Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | TCM10 | PART NUMBER | Item number 28 page 30 of S/M for TCM-10 lists the partnumber for the stopper washer as 9-910-999-34. This is a no longeravailable number. -HQ COMMENTS: This washer should be P/N 3-315-384-11. | ||
Sony | PCM701ES | NO PLAYBACK | The unit would not play back. IC505 was not operating due tothe clock input on pin 12 being absent. We found the trouble in the VCO.Q524 had a B-E short and upset regulators Q525 and Q526. | ||
Sony | TCM5000EV | PAUSE MODE NOT WORKING CORRECTLY | On this unit and on a previous repair, I found that thespring (Ref. #357) was broken. When the pause button is depressed, themotor will stop after a short time as S902 is not being turned on. | ||
Sony | ECM939LT | BLUE WIND SCREEN | Need blue wind screen. They do not list part number in themanual. -HQ COMMENTS: The part number is 2-529-941-00. The Ref. #34 isincorrect in the parts description for the window screen. We will issuea S/B. | ||
Sony | PCMF1 | MUTING | In 14 bit mode unit works correctly. In 16 bit mode, unitmuted. | ||
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 | TCM5000 | STATIC IN AUDIO | This unit produced an intermittent pop/static in the audio.We found the capstan bearing to blame. I have noticed that this unit isespecially prone to static problems caused by poor grounds. | ||
Sony | PCMF1 | DEFECTIVE IC531 | Sound breaks up (muting) on E to E and on playback ofprerecorded tape. Found VCO drifting. Found no DC change at output ofIC531 Pin 1 although input to Pin 3 was changing. | ||
Sony | TCM7 | ON SERVICING | No way with unit opened up to apply power to any mode andobserve voltages gears operation or functions. We need some kind of jigso that audio board can be remote from mechanism and still be operated.This also applies to Model WM-7 as well. -HQ COMMENTS | ||
Sony | PCM701ES | LEAKY D201 | Volume control appeared to be defective. It was noisy whenvaried. Input to Q201 always had a negative voltage present. This wascaused by a leaky D-201. | ||
Sony | TCM5 | CASE MUST BE INSULATED | After installing new motor and board observed intermittentoperation of motor and intermittent speed. | ||
Sony | TCM5 | MISSING PARTS IN S/M | The mechanical layout on page 15 of the S/M is missing parts. | ||
Sony | PCMF1 | LEAKY L519 AND DEFECTIVE IC505 | Recording section worked fine but the playback section didnot function. | ||
Sony | PCMF1 | DEFECTIVE D102 | Left channel was noisy - REC level control had minimal effecton noise - input signal was weak and distorted - line amp had some DCoffset at input to LPF - found constant current diode D102 breaking down.When testing this diode on a curve tracer using a 1 | ||
Sony | TCM280 | MISPRINT IN S/M | On page 23 of TCM-280/280B service manual a part numbermisprint exists. -HQ COMMENTS: The correct part numbers for two diodes are as follows:DM-101 8-745-101-01DM-101A 8-745-101-11The DM-101 substitutes for the DM-101. Thus, in this case, the part |