Nokia N72 Service Manual

Figure 60 Test points for oscilloscope - top
Receiver troubleshooting
Introduction to Rx troubleshooting
Rx can be tested by making a phone call or in the local mode. For the local mode testing, use Phoenix service
software.
The main Rx troubleshooting measurement is RSSI measurement. This test measures the signal strength of
the received signal. I and Q branches can be measured separately. For GSM RSSI measurement, see GSM Rx
chain activation for manual measurements / GSM RSSI measurement (page 7–10).
In GSM, the input signal can be either a real GSM signal or a CW signal that is 67.771 kHz above the carrier
frequency.
RM-180
RF Troubleshooting and Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 7 –9
Copyright © 2006 Nokia. All rights reserved.

Nokia N72 Specifications

General

Panel type	TFT
Display diagonal	2.1 \
Display resolution	176 x 208 pixels
Display number of colors	262144 colors
Internal memory	20 MB
Zoom capability	20x
Rear camera type	Single camera
Rear camera resolution	1600 x 1200 pixels
Video capture resolution (max)	352 x 228 pixels
Multimedia Messaging Service (MMS)	Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network
Ringer type	Polyphonic
Form factor	Bar
Product color	Violet
Talk time (2G)	3.40 h
Battery capacity	970 mAh
Standby time (2G)	260 h
2G standards	GPRS

Weight and Dimensions

Depth	53 mm
Width	109 mm
Height	18 mm
Weight	124 g