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Tatung: A history of a bad luck

About 3 months ago i have repaired my Tatung Einstein with stability problems, after a few minutes the screen was filled with random characters. Below the replacement parts:

  • 2 x 74LS157 (IOO6/IOO7) Multiplexer.

On the same day has broken the Tatung TC-01 Monitor, the vertical sync is died without any way of adjustment. Yesterday, instead of celebrating Easter, i have tried to repair the monitor, the faulty component was as follows:

  • 1 x TDA 2578A Sync Mixer.

Very happy i have connected the Tatung Einstein to the monitor, i have tried a few games and after 15 minutes the Tatung (computer) decided to die. I spent more hours to understand what could have happened, oh! found it, some ram burned. Below the replacement parts:

  • 3 x RAM 4264 (IO11/IO10/IO8)

What could happen again?

I also did the dump of the eprom (rom), the download below.

  1. Saj
    July 3rd, 2019 at 14:28 | #1

    Hi

    How did you connect the Tatung monitor to the C64?

    Thanks

  2. July 4th, 2019 at 09:16 | #2

    @Saj

    I don’t remember, too much time has passed :( surely i have used an home made interface that was given with the monitor to allow to use the video composite.

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