Nokia N900 Service Manual

TX tests
Prerequisites
Connect complete phone assembly with battery cover to a PC with Phoenix service software using a USB data
cable.
From the testing toolbar select WLAN Tx Test option shown below. This test can be used to verify TX
configuration and functionality. The default settings are sufficient for testing the TX operation, although
other channels and data rates are equally suitable. To start the test, select the Start option button:
1 Monitor the WLAN TX spectrum on a Spectrum analyser. (When making a radiated test ensure that other
WLAN devices are not transmitting as these may be detected as well, confusing the result). A typical
11MBPS TX spectrum is shown in figure below.
2 To finish the test select the Finish option button.
The difference between the two readings should be approximately 150mA and measures the transmit current
in 11MBPS, 802.11b mode of operation.
RX-51
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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