Sony TV Repair: Common Faults and Solutions.
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Results: 20067
Results: 20067
Sony Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KP7220 | Insufficient width, replaced ic-2003 "k" board | Unit suddenly had insufficient width to fill the screen.voltage on 115v regulator on k board was about 10 volts low. | ||
| SONY | KP5000 | Poor purity | Color purity problems around edge of picture. problem was caused by flaking of phosphor edges on all three crts. | ||
| SONY | KV2645R | Incorrect operation, replaced x002 | When master power switch turned off and unit allowed to cooldown, it would take approx. 2-3 hours for any function to operate afterapplying power. cooling the ceramic osc. x002 would cause unit to shutdown and all functions became inoperative. | ||
| SONY | KV2645R | Picture dark with excessive color, replaced r-751 | Color overload or flaming color. color was especially extensive mostly in the red spectrum. even when the color was turned down, some overload still existed. | ||
| SONY | KV1945R | No audio, replaced open r232 and shorted q205, q206 | Not audio. | ||
| SONY | KV1942R | Tuner drifts, replaced zener d2103 | Tuner drifts off channels and several lights are lit at thesame time. 18 volt line to tuning circuits would be low, about 10 vdc,and problem would occur. d2103 was zenering at lower voltage causing18v line to drop. | ||
| SONY | KV1913 | Dark picture | Dark picture. | ||
| SONY | KV1913 | Sound distortion | After warm-up sound would distort and change in volume. | ||
| SONY | KV1714 | Set locks on ch 2 | Set locked on ch. 2 defective cx804 (ic033) decreasing 35vsupply. | ||
| SONY | KV4000 | No tuning on vhf low | No automatic nor manual tuning on vhf low, vhf high anduhf band. found no voltages at vc terminal of tuner - resistancemeasurement showed short to ground - tracing back found short at m1 plugon m board - pin 8 shorted to pin 9. | ||
| SONY | KV2645R | Snow picture, replaced x001 | Intermittently, tv reception would stop except for a verypoor channel 6, snow on all other channels. address line a always high(11.9v) regardless of channel selected. | ||
| SONY | KV2643R | Picture shifts, demagnetized crt | Graphics were shifted to the right. when unit was taken toservice shop and center-cross generator placed on set the centering wasoff approx. 2 inches to the right. all associated circuitry was checkedand found to be in proper operating condition. repl | ||
| SONY | KV2643R | No picture, replaced c607 | The following parts were bad in this set: q901, q902, q601,r605 open, r609 open, r232 open, connector a-10 on pc board arcing.after all these parts were replaced, the set would come on and thepicture would blink severely, both horizontally and verticall | ||
| SONY | KV1945R | No picture, c1008 in prescaler shorting to frame | The following notes were made in determining problem. 1) nowave train at pll in, tp59. 2) no voltage on pin 15, ic003. 3) voltageat tuning point on tuner went to 31.5v and would not vary. cause - c1008on prescaler was shorting to adjacent frame on p | ||
| SONY | KV9300 | Incorrect brightness | The set has an excessive brightness. the screen control ishigh and cannot be adjusted, r706 is open. | ||
| SONY | KV9300 | Retrace lines | Retrace lines, no screen control. | ||
| SONY | KV2645R | Audio cracking, replaced t207 | Intermittent audio cracking. | ||
| SONY | KV2643R | No sound | No sound, picture ok. | ||
| SONY | KV2643R | Channel lock, replaced l001 | Right after turn-on, tuner would lock on a channel. wouldnot change channels manually or by hand unit. it had no clock on pins12 and 13 of ic001 (volume and on/off ok). | ||
| SONY | KV1945R | Poor remote operation, resoldered x002 on md board | Poor response from remote control. poor range - missesfunctions. |