Quote:
Originally Posted by Ed in Tx
On the AG-1800/VR-HF600 there should be a belt from the capstan motor to the reel clutch pulley. IF I remember right.  I guess I could drive over to the old shop, dig out the service manual and verify it. But I won't. Not that big a deal. |
I can assure you there is no reel belt use for this chassis at all. 100% guaranteed. I guess it's been a long time for you to remember. Unless you mean to say the idler drive tire or the capstan belt.
This is what the chassis looks like. The company didn't have this one before, but I e-mailed this to the owner three years ago to create a kit for this chassis.
http://www.studiosoundelectronics.com/mbk-121.htm
The pictures came from my NV-H70PX unit. There's 3 belts total for 1985 models, and 2 belts total for 1986 models. It uses two idler tires. The drive tire inside (behind the main idler tire) is the most difficult tire to change ever found in a VCR (much harder than Mitsubishi's 1986-1989 chassis that many technicians claimed).
To change the drive tire, you need to remove the two ring retainers (ouch) to remove the two brakes, then remove another two ring retainers (ouch ouch) again to remove the two reels, then remove one ring retainer for the right reel brake, then you remove a small ring for the drive gear, then you remove a small ring again for the drive idler, then you use a knife (yes) to cut and scratch the old drive tire out (you cannot and it's impossible to remove it out by hand), then you push and squeeze the new drive tire in with your hands by force, and then you put everything back together and put in all the nasty ring retainers again by making sure you don't push it down all the way (or the part doesn't move). If you push it down all the way, you will need to lift the part up to lift the ring retainer up. Sometimes you lift it up too much, and you need to push it down carefully again. It's a very nasty and unbearable process. I wonder what the owner of this website will say about this.
Quote:
Originally Posted by Ed in Tx
Does testify to the quality of the mechanism in some of these old machines, just replace a few worn parts and good to go for thousands more hours.
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Oh yes, especially if there's a linear power supply inside, so they go longer without service. That's the best feature here. If I own one with a switching power supply like all Panasonic PV-model VCRS, it will require more trips to the service (replacing caps, you know) than the one without it.