帮忙看看这的打印信息哪里不对。海信55K20JD

任新全

如题所示，此机蓝灯亮不开机。能打印信息。可是咱看不懂是哪里故障。求大师们给看一下。哪里出了问题。
海信LED55K20JD。主板上12V,16V，PWM,STB电压正常，SW没有电压。也没有上屏电压，屏不亮.

2021-10-1, 15:23:13
COM4, BaudRate:115200 bps, RXD: VGA->11,TXD: VGA-> 4, Printed by RT809F:

PDWNC_Init
Boot reason: A/C power on!!update check revovery,adc value:255
LDR_CheckRecovery,needn't enter recover


Do USB upgrade
USB: Vbus turn up time = 207 ms, Max =0 ms.


No USB device.
USB upgrade stop
Boot reason: A/C power on!!Boot reason: A/C power on!!Org:0x30 Flags:0x30



Flash load lzhs header from 0x80000 to dram(0x1506020), size=2048
Decompression uboot to 0x00800000...


Flash load image from 0x80000 to dram(0x1506020), size=0x369d4
secure boot ok
LZHS start
LZHS done
Starting image...




U-Boot 2011.12.12 (Nov 17 2016 - 11:14:13)


DRAM:  624 MiB
WARNING: Caches not enabled
MMC:   HOST 1
Dev Num: 0, Timing Position: 0, Sample Edge: 0x00
90014A48:32473163:0401097770CC00D
id1:4A483247 id2:31630401
eMMC Name: UNKNOWN
Dev Num: 0, Timing Position: 1, Sample Edge: 0x00
Dev Num: 0, Timing Position: 2, Sample Edge: 0x11
: 0


0.0.0.0
In:    serial
Out:   serial
Err:   serial
Net:   Net Initialization Skipped
No ethernet found.
PDWNC_REBOOT_CMD_OFFSET contains
Hit any key to stop autoboot:  0
## Booting kernel from Legacy Image at 00008000 ...
   XIP Kernel Image ... OK
OK


Starting kernel ...


Uncompressing Linux... done, booting the kernel.

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.0.13 (gfkfcmo@ubuntu-num3) (gcc version 4.5.1 (GCC) ) #1 SMP PREEMPT Thu Nov 17 11:13:56 CST 2016
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c53c7d
CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: MT5880
Memory policy: ECC disabled, Data cache writealloc
====> PMEM BOOTMEM ALLOC <=====
allocating 49283072 bytes at   (null) (40000000 physical) for pmem arena
PERCPU: Embedded 7 pages/cpu @c0af5000 s4960 r8192 d15520 u32768
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 191264
Kernel command line: lpj=4571136 console=ttyMT0,115200n1 root=/dev/mmcblk0p5 vmalloc=512M no_console_suspend androidboot.carrier=wifi-only mtdparts=mt53xx-emmc:2M(uboot),2M(uboot_env),1M(misc),16M(recovery),16M(boot),500M(system),500M(userdata),500M(cache),1M(reserved),1M(channelA),1M(channelB),1M(pq),1M(aq),4M(logo),4M(bootlogo) mali_core_num=2 usbportusing=1,1,1,0 usbpwrgpio=-1,-1,-1,-1 usbpwrpolarity=-1,-1,-1,-1 usbocgpio=-1,-1,-1,-1 usbocgpiopolarity=-1,-1,-1,-1
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
allocated 2555904 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 624MB = 624MB total
Memory: 617156k/617156k available, 21820k reserved, 131072K highmem
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    DMA     : 0xffc00000 - 0xffe00000   (   2 MB)
    vmalloc : 0xdf800000 - 0xff000000   ( 504 MB)
    lowmem  : 0xc0000000 - 0xdf000000   ( 496 MB)
    pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
    modules : 0xbf000000 - 0xbfe00000   (  14 MB)
      .init : 0xc0008000 - 0xc0029000   ( 132 kB)
      .text : 0xc0029000 - 0xc049ff44   (4572 kB)
      .data : 0xc04a0000 - 0xc04d71e0   ( 221 kB)
       .bss : 0xc04d7204 - 0xc060f398   (1249 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
Preemptible hierarchical RCU implementation.
NR_IRQS:256
timekeeping_init done
ckgen Xtal:27000000 Hz
Console: colour dummy device 80x30
console [ttyMT0] enabled
Calibrating delay loop (skipped) preset value.. 1828.45 BogoMIPS (lpj=4571136)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
CPU: Testing write buffer coherency: ok
Calibrating local timer... 445.40MHz.
L310 cache controller enabled
l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x73440001, Cache size: 262144 B
CPU1: Booted secondary processor
Brought up 2 CPUs
SMP: Total of 2 processors activated (3656.90 BogoMIPS).
NET: Registered protocol family 16
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Version 1.0.24.
Bluetooth: Core ver 2.16
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
Switching to clocksource timer2
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 7, 786432 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (junk in compressed archive); looks like an initrd
Freeing initrd memory: 7244K
PMU: registered new PMU device of type 0
Power Management for MTK DTV.
highmem bounce pool size: 64 pages
ashmem: initialized
squashfs: version 4.0 (2009/01/31) Phillip Lougher
msgmni has been set to 963
io scheduler noop registered
io scheduler deadline registered
io scheduleSerial: MT53xxttyMT0 at MMIO 0xf000c000 (irq = 49) is a MT53xx Serial
ttyMT1 at MMIO 0xf000c000 (irq = 49) is a MT53xx Serial
ttyMT2 at MMIO 0xf0028800 (irq = 32) is a MT53xx Serial
ttyMT3 at MMIO 0xf000c000 (irq = 49) is a MT53xx Serial
brd: module loaded
loop: module loaded
pmem: 1 init
android_pmem: probe of android_pmem.0 failed with error -1
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
PPP MPPE Compression module registered
NET: Registered protocol family 24
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
star: desc addr: 0xffdff000(virtual)/0x1e0f5000(physical)
Star Ethernet: Internal Vitesse PHY

star: PHY addr = 0x0000
star: EthTool installed
star: Star MAC init done
MUC_init 5038: [USB]Controller in DMA mode
MGC_VBusControl 725: [USB0]Vbus Off gpio[-1].
MtkUsbHcd MtkUsbHcd.0: USB Host Controller
MtkUsbHcd MtkUsbHcd.0: new USB bus registered, assigned bus number 1
MtkUsbHcd MtkUsbHcd.0: irq 47, io mem 0xf0050000
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
MGC_VBusControl 725: [USB1]Vbus Off gpio[-1].
MtkUsbHcd MtkUsbHcd.1: USB Host Controller
MtkUsbHcd MtkUsbHcd.1: new USB bus registered, assigned bus number 2
MtkUsbHcd MtkUsbHcd.1: irq 43, io mem 0xf0051000
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
MGC_VBusControl 725: [USB2]Vbus Off gpio[-1].
MtkUsbHcd MtkUsbHcd.2: USB Host Controller
MtkUsbHcd MtkUsbHcd.2: new USB bus registered, assigned bus number 3
MtkUsbHcd MtkUsbHcd.2: irq 80, io mem 0xf0052000
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mousedev: PS/2 mouse device common for all mice
using rtc device, mt53xx_rtc, for alarms
mt53xx_rtc mt53xx_rtc.0: rtc core: registered mt53xx_rtc as rtc0
mt53xx_rtc mt53xx_rtc.0: MT53xx Real Time Clock driver.
adbattery: android dummy battery driver loaded
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.20.0-ioctl (2011-02-02) initialised: dm-devel@redhat.com
Bluetooth: Generic Bluetooth USB driver ver 0.6
usbcore: registered new interface driver btusb
Bluetooth: Atheros AR30xx firmware driver ver 1.0
usbcore: registered new interface driver ath3k
mmc0: 5880
at 0xf006d000 irq 100 data mode 3 Optimization
mmc1: 5880
at 0xf0012000 irq 60 data mode 3
[0][MsdcHandleGPIOIsr0, 0]---------------------->!
[0][MsdcHandleGPIOIsr0, 1]---------------------->!
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
logger: created 256K log 'log_main'
logger: created 256K log 'log_events'
logger: created 256K log 'log_radio'
logger: created 256K log 'log_system'
special_arg: 00000002
zram: num_devices not specified. Using default: 2
zram: Creating 2 devices ...
test mmc...
usbcore: registered new interface driver snd-usb-audio
ALSA device list:
  No soundcards found.
nf_conntrack version 0.5.0 (9756 buckets, 39024 max)
NF_TPROXY: Transparent proxy support initialized, version 4.1.0
NF_TPROXY: Copyright (c) 2006-2007 BalaBit IT Ltd.
ip_tables: (C) 2000-2006 Netfilter Core Team
TCP cubic registered
NET: Registered protocol family 10
ip6_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 17
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
mmc0: new high speed MMC card at address 0001
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
mmcblk0: mmc0:0001 H2G1c 1.76 GiB
mmcblk0boot0: mmc0:0001 H2G1c partition 1 1.00 MiB
mmcblk0boot1: mmc0:0001 H2G1c partition 2 1.00 MiB
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 3
mt53xx_rtc mt53xx_rtc.0: setting system clock to 2000-01-part 01: startblk 0x00000000, blkcnt 0x00001000, <uboot>
part 02: startblk 0x00001000, blkcnt 0x00001000, <uboot_env>
part 03: startblk 0x00002000, blkcnt 0x00000800, <misc>
part 04: startblk 0x00002800, blkcnt 0x00008000, <recovery>
part 05: startblk 0x0000a800, blkcnt 0x00008000, <boot>
part 06: startblk 0x00012800, blkcnt 0x000fa000, <system>
part 07: startblk 0x0010c800, blkcnt 0x000fa000, <userdata>
part 08: startblk 0x00206800, blkcnt 0x000fa000, <cache>
part 09: startblk 0x00300800, blkcnt 0x00000800, <reserved>
part 10: startblk 0x00301000, blkcnt 0x00000800, <channelA>
part 11: startblk 0x00301800, blkcnt 0x00000800, <channelB>
part 12: startblk 0x00302000, blkcnt 0x00000800, <pq>
part 13: startblk 0x00302800, blkcnt 0x00000800, <aq>
part 14: startblk 0x00303000, blkcnt 0x00002000, <logo>
part 15: startblk 0x00305000, blkcnt 0x00002000, <bootlogo>
mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15
mmcblk0boot1: unknown partition table
mmcblk0boot0: unknown partition table

RAMDISK: gzip image found at block 0
special_arg: 00000001
[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

[0]----->Go into Command Tune!
[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

[0]CMD8 ARG 0x000001AA - CMD Timeout (AccuVect 0x00000200 INTR 0x00000000).

test sd...

special_arg: 00000001
test sd...
UDF-fs: No partition found (1)
List of all partitions:
b300         1847296 mmcblk0  driver: mmcblk
  b301            2048 mmcblk0p1 00000000-0000-0000-0000-000000000000mmcblk0p1
  b302            2048 mmcblk0p2 00000000-0000-0000-0000-000000000000mmcblk0p2
  b303            1024 mmcblk0p3 00000000-0000-0000-0000-000000000000mmcblk0p3
  b304           16384 mmcblk0p4 00000000-0000-0000-0000-000000000000mmcblk0p4
  b305           16384 mmcblk0p5 00000000-0000-0000-0000-000000000000mmcblk0p5
  b306          512000 mmcblk0p6 00000000-0000-0000-0000-000000000000mmcblk0p6
  b307          512000 mmcblk0p7 00000000-0000-0000-0000-000000000000mmcblk0p7
  103:00000     512000 mmcblk0p8 00000000-0000-0000-0000-000000000000mmcblk0p8
  103:00001       1024 mmcblk0p9 00000000-0000-0000-0000-000000000000mmcblk0p9
  103:00002       1024 mmcblk0p10 00000000-0000-0000-0000-000000000000mmcblk0p10
  103:00003       1024 mmcblk0p11 00000000-0000-0000-0000-000000000000mmcblk0p11
  103:00004       1024 mmcblk0p12 00000000-0000-0000-0000-000000000000mmcblk0p12
  103:00005       1024 mmcblk0p13 00000000-0000-0000-0000-000000000000mmcblk0p13
  103:00006       4096 mmcblk0p14 00000000-0000-0000-0000-000000000000mmcblk0p14
  103:00007       4096 mmcblk0p15 00000000-0000-0000-0000-000000000000mmcblk0p15
b310            1024 mmcblk0boot1  (driver?)
b308            1024 mmcblk0boot0  (driver?)
No filesystem could mount root, tried:  ext3 ext2 ext4 squashfs vfat msdos iso9660 udf
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,5)
[<c0033efc>] (unwind_backtrace+0x0/0xe4) from [<c037fd40>] (panic+0x68/0x188)
[<c037fd40>] (panic+0x68/0x188) from [<c0008d6c>] (mount_block_root+0x238/0x288)
[<c0008d6c>] (mount_block_root+0x238/0x288) from [<c00098dc>] (initrd_load+0xa4/0x310)
[<c00098dc>] (initrd_load+0xa4/0x310) from [<c0008fcc>] (prepare_namespace+0xc4/0x1b8)
[<c0008fcc>] (prepare_namespace+0xc4/0x1b8) from [<c00089f4>] (kernel_init+0x124/0x160)
[<c00089f4>] (kernel_init+0x124/0x160) from [<c002f4ec>] (kernel_thread_exit+0x0/0x8)
CPU0: stopping
[<c0033efc>] (unwind_backtrace+0x0/0xe4) from [<c0029368>] (do_IPI+0xc8/0x198)
[<c0029368>] (do_IPI+0xc8/0x198) from [<c002e6ac>] (__irq_svc+0x4c/0xe0)
Exception stack(0xc04a1f68 to 0xc04a1fb0)
1f60:                   00000000 00000000 c04a1fb0 00000000 c04a0000 c04af48c
1f80: c04d72e4 c0384934 0000406a 413fc090 00000000 00000000 de9aa044 c04a1fb0
1fa0: c002f548 c002f54c 60000013 ffffffff
[<c002e6ac>] (__irq_svc+0x4c/0xe0) from [<c002f54c>] (default_idle+0x24/0x28)
[<c002f54c>] (default_idle+0x24/0x28) from [<c002f824>] (cpu_idle+0x7c/0xdc)
[<c002f824>] (cpu_idle+0x7c/0xdc) from [<c0008868>] (start_kernel+0x2bc/0x324)
[<c0008868>] (start_kernel+0x2bc/0x324) from [<0000803c>] (0x803c)

亿通家电

大块与字库二者有其一，两个原件都是常坏器件，建议先换新字库 写引导然后U盘升级 试试，但也有写完引导 U盘无法升级的就需要更换大块MT5505

wadopin

试着U 盘升级一下，不行就换EMMC写个备份。

任新全

wadopin 2021-10-1 17:08
试着U 盘升级一下，不行就换EMMC写个备份。

刚才下了个数据55K20JD,0001,BOM2的数据。按主板贴纸上的字符找的数据，能开机了，但是倒屏，和花屏。连续换了2个0001的都是倒屏。纳闷了，坑定是数据不对。继续找数据

技术为本

学习啦。

任新全

谢谢各位，刷了好几个0001.BOM2的数据都是倒屏，花屏。试着刷了0002.BOM3的数据，奶奶的一切正常了。电视机里面的贴纸确实是0001.BOM2.的。我才想厂家使坏故意整这一处。

wadopin

修好了就能收钱了，祝贺