Hi All,
Please help me with HAMEG HM303-6 service manual
I have some problem with Old Hameg HM303-6 and looking for service manual. even try to get help from Hameg/R&S customer support but unfortunately...
I find only the Hameg 303-5 service manual on the internet space but this model have quite a different schematics.
The problem with my Hameg is CRT, No beam/image. everything else seems like works.
And without the schematic I don't want to risk with measurement in HV part.
I tried to change Optocoupler CNY17-2 which is on the power supply board, but nothing changes, Checked all transistors in the power supply and CRT board. seems like they all is OK.
No burned components, "cold soldering" problems, or any other obvious defects. Anyway I need service manual or schematic for Hameg HM303-6 model. Guys if you have idea where can I get service manual for HM303-6 please share I will appreciate that.