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damaged OCXO Marconi 2022D
Opened top part of rf generator. At left rear corner is damaged TCXO oscillator 10 MHz. The TCXO issued no signal. At right is processor board.

On entry processor board was no takt signal for CPU. The TCXO had no output signal, however power supply was OK. Sometimes, usually after a long time the TCXO started and generator initialized quickly.