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Monitor specialist on the Gold Coast?


horseyboy69

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Howdy, I am hoping to find someone who is very knowledgeable about Monitors/chasis who would be interested to come to my place (Ashmore) for an hourly rate and teach me about monitors and chasis. I have 2 projects at the moment that are being held up due to monitor issues and I also want to learn first hand how to work with them safely. I am on holidays for the next 2 and half weeks and would be available day or night. Thanks, Ian
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Monitor help Gold coast

 

Can you tell me what chassis they are?

 

Thanks for the interest..Okay here goes!

 

Problem 1: I have a 20 inch Mitsubishi Colour Picturetube 51OUKB22 (LR42053) with a NANAO KB24033ID Chasis. The Horizontal size adjustor has a hex shaped inner that when I tried to adjust it just crumbled. Some of the games on this tube are cut off top and bottom and I can't adjust the screen size. Please see pictures of tube, chasis and Hor. Size adjustor.

 

Problem 2: (More serious I think) I have a 26inch Pentranic A63PNT13X tube with a JW-RODO_888A (21028001) chasis. I can't get this one to work at all. There does seem to be some dodgy looking solders under the bottom of the chasis. (Photo) That is directly under one of the silver things.

 

Any assistance would be greatly appreciated and I am still interested in having an in house tech have a look at an hourly rate.

 

Cheers,

Ian

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The horizontal pot can be easliy replaced, just need to pick one from a local tv shop, or electonic shop,i assume you have a soldering iron all you need is a solder sucker.

The second one,have you check the fuses on the chassis there will be at least one maybe two, if the fuses are ok then the most likely problem is the HOT (horizontal output transistor), check with a meter on diode test accoss the pins.

 

Thats the one on the metal plate opposite the FBT.

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The horizontal pot can be easliy replaced, just need to pick one from a local tv shop, or electonic shop,i assume you have a soldering iron all you need is a solder sucker.

The second one,have you check the fuses on the chassis there will be at least one maybe two, if the fuses are ok then the most likely problem is the HOT (horizontal output transistor), check with a meter on diode test accoss the pins.

 

Thats the one on the metal plate opposite the FBT.

 

Thanks for that. I will replace the Horizontal pot tomorrow and let you know how I go. I will get myself a meter and see if I can work out what the HOT is. I appreciate the advice.

Ian

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Are any of the caps swollen can't tell from the pictures.

 

Update: I couldn't get a horizontal pot from anywhere and ended up phoning Joey from Jomac. He explained that there is a setting which is Horizontal wide, middle and narrow. Mine was set to Wide because when I bought it, it had a mortal combal and the screen was horizontal. I have put in a 60 in 1 and rotated the monitor to the vert position. Anyway it was really obvious once he explained the different settings and the middle setting is perfect. (See photo) Problem is now solved for this monitor.

Thanks very much for your advice on this one. I will have a crack at some of your suggestions for the second one this weekend. I will update when I have more info.

Cheers,

Ian

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BTW for those who recognize the first chassis it's actually a Kaga Denshi KZ-20EN ,

Special note: never try to adjust the H-Size on any chassis with an Allen Key or anything metal .

The correct tools are plastic and can be purchased from Jaycar , called TV alignment tools , available in a set for less than $10 .

Although not needed most of the time because these coils will only fine tune the H-Size , they are not intended for any dramatic size issues.

 

The second chassis , is a nasty Rodo / Pentranic and like most chassis wont be as simple to fix as changing a few caps.

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BTW for those who recognize the first chassis it's actually a Kaga Denshi KZ-20EN ,

Special note: never try to adjust the H-Size on any chassis with an Allen Key or anything metal .

The correct tools are plastic and can be purchased from Jaycar , called TV alignment tools , available in a set for less than $10 .

Although not needed most of the time because these coils will only fine tune the H-Size , they are not intended for any dramatic size issues.

 

The second chassis , is a nasty Rodo / Pentranic and like most chassis wont be as simple to fix as changing a few caps.

 

I am still hoping that I can find someone who is very knowledgable with monitors and chasis if anyone is interested in coming around. I will supply all the beer. I hear that's a good mix....electricity and alcohol!!!

 

Jomac, thanks for your assistance. Does your generic chasis work with my monitor. If yes, how much? Sounds like a good solution.

Cheers,

Ian;)

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I am still hoping that I can find someone who is very knowledgable with monitors and chasis if anyone is interested in coming around. I will supply all the beer. I hear that's a good mix....electricity and alcohol!!!

 

Jomac, thanks for your assistance. Does your generic chasis work with my monitor. If yes, how much? Sounds like a good solution.

Cheers,

Ian;)

 

I have a replacement for both of your chassis , completely different to each other of course , I dont post pricing in threads because I would have to go chasing through all old threads when prices change .

 

Email or PM me if you need a replacement /pricing

 

BTW Ian I don't like your chances getting someone around to teach you / help you fix monitors , It's not the sort of thing that can learn't over a beer or several weeks.

Electronics has always been my hobby , so I had a good grounding to start with and it still took over 12 years before I could even begin to claim being an expert in monitor repair.

The endless days and nights for years and years is not something I could or would ever teach anyone , it is without doubt more difficult than many could ever imagine , probably the very reason there is only a hand full of us around the world specializing in this type of work.

I have had a guy working closely with me for nearly 15 years now who can still only repair about 10% of chassis faults.

 

Unfortunately there is no easy way to learn this sort of thing , it's dangerous , messy , complicated and frustrating , it can often cost more to repair chassis than they are worth , you can never have enough parts or the right ones , the variations and combination's are endless, the list goes on and on :)

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I have a replacement for both of your chassis , completely different to each other of course , I dont post pricing in threads because I would have to go chasing through all old threads when prices change .

 

Email or PM me if you need a replacement /pricing

 

BTW Ian I don't like your chances getting someone around to teach you / help you fix monitors , It's not the sort of thing that can learn't over a beer or several weeks.

Electronics has always been my hobby , so I had a good grounding to start with and it still took over 12 years before I could even begin to claim being an expert in monitor repair.

The endless days and nights for years and years is not something I could or would ever teach anyone , it is without doubt more difficult than many could ever imagine , probably the very reason there is only a hand full of us around the world specializing in this type of work.

I have had a guy working closely with me for nearly 15 years now who can still only repair about 10% of chassis faults.

 

Unfortunately there is no easy way to learn this sort of thing , it's dangerous , messy , complicated and frustrating , it can often cost more to repair chassis than they are worth , you can never have enough parts or the right ones , the variations and combination's are endless, the list goes on and on :)

 

 

I can believe that it is very difficult so based upon your advice I will leave this sort of work up to the experts. In the last week I have learnt alot on who to talk to and what not do . These forums are very helpful.

I will PM you RE a new chasis for the Pentranic.

Thanks,

Ian

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If your interested in learning about this stuff, its just a matter of rolling your selves up and getting stuck in. You know yourself if you have an aptitude to this work or not. If not leave to others, otherwise you learn from the mistakes that you make. Like most things once you pick up a little knowledge your mind awakens and learning goes to the next level, we never stop, learning that is. You always have Aussie Arcade to ask if you get stuck, plus there millions of sites on electonics, electricy, etc all on the web to help as well.
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If your interested in learning about this stuff, its just a matter of rolling your selves up and getting stuck in. You know yourself if you have an aptitude to this work or not. If not leave to others, otherwise you learn from the mistakes that you make. Like most things once you pick up a little knowledge your mind awakens and learning goes to the next level, we never stop, learning that is. You always have Aussie Arcade to ask if you get stuck, plus there millions of sites on electonics, electricy, etc all on the web to help as well.

 

Your right having the aptitude to start with is a major plus , the learning is exciting and very rewarding but as you know monitors are in no way the place to start your electronics learning curve , if you dont end up dead you will in more cases that not end up sending me a chassis with far more damage than it started out with.

 

People with electronics aptitude like yourself already know what is available and rarely ask for help , because as you know there are already more answers out there than anyone could have questions.

Simply asking how to fix something and being given the answer which part to change isn't learning at all , finding the answers yourself without asking is the only true gate to learning yourself., this requires more than aptitude , it requires initiative and time , a combination very few possess.

 

As I said in my sticky thread :

In summary if you are not sure what you are doing dont do it , some say trying is learning but when it comes to monitors unfortunately all most people learn is that they shouldn't have touched them to begin with .

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Simply asking how to fix something and being given the answer which part to change isn't learning at all , finding the answers yourself without asking is the only true gate to learning yourself., this requires more than aptitude , it requires initiative and time , a combination very few possess.

This is so true Joey. You have to have the desire to know how & why it works, not just that it does. By understanding this, you can apply that knowledge to new situations. Just replacing components without knowing why doesn't help you in the long run.

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