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Main => Monitor/Video Forum => Topic started by: +Simpson+ on March 26, 2013, 04:16:59 pm

Title: Telco KT-1403V
Post by: +Simpson+ on March 26, 2013, 04:16:59 pm

Hello,
I come from germany and my english is not so good, sorry.  ;)
I hope I can find help here. I have a merrit megatouch XL with a Telco KT-1403V Monitor.
The monitor start up with unplug the signalcable from the motherboard.
If I plug in the connector, the monitor turns off with a horizontal line.
The motherboard is OK, because I tested it with a PC-Screen.
Where can I find the schematics?

lg
Jürgen

Title: Re: Telco KT-1403V
Post by: Ken Layton on March 26, 2013, 05:58:48 pm

Merit type 51 (Telco/Kortek KT-1403V) schematic:

http://www.meritgames.com/Support_Center/Type%2051.jpg (http://www.meritgames.com/Support_Center/Type%2051.jpg)

The repair guide I wrote:

http://home.comcast.net/~mtpacifico/_kenskorner/files/Kortek-Telco_KT-1403V%20Monitor%20Repair%20Guide.pdf (http://home.comcast.net/~mtpacifico/_kenskorner/files/Kortek-Telco_KT-1403V%20Monitor%20Repair%20Guide.pdf)

Title: Re: Telco KT-1403V
Post by: +Simpson+ on April 07, 2013, 03:40:29 pm

Thank you Ken !

It work now.  There was a capacitor broken, C414 3,9nF 2KV in the horizontal output stage.

My Mainboard is a little different from your repair guide and from the schematic.

For example you wrote: "The horizontal output transistor is type BU2508DF (has internal damper diode) which crosses to an NTE 2353."

But I have a BU2508AF without the damper diode. (and much more little differents)

But now I'm happy and can play my Merit.

Greetings
Jürgen