The equipment's out of order for half a day, the factory's down every second burning money, sweating all over the place
Half a year of self-study circuit board maintenance, drawings don't understand, failure detection, spare parts changed, time wasted and money spent
It's expensive and slow to get someone else to fix it
Who hasn't stepped on a pile of pits, whether it's maintenance of plant equipment, maintenance of working-controlled servers, or new searches
It seems that the problem is small and the problem is complicated by the problem; it is difficult to find the point of failure, but it is not easy to do it in the first place。
Even more worrying is the lack of direction in trying to upgrade technology: web-based information is messy and fragmentation is not useful; no one has a pointer, no one else has to die because of a problem; there are no hands-on trainers, no theories are ripe, no hands-on, no access to complicated lists。
In fact, it's not that hard to fix the circuit boards, find the right way, locate a lot of troubles in 10 minutes, and get a new guy to do it quickly, share three practical little tricks, and help you lower the pit:
1. First reading and then detection: observation of whether the circuit board has burn marks, drums, loose welding points before electricity is available, 80 per cent of the obvious failure can be detected in the eye and blindly extended electrical failure avoided
2. Process-based measurement of key points: priority of power source voltage, re-opening of circuits, final screening of chips, step-by-step non-disturbation, and freshman clarity
3. Preparation of basic tools: a table + oscillator + a hot wind gun, a tool that is paired, with half of the time to screen, without repeated error。
The new ones are the most taboo, unteachable and unmanageable, and are prone to a “teaching, inexperienced” cycle of death; old maintenance needs to break through bottlenecks and update thinking and develop new trouble-screening logic in order to deal with the complex problems of working controls and servicing the transformer circuit boards。
Have you ever encountered a failure in detections? Or have you been studying for a long time and you still can't pick up the actual list? The comment section says you have the most headaches in your maintenance. Let's talk about it
The repair of circuit boards is empirical and, above all, methodological, with the right ideas, which can improve the efficiency of the maintenance and reduce the number of innocent roads. The next time this dry stuff's in the system, it's going down, it's going straight to the screen, it's going to save time, and don't forget to forward it to the maintenance team, so let's move up the technology
