Re: view sonic vx2035wm flashing blue power lite dark svreen
Let me think about it but I may just give up on for now. You were very helpfull and I wouldn't have goten this far without your help.
One other thing I noticed that even with the voltages stable I was never able to bring up the menu and when I turn on the monitor without the analog cable connected I get a message on the screen that states no signal analoge cable disconnected then it goes away.
Jwh8000
Member
Last Activity: 06-19-2012, 03:43 PM
Joined: 02-05-2012
Location:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I got a better pic for you...Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
is the main board the power board the one we have been working on?Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
16.4 volts across c809
16.4 volts on I801 pin 4 and 6Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
same symtomsLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
analog computer cableLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
You were corect I did have P801 connecters reversedLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I wasn't able to get the voltage reading since I have to get them off the bottom of the card and I cann;t get to the test points with the cables connected.
the readings for I801 g to pin 6 is .417m
D810
.214
.909
.214
.909
D812
.220
lnf
.219
inf
I'm not an electronics expert but I would expect to see the same readings on both. I would expect to see inf on the reverse readings so maybe D810 has a problem....Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
thanks, I'll work on tomorrow and report backLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I replaced the two caps and fixed the loose connection on c825 and I still have the same problem. Any ideasLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I circiled c825 P801 and l808on the attachmmentLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I found a bad conection at the soder joint of c825 + side and the soder trace to L808. The circuit board trace came loose on the positive side. By moving the cap and using an ohm meter I can make the connection come and go. That positave lead connects to pins 4,5, and 6 of P801. I'm thinking this is my source of fluxuating voltage. Cap 825 is one I replaced and I either messed up the connection on taking the old cap out or installing a new one. I'll repair the trace and I may as well replace the two caps you wanted me...Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I did recieve those two caps but I didn't repace them since they looked ok. I did all the rest of them. I'll replace them and give it another try.
While I was getting the votage readings the votages stablized and I noticed the monitor was working. I pulled the video cable and replaced it and the problem came back. Kind of tells me there is another bad cap.
You have been real helpfull I think we will get this problem fixed, thank you. I'll continue tomorow because I need to pick up a new sodering...Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
P101
pin1 0v
pin2 2v-5v
pin3 0v
pin4 0v
pin5 2v-4.95v
pin6 2v-4.95v
pin7 .8v-1.6v
pin8 1.5v-275v
pin9 15.5v
I101 ACT1084 I102 AP117vc
pin1 0v pin 1 1.5v-3.29v
pin2 1.5v-2.29v pin2 .9v-3.29v
pin3 2.9v-4.94v pin3 0v
all readings taken with Fluke digital mutimeter model 77Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
thanks, it will be a while before I get the readings, have to fix dinner for the wifeLeave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I assume on the voltage regulators the pins go left to right for pin 1 to 3Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I got a little better pic ov the video card...Leave a comment:
-
Re: view sonic vx2035wm flashing blue power lite dark svreen
I used the caps suplied by LCDalternatives web site for the replacements....Leave a comment:
-
view sonic vx2035wm flashing blue power lite dark svreen
The capacitors I removed I could see that there were five that were bad.
However the repair did not fix my problem, before I repaired the monitor it had a dark screen and the blue lite on the front of the monitor would flash. After the repair I got the message on the screen that the analog signal was missing and the blue lite stayed lit. When I installed the monitor cable the same problem with dark screen and flashing blue lite. I am unable to bring up the menu options also. The capacitors did correct some problems because I never got the no signal message before. There is still a problem... -
Re: New Members - please post your introductions here
Helo from Florida,
My name is Jim and am a retired network tech. I worked for a large drug co with a workdwide Cisco network.Leave a comment:
No activity results to display
Leave a comment: