Amiga 1200 no display with TF1230

[geoff]

Hi All.

I recently purchased a TF1230 accelerator card however upon adding to my Amiga 1200 I get no video output and the power light blinks. As soon as I remove the card it all works fine. Also works fine when I place my existing 8mb ram expansion into the slot. Have tried a new PSU but still no luck.

Does anyone have any ideas?

Geoff.

[indigolemon]

Have you tried pushing the card home then pulling it back a couple of mm?

[geoff]

Originally Posted by indigolemon

Have you tried pushing the card home then pulling it back a couple of mm?

Hi yeah tried that sadly still the same ?

[Marce]

clean the 150 pin connector of the A1200 motherboard using alcohol (both sides)

[geoff]

Originally Posted by Marce

clean the 150 pin connector of the A1200 motherboard using alcohol (both sides)

Thanks Marce - I’ll give that a go this weekend, fingers crossed

[japhi]

You need at least Kickstart 3.1 with the TF1230

[geoff]

Hi all, tried cleaning the connectors with IPA sadly still no luck.

Japhi - thanks for the above I currently have 3.2 Roms installed.

Any other ideas?

[lilwshu]

You're probably at the point where you need to get in touch with who sold it to you to ask for support/a replacement card.

[Leon Besson]

Originally Posted by geoff

Hi All.

I recently purchased a TF1230 accelerator card however upon adding to my Amiga 1200 I get no video output and the power light blinks. As soon as I remove the card it all works fine. Also works fine when I place my existing 8mb ram expansion into the slot. Have tried a new PSU but still no luck.

Does anyone have any ideas?

Geoff.

Is the CPU socketed or Soldered on directly? If socketed, it is in properly/pushed in the right way round?

You mention blinking power light. How many times does it blink? This is an error code;

These are the Kickstart error colour codes.

Red - An error in the Kickstart rom as detected.
Green - An error in the Chip Ram was detected.
Blue - An error in the custom chip set was detected.
Yellow - The CPU encountered an error before the system's error-trapping code (the code the calls up the Guru) was in place.
Black - No CPU detected.
Grey - CPU Passed the test.
White - CPU failure.

I suggest that you carefully try reseating the Kickstart ROM, as it can 'creep' out of it's socket slightly over time.

Here are the keyboard blink error codes, but I think your problem lies with re-seating the socketed chips. When the Amiga is first switched on the keyboard might blink a number of times to indicate one of the following errors.

One Blink = ROM (Kickstart) Checksum failure
Two Blinks = RAM test failed
Three Blinks = Watchdog timer failed

[geoff]

Originally Posted by Leon Besson

Is the CPU socketed or Soldered on directly? If socketed, it is in properly/pushed in the right way round?

You mention blinking power light. How many times does it blink? This is an error code;

These are the Kickstart error colour codes.

Red - An error in the Kickstart rom as detected.
Green - An error in the Chip Ram was detected.
Blue - An error in the custom chip set was detected.
Yellow - The CPU encountered an error before the system's error-trapping code (the code the calls up the Guru) was in place.
Black - No CPU detected.
Grey - CPU Passed the test.
White - CPU failure.

I suggest that you carefully try reseating the Kickstart ROM, as it can 'creep' out of it's socket slightly over time.

Here are the keyboard blink error codes, but I think your problem lies with re-seating the socketed chips. When the Amiga is first switched on the keyboard might blink a number of times to indicate one of the following errors.

One Blink = ROM (Kickstart) Checksum failure
Two Blinks = RAM test failed
Three Blinks = Watchdog timer failed

Hiya, thanks for the reply. The green power blinking is constant. It continually blinks for over a minute (till I power off). As soon as I remove the card it’s solid and works fine. When I put my old 8mb fast ram card in that works fine too.

I’ll give the kickstart reseating a try later

[Superman]

I have one of these cards and mine works fine although it was extremely hard to get it to fit onto the motherboard. It was extremely tight and I had to pretty much take the motheboard out and even then it took quite a bit of brute force for me to get it to fit. If you had the same problems then I would check the connector on the card to to make sure the pins haven't got damaged or bent during the fitting process.

[Jope]

If it seems to take an awful lot of force to fit, it's important to check whether you have a motherboard that is missing the chamfer on the card edge where the turbo plugs in to. A chamfer should be filed or sanded, similar to a PCI card edge.

[Leon Besson]

Looking at this, it might be worth contacting the seller and asking for a replacement or refund Bromigo!

If they are not prepared to do this, then feel free to Name and Shame on here so none of us have to go through the same.

[geoff]

Hi all - I finally found the root cause - thanks to you Leon I was inspired to swap the kickstarts from 3.2 to 3.1. And now it’s solid as a rock. Thank you to everyone for your help and advise. I’m a happy man tonight :-)

[Leon Besson]

Originally Posted by geoff

Hi all - I finally found the root cause - thanks to you Leon I was inspired to swap the kickstarts from 3.2 to 3.1. And now it’s solid as a rock. Thank you to everyone for your help and advise. I’m a happy man tonight :-)

Welcome Mang!