Re: Vizio LP2626/VMM26-F20I
Well i decided to pull the power supply out of my working LP2626 monitor and i really like the way they stamped the resistor 508 and 525 it is a 1.5M resistor....
sportsman99
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Last Activity: 10-31-2014, 02:14 PM
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Re: Vizio LP2626/VMM26-F20I
yes i did read them out of the board and it did read the same as 508. they looked somewhat dark in color but that could have been manufacturing. i read them with a analog meter and a digital meter (same results per say). with pg clips so as not to induce resistance from me. i have been able to keep this monitor up, but after a power cycle it is pot luck weather it comes up or not.. IF anyone has the 3pf caps for sale i could take 4 of them. i replaced the 12pf caps and have extras. i do have another vmm26 monitor i could pull the power supply on and read...Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
SO i bought another monitor and replaced the 12pf caps the monitor comes on then off again after 3 seconds. i read resistor r525 and and it reads .9 Meg, can anyone tell me if this is a 1.5 meg resistor it is hard for me to read the color bands i would say it is brown/green/green. i did not have the 3pf caps but will get a couple of them but i wanted to replace resistors at the same time. Since they did not seem to read what they should.
i did see the pictures posted to this forum, awesome pictures i might add, still unsure of the resistor valu...Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
I replaced both 12pf 3kv caps inline with the ccfl and this did fix my monitor. thanks to all for the input on this post. BTW i have 18 12pf 3kv caps available if anyone should need any.Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
where was the best place to buy 2 of the 12pf 3kv caps?Leave a comment:
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Re: Vizio VX32L turns on with backlight, no video or sound
i found some on ebay for 1.00 each so i bought 4 of them, not knowing how many i would need. i did a search under this part number amc1117. replacing u15 fixed my system.Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
Well recap of the power supply hasn't helped.
I disassembled the lcd panel, not sure what to look at of the ccfl's but all looked clean to me. i believe i have some 5w 120K resistors, could you explain where and how to use them, i would think you are inserting across the pink and blue connectors in place of lcd, then supply i'm guessing should stayed power up as in working state.
i noticed with the main board and power/inverter laying on my desk with no ccfl connected that i dont read any voltage at U301 or Drain of Q301 possibly...Leave a comment:
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Re: Vizio VX32L turns on with backlight, no video or sound
PLain Bill, YOUR the MAN!!,, i replaced U15 and the TV is working fine. odd to me tho when i replaced U15 i couldn't read voltages on U15 like VI VO but yet TV turned on and worked fine. O well,,, all good that ends good, thanks so much,,Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
any other suggestions?Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
it has GK(M) then Y2A then 105o CHLeave a comment:
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Re: Vizio VX32L turns on with backlight, no video or sound
Plain Bill could i get you to respond to this update, PLEASE,,, thanks,Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
the resistance between the yellow circles is 436 ohms on a digital meter.
the resistance between the red circles is 436 ohms on a digital meter.
the voltage at the teal circles the one to the outside is 5v ~ 4.96v
the voltage to the second teal circle to the inside is 2.9v
i did not see a voltage change during picture to black screen.
i did not see a picture with a flashlight.
the capacitor is a samxon 680 micro F 16v.
thanks,Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
here you go thanks,...Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
what would you need pictures of and ill be glad to upload them. would i be time ahead to just purchase a inverter ckt? i would be glad to trouble shoot, with your assistance. i do have a o'scope and familiar with using one. oddly enough, i dont have a schematic of this tv or any tv and i do not know what or how much of this is the inverter ckt. this monitor was given to me from my boss and it is of great desire to fix this unit, especially if i could fix at the component level. your assistance would be very much appreciated.
thanks,Leave a comment:
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Re: Vizio VX32L turns on with backlight, no video or sound
Okay, so i took some pic's and i labeled one called 4533M (to help see location)- here are the voltages i read with tv plugged in to AC and nothing else.
u15 Gnd Vo Vi
1.4 2.3 5.13
u19 1.2 2.4 5.13
u21 0.1 1.2 2.4
u44 0.01 1.2 2.4
u22 2.02 3.3 5.15
u17 2.0 3.3 5.15
thanks,, maybe i just need to purchase a handful...Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
I do not have a spare ccfl, i tried removing one pair of connectors from the power unit( blue/black and pink/white) and also tried all disconnected except for one at a time. no flash from any scenario, every time the unit does the exact same response, unit comes on wait 4 seconds picture shows for 2 seconds then black screen again. i also have a vw32l im trying to fix, but obviously no parts are interchangeable. i have replaced c504, i really need to buy a esr meter, but currently dont have one. i would say the ccfl is okay, i read in another forum that...Leave a comment:
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Re: Vizio VX32L turns on with backlight, no video or sound
Sorry,, i will have to try a different camera to take pics with, from this one they will not upload, thanks,Leave a comment:
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Re: Vizio VX32L turns on with backlight, no video or sound
I have a VW32l-HDTV20 with similar issue. after reading the forums i need help also. the unit had a pop sound then quit, when powered the vizio stays amber one the front. it will show no other signs of life, the power supply has 5v but i can not get 12v or 24v at the power supply. i checked the main board as follows.
f1 is good and has 5v on either side, f2 is good and no voltage on either side. u17 on center leg has 3.5v, u15 low V 2.5, U21 low of 1.5v possibly lack of voltage from u19?? u19 has 2.8v. i dont have...Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
Is there anyone with a schematic or an ole board laying around they could verify the placement of caps c503,c504,c517 and c519. the power supply fits a lp2626 board # VMM26-F20I, the two different cap numbers are n3-3kv-sec and 12J-3kv-jnc,, thanks so much!Leave a comment:
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Re: Vizio LP2626/VMM26-F20I
Is there anyone that can elaborate on this CCFL dead inverter. thanks,Leave a comment:
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