奇
菱
光電股份有限公司
Chi Lin Optronics Corp.
Doc. No
CS-72601
Version A3
Title
CHT-726 Level 1 Service Manual
Page
71 / 75
8.7
Procedures for the video module adjustment
Before replacing and testing the video module, you need to have the following equipments and
software.
Needed Equipment or Software Program:
1. ASTRO VG828D, SIMIILIAR VIDEO
PATTERN GENERATOR, OR VIDEO
ESSENTIAL
2. COMPUTER
3. FIRMWARE FOR THE VIDEO MODULE
Step 1: Enter service mode by pressing
and “MENU”, and check the CW
index no.
Step 2: Refer to Chapter 8.6 replacing the video module.
Step 3: Refer to Chapter 7 for loading firmware to the video module.
Step 4: Enter service mode, and restore the CW index no. which you read on Step 1.
Step 5:
Connecting Projector and Testing Equipment.
Connecting Component and VGA cable.
Connecting Projector Power Cord
Turn on all power switches:
Pressing “Power” button to start projector.
Switch on Video Pattern Generator
Step 6: Ready to go for adjustment.
1. Feeding a black pattern from PC (VGA) port.