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Make	Model	Symptom	Problem
SONY	KV2680R	Audio exists at vol zero, replace ic-1107	When the audio level is turned all the way down, you can still hear audio.
SONY	BMC550	Replacement numbers for cr2025 battery	Since we do not have sample cr2025 battery, can you advise theduracell or eveready replacement numbers? -hq comments: the numbers are as follows: sanyo cr2025 duracell dl2025
SONY	KV1515	No high voltage	No high voltage, +115v up to +142v. half of the dialindicators light at the same time. sometimes the tv would work normal.
SONY	KP5040	Cable interference, soldered tuner, prescaler and ant sw	Fine diagonal lines on ch. 4 spaced about one inch apart.
SONY	ICF200W	Ref #503 and 504 reversed	Ref. # 503 and 504 reversed. should be + board a p/n 1-605-271-00 - board b p/n 1-605-270-00 -hq comments: we will issue a t/n and s/b.
SONY	TAAX44	Missing p/n	Page 27 of the service manual, location 2-a. per kc, thepart number should be x-4882-013-1. this part number is not given in theservice manual. -hq comments: the part number is correct. will issue a t/n and s/b.
SONY	TAAX44	Missing part number	No part number in service manual nor in semiconductor book.you issued hifi bulletin #166 (july, 1983). -hq comments: the part number is 8-759-100-43 as in the hifi bulletin#164 issued in march 1983. the mpu w/-200 has been changed to -213.
SONY	XM100	No audio output	No sound. found power amp transistors q411 in left channeland q512 in right channel shorted e to c. after replacing transistorsstill had no audio out. further checks showed +3v on both e and c of q302(remote switch). found r305, 100 kΩ res. open.
SONY	KV1922	Crescent moon effect	When set was first turned on, you have a full picture. witha crescent effect on the left side of the picture, it was about 12 incheshigh. after approx. 1 min., this dark area would fade and then thepicture went into a christmas tree effect with about 4
SONY	M400B	Intermittent tape speed	The tape speed would intermittently go way too fast in play,and fast forward and rewind. pressing on the case behind the speakerwould cause problem to come and go. found the leads of q2 bent in such away that they would contact the chassis, thereby shu
SONY	SL2405	Picture unstable	Picture breathes with no complete loss of either drum speedor phase.
SONY	STRAV460	Part # is in error	Part # listed in service manual on page 56 is in error.should be 8-749-940-36. at the present time kc npc is not substitutingcorrect p/n and servicer is being told that this is an invalid part #. -hq comments: the p/n in s/m is incorrect as you pointed
SONY	CCDV8	P/n for rfu80uc	Customer bought unit in japan. needs rf unit for usa. part #is not in the service manual. -hq comments: this accessory may be ordered under the model #(rf-80uc).
SONY	SL5000	Wrong part number in s/m (ss-9 bd/c008)	Wrong part number in sl-5000 manual.
SONY	SLHF500	Noise in l-ch when playback edited portion	Loud pop noise when playback edited portion of self-recordedtape in l-ch of beta hi-fi output only.
SONY	CDX5	Destroying disc	When loading and unloading a disc, the cdx-5 is putting amark on the disc. the marks appear only on the outer 3/8 of the disc.the marks are at a slight angle sometimes 3 or 4 at every loading. thesemarks are not scratches but are cloudy 1/16 wide 1/4 l
SONY	KV2670R	Distorted sound, t-202 with cracked slug	This unit had very distorted sound. we found t202 to have acracked slug.
SONY	FD20	Shattered crt	The customer took the unit with him in his plane. at 12000feet, the crt shattered into a million pieces. there is absolutely nodamage to the cabinet.
SONY	SL2710	Poor tape path	The tape was riding up on the pinch roller and at timesdamaging the tape. we found the back tension to be insufficient andcausing the problem. what made this problem unusual was the fact that theunit would often play fine for extended periods.
SONY	KV2145R	Weak video and poor sync, leaky c208	This unit displayed weak video and poor sync. we found c208of ic201 pin 3 to be leaky.