Functional Test; Adc Calibration; Vga; Cmp - THOMSON 22E92NH22 Service Manual

U201
C817(+)
Download latest release MCU_SW into the Standby CPU(U810) using WT_MCU_ISP SW tool. See
Appendix "How to download MCU SW".
Download latest release SW into the flash using MTK SW tool. See Appendix
FLASH SW". Or download the SW from USB port.

1.2. Functional Test

Once the boards (chassis, FAV, 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
Analog /Digital Tuner
SCART1 (CVBS)
Side av (cvbs)–
SVideo(Y/C)
SCART1 (RGB)
SCART1 (CVBSOut)
HDMI

VGA

Headphone
Loud Speakers
CMP (YPrPb)
Audio tones can be defined by the factory (ie: 1KHz & 3KHz, sweep, ...).
Picture video formats can be changed by the factory according to their own standard.

1.3. ADC Calibration

Two inputs require an ADC calibration for the time being, That are:
VGA
Provide a test signal 1024×768@60Hz with White Black squares.
Select the corresponding "Auto Color" submenu item from "Factory Menu", then press "OK" to
start.
When VGA channel is aligned, SCART-RGB is also aligned, so it is not necessary for RGB to be
separately aligned.

CMP

Provide a test signal 576i@50Hz with 100% 8 steps Color Bar.
Select the corresponding "Auto Color" submenu item from "Factory Menu", then press "OK" to
start.
Test signal (generator)
RF cable
Chroma/Fluke
Chroma/Fluke
Chroma/Fluke
RF cable
DVD with HDMI
compliancy
Chroma/QuantumData
RF cable
RF cable
Chroma/QuantumData
2.6V +/-5%
1.19V +/-5%
Test pattern (format/image)
Full Band (VHF/UHF) + CATV DVB-T
PAL Half Color & Gray bars
PAL Half Color & Gray bars
Half Color & Gray bars
Movie 720p@60Hz
1024x768@60Hz
Half Color & Gray bars
Half Color & Gray bars
"How to download
First channel
First channel
First channel
1080i@60Hz