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PostPosted: 27 Jul 2016, 16:23 
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Joined: 25 Sep 2009, 15:44
Posts: 44
Hey all,
I have a circa 1973/6 Rotel RP-1500 turntable that I am currently renovating. Although I am capable with a soldering iron, can follow schematics, I don't actually fully understand how components work and affect each other.....I would class myself as a "board stuffing over achiever"!!

There is an issue with the TT; when the circuit providing power to the motor is closed and the motor is running, the strobe light< (L0001), goes out, this should not happen, but, if the circuit to the motor is open, the strobe illuminates, as it should do, (constantly). I'm thinking possibly a grounding issue, but as a novice I'm not really sure.

I am intending to replace all resistors and caps with better quality/tolerance ones, but I'm pretty sure that won't cure the problem as the lamp lights when the motor circuit is open.....

I include the schematic for the TT and hope that some of you more knowledgeable folk could take a look and point me in the right direction!! :up:

It has the E type power trans strapping - 220/40V 50Hz;


PostPosted: 29 Jul 2016, 16:46 
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Joined: 04 Jun 2008, 20:59
Posts: 4310
Location: Arizona, USA
Hi, The best source for information on turntables is at the forums. Lots of friendly helpful folks there (just like here).

Good listening

Some of my DIY Tube Amplifier Projects:

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