海信LED42K16X3D（BOM2）开机打印信息解读

华英家电

      这台机子故障是红灯亮，面板和遥控都无法二次开机，但主板的芯片和几个DC_DC变换模块有53℃的温升，背光也不亮。说明并未开机进入工作状态，但主板上的原件发热却是为何？能读出数据和打印信息。从打印信息上看，DDR2检测失败，通讯检测DDR1输出不对，DDR2没有收到主芯片发出的信息自然没有输出。故障应该就在DDR2上面。按道理已经检测出有故障机子应该处于待机状态才对，但整个主板却发着高烧“死不瞑目”，请老师们帮忙看看这个主板还有其他区毛病不。
      打印信息很长，有五页。这里是第一页。

UART_1152 00

BIST0-OK

BIST1-FAIL

[12345678][1234567]-44

[][]-33

_nPD

U-Boot 1.1.6 (Mar 26 2011 - 12:29:56)

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, version0x01

nand_bbt: searching bbt.....Bad block tablefound at page 65408, version 0x01

nand_read_bbt: Bad block at 0x00300000

nand_read_bbt: Bad block at 0x03640000

nand_read_bbt: Bad block at 0x05c40000

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

华英家电

第二页

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
0x00020000-0x07440000 : "mtd=1"
Volume KL found at volume id 1
read 4194304 bytes from volume 1 to 81000000(buf address)
## Booting image at 81000000 ...
   Image Name:   Linux-2.6.28.10-mstar
   Created:      2010-11-15   9:43:23 UTC
   Image Type:   MIPS Linux Kernel Image (lzo compressed)
   Data Size:    3334400 Bytes =  3.2 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) ) #14 PREEMPT Mon Nov 15 04:42:49 EST 2010

LINUX started...
boot_command_line: console=ttyS0,115200 ubi.mtd=1,2048 root=ubi:RFS rootfstype=ubifs rw LX_MEM=0x2800000 EMAC_MEM=0x100000 DRAM_LEN=0x10000000 LX_MEM2=0x45D64000,0x2200000 MS_GOP0_MIU=0 mtdparts=edb64M-nand:128k(NPT),118912k(UBI),-(NA)

LX_MEM  = 0x400000, 0x2800000
LX_MEM2 = 0x45D64000, 0x2200000
CPHYSADDR(PFN_ALIGN(&_end))= 0x991000
EMAC_LEN= 0x100000
DRAM_LEN= 0x10000000
console [early0] enabled

华英家电

第三页

CPU revision is: 00019554 (MIPS 34Kc)
Begin Titania3_setup
Determined physical RAM map:
memory: 02800000 @ 00400000 (usable)
memory: 02200000 @ 45d64000 (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 -> 0x00047f64
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
    0: 0x00000400 -> 0x00002c00
    0: 0x00045d64 -> 0x00047f64
  Normal zone: 768 pages exceeds realsize 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 17417
Kernel command line: console=ttyS0,115200 ubi.mtd=1,2048 root=ubi:RFS rootfstype=ubifs rw LX_MEM=0x2800000 EMAC_MEM=0x100000 DRAM_LEN=0x10000000 LX_MEM2=0x45D64000,0x2200000 MS_GOP0_MIU=0 mtdparts=edb64M-nand:128k(NPT),118912k(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=0004f40a
Readback ErrCtl register=0004f40a
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: 67908k/40960k available (3792k kernel code, 7848k reserved, 1335k data, 168k init, 34816k 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

华英家电

第四页

  cfg80211: Regulatory domain: US
        (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
        (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm)
        (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
        (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
        (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
        (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
        (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm)
cfg80211: Calling CRDA for country: US
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
highmem bounce pool size: 64 pages
NTFS driver 2.1.29 [Flags: R/O].
JFFS2 version 2.2. (NAND)2001-2006 Red Hat, Inc.
fuse init (API version 7.10)
msgmni has been set to 64
CPU 0 Unable to handle kernel paging request at virtual address 200700ba, epc == 8060884c, ra == 8060882c
Oops[#1]:
Cpu 0
$ 0   : 00000000 0000002d fffffffe 00000000
$ 4   : 200700ba e0054a74 00000046 82943cc4
$ 8   : 00000000 80403ff0 81053a00 00000000
$12   : e0054000 00000004 00000001 80960000
$16   : 00000001 e0054000 8290f900 808ebe14
$20   : 00000046 82943cc4 82943cc0 00000002
$24   : 8290f980 805e4d74                  
$28   : 82942000 82943c50 00000002 8060882c
Hi    : 0000000b
Lo    : 5555555b
epc   : 8060884c zlib_deflateReset+0x9c/0x140
    Not tainted
ra    : 8060882c zlib_deflateReset+0x7c/0x140
Status: 11008c03    KERNEL EXL IE
Cause : 0080000c
BadVA : 200700ba
PrId  : 00019554 (MIPS 34Kc)
Modules linked in:
Process cryptomgr_test (pid: 173, threadinfo=82942000, task=828551e0, tls=00000000)

华英家电

第五页

  Stack : 5a5aa5a5 5a5aa5a5 5a5aa5a5 5a5aa5a5 80930000 808ebe0c 8290f980 805e4db0
        00000007 80421268 5a5aa5a5 000001f6 80950000 808ebe0c 808316a0 00000000
        82943cc4 8290f900 00000200 805df130 00000000 80434d1c 82943cf8 00000000
        82943cc0 8092d070 c4653600 804464f8 00000200 00000000 00000000 00000000
        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        ...
Call Trace:
[<8060884c>] zlib_deflateReset+0x9c/0x140
[<805e4db0>] deflate_compress+0x3c/0xac
[<805df130>] test_comp+0x90/0x300
[<805df3fc>] alg_test_comp+0x5c/0xa4
[<805df7e8>] alg_test+0x178/0x364
[<805df014>] cryptomgr_test+0x3c/0x5c
[<80441848>] kthread+0x58/0xa4
[<8040a96c>] kernel_thread_helper+0x10/0x18


Code: 00822021  00031840  ae230034 <a4800000> 8e260044  3c027fff  8e24003c  3442ffff  00c23021

李小雄

测排阻对比

华英家电

李小雄 发表于 2018-6-17 21:12
测排阻对比

排阻测过了都好的，现在只要插上电打开开关主板上的两个大芯片和DDR、DC_DC转换电路的原件就很快发热，最高的有55度，就像正常开机工作一样。按说自检有问题后应该恢复到待机静默状态，主板不会发热才对，可这个机子怪就怪在这，老师能帮忙分析下不？

山间小溪

我觉得还是要检测一下各路供电是否有问题或是有漏电的地方没有，既然打印显示DDR2有问题，先检查供电及通讯，若没有问题代换一下试试。

lucky_xiaoxin

DDR2 短路，拆下来再看看打印信息

华英家电

山间小溪 发表于 2018-6-17 22:56
我觉得还是要检测一下各路供电是否有问题或是有漏电的地方没有，既然打印显示DDR2有问题，先检查供电及通讯 ...

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