Wednesday, October 05, 2016

LG Flatron W1943SB 19 inch wide LCD monitor – SMPS circuit diagram – Service mode adjustments

SERVICE MODE
* Turn off the power switch at the front side of the display.
* Wait for about 5 seconds and press MENU, POWER switch within 1 second interval.
* The SVC OSD menu contains additional menus that the User OSD menu as described below.
CLEAA ETI: To initialize used time.
Auto color: W/B balance and automatically sets the gain and offset value.
Aging: Select aging mode [on/off]
Panel: used panel type.
NVRAM INIT: No.
R/G/B-9300K: allows setting the R/G/B 9300K value manually.
R/G/B 6500K: allows setting the R/G/B 6500K value manually
R/G/B Offset: allows setting the R/G/B offset value manually [analog only]
R/G/B gain:  allows setting the R/G/B gain value manually [analog only]
Windows EDID V1.0 User Manual
Operating System: DOS, windows98, 2000, XP
1. Parallel port setting.
Enter your bios, and do as followings.
a) Integrated peripheral
b) Super IO Device
c) Parallel port mode
You should set the parallel port mode to SPP for using the DOS EDID tool.
2. EDID Write
1 Connect the signal line of monitor with DDC recorder.
2 Choose the DDC RECORD program, and it shows on the screen, choose the correct source base on the monitor.
3 Click “LoadFile” ,then key in the manufacturer name、 model name、 product code, then choose the correct model name base on the monitor.
4 Scan serial No. to DDC recorder by Bar Reader, then read again in the Verify SN.
5 According to the message of DDC program, when the picture as fig.1 appears, it shows DDC record has finished.
check Manufacturer Name、Vendor Assigned Code、 Monitor Name、 Serial Number: *****[???????? ******] (it must be the same as Bar Code)、 Week of Manufacture: ** Year of Manufacture: **** Checksum: ** (It must be the same as the last byte of data table, as follows picture shows). Above of all must be right, then if it shows the green “PASS”, it means record succeeds ,the red “Fail” means record fails; then check the power supply and signal line, and ensure they are connected well ,then do DDC record
again from the third step.
SMPS and Back-light inverter circuit diagram
Click on circuit diagrams to magnify