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Sys 7 blanking problem?

Balazs

Site Supporter
5Years
Joined
Oct 19, 2019
Messages
454
Location
London
Hello
I just want to ask what is your opinion about this problem. My guess is something wrong with the blanking signal. I ve replaced 2 transistors and the 555 timer and a 1mfd capacitor. After this the blanking voltage went to normal before was 2.2volts
Ic 18 leg 4 is ok pulsing but if I check the signal by the driver board pin 37 it looks strange for me. Also the relay on the driver board clicking every 10 sec.
It was a totally dead mpu.
Im try to learn this hobby for myself. So would you be kind and check this video and tell me what is your thinking.
Thanks in advance
 
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