Bars on video playback

glen65 · 1st January 2007, 06:04 PM

Hello,
I am working with a Canon ZR80 Digital Video Camcorder.
I am getting solid horizontal bars running through the
picture during playback on the LCD screen. See pic below.
I cleaned the heads but it didnt help. Any ideas?
Thanks.

Pano · 1st January 2007, 11:08 PM

Strange... Sure looks like dirty heads on an analog VTR.

Try the head cleaning again. If you can't get it going, you may have to have a tech look at it. I killed the heads in my old Sony Hi8 cam just under normal use. And I've seen heads go bad in Pro BetaCam units often enough. Hope that's not it!!

Let us know what you find.

gmphadte · 2nd January 2007, 04:24 AM

This problem is definately not due to head problems.

Gajanan Phadte

dnsey · 2nd January 2007, 12:55 PM

Could be induced hum, but it looks a bit too 'solid' for that.
Is the problem present on an external monitor / player?

glen65 · 3rd January 2007, 12:17 AM

Thanks for the response,
Ok first as “dnsey” recommended I hooked it to an external
monitor and it did the same thing. I decided to try another tape so I did and I got the same result “but” after about 10 seconds of play it slowly returned to normal and now the picture looks fine. I then went back and played the original tape and it looks ok too.

gmphadte · 3rd January 2007, 03:02 AM

could be dry solder

Geek · 3rd January 2007, 04:20 AM

Quote:

Originally posted by gmphadte
could be dry solder

I was thinking that.

In the TV shop, pictures like that meant oscillation somewhere, usually due to a bum bypass cap. Cold solder joint on such a cap can make one pull hair out

1st January 2007, 11:08 PM	#2
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Strange... Sure looks like dirty heads on an analog VTR. Try the head cleaning again. If you can't get it going, you may have to have a tech look at it. I killed the heads in my old Sony Hi8 cam just under normal use. And I've seen heads go bad in Pro BetaCam units often enough. Hope that's not it!! Let us know what you find. __________________ Take the Speaker Voltage Test!

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2nd January 2007, 04:24 AM	#3
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	This problem is definately not due to head problems. Gajanan Phadte

2nd January 2007, 12:55 PM	#4
dnsey diyAudio Member Join Date: Mar 2004 Location: Shropshire, England	Could be induced hum, but it looks a bit too 'solid' for that. Is the problem present on an external monitor / player?

3rd January 2007, 12:17 AM	#5
glen65 diyAudio Member Join Date: Jun 2004 Location: mid Ohio USA	Thanks for the response, Ok first as “dnsey” recommended I hooked it to an external monitor and it did the same thing. I decided to try another tape so I did and I got the same result “but” after about 10 seconds of play it slowly returned to normal and now the picture looks fine. I then went back and played the original tape and it looks ok too.

3rd January 2007, 03:02 AM	#6
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	could be dry solder

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