Topic: Make Only Half Of Tsop Flashable... (Read 78 times)

Noilegnave Siseneg Noen · « **on:** July 29, 2003, 11:42:00 AM »

I really don't have a need to have both halves of the TSOP to be flashable. Is it possible to, say, just solder one set of the flash-enabling jumpers instead of both to make only half of the TSOP flashable? Or are both required to allow write access?

Also, my soldering skills are admittedly substandard. I can attach a switch to gnd, vcc, A19 without too much difficulty. But for some reason I seem to lack the technique to solder these damn jumpers together with any sort of repeatability. Did it to my box without too much of a problem...but I've been dicking around with a friend's box all last night, and having a hell of a time with those jumpers not connecting. I'm afraid I'm going to pork a hole through his damn board before I get his TSOP flashable. so, it would save me some headache if I could just do one or the other, but not both.

-nsn

p.s. also, if anybody has the ability to capture in words an effective technique to bridging those jumpers, it would be appreciated! I know it would probably be more comprehensive to be shown, but alas this could be difficult on a forum...

psxguy · « **Reply #1 on:** July 29, 2003, 12:36:00 PM »

You need to solder both points to enable write access to the TSOP. I know what u mean about soldering the jumpers bein a pain. Your best bet is to use a short length of wire no more than 2-3 inches, then solder each end to each square, then repeat for the other side. with this method, you can then cut the wire when u want to disable write access.

You can also bridge the TSOP this way...

http://liquefaction.org/matrix/

Noilegnave Siseneg Noen · « **Reply #2 on:** July 29, 2003, 01:29:00 PM »

thanx, very helpful info. Think I'll dig back in and try that 3" wire method, maybe I'll have more success that way.

another question: what will remove the blackish resin stuff that gets left behind when you try to solder some point for a long time? Is this stuff called flux? will isopropanol remove it? I can't even see the points on the top of the mobo anymore cuz there's so much of that crud.

guess I'll find out later...

Exobex · « **Reply #3 on:** July 31, 2003, 09:13:00 AM »

Noilegnave Siseneg Noen · « **Reply #4 on:** July 31, 2003, 02:01:00 PM »

regulater7 · « **Reply #5 on:** July 31, 2003, 05:42:00 PM »

Just clean the TSOP Jumpers with alchohal, VERY WELL, theres a "liquid protection" crap type shit on the board to help protect, once its removed its very easy/

Author Topic: Make Only Half Of Tsop Flashable... (Read 78 times)