Hi folks,
I started to repair a Hameg 5005 Spectrum Analyzer which has no trace on the screen.
So I started with the power supply.
Up to now, I fdiex the +12V replacing a TL082 op amp and a TL431 regulator.
All low voltages are ok now, but I have a problem in the HV.
When I start to follow the schematics I fund D1557 (smd type) marked with a *.
I looked everywhere in the other sheets od the manual and there is no mention to it.
Can anybody figure out which diode is it?
It seems to be a zenner diode, so what voltage?
Thank you in advance for the help.
Roger