zx rev.2 question

thedeal7235 · Post by **thedeal7235** » Tue Nov 18, 2008 7:04 pm

anybody out there know which resistor is the one to replace? pg just sent me the fans, but I had no clue I also have to replace the resistor; instructions say "locate R40 on the power supply control board, it is a 91 ohm 2 watt resistor. replace it with A 51ohm 1 watt resistor. Be careful not to spill any solder droppings in the unit."

rolandk · Post by **rolandk** » Wed Nov 19, 2008 8:26 am

Its right by where the fan wires connect to the vertical PCB.

thedeal7235 · Post by **thedeal7235** » Wed Nov 19, 2008 8:28 am

there does appear to be resistor, of similar size, right under where the fan "connector" goes into the daughter board????

rolandk · Post by **rolandk** » Wed Nov 19, 2008 9:06 am

thedeal7235 · Post by **thedeal7235** » Wed Nov 19, 2008 11:27 am

thanks roland-and tell Jim i said thanx again-i also asked him about the clear plexi windows that go inside the zx-i do have 2 ti xovers i dont use b/c i use active(mx3i crossover), and they do look like they may fit, but there are no screws on the zx , so would hotglue be suffeciant enuff to glue them in, or what do u guys rec.? thanks Christian(yeah thats where i thought the new resistor went, just wanted to be sure-

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thedeal7235 · Post by **thedeal7235** » Wed Nov 19, 2008 11:52 am

last 2 questions, 1 it appears that daughter board slides up and out of the socket?(kinda like a pc board) lastly does it matter whcih direction the resistor is soldered back in, is one side posi, the other negative? sorry, but thank you-Christian

thedeal7235 · Post by **thedeal7235** » Wed Nov 19, 2008 12:24 pm

ok i think i have the answer to the "which direction " the resistor should be placed in, i pulled out my dmm, and measured the old one in resistance, the top(solder-lead on board as u face it looking down is where i placed the posi probe, and the bottom the negi probe, it measured out @ 92-100ohm( knowing this old resistor is 90 ohm 2watt-then i measured out new resistor,50 ohm 1 watt, so now i know which direction to replace it back on the board-the posi, i believe will go to the top lead, and other end to bottom lead/b/c the resistance measured that way is close to its' resistance-CORRECT?

Jim Truett · Post by **Jim Truett** » Wed Nov 19, 2008 12:56 pm

Resistors are not polarized, and the daughter board is soldered in. You can put the resistor in either way.

rolandk · Post by **rolandk** » Wed Nov 19, 2008 12:59 pm

+1 to Jim

And for the windows we used cyanoacrylate 'super glue' type stuff. Scrape away any powder coat so its plex to metal contact.

thedeal7235 · Post by **thedeal7235** » Wed Nov 19, 2008 1:37 pm

thanx guys-yeah board looked like would snap out-and ofcourse i began to stick a small eyelass screwdriver down near its leads, and a little sparky,very briefly, so all is measuring out well, though, so hope its gonna fire up-ill check it 2morrow-thanx again-