Monitor looks as if there is no CPU

if you do repairs then disassemle the monitor.where the power cord is thats the power supply resolder the main components in the power supply. cause some of the them are not making good contact on the circuit due to the age of the monitor and constant heat over the years.

Please explain better.

problem with the monitor Display cable. it is damaged.

Normally monitor will receive 3 colors red, green, Blue signals from CPU. If one cable i.e Red wire connection is missing in display cable which is connected to monitor, Red color image on monitor wil be replaced with other fade color.
So, need the replace the display cable or display connector!

check the connection to the cpu.fix the VGA cable connector.

The normal crt monitor have a demo display when you unplug the vga cable to PC like this image below..
Note:
If the crt monitor green LED light steady and heater beam have light, the horinzontal and High Voltage supplied to tube is completely good. If you encountered this problem just focus on video section of crt monitor. But before you start... find the flyback transformer behind this they have two controls screen & focus. After you found it plugin the monitor use plastic precision or small screw philip driver for safety to high voltage at horizontal area choose screen control rotate it to clockwise direction follow this....
If the display responses or from dim to lighter 100% you have a problem to ABL find this at the bottom of horinzontal section near at flyback transformer pins trace the line of ABL for dried solder, open resistor if nothing happen find the Video IC at chroma section and replace it. follow this...
For LG & Redfox you found LM1269NA Visit this site for seaching semiconductor matches www.alldatasheet.com Good luck.

Check this site for searching semiconductor
www.alldatasheet.com

I think that two capacitors in the powers supply circuitry(incise the monitor) has gone bad. Just open and you'll see them.
This should solve your problem.Best of Luck.Please rank me appropriately. If you want any clarification, Please get back to me

Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of he monitor. When the capacitors blow out they also damage the driver MOSFETs. If you aregood at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts, replace any that look like the pictures and your monitor should work fine. The capacitors do need to beinstalled with the correct + and - connections, note the stripe on theold one and insert the new one the same way. If you don't want to trythe repair yourself we offer a repair servicefor $35 plus shipping.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

LG 700E monitor's power LED blinking continueously and there is no display solutin ........

LG 700E monitor's power LED blinking continueously, no displaySolution.............

check dry points in power supply & Horizontal, video section(CRT Neck board)
check output voltages from SMPS
check 5V from SMPS to MICOM IC