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Kenwood TH-D72 Extended TX mod

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  #25  
Old 01-02-2012, 01:09 PM
JVT JVT is offline
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Default THD72


I would like to do this mod but never removed a diode . Would it be a wise choice to try?
jim

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  #26  
Old 01-02-2012, 01:25 PM
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I would like to do this mod but never removed a diode . Would it be a wise choice to try?
jim
Jim, it works great, remove the diode, follow the steps posted.

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  #27  
Old 01-02-2012, 09:15 PM
JVT JVT is offline
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Default THD72

Maybe I should do some removal on a junk board first? you apply heat on each end and remove ? thanks,jim

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  #28  
Old 01-02-2012, 10:35 PM
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Originally Posted by JVT View Post
Maybe I should do some removal on a junk board first? you apply heat on each end and remove ? thanks,jim
Yes, first practice, use fine Tips for the soldering iron, and it would be a lot easier to use 2 soldering irons (pencil) at same time on each end, so that would remove very fast the component.

Good luck!

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  #29  
Old 01-09-2012, 08:21 PM
JVT JVT is offline
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i did it and all works fine. But you don't have to remove LCD. You remove the speaker. LCD stays in place. I just clipped and removed with some very small clippers from my wifes mamicure kit. I tested it by selecting the frequencies on my scanner and transmitting.
thanks,jim
oh,it has been 20yrs since I seen the new diodes. I've seen fly specks larger than them!

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  #30  
Old 01-10-2012, 12:25 AM
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Quote:
Originally Posted by JVT View Post
i did it and all works fine. But you don't have to remove LCD. You remove the speaker. LCD stays in place. I just clipped and removed with some very small clippers from my wifes mamicure kit. I tested it by selecting the frequencies on my scanner and transmitting.
thanks,jim
oh,it has been 20yrs since I seen the new diodes. I've seen fly specks larger than them!
Excellent news Jim!, removing the LCD is just for avoiding damage to it when the soldering iron is near.

regards, XE1BRX
Jonathan

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  #31  
Old 02-01-2012, 11:49 PM
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Great radio! just love it. The mod worked for me but like stated above full reset must be done. 73's

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  #32  
Old 06-30-2012, 10:41 AM
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Default Mod not working

I just picked one of these up in Japan for a good price and couldn't resist doing the mod, however, it doesn't work for me?

The unit has no diods at all on the main board in positions 1, 2, 3 and only 1x diode under the keys which needed to be swapped over (D729 -> D733).

I added a diode on position 3 on the main circuit board and nothing as changed in my transmit frequencies?

Open to suggestion but I might just leave the unit alone for now.

Regards

Neil.

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