Looking for the part number for a technics tape deck RS676AUS rewind idler, takeup and supply reels

Could be a dirty rotation sensor - this is simply a tiny piece of metal mounted under one of the hubs. This metal bounces a beam of light to a photoelectric sensor. As long it's moving, the machine will detect the pulses of light and allow the machine to run.

When that piece of metal gets dirty, it stops reflecting enough light to satisfy the photosensor and the machine shuts down after a few seconds.

The hubs should be held on by tiny plastic retaining rings - remove the takeup reel first and look at its underside. When you find the series of metal reflectors, simply dip a Q-Tip into household rubbing alcohol, clean them up and wipe them dry to keep any film from forming.

That might do the trick - good luck!

It's not seeing the takeup reel turning.
Either the takeup reel isn't turning or the takeup reel sensor has malfunctioned.
Check the belt to the takeup reel by doing a fast forward.
Will it fast forward? and is the takeup reel spinning during playback?

02-874 error code signifies a defective takeup reel. The reel is not winding the tape in, so the deck won't go through the eject procedure. Check the connection to the takeup reel motor; if that's OK, the motor itself may be bad. Rarely, the takeup reel motor assembly will need to be replaced; usually it's a connection problem.

Hi saabangerman

The unit sounds like it has a take up clutch or takeup idler problem. Check all the drive assemblies in the unit. Remove the cover from the front of the transport inside the cassette well, and check the condition of the idlers and reel base drives. The counter belt can also gatherup and prevent the takeup reel from working correctly, or fire the auto stop mechanism preventing it from playing, although that sounds to be ok in this case as the unit will FF and REW ok. The takeup drive is supplied by a different drive idler as it requires much lower and more controlled torque. This unit was always considered to be a great tape deck and is well worth a bit of attention for restoration. You can get a new belt kit for $19.00 from here

I am more than happy to answer any other questions you may have about it, just give me a hoy :) Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek

If you are seeing tape collect inside the unit, the takeup side is not functioning correctly. This may be as simple as a belt change or idler change. This is not a repair I would suggest that you start with. The alignment of the tape is critical to proper functioning. I would geuss that the "link support mech" is probably just the belt/idler assembly or it is a "mode" switch. In any case, this unit should be sent in for repair. As part of that repair, the conformance to industry standards.

Dan

I had sorta the same problem and I just fixed it. Mine was making clicking noises and jerking the tape causing speed variations and pitch changes, Uggghh. The FF, Rew, and take up functions are not belt driven like most decks. There is a little idler wheel between the motor and the take up axle. Take the whole transport assembly loose from the front of the deck...slide it back 3 inches . Take off the ground wire screw, and 3 screws holding the transport mechanism in place :...1 screw on top, 2 on bottom. Take the black front faceplate off of the drive...2 little screws. This exposes everything.The little idler wheel has a press on tiny,tiny piece of clear plastic holding it onto its little axle. Be hella careful. Use a tiny eyeglass screwdriver to pry it up and off. Dont lose it. Pull the idler wheel off. The rubber has hardened and slips. Pry the rubber rim off of the white plastic pulley using the tiny screwdriver. Put on an O ring that just fits. Scruff up the perimeter of the O ring with 220 sandpaper, Easy does it. Idler wheel goes back in, press on the little plastic retainer, put the black metal plate back on( 2 screws at top), slide the transport mechanism back into the front panel, secure with 3 screws, ground strap, replace cover. Clean heads, demagnetise, badda bing, badda boom.

You may have an idler gear wheel which has been damaged- perhaps broken/worn gear teeth or something afoul in it's drive mechanisms. Check this idler which sits down in between the supply and take-up spindles. You should be able to see this with no tape loaded. This idler should also move freely from supply to takeup- if it is sticky in movement this could be the problem. If your idler is broken, you may be able to replace it. Check with a service center- or a parts supplier. MCM electronics is one such supplier- there are others.

A couple of possibilities: 1. Braking problems: When VCR goes from FFWD, REW, Play to stop, there are a pair of "brake pads" engaged to stop the reels, and prevent tape spillage out into the machine. These pads, often rubber like, are on levers which contact one side of each reel. If you take the cover off the VCR, and look down where the tape is loaded, you will like see these brake assemblies. If the rubber pad is missing, or lever pivot points gummied up, then this is your issue. 2. Take up reel isn't being engaged to take up the tape on tape eject. When a tape is loaded into the machine, tape is pulled from the cartridge and threaded into play ready position. When eject mode is engaged, the tape must be pulled back into the cartridge, or you will have tape hanging out the front end of the cartridge, and may get caught on the VCR internals, or at least be mangled by the cartridge door. The often issue here is likely the idler assembly pivot point is sticky. This idler pivots, moving from the take-up reel (right reel) to the supply reel reel (left one), depending on what mode is selected. FFWD & play to the right, left for REW. If this idler is gummed up at it's pivot point, movement will be sluggish at best, and might not be engaging the right reel quickly enough to pull tape in before tape eject. This idler is sitting right between the reels down where the tape sits. A little light oil on the pivot point may be enough to loosen it up. Otherwise it might need to be removed and the old grease removed, and a drop or two of light oil applied.

I'm guessing the "black thing in side" is referring to the actual tape itself- ribbon like which can be spooled out of the tape case. If so, then your VCR may have a mechanical problem of some sort, which results in a "no tape transport" or "no tape takeup" problem. If the latter, the right reel (takeup reel) is not being driven. Older VCRs often used a small rubber rimmed drive mechanism to drive this reel. Newer VCRs (10 years old or less) pretty much use a gear drive. Something may be broken here, or perhaps the gear is stuck. This gear assembly has to swivel back and forth, from left for rewind, to right for takeup or fast-forward. Unfortunately, you can't see the gear once the tape is in the machine, at least not from the topside. Suggestion: Take the top cover of VCR off, look for this gear, and see if it swivels freely, look for broken gear teeth.