Repairing a Hameg HM1008 oscilloscope

[Yamin]

Hi, I have done some recapping on the power supply on couple of HM1008 scopes. There is this one unit which when powered up all the lights on the front panel flashes and there is nothing displayed on the screen. What could be the possible cause for this, I haven't done any intensive troubleshooting yet. But I did check supply voltages at the other boards and it showed the correct voltages. I was able to get the service manual today but I couldn't find this error stated.

I have attached some pictures and I was hoping that you could help me identify the circled parts.
1. Photo 1
2. Photo 2 - there are two wires which one end of it doesn't seem to be connected to anything, what could these be? Referring to the manual the board is MB board, and the function of the board is to generate sweep(sawtooth)signals.

I also have a calibration question, I checked all the units (both channels) using a 1kHz square wave from a function generator. One unit displayed a trace similar to the picture attached (photo 3). Whats the name of the calibration which corrects this issue? For the probe I used  a one with a bnc connector and alligator clips on the other end.

[shakalnokturn]

PSU hiccuping could be due to an overload condition (scope), internal fault (secondary diode), remaining bad caps (primary side near PWM IC).

Photo 1: Thick film precision resistor. Could be on H.V. section but going by situation and markings it could be on one of the X/Y output stages. Sorry need more photos.

Photo 2: The yellow wires leading nowhere serve as cheap adjustable capacitors. Bend them away or towards resistor below to adjust a couple of pF. (Here appear to be in frequency response for one of the CRT output amplifiers.)

Photo 3: Incorrect frequency response but that could come from many places. Better know where you're going before working on that.