CEI Hot Slot, problem with error

[juani]

Hi!

I have a CEI Hot Slot 87' or 88'. I have an error: E41r. I don't know what is........    before this error, the CEI have other, rc=rrr. When I see the pictures that have newlifegames.net of the main board I check that my dip switch have wrong, sow I corrected. And now the error is E41r....

The CEI dont have lights in buttons and the coin comparator don't have voltage.

Can anybody help me??

Thanks!!

[jbshocks]

do the reels spin at all?  Ever stop spinning.  That error indicates that a reel stopped while spinning but can be miss leading if the optic sensor is adjusted wrong. is it actually e41r--  ?  if so that indicates the trouble is reel one.  Give a little more info and I will try to help. 

[juani]

the reels not spin, not move... The main pcb have 2 capacitors that blow off, can you tell me what are? please, see the atached.

[juani]

More photos!

[juani]

and more...

[juani]

the last one!!

[jbshocks]

What is your skill level with boards?  I suspect you have a bad bridge rectifier  and possibly bad voltage regulator.  You will also want to change that big capacitor.  I will check later and see if I can read the value of your 2 popped caps. 

[juani]

I'm not an expert, but I will try to fix it. ok! thanks for your help!!

[jbshocks]

I looked at the pictures again and my memory is coming back from fixing mine.  The reel motors, lights and coin somp all run off 24volts.  Looking at your pictures you definitely have trouble in the 24v circuit.  BR2 is a bridge rectifier and converts ac to dc.  yours may be bad,  Test it with a DVOM in diode mode.  it will likely have 30v dirity dc coming out and goes to the large filter cap c85 which has clearly been replaced they used the wrong style cap which I would not have a problem with if they had insulated the leads properly.  The factory for some reason used a 4700uF 25v cap in that location, what is yours?  Use a 35v since the circuit carries 30 volts.  The circuit then makes its way up to the LM350t which converts the clean 30v dc to 24v dc. I would replace lm350t.  c89 is a little blue capacitor like every other blue one on the board.  I believe it says .1M. Test r57 and r58.  Since you need to order some pieces I would also get c73 and c76,  c76 is likely damaged.  C73 is actually a different circuit.  If you have some clip on test leads check your work and make sure you are getting 24v when you are done.  C53 is the same little blue cap and is just a filter cap for the sound chip.  I would worry about the 24v circuit first.  I find it odd that it blew on a separate circuit.  And since the game boots it seems you must have 5v now.  Is that smoke at c28 by u21?  This is similiar to what was wrong with mine.  The BR2 partially failed and I was getting 18v and way to much ac ripple.

[jbshocks]

some posts from getting my machine running
http://newlifegames.net/nlg/index.php?topic=14565.0

and here is a post dealing specifically with that VR

http://newlifegames.net/nlg/index.php?topic=14944.0

Can you post a picture of your machine?

[juani]

I check that the large CAP is 63V 2200uf. I already change all the regulators, both BR and caps 76, 89 and 53. But I don´t read that you tell me about the Large CAP, sow tomorrow I will change it. I understanding that the capacitor was wrong after testing, and error is the same E41r. In the first test, because I test it twice... Have another error E61...

[jbshocks]

the large cap being rated at 63v is fine. but it should be 4700 uf.  The trouble with the cap install is that the leads could be shorting.  The are not insulated.  Have you tested voltage on VR5?  output should be close to 24v.  E61 is a program error code and can take you down a wrong path don't worry about it until you get 24v and eliminate other codes. 

[juani]

I test VR5 and have 34V...

[jbshocks]

so that is a problem.  VR5 is a variable voltage regulator and and it is tuned by a signal.  Are you sure you are measuring the output or possibly the input?  I believe the center pin is v out and leg closer to center of the board is v in.  What values do you have on R57 and R58?  they are part of the control circuit.  Please post your voltages from all 3 legs of VR5.

Poppo if you are out there can you answer would an open in the control circuit cause the VR to output the same as its input?

[juani]

 and BR2 gives 35v....

[juani]

the leg center have 35v and the leg clocer to the big cap have 35, the leg clocer to the center panel have 0

[jbshocks]

measure each of the 3 legs to ground not to each other.

[jbshocks]

you can get ground from center leg of vr4 or the neg end of c85.

[juani]

36 V in the leg clocer to center ot he board and 1,2 V in the center leg.  Can be possible that the big cap, that is not the correct, burn the new regulator (VR5)??

[jbshocks]

if the cap is not filter AC ripple  sure it would kill it.  I am actually happier about 1.2v on that circuit rather than 36v.  Or you could have had other bad parts.  get proper cap.I guess in your case 36v or high (I am using a 35v)  4700uf and swap it and the VR.  Check the 2 resistors please and post values.

[juani]

I already change the big cap and the regulator vr5 again. The big cap is a 35v 4400 uf. The eeror is the 41r. The v out of vr5 is 7v. And 36v in.
The motors of the weels tried to do home, but the v of the motors is 1.5 v....

[jbshocks]

I suspect it is c77.  C77 was bad on mine and caused low voltage.  trouble is I could not read the cap on mine to determine value.  I think it says 106k.  See what yours says.  check the 2 resistors in that area as well.   I removed c77 from another board and got my voltage back to normal

[juani]

Thank for the reply, I change the C77 yesterday, and vr5 vout now is 23.8 V, but I don't have another cap, sow I change c57 for C77. The reels works, but when stop the error is E483 D2... I suspect that the c77 thtat I change for C57 is broken. Tomorrow I will change it.
Do you know anithing about this error?

[jbshocks]

If you now have 23.8v you are onto something.  Disregard my statement on the value of c77 I had looked at c75.  I can not read those orange ones at all.  Can you.  C57 appears related to sound.  So if you have 23.8v you may well be able to get it running now.  Do all reels spin now?  Do they coast to a stop or does it attempt to stop the reels?  E483 indicates that the reel positions are swapped.  D2 does not make sense.   Can you take a picture of the error?  Also try swapping the reel positions between 2 reels and see if the error changes. 

[jbshocks]

I was able to read one of the caps.  It says +10 and on the next line 35.  Maybe someone else can help with what that means.