Home |
Search |
Today's Posts |
#6
|
|||
|
|||
Dead Yaesu ft-890 Help!
Steve, ask around about the local ham radio club... There will be folks
in the club who will be happy to give you a hand trouble shooting your radio... As you drive around keep an eye open for the tell tale beam on a tower where a ham lives... Just ask folks you know or meet if they know any ham radio operators... Ask the guy next to you at the donut shop... Walk into the Radio Shack store and ask... If you are in mid Michigan give me a buzz on here and I will make arrangments for someone to help you... The CB shop at the local truck stop may be able to offer advice... The electronics professor at the local unversity or college... Ask around the high school and there is likely to be someone who knows someone... There is help if you just work at finding it... The radio is unlikely to be scrap... good luck - denny / k8do Steve wrote: Power supply OK. Even tried a brand new car battery to make sure. No lights or anything comes on. I have enough nerve to take the covers off and poke around a bit as I have nothing to lose at this point. Am retired and divorced once and buying this radio was chore, so if this is scrapped there will be no replacement. It has the auto tuner built in, what would be a fair price to ask for it for parts? Thanks for help. wrote in message oups.com... Steve, I asuume by "won't power up" you mean completely dead - no lights meters etc. The FT-890 uses an external power supply. Are you using the Yaesu FP-800 Power Supply or another supply? The manual warns users about reversing the power input leads!! Try the following: 1. Check the power supply leads to see if you have 13.8 volts. You will need a digital volt meter but these are pretty cheap at Radio Shack or your local hardware store. Disconnect the supply from the receiver and record the voltage. 2. Even if you have 13.8 volts the supply may not be able to provide enough current if it is defective. Check it with an automobile light bulb. This will show if there is enough current to power the receiver. Record the voltage with the light on - still around 13.8V?? 3. Reconnect the power supply and measure the voltage as you turn the power on and off. Any change? If everything is OK so far the power supply is OK 4. If your meter has an amp scale put the meter to the amps range (2 amps or more). Disconnect the red lead only (leave black attached) and put the meter in series. (one probe to the red lead and one to the + output of power suply). Measure the current with radio power switch on. Any current flowing?? If you get nothing at all you may have a loose power connection internally in the radio, a defective power switch or unfortunately an internal power circuit problem. Are you confident enough to open the unit and poke around with your meter?? Good luck - Roger Steve wrote: Went to fire up the Yaesu Ft-890 and it won't power up. I have power to the radio but pushing the power button does nothing. Used it a few days ago and everything was fine. There was no storm here so it didn't get zapped. Is there some kind of fuse inside this radio? I have limited electronic knowledge, so is there something I can check that may be a common failure to this rig that I might be able to do? Bought it on ebay last year and its been flawless, but to me its not worth a few hundred to ship it out to be fixed. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
eBay Yaesu FR-101 - Dead bands - need help | Boatanchors | |||
Announcing the 'new' Yaesu FRG-7700 Receiver Users eGroup on YAHOO ! | Shortwave | |||
WANTED: Yaesu G-5500 Rotor System (Dead or Alive) | Swap | |||
FS: Yaesu FT-897 SERVICE MANUAL | Swap | |||
FS: Icom, Yaesu Service Manuals Etc... | Swap |