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  #1  
Old 12-30-2015, 07:21 PM
StarquestMan StarquestMan is offline
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Angry RCA VLP-950HFT....save it or finnish it off?

I recently got an 86' rca colortrack 2000 and have been thinking about getting a VCR for watching some older movies and thought it would be cool to get a vcr to match the set and be compatible with the digital command center remote. i ended up getting a hitachi made rca vlp-950hft (one of those high end "convertable" vcrs that hooks up to an external video camera) thinking surely the thing would be better than my "crapnavox" dvd/vcr combo of course now im thinking the magnavox may be the most serviceable and well made vcr of the two!

once i got the thing after having to pay extra for shipping i opened it up to find what i had kinda expected in a unit its age, melted belts so i replaced all 3 with an mbk-80 belt kit from sound studio electronics and thought i was up and running but i still had a long way to go! there was no display on the vacuum florescent display and none of the buttons on the unit did anything so i opened it up and found that one of the fuses in the thing (one of 7 or 8 in the damn things in the unit!) had blown so i replaced it and now the machine would play ok and the leds and lcd screen on the tape player itself would work but the base unit was still totally dead. then i noticed that one of the corners of the power supply pcb was broke completely off that had a large ground trace running through it so i repaired that and replaced one open capacitor and all the test point voltages were fine after that but still no life from the base unit. i also should mention that all of the boards are covered in that stupid brown glue that darkens and becomes conductive over time that all of the cheap Chinese company's love to coat everything with

so after that i was starting to feel pretty lost and was just blindly testing caps and cleaning crusty brown the glue off of the pcbs. i found one capacitor near the main proccessor that had leaked and the ribbon cable connectors had corroded and was flaking bits of platting everywhere. after that was fixed the damn thing still didn't work so now i was to the point of just blindly sticking my hand in and poking the live traces with my finger that was actually making the vu meter and some segments of the clock to illuminate at various brightness's depending how hard i pushed. so after more fiddling around that flaky ribbon cable must have finally seated and the whole thing started working!

so now the thing seemed to work pretty well so i decided to clean the heads and tape path but then i started getting this static that would scroll down through the picture every second or two through the picture on some known good tapes. i guessed that somehow one of the heads must have clogged so i tried cleaning it again with a piece of paper and alcohol but this time used a slight gentle upward movement to remove any deposit's from the head gaps and it seemed to work! but i noticed that when watching a movie the picture just wasn't as good as it should be and i guessed maybe the tape had some oxide build up from age so i tried putting the tape in the newer magnavox with the lid off and cleaning it with a lint free alcohol pad by running the tape on fast foward as i had seen someone do with great results. after that it played very well on the magnavox (way way better than the rca). so i put the tape back in the rca and the scrolling static was back by now i had had it with the piece of crap that ive got about 80-85 bucks into and let my frustration get the best of me and smashed the top of the control panel on the unit. so now i guess what im left with is a high end vcr with bad heads and a um "defective" control panel face. these are kinda rare from what i understand so there isn't a whole lot of info on these things and im wondering whether this is i good vcr worth trying to source parts for or should i just cut my losses and take a sledge hammer to the thing?

edit: i just came back to the machine now that im in a better mood lol and un-bent the cassette basket that got bent and stuck a tape in. the scrolling static has gone away go figure im now wondering if i didn't wait long enough for the alcohol evaporated the picture is better but not quite as good as the magnavox of course this thing im sure has many more hours than the magnavox. maybe ill just have to keep my eyes open for a face plate from a parts unit on ebay and just get a new upper head assembly once i figure out what model number it takes and i can find one cheap. im still curious how this unit stacks up against other units and common problems these things may have? also does anyone know of any good reading on vcr's and the tricks the pro's used to use to fine tune and troubleshoot them? google is full of short articles on how to do a basic cleaning but not a whole lot on the more in depth stuff

Last edited by StarquestMan; 12-30-2015 at 08:45 PM.
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  #2  
Old 12-31-2015, 01:49 PM
Gunslinger Gunslinger is offline
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I should have the schematic/manual for that and Also the extension cables for servicing if you need them.
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Old 12-31-2015, 03:02 PM
StarquestMan StarquestMan is offline
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Thanks for the reply gunslinger! does that service manual have a part number in it for the upper head drum assembly? ive been looking around for a replacement video head but have really just been going by the pictures of the RCA/hitachi units on ebay but the closest ones i have found appear to be for 4 head machines. i think mine is a 6 or 7 head machine (i think they were called a 5+2 head). if i do end up finding a head for it for a reasonable price (ive cleaned them 3-4 times already with paper and alcohol so im assuming they must be bad) i may be interested in that service manual and cables. how much would you want for them?
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Old 12-31-2015, 03:12 PM
Gunslinger Gunslinger is offline
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I will replace the lamp i my micro fische reader tomoww and look up the part number for the head drum for you. I should have this info this weekend.
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Old 12-31-2015, 03:16 PM
StarquestMan StarquestMan is offline
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Thanks! i really appreciate your help!
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  #6  
Old 12-31-2015, 04:55 PM
Gunslinger Gunslinger is offline
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Here ya go. The head is listed with the cylinder motor as a complete unit. Part number 173723
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  #7  
Old 01-01-2016, 11:32 AM
andy andy is offline
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...

Last edited by andy; 11-20-2021 at 03:19 PM.
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  #8  
Old 01-01-2016, 12:22 PM
Phototone Phototone is offline
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Even though the VHS decks got cheaper and cheaper built, with more plastic, that doesn't mean the picture became worse with new machines. Newer decks do indeed outperform the older decks, even though they are made vastly cheaper.
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  #9  
Old 01-01-2016, 07:58 PM
StarquestMan StarquestMan is offline
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thanks for the additional replies! come to think of it the tracking control didn't have an effect on it once it started doing this and this unit is loaded with small electrolytics mostly nichicons but there are lots of crummy sanyo branded ones as well and i did replace a leaky matsushita cap that i believe helped to get the display/clock back up and running in the base unit. im glad to hear that there are more things to check before blaming the heads since i cant find one anywhere, at least with that rca part number, i don't have a clue how i would cross reference a third party one. ive been noticing that lots of caps have been testing test good on my esr meter that really are bad like the leaky one replaced earlier so i may just start shotgunning caps (someday i will buy a capacitance meter and do things the smart way). since i do need a face plate regardless now i did actually find a parts unit on ebay and am waiting to hear back from the seller to confirm the suspiciously low $17 shipping for such a heavy unit. i guess if i do end up getting it ill have a spare head drum for mine although im really thinking now that mine probably has low hours on it since it looks immaculate but has so many problems that appear to be from not being used much. maybe ill run some more movies through the thing and see if the thing wakes up a little more.
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Old 01-01-2016, 09:23 PM
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rca2000 rca2000 is offline
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One thing to look for on ALL of these convertible RCA/Hit VCR's...

The BOTTOM COVER.....have screw hole rings....which tend to CORRODE against the Circuit board...causing a BUNCH of weird symptoms...

Look at the board and the area around where the bottom cover hits the board. If you see corrosion on traces near the screw holes...You DO have a problem. This was a problem OVER 20 years ago...and likely has NOT improved with age...
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Old 01-02-2016, 06:05 PM
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Boobtubeman Boobtubeman is offline
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I still have a few of those convertible units and their cameras, Used to snatch em up as i found em.. Las recall one being an RCA.. Do you have a pic of your setup??

SR
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  #12  
Old 01-03-2016, 06:20 PM
StarquestMan StarquestMan is offline
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here are some pictures of my setup....well whats left anyway
edit: by the way i did check those holes on the main pcb where those rings from the screw indention's press against the pcb but everything was found, i did however find some tiny .22uf electrolitic sanyo's that im thinking may have to go but i doubt i have any electrolytics that size. i wonder if some 224k mylars or somehing would would be best?
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Last edited by StarquestMan; 01-03-2016 at 06:28 PM.
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  #13  
Old 01-03-2016, 06:29 PM
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Electronic M Electronic M is offline
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Quote:
Originally Posted by StarquestMan View Post
here are some pictures of my setup....well whats left anyway
edit: by the way i did check those holes on the main pcb where those rings from the screw indention's press against the pcb but everything was found, i did however find some tiny .22uf electrolitic sanyo's that im thinking may have to go but i doubt i have any electrolytics that size. i wonder if some 224k mylars or somehing would would be best?
Yeesh, could the cassette load door be any more demolished!?

If it was like that when you got it, then I'm surprised you even purchased it.
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  #14  
Old 01-03-2016, 07:01 PM
StarquestMan StarquestMan is offline
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no i had lost my temper earlier and punched it the thing was quite immaculate cosmetically speaking when i got it i think it looks worse than it is at least since only two pieces broke when i got mad which was the door itself and the bezel around it. i usually don't let things get to me when fixing things but i definitely screwed up on this project. in fact i have spent hours hunting down problems on a problematic flat screen that i had to fix 3 times since i got it and never even got close to getting mad at it
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Old 01-03-2016, 07:12 PM
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rca2000 rca2000 is offline
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Been there....>DONE that.

Over 20 years ago...I had a fisher CD changer....it had a load problem...it would just KEEP going from bottom to top...NOTHING seemed to help. After HOURS messing with it...I SMASHED my fist down on the deck !! Needless to say...it did NOT do it anymore !!

I have almost the EXACT RCA VCR you have...mine lost tuning and display a while back...I never "played with it" so far...this has been a REAL up-and-down year for me.. maybe 2016 will be BETTER..

I re-belted mine a few years back...and it WAS working... I sought out a VLP convertible unit, like you did...since that was the ONLY one they had with front load..and the LAST year RCA made one...after THAT...they ONLY had camcorders...no video "cameras"..
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