Analysis and Repair: Upon inspection of the standby control circuit, no abnormal phenomena were found. When the automatic shutdown occurred, it was measured that the power control end (pin 41) of the CPU had a high potential. Further measurement of the voltages at each pin of the CPU revealed that the reset voltage at pin 33 was only 3.1V (normally 4.9V). Inspection of the reset circuit found that ceramic capacitor C016 was faulty. After replacing C016, the problem was resolved. The issue arose because the reset voltage of the CPU would intermittently drop, causing incorrect actions in the control circuit, leading to a high output potential at pin 41, which in turn caused the automatic shutdown phenomenon.
Source: Beijing Skyworth TV Repair Center [http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3687333](http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3687333).
Skyworth CTV-2140 TV, intermittent automatic shutdown ★ Fault Phenomenon: Intermittent automatic shutdown. Fault-related Circuit: Peripheral circuit of the CPU. Fault Location: C016 faulty. Methods, Techniques, and Tips: Faults caused by the CPU reset circuit.