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Modelo - Chassis


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(Chassis)
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SonyICF9530W
MISSING P/N The volume control part number is missing from the S/M.
SonyICF7750W
L17 NEEDED REDRESSING No weather band reception and dead carriers at intervalsacross high VHF band. Only sound of 2 local TV stations came through.
SonyICF7750W
LEADS 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,
SonyICF7370W
MISSING SWITCH ARM Radio would not switch from FM to PSB band.
SonyICF7280W
COLD SOLDER JOINT ON CT4 No AM.
SonyHST49
LEAKY 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.
SonyHST49
DEFECTIVE TUNING CAP After 15 minutes of operation, AM section stops operating.
SonyHST49
DEFECTIVE Q901 Output IC (501, 601) failure. A hole was found in IC's afterthey failed.
SonyHST49
INCORRECT P/N Service manual shows P/N 1-548-091-XX for tape counter, thiscounter will not mount in unit.
SonyHST48
DEFECTIVE 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.
SonyHMK339
MISSING PART NUMBER Part designated as spring plate on exploded view Page 32 ofS/M has no part number. -HQ COMMENTS: The part number is 3-554-215-00.
SonyHMK339
DEFECTIVE RUBBER ON REEL ASSEMBLY The take up reel does not take up the tape properly. Tapeballs up between capstan and take up reel, and get damaged. This iscaused by lack of pressure between drive pulley and take up reel rubbersurface.
SonyHME228
WRONG VALUE CAP INSTALLED No separation in stereo. All voltages looked OK - factoryerror.
SonyHP219A
BOARDS HAVE CHANGED Manual lists the part number as K-006-048-10, part beingreceived is K-0660-481-0. -HQ COMMENTS: The servo amplifier and DC motor set has been changed andthe former set is no longer available. The part number of the set(K-066-048-10) remains the same.
SonyCFSD7
LEVER NEEDED BENDING Solenoids would click but tape mechanism would not move.Lever A would rise over cam gear A causing the mechanism not to bepushed down into gear.


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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