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Make	Model	Symptom	Problem
SONY	ICF7750W	L17 needed redressing	No weather band reception and dead carriers at intervalsacross high vhf band. only sound of 2 local tv stations came through.
SONY	ICF7750W	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,
SONY	ICF7370W	Missing switch arm	Radio would not switch from fm to psb band.
SONY	ICF7280W	Cold solder joint on ct4	No am.
SONY	HST49	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.
SONY	HST49	Defective tuning cap	After 15 minutes of operation, am section stops operating.
SONY	HST49	Defective q901	Output ic (501, 601) failure. a hole was found in ic's afterthey failed.
SONY	HST49	Incorrect p/n	Service manual shows p/n 1-548-091-xx for tape counter, thiscounter will not mount in unit.
SONY	HST48	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.
SONY	HMK339	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.
SONY	HMK339	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.
SONY	HME228	Wrong value cap installed	No separation in stereo. all voltages looked ok - factoryerror.
SONY	HP219A	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.
SONY	CFSD7	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.
SONY	CFSD7	Link lever binding	Cannot place tape deck in any mode. forward led on all the time.
SONY	CFS55	Defective r308 and switch	B+ section of switch malfunctions either on tape or radio orboth at same time, also affects battery operation. r308 was also open.
SONY	CFS55	Defective lock plate	Buttons jammed up, lock plate too soft.
SONY	CFS45	Belt comes off	Tape would not move in any direction. found belt off motorpulley.
SONY	CFM31	Bridge on pcb	The only function that did not work was am.
SONY	CFM31	Lever breaks	Customer forces record lever down, forcing lever (a) againstlever (b) which breaks or shears lever (a) pivoting stud which is a partof sub-chassis. also this forces ff lever up breaking its guide postwhich is also a part of sub-chassis.