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PF768, Standard Electrical Repairs
Send the phone through the normal flow as soon as you've fixed the fault.
3.2 Visual check.
Make an outer visual check:
• Make sure the battery connector is intact and that there aren't any dirt or oxide at
the connector pins.
• Make sure there's no dirt or oxide at the battery connector pads.
• Make sure the system connector isn't damaged or dirty.
Continue at 3.3.
3.3
Current consumption with the On/Off key
pressed.
Insert a dummy battery into the phone.
• If the phone consumes current immediately, proceed to section 3.4.1.
Start the phone by pressing the On/Off key and check the current consumption.
• If the phone doesn't consume any current when you keep the On/Off key pressed
it most probably is due to faulty dome switches.
Open the phone and remove the dome switches.
Make sure the board isn't liquid damaged or dirty, especially around the On/Off key.
Dirt is washed away by using alcohol and a brush.
Mount a new dome switches (note that the board must be dry before mounting the
dome switches).
4/00021-2/FEA 209 544/11.C
Fig. 3.2
12
(68)
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