Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | VTX1100R | UNIT DEAD, REPLACED IC101 ON "A" BOARD | Unit dead, only AUX light comes on. Display and controllerclocks OK. System clock on pin.7 of IC 101 was missing. | ||
Sony | VTX1100R | NO FUNCTIONS - ERRATIC DISPLAY | At turn on, unit would come up with AUX light on and randomnumbers on display. Sometimes the display was totally dead. Theresponder light would come on when remote used, but no function exceptPower worked. Missing key scan pulses on IC-101, but clock | ||
Sony | VTX1100R | DISPLAY ON MONITOR (KX) HAS A RIPPLING EFFECT | The VTX1100R tuner came in dead. The line fuse F201 (1.6A)was blown. The fuse was replaced and the unit worked. The picture on theKX-1901A monitor was good however, the display had a rippling effect. | ||
Sony | VTX1100R | DISPLAY UNSTABLE | The display was very unstable. We found that there was ex-cessive noise on all the B+ lines. This was due to an open decouplingcapacitor - C135 in the DC-DC converter. Replacement resolved the pro-blem. The tip off was the fact that the converter was | ||
Sony | VTX1100R | PROFEEL TUNER | Intermittent shutdown when unit gets hot. | ||
Sony | VTX1100R | DEAD SET | When unit is first turned on, there are no functions fromremote control hand unit, except on/off function. Manual functions allwere OK. After about 10 minutes, hand unit functions were all normal.Inspection revealed signal present at base of Q213, but | ||
Sony | VTX1100R | DC TO DC CONVERTER RUNS EXTREMELY HOT | DC to DC converter runs extremely hot. This is the secondunit at same dealer location within 30 days. -HQ COMMENTS: Q112 failure is rather accidental and its replacementshould be sufficient. We can protect Q112 by adding 33 ohm 1/6W(1-247-795-00) resi | ||
Sony | VTX1100R | SOUND FADED OUT | Sound faded out while listening to the problem. TV audiowas weak and had excessive treble, line audio checked OK. Signal aroundIC205 Pin 25 was good, Pin 23 good, Pin 27 good, Pin 26 bad. Bypassedcap with tweezers and audio level came up to normal. |