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#20 Radio Repair: Kenwood TH F7, no switch on 

TRX Lab
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The TH-F7 doesn't switch on. Problem only on Batteries operation.

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20 окт 2024

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Комментарии : 37   
5 лет назад
Many thanks for nice video thees very good help for repair my transceiver. Many thanks again an best 73 from F8CRM chris.
@TRXLab
@TRXLab 5 лет назад
Glad that my videos are helpful to you, Chris! Thanks for feed back 73 By the way you life in a very nice area in your country!
5 лет назад
@@TRXLab Thank you so mutch very best 73.
@lyntonprescott3412
@lyntonprescott3412 5 лет назад
Another one of those tiny radios! Well done. 73
@wadepatton2433
@wadepatton2433 2 года назад
At 3 minutes in I knew what the problem was. My F6 did the same thing and another ham (a professional tech and another F6 user) suggested where to look and I got it working again. I wonder if this is a common issue.
@g1fsh
@g1fsh 10 лет назад
Another great job super work really nice soldering
@TRXLab
@TRXLab 10 лет назад
Thanks, yes soldering is sometimes a challenge :-)
@douglasbollinger3626
@douglasbollinger3626 11 месяцев назад
Hello - can a bad DC plug prevent a handheld from working on both AC plug and DC battery pack? I have an older Radio Shack HTX-204 that will not turn on with battery pack or AC plug. Thank you! (Update...replaced the DC jack and no difference, radio is still "dead".)
@TRXLab
@TRXLab 11 месяцев назад
Under some circumstances, it is imaginable..
@douglasbollinger3626
@douglasbollinger3626 11 месяцев назад
@@TRXLab I replaced it, but still nothing...radio is still dead. I've spent hours on it, can't figure it out.
@midnightgunnerTV
@midnightgunnerTV 9 лет назад
Have you been watching EVV I notice you called the new part a "little sucker" LOL on a serious point soldering so close to the SMD components is a brave move but you fixed the problem job well done
@TRXLab
@TRXLab 9 лет назад
Sean R Hi Sean, you mean EEV? Haha yes of course LOL. I'm no native speaker so that I need to rob here and there :-) Thanks for feed- back
@IW2BSF-Rodolfo
@IW2BSF-Rodolfo 8 лет назад
dear collegue , but..the code of the spare part of the J1 the power input jack ? and where you order it ? cost ? is original by kenwood or ? best 73
@TRXLab
@TRXLab 8 лет назад
+IW2BSF Rudy Hi Rudy, well I don't have it in mind. Please download the service manual and there you find the original spare part number. I have ordered the part via Kenwood spare part distribution. 73
@midnightworrior2910
@midnightworrior2910 6 лет назад
Sir, do you take radios in for repair, and if so, how may I contact you?
@Bonewerkz
@Bonewerkz 11 месяцев назад
Ich habe das Problem mit meiner Funke,dass der Ein/Ausschaltknopf nicht mehr geht. Ansonsten ist die Tastatur ok, jetzt ist sie fix eingeschaltet, auf dem Landegeraet ging sie,und auf dem Akku ebenfalls. Sie laesst sich aber nicht mehr ausschalten....
@PatagoniaTrekkerHam
@PatagoniaTrekkerHam 9 лет назад
Hi, do you know if the radio has a backlit pannel (on the key pad) ? Regards from Patagonia CE-8-EYS
@TRXLab
@TRXLab 9 лет назад
PatagoniaTrekkerHam Hi, yes of course it has backlit. 73
@technos123
@technos123 9 лет назад
Very nice repair and interesting to watch you work with such small components. If the problem had have been with the battery is there anyway it could be brought back to life without have to buy a replacement.? I am thinking of older handheld radios were buying a replacement battery may not be economically worth while.
@TRXLab
@TRXLab 9 лет назад
technos123 Hi, well to refresh old batteries is nearly impossible. The only advice I have is try opening the batteries housing and swap the old elements to fresh cells. Thanks for feed-back. 73
@teunaydin
@teunaydin 3 года назад
Excellent rig dont exist anymore
@stopnwonow5044
@stopnwonow5044 5 лет назад
4:15 That problem happened to my TH-F7, he just died. The problem was a smd fuse blown.
@PeterWalkerHP16c
@PeterWalkerHP16c 8 лет назад
I wonder if this issue is the use of non Kenwood charger plugs or perhaps stress from the cord when using the rig whilst charging? Anyway great job as usual. More watchmaker work!
@TRXLab
@TRXLab 8 лет назад
+Peter Walker This one was connected to an external power supply and most likely no Kenwood plugs. 73
@teunaydin
@teunaydin 2 года назад
You are german y triple checked it I am sure excellent expert job 73s
@kalashnikov6640
@kalashnikov6640 7 лет назад
please help i have Kenwood TK-3207 do not work how i fix it please
@tarapos
@tarapos 9 лет назад
how do the knobs come off? I don't want to break them
@TRXLab
@TRXLab 9 лет назад
+tarapos carefully pull the knobs that's it.
@budleyca1
@budleyca1 10 лет назад
Very nice work...
@TRXLab
@TRXLab 10 лет назад
Thank you for the fed back!
@Wuenni1848
@Wuenni1848 5 лет назад
Great Video :)
@TRXLab
@TRXLab 5 лет назад
Danke Michael :-)
@TRXLab
@TRXLab 5 лет назад
Hoffe du bist schon ein Stück weiter mit deiner...
@stopnwonow5044
@stopnwonow5044 5 лет назад
4:36 I see that the battery has a hump. It seems to be a little swollen. It is a very bad idea to connect the transceiver to an external power source with a high amperage with its battery assembled. The ideal is to put a piece of electrical tape on the contacts of the battery so that it does not suffer overload.
@OctavMandru
@OctavMandru 2 года назад
You don't really know how this works, sorry
@stopnwonow5044
@stopnwonow5044 5 лет назад
The TH-F6/7 is small, beauty & nice, but is not a great handie. The device suffers a lot of birdies, false carriers in rx, and is quite deaf in some bands. There are V/U band segments where it lose RX sensitivity. In air band simply does not receive anything. And in HF has poor reception. Many radio amateurs consider the TH-F7 a scam. And I also. It's a expensive AM broadcasting receiver.
@teunaydin
@teunaydin 2 года назад
I can sent y demo for airband performance it is good performer in swl as well see my videos if y interested 73s
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