reke-500rgb troubleshooting

[bazzly]

I pulled a REKE-500RGB out that I had in storage for a while, plugged it in and fired it up to see the animation show, but all I got was a vertical line. Just one straight line that changes color and blinks here and there.
Anyone have any ideas how I can fix/trouble shoot this? Should I post a picture?
I can adjust the the focal point, but dont get any horizontal.
Any ideas?


Thanks

 

[KRNAZNBOY]

I have no experience with this stuff whatsoever, but from what I know I think your X-plane scanner has died or been disconnected. Can you open the unit and see if all the connections are sound?

Hope this helps!
-Matt

 

[ARG]

Yeah, sounds like one of the galvos is dead or disconnected, or maybe one of the amps is dead. Best to open it up and take a look.

 

[hakzaw1]

Yep- one of you galvos is not working- AFTER you make sure all four 'ends' of the wire that connects your engines to its control;er are plugged in--

swap the wires to see what happens-
your line should go horizontal - if is just the one-

If you have a bad one it may make more sense and cost less and be an easy swap to just buy an 80$ set of 30ks and replace all- IIRC we found that the REKE RGB 500 has scanners that are about 20K-- I would first take off the top- and gently press on all four connections and see if that makes the other galvo run. I am about to work on two LkPDs
and make a tutorial as these are being fixed- feel free to join it as it will be a general tutorial on finding and fixing problems on low cost PJs-
IMO its crazy to ship one back to china almost always- Lots of forum members have old sets of scanners that they prolly will never use. I got two sets that way very cheap-
If you simole reolace your entire scanset you will have less issues that replqaceing one motor- as they will require you to de-tune completely both and start from the begining to tune the pair- thus buying a mounted and tuned MATCHED set makes more sense/
unless you have tuned these before- i have seen two demos of this being done but still would rather not try myself.. It may not be easy to buy just one-

btw I have a 300mW REKE G- and it too makes a single horizontal line- same problem as your but the other engine.Post some pics-- you will get help here--
I have a good working REKE RGB 500 too== I may be selling it.. BTW (going all analog)

 

[bazzly]

Thanks guys... Here is a bad picture of the problem..

So I check all 4 ends and they were all seated good, I then swapped the cables as suggested and I only had a horizontal line.

So hakzaw1, seems like that was very helpful (I learned something now, thanks!)... So seeing how I'm a noob and I'm going to attempt to fix this... What would be my next step? Where would I go to buy parts, and what parts should I buy?

"80$ set of 30ks and replace all" not sure what that is.

Thanks guys!

 

[hakzaw1]

do not buy any parts just yet

I will join you in this thread so my REKE 300G also gets fixed as it appears WE both have the same problem- tonite I will take pics of mine to post here- step #1 is to check all four connections between the galvos and the show card--I use the eraser end of a common pencil with the PJ running and gently press on the connections and watch for a change I also make marks with red and black sharpies so i cannot get confused if i must unplug any wires-- mark both the end of the wire and where it plugs in..

hk

 

[swamidog]

looks like you forgot to water it.

Thanks guys... Here is a bad picture of the problem..

So I check all 4 ends and they were all seated good, I then swapped the cables as suggested and I only had a horizontal line.

So hakzaw1, seems like that was very helpful (I learned something now, thanks!)... So seeing how I'm a noob and I'm going to attempt to fix this... What would be my next step? Where would I go to buy parts, and what parts should I buy?

"80$ set of 30ks and replace all" not sure what that is.

Thanks guys!

 

[bazzly]

I just moved and my sister was taking care of it... she can kill anything... lol

 

[bazzly]

do not buy any parts just yet

I will join you in this thread so my REKE 300G also gets fixed as it appears WE both have the same problem- tonite I will take pics of mine to post here- step #1 is to check all four connections between the galvos and the show card--I use the eraser end of a common pencil with the PJ running and gently press on the connections and watch for a change I also make marks with red and black sharpies so i cannot get confused if i must unplug any wires-- mark both the end of the wire and where it plugs in..

hk

Next time I take mine apart I will do the same.... if you think its needed..? (probably tomorrow)

 

[hakzaw1]

Oh yeah- it will need to be
'apart' in order to fix of course--
you could have just joined this thread:


http://laserpointerforums.com/f51/laser-projector-trouble-shoot-repair-101-a-88021.html


I am thinking that yours can be fixed with a total scan set swap out- 30k CHEAPIES WILL LIKELY BE AN INPROVEMENT but- you will need to buy a scan set for the same side yours exits the PJ- AFAIK the ONLY scanners that are 'flippable' are not yet FS as singles and will cost prolly twice what you paid for your entire REKE-

I have an on-going threrad on these 'ScannerMAX 506 Compact' (LPF search that)newest from Pangolin and an item that has already got LOTS of attention- and will be FS as singles in 3 or 4 months as ATM Pangolin is only filling orders for 100 pcs min..

sending you some invites

also plz refrain form double posting when you can(use 'edit' instead) and i will be very happy to give your rep a +5 bump IF you add your location to your personal profile-that is more important than many newcomers here realize--

Swami is one of the guys I was hoping would join our PJ fix threads-- good guy and very helpful-- knows his chit for sure--

hk

 

[bazzly]

Okay... Added location and joined the group.
Do you want to to start adding pictures to the thread you started?
LASER PROJECTOR trouble shoot/repair 101

I'll try to get clear pictures of the problem I'm having, and see if I can take some of it pulled apart.

Thanks for your help!!

As for the things I may need to order.. I may need links as I dont know what what it as of yet.

 

[hakzaw1]

Sure jump in anytime-
I have been very busy with other things so I am behind in my plan for that thread--

got lots done this weekend (stayed off line) so soon I will post pics too-

I will look around for you on a set of PT 30K -- I have a (used) set I never (personally)used and may cut you a good deal --hak

 

[bazzly]

Fixed it! Your tip of checking connection while it on (with a pencil) Did the trick. THANKS!!!!
The picture is not very good, but it was a loose connection. Cant see it well, but the wire was not sitting correct in the adapter. (I pulled the adapter out to fix it)(Not sure what that board is called)

 

[hakzaw1]

well- last time i used my REKE 91G it was flat lined horizontal so I set it us as a Liquid sky and ran it about 5 inches off the floor--all night (both nites) but while in storage since then the other glavo has also quit- so now i have `100 mW green dot-

that one will have to wait- today I opened a LK PD2 up that is doing nothing- (except the top mirror bumps about 5 degrees on power up and again on power down.
NOTHING else is working---
and we have a second PJ same model but with a weakened green inside and the prob is NOT the green module- (great!)

pics are going up here in a few"

here:
http://laserpointerforums.com/f51/laser-projector-trouble-shoot-repair-101-a-88021.html



Good Newz brzz- glad my tip helped- now you can go to the PJ fix-it thread and help the rest of us out- one thing we can always count on when it comes to low cost PJs is a non-stop number of fixes needed-- its a trade off IMO and we win by both learning and fixing our own kits..

update to thread linked
http://laserpointerforums.com/editpost.php?do=updatepost&postid=1292219

looking like a bad amp- anyone with suggestions is more than welcome to chime in any time--

next fix is not going to be so easy as these two

 

[hakzaw1]

One fixed many to go
we have moved!!
learn to fix a PJ here:

LASER PROJECTOR trouble shoot/repair 101

http://laserpointerforums.com/f51/laser-projector-trouble-shoot-repair-101-a-88021.html


if you know how fix/trouble-shoot--come and chime in- we need HELP!!