I tested the TP201-TP202 and TP3 test point waveforms.
Let me add,in parenthesis,Sometimes the three test points TP206, TP207, and TP208 seem to be able to induce failures,TP201-TP202 can eliminate faults,Because when my multimeter or oscilloscope probe triggers TP206, TP207, and TP208, I can clearly feel the fault reappearing.And when the test probe contacts TP201-TP202, the fault will disappear,I expressed my actual observation and feeling. I know it is magical, but this is the reality.
Sometimes the digital tube flashes "700",The voltage of TP3 test point is 0.893v, and the voltage of TP201-TP202 test point is 1.138v.At the input, I always connect a 50 ohm load.