TCL L55E5800UDS, Service Manual

Page: 14 / 43

R&D
SHENZHEN
Date 2013/12/2
Page
12
- 5 -
- 5 -
Index
Draft
of 12 Pages Name
Channel band VHF-L VHF-H UHF
2.4.3 CVBS
2.5.5.1 CVBS input
Connect AV cable with CVBS and audio L, R signal to P901 .
Change the display source to CVBS
Test Pattern SMPTE RP-133 32-step greyscale
Format
NTSC M
(Generated by Chroma2327)
NTSC M
(Generated by Chroma2327)
3 Video Alignment
On MS69KE-LA platform, Alignment items could be achieved by using serial port with
UART protocol, P1002 USB port could be used for UART purpose, pin definition is as
follows:
Pin 9---RXD;
Pin 8---TXD;
Before carry out the alignment, it is very important to make sure the Project ID is correct.
Alignment Conditions
In order to have defined conditions for the alignment procedure, the TV set should be
warmed up for 10 minutes.
3.1 ADC Calibration
MS1368K-LA
is no need to do the ADC calibration..
3.2 White balance
Only the Normal Color Temperature must to be adjusted, the Warm & Cool data will be
changed according to the default offset, but these offset also should been changed according
to the manufacture condition. For more information about Color Temperature, please refer to
the Appendix 2,
The standard data will be confirmed by our PQ engineers, Now these data only is reference.
3.2.1 CUT-OFF ALIGNMENT
Cut-off alignment is used to define the color co-ordinates for low luminance level. This
alignment has to be done for the following standards: