求大家帮忙，海尔LU58C51--板号HRT962有时可开机。

修电视

海尔LU58C51--板号HRT962有时可开机，有时不开机，板上各路电压都正常，求大家帮忙指点下，先谢谢啦。
附上打印，2022-10-14, 16:36:6
COM6, BaudRate:115200 bps, RXD: VGA->15,TXD: VGA->12, Printed by RT809F:

TXL:BL1:1ef924:56431c;FEAT:ADFC318COC:1;RCY:0;EMMC:0;READ:0;CHK:AA;SD:800;USB:8;LOOP:1;EMMC:0;READ:0;CHK:AA;SD:800;USB:8;LOOP:2;EMMC:0;READ:0;CHK:AA;SD:800;USB:8;LOOP:3;EMMC:0;READ:0;CHK:AA;SD:800;USB:8;LOOP:4;EMMC:0;READ:0;CHK:AA;SD:800;USB:上面是不开机的打印，
下面是正常开机打印。
2022-10-14, 10:55:26
COM6, BaudRate:115200 bps, RXD: VGA->15,TXD: VGA->12, Printed by RT809F:

TXL:BL1:1ef924:56431c;FEAT:ADFC318COC:1;RCY:0;EMMC:0;READ:0;0.0;CHK:0;
TE: 116897


BL2 Built : 16:15:30, Sep 20 2018.
txl g11fcc28 - xiaobo.gu@droid12


set vcck to 1100 mv
set vddee to 1000 mv
DRAM reset...
init panel power
--------------bt gpio set low---------------
--------------bt gpio set high---------------
Board ID = 2
CPU clk: 1200MHz
DDR enable rdbi
DQS-corr enabled
DDR scramble enabled
DDR3 chl: Rank0+1 @ 792MHz
ddr_training_inf: rank: 0  org_wr0  w0_l  w0_r  org_r0  r0_l  r0_r org_wr1  w1_l  w1_r  org_r1  r1_l  r1_r  org_wr2  w2_l  w2_r  org_r2  r2_l  r2_r org_wr3  w3_l  w3_r  org_r3  r3_l  r3_r
af_vrefddr_training_win: rank: 0 2a 00 52 34 07 64 27 00 4d 3c 0b 6d 24 00 4b 44 13 73 24 00 47 45 16 79 664  rank: 1 29 00 52 35 07 64 26 00 4d 3c 0b 6d 25 00 4b 43 13 73 23 00 47 47 16 79 664  
bist_test rank: 0 27 03 4c 34 15 53 25 00 4a 39 1a 58 22 01 43 3f 20 5e 20 00 41 42 25 5f 664  rank: 1 27 04 4a 34 14 54 24 00 49 39 1a 59 21 00 42 40 21 5f 20 00 40 41 23 5f 664   bist_size0x 000007e0 bist_cost_time 151792 us bist test no threshold setting:
ddr_refi_counter78


Rank0: 1024MB(auto)-2T-11


Rank1: 1024MB(auto)-2T-11
DataBus test pass!
AddrBus test pass!
-s
Load fip header from eMMC, src: 0x0000c200, des: 0x01400000, size: 0x00004000
Load bl30 from eMMC, src: 0x00010200, des: 0x01100000, size: 0x0000d600
Load bl31 from eMMC, src: 0x00020200, des: 0x10100000, size: 0x00015400
Load bl33 from eMMC, src: 0x00038200, des: 0x01000000, size: 0x000a0400
NOTICE:  BL3-1: v1.0(debug):3fb6b3e
NOTICE:  BL3-1: Built : 16:45:24, Sep 21 2016
aml log : bl31 normal boot !
[Image: txl_v1.1.3156-4163483-dirty 2016-10-18 20:57:12 qiufang.dai@droid07]

OPS=0x02

9c 81 64 75 38 20 1e 36 9a 43 a3 e3 [1.352171 Inits done]

secure task start!
high task start!
low task start!
INFO:    BL3-1: Initializing runtime services
WARNING: No OPTEE provided by BL2 boot loader
ERROR:   Error initializing runtime service opteed_fast
INFO:    BL3-1: Preparing for EL3 exit to normal world
INFO:    BL3-1: Next image address = 0x1000000
INFO:    BL3-1: Next image spsr = 0x3c9



U-Boot 2015.01-00155-g1681974 (Jul 13 2020 - 14:51:27)


DRAM:  2 GiB
Relocation Offset is: 76ed5000
register usb cfg[0][1] = 0000000077f5c4f0
MMC:   aml_priv->desc_buf = 0x0000000073ed5640
aml_priv->desc_buf = 0x0000000073ed7960
SDIO Port B: 0, SDIO Port C: 1
emmc/sd response timeout, cmd8, status=0x1ff2800
emmc/sd response timeout, cmd55, status=0x1ff2800
[mmc_startup] mmc refix success
[mmc_init] mmc init success
mmc read lba=0x14000, blocks=0x400
      Amlogic multi-dtb tool
      Single dtb detected
start dts,buffer=0000000073eda1b0,dt_addr=0000000073eda1b0
parts: 11
00:      logo

修电视

自从上次机器有时可开机我是将所有芯片都焊下来搞啦一片，钱没拿到还买啦一堆钢网，且搞坏一片962，更头疼的是早2天读EMMC将数据搞坏啦，要不今天我就可以告述大家，这台机器打印出现一行字且重复那就是EMMC坏，可惜809H还不能搞这该死的江波龙，今天，我上一8G东芝5.1版的，上4.7K下拉电阻，在爱修网下啦一个100金钱的不同版本数据写上，连好809F打印，上电来啦，打印出来啦，但还是不开机，可能是DDR不对，那版本是2块DDR的，我的是4块DDR的，但证明是EMMC问题，要是能搞江波龙，我上次备份那就好啦，故向有此版本的809H备份的我买来试下，改东芝EMMC看可以不，版本0091802209    V1.2

caoweixi1

修电视 2022-10-23 08:23
自从上次机器有时可开机我是将所有芯片都焊下来搞啦一片，钱没拿到还买啦一堆钢网，且搞坏一片962，更头疼 ...

海尔的这个T962基本都是EMMC问题，已修好三台
不过这个板一片才小几十元，这么花大成本没有必要吧。