Trouble Shooting Guide, Standard
4/00021-2/FEA 209 544/19 E 20(29)
5.2.2 Red or green top indicator out of order
Open the phone and check for liquid damage.
Make sure the double LED (H650) is not incorrectly soldered.
If the solder joint is correct, power up the board and start it by pressing the ON/Off key.
Measure the voltage at pin 1 of H650 (2.70 – 2.85 V).
If the voltage is correct, replace H650. Assemble the phone and test as described in section
5.2.
If the voltage at pin 1 of H650 is incorrect, measure the resistance of R646 (220 ohms).
If the resistance is incorrect, replace R646.
If the resistance is correct there is a foil damage, send the unit on according to the local
company directives.
If the fault remains, send the unit on according to the local company directives.
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