海信LED46K16P灰屏

北川马记

海信LED46K16P灰屏，有开机音乐，检测是主板坏，12V上屏电压正常，2015-7-15, 11:23:10
COM4, BaudRate:115200 bps, RXD: VGA->11,TXD: VGA-> 4, Printed by RT809F:
UART_115200
BIST0-OK
BIST1-OK
[0123456789A][0123456789]-54
[0123456789][012345678]-44
_nPD

U-Boot 1.1.6 (Aug 27 2010 - 18:22:39)

Board: MSTAR TITANIA (CPU Speed 504 MHz)
DRAM:  134217728
Skipping flash_init
Flash:  0 kB
NAND:  nand_bbt: searching bbt....Bad block table found at page 65472, version 0x01
nand_bbt: searching bbt.....Bad block table found at page 65408, version 0x01
nand_read_bbt: Bad block at 0x02160000
128 MiB
In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
MSVC00B000100100208811DA0000000T 
Set MIU0 group priority:c9.....
Set MIU1 group priority:c9.....
Set MIU0 group priority:c9.....
Set MIU1 group priority:c9.....
Change MIU0 select.....
Group0:d80   Group1:88    Group2:200   Group3:f1   
Change MIU1 select.....
Group0:4200  Group1:e00   Group2:30    Group3:4000  

EEPROM @0x0 read: addr 80200000  off 1ffa  count 1 ... cmd: md.b 0x80200000 0x1
80200000: ff    .
done
80200000: 5a5aa5ff    ..ZZ

data_1[1ffa]--->:ff

check_keypad is[0]--keypad_pressed is [0] ---check_version is[0]
Set MIU0 group priority:c9.....
Set MIU1 group priority:c9.....
Set MIU0 group priority:c9.....
Set MIU1 group priority:c9.....
Change MIU0 select.....
Group0:d80   Group1:88    Group2:200   Group3:f1   
Change MIU1 select.....
Group0:4200  Group1:e00   Group2:30    Group3:4000  
Hit any key to stop autoboot:  0
0x00220000-0x07240000 : "mtd=3"
Volume KL found at volume id 0
read 4194304 bytes from volume 0 to 81000000(buf address)
## Booting image at 81000000 ...
   Image Name:   Linux-2.6.28.10-mstar
   Created:      2010-06-02   4:22:41 UTC
   Image Type:   MIPS Linux Kernel Image (lzo compressed)
   Data Size:    3408227 Bytes =  3.3 MB
   Load Address: 80400000
   Entry Point:  80404150
   Uncompressing Kernel Image ... OK

Starting kernel ...

Linux version 2.6.28.10 (root@localhost.localdomain) (gcc version 4.3.2 (Sourcery G++ Lite 4.3-51) ) #15 PREEMPT Wed Jun 2 12:22:23 CST 2010

LINUX started...
boot_command_line: console=ttyS0,115200 ubi.mtd=3,2048 root=ubi:RFS rootfstype=ubifs rw LX_MEM=0x2800000 EMAC_MEM=0x100000 DRAM_LEN=0x10000000 LX_MEM2=0x46104000,0x1E00000 MS_GOP0_MIU=0 mtdparts=edb64M-nand:128k(NPT),1m(BL0),1m(BL1),114816k(UBI),-(NA)

LX_MEM  = 0x400000, 0x2800000
LX_MEM2 = 0x46104000, 0x1E00000
CPHYSADDR(PFN_ALIGN(&_end))= 0x9AB000
EMAC_LEN= 0x100000
DRAM_LEN= 0x10000000
console [early0] enabled
CPU revision is: 00019554 (MIPS 34Kc)
Begin Titania3_setup
Determined physical RAM map:
memory: 02800000 @ 00400000 (usable)
memory: 01e00000 @ 46104000 (usable)
Wasting 32768 bytes for tracking 1024 unused pages
Initrd not found or empty - disabling initrd
Zone PFN ranges:
  DMA      0x00000400 -> 0x00008000
  Normal   0x00008000 -> 0x00020000
  HighMem  0x00020000 -> 0x00047f04
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
    0: 0x00000400 -> 0x00002c00
    0: 0x00046104 -> 0x00047f04
  Normal zone: 768 pages exceeds realsize 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16393
Kernel command line: console=ttyS0,115200 ubi.mtd=3,2048 root=ubi:RFS rootfstype=ubifs rw LX_MEM=0x2800000 EMAC_MEM=0x100000 DRAM_LEN=0x10000000 LX_MEM2=0x46104000,0x1E00000 MS_GOP0_MIU=0 mtdparts=edb64M-nand:128k(NPT),1m(BL0),1m(BL1),114816k(UBI),-(NA)
alloc ebase: 81207000
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Writing ErrCtl register=0001c7ef
Readback ErrCtl register=0001c7ef
PID hash table entries: 256 (order: 8, 1024 bytes)
CPU freq count = 252000000
CPU frequency 504.00 MHz
console handover: boot [early0] -> real [ttyS0]
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 63708k/40960k available (3902k kernel code, 7952k reserved, 1329k data, 168k init, 30720k highmem)
SLUB: Genslabs=6, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 334.84 BogoMIPS (lpj=167424)
Mount-cache hash table entries: 512
net_namespace: 288 bytes
NET: Registered protocol family 16
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
cfg80211: Using static regulatory domain info
cfg80211: Regulatory domain: US

这是打印信息，大家帮我看看。