HELP for my son's Alpine Head-Unit - blackout mode

[#1bugsbunnyfan 10+ year member]

We just got my son a car (1994 Mercedes E420) which has an Alpine CDA-7840 head unit. The stereo is GREAT, however it seems to go into "blackout" mode and, without the manual, we're not sure how to get the screen out of it. I've tried looking for a manual online, but have not had any luck. Can anyone help? Would be greatly appreciated. Thanks!

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[bimma85 5,000+ posts]

http://www.alpine1.com they'll have the manual....doesnt have a button that says blackout?

 

[ngsm13 5,000+ posts]

On all my alpines, all you did was press and hold the display button (disp.)

NG

 

[#1bugsbunnyfan 10+ year member]

It has the words "blackout", but it's above the MUTE button...there must be another button (like a function key) to press with it, but I've tried all and can't figure it out....any further advice? and, thanks for the quick response, it's greaty appreciated.

 

[#1bugsbunnyfan 10+ year member]

http://www.alpine1.com they'll have the manual....doesnt have a button that says blackout?

It seems I have to be an authorized dealer to get help, or am I missing something?

Thanks for the quick response,

~Linda

 

[ngsm13 5,000+ posts]

It has the words "blackout", but it's above the MUTE button...there must be another button (like a function key) to press with it, but I've tried all and can't figure it out....any further advice? and, thanks for the quick response, it's greaty appreciated.

Did you try pressing and holding that button...like for 5-7seconds?

NG

 

[#1bugsbunnyfan 10+ year member]

Did you try pressing and holding that button...like for 5-7seconds?
NG

Yes, but it puts in MUTE mode....the word "blackout" is sandwiched between the SOURCE button and the MUTE button.

 

[kuijo 10+ year member]

just press and hold all the buttons on the face(not at the same time). one of them does it.

 

[#1bugsbunnyfan 10+ year member]

It seems I have to be an authorized dealer to get help, or am I missing something?Thanks for the quick response,

~Linda

Ah, I see where I click without login...looking now. Last time I tried that, the site wasn't functioning. Thanks.

 

[#1bugsbunnyfan 10+ year member]

just press and hold all the buttons on the face(not at the same time). one of them does it.

Actually, I just found the Owner's Manual on Alpine's site (which wasn't working the last time I visited). I'm searching now...AND I'LL LET EVERYONE KNOW.

 

[ngsm13 5,000+ posts]

I was searching for you, and would have had it by now...but Firefox shit itself loading that PDF. Don't know why either.

NG

 

[#1bugsbunnyfan 10+ year member]

I was searching for you, and would have had it by now...but Firefox shit itself loading that PDF. Don't know why either.
NG

Yeah, well, I got it and downloaded it and you know what it says? It says to PRESS THE BLACKOUT BUTTON....WHAT? THERE IS NO BLACKOUT BUTTON. What a riot.

 

[PhatTonyDeMarco 5,000+ posts]

Hold SOURCE + MUTE ?

Just throwing out ideas..

 

[bimma85 5,000+ posts]

the manual says to press and hold blackout for 2 seconds

I was searching for you, and would have had it by now...but Firefox shit itself loading that PDF. Don't know why either.
NG

worked for me

To original poster...go to alpine1.com then go to support....when it bring you to that screen it will give you the option to "continue without login"....click that go the manuals the acrhived cd players and then to your model //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I would just post a direct link but it wont let me //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[PhatTonyDeMarco 5,000+ posts]

the manual says to press and hold blackout for 2 seconds

Which he says is labled between Mute and Source... So hold down either one and see what happens.

Is this a used unit?