Dicas Reparação








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Resultados 83816

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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
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.
SonyHST49DEFECTIVE TUNING CAP After 15 minutes of operation, AM section stops operating.
SonyHST49DEFECTIVE Q901 Output IC (501, 601) failure. A hole was found in IC's afterthey failed.
SonyHST49INCORRECT P/N Service manual shows P/N 1-548-091-XX for tape counter, thiscounter will not mount in unit.
SonyHST48DEFECTIVE IC HA1350S Unit turns on but no sound from speaker A or B channel. Ifnew speakers are plugged in they will blow because of 28 volts comingthrough defective HA1350S output IC. This also pertains to the HST-68 andHST-69.




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