Thursday, December 15, 2005

Riparare una TV con un phon...

... e senza neanche sacrificare quest'ultimo in onore della causa.
E' si, ora la TV funziona. Ieri passandoci davanti l'ho vista sola e sconsolata, così ho pensato due secondi a cosa potessi fare per ripararla... Un flash! <<Se usassi il phon per riscaldare singoli settori delle schede potrei accellerare i tempi di "surriscaldamento" del componente difettoso così da individuarlo più facilmente e poi operare con il tester>> mi sono detto.
Così l'ho aperta, e appena accesa aveva immagini in bianco e nero... ma sono subito tornate a colori (Strano!). Comunque, visto che c'ero mi sono messo a riscaldare un pò tutto... E per tutta l'operazione è rimasta a colori. Così ho ripassato un'altra volta, ed è rimasta a colori ancora.
Non volevo crederci così l'ho lasciata accesa per un paio d'ore. E' resistita ancora.
Ho pensato: <<Troppo facile>>. Così anche oggi l'ho lasciata accesa per un'oretta, e l'immagine è rimasta a colori.
Quindi penso sia successo questo: con il mio nuovo (e potentissimo) phon, oltre ad eliminare gli ultimi residui di polvere, avrei potuto anche inavvertitamente risaldare (se non proprio risaldare, riportare a contatto) l'eventuale saldatura non perfetta.
Questo ha ripristinato l'usuale funzionamento (Ovviamente legge di Murphy permettendo).

75 comments:

Antonio said...

Sei proprio un genio della riparazione (come avevo scritto qualche decina di post fa)! Del resto, era ovvio che il tuo phon, che usi per ore ed ore al giorno per sistemare i tuoi preziosi capelli :) , avesse poteri miracolosi nei confronti della povera TV che da due mesi aspettava di essere sistemata...

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