Messages

1

Reel to Reel Tape Machines / Re: technics rs-1500 maintenance help

« on: April 19, 2013, 07:21:20 PM »

I put up a video that we did a few years ago. Sorry for the poor quality, but it should get the message across:

http://www.youtube.com/watch?v=HfB8Y4dpRoM

thank you very much  this vaulable video, quality is superb !!!!!

regards

Alexander

2

Reel to Reel Tape Machines / Re: technics rs-1500 maintenance help

« on: April 19, 2013, 07:15:31 PM »

Hi Alexander,

Welcome to the forum.

Those selector switches are a common issue. Usually just need to be shot with some cleaner and worked.
Regarding the headblock, you can safely remove it by removing the 3 silver screws. The black ones are for adjusting the heads.
Once the screws are loose, just pull the headblock straight out. It has a multi pin connector on the back.
It shouldn't effect the heads unless you bump one of them. The guides immediately before and after the heads are also connected to the headblock so much of the alignment is self contained.
Installing the headblock is just the reverse.

It would be instructive if you could describe the problem you repaired and the transistors that you replaced to remedy the problem. In other words, what was the machine doing (or not doing) and which parts needed to be replaced.
I'm always interested to hear of problems encountered especially if they've been fixed.

hello

thanx for the tip.

as for the power supply failure.. the unit was completeley inoperative, I began to check the to220 transistors (and some alike) and found out that TR604 was faulty, replaced with a BD series transistor, and the machine begin to work. BTW I use a Atlas peak transistor checker (not expensive) , as I had the case with many transistors, that they check ok with the multimeter, but on the checker, they test as two diodes...

I will take apart the head switch, (it is broken), and keep on troubleshooting this unit, that according to my client, was sitting there for almost a decade

regards

alex

3

Reel to Reel Tape Machines / Re: technics rs-1500 maintenance help

« on: April 17, 2013, 07:00:28 PM »

hello, I am new to this forum, and apologize if this has been asked before.
I got a RS1506 for repair, after changing some transistors, the mechanism is working, with the exception of the tape speed switch, which I will be checking later. my concern is that the head switch is broken.
can I remove the head assembly without messing up the tape adjustment ? do the heads connect via a connector ?

any hint will be appreciated

regards

Alexander