Skyworth color TV (5T361 movement) strange fault has finally been repaired - android - Phones Developers

The machine is Skyworth 5T361 movement, the bulk is 8829, the power supply is STR G9656, the field sweep is LA7841, the sound is ta8246
The phenomenon of failure is shown in the figure. This is a continuous process, and only one of them appears. The duration ranges from a few seconds to a few minutes. Sometimes it can be viewed more than half of the head. When the fault occurs, the line pack has a large squeak, and the output voltage of the line packet becomes low. The output level of the regular check line is not found. Abnormal, the measured line current is close to 500mA. When the fault occurs, the power supply current limiting resistor is quickly hot, red, the air push and the normal inspection of the pillow school are normal, the power supply is always normal, and the circuit board is removed to another picture tube. .
After a few days of hard work, combined with the wonderful reply of the replies, finally repaired the machine, and now share the repair results to everyone: faulty components are: line push tube 2482 performance is poor, 8829 lines [shock] part of the power supply resistance [47 ohms] Slightly large and unstable, the actual measurement is about 50-60 ohms, sometimes normal. After replacing these two components, the fault no longer occurs. As for why these two components are bad, it will cause such a strange fault. Welcome to continue to explore.