Jumat

BELAJAR ELECTRONICA DAN SERVIS TV

1. POLYTRON-P in P
Tuning geser & Blanking, OSD ok : Cek Tuner (Digital 5v) rusak salah satu.
2. FUJI ELECTRIC 21” (TA7680)
Tuning geser, search tidak berhenti : Cek Capacitor di PIF (68pf).
3. DAZZ-145038
Blanking & ada garis2 hitam, Sound ok No OSD : Cek Elco Filter 180v.
4. THOMSON-TS4225
Defleksi (Vertical) dipasang Protect, dilepas ok : Cek 2 Resistor seri(1,5Mega) yg menuju Pulsa Vertical.
5. POLYTRON (Reguator TDA8380)
B+ Pump Up : Naikan Filter 15v di Bag.Primer Regulator jadi 2200u
6. MESIN CINA
Regulator diam meski tanpa beban : Cek Capacitor di Basis Power (15n).
7. JVC-AV.G201
Gambar Hor. Geser & belang2 Hitam/Putih 10cm : Cek C550(100u16v) di Input 7805.
8. GOLDSTAR-CF14D20 (Ada IC SECAM)
Distart Led nyala trus mati (Tidak Standby) : Cek Pin 9 S6707, bila Pump Up Cek FR813(1ohm), ZD803(9v1).
9. MITSUNO (LA7688)
Kadang Start, kadang Standby : Ganti Eprom harus 93LC56, kalau 93C56 gak bisa.
10. PANASONIC-TC2088
Regulator mati : Cek Q801(C5253/C4804), Q805(A1512/A733).





1. GOLDSTAR-CA14A62
Gambar tipis, PIF dganti tetap : Cek Z201(CF5,5Mhz).
*Test: Sentuh Basis Q202, Gambar bagus.
2. SHARP-51R200
Start hidup lalu mati, Led jadi Merah : Cek R502 utk Supply Vertical.
2. FUJI ELECTRIC 29” (TA8659)
Matrix kacau warna Merah gak keluar ( IC,Vcc ok) : Cek R729(8k2) di Pin 2.
3. SUKIRA-CE1493
Standby B+ ok, distart drop : Cek D606.
4. TOSHIBA-2545DE (TA8808)
Regulator & Relay tidak Stabil (Pump Up) : Cek Hor.Osc Out, Replace Crystal 503F30 dengan 500F2 biasa.
5. GOLDSTAR-CF14D20 (Ada SECAM)
Gambar kadang warna, kadang tidak : Open R73 di Basis Q07.
6. DIGITEC-DT2082S
Regulator Pump Up & Tidak bisa di Adjust : Cek Pin 3-14 TDA8380(-/+ 10k), kalau
Terlalu rendah/Short ganti.
7. DIGITEC-DM143031
V.Hold tidak fungsi (IC,Vcc ok) : Cek C302,303(47u25v NP) di jalur CVBS/AV.
8. AKIRA-CT21PF9
Tidak bisa AV, Logic Control & 4053 ok : Cek Pin 42 LA76810.
9. DIGITEC-DM143030
Blanking : Cek T712(BC547) di jalur H.Sync.
10. DIGITEC-DM143031
B+ Over sampai 250v : Cek R510 (1k) di Regulator.
 








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