Peter, your followers just like to watch your thought process (methodology) when troubleshooting radios. You are one of the best radio service technicians on KZfaq. Please keep all the videos coming, even the simple ones.

Wow. I have never held a soldering iron. Yet I am on the edge of my seat while watching you repair this radio. Very interesting. Thank you!

Ich habe gedacht, die Arbeit an der Elektronik zu beenden, da die Teile zu klein sind für meine schlechten Augen und ich habe kein Mikroskop. Große Reparatur wie immer.

0:00 - 0:08 is the best Yaesu commercial ever

Again another problem solved! You are the best! 👍❤️

Nice troubleshooting and repair. Thanks for another educational video. Cheers, VE7QJ

As usual, Peter, another well done repair video! It's so nice to watch skilled folks like you, Mike, Paul, Alan, etc. to see different troubleshooting techniques. I have been doing component level repairs for over 20 years and I still learn from you guys.

Not an expert by any means…but I’m glad I’m not the only one who gets the diode orientation mixed up sometimes! Your videos are always excellent. Good, detailed and clear step by step instructions. Your English is excellent as well. Thank you for taking the time to make these videos!

Love the video's dude. I have learned so much! Keep up the good work!!

Another fantastic job by TRXBench! You made this repair look so easy Peter. Well done. This shows how confident you are with these radios. Ok back to work here, I have a shop full of rigs. 73.

Nice to see an nice repair again, loving it. Every time I get I little bit more knowledge from it. Thx

I just learned so much my brain exploded. These videos are so good!

great repair thank you for taking time to do video..top notch tech, Peter

Peter, your knowledge and skills always amaze me! I love your channel!

Terrific diagnostics and repair. Really great video,

Nice piece of electronic detective work.😄

I must be learning something from your videos as I was calling the shots just before you made them, great work, good to see the radios come back to life.

I always appreciate the extra work you go thru to do these videos, Peter. This repair reminds me of fixing the infamous IC151 in a Icom 746. I used aluminum HVAC tape to protect the surrounding parts. Thank you!! - Bob

To remove a definitely faulty SOIC component without heating and dislodging nearby components, cut each pin close to the case with a small thin sharp sidecutter, then remove the pin stubs from the pads individually with a soldering iron and solder-sucker or solder wick. It is important to use a thin sharp sidecutter so that the pins do not snap sideways when cutting, which can lift the pads from the PCB if the pad traces are thin (in this case the traces are as thick as the pads so it is not as much of an issue). You can also use a very sharp knife to cut each pin, though that requires a bit more skill to avoid slipping and damaging the board. Solder-wick the pads, clean and then apply flux so that there is a flat surface to lay the new component onto. Then clean off the flux.

This was very helpful, and fun to watch! I have an IC-7100 that's not producing any power on HF, so according to this, it could very well be the HF pre-amp on the amplifier board... good to know. Big thumbs up for the video!

Thanks Peter, I have learnt a lot watching your excellent videos regards Mike

Another great informative video Peter thanks for posting.

Thanks Great VDO Loved

Another great repair Peter and my eyes aren't so good these days either! Thank you :)

Peter, thank you for sharing. When I was in electronics school we didn't have videos like these (1987) and I don't think I got as much out of it as I do from your excellent u-tube videos.

Another great repair Peter. Two suggestions. One is to use Kapton tape to help shield surrounding components when using a hot air hand piece. The second is to use a SMD desoldering alloy. I did a video the other week where I demonstrated how to use it. Great for use in areas where hot air reflow isn't practical.

Another great video Peter. I am learning lots about smd watching your videos. 👍

Thank you master....great explanation

thanks for the very clear step by step run through of your fault finding process. just goes to show you must double check work at every stage just to be sure that you dont get confused at the end

Nice video Peter, I like that you go into details, used your signal generator to simulate estimated input to the output board and isolated 'blocks' of the signal path to identify the trouble location. Though you wetted my curiosity with what the 'normal' output of the low level amp would be once it was replaced. It would have been nice to see if it in fact was +3DBm or what it would be once connected to the output board. Thanks again for your time making these videos.

Another great video!

Good video Peter; the BW of those MMIC's always amaze me!

Thanks! for the Video this is what i am looking for in tracing back the single back from the amp :D

GREAT JOB

Best mentor out there.

Good summer video...'73. Have a nice day !! CIAO.

My maths must be off. According to the specs, the current drain of the BGA2709 is Is= 23.5 mA. Across a 100 ohm resistor, that equates to a voltage drop of 2.35 volts. Therefore the voltage at the chip should be Vs= 5 - 2.35 = 2.65 V.

With the confusion about the polarity of the diode I always mark components with a felt tip pen before removing them and make a mark on the board to confirm this.

Nice repair Peter :)

Nice video once again my friend.

🤙

Great diagnostics and fix here my friend. Always a joy to watch. Regards, John

Good video as always Peter, I was surprised you didn't use kapton tape, I'm sure I have seen you using it in previous videos. I have a stack of radios I need to get videos done on!

Hi Peter. That diode with the orientation problem. Rewind your video a few minutes and take a look at the placement. If I do a repair, like you, I always video what I do, just in case I lose track of a component or or its placement on the pcb. I always enjoy the professional way you go about finding a problem. I too have an IC-7100, IC-7300 FT-2000 and an FT-817. Just one thought that you might do for us viewers: Before or during your videos, could you take a few moments to highlight common problems you have found with the radio you are working on? It helps us collect the components that are known to commonly fail for a possible future repair we might have to do to keep in our personal stock. Regards Tony - G6YPK

Nice job, I know how depressing it is now not to have good Eyesite anymore to work with smd, I used to be able to read the serial numbers, now I can hardly see the bloody things even under a magnifying glass....used to love doing repairs, cant do them anymore, it really saddens you and kills part of the hobby and enjoyment you had.

LOVE YOUR VIDEOS PETER, MY VISION IS THE REASON I USE CAPS LOCK. IF I AM BEING PICKY I AM SORRY BUT WHEN YOU SEE THE WORD MIC FOR MICROPHONE PRONOUNCE IT MEIK :-) KEEP THE VIDEOS COMING MEIN FREUND. :-)

love the methodical testing. one question is why didn't you use Kapton / polyamide tape and aluminum / aluminium foil to shield around the adjacent components?

I always look forward to your videos, I especially enjoy the way you take us step by step through the repair process. You make me feel like I am sitting right at the bench with you. I've seen the ic-7100 in a few of your videos. As an owner of a 7100 I want to ask, are these operator induced failures?

Great work Peter! This is the proof of being methodical always pays. A quick question; I want to build a 1KW HF lineer amplifier for my station, I found a lot of schematics on the internet but I don't know about their quality. Since these kinds of transistors are very expensive, I don't have the budget to experiment and make mistakes. Can you advice me a circuit that you know works well, and fairly easy to build with easy to find parts? I know that tube amps are much easier to build and they are tougher, but I have no experience with tubes and they are not very easy to find in my country, so it seems I'm stuck with transistors :-) 99% of the time I work in 40 and 20 meters, so it really doesn't need to include other bands. Many thanks! TA2AWX

Fantastic trouble shooting, enjoy every video!

Thank you for this nice video , I have IC7100 no TX for all band only RX , I change IC BGA2709 and it work normally about 2 month, then stopped again, I change it again its work normally about 2 month and stopped , I think there is some think error I don’t Know it, can you help me……

just use a sharp blade to cut the terminals of the SMD IC, lift it from the board, and a 20 watt Weller to clean the remaining terminals from the board. Use the same Weller to solder in the new part. It's a lot easier, and cleaner procedure.

Very nice result there.. I had Icom IC-2300H with weak modulation, which ic should I'd check? Thanks.

Hi, I checked my BGA2709, its 5vdc.. but the problems are same..

Is this the same rig you did the capacitor and bridge mod too??

Do you have something for fdx3000 with no output/transmit?

i make them with same nail polish

(y)

that chip looks like a dust might,do not drop it you will never see is again ..jeff..

Any chance you could send me a copy of the BSD please ? I am a 7100 owner and would like to see how it's designed ! 73's

Too much blahh blahhh