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Old 08-02-2020, 01:17 AM   #1
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Brand: Thor Motor Coach
State: Arizona
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THOR #19761
2019 Quantum KW29 radio

Picked up this unit recently and have a radio, Nav screen, etc. problem. When the lights are on the display goes time and then lightens back up continuously. Works fine when the lights are off.

Any thoughts?
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Old 08-02-2020, 01:38 AM   #2
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Model: 2018 24.1 AXISSIXxSIX
State: Arizona
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Originally Posted by Bobbyg View Post
Picked up this unit recently and have a radio, Nav screen, etc. problem. When the lights are on the display goes time and then lightens back up continuously. Works fine when the lights are off.

Any thoughts?
Maybe your dash dimmer.
Check its position, and see what the radio does.
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Old 08-02-2020, 03:01 AM   #3
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Dimmer works fine when lights are off. Has no impact when lights are on. Wierd
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Old 08-02-2020, 05:56 AM   #4
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New coach and radio system. I will look for a dim screen adjustment and post if I find one and it helps.
Thanks
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Old 08-02-2020, 05:53 PM   #5
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Brand: Thor Motor Coach
Model: Quantum PD 31
State: Virginia
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THOR #7506
Flashing Radio

Quote:
Originally Posted by Bobbyg View Post
Picked up this unit recently and have a radio, Nav screen, etc. problem. When the lights are on the display goes time and then lightens back up continuously. Works fine when the lights are off.

Any thoughts?
Mine does the same thing, Thor changed radio unit 3 times...no luck. You have to turn the dash dimmer all the way up like your turning on the dome light...its the only thing that worked for me....hope that helps.
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Old 08-02-2020, 09:30 PM   #6
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I did find that worked. Seriously lame that there isn’t a fix for this. Thanks for all the input guys.
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Old 08-02-2020, 09:55 PM   #7
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Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
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THOR #13932
I'm pretty sure changing the aux power feed line(someone said it's small and yellow) from the dimmer circuit to regular power will fix this for you.
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Below is a link to most of my modifications either accomplished or pending.
https://www.thorforums.com/forums/f2...n-18996-3.html

Click on my pictures then click the pop-up for a full screen zoomable picture.
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Old 08-03-2020, 03:44 AM   #8
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Brand: Thor Motor Coach
State: Arizona
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THOR #19761
Thanks Duckface. Iíll give that a try.
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