Konka rear projection TV 4310 start slow image instability failure repair example - Appliances

DFN1006 TP-RCLAMP3321P ESD Diode Low Capacitance

In the past few days, a Konka rear-projection 4310 TV was overhauled. It was slow to start after about 2 minutes, but the image appeared but left and right. [At that time, there was no maintenance price because it was a regular customer].
The disassemble test main power supply slowly rises from 70 volts to 110 volts. At this time, an image appears. This phenomenon should be the main power supply filter capacitor without capacity. In the heart of the sneak peek, but the large capacitor on the power board was found and the faulty original was not found. This type of machine power board has three layers to remove some effort. I can't help but feel that the phenomenon of urgency is not a big problem. It is definitely a matter of power supply. How can I not find it? [Three electrolysis near the thick die of the power supply and the diode triode are all measured again] Unconsciously, more than one hour has passed. The user asked what can be repaired, and my face was a little red and I was able to fix it but I needed to check the drawings, so I left. In the afternoon, the user called and said, I was anxious to ask if I could fix it on the same day. Otherwise, the leader would send it to the manufacturer. [User is a guest house] I told you that I have not found the drawings and I will send them. I am so depressed that I can’t fix it. Just put this down and leave it busy. Who knows two days later, the user came to the phone and said that he did not send the manufacturer to find a engineer to repair 750 yuan. The leader was angry and thought that it was 10 years ago. This broken TV should have been eliminated now. The 32-inch LCD is only 2000 yuan and the 750 is not repaired. The man is leaving, I hope I can find a way to fix it because I am not black. So I checked the drawings on the Internet and looked at the analysis. The fault should be the voltage regulator. So I took a se110 and 10-dimensional capacitor to pump myself to the user. After the arrival, do not use the meter to directly replace the se110 next to the capacitor to turn on the power ok. Look carefully this capacitor looks good just a little leak at the root of the leg.