1976 Sears Repair

dpeterson3 · 18-07-2012, 2:11 AM

I have a sears color TV from 1976 that died last week. I heard a nice pop, and my picture was blank. This TV had been used pretty much every day for the past 15 years, and I don't know before that. I do a lot of electronics, so I'm not scared to fix the thing. From what I know of picture tubes, they don't usually just go, and I don't think mine is dead. I don't get static noise on the speaker when I toggle it on, so my only thought is something went out in the power supply. I didn't see any dead caps, so any suggestions where to begin looking?

Thanks in advance.

stevelup · 18-07-2012, 8:42 AM

I know this doesn't help but most people turn TVs of that age into display cabinets or aquariums...

First thing you need to do is try and find a service manual or at least a schematic for it. If it was a popular unit at the time, someone somewhere will have scanned it and uploaded it to the internet.

I realise this is an obvious suggestion, but have you checked all the fuses?

mike7 · 18-07-2012, 10:02 AM

This is a UK/European Forum so the Sears brand would be unknown here. To repair a TV that is over 30 years old is not impossible if parts can be traced. If you were in the UK I could point you in the direction of specialist people who repair 'historic' models. It's usually a time consuming and expensive business. A TV will have gathered a lot of dust over the years. In my experience one fault in a TV this age leads to another and you may have come to the point where repairing it is an ongoing job. A 30 year old tube is certainly at the end of its life, if not dead!. I'd find a museum willing to take it on as an exhibit, or a tv/movies props company. Alternatively you could strip it out and try to fit a modern chassis into it the cabinet.

Sirez · 24-07-2012, 11:55 AM

I can understand you wanting to keep this set in working order but cannot for the life of me understand why you would use it every day instead of a more up to date tv.

Tight Git · 24-07-2012, 4:57 PM

As said, this is a UK forum, but any PSU fault should be possible to trace, given a volt meter and circuit diagram.

Good luck for across the pond!

18-07-2012, 2:11 AM	#1
dpeterson3 New Member Join Date: Nov 2010 Thanks: Gave 1, Got 0 Posts: 5	1976 Sears Repair Advertisement Want to Advertise? I have a sears color TV from 1976 that died last week. I heard a nice pop, and my picture was blank. This TV had been used pretty much every day for the past 15 years, and I don't know before that. I do a lot of electronics, so I'm not scared to fix the thing. From what I know of picture tubes, they don't usually just go, and I don't think mine is dead. I don't get static noise on the speaker when I toggle it on, so my only thought is something went out in the power supply. I didn't see any dead caps, so any suggestions where to begin looking? Thanks in advance.
	Quote

18-07-2012, 8:42 AM	#2
stevelup Veteran Member Join Date: Aug 2002 Location: Swindon Thanks: Gave 2, Got 615 Posts: 5,227	I know this doesn't help but most people turn TVs of that age into display cabinets or aquariums... First thing you need to do is try and find a service manual or at least a schematic for it. If it was a popular unit at the time, someone somewhere will have scanned it and uploaded it to the internet. I realise this is an obvious suggestion, but have you checked all the fuses?
	Quote

18-07-2012, 10:02 AM	#3
mike7 Prominent Member Join Date: Jan 2005 Location: Norwich Thanks: Gave 332, Got 266 Posts: 3,438	This is a UK/European Forum so the Sears brand would be unknown here. To repair a TV that is over 30 years old is not impossible if parts can be traced. If you were in the UK I could point you in the direction of specialist people who repair 'historic' models. It's usually a time consuming and expensive business. A TV will have gathered a lot of dust over the years. In my experience one fault in a TV this age leads to another and you may have come to the point where repairing it is an ongoing job. A 30 year old tube is certainly at the end of its life, if not dead!. I'd find a museum willing to take it on as an exhibit, or a tv/movies props company. Alternatively you could strip it out and try to fit a modern chassis into it the cabinet.
	Quote

24-07-2012, 11:55 AM	#4
Sirez Member Join Date: Sep 2006 Location: Birmingham Thanks: Gave 42, Got 43 Posts: 460	I can understand you wanting to keep this set in working order but cannot for the life of me understand why you would use it every day instead of a more up to date tv.
	Quote

24-07-2012, 4:57 PM	#5
Tight Git Veteran Member Join Date: Mar 2004 Thanks: Gave 453, Got 538 Posts: 5,890	As said, this is a UK forum, but any PSU fault should be possible to trace, given a volt meter and circuit diagram. Good luck for across the pond!
	Quote

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1976 Sears Repair