you do a good job of explaining to viewers the pitfalls of attempting to repair before there is an good understanding of what is required. i've never been a fan of solder across pads no matter the amount although the amount used in this video was not only past a reasonable amount but into just common sense, the owner of the rig hopefully did not intend to lay down the blob, it just happened and after seeing the damaged cable decided (wisely) to just stop. when i was learning to solder back in 1960's one had to have books or a friendly electronics repair shop/school teacher or radio shack, there was no internet where one can spend an hour or so to get a decent quick education on stuff, so i'm amazed at some of the stuff i see happen. but, good video and thank you.
Man seen this quite a bit. Not only cables but plastic parts, wires, connectors all burnt from soldering irons. Good job at getting it back to working condition Mike.
Mike great video thank you. I never used a zero ohm board mount resistor and when I go to order I see things like thick film, cut tape etc. so I do not order the wrong component can you elaborate just a little more so we are sure we are installing the correct component you suggest. Thanks.
Yeah I've seen a lot of this stuff as well. Love it when they try modifications when under warranty, oops no warranty. Try working on Motorola commercial gear! Microscope, hot air tools and a steady hand. Kenwood, ICOM, Motorola portables, all a real nightmare to work on.
I've got the same mod on the Yaesu FT-950 for the extended TX I didn't do it somebody else has done it but my radio transmits on all bands but I try to stay in the amateur radio bands only and I try not to use the 11 meters because that's highly illegal to use but the temptation is always there just to have a go but I try not to do it to often but the Yaesu FT-950 is a fantastic radio and works great on all of the HF bands and I've had no problems with it at all so far so everything's been great. Stephen M3SNV 73's.
Would you happen to have an IC for this ft-757, MC1468050, Yaesu part #(SC82088P) my switch for the 500k step doesn't work, and I traced it to pin 15 of this chip, the voltage changes from 0 to 5V pressing the button, but 500k steps doesn't work
Hi Mike, just wondering if You've don a recap on a kenwood ts940sat, because I have one that needs that job, done, I'm going to attempt it Myself, I'm out in the bush in Aussie and No techs for Miles & Miles, regards, Des
My Yaesu FT-950 is only giving me 50w output. I changed the power level from the menu to 100 but when I transmit the power level only goes to 50w. Any suggestions on how I can get 100w? By the way, the jumper on jp3006 and jp3007 has no zero ohm resistor when i bought this radio, will that be the reason why it only gives 50 watts output?
Did you send the guy instructions on how to use a left- hand hammer to use as a screwdriver for further attempts at repairs or how to use a 10" disc grinder/cutter to polish up his silver ware ?. It is hard to believe that anyone could do that to a beautiful radio. Most have more money than sense has we say in Yorkshire.
@@mikesradiorepair Thank you Mike but i did call them but they don't stock the part any more, that's why i keep ask around for a new or used board lol.. .Thanks alot and if you ever run across a board keep me in mind PLEASE as the radio works fine but shuts down after 15 minutes.. The problem was traced to the MC BOARD.
Will take a poke at it but I think it's the main ic on the board and that's a nono for me lol. Maybe i should send it to you. Thank you Sir again. De 9Y4D
I usually use some ink out of a CircuitWriter silver-based conductive ink pen and the end of a paper clip, I squirt some "CircuitWriter" out on something that is not the radio ...a piece of paper works well. Take a dab (as in a really small amount" of "CircuitWriter" to the end of the paper clip and place it in between the factory solder blobs that are all ready on the board in the jumper spots. No I don't leave the paper clip in the radio. I say that because we all know the somebody will ask or try to sound smarter than the average bear and make some comment like "I hope you remove that paper clip from the radio".
Wow this is a good picture of how not to mod your radio lol .... It takes a longtime to learn how to work inside of small places with a hot iron and that is why I do not recommend anyone doing mods to their owe radios Mike.
Zero ohm resistor is often used when the designer is not sure they might need a inductor or ferrite bead in the line to tame any parasitics or noise, and do not want to have to redo the board to put one in, so a low value resistor ( they are not zero ohm, just a few milliohms to under a half ohm) as placeholder is a good compromise. As well in this application just use low value SMD resistors, as likely the pull up resistor is almost any value ( as in already on the PNP machine in a roll, no extra feeder needed) resistor from 1k to 220k, so to pull down all you need is any SMD resistor under 100R as a zero ohm jumper. Can be almost any value there, all you are doing is making a logic signal to the microcontroller that is in the valid logic range, and the current through the resistor is tiny, so any low value will still pull down close to 0V.
@@mikesradiorepair Well I'm sure it is that easy when you work with that tiny 0.5 mm spacing cable and its associated connectors all the time. It is not obvious to me trying to plug a cable back in for a friend of mine that got pulled out by accident. One end had the connector broken and at the other end the connector was removed. The pins on the display circuit board are tiny and fragile. Also they are recessed below a metal shield. The replacement cables you showed did not have connectors. Just the ribbon wire so I would have liked to see which side of the cable goes into the plastic connector. I did not get to see the cable in his FT-950 with the ribbon properly attached or the connectors plugged into the circuit boards so it would have been helpful to watch you replace it.
I like a Man that makes a video for his own enjoyment !!
He records it so that he later knows how to put it back together.😉
Mike is a good teacher...thanks
Hi Mike; Nice Radio! Great Job on the Repair.
you do a good job of explaining to viewers the pitfalls of attempting to repair before there is an good understanding of what is required. i've never been a fan of solder across pads no matter the amount although the amount used in this video was not only past a reasonable amount but into just common sense, the owner of the rig hopefully did not intend to lay down the blob, it just happened and after seeing the damaged cable decided (wisely) to just stop. when i was learning to solder back in 1960's one had to have books or a friendly electronics repair shop/school teacher or radio shack, there was no internet where one can spend an hour or so to get a decent quick education on stuff, so i'm amazed at some of the stuff i see happen. but, good video and thank you.
Man seen this quite a bit. Not only cables but plastic parts, wires, connectors all burnt from soldering irons. Good job at getting it back to working condition Mike.
Mike great video thank you. I never used a zero ohm board mount resistor and when I go to order I see things like thick film, cut tape etc. so I do not order the wrong component can you elaborate just a little more so we are sure we are installing the correct component you suggest. Thanks.
The black cable is burned out too ^^ And the lot dot is cold , an blowing job ^^
Nice one Mike, thanks for the fix.
Yeah I've seen a lot of this stuff as well. Love it when they try modifications when under warranty, oops no warranty. Try working on Motorola commercial gear! Microscope, hot air tools and a steady hand. Kenwood, ICOM, Motorola portables, all a real nightmare to work on.
I've got the same mod on the Yaesu FT-950 for the extended TX I didn't do it somebody else has done it but my radio transmits on all bands but I try to stay in the amateur radio bands only and I try not to use the 11 meters because that's highly illegal to use but the temptation is always there just to have a go but I try not to do it to often but the Yaesu FT-950 is a fantastic radio and works great on all of the HF bands and I've had no problems with it at all so far so everything's been great. Stephen M3SNV 73's.
Great Info Video.73
We miss mikes channel in 2022.
Would you happen to have an IC for this ft-757, MC1468050, Yaesu part #(SC82088P) my switch for the 500k step doesn't work, and I traced it to pin 15 of this chip, the voltage changes from 0 to 5V pressing the button, but 500k steps doesn't work
Can you solder a smd fuse to jump the 0 ohm resistor???
Mike - What's your impression of the FT-950? Does it appear to be a decent rig?
Once again, You Da Man! Nicely done Mike. Thank you. Joel
What is the Mars mod for the icom 740
happy customer that he was able to send the radio to you. Well done Mike but the big solder globs was a kind of art and you took it away LOL
Why didnt the guy just order a new ribbon cable and replace it?
Hi Mike, just wondering if You've don a recap on a kenwood ts940sat, because I have one that needs that job, done, I'm going to attempt it Myself, I'm out in the bush in Aussie and No techs for Miles & Miles, regards, Des
My Yaesu FT-950 is only giving me 50w output. I changed the power level from the menu to 100 but when I transmit the power level only goes to 50w. Any suggestions on how I can get 100w? By the way, the jumper on jp3006 and jp3007 has no zero ohm resistor when i bought this radio, will that be the reason why it only gives 50 watts output?
What size wattage zero ohm resistor do you use Mike ?
Joe HamRadioGuy He drinks diet water when he works on radios
Very informative video. I have a question you referred to a bench cookie? What is a bench cookie?.
Thank you for the great upload
Bench Cookies are the little orange disc the radio is setting on. They have anti-slip material on either side of them.
Did you send the guy instructions on how to use a left- hand hammer to use as a screwdriver for further attempts at repairs or how to use a 10" disc grinder/cutter to polish up his silver ware ?. It is hard to believe that anyone could do that to a beautiful radio. Most have more money than sense has we say in Yorkshire.
yay mike.
How do I contact you regarding a radio repair? Website and contact info? Thanks!
A Googolplex worth of screws! LOL that's like 10^10^100, or a 1 with 10^100 zeros behind it! A LOT of screws!
would you mind linking where I can get that exact zero ohm jumper resistor ?
Mike?
I believe Mike said it was a 0605 0 ohm resistor. Check ebay or digikey.ca or digikey.com
Mike, do you happen to have a MAIN CONTROL BOARD for the Yaesu ft2000d or do you know where i can get one new or used,,? De 9Y4D.
Contact Yaesu. They still provide parts support for this model.
@@mikesradiorepair Thank you Mike but i did call them but they don't stock the part any more, that's why i keep ask around for a new or used board lol..
.Thanks alot and if you ever run across a board keep me in mind PLEASE as the radio works fine but shuts down after 15 minutes.. The problem was traced to the MC BOARD.
You already have it tracked down to what board the fault is on. Just diagnose the fault on the board and repair it.
Will take a poke at it but I think it's the main ic on the board and that's a nono for me lol. Maybe i should send it to you. Thank you Sir again. De 9Y4D
Do you work radios still? How canI get in touch with you?
great video. Good to see you working on different kind of stuff. Any plans to do more videos with the red pitaya?
And the modification....???
I had this radio very nice rig
Any chance of a package of ribbon cables like those in the video - but for the Icom 745?
Been off air too long waiting for those.
Twelve minutes, and you DON"T show the repair. Great.
Looks like he had too much 'liquid courage' before starting repair.
I did the same thing on the same radio....ordered new ribbon cable...cost me one dollar and 25 cents.....coulda been worse
I liked the video. I wish I could see the zero ohm resistor placement.
I usually use some ink out of a CircuitWriter silver-based conductive ink pen and the end of a paper clip, I squirt some "CircuitWriter" out on something that is not the radio ...a piece of paper works well. Take a dab (as in a really small amount" of "CircuitWriter" to the end of the paper clip and place it in between the factory solder blobs that are all ready on the board in the jumper spots. No I don't leave the paper clip in the radio. I say that because we all know the somebody will ask or try to sound smarter than the average bear and make some comment like "I hope you remove that paper clip from the radio".
Wow this is a good picture of how not to mod your radio lol .... It takes a longtime to learn how to work inside of small places with a hot iron and that is why I do not recommend anyone doing mods to their owe radios Mike.
Yes, that is a good point. Normally one would practice by by actually building a crystal set, then onto a one valve (tube) radio etc.
That is a nice radio
What you are saying is they think it’s a CB so they tried to make it work on 11 meters. LOL It is FUNNY 😄 I must say so thanks for sharing LOL 😂
I would have liked to see the MARS frequency in operation. Nice video, tho.
Zero ohm resistor is often used when the designer is not sure they might need a inductor or ferrite bead in the line to tame any parasitics or noise, and do not want to have to redo the board to put one in, so a low value resistor ( they are not zero ohm, just a few milliohms to under a half ohm) as placeholder is a good compromise.
As well in this application just use low value SMD resistors, as likely the pull up resistor is almost any value ( as in already on the PNP machine in a roll, no extra feeder needed) resistor from 1k to 220k, so to pull down all you need is any SMD resistor under 100R as a zero ohm jumper. Can be almost any value there, all you are doing is making a logic signal to the microcontroller that is in the valid logic range, and the current through the resistor is tiny, so any low value will still pull down close to 0V.
I usually use a single strand from a spare piece of wire.
YOU DID NOT SHOW THE RIBBON REPAIR !!!!
If I didn't sorry. Procedure, unplug cable, plug in new cable. :-)
@@mikesradiorepair Well I'm sure it is that easy when you work with that tiny 0.5 mm spacing cable and its associated connectors all the time. It is not obvious to me trying to plug a cable back in for a friend of mine that got pulled out by accident. One end had the connector broken and at the other end the connector was removed. The pins on the display circuit board are tiny and fragile. Also they are recessed below a metal shield. The replacement cables you showed did not have connectors. Just the ribbon wire so I would have liked to see which side of the cable goes into the plastic connector. I did not get to see the cable in his FT-950 with the ribbon properly attached or the connectors plugged into the circuit boards so it would have been helpful to watch you replace it.
mount everest like that i bet you had a job to climb that one ..jeff..
Crap that is a Blob of solder...
Typical, all talk no action