创维8G20机芯47液晶黑屏故障求助,详见贴内内容.谢谢.

烙铁坏了

创维47的液晶，8G20机芯,LG屏,不开机,只拿了两块电源板和主板.     通电检查SCL电压为0.3V,SDA为3V.背光开关脚3V,调光脚0V,逻辑板没有12V供电.指示灯有时不亮，有时几分钟后蓝灯。用串口线接在预留的插座CN88上，检测显示如下:patchversion= 0x%x#.等待三分钟后显示:    ==> Through MVFoInput UserPrefPipMode=%d ?y/4G,           此时,逻辑板有12V供电,但是背光开关脚电压为1V左右,调光脚电压为5V. SCL和SDA电压上升到3V3.  LVDS线上差分信号的电压为1.8V和0.6V.  换空白的EEPROM故障不变,怀疑FLI30336通讯异常,在给某集成块的信号无应答,所以时钟脚一直是低电平,不知FLASH是不是数据丢失,如果是,请提供FLASH数据.   如果不是,请大师们指点.谢谢.

烙铁坏了

全部的打印信息如下：
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
Timeout while waiting for response.
Timeout while waiting for response.
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
patchversion= 0x0
Func AudioInit UserPrefCurrentInputMain
Func SelectAudioInput b_input=0 b_output=0
Func SelectAudioInput b_input=8 b_output=1
Func SelectAudioInput UserPrefPipMode=0
Func SelectAudioInput b_input=0 b_output=1
Func SelectAudioInput UserPrefPipMode=0
Func SelectAudioInput b_input=0 b_output=1
Func SelectAudioInput UserPrefPipMode=0
Que full
Que full
等3分钟后再显示：

SKYWORTH 8G20 - FLI30336 AC + Skyworth 1st PCB

PANEL:LG_LC320_W01
Firmware V1.0 - Dec  4 2007 16:19:07

Demo Firmware Ver - V2.6.05
May 3, 2007 10:45 AM
==========================================
PAL_TV_SYSTEM

SYS Lib Ver - V2.6.05
April 24, 2007 05:00 PM

OSD Lib Ver - V3.0.09
July 11, 2006 12:00PM

DEC Lib Ver - VID_DEC_VER: V1.6RC5A
VID_DEC_BUILT ON: December 14,2006

DRV Lib Ver - V1.0.08
February 23, 2007,  09:45PM