REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday, 4 February 2019

LG FLATRON W1943SB 19 INCH WIDE LCD MONITOR – SMPS CIRCUIT DIAGRAM – SERVICE MODE ADJUSTMENTS

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. LG FLATRON W1943SB 19 INCH WIDE LCD MONITOR – SMPS CIRCUIT DIAGRAM – SERVICE MODE ADJUSTMENTS
SMPS and Back-light inverter circuit diagram
Click on circuit diagrams to magnify