求助 小米 TPD.MS908.PB751 打印异常

C2211

小米3s 48寸。Mstar 908方案。上电待机，待机后遥控摇不了，偶尔有时候又可以。按键每次都可以。按了后驱屏就出来了，但是无法显示。打印也是卡住DRAM不前，谁碰到过这种状况啊。
UART_115200

AC_ON
BIST0-OK
BIST1-OK
_U
Relocation Offset is: 02300000
[AT][MB][start ub][387]

U-Boot 2011.06-00000-gcb0e25a (Jul 21 2017 - 10:12:54)

[NOS] UtopiaInit
1st UTOPIARegisterToUtopia is done[MBoot] Driver Register to UtopiaNJPEG_EXRegisterToUtopia(): start
NJPEG_EXRegisterToUtopia(): end

[CPU INFO] cpu opencreate instance at 336c7320 with private size 44 bytes at 336c7368
CPUIoctl - MDrv_CMD_CPU_QueryClock
[UTOPIA INFO] close moduleNames[38]: MODULE_CPU

cold boot,boot reason:wake_src is 0
msIR_Initialize
uboot held at [335ddf60~35500000]
CPU  : Napoli
Board: BD_MST071D_10AWVS_NAPOLI
get_hardware_version(), hw_ver = 1
HARDWARE ID: 0x1
DRAM:  341 MiB
Now running in RAM - U-Boot at: 34600000

eMMC: HS200 200MHz
eMMC 7.28 GB [E8FFF8h]
In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
Get MAC from eth_macaddr env
MAC:  0x0: 0x9e: 0xc8: 0x74:0xb3: 0x9c
preBootCheck(): adcVal = 708, adcVal/330 = 2
preBootCheck: MiTV43(Napoli M) adcVal = 708, panel_type = 3
Writing to MMC(0)... done
It's the last cmd
AC on
power on is not str resume
MPOOL size : 0x200000
Writing to MMC(0)... done

Changelist:     00112233
============= set bootargs ===============
Unknown command 'if_51OnRam_set' - try 'help'
Hit any key to stop autoboot:  0
fore uup IRKey [0x0]
AC on
Check USB port[2]:
Host type:2
scanning bus for devices...
[USB] interface[0] conf:1 value ff:
1 USB Device(s) found
reset usb host 1: 0 ms
reset usb host 1: 1057 ms
(0) real: vend=0xa5c prod=0xbd1f
table: vend=0xa5c prod=0xbd27
table: vend=0xa5c prod=0xbdc
table: vend=0xa5c prod=0xbd1f
Found device: vend=0xa5c prod=0xbd1f
reset usb host 2: 1075 ms
bulk max packet size: ep 200 ep2 200
mmc change mount : tvinfo
Size of file "rtecdc.bin.trx" from mmc device 0 partition tvinfo: 442368 bytes
Size of file "nvram_bcm43242_btwakeup.txt" from mmc device 0 partition tvinfo: 2193 bytes
Loading file "rtecdc.bin.trx" at offset 0x0 from mmc device 0 partition tvinfo
442368 bytes read
Loading file "nvram_bcm43242_btwakeup.txt" at offset 0x0 from mmc device 0 partition tvinfo
2193 bytes read
File Length: 442819
start
rdl.state 0x0
rdl.state 0x4
Check USB port[2]:
Host type:2
scanning bus for devices...
[USB] interface[0] conf:1 value e0:
1 USB Device(s) found
(0) real: vend=0xa5c prod=0xbdc
table: vend=0xa5c prod=0xbd27
table: vend=0xa5c prod=0xbdc
BT MAC Address is 00:9E:C8:71:97:97
write_command: status:9
mmc change mount : tvinfo
Size of file "wake_on_ble.conf" from mmc device 0 partition tvinfo: -1 bytes
wake_on_ble.conf get size failed
read wake_on_ble.conf failed, load phone wakeup parameters!
write_command: status:39
write_command: status:11
time used1: 1075 ms
time used2: 1220 ms
time used3: 1940 ms
time used4: 3183 ms
mmc change mount : tvconfig
Loading file "/config/PM.bin" at offset 0x0 from mmc device 0 partition tvconfig
24575 bytes read
Wait for PM51 standby...........PM51 run ok...........UART_115200   //此处是上电待机的状况跑的PM51待外部操作.


//按按键后出现下面，又跑一个AC_ON.

AC_ON
BIST0-OK
BIST1-OK
_U
Relocation Offset is: 02300000
[AT][MB][start ub][387]

U-Boot 2011.06-00000-gcb0e25a (Jul 21 2017 - 10:12:54)

[NOS] UtopiaInit
1st UTOPIARegisterToUtopia is done[MBoot] Driver Register to UtopiaNJPEG_EXRegisterToUtopia(): start
NJPEG_EXRegisterToUtopia(): end

[CPU INFO] cpu opencreate instance at 336c7320 with private size 44 bytes at 336c7368
CPUIoctl - MDrv_CMD_CPU_QueryClock
[UTOPIA INFO] close moduleNames[38]: MODULE_CPU

cold boot,boot reason:wake_src is 5,wakeup pin(INT) is high
bt wakeup gpio level is high
msIR_Initialize
uboot held at [335ddf60~35500000]
CPU  : Napoli
Board: BD_MST071D_10AWVS_NAPOLI
get_hardware_version(), hw_ver = 1
HARDWARE ID: 0x1
DRAM:  341 MiB
Now running in RAM - U-Boot at: 34600000

eMMC: HS200 200MHz
eMMC 7.28 GB [E8FFF8h]
In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
Get MAC from eth_macaddr env
MAC:  0x0: 0x9e: 0xc8: 0x74:0xb3: 0x9c
preBootCheck(): adcVal = 708, adcVal/330 = 2
preBootCheck: MiTV43(Napoli M) adcVal = 708, panel_type = 3
Writing to MMC(0)... done
It's the last cmd
DC on !!
DSP1 LoadCode success..DEC System code download finished!()
[Warning!!]No SRS TSXT license!! MusicPath is boot0.mp3
mmc change mount : tvconfig
Size of file "/boot0.mp3" from mmc device 0 partition tvconfig: 50890 bytes
Loading file "/boot0.mp3" at offset 0x0 from mmc device 0 partition tvconfig
50890 bytes read
NAPOLI M
********Amplifier5707_Init
5707write fail = 80
5707write fail = 6
5707write fail = 17
5707write fail = 18
5707write fail = 19
5707write fail = 20
5707write fail = 4
5707write fail = 32
5707write fail = 8
5707write fail = 9
5707write fail = 37
5707write fail = 58
5707write fail = 59
5707write fail = 60
5707write fail = 64
5707write fail = 65
5707write fail = 66
5707write fail = 70
5707write fail = 6
5707write fail = 5
5707write fail = 7
5707write fail = 10
***ERR HW_Mute_5707, L=108******Amplifier_TI5707_SWMute(0)
5707write fail = 7 L=170
********Amplifier_Init 5707 done
1970-01-01   8:00:00 UTC
is deep night
[AutoTest][MBoot][Play Melody]
m_wPanelOnTiming2 is 800
create instance at 336d77a8 with private size 188 bytes at 336d77f0
MDrv_PNL_Init u32PMRiuBaseAddr = 1f000000
[MApi_XC_MLG_GetStatus, 1555]No instance existed, please get an instance by calling MApi_XC_Init() first
Init PWM2[Utopia] T8 is not supportmmc change mount : tvconfig
Loading file "/config/RT_PM_EVT.bin" at offset 0x0 from mmc device 0 partition tvconfig
65536 bytes read
Wait for PM51 standby DRAM   //打印就卡住这里停止不前了，


自始至终板卡没有显示，但是按了按键之后驱屏电压出来了.哪位大神帮我解析下这是什么问题呢？？？

C2211

yang7908 2019-9-29 11:11
问一下楼主这打印接口怎么连接？谢谢

主板背面有TX RX  GND啊，，或者SCL,SDA  GND啊，，焊线啊

wim

Thank you for your post.

wyb6390

你可以看一下爱修网的案例直播中的主板维修板块，里面有罗老师讲的方法与技巧决定维修效率视频作为参考维修

疯小子09

楼主解决了没有，我这有一台同机型一模一样的故障。

C2211

疯小子09 发表于 2018-9-13 14:48
楼主解决了没有，我这有一台同机型一模一样的故障。

早就解决了，但是不记得解决方法了。。抱歉啦

疯小子09

C2211 发表于 2018-9-13 17:24
早就解决了，但是不记得解决方法了。。抱歉啦

楼主真的忘了，如有方法红包送上

sanjaydayal

thanks for post

yang7908

问一下楼主这打印接口怎么连接？谢谢