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Dec 18, 2009

Kerusakan2 Tv. (Bag. 9)

1. POLYTRON-BB1475
Seolah2 Tuning geser, VIF 0k, Tegangan di BI ada terus : Cek TR Band Switch T708(BC548).
2. DIGITEC-DM1740
a. Auto Program langsung UHF dan ada tulisan AV1, AV2 : Ganti Eprom 93C46 yg asli.
b. AV No, Pin 15 TDA8361 ada 8v, sharusnya 3,5v : Replace TDA8361.
3. DIGITEC-DM172020
B+ over dan tidak bisa di Adjust : Cek TR Driver Regulator (C3807).
4. SHARP-14S20B/14R/B
No OSD, Gambar geser kekanan 10cm : Cek jalur AFC Pin 5 FBT.
5. DIGITEC-DM1452GB (Super Ninja)
Warna kadang ada, kadang tidak : Replace Elco Filter B+ (4,7u160v).
*NB: Test, Coba Paralel R 10k di R513 pin 21 TA8690.
6. SAMSUNG-CB3862X
Gambar membuka dtengah 5cm, IC Vertical ok : Ganti Elco Verticcal out 1000u35v.
7. AETNA-C1420
a. Vertical atas molor, bawah kurang 4cm(lain2 ok) : Replace Eprom 24C04.
b. Auto Tuning ok, Gambar jelek suara ngorok(Vcc ok) : Cek SAW Filter.
8. HITACHI-CPT2451
Y (Luminance) No, Chroma(Gambar warna ok) : Cek Diode seri TR Video Out Pin 24 LA7680.
9. SHARP-20A2-S
Picture Blooming(Mblobor), Colour ok : Cek ulang Parameter Service Adjustment.
10. NATIONAL-TC1475
Tuning geser(IC,IF,Tuner,Vcc ok) : Cek C1131(0,33u50v), C1132(0,47u50v) di rangkaian VT.

Bersambung Bag. 10...

1 comment:

  1. 5. DIGITEC-DM1452GB (Super Ninja)
    Warna kadang ada, kadang tidak : Replace Elco Filter B+ (4,7u160v).letaknya elco tsb dimana pak...? trims

    ReplyDelete