Hi,
I get the following screen from a 1040STF Revision B:
nicecolour.JPEG (68.53 KiB) Viewed 2561 times
Everything seems to work fine, just no colours other than pink and black. It is a great colour, but others would be nice. Anybody know or guess what causes it? I don't have a diagnostic cartridge yet.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase. viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
I don't think a diag cart will help much with that.
What sort of cable are you using? A lot of STFs are missing the composite signal so that may be the problem, I'd suggest starting with the socket, make sure there are no dry/cracked solder joints.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Hi exxos and Johnnie,
sorry I am connected to an LED Monitor via VGA cable using an adapter from the Exxos shop. The same cable, adapter and monitor don't have that problem on any other ST. So maybe the socket connections?
russellnash wrote: ↑Thu Apr 08, 2021 10:29 am
Hi exxos and Johnnie,
sorry I am connected to an LED Monitor via VGA cable using an adapter from the Exxos shop. The same cable, adapter and monitor don't have that problem on any other ST. So maybe the socket connections?
I'd start with the socket, yes.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
I've seen similar with a corroded Shifter pin. A reseat of the chip fixed it.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
The very first thing I did was change the Shifter from another machine. So, no signal arrives at pin 6, so no Green. Been trying to find a pin layout of the Shifter, the schematics I have found are either illegible or I don't understand them. Is pin 6 on the socket pin 6 on the chip?
russellnash wrote: ↑Thu Apr 08, 2021 3:09 pm
The very first thing I did was change the Shifter from another machine. So, no signal arrives at pin 6, so no Green. Been trying to find a pin layout of the Shifter, the schematics I have found are either illegible or I don't understand them. Is pin 6 on the socket pin 6 on the chip?
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase. viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
