Tear down, repair and realignment of a Sony SLV-555 VHS mechanism. Demonstrating the lubrication of critical parts, timing of the mechanism, and alignment of the tape path.
Пікірлер: 129
@BarfMeARiver5 жыл бұрын
I am by NO means mechanically inclined, but I just needed to thank you for putting this video up. My old SONY VCR just broke a tape and ejected some of its parts, and I was able to find where the parts went and put the machine back together by watching your video and paying attention to where things were inside. Thank you so much for this incredibly informative and well done video. It was invaluable in figuring out what to do.
@d.a.d.divorcedanddetermine8385 Жыл бұрын
I have a few old tapes like the one you showed from the very early 80s. They were my dad's tapes. Amazing how much heavier those older tapes were compared to tapes made years later.
@abc-ni9uw5 жыл бұрын
I love the sound the mechanism makes when it's loading/ejecting
@abc-ni9uw8 жыл бұрын
from 38:22 - 38:28 - the sound of the mechanism engaging is music to my ears no joke... judt one of those things I grew up with and will never forget even 25 plus years later. :)
@supermasterPIK8 жыл бұрын
That robotic sound ... Specially woith older mechanisms which in STOP mode had the tape inside the cassete and when pressing PLAY the whole system had to pull tape around drum. Later thet only kept tape milimetrical from drum.
@crashbandicoot4everr8 жыл бұрын
RCA VK 250! One of the first VHS blank tapes. Released in 1977.
@Watcher32239 жыл бұрын
Ugh, I've owned a few Sony VHS decks. An SVO-160, an SLV-575UC, an SLV-750HF, and an SLV-R1000 (a Super VHS). Great picture and sound, but fairly complex machines with some plastic parts that would break (such as one of the spring-loaded gears you've pointed out that drives one of the guidepost shuttles). Then you've got problems with the advance motor and the loading carriage motor; the plastic universal joints develop splits, which cause them to slip on the motor shafts, keeping them from driving the mechanisms. And, yeah, the infamous sticking take-up arm. And, with the SVO-160, I had to replace the capstan bearing as it was causing the capstan rotor to scrape against the motor coils. Fortunately, the coils didn't get damaged badly enough to cause the affected coils to short. And, mentioning the SVO-160, it was also fun cleaning up and recapping the SMPS power supply. Elna "Longlife" caps. Yeah, right... When I was in the room with that thing plugged in, I suddenly started smelling rotten fish and I knew something developed bad caps. Then there's the ubiquitous mode switch problems that plagues so many VCRs of many different makes. I've truly enjoyed your videos. Absolutely superlative repair skills.
@tyler26108 жыл бұрын
Thanks for your informative videos! I just aligned my VCR tape posts by watching the picture improve or get worse as a tape played since I don't have an audio scope but it worked! I really enjoy watching your videos even though most of this is foreign to me and I have little mechanical ability. I guess I am just very impressed with people like you who have such a vast knowledge of electronics and seem to be able to fix things with such ease.
@12voltvids10 жыл бұрын
Actually I incorrectly said all Sony's were the same. This is not true. Some of the late model units used a different chassis, as they were made by different manufactures. All the Sony made machines used this chassis.
@supermasterPIK8 жыл бұрын
That´s a 1992 mechanism. From 1995 on, they used FUNAI´s-
@TheVCRKing7 жыл бұрын
Not all modern VCRs from 96-2016 used Funai mechanisms.
@TheVCRKing7 жыл бұрын
Yeah! Shintom used another mechanism. But they're good.
@coferryan907 жыл бұрын
12voltvids hey my name is Ryan I have a Sony slv-679Hf and I having problems I keep on getting error code when I'm trying to rewind the tape and the error code is 41105 so can you please help me you can contact me by email my email address is ryancofre32@gmail.com
@12voltvids7 жыл бұрын
There are 2 optical reel sensors on the circuit board under the reel tables.If you look @ 30:45 you will see them. One is under my thumb and the other one just above it. These measure the reel rotation so the machine knows the tape position especially during rewind so it can slow down as the tape gets to closer to the end. These are a fairly common failure.W will probably di a video showing that failure at some point in the not too distant future when I do another series on VCRs.
@Peppermint12 жыл бұрын
I have a cheap JVC and a Sony VCRs both from 2002. The JVC still works, the Sony doesn't have sound (bad capacitors). These are decent units with decent image. You don't need a high end fancy VCR to enjoy a movie. I think an unit from early 2000s is a good choice if it still works, chances are it has seen little useage and will be in good shape. Just be sure to keep it unplugged unless you are watching a video. This way the capacitors will last longer.
@clydesight9 жыл бұрын
I love your videos! I had a SONY HiFi VHS machine that was eating tapes because one of the arms was sticking thanks to the lubricant. This also happens in all their audio recorders, and the ones from the 1960's can get so bad that some metal parts get fused together! We call it "Glubricant". It is a nightmare to fix on the audio units because you have to take almost every part out and clean and re-lube it. Fortunately, there are no problems with timing gears! I love how you explain every step of the repair process and show the machines as they thread the tape and so on. Fascinating stuff. Also looking at the torturous tape path, it is no wonder that VHS tapes wear out so quickly. Thanks for posting this video.
@12voltvids9 жыл бұрын
The metal parts fusing together is exactly what happened in my old Sony 3/4 playback machine. I had to rip that unit apart and lube all the parts.
@russellmabbley17514 жыл бұрын
Good repair Chanal verry well explained thanks for teachings. I enjoy watching repairs of TV and VHS and older stuff good work
@vhsdvdmanaus5 жыл бұрын
Hi. I thank you so much for the videos. Do not discard any other equipment, thanks to its instructions.
@tpd19678 жыл бұрын
Thanks for this video, i've managed to fix both my Sony VHS machines! I short tutorial on where to lubricate the mechanism, and with what, would be useful, one of mine sounds rough/dry...
@robertmattison12829 жыл бұрын
Best video on youtube. I like the fact that you should check the vcr before playing a tape.
@KneeBittenNymphs9 жыл бұрын
Fantastic video! Best one on Sony VHS VCRs on KZfaq. I actually had an SLV-555 I bought back in 1989. I was a workhorse before it bit the dust nearly a decade later. Now I have a problem I hope you might be able help me with. I'm currently using SLV-920HF, a much later model than the 555, but which still has the Sony made mechanism. I've just started having a problem with it. During playback after a few minutes the tape will start to slow down and speed up. With the cover off you can actually see the reels in the cassette slowing then surging. If I press Stop then Play again, it plays normally for a while before starting the behavior again. The problem is worse when recording. After anywhere from 2 to 15 minutes, the VCR just simply stops and the code L 20 01 appears on the screen and the display on the front of the unit. The 01 is the code for "Abnormal Take-up reel rotation." Despite all this, FF, RW, forward search, and reverse search still work fine. Do you possibly have any insight into these problems? It's difficult to find anyone with experience troubleshooting these units anymore and I don't know where else to turn at this point. Thanks!
@12voltvids9 жыл бұрын
KneeBittenNymphs Could be the capstan motor.Many of those sony machines, the capstan motor bushing would bend from the pinch roller pressure and cause the rotor to drag slightly on the stator. This causes the drive IC to overheat and then ou get the speed fluctuation and eventually it stalls out.
@KneeBittenNymphs9 жыл бұрын
12voltvids Wow, that was fast. Thanks for the advice. I'll look into it as soon as I get a chance to open up the VCR again.
@constantinpetraru2095 жыл бұрын
Thank you very much for this video. I fixed my sony slv-815ub. You are a star!!!!
@packratswhatif.39906 жыл бұрын
Ahhhh, more great little trade secrets for my last remaining Sony VCR. Thanks again.
@GenerationGap698 жыл бұрын
Really enjoyed your video. I have a sony that won't eject the tape and you have help me a lot, thanks very helpful. Dying Art.
@dbickers4 жыл бұрын
Great help... I am so close, got my blue gear replaced and timing done but my arm isn't working to pull the tape under the pinch roller and the pinch roller isn't going down like it should. I took everything off and lubed it and got that arm to spring back but I may have some more questions.
@user-camdrod2 жыл бұрын
My Sony slv x831. Very best working! Gud luk!
@alvaronoel50818 күн бұрын
You are amazing !!!! Thanks for all yours videos!!! I have a Panasonic Pv 1730 hifi .. the drum head it’s make noise and vibration.. please can you fix it ? How I can make contact with you? Thanks again
@hakugakusan5 жыл бұрын
I wish I have seen this video before fixing my SLV-555. It had a power supply problem but after that was fixed and the machine came alive, the mechanism jammed. Not the greatest design but still cool looking machine. Maybe one day I could have the blue gear 3D printed along with the sliding toothed rod that connects encoder to the grooved mode gear.
@vdochev4 жыл бұрын
Thank you for sharing you knowledge. I am also interested in repairing VCRs and I can learn much from you.
@12voltvids4 жыл бұрын
More VCR videos to come this fall. I have a bunch I need to go through
@lesliemere85633 жыл бұрын
Your videos are awesome. Have a Sony SLV-595HF. Replaced the blue gear. Tap loads and unloads. Also replaced the capstan bearing. Got a new one ladt week from Poland. In the process of moving the machine. My tower gear along with the gear that drives it fell out. I reinstalled them but the pinch roller does pinch the tap to the capstan bearing shaft and tap doesn't move. Need help to re-aligne. Please show how the tower gear and the gear that drives it line up. Thanks.
@12voltvids3 жыл бұрын
I believe there is a video for the tower gear but i will make one just for you. Stay tuned. I will make a short one specifically for the gears on the top of the chassis.
@lesliemere85633 жыл бұрын
Thank you I will greatly appreciate it along with a bunch of others. Thanks again.
@totalrandomtechnolog9 жыл бұрын
I just replaced that bue glear (part number 3-736-147-01) on the loading arm recently on a Sony VCR that has this mechanism, lubbed all critical parts as you mentioned only to find afterwards that more 2 gears and the slide mode plate had slightly damaged teeths that cause the deck to go out of aligment within 2 to 3 tape loadings. What a bummer. The parts numbers are 3-736-177-01, 3-736-176-01 and 3-736-143-01, being the latest the hardest to find for a reasonable price. I hate to see this vcr going to waste, i guess i'll wait for someone to list cheaper parts on ebay or something. Fixing and even wasting money on VCRs today is pointless for many, but i find it to be a great mind exercise and also by doing it we're somewhat preserving history.
@12voltvids9 жыл бұрын
+totalrandomtechnolog I am sure I have the gears you are looking for. I have several of those decks that have the broken blue load gear, and the rest of them are OK.
@adrianmunteanu29802 жыл бұрын
Hi ! Nice and useful video. I have a Sony SLV 777 who had a problem with that leaver that pull the tape to audio head , was stuck. Buy it like this. Take it out clean it and now is ok. But now I have a clean image but no sound. If I use the manual tracking I get sound but the image get worse. Some tapes play with intermittent sound. Trying to adjust the audio head but without success, I got either just image with no sound or sound with poor image or very bad - noisy image with very bad sound ( like you play SP tapes on LP - slower ). Any advices , please if is not to much trouble. Thank you.
@ET3Roberts4 жыл бұрын
THANK YOU SO MUCH!!! I got my SLV-R5UC fixed with parts from my SLV-575UC, could not have done it without your videos, so helpful!!! Do you have a patreon or PayPal account, I feel like I owe you at least a tip.
@12voltvids4 жыл бұрын
Yes I do. paypal.me/12voltvids patreon.com/12voltvids
@tough2133 жыл бұрын
Hello I really enjoy your channel and all the videos you as always do a great job and wishing you all the best to you and your family be safe and careful I look forward to more great videos
@johnburke55298 жыл бұрын
Yes indeed I learned something. Thank you John
@theonemodifier Жыл бұрын
I've tried a dozen different tapes some that were recorded on my JVC Super VHS ET #HR-S5911U, some factory new and old. Play's fantastic for about 30 seconds then goes blue for 10sec. throughout the whole tape. Tried recording something fresh and it does the same. I cleaned it properly, tried adjusting tracking. Any idea's?
@jessen6003 жыл бұрын
Do you know anything about the Sony VCR SLV-N77 I had this thing since around 1998 and it finally stopped working. What it does it has trouble taking the tape, but once it goes it it feeds it normally and you can see the tape go around the head an d the head does spin. However the tape doesn't move. It sits there and it tries to eject the tape but doesn't eject all the way. I wonder if it is a motor or capacitor issue? I wish I had access to maintenance manuals so I have a better idea what is going on.
@volkerking57579 жыл бұрын
i don't know what it is but the Picture is somtimes with small white dropouts. Maybe it come's from the recording that is from a analog Satellite Signal and the dropouts are from the original Signal recorded or the Recorder loos the track (sometimes tracking problem).
@12voltvids9 жыл бұрын
Volker King Small white or black dropouts is usually the head grounding contact is not making a good connection and allowing static charges to be picked up by the drum. This comes, of course from the heads flying around, and running an insulator, in this case plastic (the tape) This is why some tape manufactures like 3M but that black back coating on their tapes. That was to dissipate static charges.The head grounding contact will be either on the top sine, or on t he bottom side of the drum, and is typically a copper strip, with a carbon ground rod making contact with the drum motor shaft.
@janedoe-ri3vj9 жыл бұрын
Great work ! I have a sony slv 825 wich have no sound afther I connected to a tv led euroscart ,please help to fix sound problem !
@robertmattison12828 жыл бұрын
HELLO, I like this video. but I now want to ask a question. Broken gear, can't find replacement, had you ever had any success glueing the to part back together again. Contact cement?? 2nd. could you tell me where your purchase your plastic gear grease. I can't fix's perfection. Good health to you.
@12voltvids8 жыл бұрын
I am going to take a broken one down to a local shop with a 3D scanner/printer and see if they can make one for me. If it works out, I will be able to fix a few of my broken Sony units.I will keep everyone posted to the 3D printed gear once I get it done. There will be a video done of it.
@martinhesse61747 жыл бұрын
Hi 12voltvids,Great tutorial, it was of much use to get the first issues fixed on my VCR SONY SLV-835 that was the broken blue gear which I glued and one of the loading levers. After some years of non-use I want to get the VCR back to work in order to digitalize some home made tapes. So after having the gear issue fixed I was happy when the tape was properly loaded again. However, the tape is not going to play at all. When pressing "Play" button it tries to do something but the tape is not moving forward and after 3 or 4 seconds the VCR stops the process and releases the tape from the head drum without ejecting it. Fast forward, fast backward, eject, pause and even jog backwards pic by pic is working but not pic by pic forward and no normal play. So, I was wondering if there is any trouble with the sensors on the sensors plate but I am not quite sure. Do you have any clue about such failure? Any advice how to clean the sensors? Any comment, help, explanation is much appreciated. I have carefully checked all the holes to be aligned in reset position when I did the repair of the gear. So I am sure that the issue is not due to a wrong reset position. Is there anything I can test, check to localize the issue. Could it be another gear that is hidden in the chassis and not properly working? Sorry to bother you but I am helpless.Cheers!Martin
@evandrogomes15757 жыл бұрын
I have the same mechanism. The problem looks like speed is not stable, since video gets ok and a bit bad each rotation and in the same Audio looks like speeking inside a mug. Any clue ? Thanks.
@AlexUrsuBukowina2 жыл бұрын
Hi! How do I change the strap on a Sony EV-T1
@supermasterPIK8 жыл бұрын
got 2 SLV X65 ... my technician said they both have no solution. One has the PSU with wires cut and short circuit. You plug it, no power. The other powers on but He says SYSNCON circuit is damaged. How can I get the m back to life? Thanks
@benmeuninck74104 жыл бұрын
my black sony with wood sides not eject unless i turn the take up gear for rew-ff do i need to clean the switch
@tonyranft9318 жыл бұрын
My tap loader wont eject my tap. It will beep 3 times when i hit the Eject botton. Iv tried to check all the loading gears, none of the will move. slv-585 everything was fine, i put in a tap and now i cant get it released... all the tap is loaded in the tap itself... is there any way i can turn a gear to release the tap.
@PreppyGuy0075 жыл бұрын
I have a question. Would it be possible to upgrade a VCR tuner to a ATSC digital tuner? Or is there more involved than just switching out the NTSC tuner?
@WonderfulDay20232 жыл бұрын
Who can suggest how to repair Sony slv-286EE? I have a machanical problem of the loading gears (mechanism) with it.
@ShoreDesign8 жыл бұрын
Great work , you are a pro John , Thank you very much.
@12voltvids8 жыл бұрын
+Jack Bauer Who's John?
@ShoreDesign8 жыл бұрын
Its nothing my mistake , i thought your name was John , i watched you for the first time
@12voltvids8 жыл бұрын
+Jack Bauer Ha ha, well I get called worse... by my kids.
@MrPageplayer4 жыл бұрын
I bought a SLV-575UC that was supposed to be working but it wouldn't play. Thanks to you I found the broken gears and got it to play But.. As it plays, Tracking gets worse until get goes to static, and Hi-Speed does nothing. Please Help.
@12voltvids4 жыл бұрын
Check the capstan bearing housing. They bend and allow the rotor of the capstan motor to run the stator coil. If the top of the bearing is copper colored then it is the old type that bends. If it is silver it is the newer style but they still eventually bend and need to be straightened.
@MrPageplayer4 жыл бұрын
@@12voltvids Thank you! I'll take a look
@yandmaster2 жыл бұрын
I imagine old Time very hard watching home video until to day you just need monitor or television and lets the file play you favorite movie...
@ramchandrayadav84163 жыл бұрын
Sir, my vcr on but not playing, please suggest me what I do
@Daniel612482 жыл бұрын
I love the video's
@LiveSteamMad9 жыл бұрын
Excellent stuff. I see how you used a pre-recorded tape "The Art of Steadicam JR" to do the alignment with instead of an actual VHS Alignment Tape. I wish I could do this alignment with my TCD-D8 portable DAT but I have no DAT Alignment Tape and no osciliscope. BTW what brand and model number is your osciloscope? I enjoy watching your videos, it seems I learn something new every time from them.
@12voltvids9 жыл бұрын
I just grabbed that one as I figured that youtube wouldn't complain about copyright if the image was shown on the TV. I got popped last year for a copyright violation because a 10 second shot of the screen was in the shot, and that really pissed me off, as there was no intend to violate, I was repairing a TV, and had an antenna on it when I was testing, and the fox show just happened to be on the air at the time. About 10 seconds showed, and I was blocked world wide and got a copyright strike. I re-edited it, blurred the screen and sent a nasty message to youtube about it. (see the panasonic TV flickering screen repair and you will see what I mean)
@drcoolit9 жыл бұрын
what size hex wrench is that for the set screw on the guide post? I also have the 676UC where the machine acts "strange", doesn't obey the commander remote, pause causes the capstan/pinch roller to engage but PLAY causes them to disengage, and then the machine just STOPS - have to turn off the machine and then turn back on to get it to do anything (but it never plays). Any ideas? Could an encoder switch problem account for this? I don't think the switch has ever been cleaned. Thanks for any input.
@12voltvids9 жыл бұрын
drcoolit Yes that sounds like the encoder switch. Could also be dried grease on the pinch arm assembly, or possibly a broken plastic piece of the pinch roller that broke when grease dried out and jammed it from moving up and out of the way during an eject cycle.The hex key is I believe 1.5mm or 2mm.
@drcoolit9 жыл бұрын
12voltvids First, thank you for such a prompt reply. I have found your videos on VCR repair to be superb and I applaud your efforts and work. For some reason, despite all my attempts to get this SVL-676UC to return to a working condition (strangely it was working but had the broken blue gear when it came in but otherwise all the controls, etc. worked - now NOTHING works - it loads the tape but then it just either sits there or tries to retract the tape but doesn't do that entirely and then just shuts off - and this is AFTER I cleaned the encoder switch (but the performance was the same before I cleaned the switch)). I keep wondering if there is something ELSE that needs to be done after removing the circuit board to gain access to the blue gear to "reset" something but for the life of me, this has me puzzled. The transport is otherwise exactly the same as the 555, 315, and some other models (595, maybe others). This HAS to be something electronic. Also, for some reason, the slide is now shifted out of alignment and it won't move -- it meshes w/ a red gear (maybe others) but I can't find a way to turn a gear and get the slide to re-align w/ the holes in the plate. I have two of these 676 models but one has a shot (frozen) capstan motor. Can the motor be replaced w/o having specialized equipment to realign the A/C head? (I know that exact positioning that head is a critical assembly point) Thank you again for your reply and maybe some day if you get your hands on the 676 you may be able to do a video on that too since maybe there are some points re that machine that are unique and could help others. I think it's a great machine -- if only I could get it to work! Kind regards -- Phil
@12voltvids9 жыл бұрын
drcoolit Sounds like a mechanical alignment issue to me. You will have to pull it apart and line up all the timing holes, and have all the levers in the correct position so they will drop into the cam ear groove.
@alvaronoel50818 күн бұрын
How can make contact with you my friend!!! Could you please fix my Dad vcr!!! Please!!!
@kgsalvage63066 жыл бұрын
Hi Dave, Decided to work on a slv 575 that I got. I went over everything just as you did. This one has blue gear and blue grease. I cleaned the encoder switch. Made sure all the connectors in place when I put the circuit board back on. When I first tried it, the tape loaded, pulled the tape around the video head, but the pinch ruler cam did nothing. I think that's all free now, but now it won't load the tape at all. Any Thoughts?
@JR-kq8rn6 жыл бұрын
How I can contact Dave for a problem similar to yours
@kgsalvage63066 жыл бұрын
JR I'm not sure . I was hoping he would reply . I hate bothering him too much . I know it's hard to tell when you're not actually looking at it . I really was careful and made sure all the plugs were in correctly . No it doesn't load the cassette in at all . Evidently the loading motor isn't coming on . The wire from it goes to the circuit board near the encoder cam. I haven't gone any further yet. If I figure it out I'll let you know . 😆⏰
@Kanalie200610 жыл бұрын
I really like your vids! Keep it up Dude!
@williamhouck93416 жыл бұрын
Could you tell me the part name/number of the Molykote lub you used in the video. Thank you.
@mrfredchew8 жыл бұрын
Could you do a video on replacing the capstan bearing? The one on my machine is squeaking. Thanks. ?
@12voltvids8 жыл бұрын
+Fred Chew Sure. Will do one to show Re - Re bearing.
@mrfredchew8 жыл бұрын
I picked up a Sony SVO-2000 SVHS vcr. The problem is when I hit play, it fast forwards. All other functions like rewind, stop, eject, and pause work. I cleaned and aligned the pinch roller assembly, mode encoder switch and slider plate, but it still fast forwards when it should be playing. I have noticed that there is video when it is fast forwarding ---much like it was cueing. I am at a loss and need your expertise. Thank you in advance.
@adaboy4z4 жыл бұрын
Sony SLV-AV100 gives code: 1L 117C 2? My tape won't come out...
@Oerg8667 жыл бұрын
hey I have a question, what would you say is the first place to look if a (S)VHS machine developed a lot of chroma noise recently? (as in blacks aren't black but have big red and blue sort of specles on them)
@12voltvids7 жыл бұрын
If it is only when playing SVHS tapes then look to the comb filter, it is it on both VHS and SVHS I would look at the power supply
@Oerg8667 жыл бұрын
Thanks for the reply, a few caps in the PSU did the trick.
@johnny14088 ай бұрын
I have a question when you realign the tape guides do you disable auto tracking and manually move it to the centre on the onscreen display then realign the head Rf signal
@12voltvids8 ай бұрын
Yes turn it off.
@johnny14088 ай бұрын
@@12voltvids Thank You. I find your videos very interesting. Im in Plymouth UK. Merry Christmas
@johnny14088 ай бұрын
@@12voltvids have you got any tips on a dim display on a Sony SLV 715 Vidro recorder. I have exchanged the complete filament from a doner unit which is better but could be better. Do you put a small AC voltage across the filiment terminals to burn off bad deposits or is there a capacitor which needs changing on that detachable board as there is 3 under the display itself
@12voltvids8 ай бұрын
@@johnny1408 if the supply viktage us correct and the display is dim then it's the display tube. No you can't burn anyyhing off the filaments. There is nothing to burn. Burning requires oxygen and the tube is under vacuum. Most likely the vacuum is slowly failing and when gas gets in the tube stops working.
@johnny14087 ай бұрын
@@12voltvids Hi agian I have finally got my Sony SLV 815 working and plays pre recorded tapes with very good hifi stero sound and the picture ive managed to get very good without a scope, but the problem i have now and its only a small problem i hooked it up to my tv but i only get stereo hifi sound in LP mode when i record and when i record in SP i get perfect sound but,,, not in stereo although picture is perfect on SP and LP
@ounkk3gamer2706 жыл бұрын
Hello I have Sony vcr slv-x55me, I'm looking for its power supply, its number 1-413-671-12 HS-328SF 1Z87, if you don't mind, can you lead me to one of it? Thank you
@Oerg8667 жыл бұрын
I'm sorry to bother you again, I've got an identical unit to the previous one (Panasonic AG-7350) with a control head issue (it seems). Tracking control on the front inoperable, tracking is unstable and goes all over the place (good-> bad-> good -> etc.). Tape counter doesn't run (Pretty sure I've seen this symptom even on your channel before). Tape path is good. RF packets decrease and increase in amplitude very evenly. Not an issue with PSU or video modules for sure. Anything I could try that isn't AC head replacement? :/
@12voltvids7 жыл бұрын
Scope the output of the AC head amplifier. Just follow the wires from the AC head and see where they plug into the board. There is usually a test point around there to give you the output of the ctrl head.
@Oerg8667 жыл бұрын
I checked on my scope and compared it to my working unit. My working unit has a nice steady pulse to low that goes with the head switching signal, while the broken one has absolutely nothing, it's stuck on high.... Going to trace that signal and see where it comes from. Thank you.
@Oerg8667 жыл бұрын
12voltvids Found a faulty cap in the control head amp. All good again! Thank you :)
@robertmattison12827 жыл бұрын
Do you think Vaseline is okay to use for VCR lubrication. Thank you for making and posting this video.
@12voltvids7 жыл бұрын
Robert Mattison definitely not. use the correct lithium grease.
@tryingtobarefruitinoldage98785 жыл бұрын
Can i just use white sewing machine grease
@boonlertkumpiranont18222 жыл бұрын
Can buy again
@janedoe-ri3vj9 жыл бұрын
Where is the sound part ?! Or I must change the hole motherboard ?!? Maybe is just a fried transistor or something like that...because I have a flame in the power supply unit (vcr) when I hit the power buton! and afther that no sound and no activity led sound , not even in the phones jack! The rest is works fine,but no use without sound !
@packratswhatif.39905 жыл бұрын
Dave, just off hand, is there anywhere we can source one of those Alignment Tapes ???
@vdochev4 жыл бұрын
From what I understand, he's just using a pre-recorded tape so any official movie you can buy on VHS will work.
@israelmejia69710 жыл бұрын
We're van I get a VHS copy of the rippingtons recording you have?
@12voltvids10 жыл бұрын
I downloaded it off youtube.
@josephvarju12294 жыл бұрын
is Sony the only one used that lubricant ?
@12voltvids4 жыл бұрын
No
@LiveSteamMad9 жыл бұрын
Ahh I see, you used an IWATSU SS-5705 Oscilloscope. I always wanted a 'scope. Maybe I'll get one soon. I'm enough of a geek to justify one LOL.
@12voltvids9 жыл бұрын
Yes it is 31 years old now. I bought it is 1984 when I first entered the electronics repair business. Paid 1500.00 for it, and it still works as well as it did when new. Comes in handy for some repairs.
@imandeepbadhan3 жыл бұрын
How to run vhs without vcr
@vhsmies39903 жыл бұрын
👍
@TheVideoGamesHistorian10 жыл бұрын
Keep it up
@shaun91077 жыл бұрын
video saved
@buretehudesi3 жыл бұрын
sony didn't make vcrs before 1989??? how?
@12voltvids3 жыл бұрын
Where did you get that? Sony has been making VCRs since the early 70s. They invented the VCR. It was the u-mstic 3/4". Sony has been making half inch video recorders since 1965 I have one it's real to real. Their first consumer VCR was introduced in I think it was 1975 it was a betamax. They were also one of the three companies working to develop VHS along with JVC and Matsushita. It actually when Sony was working with the other two on a home video format the early designs were cast off as not good enough by Sony standards and Sony thought everyone was on board with beta when they launched it and then JVC stuck a knife in their back and launched VHS which was one of the formats that Sony had worked on with them and had been cast off early as being inferior as far as picture quality went. Sony changed the VHS in the late 80s when they finally admit that beta was dead.
@buretehudesi3 жыл бұрын
@@12voltvids ok, now i understand. they ware no making vhs but betamax instead.
@12voltvids3 жыл бұрын
@@buretehudesi yes correct Sony made only betamax until they released the slv555. They tried hard with beta I did have a better picture the VHS and it did have at one point over 40% market share here in Canada but in the end there were a few factors that killed beta one was video stores not stocking movies in beta format that was the biggest nail in the coffin was video stores only stocking VHS. In areas where independent stores carried both beta and VHS beta recorders did quite well but in areas that video chains set up and only stocked VHS that was a death sentence for beta. Beta did however become the de facto broadcast standard and all the TV stations we're using the professional beta not the professional VHS and the pro market is where Sony made their money where they could sell a VCR for $30,000 or more and a camera for 40 Grand or more so beta did make Sony tons of money the consumer version was there for the purest that wanted the best at home recording picture quality but in the end VHS won out. People wanted long recording times and just didn't care about the picture quality which is too bad because beta did have a better picture it always did and had it not being bad marketing initially by Sony they could have stopped VHS dead in his tracks.
@NadeemSafi-pd4tm Жыл бұрын
My vcr reper please
@eman594617 жыл бұрын
sony really is funny its a good brand for most things but they KDL tv tab bond then Tcon board goes bad . Replaced AS15F chip with something more reliable. Got a video on that too.
@dawidkurdziel89316 жыл бұрын
OK
@alvaronoel50818 күн бұрын
You are amazing !!!! Thanks for all yours videos!!! I have a Panasonic Pv 1730 hifi .. the drum head it’s make noise and vibration.. please can you fix it ? How I can make contact with you? Thanks again
@12voltvids8 күн бұрын
A 1730 with a noisy drum. Bearing failure is the problem. You cab open that top and remove an e clip which will allow you to lift the entire cylinder off to reveal a big rotor magnet and stationary stator coils on the bottom. You can oil the bearing shaft and it will work for awhile. I did this with thus one when I first got it but it eventually seized up and I had to bite the bullet and change it.