Oscilloscope Telequipment D1011. missing traza CH1
I have a Telequipment D1011 oscilloscope that lacks the trace corresponding to channel 1 (CH1) and I would like to repair it. I have little knowledge of the oscilloscopes, and I wanted to know if there is a (flow diagram), for example as in the (Tektronix oscilloscopes), for the repair of this Telequipment D1011 oscilloscope, since I do not know where to start checking.
I also need help to try to repair it.
Greetings.
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