[Moved] repair oscilloscope goldstar os 9100d

[Rosidi Husin]

I try to repair my oscilloscope but i don't which area i want to check low supply ok.please somebody can help me.

 

[betwixt]

That looks like a fault in the X deflection amplifier. Do you have a service manual?

What happens when you turn the X position control or select different timebase speeds?

Brian.

 

[Rosidi Husin]

Tq your reply...x deflection amplifier u mean horizontal?.When turn x position waveform can't move to left position and can't move to upper position and intersity vr no much funtion.I have service manual.

Rosidi.

 

[pplus]

.When turn x position waveform can't move to left position and can't move to upper position and intersity vr no much funtion.
Rosidi.

It's more like a fault in the power supply.

 

[D.A.(Tony)Stewart]

Flyback HV and X deflection are affected. something may also be affecting Z blanking during retrace.