Type: samsung ps425s tristar s42sd-yb05
Fragmentation: see figure below
Analysis and maintenance: first, the power plate groups of voltage output is normal, there are images that exclude the absence of short-circuit components, then self-censorship (the best way to repair the plasma image segment is by self-censorship), self-censorship images are abnormal, problems are locked on board y and logical panels, through reminders from other members ' groups of teachers after sale, the logical board is checked for drive signals to board y, the barrier values are not correct when ar 2009 is measured, and post-default failure is eliminated with a 47-eu blockage。
Type: japanese p50a101cm fault: on-board protection
Analysis and maintenance: first measure the buffer chip on the buffer, and one found to have burned. See figure below
This resulted in the replacement of the image of the buffer, but with a crude plaque phenomenon, similar to a line-scanning pattern, and the decisive replacement of the m661 on board y was resolved. See figure below:
The golden kfr-35/bp windpipe: several groups of maintenance masters have come to the door and have been unable to check the malfunction code. Then my friend called my client, and the next day i went to the door to check the fail code. The code is: ea, look at this machine's cap without this failure code. The eea is a four-valve anomaly. That's a shock! If you change four valves, you'll have to climb high and pull the mainframe back. At this point, it is considered that there is little chance that the valve will be broken by repairing many of these machines. A fresh look at the cause of the failure: it's hotter now, and there's no room for heating. The four valve abnormalities are reported in the mode of cooling, and the only detection is the high temperature of the tube detected by the indoor tube sensor, which allows the four valve abnormalities to be reported. (in order to prevent cold wind from blowing, all brands of software are designed to be activated by compressors and only when the temperature of the indoor tube meets the requirements.) the high temperature of the cooling mode pipe is one of four valves and two of the temperature of the tube is abnormal. (the temperature sensor is broken by four different methods: one is more than n. Two is short. 3 is that the barrier is fixed only for 1 to 2 k. 4 is a short lead route between the copper shell and the sensor because the shell is connected to the ground, and the negatives of the control plate are very much connected to the shell.) the temperature sensor of the tube is only 1. 2 k. The large gold air-conditioning tube temperature sensor is 20 k and the environment is measured at 25-30 degrees to be around 16-18 k. Everything is normal with the replacement of the sensor, the whole machine is out of power and re-entry. Note: the failure of the gala must be eliminated before the power goes off before the failure code is automatically eliminated
