I recall the European/ German 'EG' version had an on-board FLOF/ Teletext decoder for the VPT function, along with the corresponding buttons on the remote. They used A2 Stereo there, so perhaps they placed the VPT/ Teletext decoder where the NICAM module would normally sit in those machines..
Had an NV F70 - only way to get stereo out of OPTUS cable TV back in the day was through RF - so it spent most of its live as a demodulator connected to a stereo. sadly power supply failures are common on these.
I recently picked up an NV-FS75 that functionally works quite well, however even though I've cleaned the heads extensively there is some RGB color noise during playback and recording. I suppose in theory both the read and write heads could be 'worn out' in the same way, but I suspect something else is causing it. I had a quick go at checking some caps on the power supply, and I found a few small ones at the very end of the secondary circuit that needed replacing, but it didn't seem to make a difference (even though I didn't trust those caps regardless). Is it worth taking the time to really open up the PSU to remove all the electrolytic caps and replace them, or could the color noise be coming from somewhere else?
@@alexss3 If the FS75 is anything like the FS90 it has some surface mount electrolytic caps that fail in the Y/C processing area. Look for a hybrid board with a white ceramic look to it. The SM caps leak. There are very few SM caps in these machines luckily. Recapping the PSU is par for the course for this era of machines. Use 105 degree caps. I've seen it cause herring bone interference on the picture. PSU's are pretty reliable other than caps.
@@michaell2120 I have the service manual so I will take a look to see if there are any surface mount caps around the Y/C circuitry. Getting the entire PSU recapped will be done as well as you suggest.
@@alexss3 I think you should replace all the power supply caps. Except the large high voltage one on the primary, that one is usually still ok. All the others should be replaced. Even if it is is working now, they will be end off life and could cause the power supply to 'blow up'. I had a few do that already on power up.
It's good it hasn't got a head cleaning wheel they use to cause so much problems and clogged the heads as well as wear them out. I had a f77 and my Technician Guy use to throw the head cleaning wheels in the bin on all machines at service
Some of those auto head cleaning things used foam that turned to mush. Those need to be thrown out. Othered used some sort of felt like material, those might be ok still if clean.
Where do you find all your original service manuals? For just about anything I want to fix, whether older or more modern, it's like trying to find rooster teeth when I search for service manuals whether originals for sale or scans in PDFs.
Some models I've never been able to find a service manual. All the physical manual I got a long time ago. Either buying in lots online. Or visiting TV / Video service centers before they closed down and asking for them.
The later HS800 S-VHS deck power supply has the same heatsink configuration and it has no heatsink grease either. Unusual.
I guess they made sure it was very flat. Or didn't need a large amount of thermal transfer.
I recall the European/ German 'EG' version had an on-board FLOF/ Teletext decoder for the VPT function, along with the corresponding buttons on the remote. They used A2 Stereo there, so perhaps they placed the VPT/ Teletext decoder where the NICAM module would normally sit in those machines..
I see interesting what other regions get.
Had an NV F70 - only way to get stereo out of OPTUS cable TV back in the day was through RF - so it spent most of its live as a demodulator connected to a stereo.
sadly power supply failures are common on these.
Good use.
Power supply is in a poorly ventilated metal box, the capacitors will be hot and wear out fast.
I recently picked up an NV-FS75 that functionally works quite well, however even though I've cleaned the heads extensively there is some RGB color noise during playback and recording. I suppose in theory both the read and write heads could be 'worn out' in the same way, but I suspect something else is causing it. I had a quick go at checking some caps on the power supply, and I found a few small ones at the very end of the secondary circuit that needed replacing, but it didn't seem to make a difference (even though I didn't trust those caps regardless).
Is it worth taking the time to really open up the PSU to remove all the electrolytic caps and replace them, or could the color noise be coming from somewhere else?
@@alexss3 If the FS75 is anything like the FS90 it has some surface mount electrolytic caps that fail in the Y/C processing area. Look for a hybrid board with a white ceramic look to it. The SM caps leak. There are very few SM caps in these machines luckily. Recapping the PSU is par for the course for this era of machines. Use 105 degree caps. I've seen it cause herring bone interference on the picture. PSU's are pretty reliable other than caps.
@@michaell2120 I have the service manual so I will take a look to see if there are any surface mount caps around the Y/C circuitry. Getting the entire PSU recapped will be done as well as you suggest.
@@alexss3 I think you should replace all the power supply caps. Except the large high voltage one on the primary, that one is usually still ok. All the others should be replaced. Even if it is is working now, they will be end off life and could cause the power supply to 'blow up'. I had a few do that already on power up.
Fun fact. The FS90 is the model that superseded the FS100. Go figure?
It is a bit strange.
I would have thought the other way round, but I could be wrong
@@jasonhawkins4528 At least that was the case where I live. The FS90 was a more compact unit height wise.
are you able to look at some teac vcrs? i have 4 of them myself and i love them. great machines
I don't think I have any in my collection, so no. Sorry.
It's good it hasn't got a head cleaning wheel they use to cause so much problems and clogged the heads as well as wear them out. I had a f77 and my Technician Guy use to throw the head cleaning wheels in the bin on all machines at service
Oh yes clean the mode switch/timing gear otherwise the all the timing jumps out. 12voltvids do a great video on how to do that
100% agree. Standard practice was to ditch them.
Some of those auto head cleaning things used foam that turned to mush. Those need to be thrown out.
Othered used some sort of felt like material, those might be ok still if clean.
Where do you find all your original service manuals? For just about anything I want to fix, whether older or more modern, it's like trying to find rooster teeth when I search for service manuals whether originals for sale or scans in PDFs.
Some models I've never been able to find a service manual.
All the physical manual I got a long time ago. Either buying in lots online. Or visiting TV / Video service centers before they closed down and asking for them.
Who else is in denial that the VCR era is long gone and whoever was in his teens in the 80's is now an old man or soon to be an old man.
VCRs will live on!