haven't drowned yet, but i've got my snorkel ready just in case. Not to mention all the tornado sirens.
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Please post all monitor technical topics in the Technical - Videogames - Monitors section, not in the General Help section.
Please help bring Galaga to life.
- Thread starter mitchschaft
- Start date
Thanks guys,
Just wanted to give you an update... As soon as the last batch of resistor packs arrives this week I'll have 20 kits ready to sell. This last part has been a bit of an issue to find.
RJ
Thanks for the update. Would love to buy at least 5 kits..
Good Namco custom chip cross-reference
A little late, but maybe it will help someone:
http://www.multigame.com/NAMCO.html
If you need a particular custom, this list can point you to potential donors.
A little late, but maybe it will help someone:
http://www.multigame.com/NAMCO.html
If you need a particular custom, this list can point you to potential donors.
I just listed 19 kits.
Oh, and thanks for the Namco list. I have a LOT of custom ICs to go through and test/list.
Oh, and thanks for the Namco list. I have a LOT of custom ICs to go through and test/list.
OP
OP
Well, you have 18 left!
Thanks!
Just be careful desoldering the old parts! Galaga boards are like Pac Man in that they are VERY easy to lift traces and yank plated thru holes out of the board if you don't take great care in desoldering them.
Just be careful desoldering the old parts! Galaga boards are like Pac Man in that they are VERY easy to lift traces and yank plated thru holes out of the board if you don't take great care in desoldering them.
kb0jjn
New member
I finished pulling parts off of my video board yesterday. It was not as hard as I though it would be. The resistor packs were more difficult than the sockets. The tip that helped the most was to pull the plastic up from the socket then pull off pins. It took me about half a day and about 10 feet of chem wick. Next the cpu board...In about a day or so.
Glad you got that far OK! It's not for the faint of heart to install the kit. These Galaga boards are VERY easy to pull traces on if you aren't very careful.
kb0jjn
New member
I have pulled traces before and have been really careful. I am older now and have more practice and patience. I relly want to get some more tools before I start on the cpu board.
Things like a chip puller, Solder sucker, and eprom programmer.
Things like a chip puller, Solder sucker, and eprom programmer.
Just say NO to chip pullers!
Remember those free screwdrivers that stores used to give away? The kind that clipped onto your pocket protector like a pen and had a flat head on the long end and a phillips on the short end?
Take one of those, put it in a vise, and bend it over at about a 70 to 90 degree angle. Use that to pop the chip up and out of the socket a bit at a time on each end.
Works MUCH better than those chip pullers and you have much less of an issue with bending pins.
kb0jjn
New member
I have just bought a galaga renue kit from www.arcadecomponents.com
it has all the sockets and resistor packs you need to make the board more reliable. I am starting on a dead board so this was the way I decided to go. I did buy several of the resistor packs from digi key and did buy the 1k and 2.2k resistors to do the same thing.
Raymond also has a pdf file for the renue kit. He is very helpful and does post quite a bit
on this site. For $18 you just can't beat it.
bill
it has all the sockets and resistor packs you need to make the board more reliable. I am starting on a dead board so this was the way I decided to go. I did buy several of the resistor packs from digi key and did buy the 1k and 2.2k resistors to do the same thing.
Raymond also has a pdf file for the renue kit. He is very helpful and does post quite a bit
on this site. For $18 you just can't beat it.
bill
kb0jjn
New member
That sounds better than the idea I had. Something like a pair of tin snips and a tin can. I am a bit concerned about the z80 cpu chips and the 28 pin chips. I lifted one (0829) at 2e and 6 pins stayed in the socket and two others fell off the chip. Same thing happend to the 54xx chip.
kb0jjn
New member
Resistor Packs
Any better ideas on removing the resistor packs. I have been bending back and fourth until they finally broke. I then used tweezers on parts side and put soldering iron on solder side while pulling. In the past, I would sometimes pull a trace doing this.
bill
Any better ideas on removing the resistor packs. I have been bending back and fourth until they finally broke. I then used tweezers on parts side and put soldering iron on solder side while pulling. In the past, I would sometimes pull a trace doing this.
bill
Yeah, those pins are fragile.
If the thick part of the leg is still there, scrape it clean and shiny with a hobby knife then solder a leg of an old scrap EPROM or ROM chip to it.
If the leg is broken at the body of the chip then use a dremel tool with a small grinding stone to carve down the black epoxy body of the chip to get to the metal lead. Tin it then solder a donor leg to that.
Use a small pair of dikes and cut up the resistor pack. Just be careful as the ceramic bodies like to fly apart with eye gouging speed/accuracy when you do this. Once done desolder the individual pins.
Of course, the best way is to have a good desoldering station.
RJ
If the thick part of the leg is still there, scrape it clean and shiny with a hobby knife then solder a leg of an old scrap EPROM or ROM chip to it.
If the leg is broken at the body of the chip then use a dremel tool with a small grinding stone to carve down the black epoxy body of the chip to get to the metal lead. Tin it then solder a donor leg to that.
Use a small pair of dikes and cut up the resistor pack. Just be careful as the ceramic bodies like to fly apart with eye gouging speed/accuracy when you do this. Once done desolder the individual pins.
Of course, the best way is to have a good desoldering station.
RJ
Thanks for the pr0pz. I had a few folks here waiting on me to build more kits and sold 5 the first night.
w00t! Post 5555!
kb0jjn
New member
I think if I get a set of these boards sold I will buy a good used one. I love my weller soldering station I found in the trash one day. It only need a tip. It is a good one with the temp. adjustment.
kb0jjn
New member
I just oreder another Galaga renue kit.
kb0jjn
New member
It is 2 pm and I just got my Galaga renue kit installed in my vid. board and now I am off to the soldering iron.
