Normally the cover is off but as mike says its been on lately to stop coil damage don't worry it will be removed when I've finished. I will be updating later tonight, wish me luck :eyebrows:
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Normally the cover is off but as mike says its been on lately to stop coil damage don't worry it will be removed when I've finished. I will be updating later tonight, wish me luck :eyebrows:
We're all waiting on you, Andrew, with fingers crossed!
Hi Andy,
Good luck with the upgrade. It looks OK so far. Make sure you check everything when you are fresh.
For those who are interested in the internal regulator upgrade, but lack the experience or the time to do it, I have set up a new upgrade service on the mainland in a trading association with ACS Ltd. The SL1200 regulator upgrade is the first upgrade offered and there will be more equipment upgrades for popular items of equipment in the near future.
Here is alink to the details of the new upgrade service at ACS Ltd :-
http://theartofsound.net/forum/showt...290#post340290
Regards
Paul
Your not gonna believe this I've left my tools at work so I cant tune the external psu upto 27V :steam:. Man its been a long day!! Give you all an update tomorrow (promise!!)
Right. I have a problem :steam: I have set the psu to 27v checked it with a multimeter. Checked the soldering, checked I removed all the correct components. Battened everything down, replaced the platter and turned the psu on, thats when things went wrong :steam: I heard a small click, smelled some smoke and then noticed the platter was going round at a fast rate without stopping. The power button on the 1210 seems to have stopped working alongside the 33/45 rpm switches. Any ideas:scratch: or do I need a new pcb
:steam:
Oh dear. I believe that Hamish experienced a similar problem with his 1210 and I'm not sure how it was resolved but I believe he was looking for a new motor drive IC.
I would disconnect all the power feeds to the main board and test the +21V, +9.4V and +5V reg outputs first. I hate to be premature but you might have blown the main board.
A small click is very synonymous with an IC popping off. Usually caused by the application of an inverse voltage. I have seen it happen.
Are you sure you got the red +27V into the correct hole?
I'm at work right now so will investigate tonight
Feel for you Andrew and sincerely hope it isn't anything too serious, obviuosly stuf like this needed like the proverbial hole in the head !
Ooops.
Follow Martin’s suggestion to check you have not damaged any regulators first. If they are all OK then you may have got the polarity wrong on a board connection which, as Mike says, is likely to blow a chip. See if you can see any sign of thermal damage to parts on the main board. If so let me know which ones, as this will help diagnosis.
If there is nothing obvious I will check the deck out for you if you send it to me complete with all the wiring you have added but minus the arm, as this will not be required for the check.
Regards
Paul