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Seeking help from the brain trust, thanks. Rig not getting power thru rear connector, runs ok on battery. Have tried multiple plugs, cables, power sources, etc. Port is clear (no fragment of plug inside). Visual inspection under hood does not reveal any obvious (to me) defect. Appreciate suggestions, guidance, magic wands, etc ;-) Thanks all and best 73. :Steve KA2YRA
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On my '817 it was the SMT solder joint at the back of the connector that cracked, which made it intermittent.
The only other thing actually in series with the external power, which is not in the battery path is the diode D1085
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I guess that a visual inspection is not enough. You have to use test equipement because not all problems can be seen with your eyes. I also had a broken connection after resoldering all worked fine again.
Good luck,?? Kees PA1CJT?
Seeking help from the brain trust, thanks. Rig not getting power thru rear connector, runs ok on battery. Have tried multiple plugs, cables, power sources, etc. Port is clear (no fragment of plug inside). Visual inspection under hood does not reveal any obvious (to me) defect. Appreciate suggestions, guidance, magic wands, etc ;-) Thanks all and best 73. :Steve KA2YRA
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I'm going to go with the help desk first question: Did you check that menu setting 7 is set to the rear connector?
72 de Bryan, k0emt
On Thursday, September 1, 2022 at 02:32:36 PM EDT, Steve Rosman <stvrosman@...> wrote:
Seeking help from the brain trust, thanks. Rig not getting power thru rear connector, runs ok on battery. Have tried multiple plugs, cables, power sources, etc. Port is clear (no fragment of plug inside). Visual inspection under hood does not reveal any obvious (to me) defect. Appreciate suggestions, guidance, magic wands, etc ;-) Thanks all and best 73. :Steve KA2YRA
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Op is talking about not getting DC power through the rear power input not power from the RF connectors.?
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The DC connector is a definite weak point. There is a very thin PCB track which can fracture. Also, frequently taking the plug out and back in again can loosen the solder joints from the socket to the PCB. I had this problem a while ago. Unless you are REALLY skilled with the iron (which I’m not!!) it’s a job for the professionals. Then when it’s been repaired, fit the rig with the type specific Power Poles. That way, you can disconnect the PPs as often as you like, as the PP connector stays permanently attached. Yaesu UK did mine for a very reasonable price. 73
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On 2 Sep 2022, at 08:10, Bryan Nehl <k0emt@...> wrote:
?
I'm going to go with the help desk first question: Did you check that menu setting 7 is set to the rear connector?
72 de Bryan, k0emt
On Thursday, September 1, 2022 at 02:32:36 PM EDT, Steve Rosman <stvrosman@...> wrote:
Seeking help from the brain trust, thanks. Rig not getting power thru rear connector, runs ok on battery. Have tried multiple plugs, cables, power sources, etc. Port is clear (no fragment of plug inside). Visual inspection under hood does not reveal any obvious (to me) defect. Appreciate suggestions, guidance, magic wands, etc ;-) Thanks all and best 73. :Steve KA2YRA
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I had the power connector on mine go dead. When I opened up the case and looked at the pc board, I saw a couple chip capacitors on the board. One had apparently shorted and burned the DC input circuit board pattern off the board. I managed to repair it. But then, I put one of those plug-to-Powerpole adaptors on. That relieved the strain on the DC jack, which was no longer as good as it was originally. It's been fine ever since.
The chip cap in question was only rated at 16 volts according to the manual.I try to use caps that are rated at least twice the expected voltage on them. 16 volt caps on a 12 volt line seems borderline to me.
73, Zack W9SZ
The DC connector is a definite weak point. There is a very thin PCB track which can fracture. Also, frequently taking the plug out and back in again can loosen the solder joints from the socket to the PCB. I had this problem a while ago. Unless you are REALLY skilled with the iron (which I’m not!!) it’s a job for the professionals. Then when it’s been repaired, fit the rig with the type specific Power Poles. That way, you can disconnect the PPs as often as you like, as the PP connector stays permanently attached. Yaesu UK did mine for a very reasonable price. 73 Ivor G4RJA On 2 Sep 2022, at 08:10, Bryan Nehl <k0emt@...> wrote:
?
I'm going to go with the help desk first question: Did you check that menu setting 7 is set to the rear connector?
72 de Bryan, k0emt
On Thursday, September 1, 2022 at 02:32:36 PM EDT, Steve Rosman < stvrosman@...> wrote:
Seeking help from the brain trust, thanks. Rig not getting power thru rear connector, runs ok on battery. Have tried multiple plugs, cables, power sources, etc. Port is clear (no fragment of plug inside). Visual inspection under hood does not reveal any obvious (to me) defect. Appreciate suggestions, guidance, magic wands, etc ;-) Thanks all and best 73. :Steve KA2YRA
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Look At the Male Plug And see if the tiny "Plastic" tip is Possibly Missing and Now STUCK In The? Female Socket.
If so Its "Fun" Getting it OUT.
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Best Regards.
Steve AB2ET/4
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He already said it's not.
Zack W9SZ
Look At the Male Plug And see if the tiny "Plastic" tip is Possibly Missing and Now STUCK In The? Female Socket.
If so Its "Fun" Getting it OUT.
--
Best Regards.
Steve AB2ET/4
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I noticed on mine the other day, that the plug on the Yaesu wall wart doesn't seem to be mating properly with the power jack on the radio. A different plug that I have which is connected to a LiFePo4 battery works fine. Checking the wall wart it is putting out plenty of voltage. So apparently there can be some plug/jack mismatches in certain cases.?
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This DC connector is the glass jaw of the 817. The connector failed in my 20yr old 817 so I ripped the old connector out and soldered wires in it's place going to a JST connector thru the now open hole. I have had this exact same connector fail on several Yaesu charging cradles.
Good Luck!
73
-Mike
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Having had a similar failure on my own, I would suggest checking the internal SMD fuse on the radio - I killed mine, and had to replace the surface mount component to get the device back :-) Kindest regards,
Doug Jackson
ph: 0414 986878
Check out my awesome clocks at Follow my amateur radio adventures at
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On Mon, 5 Sept 2022 at 06:43, Mike - N5AQM < n5aqmdb@...> wrote: This DC connector is the glass jaw of the 817. The connector failed in my 20yr old 817 so I ripped the old connector out and soldered wires in it's place going to a JST connector thru the now open hole. I have had this exact same connector fail on several Yaesu charging cradles.
Good Luck!
73
-Mike
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Oh, yep, my misunderstanding. ?I hope OP will post with what they’ve found. I did get one of the WindCamp Anderson Power Pole adapters for my 818. I like the solid feel and design of it versus the 3D printed ones out there.
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On Sep 2, 2022, at 04:28, M0RON <eustace.andy@...> wrote:
?Op is talking about not getting DC power through the rear power input not power from the RF connectors.?
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Just last night I repaired my 817ND that had the same problem. Turned out to be an open PCB trace. Bridged the trace and it's operating fine now. An ohmmeter and magnifying glass are your friends in troubleshooting and repairing this one.
As luck would have it, I stumbled across this link AFTER troubleshooting and repairing my rig. heh.
Good luck and let us know how you make out with this.
73, Jeff WN1MB
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I had a strange occurrence with mine. There is a chip cap right near the connector on the pc board that blew up. It took out the trace from the connector. The chip cap was only rated at 16 volts, on the 13.8 volt line.
This doesn't look like enough leeway in voltage to me.
I repaired the pc board trace and put in a chip cap rated at 25 volts.
73, Zack W9SZ
The DC connector is a definite weak point. There is a very thin PCB track which can fracture. Also, frequently taking the plug out and back in again can loosen the solder joints from the socket to the PCB. I had this problem a while ago. Unless you are REALLY skilled with the iron (which I’m not!!) it’s a job for the professionals. Then when it’s been repaired, fit the rig with the type specific Power Poles. That way, you can disconnect the PPs as often as you like, as the PP connector stays permanently attached. Yaesu UK did mine for a very reasonable price. 73 Ivor G4RJA On 2 Sep 2022, at 08:10, Bryan Nehl <k0emt@...> wrote:
?
I'm going to go with the help desk first question: Did you check that menu setting 7 is set to the rear connector?
72 de Bryan, k0emt
On Thursday, September 1, 2022 at 02:32:36 PM EDT, Steve Rosman < stvrosman@...> wrote:
Seeking help from the brain trust, thanks. Rig not getting power thru rear connector, runs ok on battery. Have tried multiple plugs, cables, power sources, etc. Port is clear (no fragment of plug inside). Visual inspection under hood does not reveal any obvious (to me) defect. Appreciate suggestions, guidance, magic wands, etc ;-) Thanks all and best 73. :Steve KA2YRA
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This was exactly the trace I repaired this Tuesday... Looks like I am in a good company
Il giorno ven 21 ott 2022 alle ore 16:10 Jeff WN1MB < jwbauer@...> ha scritto: Just last night I repaired my 817ND that had the same problem. Turned out to be an open PCB trace. Bridged the trace and it's operating fine now. An ohmmeter and magnifying glass are your friends in troubleshooting and repairing this one.
As luck would have it, I stumbled across this link AFTER troubleshooting and repairing my rig. heh.
Good luck and let us know how you make out with this.
73, Jeff WN1MB
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M0RON
Doug Jackson
Jeff WN1MB