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②拆开原适配器,发现滤波电容(1000μF/25V)鼓包,怀疑已失容。将其更换后,12V电压恢复正常,故障排除。[例14]海信TPW-4218PPDP彩电,开机“三无”。分析与维修:拆机检查,发现压敏保护电阻SA8001爆裂,保险管F8001(8A)烧黑,检查其他元件正常,估
② disassemble the original adapter and found that the filter capacitor (1000μF / 25V) bulge, suspected to have lost capacity. After its replacement, 12V voltage back to normal, troubleshooting. [Example 14] Hisense TPW-4218PPDP color TV, boot “three no ”. Analysis and maintenance: disassemble inspection found SA8001 pressure-sensitive protection burst, fuse F8001 (8A) burn black, check the other components normal, estimated