Hi Line problem - help welcome!

Womble · 26th January 2010, 10:37

Hi All,

I'd be interested to know if anyone has had a similar problem to mine, and if so how you might have fixed it?

Basically, the fault I've got, which started out intermittently, gradually got worse, and now is constant, is that I have no sound at all (tv, satnav, radio, tape), and cannot select anything to do with music on the head unit, although I can still get TV and Satnav (both silent). Also, the little orange light by the on/off button no longer lights up.

Firstly, what I know it isn't! Thanks for a kindly fellow 260 owner letting me rip his car to bits, I've tried my head unit and my radio in his car, and they are both working fine, although I'm kicking myself for not trying the TV tuner, as even though that appears to be fine, what's the betting that will now prove to be the problem!

This only leaves me with two options I can think of - the wiring or the amp.

I had assumed that the problem was the radio unit, as I know they can be an issue, and all the symptoms sound like it. I therefore bought a second hand BM24 unit. When I plugged that in, I got sound for a few seconds (although still no orange light or controls at the head unit), which makes me think the wiring could be OK, so this would suggest the amp as the problem?

One issue here is that I can't try Mark's amp, as they are different from saloon to tourer, and I don't know anyone else near me well enough to ask them if they'd mind me taking out their satnav to get to their amp and then giving it a try!

Before I get a replacement amp (only £80 or so, thus not the end of the world if it proves to be working and I have to flog the spare on Ebay) does anyone have any ideas of anything else I can test?

richardwjackson · 26th January 2010, 10:46

Had a similar problem with my current car. Sat nav and tv came on but no orange light on the on/off button and no sound.

Was told by fellow members was probably the radio module which had got damp over time due to water ingress into the boot area.

Replaced damp Philips module with a Japanese Alpine radio module (thanks to a fellow member) and, hey presto, SOUND!!!! :lol:

Been fine ever since...

Womble · 26th January 2010, 10:53

That was what I'd expected, but sadly not in my case, as I know the radio modules (I now have two!) both work!

Greeners · 26th January 2010, 11:29

I'm pretty sure the connections on the amp are the same, it's the physical size that's different

Womble · 26th January 2010, 11:38

Quote:

Originally Posted by Greeners

I'm pretty sure the connections on the amp are the same, it's the physical size that's different

No, there are four different amps - tourers with/without satnav and saloons with/without satnav.

The reason there is a difference between the tourers and saloons, as I understand it, is because the saloons have two sub-woofer speakers driven by the amp, whereas the tourers just have one.

JohnDotCom · 26th January 2010, 11:47

The above only applies if the Harmon Kardon option is fitted,
otherwise the Radio has its own separate Tuner/amplifier in Boot/Rear of load area on Tourer.
Are you using a BM24 for Amp/Tuner or the HK Option?

Womble · 26th January 2010, 12:59

Quote:

Originally Posted by JohnDotCom

The above only applies if the Harmon Kardon option is fitted,
otherwise the Radio has its own separate Tuner/amplifier in Boot/Rear of load area on Tourer.
Are you using a BM24 for Amp/Tuner or the HK Option?

I've got the Hiline and the Harmon Kardon, so there's both a radio unit in the boot, and also an HK amp. The BM24 is a straight swap for the MGR tuner in the boot, both of which, as I understand it, then feed through the HK amp.

amableson · 26th January 2010, 14:33

Quote:

Originally Posted by Womble

No, there are four different amps - tourers with/without satnav and saloons with/without satnav.

The reason there is a difference between the tourers and saloons, as I understand it, is because the saloons have two sub-woofer speakers driven by the amp, whereas the tourers just have one.

I was under the impression that the saloon set up has two sub woofers fitted on the assembly where as the tourer has two voice coils in the one speaker.
So it uses the same amp?

Please feel free to correct me if i'm wrong.

Womble · 26th January 2010, 14:51

Quote:

Originally Posted by amableson

I was under the impression that the saloon set up has two sub woofers fitted on the assembly where as the tourer has two voice coils in the one speaker.
So it uses the same amp?

Please feel free to correct me if i'm wrong.

I wouldn't know at that level of detail. I just know there are 4 part numbers, and this was the reason I was given for why.

JohnDotCom · 26th January 2010, 15:30

Quote:

Originally Posted by amableson

I was under the impression that the saloon set up has two sub woofers fitted on the assembly where as the tourer has two voice coils in the one speaker.
So it uses the same amp?

Please feel free to correct me if i'm wrong.

Different Amplifiers for Saloon and Tourer I'm afraid.

26th January 2010, 10:37	#1
Womble Avid contributor ZT-T 260 Join Date: Nov 2006 Location: Epsom Posts: 140 Thanks: 0 Thanked 0 Times in 0 Posts	Hi Line problem - help welcome! Hi All, I'd be interested to know if anyone has had a similar problem to mine, and if so how you might have fixed it? Basically, the fault I've got, which started out intermittently, gradually got worse, and now is constant, is that I have no sound at all (tv, satnav, radio, tape), and cannot select anything to do with music on the head unit, although I can still get TV and Satnav (both silent). Also, the little orange light by the on/off button no longer lights up. Firstly, what I know it isn't! Thanks for a kindly fellow 260 owner letting me rip his car to bits, I've tried my head unit and my radio in his car, and they are both working fine, although I'm kicking myself for not trying the TV tuner, as even though that appears to be fine, what's the betting that will now prove to be the problem! This only leaves me with two options I can think of - the wiring or the amp. I had assumed that the problem was the radio unit, as I know they can be an issue, and all the symptoms sound like it. I therefore bought a second hand BM24 unit. When I plugged that in, I got sound for a few seconds (although still no orange light or controls at the head unit), which makes me think the wiring could be OK, so this would suggest the amp as the problem? One issue here is that I can't try Mark's amp, as they are different from saloon to tourer, and I don't know anyone else near me well enough to ask them if they'd mind me taking out their satnav to get to their amp and then giving it a try! Before I get a replacement amp (only £80 or so, thus not the end of the world if it proves to be working and I have to flog the spare on Ebay) does anyone have any ideas of anything else I can test? __________________ You polish yours if you want to... I'll be DRIVING mine! 'Kermit' - MG ZT-T 260 Mk1 - VIN 019

26th January 2010, 10:46	#2
richardwjackson Posted a thing or two Mercedes A-Class A180 CDI ECO Join Date: Sep 2009 Location: Crewe Posts: 1,292 Thanks: 0 Thanked 1 Time in 1 Post	Had a similar problem with my current car. Sat nav and tv came on but no orange light on the on/off button and no sound. Was told by fellow members was probably the radio module which had got damp over time due to water ingress into the boot area. Replaced damp Philips module with a Japanese Alpine radio module (thanks to a fellow member) and, hey presto, SOUND!!!! :lol: Been fine ever since... __________________ http://i1231.photobucket.com/albums/...psc44ada88.jpg[

26th January 2010, 10:53	#3
Womble Avid contributor ZT-T 260 Join Date: Nov 2006 Location: Epsom Posts: 140 Thanks: 0 Thanked 0 Times in 0 Posts	That was what I'd expected, but sadly not in my case, as I know the radio modules (I now have two!) both work! __________________ You polish yours if you want to... I'll be DRIVING mine! 'Kermit' - MG ZT-T 260 Mk1 - VIN 019

26th January 2010, 11:29	#4
Greeners Moderator MG-ZTT Join Date: Mar 2007 Location: Ware, Herts Posts: 19,798 Thanks: 161 Thanked 1,249 Times in 1,036 Posts	I'm pretty sure the connections on the amp are the same, it's the physical size that's different __________________ *David* Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics]

26th January 2010, 11:47	#6
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	The above only applies if the Harmon Kardon option is fitted, otherwise the Radio has its own separate Tuner/amplifier in Boot/Rear of load area on Tourer. Are you using a BM24 for Amp/Tuner or the HK Option? Last edited by JohnDotCom; 26th January 2010 at 13:45.. Reason: Corrected bad spelling. Oops.