PF768, Standard Electrical Repairs
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3 Doesn’t start.
3.1
Find out if the phone starts by pressing the
On/Off key.
Insert a fully charged battery and press the On/Off key.
•
If the phone doesn’t start, proceed to section 3.2.
•
If the phone starts, turn off the phone and check the charging function by con-
necting a charger into the system connector.
* If the phone doesn’t start or doesn’t charge, send the phone to the next level.
* If the phone starts (lights the background illumination, asks for SIM or PIN,
seeks net…) and the charging function is ok then there’s probably nothing
wrong with the phone or the fault is intermittent.
Open the phone and make a visual check of the circuit board.
Check for eventual liquid damages at the circuit board and dirt or oxide at the sys-
tem and battery connector pads.
Fig. 3.1 shows typical dirt at the battery connector pads.
Fig. 3.1
Make sure the dome switches isn’t damaged, especially at the On/Off key.
Make sure D600, D610 and D620 are soldered correctly (fig. 3.2).
