Factory Alignment Specification of normal SIACP
Page 4 of 19
INFO:
ª
All tests and measurements mentioned hereafter have to be carried out at a normal mains voltage
(
220 ~ 240 VAC
)
ª
All voltages have to be measured with respect to ground, unless otherwise stated
ª
All final tests have to be done on a complete set including LCD panel in a room with temperature of
25+/-7°C
ª
The White Balance (color temperature) has to be performed into subdued lighted room after at
least
1 hour
of warm-up/burn-in. This is applicable for both Alignment and Picture Performance
evaluation at OQA in order to be set free of any temperature drift ( colorimetry vs time)
1. Electrical Assembly Alignment
1.1.
Preconditions – 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 error should destroy the board. For example,the output
of DC/DC and LDO should not shorted to ground.
Supply a suited voltage and power on , then check the voltage according to the relevant
block diagram , circuit diagram and voltage spec . the error should less than 5% .For example,
the voltage for main chip(DV33, AV33,DV18,DV11,etc.), the voltage for DDR (DDRV) , the
voltage for amplifier(AUDIO_PWR),etc. Only the standby voltage is necessary if there is no
software in the flash .
1.2.
SW download
Download the latest release MT62_SW into the flash using MTK SW tool. See Appendix
o
“
How to download FLASH SW
”. Or upgrade the SW from USB port if there is a initial SW in the
falsh and the set can work normally See Appendix
p
” How to upgrade FLASH SW from USB”
.
Download the latest release MEMC_SW (skip this step if no MEMC module on the chassis).
See Appendix
s
“
How to download FLASH SW for MEMC module
”.
1.3. Panel ID check and modify
There is different ID stored in the NVM depended on different Panels. Modify it with Hyper
terminal if the initial ID or a wrong ID make the set can not display clearly. See Appendix
r
. It can
be checked and modified in
Factory menu
->
Feature
->
Panel ID
if the set can display clearly .
The set should be restart if the panel ID is changed .
1.4. Functional Test
Once the boards (chassis, KB, IR, PSU…) and the panel are well interconnected, connect all
external generator devices to relevant inputs/outputs below according to their respective test
patterns format and check picture content and sound quality accordingly
:
Source Test
signal
(generator)
Test pattern
(format/image)
Analog /Digital Tuner
RF cable
Full Band (VHF/UHF) + CATV
DVB-T
Composite(CVBS) Chroma/Fluke PAL Half Color & Gray bars
SCART1 (CVBS)
SCART1 (RGB)
Chroma/Fluke
PAL Half Color & Gray bars
Half Color & Gray bars
SCART2 (CVBS)
SCART2 (Y/C)
Chroma/Fluke
PAL Half Color & Gray bars
VGA Chroma/QuantumData
1024x768@60Hz
