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IndustryArena Forum > MetalWorking Machines > Hitachi Seikis > HT-20 Green Machine with Multi control having monitor problems
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  1. #1
    Join Date
    Jan 2011
    Posts
    27

    HT-20 Green Machine with Multi control having monitor problems

    Hey all,

    I have a 1986 Hitachi HT-20 with the multi control. Right now, when it goes to boot up, there's a bunch of squigly lines on the screen, and then all the letters turn to jibberish. All the background images are correct, but nothing is legible. Unfortunately, I don't know this control well enough to navigate it without text! I'm trying to figure out how to fix this... I finally wrote a post-processor that does what I want.

  2. #2

    Re: HT-20 Green Machine with Multi control having monitor problems

    Quote Originally Posted by B.Reilly View Post
    Hey all,

    I have a 1986 Hitachi HT-20 with the multi control. Right now, when it goes to boot up, there's a bunch of squigly lines on the screen, and then all the letters turn to jibberish. All the background images are correct, but nothing is legible. Unfortunately, I don't know this control well enough to navigate it without text! I'm trying to figure out how to fix this... I finally wrote a post-processor that does what I want.
    The LCD display must be broken, need to replace with a new one.
    http://cncmakers.com/cnc/controllers/CNC_Controller_System/CNC_Retrofit_Package.html

  3. #3
    Join Date
    Jan 2011
    Posts
    27

    Re: HT-20 Green Machine with Multi control having monitor problems

    I'm having a hard time blaming the LCD when the background images are fine- I wonder if there's a board that is responsible for just the overlay text that may be going bad...

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