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Highland Ham · September 2nd 08, 11:08 AM posted to rec.radio.amateur.homebrew

confused wrote:
Highland Ham;644645 Wrote:
Joe LeKostaj wrote:-
In article ,
confused wrote:-
hi joe thanks for your response.it has 3 pins on one side and on
thicker pin like a small heatsink looks like this
http://tinyurl.com/5ltz2j
i'd appreciate any help on where to get another or an equivalant.i've
looked through shed loads of smt code books online cant find same
code.i've tried contacting kenwood????

thankyou-

It could be a transistor as the other poster mentioned, but it could
also be a voltage regulator IC. Your best bet would be to obtain a
schematic and/or parts location diagram for your radio to help ID the

component. Then your next stop would be Digi-Key or Mouser to look for
a
replacement.

Also, try to determine what caused the part to fail before installing

the new one so it doesn't meet the same fate.

-Joe-
========================================
The OP did not mention the handheld radio model ,other than it is from

Kenwood. An instruction manual with circuit diagramme(s) of the
relevant radio can highly likely be found at : www.mods.dk

Frank GM0CSZ / KN6WH

hi,
thanks to all responders .there are three on the same board.the model
is a th-26 handheld 2m.i've checked all the surrounding resistors and
nearby passives .i think its a power supply problem.i dont want to
power it up yet until i find out what this part doesi dont want to take
another one of these ants lol out and check it out of circuit.smt is not
my thing.i've searched for a free schematic so if anyone out there's got
the schematic that'll be great .i'll take on board what you guys have
said many thanks for taking the time.
================================================== =
Have a look at www.mods.dk
Manuals ---- Kenwood
TH-26 Instruction Manual .zip
TH-26 Service Manual.zip

You can only download 1 manual within a 24 hrs period unless you make a
donation towards maintenance of the web site.
So 1 manual today ,another manual tomorrow ,etc

Frank GM0CSZ / KN6WH

confused · September 10th 08, 04:35 PM

Quote:

Originally Posted by Andrew VK3BFA[_2_]

On Sep 1, 2:05 am, confused wrote:
anyone seen a surface mount part only markings on it are d k 9 z.it's on
a kenwood handheld tranceiver of mine which has burnt out.would
appreciate any info?
many thanks

--
confused

you need to do it logically and scientifically, which is the basis of
our hobby.

1.Get the service manual.
2.Get the part no, try Kenwood, if no go, then
3.Look at circuit diagram, identify component, replace with similar -
its unlikely to be critical.

I suspect you are out of your depth at this stage in your amateur
career, and perhaps it would be wise to seek the help of a local
technician or knowledgeable amateur - your local club could probably
help with contact details...

Andrew VK3BFA.

i checked the components characteristics .seemed to be two diodes on one chip.replaced it with two smt diodes and it works.
thanks for all your advice.

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