Dicas Reparação




Modelo - Chassis SM2


Pesquisa: SM2 Enviar Dica Resolvida
Resultados 10
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
Bush 2866NTX/SM2
Intermittently the stereo symbol would appear on screen, sometimes it would change to dual II and back again, while this was happening the sound would crackle and sometimes disappeared all togetherThe problem was cured by re-soldering over the whole NICAM panel. Note: The Bush 2866NTX without the SM2 in the model is a different
Ideal/Slx IDTV28T/IDTV28N/SLX28T2/28N SM2
EW fault then set went dead tripping, R711 on EW panel burntCheck for dry joints on C620 0.47uF, 250V, if dry replace then check Q602 and R618 5K6. Also it is worth replacing Q580 anytime these sets come into the workshop with a BF422
FidelityCTV3228NF SM2
Colour fades outC325 0µ1
Bush2866NTX/SM2
Won't store or loses chan storeThis was cured by replacing memory 24C08
Bush2866NTX/SM2
To access tuning modepress and hold [MENU] button for at least 5 sec. Then press and hold the white button for at least 5 sec to auto tune all the channels. Then use the green button to re-arrange the stored channels.
Bush2866NTX/SM2
Line tearing when heatedC597 (22nF 400V) completely open circuit.
Bush2866NTX/SM2
Blank white raster - sound okJungle chip TDA8363AN3
Bush2866NTX SM2
Txt missingShort pin 20 of IC301 the micro to earth then switch on. Service menu should appear Service- Telra V2.0; OP byte 1 OX OB; OP byte2 OX BO Init EEPROM. Use P+/P- tp select the line to adjust and V+/V- to adjust.Bytes 1 and two must be as shown above. To initialise the EEprom select the line and press V+/V- Correct handset reqd.
SonyASM200PS
REDUCED SENSITIVITY TO SCENE CHANGES The unit does not set off the alarm when small changes aremade in the monitored scenes. Changes have to be very large to set offthe alarm.
SonyASM200PS
UNIT DOES NOT COME OUT OF FIVE-DAY TEST MODE In normal operation every five days the unit will test thesystem for proper operation. Two units have failed to return to normalpreset operations after the five-day test mode.


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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