Panasonic VCR PV-4760

Get a cable box, set it for channel 4 (thats VHF) Connect cable, use cable box. Beats throwing a VCR that works except for a bad tuner away.

Charlie Bress:

Unplug your soldering iron and put away your DVM.... and don't get dressed up..... there are NO discrete switches or components that have anything to do with the tuner setup for off air TV antenna or CATV modes..... that went away many years before your VCR was built..... it's all done with internal software and your "factory remote control."

With the "factory remote" you can select TV (antenna) or CATV modes by pressing the "CH MEMORY" button and the "1" button simultaneously and then press "1" to make the selection..... or if your VCR is slightly newer you can enter the on-screen menu by pressing "MENU" and select "set up channel/auto set" and then select "Antenna system", then select "CATV"

If you do not have the factory remote you are SOL.

-- Best Regards, Daniel Sofie Electronics Supply & Repair

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Nice try, but no cigar. I have the original factory remote as well as the original user's manual. There is no "CH Memory" button on the remote. There is one on the VCR panel but that and "1" have no effect. The remote also does not have a "MENU" choice. There is a "FUNCTION" button on the remote, but that does not give any input information. BTW, even if the antenna function were software driven there would still have to be some physical entity to actually direct the signal path.

Charlie

Ah, Kip' your advice is outstanding. Since you are obviously clairvoyant and have such an expanded knowledge (as well as your expanded ego) perhaps you would advise what page of the manual will instruct me on a back door method of getting around the failure of the prescribed method of selecting the antenna input choice.

Charlie

Charlie Bress: Insulting regulars on this NG will not get you the information you are looking for. At the very least you should accept the suggestions (and guesses) without your negative, ungrateful editorial comment. .... and maybe even say "thank you" for someone bothering to take the time to reply to your request. Maybe you should just bite your damn tounge. Without exception VCR tuner TV/CATV problems I have encountered since I have been fixing VCRs in my shop since 1982 have not involved software or even discrete components problems. Usually it is an "operator" procedure error or even a bad tact switch/cracked solder connection.

While we can put a man on the moon, there is NO readily definable "back door" method to solve your problem. So lighten up and look at your operator manual or try to find one on-line.... I think that your answer lies there. electricitym

I responded the way I did to Kip, because I thought his post was insulting. He had no idea of what I had already done. Instead I got the shoot from the hip "read the manual" Didn't he think that having owned this particular VCR for 17 years I had read the manual.

I suspect a component failure as the fault appeared out of the blue with no warning. I opened the box and was able to confirm that the panel switch was o.k. This VCR has several circuit bards and I was hoping that someone might have an old service manual or even a Sam's and been able to provide some direction as to where to concentrate my efforts. One symptom that makes me think that there is a component failure is that the panel indicator that shows TV/CATV is not lighting up.

I come to this group asking a legitimate question and really without a very high expectation of getting the answer, but better to have tried than just giving up.

The first TV I ever had the opportunity to repair was around 1954. It was a

7" Dumont with a round electrostatic deflection tube and a brute force power supply. So I have been doing this sort of stuff for a few years.

So, if anyone feels insulted by my blast at Kip, I apologize. Frankly, as I know that this group is populated with professionals, I had expected a better response than a cheap "read the manual"

As far as trying to find an answer on line, this has been it. There was an earlier response that was a good faith effort. I tried the suggestions, but they were not compatible with the VCR. Google searches were not productive.

Charlie

Channels 14-23 (or so) are actually below 13...did it go higher than

23 before. The suggestion to get a converter is a frequently-offered and good suggestion.

Tom

Without exception? I question that. A uP can't affect tuning on modern VCR's? An open resistor on the main DC supply line can't affect tuning? Think again...

Tom

Thanks, Tom. Some one else also suggested the converter. I will probably go that way. Until it crapped out the other day it would tune all the way to the top of its range into the mid 60's. With time on my hands it might have been an interesting project. But not without at least a schematic and hopefully board layouts.

Charlie

Tom: I don't have to think again...... ..... a power supply or uP fault can prevent the tuner from working properly but I have never specifically seen (personally or in my repair shop) this type of fault prevent the tuner that is working OK in the TV AIR mode from going into CATV mode..... and I have fixed thousands of VCRs over the years. electricitym . .