Amiga 1200 flashing lights

[sturulez]

Today I turned on my amiga. I noticed a red screen and the power light flashing. Then after about 5 seconds the screen goes green then red again. It then continues to repeat this process. I disconnected the RAM expansion in the trap door and the PCIMA card but that had no effect.

My amiga is only about 3 years old as bought it from amigakit.com

Any idea how to resolve this problem?


Thanks

[amiga1260]

Open your Amiga 1200 and look for the kickstart roms and try to press on them. Turn the Amiga back on, maybe it helps.

Red means a Kickstart ROM error.

[sturulez]

Opened up the amiga. Pressed down on the ROMS. Turned it on and the red light appears. Seems like the green one has gone

[sturulez]

Okay, I've swapped the ROMS around with another amiga 1200 I have for spare parts. I seated both ROMS in turned on the amiga and the green light came on but nothing else.
HDD doesn't even boot. Screen is just blank. So I then thought about replacing the ROMS and sticking the original ones back in. Once I done that still nothing just the power light on.

Can someone tell me if there is a correct way of installing the ROMS. Do they sit over to the left or over to the right?


Thanks

[MelbourneBen]

I killed a set of roms by inserting them the wrong way, they got very hot and didn't work again. Isn't pin 1 listed on the motherboard?

For your reference:

•   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.

[sturulez]

Yes i did notice at one point when I inserted the ROMS and turned the machine on they did get hot. Guess that means they are fried?
 
Would you recommend upgrading to 3.1?

[AAACHIPSET]

ive had the red light flashing  everytime i soft reboot my main 1200 ..to reset i must turn it off an on from power ..so if red is kickstart  how come a hard reset works  an a soft reset  doesnt ?

[Oldsmobile_Mike]

ive had the red light flashing  everytime i soft reboot my main 1200 ..to reset i must turn it off an on from power ..so if red is kickstart  how come a hard reset works  an a soft reset  doesnt ?

Just throwing this out there, but I don't think your problem is in any way related to OP's.  You might want to look at something in the OS 3.5 ROM update, if it does the same sort of soft updates as 3.9.  Try booting off a plain old 3.1 Workbench disk, then hit Ctrl-Amiga-Amiga and see if you have the same problem.

[Oldsmobile_Mike]

Yes i did notice at one point when I inserted the ROMS and turned the machine on they did get hot. Guess that means they are fried?
 
Would you recommend upgrading to 3.1?

3.1 can be bought from AmigaKit or many ebay sellers for under $20.  IMHO no reason for anyone to not run it unless they're trying to build a truely "retro" system.  

[motrucker]

The red screen can be the ROMs, OR any card that is acting up. Best routine is to remove ALL cards, and see if it will re-boot. This should include anything connected to the clockport too.
If the ROMs were inserted incorrectly, they may well be fried - it doesn't take much. The 3.1 OS is a worthwhile upgrade, so go for it. Only a very few hard headed gamers will try to argue that case.
I wish the OP luck getting the machine up and running again....

[sturulez]

Okay. I purchased some new ROMS. Installed them by following the instructions. Powered the amiga up. It then successfully gets to workbench. Then suddenly the yellow screen appears. Turn the main power off and turn it back on again the power light appears with the yellow screen and flickers for a few seconds before the screen goes blank.

Is anyone able to shine any light on this matter?

Thanks.

By the way I have unplugged the PCIMA card, 4mb expansion card, HDD, floppy drive and still the yellow light comes on

[Oldsmobile_Mike]

Have you checked your capacitors?

[paul1981]

Check your voltages as well if possible. However, assuming you have tried another PSU, it is unlikely them both to be faulty.

[AAACHIPSET]

Just throwing this out there, but I don't think your problem is in any way related to OP's.  You might want to look at something in the OS 3.5 ROM update, if it does the same sort of soft updates as 3.9.  Try booting off a plain old 3.1 Workbench disk, then hit Ctrl-Amiga-Amiga and see if you have the same problem.

have  2 different  flashdrives ..one is with os3.5 ..but main one is with 3.1 with amigasys4aga installed  ..machine has always done it as long as i can remember ..maybe after i put the bizzard030 in ..but doesnt matter now  as it does it  whether i have hardware installed or not...there is a external cdrom flashcard 030/50  with scsi ..usb  and indvision aga ..could  blame power  but doesnt  crash as long as usb is enabled after full boot ..can run doom off the 2 gig usb  for hours  no problems ..still havent  actually  screwed it back together  for 12 months now ..wanna change cables an tidy inside ..just never get around  to it ..2 other 1200s  are in rebuild mode so got 3 going at moment  ..all working  ..took bits from 6 different machines to make 2 more ..

[sturulez]

Okay I've replaced the power supply. Has made no difference. Though I'd connect the Floppy disk drive, but I get no ticking noise when I turn the machine back on. If it is the capacitors which ones do I need to check?

Thanks