请教LED43EC520UA 打印信息如何解读

我爱搞维修

接修一台海信LED43EC520UA的电视，主板号是rsag7.820.6299/roh,故障为开机就亮红灯，测试电源板输出都正常，PFC电路都启动了，主板各级信号电路所需的电压都正常输出，打印信息如下：
Bootrom start
Boot from eMMC
Starting fastboot ...


System startup

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

* irq: undefined instruction

请版主和同行们帮忙分析下故障点在哪里？

chentong7

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