SOURCE: Samsung SyncMaster 793MB 17 in.CRT Troubleshooting
remove EHT wire and clean that area with spirit or isopropal alchohal. dry it . if neccessary replace the EHT cap. apply JELLY (like vasiline)at EHT cap and at CRT where EHT placed. if possible spray the ecrilic.dry it and it will never gives trouble like this.
SOURCE: 2SC5589 in LG 17" CRT Monitor
This transistor is manufactured by Toshiba and is only available through Gateway.
Dan
SOURCE: what component failed in my 17"CRT 753s model samsung moniter?
Hello,
Your vertical deflector circuit is going out. This is really not economical to repair, the chip alone is $12-15 plus if you have any other parts in the circuit going out plus labor. You can pickup 17" CRT monitors for less than $15 from goodwill or craigslist.
Sorry to say but I think its time to retire your 753s
Buddy
Corporate Computer
SOURCE: 700e Lg crt monitor problam power on eht on but not display
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
SOURCE: LG Studiowork, CRT Moniter, picture not display on screen
http://www.eserviceinfo.com/index.php?what=search2&searchstring=studioworks+700s+(cb777f)
Service and repair manual above.
first thing it is not necessary to replace eht when there is no raster.
111 views
Usually answered in minutes!
×