来个师傅帮我看一下打印信息

huang同川

这个电视机主板：RSAG7.820.5277/ROH,通电指示灯蓝色，电源板上16V有，12v有，STB3.66V,sw0V,pmw0V,主板上屏供电12V没有，我是入行没多久不是很懂，英文也看不懂，大家帮我看看打印信息是哪里出问题了，我先谢谢大家了

huang同川

谢谢大家；了

喜乐家电

强制开机试试

chinazxb

是PMW0V?还是PWM0V?

技术为本

路过，进来学习。

huang同川

喜乐家电 2020-3-5 20:03
强制开机试试

电源板没问题
来自: 微社区

huang同川

001:  序列号：20190115093757-026291  ,PCB V1.80,Boot V1.00
002:  >------------------------------------OK---------------------------------------<
003:  C:\Users\Administrator.USER-20190218RS\Desktop\Print.log
004:  COM6, BaudRate:115200 bps, RXD: VGA->15,TXD: VGA->12,
Boot-
DRAM Channel A Calibration.
Byte 0 : Gating(2 ~ 62), Size=61, Mid=32, Set=32.
Byte 1 : Gating(2 ~ 52), Size=51, Mid=27, Set=27.
Byte 2 : Gating(2 ~ 67), Size=66, Mid=34, Set=34.
Byte 3 : Gating(2 ~ 62), Size=61, Mid=32, Set=32.
HW Byte 0 : DQS(11 ~ 42), Size 32, Set 26, HW_Set 29.
HW Byte 1 : DQS(9 ~ 42), Size 34, Set 25, HW_Set 27.
HW Byte 2 : DQS(13 ~ 43), Size 31, Set 28, HW_Set 29.
HW Byte 3 : DQS(10 ~ 43), Size 34, Set 26, HW_Set 29.
DRAM A Size = 768 Mbytes.
Boot

Start Pmain

0x0000a000
EMMC boot

CID:0x11b721e7
:0x040100df
:0x32473163
:0x90014a48
LZHS addr:0x00100040
LZHS size:0x000a73c0
LZHS checksum:0x0000000e

renxiaoyao

5277板子引导容易出错。这个需要烧写引导程序。

huang同川

用换EMMC吗
来自: 微社区

huang同川

001:  序列号：20190115093757-026291  ,PCB V1.80,Boot V1.00
002:  >------------------------------------OK---------------------------------------<
003:  请先选择芯片再操作。
004:  C:\Users\Administrator.USER-20190218RS\Desktop\Print.log
005:  COM6, BaudRate:115200 bps, RXD: VGA->15,TXD: VGA->12,
006:  C:\Users\Administrator.USER-20190218RS\Desktop\Print.log
007:  COM6, BaudRate:115200 bps, RXD: VGA->15,TXD: VGA->12,
Boot-
DRAM Channel A Calibration.
Byte 0 : Gating(2 ~ 57), Size=56, Mid=29, Set=29.
Byte 1 : Gating(2 ~ 47), Size=46, Mid=24, Set=24.
Byte 2 : Gating(2 ~ 62), Size=61, Mid=32, Set=32.
Byte 3 : Gating(2 ~ 57), Size=56, Mid=29, Set=29.
HW Byte 0 : DQS(11 ~ 42), Size 32, Set 26, HW_Set 29.
HW Byte 1 : DQS(8 ~ 42), Size 35, Set 25, HW_Set 27.
HW Byte 2 : DQS(13 ~ 43), Size 31, Set 28, HW_Set 29.
HW Byte 3 : DQS(10 ~ 43), Size 34, Set 26, HW_Set 28.
DRAM A Size = 768 Mbytes.
Boot

Start Pmain

0x0000a000
EMMC boot

CID:0x11b721e7
:0x040100df
:0x32473163
:0x90014a48
LZHS addr:0x00100040
LZHS size:0x000a6990
LZHS checksum:0x00000035
Boot

Start Lmain



MT5880 Boot Loader v0.9
Boot reason: A/C power on!!
Load VGA internal EDID.................
use code based  EDID.................
Load HDMI internal EDID.................
CEC Physical offset 152
HDMI1 Physical adr 0x10
HDMI1 PA 0x10
HDMI1 checksum 0xdf
HDMI2 PA 0x10
HDMI2 checksum 0xdf
HDMI3 PA 0x20
HDMI3 checksum 0xcf
HDMI4 PA 0x30
HDMI4 checksum 0xbf
SIF_Master0: new design
IR DATA register : 0x       0
Boot reason: A/C power on!!T8032 init A/C on case loader stage...
Load T8032 FW (addr: 0x  d81460, size: 24576)success!!
T8032 FW version: 73
T8032 change to loader stage...
LDR_FlashCopy 0xf010 0x59a80 0x80
1st MAC in EEP is invalid! (4f:f0:7f:f5:94:01)
Both MAC in EEP is invalid! Need write by cli mac
1st : (4f:f0:7f:f5:94:01), checksum(9f) error
2nd : (e5:94:11:9f:e5:00), checksum(10) error
EEPEtherMAC_Read() fail -1
Use default Eth MAC address: 00:0c:e7:06:00:00
PDWNC_Init
Boot reason: A/C power on!!
Do USB upgrade
USB: Vbus turn up time = 215 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=0x36890
secure boot ok
LZHS start
LZHS done
Starting image...




U-Boot 2011.12.12 (Nov 28 2013 - 19:24:32)


DRAM:  624 MiB
WARNING: Caches not enabled
MMC:   HOST 1
Dev Num: 0, Timing Position: 0, Sample Edge: 0x00
90014A48:32473163:040100DF:11B721E7
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


no valid boot image!
mt5880 # 这是刷完引导后打印出来的信息，那个师傅帮我看一下