Comments on: Going For A Fishing Trip

By: admin

admin — Mon, 25 Jan 2010 11:59:25 +0000

Hi MALCOLM,

You mean you have two LCD TV problems, one is missing one of the color and the other one is have sound but no display?

If you have scope you can compare the RGB color circuitry. The second one, is there any supply voltage present at the inverter IC?

Jestine

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By: Paul

Paul — Sun, 24 Jan 2010 00:11:08 +0000

Have a nice trip! Catch the biggest and the most exotic fish in the world!

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By: Malcolm

Malcolm — Sat, 23 Jan 2010 23:49:27 +0000

Hi Justin sorry i have not written be for now my name is Malcolm i have red your first news letter for 210 have just bought your Book on power supply the thing is i am disabled i am in a wheelchair but this dose not stop me from doing most things i have a few test meters i am going to get a scope when i can also have a rework station am vere interested in doing LCD TV work at the moment i have to that i would love to mend fist one works fine but has one color completely missing second one has got sound but no picture have changed the inverter but still the same no sure if second inverter is working though do not no how to test hope you can help or talk me though it love reading your e book it is great Thanks

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By: behzad

behzad — Sat, 23 Jan 2010 22:26:18 +0000

ok this time no problem but next time

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By: admin

admin — Sat, 23 Jan 2010 13:22:56 +0000

Hi Yong,

Most probably it is a 5.6 volt zener diode. Try check out this link:

https://www.jestineyong.com/?p=2549

Jestine

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By: admin

admin — Sat, 23 Jan 2010 12:18:00 +0000

HI Keith,

Try this link:

http://www.bluestar-online.com/SearchResults.asp?Search=4431&Search.x=0&Search.y=0

For your information, recently their service was not that good and if you proceed to order,you must take the risk. or you can call them first you purchase the parts.

Jestine

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By: admin

admin — Sat, 23 Jan 2010 12:13:40 +0000

Hi Ian,

Sorry, i do not have the flyback part number. Guess you need to find the service manual and locate the part number.

Jestine

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By: admin

admin — Sat, 23 Jan 2010 12:08:49 +0000

Hi Behzad,

The result was not good. There's no big fish and came back with small fishes.

Jestine

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By: yong wb

yong wb — Fri, 22 Jan 2010 20:55:37 +0000

Mr. Jestine Yong ,

Sincerely hope you had a good harvest from your trip , be it materially or otherwise.

Well , I just wish I am not too rude to post for a help the moment you are at your door step . Apology if I do .

I had a shorted diode (the common diode symbol) with a green, blue bands on the body ;one end of the conducting legs had a blue mark .
It is from the secondary of a switching transformer and one end is grounded .

I cant find the spare but I have a bunch of diodes which has the same physical size but no colour bands.

How can I determine if one is of zener , say , 5.6V then ? -

Thank in advance .

Kong Hee Fatt Choy

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By: behzad

behzad — Fri, 22 Jan 2010 13:33:40 +0000

jestine this time just focus on tuna fish and catch a big one

and bring back home and send me a picture
tnx
beh

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