bugfight
-
Posts
812 -
Joined
-
Last visited
Content Type
Profiles
Forums
Blogs
Gallery
Posts posted by bugfight
-
-
-
like the title says.
yes that's the fabled mb-6582 base pcb for those who don't really believe it exists.
and yes those are 0.001% tolerance cut resister leads,
which i'll sell on ebay someday when their value has doubled enough times...
-
woohoo!
track is nicey, too.
me likey
-
do you still have v1 patches on your bankstick?
-
i got a fever, and the only prescription is more chat...
-
measured between regulator input and "gnd" at reg input.
should be over 10vdc there.
measure vac too, which should be very small
-
it's 9vac between pins 6 and 7
-
you mean "advanced sid substitute," right?
-
...
Maybe we can instead add a link to the new "official" IRC-channel somewhere? That should be fine, shouldn't it? ;)
...
ugh, no
-
hey this is good stuff, almost missed it somehow...
reminds me of mommyheads.
interesting use of the sid for sure!
-
W
movlw 0x00 ; <-input call MIOS_HLP_GetBitANDMask ;W register now contains b'11111110'
-
...but would immediately go for round ones...
yes, yes!
-
-
...just the env bug" ...
mmmmm bug envy
The thing is, there are no capacitors at all to speak off.
you did stuff the caps for the voltage regulators, right?
use that scope on your psu input, the input to each regulator, and the output of each regulator...
-
should i bridge pin 4 and 5 according to the pinout youv'e provided here?
yes.
bridge them on the pcb that is, not on the psu plug...
...(dissregarding the numbers in the pinout you've provided),
don't do that, these are the proper pin nombers.
Am i making any sense? :-\
no. *whack*
-
din pin numbers are weird. i think so that pin numbers stay the same between the variants.
these do happen to be pin 4 and 5...
shamelessly stolen from : http://personalpages.tds.net/~rcarlsen/cbm/pinouts.txt,
which i found lo those many m00ns ago, when discussing this with wilba.
(facing the right side == looking into business end of the jack)
The power connector pinout for the C64 is shown facing the right side
of the computer:
9VAC -----7 6----- 9VAC
ground -----3 1----- ground
+5VDC -----5 4----- +5VDC or no connection
2----- ground
Note: although only four pins are actually used, the power connector
is a 7 pin DIN, as shown.
-
unconfuser B is correct.
however best to connect both those pins to 5v
-
iirc, changing the device ID will change the default midi channel.
check out the change device id app...
-
if you are working with a schematic, it's important to make changes to the nets there rather than on the pcb. you must have edited the pcb with the sch closed or vis versa. if so, make a backup of the files, open the pcb, close the schematic (it will automatically load) and try deleting the suspect part on the pcb with the sch closed...
-
...
I assume that you are using the MBSID V2 firmware, for V1 it's different.
...
...
Also, i am running mios v1.9f and using the software from the release "midibox_sid_v1_7303c"
...
for v1 use (from midibox_sid_sysex_implementation.txt - included in midibox_sid_v1_7303c.zip)
g) F0 00 00 7E 46 <device-number> 0D 02 00 <channel> F7
Change the MIDI channel
-
i only read these for the contexts...
-
tricore
-
... Maybe adding some connector and few jumpers
will allow to use stabilized PSU like C64 or similar. ...
you can easily use a regulated 5v supply with no additional jumpers.
just leave off the regulator (IC3), C5, and BR1 and connect the supply to the gnd and output pads for the reg.
-
...
Tascam MMU-16 + MM RC MMR-8 MMP-16 USA $99
...
yoink!
thanks dr
very strange voltagebug with mb-6582
in MIDIbox SID
Posted
i would measure current draw on both 9v and 5v regs.
also i read somewhere that cascading the regs in this way can cause oscillations,
maybe the bypass caps are enough to prevent this, but given your experiences here, maybe not.
it may also be more of a problem when the 5v reg supplies more current than the 9v...