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GRUNDIG cuc1824


Guest valoy75

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Guest valoy75

Buna!Probleme din decodor ptr.ca apare imaginea din ce in ce mai greu. Am pus o rezistenta la TDA4686 de la pin 26 la u12v si acum apare imaginea cam la 3,4minuta fata de 1ora si ceva.Stie cineva cam despre ce e vorba? :jytuiyu Multunesc anticipat!

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Guest valoy75

Desfa catozii din circuit si pornesti TVul.Masori ce tensiune ai pe fiecare catod si tragi o concluzie.

Tensiunile pe catozi sunt:113v,126v si 129. E de naspa?
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Guest valoy75

Asa si asa.Cu un aparat de regenerat l-ai scoate la capat.

La tv alb negru regeneram tubul cu propria tensiune de inalta(alimentam filamentul;katodul si un picior de la filament al puneam la masa si apropiam inalta de pin 1 al tubului;parca asa ceva) dar aici cum improvizez un montaj? O schema ceva?
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