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-   -   Restoration of my Technics SL-Q33 (http://www.hifivision.com/phono-turntables/45178-restoration-my-technics-sl-q33.html)

reubensm 22nd July 2013 02:49 PM

Re: Restoration of my Technics SL-Q33
 
I think this is the right spirit of our lovely forum. I had a similar experience with Mr.Kuruvila Jacob who readily sent me a ceramic cart and refused to accept any money for it. Ceramic carts are incidently more expensive than magnetic carts in the international market. Salute both Mr. Kuruvila and Hiten.

AmitKumar 22nd July 2013 04:31 PM

Re: Restoration of my Technics SL-Q33
 
I would suggest you to discard the idea of making a dustcover of glass. It will be very heavy and will be risky to handle. somehow i am always scared of glass.

about 1.5 yrs back i was trying to buy some thicker good quality acrylic sheets for use in interiors in my home. later i discarded that idea. i think they may serve your purpose.

Regards, Amit

Saket 22nd July 2013 04:47 PM

Re: Restoration of my Technics SL-Q33
 
Quote:

Originally Posted by AmitKumar (Post 513368)
I would suggest you to discard the idea of making a headshell of glass. It will be very heavy and will be risky to handle. somehow i am always scared of glass.

about 1.5 yrs back i was trying to buy some thicker good quality acrylic sheets for use in interiors in my home. later i discarded that idea. i think they may serve your purpose.

Regards, Amit

Yes Amit, your pointers are correct. I will try to get it made from acrylic sheets, provided I get people to work on that. That will definitely be better choice than glass. Lets see how does this unfolds.

Quote:

Originally Posted by AmitKumar (Post 513368)
I would suggest you to discard the idea of making a headshell of glass.

I am sure that you meant a dustcover!:)

Regards,
Saket

Hiten 22nd July 2013 05:30 PM

Re: Restoration of my Technics SL-Q33
 
Saket and Reuben
aare baba you are embarrassing me. I have gained more from the members than I have given.

There are number of members who are giving selflessly just for the love of this hobby. For ex. Sachin has given me MM phono kit without taking any money. I wanted to mention that in separate thread when I had completed that DIY kit, but since you all have mentioned just my name I think this is the right time... So to all those wonderful people thanks and hats off to you.
Regards

AmitKumar 22nd July 2013 05:45 PM

Re: Restoration of my Technics SL-Q33
 
Quote:

Originally Posted by Saket (Post 513374)
Yes Amit, your pointers are correct. I will try to get it made from acrylic sheets, provided I get people to work on that. That will definitely be better choice than glass. Lets see how does this unfolds.



I am sure that you meant a dustcover!:)

Regards,
Saket

Yes Saket,

I meant dustcover only. dont know why i wrote headshell.

Regards, Amit

reubensm 22nd July 2013 06:25 PM

Re: Restoration of my Technics SL-Q33
 
Was wondering how a perspex headshell would look on a Technics Turntable. Interesting concept actually, giving it a thought, it may look quite dashing but radical of course.

Saket 22nd July 2013 06:30 PM

Re: Restoration of my Technics SL-Q33
 
Quote:

Originally Posted by reubensm (Post 513403)
Was wondering how a perspex headshell would look on a Technics Turntable. Intesting concept actually, giving it a thought, it may look quite dashing but radical of course.

Also, may be better in terms of resonance than metal!

Saket 23rd July 2013 04:32 PM

Re: Restoration of my Technics SL-Q33
 
Could not work much on the player in the last 2 days. Will try to compensate tonight.

Saket 25th July 2013 02:31 PM

Re: Restoration of my Technics SL-Q33
 
Okay Friends, here is the big one: The Player is UP & SINGING:clapping::yahoo:

Last night marked the last & equally critical time of the restoration of my turntable; and I am very glad to share that everything went on pretty fine and my continuous sitting from about 09:30 PM to 4:30 AM paid off!:cool:

I was not able to work on the TT due to some other household commitments for the last 2-3 days. Hence all parts had no option than to wait to get in their new skin. Neither I wanted to rush into the job, I had decided that there will be no hurries. Until I get proper time to give it to the tt, I won't sit with it. The TT deserves your time, isn't it?:)

After a light dinner, I sat among the components and flipped the dustcover and put the tt (inverted ) on it. Decided to mount the tone arm base and the tone arm first of all. The arm-rest that I broke while dismantling the TT, was fixed well with araldite but my sincere thanks to Hiten bhai for sending his Sansui's arm rest to me after taking the trouble to dismantle it.

The tone arm base was mounted by 3 screws, so that was not the problem. The tone arm bearings were lubricated with high quality engine oil and assembled into the base. The anti-skate spring was fitted on the slit. The process to fit the tone arm was not too tough to be frank, but the pictures which were taken while dismantling the TT came as great help, there is no doubt about it. Not tough but not easy too.

Then the electronics, i.e.. the main board, transformer, IR LEDs, mosfets, switches, etc. were put back in the system. Funny enough, somehow I forgot to put the strobe lamp lens back, for which later I had to again open the board to put it back.:o

After these electronics were put back, the plug in connectors for opto sensors, Arm drive, remote control (yes, the model supports a wired remote control), etc. were plugged back: piece of cake!

Then the tough one, the automatic mechanism. The 3 opto-sensors were fitted back in place, I knew that they would need calibration, hence left them a little lose. They are anyway mounted on springs for adjustments. Then the electro-mechanical switches, which get pressed (& hence activated) one by one by a rotating pulley were put back; again to be calibrated later.

All mechanicals were lubricated well before putting back. The rubber pulleys ( 2 nos.) were slightly sanded to have better contact. The tone arm wires are very delicate. The outer insulation were burnt with soldering iron to uncover the conductors which were soldered back cleanly to the mini-tone arm board, including the earth (black) signal wire. Wire route was properly set in the channel provided in the board and proper tension for sagging was allowed.

Then the TT was turned upright to check if things are acceptable for the stage 1 of testing! The platter turned at the correct speed, though I forgot to put in the strobe lens, but the strobe leds signalled that the rotation is at correct RPM. Coming to automatic mechanism, the tone arm ascended but descended little short of the LP record. Not bad, that is adjustable, and was adjusted to correct runway to descend.

But the auto return and auto-stop were not working at all. The 2 electromechanical switches were calibrated a few times along with the opto sensors, and bingo, everything started working. In fact, my cue button used to malfunction everytime it was used. In the proces, I had cleaned all the switches with alcohol sprays, after which even the cueing button came to life:D The headshell was changed to original one sent by Hiten bhai and the original feet too.

SO, the TT was carried back to the cabinet and attached to the amp. It sang for the first time at about 4 in the morning! Everything nice, listened it in the morning too, everything is good. The cartridge was aligned.

Also, I used to get terrible feedback previously, but the original feet have very good dampers which have reduced the feedback & probably eliminated it (subject to some further high volume testing)

So, finally I am as happy as a pig in a slop:D Pics to follow in the next post.

Thanks for indulging here folks!

Regards,
Saket

reubensm 25th July 2013 02:55 PM

Re: Restoration of my Technics SL-Q33
 
Perfect job, awaiting the pics....now you're into the secret, with a little bit of effort, patience and with a systematic approach, restoration is never as difficult as it seems and is great fun!!


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