The orange stuff is actually glue, to stop the larger caps wobbling on their legs during manufacture and shipping. It can cause issues as some types become slightly conductive with age, but it’s not electrolyte leaking out from the caps.
Thanks for the input, but I don't agree innthis instance. I've worked on 6 of these and this was the only one to have that on it. It also did some damage to traces by blackening the traces around some SMD parts.
Nice video, Steve. The reason it would not output video was that cap you replaced on the small power board. That takes the 12v DC coming in from the PSU down to 5v for the video processor to work. Just FYI, for future testing you can make a dupont to S-video cable and test the output of just the video board. Saves you some time if you see these regularly.
Cool video. I’ll have to keep an eye out for these. Been meaning to tell you, my buddy found me a old Pioneer stereo recently. Not the one I had (that you also have) but it’s a beast none the less. Now I just need to get me some good pioneer speakers for it. One day, I’m gonna get a monitor with you, even if I have to drive and pick it up.
That'd be cool. I found one shop in Houston, Texas that was loaded with cool audio gear, but it was priced pretty high. I've been having a hard time finding good audio stuff out there lately. Hope you and your family are doing well.
Yeah! I've never seen one of these before. So its a distribution amp? One in and several outputs? Whats the extra port next to the s-video on the front?
It's a blanked out spot on the board, so it actually doesn't do anything. It's a weird device. I'm not even sure of everything it does, but people who own them, swear by them. I think the biggest thing maybe be that the device has frame synchronization that eliminates frame drops from VHS transfers.
@@RetroTechUSA I have one. Putting it in the chain allowed me to digitize analog video without having any of the frame drops or sync issues I was having before. So I believe it somehow amplifies the signal? I guess that would make sense if the original tape is degraded somehow but I'm not sure. Bought it when it was just $400, glad I did it then ha ha ha!
@@wormbagged From my understanding of the Wikipedia article, that's not quite correct. The actual problem seems to be not an incomplete sync signal but that the rate of the video signal is varying as it comes off the tape: for the nominally 15.75 kHz scan rate one scan line might be the correct 63.492 μs time period, but the next one 63.555 μs or something else slightly different due to variability in tape speed. (This is something that had never occured to me as someone who deals with video generated from digital sources; even ancient 8-bit computers are _much_ more precise in their timing than analogue VTRs because they have quartz crystal-locked clocks.) So the TBC basically captures each frame (the entire frame data, not just the sync) and then spits it out with perfectly consistent timing, also as a side effect delaying things a little bit. Obviously this is going to make it easier for other equipment to correctly sync to that signal including, it seems, cheapish video digitisers that don't have particularly sophisticated sync circuitry designed to handle input that varies in speed.
I didn't realize it's up to $3,000 bucks now Steve. I can't believe it. Welp, if it's up that's high, there's a goo reason for it for sure bro. 8^) Anthony..
Hi, I have this device and it produces darker/dimmer/less sharp image (with halo). The capacitors seem fine, no apparent leakage or deformation. Tried various cables and VCRs, both RCA and S-video connections, so the issue is within the device. Any recommendations on how this could be fixed would be greatly appreciated.
VHS-Decode's software time base corrector handles tape damage far better and has far more control. These units like most TBC's now are just a inflated collectors item.
It is glue. Notice that there was none of it in towards the center of the base of the removed caps. If it had leaked from the cap, it would be all over the two leads under the cap. But it wasn’t.
Hello, I wanted to ask you about my monitor, I use Hansol 710A monitor that had bit of blurry screen, so I wanted to open it, It had 2 screwholes in bottom after that I couldn't open it and I tried to go slowly with screwdriver on sides to unclamp it, seeing i'm not successful to do it, I quit from doing so. When I put everything back together and turned it on, it has one horizontal line flickering on black background, when I looked closer line has red green blue colors on it, with green being most visible, is there way to change this to dissapear? I tried changing monitor resoultions and hz, and everytime I changed it, it has line flickering on other spots, only when its black background though. I tried to search about this problem online but I couldn't find any similar problem, thank you for anyone reading this message and who might have solutions to my issue :)
The orange stuff is actually glue, to stop the larger caps wobbling on their legs during manufacture and shipping. It can cause issues as some types become slightly conductive with age, but it’s not electrolyte leaking out from the caps.
Thanks for the input, but I don't agree innthis instance. I've worked on 6 of these and this was the only one to have that on it. It also did some damage to traces by blackening the traces around some SMD parts.
Hi, yes i can confirmed that this is a manufacture glue. I have seen this in a lot of board's, not only AV stuff but in other devices too.
@@RetroTechUSA now to see if he's man enough to own up to the mistake
@@RetroTechUSA this is a glue
@@sullah1986. Interesting. Is it common that for a particular device some units will have glue and other units not?
Nice video, Steve. The reason it would not output video was that cap you replaced on the small power board. That takes the 12v DC coming in from the PSU down to 5v for the video processor to work. Just FYI, for future testing you can make a dupont to S-video cable and test the output of just the video board. Saves you some time if you see these regularly.
Thanks for the info!
It's up to $3000 now? Wow.
Cool video. I’ll have to keep an eye out for these. Been meaning to tell you, my buddy found me a old Pioneer stereo recently. Not the one I had (that you also have) but it’s a beast none the less. Now I just need to get me some good pioneer speakers for it. One day, I’m gonna get a monitor with you, even if I have to drive and pick it up.
That'd be cool. I found one shop in Houston, Texas that was loaded with cool audio gear, but it was priced pretty high. I've been having a hard time finding good audio stuff out there lately. Hope you and your family are doing well.
Congrats on the collab with EposVox, i love his channel. Surprised to see your mug there lol
Thanks, we go back a few years. I'm thrilled to get to work with him on something.
Mike Chi or somebody needs to make a modern FPGA replacement for these VHS time-base correctors!
check out the VHS decode project, its even better quality
@@wormbagged Oh, I've checked it out. However, not everyone can afford to use or even have the technical know-how to calibrate a VCR for VHS-decode...
Do you make these videos just because you like to? ( great job btw)
Thanks, I make them to try and help people as well as promote my work some too.
Yeah! I've never seen one of these before. So its a distribution amp? One in and several outputs?
Whats the extra port next to the s-video on the front?
It's a blanked out spot on the board, so it actually doesn't do anything. It's a weird device. I'm not even sure of everything it does, but people who own them, swear by them. I think the biggest thing maybe be that the device has frame synchronization that eliminates frame drops from VHS transfers.
@@RetroTechUSA I have one. Putting it in the chain allowed me to digitize analog video without having any of the frame drops or sync issues I was having before. So I believe it somehow amplifies the signal? I guess that would make sense if the original tape is degraded somehow but I'm not sure. Bought it when it was just $400, glad I did it then ha ha ha!
@@mrtuckerlucas It captures the sync and rebuilds it in digital to then output a clean complete sync signal that the original tape may not have.
@@wormbagged From my understanding of the Wikipedia article, that's not quite correct. The actual problem seems to be not an incomplete sync signal but that the rate of the video signal is varying as it comes off the tape: for the nominally 15.75 kHz scan rate one scan line might be the correct 63.492 μs time period, but the next one 63.555 μs or something else slightly different due to variability in tape speed. (This is something that had never occured to me as someone who deals with video generated from digital sources; even ancient 8-bit computers are _much_ more precise in their timing than analogue VTRs because they have quartz crystal-locked clocks.)
So the TBC basically captures each frame (the entire frame data, not just the sync) and then spits it out with perfectly consistent timing, also as a side effect delaying things a little bit. Obviously this is going to make it easier for other equipment to correctly sync to that signal including, it seems, cheapish video digitisers that don't have particularly sophisticated sync circuitry designed to handle input that varies in speed.
ua-cam.com/video/__6I_JhTYWM/v-deo.html
I didn't realize it's up to $3,000 bucks now Steve. I can't believe it. Welp, if it's up that's high, there's a goo reason for it for sure bro. 8^)
Anthony..
Yeah, it's pretty crazy. I wish I could find a box of broken ones. They are pretty easy to fix.
Hi, I have this device and it produces darker/dimmer/less sharp image (with halo). The capacitors seem fine, no apparent leakage or deformation. Tried various cables and VCRs, both RCA and S-video connections, so the issue is within the device. Any recommendations on how this could be fixed would be greatly appreciated.
VHS-Decode's software time base corrector handles tape damage far better and has far more control. These units like most TBC's now are just a inflated collectors item.
Informative video, thanks for sharing, like it :)
The orange stuff is not a leak, it's a factory glue that dried up, The capacitors could be just fine.
Then why did the device not work before I changed the caps? Once I changed the bad caps it worked.
@@RetroTechUSA Some of them may be bad, I'm not saying your caps are 100% good, I'm just saying the orange stuff is glue not electrolytic fluid.
I cannot believe he thought that was electrolyte.
Believe it.
Nice GN mod mat.
Thanks, it's really awesome.
that orange crap. looks like glue used to hold them in place
It is glue. Notice that there was none of it in towards the center of the base of the removed caps. If it had leaked from the cap, it would be all over the two leads under the cap. But it wasn’t.
Hello, I wanted to ask you about my monitor, I use Hansol 710A monitor that had bit of blurry screen, so I wanted to open it, It had 2 screwholes in bottom after that I couldn't open it and I tried to go slowly with screwdriver on sides to unclamp it, seeing i'm not successful to do it, I quit from doing so. When I put everything back together and turned it on, it has one horizontal line flickering on black background, when I looked closer line has red green blue colors on it, with green being most visible, is there way to change this to dissapear? I tried changing monitor resoultions and hz, and everytime I changed it, it has line flickering on other spots, only when its black background though. I tried to search about this problem online but I couldn't find any similar problem, thank you for anyone reading this message and who might have solutions to my issue :)
Do u have one for sale ?
Hello do u sell one?
what do these devices do?
Whats the purpose of a time based corrector?
rebuilds shoddy frame sync and line sync from tape based video sources
I don't understand why there aren't any Chinese companies making Time base corrector's...
Why in the world were these small devices so expensive?
They are rare and do something that newer equipment can't.
New capacitor kit.
Yummy, peanut butter.
You got $6000 worth of tbc
Change all the caps and u should be good