d2k

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 :P Feeeeeeeel the SID...!! Dan

;D ;D we are rollin! I re-tinned, re-soldered the connection from core 2 sid and presto... :D Thanks 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 ;p Dan

okay, i'm now gettin the 5v on these pins.... still no choard from the test tho :/ hmmmm

okay... IC2/3 - Pin #10: 0.936V IC2/3 - Pin #16: 0.936V IC2 - Pin #2: 0.008V Best...

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

i meant runnin the SID test f/w...;)

This is on the core runnin the SID test module... yep yep yep yep yep nope, gettin 0V... Does this narrow it down? Thanks T Dan

tried 1k and 10k resistor, still nothing... unless u meant this is a check for the LCD and not the SID (i dont have the lcd connected on this core... So, test pin 5 against what other pin, ne pin goin to ground right? ie pin 14...? I tried, no +5 there either - 0.934 is what it seems to reach...

Not with tape, but it's def not touching any other tracks... I'm goin from the dc jack to a switch, then to a fuse (1.0A), then to a LED/1k resitor (power LED) as described in the MB64 walkthrough...before feediing both the SID and Core modules...voltages all good on both circuits... Yeah, ok i'll do that - but it seems like the same prob Ian was having - I tried using the same pic/sid from the first ones in the new modules, and it worked first time (sid test f/w), then nothing - like in the 1st box, so it seems somthing on the circuit is blowing - mebbe the transistor like u said Ian... Nope, these where on brand new brds i etched n stuffed... 1mhz osc... Thats the thing, voltages are good now...so it seems we have a same or similar prob...then again, this is electronics - what do i know :P :-X :-/ :'( :-* oh well, onwards n upwards... Thanks guys... Dan

right, stuffed 2 new sid and core modules with new components, checked voltages - all good, burnt sid test f/w and powered up - choard sound played, great ;). But then after powering down and turning back on - silent once again :( what is happening here? I'm using a 15v wallplug for both modules

??? Okay, voltages are all good again... Still getting a blank screen when i power up (think thats because i may of killed the LCD even tho the backlight lights up). Tried testing with the SID test f/w, and didnt get the choard sound like before... Checked for track breaks and shorts - all looked okay, even tried swapping the SID, also burnt a new PIC - still no worky tho :(... Any ideas pls....? I'm gonna make some new modules, but i'm feelin pretty gutted round about now ... :-/

After testing the sid module for voltages, theres probs there too :| IC1 is fine, IC2 and 3 are also not gettin the +5... Damn, i guess summin was bound to go wrong :( having it work first time was too good to be true..;) elp

:-[ uh-oh... So, eveything was runnin smooth, but then after i housed it it in it's new home and turned it out I got nothing but a blank screen...:( I dismantled it all again, and checked voltages - on the core i'm not gettin the +5 between IC1(1)-(12) nemore, but all other voltage test are okay... Does anyone know what has happened here...? ta Dan

bingo ;) connected pin A on the LCD to pin 15 (+5), and there she lit! should K be left open or conneced to 16? nanice... D

yeah, lcd2core connection looks okay (displaytech 162). a & k pins have some current going through them...so i guess summin else is a miss... i am measuring 5v on pins 15/16 ( led + & -) of the lcd, so it should work right? mebbe it's just gone? i dunno, i did mess about with the lcd prior to putting it into this box... o well, i whiped in an ltc module with sum ultrbright blue leds that make up for it neway ;), still a mystery tho ??? cheers fellaz... D

;D ;D ;D ;D ;D ;D ;D ;D ;D ;D sorry, i had to smile again - this thing is a beast!!! ;) Thorsten! what have u created....???!!! U got me hooked, line and sinker with this for while now - mucho rpsx for it all... Dan

;D ;D ;D Burnt the test firmware...and BINGO - T's loverly choard played upon me!! ;) LCD read 'Last Received' afterwards - is that normal? Nows all i need to sort out is the LCD backlight...

So after 100+ posts I finally have my 1st mbhp box made - a lil MBSID before i start on the bigger pies (2xMB64 and a LC)... Voltages all good throughout, and LCD (backlight aint workin tho - do i need to connect the A and K pins on it to nefin?) reads correct - boots with SID v1.4 then goes to: P: 1 C: 1 D:1 Internal Patch However, i cant yet hear the beast in action :( as i dunno how to connect the audio out to a 3 -pole jack socket i have, i've tried various ways but have had no luck... am i right in thiniking 2 of the poles have to be bridged? which ones? Also, can i just connect up the MIDI in/out from the core and tinker about straight away - i.e i dont have to load any sysex files etc...? What do i do? I must hear this thing sooon ;D Peace... Dan

heh, power drill on a pcb eh ;) - sounds dangerous! I'm using a dremel for pcb work... Depending on where ur located, you can get small drillbits from most electronic stores, or ebay for instance - just type 'carbide drill bit(s)' or summin - i've seen loads about on there... Or, for the cheaper option get a jewllerers drill, or alchemedies (spelling?) drill - u can pick on of these up for a few quid... Drill sizes, 0.8mm upwards should be fine... cpl o links: http://www.megauk.com/cgi-bin/mega/lp.pl?page=http://www.megauk.com/carbide_drill_bits.php http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=DRB-9&type=store HTH... Dan

make sure u get the carbide type - u can get resharpened ones for pretty cheap. Also a drillpress will help ALOT... best... Dan

great... ;D another project to do... :D Cheers... Dan

they are there, cept 2 of em are stuffed horizonitally by the looks of it...

Hi... Just an idea... Would it be possible to make a midimon unit (lcd in a pc drive bay front panel) and use power from the pc psu? I could feed +5v direct to it then... best... Dan

...expensive!! ;D very nice tho I believe...

Hey smitch... I think 1 would be a trimpot, 2 a SIL header and 3 the voltage regulator... best... Dan