d2k Posted February 8, 2003 Author Report Share Posted February 8, 2003 Thereafter measure the voltages on the 74HC595 chips: Pin #10 and #16 of IC2 and IC3: >4V Pin #2 of IC2: >4V Between 10 and 16 i'm gettin nothing. Between 2 and 16 (i assume 16 is the other pin to measure against) i get >4V...cheers Quote Link to comment Share on other sites More sharing options...
TK. Posted February 8, 2003 Report Share Posted February 8, 2003 Please measure the voltages between ground and the given pinsBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
d2k Posted February 8, 2003 Author Report Share Posted February 8, 2003 okay...Pin #10 and #16 of IC2 and IC3: >4V Pin #2 of IC2: >4V IC2/3 - Pin #10: 0.936VIC2/3 - Pin #16: 0.936VIC2 - Pin #2: 0.008VBest... Quote Link to comment Share on other sites More sharing options...
TK. Posted February 8, 2003 Report Share Posted February 8, 2003 So it's clear now: there must be a weak connection between the +5V input of the SID module and IC2 (possibly the other ICs also). Start measuring the voltage between J2:Vs (ground) and J2:Vc (+5V input). Thereafter follow the two power supply tracks with your probes in order to find the broken contact or connection. This should help! :)Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
d2k Posted February 8, 2003 Author Report Share Posted February 8, 2003 okay, i'm now gettin the 5v on these pins....still no choard from the test tho :/hmmmm Quote Link to comment Share on other sites More sharing options...
d2k Posted February 9, 2003 Author Report Share Posted February 9, 2003 ;D ;Dwe are rollin!I re-tinned, re-soldered the connection from core 2 sid and presto... :DThanks for time and patience T...;0 I'll get some pics to ya soon. I wonder if it worth trying the LCD again if, as you say, the driver for may have become stuck...I don't even wanna touch now tho as it is ;pDan Quote Link to comment Share on other sites More sharing options...
TK. Posted February 9, 2003 Report Share Posted February 9, 2003 finally!!! :DI hope that it will work again after the next power-on ;-)The LCD issue was just a possible problem, normaly it works w/o problems (my SIDs are running since some months w/o any damage, although one of them is stuffed with a LCD)Don\t forget to provide some new patches!Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
d2k Posted February 9, 2003 Author Report Share Posted February 9, 2003 def, patches will be shared amongst all ;)so with the LCD - can i connect just a few pins to test it's okay? Before, as I said I had the backlight but no text or ne other form of info...i did get a bit heavy handed with the soldering iron on it ::), and think i fried a connection to the track on pin 15 of the LCD, but as this is +, and the backlight lits up I guess it's okay. right? so mebbe its worth using still?who knows?, who cares! I have a workin SID damnit !!:)))at least it one less thing to dremel out on the front panel :PFeeeeeeeel the SID...!!Dan Quote Link to comment Share on other sites More sharing options...
TK. Posted February 10, 2003 Report Share Posted February 10, 2003 Yes, the LCD should work when you only connect the first 14 pins (ground ... D7). Don't forget to adjust the contrast pot!Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
d2k Posted February 10, 2003 Author Report Share Posted February 10, 2003 Decided to leave the LCD neways, was a bit of a squeeze in the lil enclosure I'm using and besides, the ltc makes up for it ;)Here are some early pic's of it...I'll be adding some artwork later today (using decal paper)....Apologies for the moody pic quality - only using a cheapo digicam....LoverlyDan Quote Link to comment Share on other sites More sharing options...
d2k Posted February 10, 2003 Author Report Share Posted February 10, 2003 and 1 of the back panel...;) Quote Link to comment Share on other sites More sharing options...
Ian_Hurlock Posted February 11, 2003 Report Share Posted February 11, 2003 DanYou made a nice job of that. Nice and tidy.I Like the leds.Glad you got it sorted..........inspired me to get to the bottom of my SID stuff.Plugged the SID into a new core and it worked. Then spent some time going over every connection looking for shorts. I found one.PIC pin 9 + 10 were shorted. This happened after inserting the plug for the LCD. The distance between the pin header and the next copper strip is so small that when I plugged the lcd in I think the pin moved and contacted the strip...#$#%#^#&* :o :oNow I have 2 cores that work ;DI think I fried my LCD for sure :'( :'( :'(Thanks for your help TKIan Quote Link to comment Share on other sites More sharing options...
d2k Posted February 11, 2003 Author Report Share Posted February 11, 2003 Hi Ian...Good news about ur sid ;) gives me hope that the other core n sid i dun could breathe some sounds still - prolly just a dodgy connection as before...Dont give up hope on the lcd, i hard soldered mine this time (tinning the wires first) to the pins of the header and low n behold it worked ;)...Here's a few more pics of me SID with some top panel artwork added:http://www.notapplicable.co.uk/mbhp/MBSID_6581-4.jpghttp://www.notapplicable.co.uk/mbhp/MBSID_6581-5.jpgWill do a 8580 version too...;)PeaceDan Quote Link to comment Share on other sites More sharing options...
TK. Posted February 11, 2003 Report Share Posted February 11, 2003 Fine Ian - it seems that bad solderings are mostly the reason for the fails, so I can only suggest to check the connections again, again, next day again and again ;-)You made a cool panel foil, Dan! Hopefully I will find a similar foil in germany for my control surface... :)I will add the pictures to the gallery soon!Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Ian_Hurlock Posted February 11, 2003 Report Share Posted February 11, 2003 Very nice panelIs that a reversed out image on transparency glued on ?Ian Quote Link to comment Share on other sites More sharing options...
d2k Posted February 11, 2003 Author Report Share Posted February 11, 2003 well, i was aiming to follow the guide as done on S.Thomas' site using decal paper. The type i got however wasnt the same one as when i popped it in the oven it didnt exactly go to plan :P, and there was no mention of using an oven or placing toner side down on the instructions...so i took a slighty diff route and printed on the decal paper mirrored, placing it toner side down on the panel, letting it dry out for a few hrs, then... (ahem) spraying the panal with a good few coats of flux spray... ::) tho, i wudda used spray vanish/laminate is it was about...neways, the final finish was pretty nice, was thinking of giving the top a light goin over with some fine steel wool to give it a more matt finish...but dont wanna rock this sid boat nemore atm...;)best... Quote Link to comment Share on other sites More sharing options...
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