TV Repair: Common Faults and Solutions.
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Results: 87420
Results: 87420
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV2780R | Dead, replace ic-1401 and r-1576 | Unit came in no sound, no picture. traced problem to loss of9 volts. found ic1401 shorting 9 volts, also found resistor r1576 changedvalue from 2.2Ω to 100Ω. | ||
| SONY | KV2781R | Dead, replace ic-001 and d-1662 (no standby 5v) | The remote detector ic001 shorted and d1662 was defectivecausing no stand by 5 volts. the set would not turn on. | ||
| SONY | KV2781R | No remote, replace ic-0001 on "m" board | The remote control would not operate this unit. | ||
| SONY | CCDM8U | Cassette compartment will not lock down | Unit check out ok using mode selector jig. replaced sysconmicroprocessor, no help. -hq comments: check eject timing chart as indicated on pages 137, 138 ofoperation manual. also, place unit in eject mode using mode selector jig.then check pins 33, 34, | ||
| SONY | CCDV8 | Video dropouts during playback | Replaced drum assy and ar-1 board, no help. -hq comments: check ic101 (dropout det. circuit), ic102 (dropoutcompensator), and dl101 (1h delay) on the vi-6 board. please informresults. | ||
| SONY | STRAV260 | Wrong part number - cx7925b pll ic | S/m page 27 gives wrong p/n for above. it is listed as8-759-925-00 which is sn7417ns. -hq comments: we issued a s/b (hi-fi #217). some manuals for othermodels also list this ic as p/n 8-757-925-00. this is subbed in kcp. | ||
| SONY | SLHF400 | No power or picture rolls during playback | Will not power up or pix rolls while playing a tape. | ||
| SONY | D7S | Charged up and will not run more than one hour | Battery will not run unit longer than 1 hr. charged for 9 hrsunit ran for 35 min. charged another bp-200 12 hrs, unit ran for 2 hrs.checked d7s current drain 270ma. what is the charging time for thebp-200. how long should the d-7 run with a fully cha | ||
| SONY | KPR4110 | D-6001 p/n is incorrect, corrected number is 8-719-931-05 | Part number for d6001 and d6002 are listed as 8-719-935-05 inservice manual. research indicates that the correct part number for theabove diodes is 8-719-931-05. -hq comments: the part number has been corrected in the service manualsupplement. | ||
| SONY | SL2400 | Eats tape while ejecting | During unthreading, take up reel will not take up tape so eatstape when ejects. | ||
| SONY | CDXA10 | No remote function | We have seen a few units at the ssc now with the problem ofno remote function. | ||
| SONY | CRF1 | No pll operation | In the pll locked mode it was not possible to tune. | ||
| SONY | KV1961 | No sound, picture ok, leaky c215 | Unit had normal picture but no audio - servicer replace ic201,cf202, t204 and t205 with no effect. | ||
| SONY | D50 | Optical pickup will not return to home position | Optical pickup travels to outer edge of disc, but will not return to home position. appears to operate normally in service mode. | ||
| SONY | ICF9740W | Noisy volume control | Noisy volume control, worst at low end of range. tech. claims4-5 units/month for last several months. | ||
| SONY | KV2680R | Intermittent muting, reposition jumper wire | Two units having intermittent muting problem and missing partsof words, sometimes sounded like distorted audio. this problem developedon units that had repairs performed on x board and the original positionof jumer wire from point b to point b (connecti | ||
| SONY | CCDM8U | No luminance only color | No luminance, only color. | ||
| SONY | CCDM8U | Does not eject tape | Unit does not eject tape fully out of cassette compartment. | ||
| SONY | CCDM8U | Picture looks red and washed out on outdoor scenes | Found iris was stuck in open position. | ||
| SONY | XR747R | Lockup of microprocessor | Unit locked up. stuck on 530am. no buttons had any input. |