no there is no yellow light. memory chips are soldered directly to motherboard, I pressed TOS chips but there is no any change.Zogging Hell wrote:Is the yellow light for the disk drive access coming on? If not I'd check - power supply, memory and TOS chips first. How did it die (what were the circumstances)?
lp wrote:Sorry to hear this. I would check the power supply. You should get the standard AT voltages at the pigtails that go to the floppy and HD.
frank.lukas wrote:... use a Romport Testkit for the Atari TT !
Cyprian wrote:ok, I've just checked the power supply and voltage and unfortunately it is consistent with standard AT voltage.
there is a battery on the board, my multimeter shows that is empty. is it normal?
Dal wrote:You can disconnect that battery, it's for the clock. However I'd be very surprised if it does anything to improve your situation.
What RAM do you have? You can try removing it, reseating it or swapping it (if you have spares kicking around?).
As Frank says, you could really do with a test cart - Try Nick Harllow (16/32), he may have a TT test cart. When you get it, you need to connect another machine to the serial port on your TT using a null modem cable (not sure which port?). Then a terminal emulator will be able to give an indication of what's not occurring.
Cyprian wrote:I'm more than happy, today my TT magically came to life :
I replaced reset button with another one (from my old broken STfm) and thats all.
It turned out that button was broken and always pressed.
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