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Page 6 of 27
The Picture Performance assessment such as White Balance (luminance and color temperature) has to be
performed into subdued lighted room after at least
45min
of warm-up in order to avoid any temperature drift
influence (colorimetry vs time)
1. PCB/SKD Assembly: Test & Alignment
1.1.
Pre-Conditions and DC/DC Check
Before power on, please check the board according to the relevant block diagram and circuit diagram, and
make sure that no serious issue or mistake can destroy the board. For example, the output of DC/DC and
LDO should not be shorted to ground.
Supply a suited voltage and power-on, then check the voltage according to the relevant block diagram,
circuit diagram and voltage specification within 5% margin.
For example, check SoC voltage (AV3V3, VCCK-1V2, etc.), DDR voltage (DDRV) , amplifier voltage
(Main_Power
), etc… Only the standby voltage is necessary if there is no software in the flash.
1.2.
SW Image download
Download the latest release SW from below FTP server:
- Username:
MT31_Factory
- Password:
N5246V
- Folder:
…/MT31-B-L-D
(includes both TCL & THOMSON brand firmware branching subfolders)
- Folder:
…/MT31-T2
(includes both TCL & THOMSON brand firmware branching subfolders)
- Folder:
…/MT31-S2
(includes both TCL & THOMSON brand firmware branching subfolders)
See Appendix
⑴
“
How to upgrade FLASH SW using MTK tool
”
See Appendix
⑵
“How to upgrade FLASH SW using USB”
OAD Transport Stream Image
To manage quicker mass reflashing, a predefined OAD DVB-T channel (freq:850MHz / bandwidth:8MHz) is
embedded to SW core and only available into Factory mode. Some licensed IBL tools ('xxx2lli.exe', 'lli2dsm.exe',
dsmmerge.exe, …) from Intellbyte Inc. (
) might be necessary to create appropriate DVB
SSU TS. Over some predefine settings such as repeated datablock insertion, null packets size, … (controllable in
configuration file), here below are mandatory OUI entries structure to prepare DSM-CC carousel image format:
OUI Entry
MT31L
MT31B
CUST_OAD_OUI
408BF6
408BF6
CUST_OAD_HW_MODEL
0x5881
0x5881
CUST_OAD_HW_VERSION
0x0001
0x0001
