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Main => Monitor/Video Forum => Topic started by: fairway2000 on December 24, 2008, 09:05:07 pm

Title: D9200 in golden Tee Red goes out.(what transistors runs red?)
Post by: fairway2000 on December 24, 2008, 09:05:07 pm

Merry Christmas All

I have a D9200 in a 05 Golden Tee. I lost the red a year ago. I changed neck board and it worked. Now it did it again.
Any thing I should know. I don't like $60.00 fuses.

Thanks

Title: Re: D9200 in golden Tee Red goes out
Post by: Ken Layton on December 24, 2008, 10:23:56 pm

This service bulletin explains what has happened and how to repair it:

http://www.wellsgardner.com/pdf/Service/SERVICE%20BULLETIN%2030A%20NECK.pdf

Title: Re: D9200 in golden Tee Red goes out
Post by: fairway2000 on December 24, 2008, 10:31:03 pm

Thanks

I have the new board.

Title: Re: D9200 in golden Tee Red goes out
Post by: Ken Layton on December 24, 2008, 11:16:23 pm

Resolder or replace the red driver transistor on the neckboard.

Title: Re: D9200 in golden Tee Red goes out
Post by: fairway2000 on December 25, 2008, 10:21:18 am

Thanks Ken

The Red came back. Could that still be the problem?

Title: Re: D9200 in golden Tee Red goes out
Post by: Ken Layton on December 25, 2008, 12:14:56 pm

I had the same exact "RED disappears" problem on a Golden Tee on location and it had the new neckboard too. I resoldered the transistor, but the problem became intermittent.....sometimes working, sometimes not. Ended up swapping that transistor with one of the other colors and the problem moved to the other color. So I went out and bought a brand new NTE replacement transistor and that fixed it. Remember these transistors are driven very hard to the limit of their specifications (part of Wells-Gardner's poor design) and fail often from heat. Use silicone heat sink grease on these transistors.

Title: Re: D9200 in golden Tee Red goes out
Post by: fairway2000 on December 27, 2008, 05:23:22 pm

Thanks

Is that Q 201? I have an old style neck board can I take it off that? Or is that the one thing they changed.

Thanks Again

Title: Re: D9200 in golden Tee Red goes out
Post by: Ken Layton on December 27, 2008, 05:29:57 pm

I don't have a manual or schematic. I don't think the newer neckboard used different transistors than the old one. I think only the layout and the method of mounting the transistor changed.

Title: Re: D9200 in golden Tee Red goes out.(what transistors runs red?)
Post by: fairway2000 on December 29, 2008, 05:34:28 pm

Ok I have two manuals one said Q202 and the other said 211? Help

Thanks

Title: Re: D9200 in golden Tee Red goes out.(what transistors runs red?)
Post by: grantspain on December 29, 2008, 05:43:07 pm

q201 and q203 according to the schem

Title: Re: D9200 in golden Tee Red goes out.(what transistors runs red?)
Post by: fairway2000 on December 29, 2008, 07:53:08 pm

 Ok I changed Q201 and it works. Now I have done this 3 times on this game. Can you drive the red too hard? I have 4 games in my house with a D9200 and this one is the only one that does it.

Thanks for the help

Title: Re: D9200 in golden Tee Red goes out.(what transistors runs red?)
Post by: qrz on December 29, 2008, 08:33:59 pm

i assume u replaced it with a new xistor  AND applied heatsink compound.

and from Ken's prev post:

there has been a modification/production change made to the circuitry/pcb.
http://www.wellsgardner.com/pdf/Service/SERVICE%20BULLETIN%2030A%20NECK.pdf

using orig pcb or upgrade ?

qrz

Title: Re: D9200 in golden Tee Red goes out.(what transistors runs red?)
Post by: fairway2000 on December 30, 2008, 06:15:23 pm

Yep did all that. I did mount a fan in the machine. I saw my Blitz has 4 fans and never had a problem

Thanks