I'm a little out of my depth with this one but lets give it a shot anyway! Complaint of calibrator and S-meter not working and not receiving signal.

CAUTION do not work on mains operated device unless you understand the risks and how to do so safely.

Tools I use -

Soldering
Quick 861DW hot air station
GVM H3 soldering station

Multimeter
RMM760D - can be found under many name badges

Microscope
Luzky Zoom 3.5 - 90x simul-focus single boom stand trinocular stereo microscope
Camera - Lucky Zoom HD 14MP

Oscilloscopes
Siglent SDS 1102CML 100MHz 2CH
Philips PM 3305 35MHz 2CH

Function generastor
FY6900 (many brand names)

Thermial imaging camera
FLIR ONE PRO on android

Bench supply
Powertech MP-3086 0-30V 3A

TL866II PLUS universal EEPROM programmer