Dicas Reparação PHILIPS





Pesquisa: PHILIPS

Resultados 13482

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
PhilipsFL1.2Bad picture, sometimes redCheck/replace D6450 and R3341.
PhilipsFL1.2Bad focus or focus varies in a new set or after CRT replacementPossible solution: Short circuit the focus and the G2 pins of the picture tube with the aquadag coating. Switch the set on for approximately 5 seconds. After this return the set to its original condition. Check if the focus adjusted normally. If not repla
PhilipsFL1.2Auto switch-off with audio only inputWith early receivers, if an audio signal only is applied to an external socket without an accompanying video signal, the set will switch to standby after about 10 minutes. The absence of a video signal is interpreted as a no signal condition and an audio
PhilipsFL1.2Auto switch-off with audio only inputWith early receivers, if an audio signal only is applied to an external socket without an accompanying video signal, the set will switch to standby after about 10 minutes. The absence of a video signal is interpreted as a no signal condition and an audio
PhilipsFL1.2Auto CTI switchingAuto CTI switching ------------------ In order to improve RGB playback performance it is possible to switch off CTI after a few modifications in the High-end box. Please find below the changes which have to be made in the High-end box in order to switch
PhilipsFL1.2Antenna input: no sound. External input: sound O.K.Check whether crystal 1602 (stereo decoder) 10MHz oscillates. If not replace X1602 (4822 242 80276).
PhilipsFL1.2After 10 minutes picture becomes red from right sideC2395 on the LSP poorly soldered.
PhilipsFL1.2Addition to service manual parts listAddition to service manual parts list ------------------------------------- Please add the following item to the parts list: Service manual Item Code no. FL1.2 AA EHT Bleeder (EHT cable) 4822 218 21041
PhilipsFL1.250Hz buzz noticable through speakerCheck/replace IC7680 on the SSP - TDA8425, pseudo stereo IC. (4822 209 63734).
PhilipsFL1.222AV1440 is switched on by external VCR when FL1 is switched offConnect 4 diodes of type BAT 85 to inputs of IC7630 on SSP. 1 diode between pin 3/IC7630 and +5V, cathode to +5V. 1 diode between pin 5/IC7630 and +5V, cathode to +5V. 1 diode between pin 3/IC7630 and -8V, anode to -8V. 1 diode between pin 5/IC7630 and -8
PhilipsFL1.2100Hz crossPossible solutions: 1. Interrupt on the SSP the 50Hz Y-signal, between pin 11 position IC7324 (TDA4568) and pin 11 position IC7395 (TDA8443), by deleting position 4302. Repair the connection by means of a shielded cable of 16cm long, m
PhilipsFL1.1SWrong synchronization, unstable colorsD6417 on the LSP dependent on temperature, check/replace (4822 130 81223)
PhilipsFL1.1SUnstable picture, horizontal jitter.Check/replace R3405 on the LSP. (4822 051 10303 for 50 Hz sets; 4822 051 10333 for 100 Hz sets).
PhilipsFL1.1STuning does not functionResistor R3240 on LSP in V-tuning wire broken.
PhilipsFL1.1STotally inoperative.Transistors 7250 (BUX85F; 4822 130 62509) and 7251 (BC848; 4822 130 61207) in microSOPS defective. Or D6251 (LLZ-C5V6; 4822 130 80954) and R1250 (=R3230; 1 Ohm; 4822 052 10108) defective. Or T7270 (BD825; 4822 130 41746) Or T7201 (BC857C; 5322 130 427



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.

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