TV Repair: Common Faults and Solutions.
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Results: 87440
Results: 87440
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | STRAV1010 | Missing adjustment procedures for amp bias current | The service manual has no adjustment procedures. i referredto supp.#1 for str-av1000 and it says 0.01mv within 30 seconds after poweris turned on, equalling 100ua bias current. the str-av920/1020 s/m says4mv within 30 seconds after the power is turned | ||
| SONY | STRAV910 | Missing adjustment procedures for amp bias current | The service manual has no adjustment procedures. i referredto supp. #1 for strav900 and it says 0.01mv within 30 seconds after poweris turned on, equalling 100ua bias current. the str-av920/av1020 s/m says4mv within 30 seconds after the power is turned | ||
| SONY | ICFC200W | Dead set - c104 and pt101 | Dead set. power transformer primary open. c-104 shorted andset has no fuse. | ||
| SONY | SPP50 | Pause function works only in pulse mode | The pause function works only in pulse mode and not in thetone mode. | ||
| SONY | KV27HFR | Shutdown, replace r-505 | Shutdown due to excessive hi voltage disconnected h-out andchecked horizontal waveform at pin 11 of ic-301. frequency was 7 khz.adjustment of fh control (rv-501) would bring into specs. checkedresistance of rv-501 and r-505. r-505 read 1.5 meg (should | ||
| SONY | SLHF1000 | Poor picture beta i | Poor record/playback of beta i - marginal tracking. picturequality is grainy. rf envelope lower than normal - most noticeable inbeta i. found voltage at ic-004 (pv-2) board to be 4.9v at pins 1 and 2.discovered r-16 to be 10Ω instead of 1Ω. pr | ||
| SONY | KV19TR20 | P/n for antenna in s/m is incorrect, 1-501-372-41 | Service manual says 1-501-372-21 is the antenna for thismodel. however, it doesn't fit the unit. -hq comments: 1-501-372-41 is the correct antenna for this model.please correct your service manual. | ||
| SONY | KV19TR10 | P/n for antenna is incorrect in s/m, 1-501-372-41. | Service manual says 1-501-372-21 is the antenna for thismodel. however, it doesn't fit the unit. -hq comments: 1-501-372-41 is the correct antenna for this model.please correct part number in your service manual. | ||
| SONY | STRAV380 | Input functions won't change - but display indicates change | Set locks onto one input function and regardless of selectedfunction, all audio output is from the function locked onto. the displayindicates whichever function key is depressed. the set would sometimesfunction normally until warm. | ||
| SONY | SLHFR70 | Drum assembly replacement does not fit properly | Original drum has cut-out. the replacement does not. | ||
| SONY | KV27HSR10 | Unit displayed unsynchronized picture at turn on, d-505 | Unit displayed unsynchronized picture at turn on but after a few seconds, picture would lock up. | ||
| SONY | XR5500 | Missing part number for pm900 | The part number for the plunger solenoid shown on page 13 aspm-900 does not have a part number listed. the same solenoid is shown onpage 15 as pm1.to tokyo: what is the part number of this solenoid which is shown as twodifferent references?tokyo fax:(re | ||
| SONY | D2 | Sled motor binds | Sled motor binds, sometimes it comes back after a short time of use. | ||
| SONY | KV19TR20 | Reddish vertical line, adj h req. rv-501 | There was a reddish vertical line about 1 1/2 inch wide inabout 1 inch from the left side. very noticeable when no color ispresent. this was caused by the horizontal afc being slightly offcausing a phase shift problem. | ||
| SONY | CCDF45 | Replacement lens requires new screws | The new lens has to be mounted with part number 3-335-640-11(2 each) screws. a service bulletin should be issued concerning themodels using this lens. -hq comments: the ccd-f35/f36 and the ccd-f45/f46 use the new screws the part number of the ccdf35/36 | ||
| SONY | STS700ES | No station memory | Unit would not hold presets after being turned off.ic-601/pin 42 should read 4.5 vdc. in this unit, ic-601/pin 42 dischargedwithin 30 seconds to under 3.5vdc. checking ic-601/pin 32 revealed thatthe clock continued to run after unit was shut off, drain | ||
| SONY | CCDF33 | No drum rotation | Drum would not spin so unit would not load. pin 66 of ic-501did output a signal but when tracing the signal it did not appear atpin 14 of ic-510. | ||
| SONY | PCM501 | S/n specification not given | What is the signal to noise specification of this unit? thisunit is mostly used now by recording studios who send the units in withcomplaint of noise. from my experience repairing other pcm units the501 is more noisy than the 701 or 601. since there i | ||
| SONY | CCDV99 | Part numbers for flex connectors | I need the part numbers for the following flex connectors:fp160, fp162, fp203. | ||
| SONY | WMD6C | No record or playback | Found signal going into ic-101 and 102 (dolby ics), but notgoing out. no dc voltages except pin 21 (b+). |