I just bought a 1989 560SEL and it came with the Premium 10 speaker sould system and a Becker radio.

I see that the front/rear level control is on the center console - how do I adjust the Left/Right balance? The becker has no English labels controls - all icons. I have no owners manual and can't figure out how to really iuse this radio. Plus, the LCD display has lost some pixels so it is hard to read.

-g

If your car has the 10 speaker sound system, this radio should have the extra little "box" attached to the rear. This is an added amplifier for the "special" system.

If you're experiencing balance problems, it could be just a balance adjustment, but its probably amplifier related. If the radio has lost some pixels too, it might be on the way out. The best resource for answers on this radio is at Becker of North America, 1-800-423-3537. You can find info on the owner's manual at thier site:
BE780 Manual

It shows how to adjust L/R balance.

Hope this helps.
Ray
www.perfectmarketaudio.com

See that lil Star on the headunit on the right side? Push that once and the display will go blank... then push the tone buttons (Bass/Treble) to go left or right.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Thanks HitMan. I finally got the manual and figured that out, only to discover with dismay that the right side isn't working

Don 't know yet if it is the amp or the radio that is defective, am having a new HU installed tomorrow.

-gil

Ah well, I tried.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

i looked on there site and couldn't find a manual for mine.. or any... i own a 1987 mercedes benz 300e with a grand prix head unit

What questions do you have on the unit?

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

i want to find out everything about it... is it possible to fade from left and right as well as front to back

__________________
Car which i own - 1987 Mercedes Benz 300e shown here http://www.cardomain.com/memberpage/790052

I believe the 780 *is* the Grand Prix - that's what I have in my 89 560SEL.

The panning is on the Becker, the fader is a rocker panel on the copnsole.

This link still works:

http://www.beckerautosound.com/om780.pdf

__________________
GG NJ USA
1983 300SD (Sold at 198K)
1989 560SEL (205k) - slowly restoring
2009 Toyota Camry Hybrid (6k) - daily driver
1995 Colt Vista AWD (145k) - fun car! spare
1991 Buick Riviera 3.8l (85k) - fur die Kinder
RIP: 1965 LeMans/GTO Convertable -my first
RIP: 1968 GTO 400 HO w/ 400HP - ballsy!
(blew the motor racing a '69 GTX - bummer)

The Becker in the '87 300E doesn't have L/R balance control, just the F/R fader on the center console.

I see. I guess there are several models of the Grand Prix. I stand corrected.

-g

Have you tried pushing that "Star" as I outlined then adjusting via the bass and treble controls as outlined? I seriously doubt MB would let Becker have a radio without key tone adjustments such as that...

Try it.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

i did.. didn't work

__________________
Car which i own - 1987 Mercedes Benz 300e shown here http://www.cardomain.com/memberpage/790052

Well, the Becker wasn't the problem - it turned out to be that the right amp was fried.

I took the excellent advice of other posters here and put in a new 4-channel head unit (Sony CDX-F5705X) and by-passed the amps, using the stock MB speakers.

WOW!! What a difference. The sound is huge, full, rich - all the superlatives apply. I might spend the whole day in the car just listening to music. I had XM installed and it is great to hear radio without hiss, static or reception problems.

Next I want to replace the fader rocker switch with a multi-door lock switch so I don't have to use the key to look the doors.

Thanks to SCLJA La Jolla Audio, BigBenzWV, Scott98, RickG and Edge for all your informative posts. This forum has been invaluable in my quest to bring my 560 up to current standards.

-gil, grateful in New Jersey

__________________
GG NJ USA
1983 300SD (Sold at 198K)
1989 560SEL (205k) - slowly restoring
2009 Toyota Camry Hybrid (6k) - daily driver
1995 Colt Vista AWD (145k) - fun car! spare
1991 Buick Riviera 3.8l (85k) - fur die Kinder
RIP: 1965 LeMans/GTO Convertable -my first
RIP: 1968 GTO 400 HO w/ 400HP - ballsy!
(blew the motor racing a '69 GTX - bummer)