JVC HRA5 SQPB VHS VCR Remote Control Does Not Work

I would not call SQPB a unique feature. Many JVC and Panasonic had SQPB label, but I found out that there were quite a few VCRs that could play SVHS recordings without having the SQPB label, like the 1991 PANASONIC AG-Wl, "Tape format: VHS video cassette (with easy playback function for S-VHS cassettes)" or a 2007 Sony SLV-D380, "The VCR can also play S-VHS tapes recorded by S-VHS mode. The VCR will automatically identify the type of tape inserted in the VCR (either VHS or S-VHS). When S-VHS tapes are played in the VCR, the enhanced resolution will not be visible on screen; there may also be picture distortion while playing the S-VHS tape in slow motion or while utilizing other special playback modes. The VCR will not record in S-VHS mode on an S-VHS tape." Frankly, I don't know why SQPB hasn't become standard across the board. Moreover, why VHS has not been replaced completely with SVHS in 1987. AFAIK, SVHS-ET plays like a regular SHVS tape. Standard VHS machines don't know anything about the detection hole, they just play a tape, and the frequency on ET recordings is almost as high as on true SVHS tape. I guess, ET is like Super Beta. I need to make an SVHS tape and an SVHS-ET tape and play in a standard VHS machine to compare. JVC warned that ET worked only on better tapes, I believe the machine does a short test recording first to engage the ET mode, I need to double-check. I have a VCR and a couple of camcorders that can do ET, but I always use SVHS tape for SVHS recordings.

I watched your video in hopes of getting more insight to my GE VCR issue - the remote works for everything except turning the player on. Seconds before writing this I looked at my remote control, and right next to the "Power" button are 3 buttons for "VCR" "Sat Cable" and "TV." I said to myself "cripes" maybe I'm supposed to be pressing the "VCR" button instead of "Power." And to my Amazement the friggin thing turned on. The added layer of difficulty is the dang front panel display on the VCR is so dim I have to have the TV and receiver on to make sure, and I hope I don't forget how to use those remotes.....

I bought a Mitsubishi Hi-Fi VHS last year. It is a weirdo. It uses solutions that were outdated in 1995, when it was made. Like most of the features are set by sliding switches on the front, while most VCRs of the time used menu contol (or separate buttons on the front and the remote) to achieve it. It is also a dinosaur inside, filled with muliple layers of circuit boards and a lot of trimmers, while other VCRs form that time used single board construction like this one, and the signal processing was highly intergated with minimal number or no trimmers at all. It also has a linear power supply! The other thing about it that really surpised me: it is an SQPB machine, but it doesn't advertise it on the front or anywhere. There's a tiny hidden slide switch on the front that enables SQPB. I hit the jackpot with this one, because it was sold as non-working, with the original jog shuttle remote, for the equivalent of $14. Turned out it was just the mode switch, it ate the first tape but after exercising it it started working perfectly. It is practically a brand new machine, no tape mark on the pinch roller and the head cleaning roller is also perfectly clean. And it uses the alumina type head cleaning roller which can be left in place because they are not disintegrating like the foam based ones. It has a very beefy looking mechanism. Feels like an ideal workhorse machine for large volume archiving. Not very service friendly though, as none of the trimmers and test points are marked with their functions, only by a designator! Service manual and schematic is not available either.

"CVC - China Video Corp" LOL! First thing that came to my mind when I heard CVC was the CVC engraving on Canadian VHS tapes indicating that you got a Canadian copy.

Yeah, kind of an annoying thing with some JVC VCRs with "auto picture." If there's anything that may trigger auto tracking, it will trigger "auto picture" if the feature is enabled in the VCR's menu.

I don't think S-VHS ET recordings can playback on regular VHS machines, I'm sure I made a few recordings in that ET mode but they didn't play properly on a regular machine. Also some older (early 90's Panasonic) S-VHS VCRs refused to play ET recordings. Without the detection hole on the cassette shell they would stay in VHS mode and not switch over to S-VHS, so playback was wrong on those too. I remember they marketed SQPB as S-VHS in VHS quality. Unless there's something downstream of the RF demodulator softening the image they should at the very least have same definition as S-VHS (400ish lines) but without the S-Video advantage. Most of my S-VHS recordings are off TV so were sourced as composite video anyway. AKAI also marketed their Super Intelligent HQ (I-HQ) VCRs as capable of producing pictures close to S-VHS quality on high quality S-VHS tapes even though they didn't actually record in S-VHS only regular VHS! I remember you had to perform an auto adjustment before recording on those AKAIs by pressing the I-HQ and REC buttons together. Once the machine had assessed the tape quality it would store that until the cassette was ejected. Not sure what they were doing, I assume some sort of RF record current adjustment, the same as you get on broadcast 1 inch C format VTRs, or maybe it was seeing how far it could push the limits of the RF modulator frequencies to get the widest bandwidth.

I have one machine that's similar to this one, but it's able to play both NTSC and PAL norms. Unfortunately, it's not able to play PAL SVHS tapes.

I recently tried recording S-VHS content on a regular VHS (cheap TDK) tape by drilling a hole on it. In SP it looked acceptable and better than standard VHS, but in LP it was a mess with streaks all over the picture. I used an NV-FS200 (PAL AG-1970) for this test. I then tried a real S-VHS (actually an ADAT) tape and it looked great on both speeds.

I found - and maybe I am wrong - that those IR receivers were two types: one with a simple OC transistor (or two in darlington) at the output, it needs an pull-up resistor to properly work and another type, that have a TTL gate at output and it works without any exernal component, it feed the correct signal in the microcontroller. Maybe the one that had low sensitivity had OC output and it just needed an pull-up resistor. I found that, when I was trying to send audio over IR using such a receiver; I used two identical components that had some color stripes, different colors on each one. Turned out that they were different as theirs outputs were one pure TTL 5V.

do these IR detectors have part numbers on them like other ICs and transistors? i guess the datasheet would have the wavelength it expects

You can also point the remotes emitter at your cell phone camera to see if its working.

When you say reduced lines in resolution, how do they recover it? Through line doubling? Or do you actually mean columns?

Bom dia, vc tem um vídeo consertando um auto rádio toca fitas Mitsubishi RX 77?

Hey, I have a PAL VCR I really would like to get working. I bought new belts for it but they were all either too small or too big. Where are you located?

Why don't you change the capacitors on the psu? if i were you, they would've been the first thing to be changed. it's a 30'ish year old hardware... the cap's are most likely dead. change all the electrolytic caps and try again. it surely work as a charm :)

What was jvc again junk video crap lol