Re: Dead, Daewoo 17" TFT-LCD Model HL710S
meter set to 200 ohms on pin 6 to pin 7 their shows no or 0 resistance
Ron K
Member
Last Activity: 04-23-2012, 07:36 PM
Joined: 09-10-2010
Location:
-
Re: Dead, Daewoo 17" TFT-LCD Model HL710S
With no power conected, big cap grained to 0 volts, on ICE2AS01 pin 7 grd to pin 6 vcc 0 volts. But with power conneced I get at the big cap I get 166 volts dc, ICE2AS01 pin 7 grd to Pin 6 vcc 7.4 volts dc, secondary sibe both diods I get 59 volts dc.Leave a comment:
-
Re: Dead, Daewoo 17" TFT-LCD Model HL710S
The ICE part number is 2AS01, and another number is (a symbol then 0403LP).
ThanksLeave a comment:
-
Re: Dead, Daewoo 17" TFT-LCD Model HL710S
Dear Help
Here are a new set of pictures with a better camera I hope they are clearer for you. Yes I tested the voltage with the the power supply and the main board connected, I also checked for a fuse but couldn't seem to find one. My Country is Canada and I am located in Manitoba.
Thanks for your time
IMG_3974.jpg (423.7 KB)
IMG_3978.jpg (432.0 KB)
IMG_3979.jpg (375.5 KB)
IMG_3980.jpg (459.4 KB)
IMG_3983.jpg (488.0 KB)Leave a comment:
-
Re: Dead, Daewoo 17" TFT-LCD Model HL710S
Dear Help
I have a Daewoo 17" TFT-LCD Model HL710S monitor that is dead I cheacked all the Caps with an ESR tester and they all tested OK. At the big cap I get 166 volts dc, IC chip grd to vcc 7.4 volts dc, secondary both diods I get 59 volts dc.
But their is no voltage at the 5 and 12 volt output pins. What component could be the problem
Thanks
Ron
IMG_8472.jpg (151.8 KB)
IMG_8473.jpg (154.6 KB)
IMG_8477.jpg (195.3 KB)
IMG_8478.jpg (188.9 KB)...Leave a comment:
-
Re: Dead, Daewoo 17" TFT-LCD Model HL710S
Dear help
At the big cap I get 166 volts dc, IC chip grd to vcc 7.4 volts dc, secondary both diods I get 59 volts dc.
Thanks
Ron
[ATTACH]38303[/ATTACH]
[ATTACH]38304[/ATTACH]
[ATTACH]38305[/ATTACH]
[ATTACH]38306[/ATTACH]Re: Dead, Daewoo 17" TFT-LCD Model HL710S
Dear help
At the big cap I get 166 volts dc, IC chip grd to vcc 7.4 volts dc, secondary both diods I get 59 volts dc.
Thanks
Ron
[ATTACH]38303[/ATTACH]...Leave a comment:
-
Re: Dead, Daewoo 17" TFT-LCD Model HL710S
I have the pictures put how do I attach them to this post? Where is your manage attachments button to attach the pictures? I tried (Go Advanced tab) then attach from there, but it doen't seem to work.
Thanks
RonLeave a comment:
-
Dead, Daewoo 17" TFT-LCD Model HL710S
Dear Help
I have a Daewoo 17" TFT-LCD Model HL710S monitor that is dead I cheacked all the Caps with an ESR tester and they all tested OK. When I put the neg to the big cap I get voltage ot both diods on the secondary section and also on I get voltage on the secondary caps. But their is no voltage at the 5 and 12 volt output pins. What component could be the problem
Thanks, Ron -
Re: Ring Tester Question
Dear help,
I just got a new assembled blue ring tester and would like to change the clips to probes, but I would like to shorten the wires, would that affect the test results?
thanks
ronLeave a comment:
-
Re: HP 1955 Monitor Repair Guide
Dear Helper
Yes it is a different Monitor and a different board then the Post #1
Is this usually the case with the second set of numbers and sometimes even a third
set.
Thanks for the help greatly apprecaited.
RonLeave a comment:
-
Re: HP 1955 Monitor Repair Guide
Dear Help
I have a burnt 40T03GP Power Fet and I found some but the second number is Different the ones that blew are 40T03GP and right under that number is 701085. But the ones I can get heve the numbers 40T03GP but the number under that one is 602425 are those fets ok to use. is the socond number of any value I googled the socond number and it never came up.
Thank for your time
RonLeave a comment:
-
Re: HP 1955 / BENQ 48.L1A02.A00 repair
My name is Ron, is it possible to purchase a new new Benq 48.L1A02.A00 invertert or power board for a HP 1955 monitor, and if its possible where can I purchase some?
Thanks. Ron.Leave a comment:
-
Re: HP 1955 Monitor Repair Guide
Thanks for your help! I have another question, The HP L1955 models has an upgrade inverter board from the HP 1955 models, it looks a lot easyer to fix and work with it does't seem to have the 4431 fets and other components. I'm wondering if I could use the new upgradeed inverter L1955 models and put it into the 1955 model? Would you also know where I could purchase those new model inverter boards? I phoned HP and all I get is transferd from one department to the next with no results.
ThanksLeave a comment:
-
Re: HP 1955 Monitor Repair Guide
If one of my 4431 Fet is burnt, Do the 2 signaling transistors usually go with 4431 fet?Leave a comment:
-
Re: HP 1955 Monitor Repair Guide
It is set on diode.
ThanksLeave a comment:
-
Re: HP 1955 Monitor Repair Guide
Hello
they don't seem to be shorted, signaling on transistors I get 6.5 to 7, on the backlight ON/OFF 4431 Fets I get full 7. ThanksLeave a comment:
-
Re: HP 1955 Monitor Repair Guide
First time user, Very interesting sight! I also have an HP 1955 monitor and have the same problem, switches on for a second then blank. I read all of Krankshaft advice and found it very helpfull. But is there a good and accrate way to cheack the signaling transistors plus the backlight ON/OFF 4431 Fets on board with a good volt meter. Or do I have to remove them to do a proper test? bacause I get the same reading on all four on board.
Ron KLeave a comment:
No activity results to display
Leave a comment: