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代换方法一:用μPC1185H代换μPC1278H,μPC1185H与μPC1278H只有⑨和⑩脚不同,代换时在印刷板电路上用小刀把⑨和⑩脚的线割断,然后把μPC1185H装到原来IC位置上,将⑨引脚用导线接到原⑩焊点上,⑩引脚改接到⑨焊点上,在⑤和⑧脚至反馈电容间分别接上1/16W的270Ω电阻即可。代换方法二:用TEA2024代换μPC1278H,各管
Replacement method one: Replace μPC1278H with μPC1185H, μPC1185H and μPC1278H only ⑨ and ⑩ feet are different, replace the printed circuit board circuit with a knife to ⑨ and ⑩ foot of the line cut off, and then loaded into the original IC μPC1185H IC position, The ⑨ pin leads to the original ⑩ solder joints, ⑩ pin connected to the ⑨ solder joints, ⑤ and ⑧ feet to the feedback capacitor were connected to the 1 / 16W of the 270Ω resistor can be. Substitution method two: replaced with TEA2024 μPC1278H, each tube