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Results 37055
Results 37055
Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
---|---|---|---|---|---|
Toshiba | 28W8DB | No frame drive however sound and line drive is present | E/W correction chip TA1240 at front of line/frame was defective, replacing the IC cured the fault | ||
Matsui | Vid Combi Model: TVR185 | Accepts tape then immediately ejects it | The capstan motor was faulty. Fitted new motor | ||
Panasonic | TX-21S3T | No line drive | This one had me puzzled for a while until I found that diode D861 was open-circuit intermittently! | ||
Philips | 28PW6005 A10 | Changes to ext 1 when watching tv ok with video input | IC7064 defective, replace it. Philips best nr= 311125054501. price = 48 euro, after replacement the smart settings have been set to 255 read the instruction note for this software!! Code number instruction note = 996500013923 | ||
Sony | BE3D | Picture too big, maybe strange colors, shuts down after a few seconds | Check for shorts in IC606 9V voltage reg | ||
Nokia | Euro Stereo 2 | Hard to turn on, hissing sound, bad picture | Check C787 10uF, 50V | ||
Sharp | 51DT25H U | No audio R305 o/c | R305 2.2ohm, Q3021 BC636, Q3011 BC635 | ||
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 | ||
Panasonic | NVHD100 | Narrow sync pulse output in E-E but ok when pre-recorded tape is played | Replace 3.3uF, 50v SM capacitor on hybrid IC301, If fault persists replace IC301 on the Y/C sub board | ||
Sansui | SV-20BG 11AK03 | No vertical | R822 15K open | ||
Grundig | CUC4400 | E.H.T very weird, E.H.T. transformer makes strange sound, no image | Measure pin 1 of the TDA2579, if there are vertical pulses then measure pin 11 of the TDA2579 for hor. pulses, If missing, or voltages are very low Mv replace the IC. The ref. voltage on pin 12 will be present if the TDA2579 works correctly. Measure on pin 10 of the PS | ||
Grundig | CUC4400 | No image from tuner. Image from AV input rgb is rolling over the screen no synchronisation | Check if teletext is present at the top of the screen. If this is ok replace the TDA5931 normally the sound will also be missing | ||
Sinudyne | 34B0A | Geometric distortion, Pillow, and picture enlarged horizontaly | The problem was a short from GND to pin 11 inside IC301 TDA8350Q. This pin is the output of amplifier for geometric correction signal. Replace IC301 | ||
Finlux | SN87A2 | No sound or picture | Check R44 for o/c and D20 for s/c | ||
Salora | K K | No e/w correction | This was due to T504 | ||
Philips | CP110 | Vertical ripples on horizontals | Replaced C2633 100µF, 25V | ||
Philips | CP110 | Image appeared after a 5-20 minutes, sound was choppy when changed by the remote | Replaced C2690 100µF, 50V with a 100µF, 63V type, this is located on the small overvolt board in the power supply area | ||
Goodmans | GTV69W3 11AK19 | East West distortion, only 16:9 available | Resoldered numerous dry joints around east west and heater circuitry. R629 27R 1/4 W Safety found open circuit. Replacement + resoldering cured fault. | ||
Grundig | ST82-675/9 TOP CUC6380 | Dead set, Tripping | LOPTX short circuit between most pins! | ||
Philips | GR2 | Sound but no picture | Check the LOT cable for short circuit |