Jap Symphony Help Please.

tonyjtl1 · 14th May 2007, 18:27

Bought one of those new Japanese Symphony wirless/casette thingys,installed it with relavant band expander,iso to din/din to iso arial plugs,looks and sounds lovely,till I drive off!.Then I am treated to the sound going off/on/off/on,with the message PHONE MUTE.

Is the answer to disconnect the yellow mini iso?,or is that idea too childish.
Would appreciate any help on this one.
The car is a75 facelift tourer

Simon · 14th May 2007, 18:49

It may be that the K-BUS signal is being sent to the wrong pin on on the connector which is causing a speed-signal to be mis-represented as a phone-signal.

So in other words, yes - disconnect the yellow ISO plug (or whatever the K-BUS signal goes thru) and seee what happens.

tonyjtl1 · 14th May 2007, 19:53

Thanks simon. I'll try that,I have no idea what your talking about,K bus signals,and alll.but as long as I can recieve the Light programme and the home service,without interuption I will be a happy man.

Thank you for your time. regards.

Simon · 14th May 2007, 19:59

K-BUS is a signal sent through a wire to most of the cars systems. It's like a computer connection that allows data to be shared amoungst all the cars ECU's etc.

Part of the K-BUS signal is a road-speed readout which is used (for amoungst other things) speed-sensitive volume on your Symphony. If this signal is being sent to the wrong connector then the Symphony will think it means something else.

tonyjtl1 · 15th May 2007, 18:16

Thank you for that Simon,went out this afternoon and pulled the thing out of the dash,only to find the only wires connected to the mini iso plugs are two blue/lilac blue/brown,to the green plug,none to the yellow.So thanks for explaining the K.bus thing,is it just a case of snipping of the K.bus wire and how will I know whitch one it is? I find it starts it's anticts,as soon as I put it in gear(auto).thanks for your time.

Regards Tony Lewis.

Simon · 15th May 2007, 18:37

I wouldn't just snip the wire willy nilly. Best to make sure the mini ISO blocks are in the correct order in the back of the Symphony.

I'll do some research then post back here with my findings (unless someone beats me to it...)

Simon · 15th May 2007, 18:39

This thread http://www.the75andztclub.co.uk/foru...ead.php?t=3263 contains a lot of usefull info regarding the mini ISO plugs and their functions.

Mike · 15th May 2007, 18:49

I have a full list of the Symphony pin out's pm me an email address if you want them

hth

Mike

raykay · 15th May 2007, 19:20

I don't know if it is the same for the Japanese models, but with ours, the phone mute signal is on pin 1 of the grey ISO plug, Red/Green cable, when it is connected to earth, it switches off the speakers and the radio displays 'Phone Mute'. Nothing to do with the K-Bus.

Could be a stray earth connecting to pin 1 (if it is the same as ours.)

tonyjtl1 · 15th May 2007, 19:40

thanks Ray its going dark now,but I'll try that tomorrow afternoon.

regards tony

14th May 2007, 18:27	#1
tonyjtl1 Newbie 75 Saloon&75 Tourer Join Date: Nov 2006 Location: arundel west sussex Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	Jap Symphony Help Please. Bought one of those new Japanese Symphony wirless/casette thingys,installed it with relavant band expander,iso to din/din to iso arial plugs,looks and sounds lovely,till I drive off!.Then I am treated to the sound going off/on/off/on,with the message PHONE MUTE. Is the answer to disconnect the yellow mini iso?,or is that idea too childish. Would appreciate any help on this one. The car is a75 facelift tourer __________________ [SIGPIC][/SIGPIC]block paving next.

14th May 2007, 19:53	#3
tonyjtl1 Newbie 75 Saloon&75 Tourer Join Date: Nov 2006 Location: arundel west sussex Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	Thanks simon. I'll try that,I have no idea what your talking about,K bus signals,and alll.but as long as I can recieve the Light programme and the home service,without interuption I will be a happy man. Thank you for your time. regards. __________________ [SIGPIC][/SIGPIC]block paving next.

15th May 2007, 18:16	#5
tonyjtl1 Newbie 75 Saloon&75 Tourer Join Date: Nov 2006 Location: arundel west sussex Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	Thank you for that Simon,went out this afternoon and pulled the thing out of the dash,only to find the only wires connected to the mini iso plugs are two blue/lilac blue/brown,to the green plug,none to the yellow.So thanks for explaining the K.bus thing,is it just a case of snipping of the K.bus wire and how will I know whitch one it is? I find it starts it's anticts,as soon as I put it in gear(auto).thanks for your time. Regards Tony Lewis. __________________ [SIGPIC][/SIGPIC]block paving next.

15th May 2007, 18:49	#8
Mike This is my second home Rover 75 V8 Join Date: Oct 2006 Posts: 3,448 Thanks: 0 Thanked 206 Times in 32 Posts	I have a full list of the Symphony pin out's pm me an email address if you want them hth Mike __________________ Mike [SIGPIC][/SIGPIC]

15th May 2007, 19:40	#10
tonyjtl1 Newbie 75 Saloon&75 Tourer Join Date: Nov 2006 Location: arundel west sussex Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	thanks Ray its going dark now,but I'll try that tomorrow afternoon. regards tony __________________ [SIGPIC][/SIGPIC]block paving next.

14th May 2007, 18:49	#2
Simon Banned - Join Date: Nov 2006 Location: - Posts: 10,318 Thanks: 0 Thanked 4 Times in 3 Posts	It may be that the K-BUS signal is being sent to the wrong pin on on the connector which is causing a speed-signal to be mis-represented as a phone-signal. So in other words, yes - disconnect the yellow ISO plug (or whatever the K-BUS signal goes thru) and seee what happens.

14th May 2007, 19:59	#4
Simon Banned - Join Date: Nov 2006 Location: - Posts: 10,318 Thanks: 0 Thanked 4 Times in 3 Posts	K-BUS is a signal sent through a wire to most of the cars systems. It's like a computer connection that allows data to be shared amoungst all the cars ECU's etc. Part of the K-BUS signal is a road-speed readout which is used (for amoungst other things) speed-sensitive volume on your Symphony. If this signal is being sent to the wrong connector then the Symphony will think it means something else.

15th May 2007, 18:37	#6
Simon Banned - Join Date: Nov 2006 Location: - Posts: 10,318 Thanks: 0 Thanked 4 Times in 3 Posts	I wouldn't just snip the wire willy nilly. Best to make sure the mini ISO blocks are in the correct order in the back of the Symphony. I'll do some research then post back here with my findings (unless someone beats me to it...)

15th May 2007, 18:39	#7
Simon Banned - Join Date: Nov 2006 Location: - Posts: 10,318 Thanks: 0 Thanked 4 Times in 3 Posts	This thread http://www.the75andztclub.co.uk/foru...ead.php?t=3263 contains a lot of usefull info regarding the mini ISO plugs and their functions.

15th May 2007, 19:20	#9
raykay I really should get out more....... Now Other Manufacturer Join Date: Nov 2006 Location: Co. Kerry Posts: 2,786 Thanks: 16 Thanked 310 Times in 283 Posts	I don't know if it is the same for the Japanese models, but with ours, the phone mute signal is on pin 1 of the grey ISO plug, Red/Green cable, when it is connected to earth, it switches off the speakers and the radio displays 'Phone Mute'. Nothing to do with the K-Bus. Could be a stray earth connecting to pin 1 (if it is the same as ours.)