| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2643R | VERTICAL LINE ON THE PICTURE, REMOUNT Q701 | Vertical line appears in the center of screen on brightscenes. Found Q701 installed wrong at factory. C was connected to E.B was connected to C and E was connected to B. | ||
| Sony | KV2602 | PICTURE BLANKING, ADJ JERROLD CABLE BOX, VARI-LOSER | When using models with 30P chassis on cable systems thatscramble the pay channels (by removing the sync pulses at the head end andreinserting them thru a converter) the sync is sometimes compressed tooclose to blanking. This apparently reacts with the k | ||
| Sony | KV1946R | SHUT DOWN, REPLACE IC601 | Set turns off by itself after 45 minutes. | ||
| Sony | KV1946R | SOUND AND PICTURE DISTORTION, REPLACE Q051 | Set would not go all the way off. When turned off, pix woulddim, sound goes off. Found Q051 relay drive transistor completelyBURNED OUT. | ||
| Sony | KV1945RS | INTERMITTENT SOUND, REPLACED IC202 | Unit had very intermittent sound. | ||
| Sony | KV1945R | SOUND POP NOISE, REPLACED C226 | Sound would pop off and on intermittently. | ||
| Sony | KV1922 | NO LOW VHF | No low band VHF-UHF OK. VHF high OK. No negative 6 volts atVHF HI terminal of tuner apply external -6 volts could tune in low band.Q102 VHF HI drive had no negative voltage at base troubleshooting found-12V rectifier being loaded. | ||
| Sony | KV1746R | INTERMITTENT SHUT DOWN , REPLACED Q901 | This set very intermittently shuts down. It could run a weekjust fine. | ||
| Sony | KP7220 | PICTURE DISTORTION, REPLACED D5319 | Overscan. | ||
| Sony | KP5040 | INCORRECT MECHANICAL FUNCTION | When closing mirror assy, motor stops intmtly during first 3or 4 inches of travel. This is more severe if even the slightest pressureis applied in a downward motion on the reflector when motor is running.The plastic pipes tend to jam severely when press | ||
| Sony | KP5040 | SHUT DOWN, REPLACED HIGH VOLTAGE BLOCK | Door would not open. Unit would shut down. | ||
| Sony | KP5000 | OUT OF CONVERGENCE | Green would go in and out of convergence as the green tube wasarcing. Also brightness level change would affect size of green pictureproducing misconvergence effect. | ||
| Sony | KX2501 | INTERMITTENT BLACK BLOBS IN PIX, REPLACED T1501 | Black blobs intermittently come and go and move around thescreen. The intensity and size can be varied by adjusting the videoinput level or AC input. By observing the waveforms in the horiz.circuit we found varying amounts of distortion at the secondar | ||
| Sony | KX2501 | VOLUME LEVEL CHANGES WITH PIX CONTROL, REPLACE IC101 | Sound would increase when increasing picture level, decreasewhen lowering picture. Adjusting sound control would have similar effecton picture level. Mute control would not fully mute sound. PWM signalsfrom uP, IC101 Pins 2 and 3 were of the same ampl | ||
| Sony | KV9400 | INTERMITTENT COLOR | This set was intermittently losing color. Found horiz. pulsemissing at Pin 20 of IC301. Traced problem to C311 which was opening up. |