Dicas Reparação PHILIPS





Pesquisa: PHILIPS

Resultados 13482

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
Philips3DTuner UV618/6456Tuner UV618/6456 ---------------- The tuner UV618 (4822 210 10304) is no longer available. For 3D sets please order 4822 210 10593.
Philips3DText does't functionCheck U 1555 (digital PCB; 4822 212 22585)
Philips3DSometimes no synchronizationReplace IC 7280 (DPU 2540; 4822 209 72138) on U 1555
Philips3DNo picture. After using TXT picture O.K.RGB switch in wrong position (external switch)
Philips3DNo 140 VRemove connector M17; voltage + 140 Volt is present. Replace TS7618 (2SD1577PH; 4822 130 43921)
Philips3DNo 140 VRemove audio output stage (PAS) U1003, +140 Volt is present. Replace IC7200, IC7210 (TDA1514/N4; 4822 209 70938). Also mount 2 diodes P4KE30C700 (4822 209 73095) in parallel to C2228 and C2229 (polarity is not important)
Philips3DMoire on channel 5 (175 MHz)Apply HF-shielded antenna-cable (from wall-contact across VCR to CTV) or use special antenna-cable 4822 321 61225
Philips3DCharacters wrongCheck U 1555 (digital PCB; 4822 212 22585)
Philips3DBrightness too high/fly-back line visibleCheck U 1555 (digital PCB; 4822 212 22585)
Philips3D140V OK and via SCART OKReplace U1018 (4822 212 22439)
Philips3AUnacceptable long heating time of older picture tubes.Add a diode 1N4148 (4822 130 30621) in serial with diode 6492. This will not effect the lifetime of the picture tube or the set. It prevents that the video controller mutes the picture untill the 3 guns are within the same range of emission.
Philips3AUnacceptable long heating time of older picture tubes.Add a diode 1N4148 (4822 130 30621) in serial with diode 6492. This will not effect the lifetime of the picture tube or the set. It prevents that the video controller mutes the picture untill the 3 guns are within the same range of emission.
Philips3ATuning unstableCheck U1018 (IF module Europe:4822 212 22439) (IF module France:4822 210 10295)
Philips3AText, clock and ODS do not work.If the memory has been changed be sure that the option is correct.
Philips3ASt/by onlyC2681 22µ 35v at front corner of pcb near chopper



Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

Verifique se o esquema está disponível na área de downloads