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Nokia operates a policy of continuous development. Nokia reserves the right to make changes and improvements to any of the products described in this document without prior notice. Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental, consequential or indirect damages howsoever caused.
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RM-392; RM-393 ESD protection ESD protection Nokia requires that service points have sufficient ESD protection (against static electricity) when servicing the phone. Any product of which the covers are removed must be handled with ESD protection. The SIM card can be replaced without ESD protection if the product is otherwise ready for use.
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Our policy is of continuous development; details of all technical modifications will be included with service bulletins. While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If any errors are found by the reader, NOKIA MOBILE PHONES Business Group should be notified in writing/e- mail. Please state: •...
General Information RM-392/RM-393 product selection The RM-392 is the EU version of the telephone with a dual band transceiver unit designed for the GSM900 and GSM1800 networks. The RM-393 is the US version of the telephone with a dual band transceiver unit designed for the GSM850 and GSM1900 networks.
The table below gives a short overview of service devices that can be used for testing, error analysis, and repair of product RM-392; RM-393. For the correct use of the service devices, and the best effort of workbench setup, please refer to various concepts.
The flash programming can be done via the easy flash connector. If failed, then follow up the trouble shooting below. It is not possible to verify if there is a short circuit in control and address lines of MCU (UPP8M) and memory (flash) because BGA package is used in RM-392/393. Troubleshooting flow Figure 12 Easy flash programming fault Page 3 –10...
Variation of response between pixels with same level of input illumination. Resolution Usually the amount of pixels in the camera sensor; for example, RM-392/393 has a 640 x 480 pixel sensor resolution. In some occasions the term resolution is used for describing the sharpness of the images. Issue 1 COMPANY CONFIDENTIAL Page 5 –5...
– 2 meters. • If possible, compare the image to another image of the same scene, taken with a different device. Note that the reference device has to be a similar Nokia phone. Steps 1. Take several images of small objects in the distance of 1-2 metres.
RM-392; RM-393 System Module Battery endurance Nokia measurements of operation times in GSM900/1800 Talk time Battery: BL-4S 860mAh 400 mins Standby time Battery: BL-4S 860mAh 350 hours Note: Variation in operation times will occur depending on SIM card, network settings and usage.