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No Power Up; TM-742A

Powering on this radio is very intermittent

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Tm 281a cannot accept programed data to memory


Are you getting any errors when you turn it on?

Usually if you are having an issue like that you will get an error. I have a old Radio Shack HTX 404 that the battery that keeps the memory "alive" is shot, so if I turn it off for more than an hour it loses everything. But when I power it on....it throws an error at me before I do the reset.

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Reset kenwood tm-v71a


There are more steps than just powering the radio on while pressing the function key. Please review the steps listed on this page: http://www.manualslib.com/manual/86675/Kenwood-Tm-V71a.html?page=95

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Monitor intermittent power problem and horizontal green flickering lines


separate wiring. touching wires creates cross-talk of signals.

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No power to radio in my Ford pick up diesel 06 fuses seam fine


It can be faulty or shorted fuse,first test the fuse controlling radio:----
Click the link below:----

Radio Controlling Fuse Location? http://howtobyme.blogspot.in/2012/05/2003-lincoln-aviator-radio-controlling.html

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Ford radio not powering ON? http://technoanswers.blogspot.com/2012/01/2006-ford-expedition-radio-not-powering.html

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Keep updated for more help.
Thanks.

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Pc not starting from pressing power on. Green LED for SB_PWR is on and when power switch pressed, fan & cool fan flicker momentarily but nothing happens. They do not spin. No LED light appears on front...


> PC had been suddenly powering off several times intermittently for a few days leading up to this state. Does this mean the PSU or Motherboard is at fault?

Yes, either CPU or PSU or motherboard are the likeliest culprits.

It's easier to try a different PSU than to try a different CPU or motherboard.

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1 Answer

Hi, my Nakamichi TM1 clock radio (22 years old) works perfectly except that it turns on intermittently. Can someone suggest a repair site or do it yourself repair instructions? Or a 2 piece replacement. ...


I have an old Nak TM-1 with the same problem....I have isolated ot to the MPC cable connecting the two units; specifically, just outside of the back of the main box. Seems like an intermittent 'short,' even though there is no actual motion of this cable over the years. It mpc's-into the remote unit, but is hard-wired to the base unit. Anyone know if I can order/locate a replacement cable?
--wesmd

Aug 22, 2010 | Audio Players & Recorders

1 Answer

On a 2006 basic cruiser i pushed the radio power button and the radio did not turn on. I shut the car off and tried again and it worked. Whats up with that? I was thinking of buying this car.


I was having the same problem and believe it or not, there happened to be a lot of corrosion and buil-up on the + side of the battery. I cleaned the post off with a good battery cleaner and put a good battery protectant on it. Since then, I don't have any problems with my radio not powering on at times. This is only one solution. You may have an intermittent connection somewhere in the electronics power jack for the radio. Mine was cased by a slight ocassional voltage drop.

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1 Answer

I have a Lowrance HDS-7 and it seems that when I power the unit down it powers itself up after a few minutes. Any insight?


Make sure it is completely powering down and you are not just dimming the brightness.
Are you powering off by holding down the power button until shutdown, or are you choosing power off from the popup menu and pressing ENT. Go with pressing ENT on the power off option. If you are completly powering it down for sure, there is probably a malfunction and you'll need to get it taken care of.

Unplug the power cable, and then plug it back in...does the HDS-7 turn on by itself now? If yes, there is a probably short in the keypad, likely due to water intrusion. You'll need to contact Lowrance support at 800-324-1356 or you can email them by going to http://www.lowrance.com/en/Support/Product-Support/Contact/ to get it taken care of.
Give them your serial number and name and address and phone number in the email to hopefully speed up the process.

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