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NEC PC-Engine LT repaired for a friend

I post some screenshots and a video of the repairing of a NEC PC-Engine LT console.

Defect in the console:

Some capacitors have leaked acid on the pcb, i had to clean with the right product made especially for cleaning the pcb before proceeding with the replacement operation. The LCD screen is was disassembled to remove the dirt inside.

  1. January 21st, 2014 at 06:37 | #1

    Hello,

    I came across your repair. I am a also LT owner, and I am trying to repair mine (no picture, but backlight is on. sound also works). I have to replace the caps in exactly the same spot as you did. Can you maybe help me? It looks like the previous owner did a repair (very badly soldering skills), and some of the lines are gone. I am having trouble finding the right spot (has to be somwhere else now!) to solder them to. I have photos of the PCB, if you are interested in having a look at them it would be great – you might know a more than I do. I appreciate any help and any suggestion.
    Could help me?
    You can reply to my email address, and I will send you pictures.

    Best,
    Wolf

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  3. Marko
    April 27th, 2018 at 11:51 | #3

    Ciao, ho un PC Eengine LT che ha smesso di funzionare, si accende la spia verde ma non si vede/sente nulla. Potrebbero essere i condensatori? Come faccio a capire quali devo sostituire? Si trovano in commercio? Grazie 1000!

  4. April 27th, 2018 at 20:47 | #4

    @Marko

    Gli vedi immeditamente perche’ hanno rilasciato acido e magari corroso un po’ tutto quello che c’e’ attorno. Io comunque ti consiglio di cambiarli tutti!

  5. Marko
    April 27th, 2018 at 22:53 | #5

    @xAD / nIGHTFALL
    Ok grazie, ho ordinato un kit completo di condensatori per LT, spero che arrivino presto… E’ un lavoro fattibile anche da un “non professionista” oppure lo devo far fare ad un esperto?

  6. April 27th, 2018 at 22:56 | #6

    @Marko

    Bisogna avere buona manualita’ con il saldatore, rimuovere i condensatori SMD magari che hanno perso acido non e’ mai semplice, perche’ rischi di portarti via le piste dello stampato, succede anche a me che lo faccio spesso, purtroppo quei condensatori (diciamo tutti) sono la maledizione subito dopo le batterie che perdono acido pure loro.

  7. Marko
    April 27th, 2018 at 23:37 | #7

    Ok grazie x le info, proverò ad aprirlo per valutare la situazione… Ti chiedo un’altra cosa: per testare un condensatore (se non ha perso acido potrebbe essere funzionante) lo devo per forza dissaldare oppure lo posso testare anche quando è saldato sulla piastra?

  8. April 28th, 2018 at 10:47 | #8

    @Marko

    Lo puoi testare con un capacimetro , meglio se lo rimuovi, ma il mio consiglio e’ di sostituire tutti.

  9. Joseph Razmek
    March 28th, 2020 at 08:25 | #9

    I have an LT I tore down, I am having an issues locating the home of a part. Would you be able to provide some guidance if I provide a picture of the part?

  10. March 28th, 2020 at 16:58 | #10

    @Joseph Razmek

    let’s try :D

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