Need help with a Proton 619 TV problem. Ticking clock sound...

[Explorer]

I’ve got a beautiful old Proton 619 TV. A gorgeous piece of ‘furniture,’ that has worked fine for many years—up until recently. It’s hooked up to a TV antenna. I get free TV and a great picture on it still.

Lately, when I turn it on, the picture and audio are still fine, except for what sounds like a loudly ticking clock inside. There are 4 buttons across the top of the control panel: TV, Cable (which is connected to my antenna), VCR, and Disc (which is connected to a DVD player). When I turn it on, it automatically always boots up, so to speak, on the “TV” setting. I have to hit the button for “Cable” in order to watch network TV via the antenna. On those first 2 settings, I hear the ticking clock sound. But not when I switch over to my DVD player, via the “Disk” button. If I turn the TV on and off 2 or 3 times, the sound will go away.

I ordered a service manual for it and I have a PDF with 2 very large schematic diagrams. (I can’t remember: Is it possible to upload a PDF file to this site? If not, I can put it up on my mediafire page.)

There is a relay indicated on one of the schematics, labeled: JC2A-DC12V-TC. A relay is the only thing that I can think of that might make a mechanical sound like a ticking clock.

Would anyone on this site have the expertise to tell me if perhaps there is something indeed likely to be wrong with the relay? OR, with some component that controls the relay? OR, whether it is likely to be some other issue altogether?

I’m unlikely to try to open up this TV until some time this winter. But, I wanted to try to gather some information, as well as try to figure out if it’s something I might be capable of tackling myself.

Thanks!

 

[73's de Edd]

First thing when it’s ticking good for you. Run the volume down to minimum to see if it is coming thru the audio and speaker?

 

[kellys_eye]

Could be as simple as dust build-up on some high voltage areas where there is 'flash-over' - there are usually some spark-gap type areas on the tube base or in the HV section.

Give is a blow and suck (giggidy).

 

[Explorer]

First thing when it’s ticking good for you. Run the volume down to minimum to see if it is coming thru the audio and speaker?

I just turned it on and did not hear the ticking sound. So, I will report back on that when I am able to. Thanks.

 

[Explorer]

Could be as simple as dust build-up on some high voltage areas where there is 'flash-over' - there are usually some spark-gap type areas on the tube base or in the HV section.

Give is a blow and suck (giggidy).

Dust is always an issue in my house. So, if/when I do open up the set, I expect I will find lots of it inside. Thanks.

 

[Bluejets]

I just turned it on and did not hear the ticking sound

Think what 73's De Edd is getting at is....... if you can vary the volume and the tick varies, it's amplifier problem.
If it doesn't , it is likely to be either ht or power supply problem.

One would need to know either /or......

 

[davenn]

it is likely to be either ht or power supply problem.

Yes ... 99% of ticking sounds are a result of the PSU in shutdown mode

 

[73's de Edd]

99% of ticking sounds are a result of the PSU in shutdown mode
if that was the case . . . . .when I turn it on, the picture and audio are still fine . . .would not be possible, with either an inoperative /or/ surging in and out power supply.
If you are not experiencing the tic-tic . . . . . . . . also take note of the weathers/its room humidity at that time . . . HV hissin' -pissin'and poppin' are more relevant on humid days.
*********************
I can put it up on my mediafire page.
Do dat . . . .since I can find nuttin' 'bouts a PROTON 619 . . .possibly being circa 1970-85 'ish ? for frees.
*********************
Here you were building up that unit as . . . by my perception . . . . as being / having a marvelous piece of heirloom furniture wood cabinet around it.
Turns out to be a dinky 19 incher and not even tight cornered on the CRT and that glass CRT being a flat face plate screen.
Its most impressive frontal feature, being a sheet of plate glass . . . possibly slightly tinted . . . covering the units otherwise bare kine face.

Edd

 

[Explorer]

Davenn, 73’s de Edd, The ticking is unrelated to the volume.

The schematics are here: https://www.mediafire.com/file/e0h6mp5i0dnqqei/619_proton_schmes.pdf/file

I said above that if I turn the TV on and off 2 or 3x, I can get the ticking to go away. However, the first time I hear the ticking, it can be difficult to turn the TV off. I press the power button, and nothing happens. Sometimes it goes off if I press it again. Sometimes I have to press one of the other input buttons (VCR or DISC) in order to get the power button to respond.

I think it’s a nice piece of ‘furniture.’ It’s a beautiful design, especially considering what most other TVs looked like at the time that I bought it. And I had a black trolley custom made for it.

 

[Explorer]

99% of ticking sounds are a result of the PSU in shutdown mode
if that was the case . . . . .when I turn it on, the picture and audio are still fine . . .would not be possible, with either an inoperative /or/ surging in and out power supply.
If you are not experiencing the tic-tic . . . . . . . . also take note of the weathers/its room humidity at that time . . . HV hissin' -pissin'and poppin' are more relevant on humid days.
*********************
I can put it up on my mediafire page.
Do dat . . . .since I can find nuttin' 'bouts a PROTON 619 . . .possibly being circa 1970-85 'ish ? for frees.
*********************
Here you were building up that unit as . . . by my perception . . . . as being / having a marvelous piece of heirloom furniture wood cabinet around it.
Turns out to be a dinky 19 incher and not even tight cornered on the CRT and that glass CRT being a flat face plate screen.
Its most impressive frontal feature, being a sheet of plate glass . . . possibly slightly tinted . . . covering the units otherwise bare kine face.

Edd

Edd,

I posted the schematics on my mediafire page. The link is in a previous reply above. You seemed interested in and willing to taking a look at the schematics. I’d be curious to know if you think the problem is with the relay I mentioned early on, or circuitry related to it. Thanks!

(I also noted a weird little glitch with the power button above.)

 

[Delta Prime]

I think it’s a nice piece of ‘furniture.’ It’s a beautiful design, especially considering what most other TVs looked like at the time that I bought it. And I had a black trolley custom made for it

I think it's a very cute television you should be very proud of it.

 

[Bluejets]

if you think the problem is with the relay I mentioned early on, or circuitry related to it.

Relay...no......circuitry related...yes
Look for puffy electrolytics...........