most of the the time the reason for this is red output transistor is shorted
I like to share some ideas with u.
out of three RGB any one transistor is shorted means the screen will turn to the colour of for which it is used.for example red transistor is shorted means the screen will be red with retrace lines.if green is shorted screen will be plain green screen with rtrace lines.in case of humpy it wae blue that was shorted. so blue with retrace lines with blue plain screen.this is for shorted transistors.
if it is open transistor.
if a green output transistor is opened or the problem with green output or driver section.only green part will be missing.remaining picture will be madeup of red and blue.to come to know if it is prblem with out put transistor used in neck PCB just exchange the transistor with each other. ie green with red. so now if green transistor was in problem now it makes red disappear as it goes to red place.
some time by checking with multimeter it will not show error, but in working it will not work this is called as run time error.
out of three RGB any one transistor is shorted means the screen will turn to the colour of for which it is used.for example red transistor is shorted means the screen will be red with retrace lines.if green is shorted screen will be plain green screen with rtrace lines.in case of humpy it wae blue that was shorted. so blue with retrace lines with blue plain screen.this is for shorted transistors.
if it is open transistor.
if a green output transistor is opened or the problem with green output or driver section.only green part will be missing.remaining picture will be madeup of red and blue.to come to know if it is prblem with out put transistor used in neck PCB just exchange the transistor with each other. ie green with red. so now if green transistor was in problem now it makes red disappear as it goes to red place.
some time by checking with multimeter it will not show error, but in working it will not work this is called as run time error.
Hi,
ReplyDeletei am from pakistan and shop in UAE for laptop repair.read your blog and you r doing very good job to spread your knowledge.you are particularly doing repair for TV's.have you any information about any Laptop repairng blog just like your's because i am searching continusly and did not find any one.
thanks
Hi Brother,
ReplyDeleteRight now I have no such information. Surely I will also search for the information and send you the details. Thanks from approaching from India's sister country Pakistan.