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I have a Midland Marine Radio 78-101 that does not power on. 12V is going into the unit but when I turn the on-button, nothing happens. There are no on-board fuses. Any idea what the problem might be?

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Posted on Jan 02, 2017


SOURCE: Reset button or fuse

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Posted on Jan 13, 2008

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SOURCE: unit wont turn on

.Hi jepenny

The board you are looking at is the standby cct and power switching PCB. It sounds like that is working, so you have probably lost power to the transformer primary or the transformer is open circuit. Check for blown fuses and replace with exact same type and rating.

Be sure to unplug at the wall before touching any internals!!

If you can find no blown fuses, the power transformer may have failed. Good luck, get back to me here is you need any more advice. Thanks for using "FixYa"


Posted on Feb 18, 2008

  • 1 Answer

SOURCE: wii fit board wont sync

Ok I feel a little silly, there is a sync button on the console (inside the flap by the power on button) and the board (inside the battery compartment on the underside of the board) as soon as I pressed them at the same time it worked. Goodluck everyone.

Posted on Feb 09, 2009

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SOURCE: how to attach 12V to car fuse box

if it is led it most likely is a low volt and very low amps. you can go behind the radio and find the switched wire using a test light when you turn on car the test light will light you want to use this wire and splice it in using the blue scissor type splicers no cutting or soldering required. This wire will be close to the black and red wire going into radio. Possibly a red wire as well if there are two red wires one might be switched and one always on for retaining clock or radio stations in memory.

Posted on Feb 21, 2009

  • 3 Answers

SOURCE: Clarion M5675 won't turn on

Take the stereo all the way out and hook the black wire to the negative terminal and the yellow and the red wire to the positive terminal on a charged car battey. If it still does not turn on you may have fuse in the back of the deck. If not it's probably fried.

Posted on Apr 19, 2009

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Any trick to power up radio? Radio has 12 V connected and will not turn on

There should not be a "trick" to getting the radio to work. Make sure that the power connection is actually sending 12v. Also verify that the ground is good, that can cause issues. If possible, connect another 12v device to the power and ground and see if that one works.
If so, there may be a fuse on the radio that is blown. There are often fuses inside the case, near the power supply. If you are comfortable doing it, open the radio and see if you can find a fuse and verify that it is good. If not, take it to a radio shop and have them check it.

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2 Answers

Nothin will work

If you've got 12v constant on the yellow, 12v switched on the red, and chassis ground to black, your fuses are good the radio is powered properly.

When you plug the harness into the back of the radio you should hear the CD transport cycle. That's telling you the radio's getting power. Hit the reset button (pin-hole switch on front panel) and hold the small square open/close button for 2-3 seconds.

If still nothing, the radio needs service. I'd send that model to Alpine in CA for repair.

Jan 26, 2008 | Alpine CDA-7998 CD Player

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