Symphony screeching - what to fix/replace?

ChrisH · 26th August 2013, 20:28

A fault which has been very occasional over the last 3 years has happened twice today and might be settling in for good. Whatever is playing, whether radio/cd, starts being interrupted by clicks and buzzes, then 5-10 seconds later settles into a loud screech, with volume control having no effect. It's mainly in the passenger door speaker, but rear seat passengers say it's in their ear as well. My guess is that a component is failing in the power amplifiers, and the front end radio/cassette/cd is all ok.

It's a while since I have been on here ('Thanks' is a new feature, right?), because after this forum helped sort the initial problems, I've had 3 years trouble-free motoring.

But the question is: something needs fixing or replacing, but what would it be? Does the Symphony have it all in the one head unit, or is there a separate amplifier box somewhere?

How available are new units from Rimmer or used units off eBay, and what should I expect to pay? (I have the type with buttons for lo-line sat-nav at top right corner). Any other suggestions?

Duotone · 26th August 2013, 20:45

The Symphony is a all in one head unit, no external amplifier.

You could buy a replacement Symphony without the low line sat nav panel. It can be changed over to a replacement headunit as its only held in with four screws.

Your fault is most likely the headunit, but best to remove the unit and check the connections.

Why not post in the "Items Wanted" forum for a Symphony.

Dave T

ChrisH · 26th August 2013, 21:09

Yes I thought as much. Rimmer seem to have them in stock, at a price (ouch!) but there is at least one unit currently on eBay, although it doesn't have the satnav buttons. Which of course brings up the next question...

Is the satnav panel built in, or can the blanking panel be taken out and the switch panel (from the old unit) clicked into place?

Duotone · 26th August 2013, 21:14

Quote:

Originally Posted by ChrisH

Yes I thought as much. Rimmer seem to have them in stock, at a price (ouch!) but there is at least one unit currently on eBay, although it doesn't have the satnav buttons. Which of course brings up the next question...

Is the satnav panel built in, or can the blanking panel be taken out and the switch panel (from the old unit) clicked into place?

As I say the sat nav panel is held in with four small screws, easily removable.

Dave T

26th August 2013, 20:28	#1
ChrisH Regular poster Rover 75 facelift Saloon CDTi auto ConnSE Silver Join Date: Jan 2010 Location: Winchester Posts: 77 Thanks: 2 Thanked 2 Times in 1 Post	Symphony screeching - what to fix/replace? A fault which has been very occasional over the last 3 years has happened twice today and might be settling in for good. Whatever is playing, whether radio/cd, starts being interrupted by clicks and buzzes, then 5-10 seconds later settles into a loud screech, with volume control having no effect. It's mainly in the passenger door speaker, but rear seat passengers say it's in their ear as well. My guess is that a component is failing in the power amplifiers, and the front end radio/cassette/cd is all ok. It's a while since I have been on here ('Thanks' is a new feature, right?), because after this forum helped sort the initial problems, I've had 3 years trouble-free motoring. But the question is: something needs fixing or replacing, but what would it be? Does the Symphony have it all in the one head unit, or is there a separate amplifier box somewhere? How available are new units from Rimmer or used units off eBay, and what should I expect to pay? (I have the type with buttons for lo-line sat-nav at top right corner). Any other suggestions? Last edited by ChrisH; 26th August 2013 at 20:33.. Reason: Clarify

26th August 2013, 20:45	#2
Duotone This is my second home 75 Join Date: Nov 2006 Location: Leeds Posts: 8,432 Thanks: 176 Thanked 907 Times in 716 Posts	The Symphony is a all in one head unit, no external amplifier. You could buy a replacement Symphony without the low line sat nav panel. It can be changed over to a replacement headunit as its only held in with four screws. Your fault is most likely the headunit, but best to remove the unit and check the connections. Why not post in the "Items Wanted" forum for a Symphony. Dave T Last edited by Duotone; 26th August 2013 at 20:47..

26th August 2013, 21:09	#3
ChrisH Regular poster Rover 75 facelift Saloon CDTi auto ConnSE Silver Join Date: Jan 2010 Location: Winchester Posts: 77 Thanks: 2 Thanked 2 Times in 1 Post	Yes I thought as much. Rimmer seem to have them in stock, at a price (ouch!) but there is at least one unit currently on eBay, although it doesn't have the satnav buttons. Which of course brings up the next question... Is the satnav panel built in, or can the blanking panel be taken out and the switch panel (from the old unit) clicked into place?