J
J.Oppermann
- Jan 1, 1970
- 0
Perhaps anybody has some experience with the "older" TDA3565.
I have the datasheet, but that's a bit too brief for me as I happen to have not
too much experience with TV-Electronics.
In the "S-Video to RGB Converter" where the IC is used the TDA3565 gives no RGB
output anymore. Only about 1.5V DC on Red. It gets quickly quite hot (about
50-60°C I'd estimate) even though the datasheet says sth about 1W power
consumption, it makes me considering a damaged IC...
The adjustment voltage on pin 6 (contrast - actually 1-4V) is pulled down to
about 0.5V. I was wondering if this might indicate a damage of the IC, or a
feature that might be some kind of output protection.
Before the RGB output "vanished" I got a very dark picture (voltage on pin 6 was
already "pulled down").
Funny enough, as I disconnected the poti from pin 6 to check if it was providing
the correct voltages (i.e. 1-4V) - which it does. Suddenly the input on pin 5
(saturation) pulled the voltage down to 0.5V instead.
maybe somebody can give me some advice?
TIA Jo'
I have the datasheet, but that's a bit too brief for me as I happen to have not
too much experience with TV-Electronics.
In the "S-Video to RGB Converter" where the IC is used the TDA3565 gives no RGB
output anymore. Only about 1.5V DC on Red. It gets quickly quite hot (about
50-60°C I'd estimate) even though the datasheet says sth about 1W power
consumption, it makes me considering a damaged IC...
The adjustment voltage on pin 6 (contrast - actually 1-4V) is pulled down to
about 0.5V. I was wondering if this might indicate a damage of the IC, or a
feature that might be some kind of output protection.
Before the RGB output "vanished" I got a very dark picture (voltage on pin 6 was
already "pulled down").
Funny enough, as I disconnected the poti from pin 6 to check if it was providing
the correct voltages (i.e. 1-4V) - which it does. Suddenly the input on pin 5
(saturation) pulled the voltage down to 0.5V instead.
maybe somebody can give me some advice?
TIA Jo'
