12-26-2016, 11:28 PM
How do the voltage readings on the collectors of TR 705 and TR706 compare to those shown on the schematic in both auto-magic positions?
As far as I can see, the circuit should work fine with 300 ohm resistors across the leds for PL5 and PL6 unless there is a problem with one of the transistors being leaky or not completely shutting off. Also check the base voltage on TR705 and TR706 in both auto-magic conditions.
There is another lamp PL7. Did you replace it with a led and bypass with another 300 ohm resistor?
As far as I can see, the circuit should work fine with 300 ohm resistors across the leds for PL5 and PL6 unless there is a problem with one of the transistors being leaky or not completely shutting off. Also check the base voltage on TR705 and TR706 in both auto-magic conditions.
There is another lamp PL7. Did you replace it with a led and bypass with another 300 ohm resistor?