problems with my tektronix 2465 , when power on trig'd is blinking and - minus led on , pressing A/B trig all the front panel led will off
crt shows only 1 trace but incomplete and some dots , only vertical pots working movig the partial trace , all voltages are perfect.
checking at first in A5 board looking at clock section seems not correct waveforms.

schematic waveform TP

number 1 , frequency is ok but amplitude is less than expected and waveform different shape

number 2 , here the same ..smaller amplitude but atleast similar waveform

number 3 , here totally different waveform of what expected , the timing maybe ok

alredy replaced the 74ls04 , tought failing but no changes , hope someone can help me to fix this.