Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
LG | 42LW5700 | Não liga,fica piscando stand by | Fazer reflowr no processado e é só partir pra galera???????????? | Cabeça | |
AOC | M19W531 | Tv liga e em poucos segundos desliga o back ligth tv permanece. | Fuga na linha dos drivers do inverter, que alimentam as lâmpadas. | Trocar sem medir os diodos D203 e D204 ambos zeners de 11v. pode colocar zeners de 12V/1Watt. | Givaldo Rodrigues |
LG | 42LW5700 | Não Liga . Led StandBy Pisca Lentamente . | Mau contato nos terminais do processador por aquecimento ao longo do tempo . | Aplicar estação de ar quente durante 1 minuto sobre o processador. Já consertei 3 LG com o mesmo defeito | Evandro Vizicato |
LG | 47LW5700 | Não liga | Verificar HS01G e D601 (1N5408) | Eletro Pira | |
PHILIPS | 28PW5324/01 A8.0E AA | NÃO LIGA | COND NO MAT 2633 (152K/2IKV) EM CURTO | FUSIVEL DA FONTE BOM | JOAQUIM CUNHA |
Sharp | 66FW53 widescreen DA-100 , 50 and 100Hz series | E/W fault | Coil L603 part num RCILP0286BMZZ had severely burnt up and Q506 E/W driver 2SD2391 Part num RH-TX0151BMZZ was short circuit. If you have this fault check L604 for invisible dry joints, if you don't you may find you still have an E/W fault when you have replaced the faulty parts | ||
Sharp | 66FW53H | Dead - Neon lit | R713 and R714 560K high or o/c | ||
Sharp | 66FW53H | Dead - neon lit ... another fault! | Check the BZW04145 diode across C720, if short circuit, replace and also replace opto-isolator IC704 MOC8106 and IC706 TL431 voltage reference. You can put an 817 opto-coupler in diagonally | ||
Sharp | 66FW53H | Colours ramping, poor greyscale | Replace IC1002/3, Set will need reprogramming afterwards | ||
Sharp | 66FW53H DA100 | Failure of Q601 BUH515 and possibly Q506 | Found dry joints on C613. Also R613 had burnt top of C613. Fitted new parts, found Circuit no longer available. Sharp by name sharp by nature came to mind. Set only just over two years old | ||
Hitachi | C32FW523NA A8 | No or very dull picture with osd and text just visible, A1 control makes little difference, looks like poor crt | 18v zener diode Z703 s/c located near lopt, it is part of the acl beam current limiter | ||
Hitachi | C32FW523NA A8 | Procedure to enter service mode | Switch tv on then press menu then press vol up and vol down on the front of the set simultaneously and hold until menu appears | ||
Sharp | 66FW53H FW | Dead only neon lit | Check D735 across 150v rail, if s/c you will need to replace the opto and the D735. Check Q601 line o/p transistor as this may also be leaky | ||
Hitachi | C32W511TN A7 | Intermitently goes to standby | Check R959 as described by Mark C24W511TN and found no problem there, however I discovered that several connections in the area of R959 had fractured. They appear to be components near/attached to a heat sink. Re-soldering the joins did the trick | ||
Sharp | DW100 66FW53H | Dead - usually IC705 opto is to blame - Pt. No. RH-FX0106BMZZ | changed to RH-FX0110BMZZ - When the opto fails it usually takes out the line output transistor(BUH515) and the feed resistor to the line o/p stage 1R2W resistor. You need to add a 145v avalanches diode to the circuit on the print side directly beneath C720(H.T. reservoir cap) which also will need to be replaced. |