⑴ 主板炸了是什麼
主板炸了應該是電解電容器碎削（較多見）其它次之。
1-下圖電解電容器：下圖右側電解電容殼體內溫度升高，爆飛殼子後樣子。
ps://iknow-pic.cdn.bcebos.com/9358d109b3de9c829ba09d8f6081800a18d843ec?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"/>
ps://iknow-pic.cdn.bcebos.com/9358d109b3de9c829ba09d8f6081800a18d843ec?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"/>