Hi, Guest
05-23-2014, 03:50 PM
(This post was last modified: 05-23-2014, 03:50 PM by TheRealAnubis.)
Hi,
I just got my first TI-99 and it doesn't work. Tested the power supply - good, tested the internal power board - good. No video (black screen), and the sound IC gets incredibly hot in about 10 seconds.
The sound IC is SN94624N and the video IC is TMS9918ANL.
I'm not finding a source for the audio chip at all, and all of the video IC's seem to be in Hong Kong.
I wrote TI and asked if the SN76489 is considered a drop in replacement for this IC, but I haven't heard from them yet...
Anyone have any working spares?
I just got my first TI-99 and it doesn't work. Tested the power supply - good, tested the internal power board - good. No video (black screen), and the sound IC gets incredibly hot in about 10 seconds.
The sound IC is SN94624N and the video IC is TMS9918ANL.
I'm not finding a source for the audio chip at all, and all of the video IC's seem to be in Hong Kong.
I wrote TI and asked if the SN76489 is considered a drop in replacement for this IC, but I haven't heard from them yet...
Anyone have any working spares?