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Resultados 82245

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyICFC15WDEFECTIVE POWER TRANSFORMER Dead. Check for hum in radio when repaired.
SonyICFC15WDEFECTIVE IC - MM5387N Hour numbers jumped from 4 to 7, 8 back to 7 instead of 4, 5,6, 7.
SonyICFC15WSHORT IN PCB No clock read out. Voltage on grid too low.
SonyICFC11WPOOR CONTACT No alarm, switch was not making proper contact.
SonyICFC11WPOOR CONNECTION IN SWITCH Cannot set alarm.
SonyICF9650WCRACK IN PCB No sound, dial lamp lights, found no B+ to radio.
SonyICF9650WBREAKS IN PCB Circuit board broken at 3 out of 4 places where circuit boardis mounted on front panel. No damage visable on main cabinet assy.,packing or box.
SonyICF9650WCOLD SOLDER JOINT T404 Hum only, no AM, no FM, B+ for radio was only 1.5V insteadof 7.5V.
SonyICF9650WBREAK IN PCB Dial light works, no sound.
SonyICF9530WMISSING P/N The volume control part number is missing from the S/M.
SonyICF7750WL17 NEEDED REDRESSING No weather band reception and dead carriers at intervalsacross high VHF band. Only sound of 2 local TV stations came through.
SonyICF7750WLEADS BECOME LOOSE No sound intermittently because the audio output transformerby its very weight had caused its secondary leads to become unsolderedfrom the board. If this transformer were held in place by tabs as aretransformers used in color TV's, this problem, I feel,
SonyICF7370WMISSING SWITCH ARM Radio would not switch from FM to PSB band.
SonyICF7280WCOLD SOLDER JOINT ON CT4 No AM.
SonyHST49LEAKY CAP Unit came in with no AM and no FM. The amplifier and tapeportion works fine. Checked B+ at Pin 7 of IC101 and found 18.5V (nocurrent draw by IC). Replaced IC101 (CX-168), still no AM or FM.



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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