i dont have schematics for this can someone have this please share. i already tried new cmos battery the problem is laptop turns on but after i shut down cannot turn on again but when i insert low voltage cmos battery i can turn on the laptop and when i shut down i can turn on many times but the problem is laptop beeps 5 short
5 short beeps is not an issue. U can put the beeps off by cutting the track of "PC BEEPS". Look for it in the sound ic datasheet. For example , to stop this annoying beep on dell cedar 13269_1 mb, just cut the track of pin12 of sound ic. No more beeps.
But we should try to find why it doesnt turns on when 3v cell inserted.
thanks for the response mcplslg123 do you have schematic for this model please if this is the case i need to find out what type of sound ic does this model
yes i have 3v on switch after inserting 3v cmos battery but when i removed again the cmos battery and start the laptop with charger only plugged in starts automatically and it takes 20 secs to display first fan spinning then stops and then charger light off and then goes on and display comes even i reinsert the 3v cmos battery starts and go to post error date and time not set and when i shut down the laptop cannot turn on again
thanks but i cannot find on the board the r2502 c2503 voltage on D2501 pin 2 have 3v on 3D3V_AUX_S5 and the on Q2505. i have attached the image of the rtc on the board please help on this
as per the schematics attached by caspian, you need to cut the pin12 track of the sound ic. No need to remove any components. Its labelled "audio pc beeps". Just do it with 100% confidence as i have done this on many many dells and sound from speakers and headphone will work perfectly.
yes i have 3v on switch after inserting 3v cmos battery but when i removed again the cmos battery and start the laptop with charger only plugged in starts automatically and it takes 20 secs to display first fan spinning then stops and then charger light off and then goes on and display comes even i reinsert the 3v cmos battery starts and go to post error date and time not set and when i shut down the laptop cannot turn on again
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