Panasonic TC801SDP sound problem - UK Vintage Radio Repair and Restoration Discussion Forum

JohnBHanson · 3rd Oct 2014, 1:39 pm

The problem is that the sound is not tuned in at the same point as the vision. It looks like the sound trap is miss-tuned or that it is set up for the wrong standard. This is a PAL/SECAM tv/monitor and I have had a quick look inside and cannot find the section that strips the sound from the vision. Does anyone have any infomation about this tv.

Thanks.

vidjoman · 3rd Oct 2014, 5:07 pm

Is it a UK model? Other European countries used 5.5 not 6.0 MHz as in the UK.

Maclee62 · 3rd Oct 2014, 7:44 pm

TC-801SDP is not a UK model, the UK version was TC-801G. It is very likely to have a 5.5MHz spacing, not the 6MHz of the 801G, that was required for UK operation.

Multi standard versions were not sold in the UK by the UK importer. They may have been available, but only as grey imports.

JohnBHanson · 3rd Oct 2014, 7:48 pm

Is it convertable or adjustable to 6Mhz? or would that be a difficult job?

nigelr2000 · 3rd Oct 2014, 10:03 pm

I used to just swop out the 3 legged filters for 6Mhz ones robbed out a dead UK set, I seem to remember there was 2 different types CDA and another, then with a little adjustment of the cores and it worked fine. I used to see quite a few Dutch & German sets in my shop as they seemed to like coming to live in the Cromer area for some reason

Maclee62 · 4th Oct 2014, 4:34 am

Check carefully around the set, but especially on the back as some non Uk models had a switch marked 5.5/6.0 to select the sound spacing. If you have such a switch, move it to the 6.0 position and it should then work.

This model was probably made for the middle East or Russian market.

It may also have more connections on the back that the UK version (TC801G) had, so if you managed to obtain an TC801G manual you may find it does not show all the terminals that exist on yours. Incidentally, the TC1100G is basically the same chassis if that assists you at all.

It dates from the late 80s/early 90s. You can pin the production date down from the serial number.

JohnBHanson · 14th Oct 2014, 10:58 am

Would anyone have a service manual for either a TC1100G or a TC801G or a TC801SDP they could email me - that would be helpful.

Thank you.

JohnBHanson · 4th Nov 2014, 10:54 pm

As nobody seams to have a service manual - would anyone have any advice on adding an RGB input?

3rd Oct 2014, 1:39 pm	#1
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 662	Panasonic TC801SDP sound problem The problem is that the sound is not tuned in at the same point as the vision. It looks like the sound trap is miss-tuned or that it is set up for the wrong standard. This is a PAL/SECAM tv/monitor and I have had a quick look inside and cannot find the section that strips the sound from the vision. Does anyone have any infomation about this tv. Thanks.

3rd Oct 2014, 5:07 pm	#2
vidjoman Dekatron Join Date: Jun 2013 Location: East Sussex, UK. Posts: 3,326	Re: Panasonic TC801SDP sound problem Is it a UK model? Other European countries used 5.5 not 6.0 MHz as in the UK.

3rd Oct 2014, 7:44 pm	#3
Maclee62 Retired Dormant Member Join Date: May 2012 Location: Kent, UK. Posts: 31	Re: Panasonic TC801SDP sound problem TC-801SDP is not a UK model, the UK version was TC-801G. It is very likely to have a 5.5MHz spacing, not the 6MHz of the 801G, that was required for UK operation. Multi standard versions were not sold in the UK by the UK importer. They may have been available, but only as grey imports.

3rd Oct 2014, 7:48 pm	#4
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 662	Re: Panasonic TC801SDP sound problem Is it convertable or adjustable to 6Mhz? or would that be a difficult job?

3rd Oct 2014, 10:03 pm	#5
nigelr2000 Heptode Join Date: Nov 2008 Location: North Walsham, Norfolk, UK. Posts: 900	Re: Panasonic TC801SDP sound problem I used to just swop out the 3 legged filters for 6Mhz ones robbed out a dead UK set, I seem to remember there was 2 different types CDA and another, then with a little adjustment of the cores and it worked fine. I used to see quite a few Dutch & German sets in my shop as they seemed to like coming to live in the Cromer area for some reason

4th Oct 2014, 4:34 am	#6
Maclee62 Retired Dormant Member Join Date: May 2012 Location: Kent, UK. Posts: 31	Re: Panasonic TC801SDP sound problem Check carefully around the set, but especially on the back as some non Uk models had a switch marked 5.5/6.0 to select the sound spacing. If you have such a switch, move it to the 6.0 position and it should then work. This model was probably made for the middle East or Russian market. It may also have more connections on the back that the UK version (TC801G) had, so if you managed to obtain an TC801G manual you may find it does not show all the terminals that exist on yours. Incidentally, the TC1100G is basically the same chassis if that assists you at all. It dates from the late 80s/early 90s. You can pin the production date down from the serial number. Last edited by Maclee62; 4th Oct 2014 at 4:47 am.

14th Oct 2014, 10:58 am	#7
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 662	Re: Panasonic TC801SDP sound problem Would anyone have a service manual for either a TC1100G or a TC801G or a TC801SDP they could email me - that would be helpful. Thank you.

4th Nov 2014, 10:54 pm	#8
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 662	Re: Panasonic TC801SDP sound problem As nobody seams to have a service manual - would anyone have any advice on adding an RGB input?