LG PX8700 Service Manual page 109

Checking Flow
SETTING : Insert the mini SD card into the phone
START
Level of SD_DETECT at C136
of CON105 is 'Low' ?
Level of +2.85V_SD at C313
is 2.85V ?
Levels of SD_CMD(C141)
and SD_DATA[0]~DATA[3](C137,138,139,142)
are 'High' ?
Access a file in the micro SD
; play music or view a PIX/FLIX
Frequency of SD_CLK(C140) is about
19.2MHz ?
THE MINI SD CARD WILL BE DETECTED
No
Yes
No
Yes
No
Yes
No
Yes
Check the soldering of CON105
Replace U302
Replace the MSM
Replace the main or sub board