请老师看看这个TCL电视MS848C机芯打印信息

邯魏家电

不开机指示灯不亮，亲指点一下维修方向，多谢
2023-4-22, 17:47:38
COM6, BaudRate:115200 bps, RXD: VGA->12,TXD: VGA->15, Printed by RT809H:

UART_115200


AC_ON
01-2L-DM-05-20200107
MIU0_DQS-OK
BIST0-OK
BIST1-OK
FT....
A#_eMMC_RPMB_Check_Program_Key
*NOTICE:  BL3-1: v1.1(debug):a1acd7d
NOTICE:  BL3-1: Built : 00:57:42, Jun  8 2018
INFO:    warmboot return address : 5cf35c00
INFO:    BL3-1: Initializing runtime services
ERROR:   From args : smp boot address not pass from teeloader
INFO:     [Booting] mstar_send_magic_ATF 344 
INFO:    BL3-1: Initializing BL3-2
[Ramlog] ramlog_init init success

INFO:    BL3-1: Preparing for EL3 exit to normal world
INFO:    BL3-1: Next image address = 0x20100abc
INFO:    BL3-1: Next image spsr = 0x1d3
INFO:    BIN1_32bit mode Jun  8 2018 00:57:40
INFO:    R1 0
INFO:    R2 0
INFO:    R3 0
U
Relocation Offset is: 01600000
[AT][MB][start ub][1076]


U-Boot 2011.06-svn76 (Aug 12 2021 - 15:35:37)


LIBCODE:Utopia LIBVER:2.1554359040 BUILDHASH: BUILDDATE:2019040414HDMITxRegisterToUtopia..................
[Utopia][SYS]: Function = SYSOpen, Line = 1215, current resource pri_shm content is: 0
[Utopia][SYS]: Function = SYSOpen, Line = 1234, [SYS INFO] OPEN INSTANCE...
create instance at 2ABF16B0 with private size 128 bytes at 2ABF1700
[Utopia][MIU]:
[MIU INFO] miu opencreate instance at 2ABF1788 with private size 104 bytes at 2ABF17D8
[WDT]Is WDT reset ? 0
[WDT]close WDT in  MstarSysInit!
create instance at 2ABF1848 with private size 60 bytes at 2ABF1898


uboot held at [2A9DDF60~2BD00000],size=013220A0
DRAM:  189 MiB
Now running in RAM - U-Boot at: 2B200000
 FFU: check start   FFU:eMMC is from SAMSUNG(15)   FFU: version is same, don't need update   FFU: now version = 9,
eMMC: HS400 200MHz
eMMC 14.55 GB [1D1EFF8h]

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忍者忍

EMMC问题吧