<![CDATA[ChipMusic.org - Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/topic/13067/flash-cart-drawing-too-much-current-on-pocket/ Mon, 30 Dec 2013 18:24:23 +0000 PunBB <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196492/#p196492 arfink says:

Heh, that's a cool way of getting around the problem. I've done lots of experiments with the Pocket, but in none of them did I attempt to just limit the current going to the backlight. Instead, I usually focused on trying to increase the current the Pocket could provide. The limiting factor in these things seems to be that normal alkaline AAA batteries just can't provide much current before the voltage "droops." My solution was a small lithium polymer battery mod.

]]> Mon, 30 Dec 2013 18:24:23 +0000 https://chipmusic.org/forums/post/196492/#p196492 <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196418/#p196418 thursdaycustoms says:

Very nice! Unfortunately it's an experiment every time. But at least it always works! Your batteries should last much longer now too.

]]> Sun, 29 Dec 2013 17:04:38 +0000 https://chipmusic.org/forums/post/196418/#p196418 <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196401/#p196401 DipSwitch says:

Ah, thank you guys!  I ran a quick search, but I guess i wasn't looking for the right things...  Thanks again!

EDIT: Yep, just tossed one in, and it worked like a charm!  I used a variable resistor so i could 'calibrate'.. Seemed like 113Ω was the magic number..

]]> Sun, 29 Dec 2013 04:50:17 +0000 https://chipmusic.org/forums/post/196401/#p196401 <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196398/#p196398 thursdaycustoms says:
thursdaycustoms wrote:

The issue is that your backlight is draining too much power. You need to add a resistor to the backlight to bring the brightness down and therefor draw less power. I have to do this with every Pocket that I backlight. I would recommend somewhere between 100ohms and 220ohms depending on the color of your backlight.
But as an experiment you can try desoldering the backlight altogether and try running LSDJ again. This will tell you without a doubt if your backlight is drawing too much power. I would recommend starting at 150ohms and then seeing which way you need to go from there.

]]> Sun, 29 Dec 2013 03:45:14 +0000 https://chipmusic.org/forums/post/196398/#p196398 <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196394/#p196394 katsumbhong says:

You have to let us know which flash cart you are using.

]]> Sun, 29 Dec 2013 01:51:34 +0000 https://chipmusic.org/forums/post/196394/#p196394 <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196390/#p196390 rygD says:

I seem to remember this exact topic being discussed and a fix explained in the last few weeks.  i think it is lsdj going into power save mode or something.  No time to look right now, but you can do a search.

]]> Sun, 29 Dec 2013 01:27:08 +0000 https://chipmusic.org/forums/post/196390/#p196390 <![CDATA[Re: Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196389/#p196389 DipSwitch says:

Probably worth mentioning the Game Boy has a ASM 4x backlight, as well as Pitchmod installed...

]]> Sun, 29 Dec 2013 01:23:38 +0000 https://chipmusic.org/forums/post/196389/#p196389 <![CDATA[Flash cart drawing too much current on Pocket?]]> https://chipmusic.org/forums/post/196388/#p196388 DipSwitch says:

Hey guys,

I was playing around with a pocket a had worked on a while ago, and ran into this weird issue..  It seem like when I attempt to play anything in LSDJ the backlight goes dim?  (Check the gif below for a better idea of whats happening)

I tried the cart (which has always been buggy) on a DMG and couldn't replicate the problem..

Anyone else run into this? or anything similar?

]]> Sun, 29 Dec 2013 01:19:10 +0000 https://chipmusic.org/forums/post/196388/#p196388