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STC T212DA circuit diagram/service manual needed
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Return to top of page · Post #: 1 · Written at 11:41:51 AM on 31 December 2019.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
Hi - looking for a service manual or even a circuit diagram for this set, so I can the restoration of it. Happy to pay for it. John

Return to top of page · Post #: 2 · Written at 9:24:36 PM on 31 December 2019.
	MonochromeTV Location: Melbourne, VIC Member since 20 September 2011 Member #: 1009 Postcount: 1182
There is a schematic at Radiomuseum. https://www.radiomuseum.org/r/stcaus_t212da_t212.html However a TV like yours warrants the 39 page service manual. I'll scan the document and send a pdf copy here gratis. Might take a few days though.

Return to top of page · Post #: 3 · Written at 11:02:19 AM on 1 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
Wow - thank you MonochromeTV. Much appreciated.

Return to top of page · Post #: 4 · Written at 3:14:24 PM on 6 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
How are you going with this?

Return to top of page · Post #: 5 · Written at 6:41:14 PM on 7 January 2020.
	MonochromeTV Location: Melbourne, VIC Member since 20 September 2011 Member #: 1009 Postcount: 1182
Sorry John, I am nibbling away at it , but most my time at the moment is taken up by work. I have a few days off later in the week and you should have it by the weekend.

Return to top of page · Post #: 6 · Written at 5:42:49 AM on 8 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
All OK, many thanks again.

Return to top of page · Post #: 7 · Written at 2:55:02 PM on 15 January 2020.
	MonochromeTV Location: Melbourne, VIC Member since 20 September 2011 Member #: 1009 Postcount: 1182
Sorry about the delay. STC T172 T212 Service Manual STC T172 T212 Circuit Diagram

Return to top of page · Post #: 8 · Written at 3:19:19 PM on 15 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
Where did you send it to?

Return to top of page · Post #: 9 · Written at 8:21:35 PM on 15 January 2020.
	Brad Administrator Location: Naremburn, NSW Member since 15 November 2005 Member #: 1 Postcount: 7301
See the links in Post 7, John. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ A valve a day keeps the transistor away...

Return to top of page · Post #: 10 · Written at 8:25:42 AM on 16 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
Awesome!!! Thanks so much!!! This will be invaluable!

Return to top of page · Post #: 11 · Written at 11:34:28 AM on 19 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
Success! With the help of the manual, the television now works. It needs some height/linearity adjustment, but otherwise looking good. It's actually a BGE branded TV, but made by STC.

Return to top of page · Post #: 12 · Written at 10:51:48 PM on 19 January 2020.
	Ian Robertson Location: Belrose, NSW Member since 31 December 2015 Member #: 1844 Postcount: 2371
They were a VERY good TV in their day. Many stayed in service until colour arrived in 1974. The following 110 degree chassis was very much a cost reduction exercise and a very disappointing performer by comparison. I recall having to re-install one of these chassis after a workshop overhaul. The client had been left a loan set, a battered Pope Motorola metal case 14" portable. On re-installation, the STC picture faded and fluttered badly whenever a large vehicle on the road above passed through the signal path. Reason? Only two stages of vision IF and simple AGC with a long time constant. The older loan set outperformed the STC in an embarrassing way. How to explain to the client that there was nothing we could do about it? I think I ended up booking it in for an antenna call. Consider yourself lucky you don't have one of these! Although, running from a modulator, you'd only have to put up with the floating, AC coupled black level.

Return to top of page · Post #: 13 · Written at 3:55:56 PM on 20 January 2020.
	Brad Administrator Location: Naremburn, NSW Member since 15 November 2005 Member #: 1 Postcount: 7301
Photos uploaded to Post 11. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ A valve a day keeps the transistor away...

Return to top of page · Post #: 14 · Written at 10:36:04 AM on 29 January 2020.
	Irext Location: Werribee South, VIC Member since 30 September 2016 Member #: 1981 Postcount: 470
Very nice and a CRT with good emission to boot. What was the paper cap replacement count?

Return to top of page · Post #: 15 · Written at 7:03:11 PM on 31 January 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 103
38 paper, and a number of electrolytics.

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