Nokia RM-42 Service Manual
Also see for RM-42: Service manual
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ALS troubleshootingContextIf a phototransistor is broken, the display frame assy has to be replaced. The display frame assy has to be alsoreplaced if the calibration values are lost by some other reason (e.g. after replacing the NOR memory chip D3000).If the phototransistor is changed, the calibration value in the phone memory has to be changed to the defaultvalue ‘1’.Make sure that you have completed Display and keypad backlight troubleshooting (Page 6–26) first beforestarting ALS troubleshooting.RM-42BB Troubleshooting and Manual Tuning Guide Nokia Customer Care9241872 (Issue 1) Company Confidential Page 6–27Copyright ©2005 Nokia. All Rights Reserved. |
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