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Diodes gone in inspiron 1525

''is it a big job to replace diodes in the rectifier circuit of an inspiron 1525

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  • lahtac087057 Nov 17, 2009

    im was just going by an answer that i recieved from my first posting. the symptoms are the computer powers on as normal, but the screen is blank, no cursor or anything. to the left of the power button on the inspiron 1525 there are three symbols that look like padlocks, the first one is lit and stationary,the other two are flashing. the computer is not responsive to any keys.

  • Jon Hunter May 11, 2010

    Why do you think you need to replace the rectifier circuit? Most of that circuitry is in the power brick and they are too cheap to even bother opening up.
    If you are having a battery charge issue that is due to a fault on the power/USB sub board.
    Let me know exactly what your symptoms are and maybe I can help.
    JC

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Trust me. You're much better off buying a new computer than having to pay someone to solder the small diodes in a laptop motherboard.

Posted on Nov 17, 2009

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The padlock lights are for numlock,caps lock, and scroll lock. The fact that two are flashing may indicate problems with keyboard.
One thing you can also try is playing a music CD - if it plays it is probably your lcd inverter.
1. Make sure no keys are stuck on the keyboard - look carefully.
2. If that doesn't do it then try to get an external keyboard - I think you will need a USB as that model has no PS2 plug. Plug the keyboard in before starting and see if it will override the internal kbd.
3. Have you tried to access BIOS using the F2 key right after powering on?
Let me know what you find.
JC

Posted on Nov 17, 2009

  • Jon Hunter Nov 17, 2009

    I ran across some posts on other Dell laptops that attribute the flashing leds to a memory problem. You may try removing 1 ram block if there are two and trying 1 ram block in each slot. Remember to static discharge (ground) yourself first (touching the metal case of a desktop works fine.
    JC

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