Disable AV switching on Sony KDL-32W4000

Geoff_W · 30-11-2008, 12:27

Does anyone know how to disable the automatic AV switching on the scart sockets (either AV1 or AV2) on this set?

I have a Topfield 5800 PVR plugged into my new telly via AV1 and everytime it comes out of standby to make a recording I get switched to the AV1 input.

I know there is a firmware patch (Ds) to supposedly stop this, but it doesn't work for me. Is my only option to cut Pin 19 (?) or is there a better solution?

Geoff

Pemblechook · 30-11-2008, 13:17

Cut the wire to SCART pin 8 (status... DC control signal). This USED to work but that wire has other fuctions these days???

Best to cover the end of the wire with tape.

http://www.leadsdirect.co.uk/technical/scartwiring.html

Mark the lead as a modified lead.

bobcar · 30-11-2008, 18:20

Quote:

Originally Posted by Geoff_W

Does anyone know how to disable the automatic AV switching on the scart sockets (either AV1 or AV2) on this set?

I have a Topfield 5800 PVR plugged into my new telly via AV1 and everytime it comes out of standby to make a recording I get switched to the AV1 input.

I know there is a firmware patch (Ds) to supposedly stop this, but it doesn't work for me. Is my only option to cut Pin 19 (?) or is there a better solution?

Geoff

The fault is clearly with the PVR not the TV but of course that doesn't help you so if you can't turn off SCART control on the PVR either then cutting the SCART pin would seem the only option.

Orbitalzone · 30-11-2008, 19:11

Well you can either manually re-change the channel you want to watch or cut pin 8 as mentioned. Note this will probably also stop the widescreen switching signal from working so the TV won't change aspect ratios for widescreen programmes for that device.

My Panasonic DVD recorder does the exact same thing on my Sony 32W4000 and I simple change channelon the TV once the DVD has tried to override the TV. It's a poor design and I was utterly surprised my Panasonic did this as their previous video recorders/dvd players didn't do this.

Of course they could also have provided the 'TV/AV' button on the device in question!

Nigel Goodwin · 30-11-2008, 21:37

No help, but my HUmax 8000 does exactly the same thing

Geoff_W · 01-12-2008, 11:21

Thanks for all your comments.

I'll see if I can get used to it, otherwise I'll cut Pin 8 on one of my scart leads.

Geoff

Neil Johnson · 01-12-2008, 14:20

I don't know the device in question but maybe you could try another scart on the PVR. My PVR sends the switching signal via the 'TV' scart but not the 'VCR' scart .

bobcar · 01-12-2008, 14:22

Quote:

Originally Posted by Neil Johnson

I don't know the device in question but maybe you could try another scart on the PVR. My PVR sends the switching signal via the 'TV' scart but not the 'VCR' scart .

That solves the switching problem but does mean the picture will be of much lower quality.

30-11-2008, 12:27	#1
Geoff_W Forum Member Join Date: Jun 2004 Location: Nottingham Posts: 372	Disable AV switching on Sony KDL-32W4000 Does anyone know how to disable the automatic AV switching on the scart sockets (either AV1 or AV2) on this set? I have a Topfield 5800 PVR plugged into my new telly via AV1 and everytime it comes out of standby to make a recording I get switched to the AV1 input. I know there is a firmware patch (Ds) to supposedly stop this, but it doesn't work for me. Is my only option to cut Pin 19 (?) or is there a better solution? Geoff

30-11-2008, 13:17	#2
Pemblechook Forum Member Join Date: Dec 2007 Location: North Wales..Near Chester, UK Posts: 2,028	Cut the wire to SCART pin 8 (status... DC control signal). This USED to work but that wire has other fuctions these days??? Best to cover the end of the wire with tape. http://www.leadsdirect.co.uk/technical/scartwiring.html Mark the lead as a modified lead.

30-11-2008, 18:20	#3
bobcar Forum Member Join Date: Sep 2004 Posts: 14,718	Quote: Originally Posted by Geoff_W Does anyone know how to disable the automatic AV switching on the scart sockets (either AV1 or AV2) on this set? I have a Topfield 5800 PVR plugged into my new telly via AV1 and everytime it comes out of standby to make a recording I get switched to the AV1 input. I know there is a firmware patch (Ds) to supposedly stop this, but it doesn't work for me. Is my only option to cut Pin 19 (?) or is there a better solution? Geoff The fault is clearly with the PVR not the TV but of course that doesn't help you so if you can't turn off SCART control on the PVR either then cutting the SCART pin would seem the only option.

30-11-2008, 19:11	#4
Orbitalzone Forum Member Join Date: Oct 2000 Location: Sussex Posts: 12,173	Well you can either manually re-change the channel you want to watch or cut pin 8 as mentioned. Note this will probably also stop the widescreen switching signal from working so the TV won't change aspect ratios for widescreen programmes for that device. My Panasonic DVD recorder does the exact same thing on my Sony 32W4000 and I simple change channelon the TV once the DVD has tried to override the TV. It's a poor design and I was utterly surprised my Panasonic did this as their previous video recorders/dvd players didn't do this. Of course they could also have provided the 'TV/AV' button on the device in question!

30-11-2008, 21:37	#5
Nigel Goodwin Forum Member Join Date: Apr 2006 Location: North Derbyshire Posts: 41,789	No help, but my HUmax 8000 does exactly the same thing

01-12-2008, 11:21	#6
Geoff_W Forum Member Join Date: Jun 2004 Location: Nottingham Posts: 372	Thanks for all your comments. I'll see if I can get used to it, otherwise I'll cut Pin 8 on one of my scart leads. Geoff

01-12-2008, 14:20	#7
Neil Johnson Forum Member Join Date: Feb 2003 Posts: 92	I don't know the device in question but maybe you could try another scart on the PVR. My PVR sends the switching signal via the 'TV' scart but not the 'VCR' scart .

01-12-2008, 14:22	#8
bobcar Forum Member Join Date: Sep 2004 Posts: 14,718	Quote: Originally Posted by Neil Johnson I don't know the device in question but maybe you could try another scart on the PVR. My PVR sends the switching signal via the 'TV' scart but not the 'VCR' scart . That solves the switching problem but does mean the picture will be of much lower quality.

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Disable AV switching on Sony KDL-32W4000