during measurement. Applying a headset accessory
during measurement causes a significant drop in measured quantities.
The gain values presented in the table apply for a differential output vs. single-ended/differential input.
RM-495; RM-496
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –27
Copyright © 2008 Nokia. All rights reserved.

Nokia 5130 Specifications

General

Display	TFT, 256K colors
Internal Memory	30MB
Memory Card Slot	microSD, up to 16 GB (dedicated slot)
Camera	2 MP
Battery	Removable Li-Ion 1020 mAh battery (BL-5C)
Dimensions	107.5 x 46.7 x 14.8 mm, 65 cc (4.23 x 1.84 x 0.58 in)
Weight	88 g (3.10 oz)
Connectivity	Bluetooth 2.0, A2DP
Network Technology	GSM
2G bands	GSM 850 / 900 / 1800 / 1900
GPRS	Class 10
EDGE	Class 10
Status	Discontinued
SIM	Mini-SIM
Call records	20 dialed, 20 received, 20 missed calls
Primary Camera	2 MP
Alert types	Vibration; Downloadable polyphonic, MP3 ringtones
Loudspeaker	Yes
3.5mm jack	Yes
Radio	Stereo FM radio, RDS
Messaging	SMS, MMS, Email, IM
Browser	WAP 2.0/xHTML, HTML
Games	Yes + Downloadable
Java	Yes, MIDP 2.1
Stand-by	Up to 300 h
Talk time	Up to 6 h
Music play	Up to 21 h
Resolution	240 x 320 pixels
Operating System	Nokia Series 40
Video	176x144@15fps
Colors	Red, Blue
Phonebook	1000 entries