Shenzhen Xintian source Electronics Co., Ltd.
Address：Hongfa Industrial Park 1, 5th Floor, Shiyan Town, Baoan District, Shenzhen
CRT high voltage ignition failure also monitor repair one of the most common problems. Mainly for the screen raster highlights the emergence of many erratic, severe lines into dotted, sometimes also hear the machine "creak" sound, if the ignition is serious, will cause image blur, and may in a few seconds or minutes after the emergence of the phenomenon of the disappearance of the grating. Cause and significant parts of the tube high voltage ignition produce more, are: high voltage ignition inside the seat tube; tube high-pressure or high-pressure nozzle cap ignition; high-voltage ignition coil ignition lead terminals; focusing potential ignition internal poor contact, etc. . Here we were to say about their service approach.
1. The seat tube seat tube ignition repair ignition generally focus electrode. Generate internal seat tube ignition due mainly to monitor the use of the environment is too humid or long-term without cause. Due to the focusing electrode voltage is high among 4KV ~ 9KV, repair method is to turn off the power, remove the stem from the tail-board, with a knife or fine sandpaper to scrape off the rust pin, then pure alcohol clean, and the inner wall of the tube socket plastic rust cleaned with alcohol, and then use a hair dryer, then re-installed.
2. The high-pressure nozzle or a high pressure cap tube around the tube high voltage spark ignition around the mouth, in addition to the humid environment, but there are significant contacts between the high-pressure tube does not close the mouth and cone glass or related impurities. To repair the high voltage ignition mouth, come to their discharge, the method is the large flat Solutions knife with wooden handle, insert many contacts in the high-pressure nozzle plate can be, and sometimes also hear the "pops" discharge sound. Then remove the high pressure cap retainer check whether the high-pressure and high-pressure nozzles rust around whether the ignition signs and fouling. If, in accordance with the former method to clean, then dry it with a hair dryer, pay attention to the temperature and time, in order to avoid local overheating and significant pipe burst. Then evenly coated with some butter around the high-pressure nozzles, high pressure cap can be buttoned.
3. ignition coil and spark ignition coil ignition focusing potential grating can cause blurred or no grating. If the ignition coil ignition itself, it can only get a new one. If the ignition coil ignition lead terminals available pure alcohol to clean, drop a little insulating varnish can. If it is focusing potential ignition coil on the ignition, after adjusting the focus potentiometer can be shut down several times to see if it becomes better contact with the internal contacts. If this is not, it is best to be replaced.