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* If it's correct, measure the voltage at N411 pin 5 (~3.8V, fig. 9.5).
* If the voltage is missing, replace N411 (class A).
• If the voltage and the resistance of R646 are correct but the voltage at H650 is
still incorrect, then there's a foil damage and the phone is to be discarded.
Measure the resistance of C655 (>1 Mohms, class A, fig. 9.4).
• If it's incorrect, replace C655.
Check the soldering at D600 pin 93 (fig 9.2).
• If it's correct, measure the resistance from D600 pin 93 to H650 pad 1 (~0
ohms).
* If it's more there's a foil damage and the phone is to be discarded.
* If it's correct, replace D600 (class B, fig 9.2).
If the fault isn't fixed, send the phone to the next level.
4/00021-2/FEA 209 544/3.D
SH888, S868, Standare Electrical Repair
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(66)
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