help.. Tv polytron berderik

Discussion in 'Televisi' started by ariesjava, Jul 11, 2010.

  1. ariesjava

    ariesjava Active Member

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    ada pasien tv polytron minimax 14''.
    Kondisi baru nyala normal. Tp selang beberapa menit muncul garis2 horizontal tipis diikuti suara berderik.
    Kl didiamkan makin lama garis2 td makin parah suara derik pun makin jelas.
    Note: tv digunakan pd frek UHF (antena). Kl untuk AV tv normal2 saja.
    Kepada para master mohon petunjuk
     
  2. ariesjava

    ariesjava Active Member

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    up dikit...
     
  3. bralingtronik

    bralingtronik Well-Known Member

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    cobak solder ulang bagiaan IC vertikalnya, biasanya karena panas menyebabkan solderan pecah, dan ganti kapasitor di jalur di jalur vertikal bila melembung
     
  4. ariesjava

    ariesjava Active Member

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    oce bos. Tak tes dl. Mungkin kmaren kurang merata nyoldernya.
     
  5. tanto

    tanto Well-Known Member

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    POLYTRON berderik jg saya alami, sebelumnya horizontalnya rusak dan dah saya ganti, dan sebual elco 1uF/160v, setelah dicoba suara deritnya malah kuat. tp TR hornya bgs, apa penyebabnya ya, kemungkinan flayback rusak ada ga ya?
     
  6. zhozhox

    zhozhox Active Member

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    Coba srceen di playback dikecilkan dikit gan mgkn bisa over load:d:d
     
  7. bedoenn

    bedoenn Member

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    mudah mudahan gak salah..... mungkin di final power suplly udah mau mati boss...... jadi suaranya berderik....
     
  8. kang iya

    kang iya Active Member

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    regulator g beres gan. coba ganti dulu elko2 bagian regulator. klu semua elko dah ok. kmungkinan trafo inverter nya bos.
     
  9. ariesjava

    ariesjava Active Member

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    Angkat thread.

    Ampe skarang blm dpt solusi. Thx bwt bos2 d atas udah bantu. Meskipun blm tak praktekin. Soale ada kerjaan laen. Ni mo mulai utik2 lg.

    Tanbihun.
    Suara derik muncul di speaker audio bkn di mesin, diiringi gambar yg semakin kabur. Makin kenceng suara derik, makin hilang gambarnya.

    Any other solution?
     
  10. qrm

    qrm Well-Known Member

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    coba set kembali tegangan power suplynya atau ganti kapasitor elco di ps teg ke plybek
     
  11. ricky1790

    ricky1790 Well-Known Member

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    Coba tunernya bos (Sebelumnya ukur dulu tegangan di tuner, pas semua atau tidak), atau trafo IFnya, mungkin juga IC IFnya/IC OSC. Maaf kalo sarannya kurang membantu, soalnya belum pernah dapat masalah seperti itu. :peace::peace::peace:
     
  12. ariesjava

    ariesjava Active Member

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    He2 ane jg bos, sjak 2004 nyervis kyk ginian ampe pindah ke hp. Br x ni nemu kasus yg kyk gini. Untung ni pasien punya sndiri.
     
  13. asyhar

    asyhar New Member

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