Nokia N900 Service Manual

In summary these two Self tests provide a simple means of ensuring the Host engine is able to communicate
with the WLAN module and check the interface to BTH. More detailed WLAN performance test is covered in
WLAN functional test section.
WLAN functional tests
On/Off test
Prerequisites
A flash adapter connected to a PC with Phoenix service software is required.
From the testing toolbar select WLAN Configuration option. This opens the WLAN configuration dialogue
box below. Selecting the Power state option button (as indicated), the WLAN can be turned ON and OFF:
1 With Power State set to OFF, measure the dc power supply current consumption of the flash adaptor.
2 Next return the Power state to ON and re-measure the dc power supply current of the flash adaptor.
The difference between the currents in (1) and (2) should be between 190 to 220mA. When WLAN is ON, the
firmware has been downloaded and the WLAN module is in the receive state. When OFF WLAN is powered
down.
RX-51
BB Troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 3 –59
Copyright © 2009 Nokia. All rights reserved.

Nokia N900 Specifications

General

RAM	256 MB
Internal Storage	32 GB
Operating System	Maemo 5
Battery	Removable Li-Ion 1320 mAh battery (BL-5J)
Weight	181 g
Network	GSM / HSPA
SIM	Mini-SIM
GPU	PowerVR SGX530
Memory Card slot	microSD, up to 16 GB (dedicated slot)
Loudspeaker	Yes, with stereo speakers
3.5mm jack	Yes
GPS	Yes, with A-GPS; Ovi Maps
Sensors	Accelerometer, proximity, compass
Talk time	Up to 6 h 30 min (2G) / Up to 4 h 30 min (3G)
Display	3.5 inches, 800 x 480 pixels
Processor	TI OMAP 3430
Camera	5 MP
Dimensions	110.9 x 59.8 x 18 mm
Connectivity	Wi-Fi 802.11 b/g, Bluetooth 2.1
Radio	Stereo FM radio
Browser	HTML, Adobe Flash