Question about SAMTRON 55V 15" CRT Monitor

2 Answers

Monitor fault sir, i got samsung 17' , its not working, i unpluged the vga chord i.e 15pin connector, and connected only the supply chord, the monitor on's and shows the colour, cpu also function, only thing when the vga is connected monitor does not function, let me know what is the possible faults, what is the remedy for this fault

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2 Answers

Crt

Posted on Sep 02, 2008

Vertical controll is damaged

Posted on Sep 02, 2008

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1 Answer

On smaller Proview monitor, model 468, there is not power cord.


On the Proview 468 and possibly the PL-456s and the PZ-456if you look at the end of the VGA chord that you connect to the back of the computer right in between the two screws is a power connector for a 12 volt power supply this is for the 468 I hope this helps with your dilemma on how it gets power. tjbraya@yahoo.com

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How to check Samsung 732N 17 inch Monitor Power supply module


Open the case, open the main power supply board out and check the dc volts on the pins of the connector to the VGA board the volts are written in the board

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My smasung monitor sync master 753 vga connector broken, what is color scheme for new connector


Hi,

Colour scheme to re wire is as follows...

db15-vga-connector-schematic-thumb.png
Pin Name Function 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
RED
GREEN
BLUE
n/c
GND
RED_RTN
GREEN_RTN
BLUE_RTN
VDC
GND
n/c
SDA
HSYNC
VSYNC
SLC
Red Video
Green Video
Blue Video
not connected
Signal Ground
Red Ground
Green Ground
Blue Ground
5 VDC supply (fused)
Signal Ground
not connected
DDC/I2C data
Horizontal Sycn
Vertical Sycn
DDC/I2C Clock


Hope this helps!!

Jul 19, 2011 | Samsung SyncMaster 753S 17" CRT Monitor

2 Answers

How to repair HP 1702 lcd monitor with broken VGA cable


u can cut 15pin vga socket and u can replace with new

Jan 22, 2011 | HP L1702 17" LCD Monitor

1 Answer

My SyncMaster 740n is stuck in power save mode. I have rebooted, unplugged power and vga chord...the thing was on and all of a sudden POOF it was black. The power light blinks every second or two.


zolio, Monitor most likely has "switch-mode-power-supply" problem!! click on blue highlighted "SyncMaster 740N" and read about similar BLACK SCREEN of DEATH failures and how to fix them!! Your monitor I suspect is no different than any other LCD with "cold-cathode-fluorescent-lamps" for backilghting that fail to light-up. You can even visit YOUTUBE for videos on fixing BSOD problems!! Also a ton of stuff here on FIXYA!!! Just read and follow some of the links!! you WILL find out about everything you DIDN'T know of HOW and WHY lcd monitors fail. And better still, LEARN how to do the repair work or contract out the work to a Technician or other monitor REFURBISHMENT depot. Have you tried SAMSUNG to do warranty work? If this response was of some help please rate on FIXYA . 12fixlouie

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1 Answer

Samsung 710V - controller box


your monitor's video section is fault change video amp. ic or check cpu cable(vga cable).

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2 Answers

Samsung 173S LCD monitor is dark


I had the same problem.
I opened the unit and checked all the caps- None were bloated or obviously in trouble. I checked the voltages on the two regulators on the green vga proccessor board. They should be 2.5 v out on the left on and 3.3 volts out on the right one and the input to the board is 5.1v from the main powersupply. The Power supply also supplies 12.4 v to the inverter for the backlight power.
These were all good.
I checked all these for reference for benifit of others. I expected the problem to be the video input/connector/opens related because without the cable connected the monitor functions thus the voltages should be good and the cpu/brains should also be OK.
Either the unit didn't detect the vga signal or was being forced into standby by some means.

After dissaembling the unit the monitor begain to function again, and then wouldn't after I reinstalled into the case agian.
I then found that the VGA board would work/not work with a slight flexing/warping of the board. The mounting screws and two clips bend the board when it is normally in place. I was able to listen closely to the vga proccessor board as I flexed it an could hear the pins on the Main Chip crackle. I looked very closely with a magnifing glass and could see that the pins on the side toward the VGA connector were loose- probably this batch of boards had a poor solder proccess and the connections were faulty.

I reflowed the solder on the main chip on the side toward the vga connector. Be VERY VERY careful these a extremely small pins. Have "good" solder wick available for the removal of blobs.

The Monitor now is again working and flexing the vga board no longer affects the operation of the unit

Good Luck.

Jul 08, 2007 | Samsung SyncMaster 173S (Black) 17 in....

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