Ok im using this diagram My rlimit is a 10ohm resistor Ok i have all my pots and stuff, but which leg is which on the pots in the schematic? Id use all 3 of the legs on the pot correct? whats up with pins 18 through 25? there all connected and grounded? Cant i just cut those off? and heatshrink/tape the ends together? it wouldnt matter which outter leg of the pot i use right? the middle leg on the 100ohm pot connects to one of the outter legs? wtf? edit: ok my lcd uses the points A and C for the back light, which point corresponds to points 15 and 16 on the schematic? Wait does A and C stand for anode and cathode?
well thanx for all the help , got done with it though Started at around 7 pm, didnt get done until 2:30 am LMAO anyways, i also expierienced my first burn EVAR!! didnt hurt to bad, but it stings every now and then and in the shower hehe wowzers And well i doubt my lcd is gonna work, one of the points (its a gold thing around the hole for the wire that connects to a trace) fell off, so i had to connect directly to the trace and i dunno if its connected or not, tried using a mutlimeter, nothing, but i tried it with all the other points and didnt get anything either (im thinking my probe thing is too big) Gonna try tomorow, wish me luck!!
good luck to you- ya know- one way to fix that broken link is to buy one of those pens- they're called circuit writers or something. they contain liquid silver, and you just "draw" the missing traces. works well for me. they cost about 10-15 bucks. if you still want help with the pin assignment, i'll be more than happy to help you out. just let me know.
well i got it figured out from random people off other forums Where can i get that pen? I might go buy me one rather than buy a new lcd, course the lcd would be cheaper If i do get a new lcd, im gonna go get a nice sieko 4x20
i bought my pen from Fry's, and i've seen it online a couple places too (Directron, etc.). i'm glad i bought the pen- i use it all the time. it's well worth it if you think you may ever need it again. it has alot of "ink" in it. let us know how it goes.
ok welll i just tried it on this old IBM Pentium 1, and the lcd is powered, but i dont see a row of blocks, i adjusted the contrast and the back light but theres nothing. Are some blocks suppose to show up as soon as theres power, or when it boots into windows? Because the computer froze up when trying to boot up (didnt freeze but it got an error) hmmm, could it be my point 4 on the lcd?
well, i usually see the line of blocks when windows begins to load (i think)... do you have a blue/white/uv led and two batteries? if so- make a simple continuity meter with those 3 things. (just hook up the led to one end of one of the batteries, then put a wire on the other end of the batteries, and hook another wire to the other end of the led. use the two loose ends as your "test probes". when they touch each other, they should light the led.
hmm, well i was able to load into windows, still nothing though when i adjust the 10k pot for contrast, it doesnt look like anythings changing Ok well you know how the lil gold thing fell off? (that connects to the trace) the back side of the thing is still on, if i soldered the wire to that, does the back side come in contact with the trace? Do you have AIM? plz im me at breakerdawgbob, if im not there just leave a message, i really need help
i don't have any im programs.... sorry. my pc just seems to get all crapped out with... crap after i download and use those im things. i wouldn't recommend soldering the wire directly to the board at all. it may make the connection, but it will almost certainly come undone soon after. and may take the remaining through hole contact with it. i usually just kinda blob on a bit of solder and put a lone pin through the hole... don't use too much solder of course, but just enough to fill the spot where the contact that fell off was. if you have a soldering pencil (the skinny pointy ones), that would work great. when you use your multimeter to test for continuity, i assume you connect one probe to the pin... where do you put the other probe?
i try to put the other probe to the trace, but i get nothing, even with all the other joints Ok well theres contacts on both sides of the pcb, the front one fell off, if i soldered the wire to the back side contact, would it sitll work? it doesnt seem like the contact is touching the trace (trace is on front side)
yes, i believe it would contact the trace... as for the multimeter probe- the traces on the board are covered with a non conductive something-or-another, so that's why it doesn't pass the continuity test. since the other end of that particular trace is most likely under the edge of the glass, (pin 4 of the lcd is for data), then that would be really difficult to test. try soldering a pin to it. _l_l_l_
yup. that's what i would do. be really careful... edit: i meant be careful cos you wouldn't want to lose the contact on that side of the board too. (i'm editing my post instead of just posting again because the "69 dude!" under my name will go away! <----------
lmao, well too bad its gone hehe ill try it and hopefully itll work I feel so stupid, because i wanted to get everything clean and put the wire through the hole of the contact from the front and solder on the back (all my wires are like that) but i put too much solder when tinning that one contact so it got over the hole, and i was so picky that i tried everything to get the solder out of the hole so i could get it through the hole, and then i push the soldering iron too hard (through the hole) and the contact flew off, im pissed at my self edit: ok well i soldered to the back and it still doesnt work, once again it doesnt look like the contrast pot is doing anything. is this the right scematic? ive seen another layout too, but is that correct? because maybe its wired wrong?
don't feel bad- i broke a leg off of an IC i was working with a couple minutes ago.... then i did the same thing with the leg of my last bi-colored led.... oh- and yeah, that schematic is correct.
hmm could my potentiometer be the prob? doesnt look like its doing anything btw is a multitester the same as a volt meter? it can measure dc/ac voltage, dc current, resistance, batteries and decibels
try removing the pot and connecting pin 3 on the lcd to ground (pin 1 on the lcd). pin 3 is for the contrast. tying it to ground will turn it all the way up...
so id be able to see the blocks? k that would be alot easier than wasting time trying to solder onto the new pot where do i connect all the other wires that are hooked up to the pot? or do i just leave the pot, and take the wire that connects the pot to pin 3, off the pot and solder to 1?
