& lt
D== sync, corrected by elderman == @elder man{\chffffff}{\ch00ffff} {\chffffff}{\ch00ffff} {\chffffff}{\ch00ffff} {\chffffff}{\ch00ffff} {\chffffff}{\ch00ff00} {\chffffff}{\ch00ff00} {\chffffff}{\ch00ff00} {\chffffff}{\ch00ff00} {\chffffff}{\ch00ff00} {\chffffff} .."alt ="
'm2 k3?--i) n9|g7z
& lt
> working principle: when power is added to the power, the auxiliary power starts with the creation of the vref (lm 393, also vref), the three feet of tl 494 provide lower voltage, the triode a733 conductor, and the one foot of lm 393 has a low output level. When the atx power is turned on, the main transformer circuit works, the three feet of tl494 maintain a high level of power, leaving the diode a733 in a cut-off state, and vref recharges through the capacitation (4. 7uf), after a delay, output of the p. G. Signal of +5v, and the mainframe starts work. When the power output voltage is reduced, the detection voltage delivered to tl 494 is reduced, and if the voltage is reduced beyond the rated range, the three feet of tl 494 will be lowered to a low level, the tripolar a733 conductivity will make the one foot output of lm 393 low and the mainframe will stop working. *
~3y: a$z0 t%{y (d:i)
(b) fault clearance: in the case of the above-mentioned malfunctions, check the vref (base voltage) power supply. If the power supply is normal,1 the lm393 integrated circuit is broken, p. G. Signals are consistently low-level, 2-triode a733 short circuits, and p. G. Signal clamps are located at low-level. Due to the low working voltage of this part of the circuit, the resistance element rarely fails. When the damaged component is exchanged more, the malfunction can be eliminated。
0 v8 x*n' ~ i5d'e;
9d
Guide to kyoto's request for automatic gearbox maintenance technology dismantling and spectrometry s
As a 10-year-old gun in a deep-earned gearbox repair ring, i've seen too many car owners fix their troubles because they can't find a maintenance facility.the fact that the electromagnetic valve is stuck, the fact that the entire valve has been removed by the white house, which spends thousands more, and leaves behind the after-effects of the setback. Today, the core logic of automatic gearbox maintenance is removed from the bottom of the technol
0评论2026-08-18145
White paper on diagnostic and maintenance norms for new energy transformer case failure in beijing
There are currently more than 18 million new energy vehicles in the country, including more than 520,000 in beijing, accounting for more than 16 per cent of the total city-wide motor vehicle stock. As vehicle mileage increases, the failure of the new energy transformer is becoming a central pain in the area of protection. According to data from the chinese association of automobile maintenance industries in the first quarter of 2026, the failure
0评论2026-08-18134
How long does mi's phone last
Today, mobile phone brands, such as wawa's mobile phone, oppo's phone, vivo's phone, millet's phone, red rice's phone, may be different from their warranty period and associated maintenance regulations. And when we buy a mobile phone, in addition to some knowledge of its basic parameters of appearance, performance, price, etc., we need to focus on its after-sales services, such as warranty periods and methods of applying for warranty, which are a
0评论2026-08-1782
Mi2 dismantling method
Mi, which has been growing in recent years and is growing in number of users, has been innovative and closely following the pace of change. Mi2 is one of the classic mobile phone products of millimetres, which is very popular and highly sold. Some people, out of curiosity, want to know the inner structure of the cell phone when they get it, others, the time it takes to get rid of the dust, which requires some knowledge of how to demanage the cell
0评论2026-08-1799
What's the function of mi ring 2
There are more and more people who like sports, not only young friends, but also older friends, who can see so much every day in the park, and we're getting more and so much more physical awareness, so how do we always count and measure when we exercise!Assessment:Let's start with a brief description of the changes in the millimetre bracelet 2 by adding an oled screen that supports the display of basic information, such as time, steps, heart rate
0评论2026-08-1770
How long does it take to charge the rice ring
Mi has been popular with a wide range of consumers since she came on the market, and mi's cell phone has been called a national miracle. There's a lot of electronics other than cell phones, computers, tablets, routers and watches, and there's a little rice bracelet. How many friends can charge the rice bracelet in their hands and how long it's not clear, so let's give you a detailed presentation today!How to charge the millet bracelet:First of al
0评论2026-08-17141
