Tv Sharp 21DF251 rusak TR Horizontal TT2140

Tv Sharp 21DF251 rusak TR Horizontal TT2140

Jangan heran bila tv ini mati total walau kemaren masih bisa menyala.
Anehnya kata empunya tv tiba-tiba mati saat pertama dinyalakan.
Sampai kabel AC cord jadi sasaran. Ini pengalaman yang saya dapati.

Dalam kasus seperti ini memang agak aneh karena dengan penggantian TR yang sama atau dengan persamaan akan terulang kerusakan yang sama, yaitu tiba-tiba mati saat pertama dinyalakan.

Karena keterbatasan alat maka saya hanya bisa menduga-duga saja apa penyebabnya sehingga ada yang harus diantisipasi sebelum mengganti TR horizontal yang baru.

Ganti C719 filter VCC STR W5453 karena bila c tsb mulai kering berakibat melonjaknya tegangan B+ yang seharusnya 125v bisa naik menjadi 150v dan kadang travo ada suara berdenyit.



Cek tegangan Travo drive horizontal minimal 12v dan ganti elco C610 220uf 25v karena bila elco mulai kering akan mengakibatkan TR horizontal cepat panas dan short.



Ganti C643 470uf 16v karena ini adalah filter 8v suply IC Chroma termasuk Oscilator horizontal dan vertikal.


Dan bila langkah-langkah tersebut telah dilakukan mudah-mudahan tidak akan terulang lagi kerusakan yang sama.
Sekian dari saya semoga bermanfaat.

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