Re: VIC 20 without audio tone

From: fabry891 <fabrizio.vita80_at_gmail.com>
Date: Sun, 6 Jan 2019 11:37:43 -0600 (CST)
Message-ID: <1546796263469-0.post@n4.nabble.com>
>9VAC can be measured only between the two AC pins, that supply is just 
>a floating (i.e. not connected to ground) transformer secondary.

if I measure AC voltage between two AC pin the voltage is 10.5V.

>6561 are very expensive and by the way, are you only trying via a RF 
>modulator to a TV? RF modulators easily go out of tune and can produce 
>a way off sound carrier or transmit out of frequency between two 
>channels too. Your TV might be trying to autotune (and might also fail 
>at correctly auto-tune) or might even not try to tune to the correct 
>channel. 
>You can't conclude anything without trying how the audio sound 
>directly at the A/V connector. 
>PS: 6561 don't need to be programmed.
 
I tried to connect audio/video VIC20 to tv with either RF modulator either
Scart cable that I made connect the pin 3 of VIC 20 audio to pin 6 of scart
connector, with the same result.
I've found a 6561 for 25€, and the seller told me that if the issue doesn't
resolve can I give back and refunded.
What do you advise?
Thanks



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Received on 2019-01-06 19:00:03

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