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Make	Model	Symptom	Problem
SONY	XR20	Pop noise every 5 seconds	A popping noise every 5 to 7 seconds is heard through thespeakers.
SONY	KV1221R	Shutdown, replaced q601	Using an isolation transformer, unit will work properly.when using the wall outlet, unit will not turn on. the only diff. foundwas the isolation transformer output was 8vac less than the wall outlet.
SONY	KV25XBR	Wrong part number	The service manual shows ic1502 as part number 6-066-717-10 inerror.
SONY	KV1355R	Wiring error in manual, a-12 connector reversed	In the manual, the wires to plug a-12 on the a board arereversed. we discovered this while troubleshooting a key board problem.
SONY	KV1920	Start circuit burns up	The start circuit would fail to turn off despite the factthat the set was running and making 18v for the horiz. osc. circuits.we found the trouble to be caused by a defective horiz. osc. ic. it tookabout 11v to fire, this permitted the start transistor
SONY	SEH310	Part numbers for front panel	Front panels came in black or silver, but manual only showsone number, with no indication of color. we need the numbers for thesilver and for the black front panels. -hq comments: the number shown in the manual is for the silver panel.parts for the bla
SONY	WMF8	Missing part # for bracket	The service manual for this unit shows two ref. #31 in theexploded view on page 24. the parts list only shows the part # for thelabel and does not show the part # for the bracket. -hq comments: the part number is 3-319-043-01. please refer to t/na007.
SONY	MDR40II	Part number for head band ass'y	Need correct part number for brown head band assembly.manual says x-2371-808-1 but tech. keeps getting black one. it seemsthat several of the part numbers on page 3 of the mdr-40ii manual arewrong. -hq comments: found the part number of the dark brown
SONY	STRAV560	No am or fm	No am or fm reception. when heating xt201, normal function returns.
SONY	BMC550	Part number for handle screw	We need the part # for the thumbscrew which attaches thehandle to the necessary shoe on top of the camera. the part number forthe handle is 3-691-167-01, listed under accessories at the rear of themanual. -hq comments: the handle is not available as an
SONY	TCM600	Missing part number for stop lever	Need part number for stop lever, page 18 of the manual. -hq comments: the part number for the stop lever is x-3557-403-0. willissue a t/n and s/b.
SONY	KV25XBR	Ibm pc interface	The kv-25xbr service manual provides no technique or specifi-cations for adjusting the rgb subbrightness controls rv401, 402, 403. ifthis unit performs with the ibm computer, as did its predecessor theprofeel, adjustments may be necessary. -hq comments
SONY	STJX410	Wrong p/n in s/m	8-759-925-10 is tl510cp for but1000. part # should be8-757-925-11 per transistor sub book. -hq comments: the number is 8-757-925-11. we will issue t/n and s/b.
SONY	XR740	Car stereo would blink on/off	Dealer was trying to install unit in mercedes with factorypower antenna. when unit was powered up, car antenna would extend to fulllimit, then car stereo would blink on and off and thumping sound could beheard through speakers.
SONY	KV1331	Missing part number for bracket, 4-365-826-22	Need part number for tuner bracket. -hq comments: the part number for the bracket is 4-365-826-22. thebracket is not currently in stock, will be available soon.
SONY	KV2670R	Buzzing in audio, r-211 cold solder	Servicer complained of buzzing on all channels, at timeslouder on some channels than others. while troubleshooting the set, inoticed that one end of r211 was not pushed through the hole on the pcboard. when i inserted the resistor in the circuit, the b
SONY	BMC110	Intermittent no record	Customer complained that once tape was inserted, unit would gointo play mode. record and stand-by switches had no effect. also whenyou could get unit to record, edits were very poor due to insufficientbrake and pinch delays. during malfunction no leds
SONY	KV1910	Hv block	Model kv-1910 uses hv block 1-453-046-00. according to micro-fische, it has been subbed to 1-453-070-00. both are not physicallyinterchangeable and it is impossible to use original parts from old assy.can hv block 1-453-062-91 be used? -hq comments: 1
SONY	KV1915	Audio out	No audio or intermittent audio on certain stations. manymodels (kv-1913/1914/1916/1917/1918) have the same circuit.
SONY	KP4600B	Picture would gradually collapse to a horizontal line	After several hours of playing, picture would graduallycollapse to a horizontal line.