UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Sony TA-1010 noisy phono circuit

dave cox · 5th Dec 2022, 5:38 pm

Although ...
This does use use transistors KNOWN to sometimes go noisy / bad in the RIAA Eq stage. No problem if this is the case, it can be fixed for a few pennies

I would think the 'phones output', with the volume turned down as low as it will go (on the walkman), should not overload the input. As already mentioned, the RIAA Eq will make it sound rather unusual, like you turned the treble to maximum and the bass to minimum. Having said that, some digital amplifiers (in the walkman) don't play nice if they don't have a low enough load impedance but the better brands work just fine ...

dc

5th Dec 2022, 5:38 pm	#11
dave cox Nonode Join Date: Jan 2009 Location: Bristol, UK. Posts: 2,062	Re: Sony TA-1010 noisy phono circuit Although ... This does use use transistors KNOWN to sometimes go noisy / bad in the RIAA Eq stage. No problem if this is the case, it can be fixed for a few pennies I would think the 'phones output', with the volume turned down as low as it will go (on the walkman), should not overload the input. As already mentioned, the RIAA Eq will make it sound rather unusual, like you turned the treble to maximum and the bass to minimum. Having said that, some digital amplifiers (in the walkman) don't play nice if they don't have a low enough load impedance but the better brands work just fine ... dc