Dicas Reparação SONY
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27EXR25 | No raster, the set will click on but no high voltage | Replaced IC651 on the power board type STRS6301 Note: Use an original STRS6301, not an STRS6301A unless the 6301A comes from SONY This part does run very hot | ||
| Sony | KVA2542 | Fault not limited to this model. Turning itself to standby, mostly when warm. Flashing error code on LED's. | Dry joint on IC TDA8179 under metal shield. May need replacing with STV9379. May also need to alter picture geometry settings HSIZE, HPOS, VSIZE, VPOS in service menu | ||
| Sony | FE-1 | Set shuts down shortly after start up with standby led flashing 2, 4 or 5 times | Check / replace chip resistors R543 47Kohms and R541, R573 and R575 all 100Kohms | ||
| Sony | FE-1 | Changes channel or volume adjusts by itself | Check S900/1/2 on pcb H1, alternatively this could be due to failure of IC005 CD4052BCM-FL63 on pcb A | ||
| Sony | FE-1 | No power no standby power supply op | IC609 TOP209 was faulty, also checked C640 47uF, 25v, D631 MTZJ-12B, D628 P6KE200, D629 UF4005PKG23 and R627 4.7ohms, 5%, 0.25w as a precaution | ||
| Sony | KV20TR22 | Intermittent reception on VHF / UHF | Resolder tuner especially the around the tuner I.C | ||
| Sony | BE3D | Picture too big, maybe strange colors, shuts down after a few seconds | Check for shorts in IC606 9V voltage reg | ||
| Sony | BE1 | Loss of sound when set was cold / extremely distorted sound when cold after set was turned on | Sound recovered within a few minutes of turn-on and was then normal. Check the electrolytic capacitors and diode near to the audio output IC heatsink. 100% rectification was achieved by replacing the diode and small value electrolytics in the immediate area of this IC's heatsink | ||
| Sony | KV2020 | No Sound | Replace sound i.c TBA120U | ||
| Sony | FE-1 | No picture or dark picture | Check R516 56Kohms, 0.5w or R517 27Kohms, 0.25w for high resistance or o/c | ||
| Sony | FE-1 | Excessive width | This was due to Q532 2SK2251-01 being s/c, it is advisable to also check other EW circuit components as a precaution | ||
| Sony | KVM1400 | Will not power up, red LED blinks twice | Replace ICP fuse in HT line PS801 N15, 600mA mounted adjacent to pin 7 of LOPT | ||
| Sony | KV2165MT | Main fuse blasted | Replace the STR50115 | ||
| Sony | FE-1 | Band of interference down left of screen on dark scenes | This was cured by adding a 1000pF, 2kV capacitor part no. 1-161-731-81 in parallel with D539 in the EW diode modulator circuit | ||
| Sony | FE-1 | Loss of one colour with teletext and on-screen displays | Check the appropriate 2SC2412K transistor Q007 green, Q008 blue or Q009 red |