Common fault of Ares K650D-G6D1 not turning on

Common fault of Ares K650D-G6D1 not turning on.

K650D-G6D1, the station god, brought it to me and said that sometimes it can be turned on, and sometimes it can only be turned on after 20 times. When the power supply is connected, there is no standby current, and the amount of 3V is normal, only after 5V is turned on. Check.blueprintThe three resistors of U49 are all connected with 19V. It is found that there is a 10K resistor with 19V at one end and 2.5V at the other end. The three resistors are 10K and 1M 10K respectively, which are 19V perishable, and the machine was successfully turned on after the 10K resistor and 1M resistor were replaced.

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