RXRL-NV/2 Technical and Maintenance Manual
R.V.R. Elettronica S.r.l. (Bo)
Pag. 77
6)
Estrarre la scheda con molta cautela.
4.11 SOSTITUZIONE DELLA IF 70MHz CARD
1)
Togliere il coperchio superiore della macchina.
2)
Disconnettere i connettori del Front-End, del Mixer, del Doubler
e togliere il coperchio della scatola metallica che protegge la
scheda Audio Process e la scheda IF 70MHz.
3)
Annotare la posizione dei vari connettori della scheda Audio Process
e della scheda IF 70MHz.
4)
Disconnettere i connettori CN1, CN2, CN3 e CN4 della scheda Audio
Process e i connettori CN2, CN3, CN4, CN5 e CN6 della scheda IF 70MHz.
5)
Svitare i dadi di fissaggio della scheda IF 70MHz.
6)
Estrarre la scheda con molta cautela.
4.12 SOSTITUZIONE DEL V.C.O.
1)
Togliere il coperchio superiore della macchina.
2)
Disconnettere i connettori CN3 e CN4 della scheda P.L.L. e il
connettore che collega il Doubler al VCO.
3)
Dissaldare il filo dell’alimentazione.
4)
Dissaldare il box che protegge la scheda V.C.O. dal suo coperchio
inferiore.
5)
Estrarre il box che protegge la scheda V.C.O..
4.13 SOSTITUZIONE DEL DOUBLER
1)
Aprire il coperchio superiore della macchina.
2)
Disconnettere i connettori CN1 e CN2 del Doubler.
3)
Dissaldare il filo dell’alimentazione del Doubler.
4)
Svitare il Doubler dal coperchio metallico della scheda Audio
Process e della scheda IF 70MHz.
5)
Estrarre il Doubler con molta cautela.
4.14 SOSTITUZIONE DEL FILTRO CAVITA'
Содержание RXRL-NV/2
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