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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Vestel | 6392 | Field collapse no vertical deflection. No sound | Replaced resistor R818 15k, 1w which was o/c. This resistor is the limiter for the 33v tuning voltage | ||
| Grundig | 8214 | Poor linearity / vertical deflection problems | Check +D voltage on pin 12 of the vertical deflection module. If this voltage is less then 35V or has ripple replace C628 3300uF, 50V, also check fuse SI627 T3,15A. Sometimes this fuse has resistance causing a voltage drop across it | ||
| Sansui | SV-20BG 11AK03 | No vertical | R822 15K open | ||
| Philips | CP110 | vertical ripples on horizontals | Replaced C2633 100µF, 25V | ||
| Samsung | CB7230WT | vertical output problems, vertical output ic fails repeatedly ! | Fit a new IC, clean old heatsink compound, add fresh compound thinly on the surface. Now disregard all the other modifications previously suggested and ADD a large heat sink on the existing heatsink screw another one on top | ||
| Akura | CX35 Nicam | vertical height oversize | The eprom was found to be faulty nvm | ||
| Loewe opta | Profile E3000 | White vertical line only displayed on tube | Check for dry joint or burnt track on Horizontal Yoke PCB socket or main board | ||
| Magnavox | T946 | Loses vertical and horizontal sync | Transistor Q8 shorted | ||
| Hitachi | C2846TN | Intermittent partial collapse of picture vertically picture squashes down temporarily | See Field collapse tip - it will happen so anticipate it and correct at you leisure rather than have the TV fail completely in the middle of you favourite show | ||
| Panasonic | 14B3T Z375 | Excessive vertical overscan caused by a poor factory set up | Enter service mode and alter V Size:- | ||
| Toshiba | 215R8N | Severe vertical distortion- `egghead` symptoms | Replaced c317 in vertical cct 2.2uf, 50v substituted 4.7uF. Must be 105ºtype!! | ||
| Saba | 615 TX92F | At startup, synchronisation vertical as well as horizontal is very weak, after max. 15 minutes everything is ok. Sometimes there is no picture | First check all capacitors in the power supply. The real problem was spotted in the IF-area, the shielded space near the tuner: replace all capacitors there, especially the 2.2uF/100 volt type. I replaced it with a 3.3uF/100 volt type with excellent results! | ||
| Ferguson | 59K7 ICC5 | Severe vertical jitter on picture, horizontal sides of picture ragged | Replacing the TDA4950 cured the fault | ||
| Panasonic | TX-2470 | Cogging on vertical elements of picture, p.s.u squealing | Replaced C808 10uF, 50V It had gone low in value | ||
| Samsung | CB7230WT | vertical failure common fault | The reason for the failure is because the yoke is low impedance. The TDA3654Q i.c. has been designed to handle 12 ohms and over. Heat is the reason it destroys itself, the best cure is to place a small cpu fan on the heatsink |