Question about SAMTRON 55V 15" CRT Monitor

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Intermittent Display Samtron 45Bn 15 in CRT. Display is intermittent. Steadies up when the 3-pin plug on the backside is manipulated or its underside gently tapped. I want to know how to open it and what to look out for/what repair is possible.

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If you have the skill for take off the cover,take off the metal shield and cables until you reach the board,have a 100watt light on,a solder hot iron in one hand and a few rings of tin in the other, obviously take off the plug and left it over a few meters,and waited a few minutes to give some capacitors discharge time,.............it's easy !!! resolder the joints that like dark,mainly see the big transistors,(or IC)that have like rings on it's pins, and thats all. I tell you its easy okay then you have to "rebuild" your monitor back.don't make shorts pleeease.

Posted on Jul 10, 2007

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Posted on Jan 02, 2017

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The DB15 VGA (Video Graphics Array) connector contains however 15 pins in three rows of 5 pins each. These five pins carry the color and synchronisation signals, also a digital I2C interface for two-way communication between the video controller and monitor. The common 15-pin VGA connector found on most video cards, computer monitors, high definition televisions which support VGA connections. The following schematic diagram and table shows respectively connector and pin assignment of DB15 VGA.

Pin
Name
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

RED
GREEN
BLUE
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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


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