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3.4.5 The phone doesn't consume any current when
the On/Off key is pressed.
Open the phone and check for liquid damages.
Make sure the system connector pads aren't damaged or burnt and that the keypads
aren't broken or dirty, especially the On/Off key (fig. 3.3).
Fig. 3.3
Give the board power.
Make sure there's VBATT voltage at the marked pad of the On/Off key pads (fig.
3.3).
• If VBATT is missing there's a foil damage and the phone is to be discarded.
• If VBATT is correct, measure the resistance from the other pad (ONSRQ, fig.
3.3) to V702 pin 1 (fig. 3.2, ~0 ohms).
* If the resistance is incorrect there's a foil damage and the phone is to be dis-
carded.
* If the resistance is correct, replace V702.
If the fault remains, send the phone to the next level.
4/00021-2/FEA 209 544/3.D
SH888, S868, Standare Electrical Repair
17
(66)
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