Question about LG 42LC2D 42 in. LCD HDTV

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How to adjust va,vs,vr set-up and set-down? - LG 42LC2D 42 in. LCD HDTV

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If its an LCD TV as stated (42LC2D), you do not adjust Va/Vs etc. this is only done on Plasma TV's especially after replacing either the power supply or the screen itself.

Posted on Oct 21, 2013

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How to reset the Kenwood vr-716


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Memory back up function
Please note that the following items will be deleted from the unit's
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2 Answers

Beko 42 plasma tv


i have encounterd a simular problem with sets like this. THere are voltages called va and vs voltages that have to be certain levels. when the set warms up thes voltage change and causes the symptoms you decscribe. ussally there is a sticker in these plasma that list what these voltages should be it is relative to the type of panel used in the set.. example the one im looking at right now is va=72 volts vs=175 volts.. there a mini pot adjustment that can be used to adjust these and sometime it might help. WARNING .any adjustment made to set can potentially cause more problems and should not be atempted by non technicians.

Jan 14, 2008 | Televison & Video

Tip

How to Calibrate your plasma panel for less heat dissipation


First you need to take the back off the tv....i know...lol..lots of screws.
try to pile all screws by size.
Now that you have the back off, in the power supply of the unit find
the Vs and Va voltage lines...connect a voltmeter to the Vs line.
on the panel there's a sticker with the factory voltage settings...try to bring
the Vs 10 volts less than what the factory adjusted it to. do the same for the Va voltage line.
The reason for that is that it will deliver less heat on the panel, and it'll
extend the life of your plasma tv.
Thats because what brakes them down is heat.

on Jan 22, 2010 | Televison & Video

1 Answer

Sportsart treadmill error 7


Treadmill Parts for SportsArt Belts Motor Brushes SPORTSMITH net
ERR7 Definition: The display board main IC didn't receive the incline variable resistor (VR) value, or the value exceeds the set range. Explanation: The incline VR voltage changes as the incline motor operates, and the display board CPU uses the VR voltage to calculate the incline position. Without this value, the CPU cannot instruct the incline motor what to do, so ERR? appears. Or when the incline set is out of alignment, the VR value exceeds the set range.

The following is a list of possible solutions:

1. Incline Set a) Inspect whether the Incline ERR LED on the drive board lights. This LED indicates that the incline set has exceeded the range. b) Inspect whether the incline set mechanically exceeds range. On DC incline motors, at the 0% position, the line on the thin incline pipe will not align with the end of the thick pipe. On AC motors, at the 0% position, the red line will not appear even with the bottom of the incline window in the incline set. See Incline Troubleshooting Manual for details. c) Inspect whether the incline VR voltage exceeds the range: Put multimeter probes on the incline VR set blue and green wire connectors, while keeping the wires connected. Refer to Incline Troubleshooting Manual for the voltage range for your treadmill. If the incline range is exceeded, either mechanically or electronically, calibrate the incline set. Refer to the Incline Calibration in the Incline Troubleshooting Manual for directions. If the incline set cannot be calibrated electronically, replace the incline VA. If the incline set is stuck and cannot be unstuck, replace the whole incline set. 2. Drive Board Inspect incline voltage on the blue and green wires at the drive board. If voltage is within range, and ERRl appears, inspect drive board component connections and components for wear. 3. Ribbon Cable Inspect ribbon cable for breaks. Inspect connections at the display and drive boards. 4. Display Board Inspect IC connections. Push down to secure connections. Re-insert les.


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1 Answer

How do I decrease the vs voltage on my Vizio tv


I take it you have a plasma? There are pots on the power supply board for adjusting VS and VA. Are you wanting to adjust the voltage due to red snow problems???

Jul 23, 2012 | Televison & Video

1 Answer

To make a long story short originally bought the LG du-42px12x with a bad ysus board(no picture just sound) replaced the ysus now the picture and sound work great but there are colorful dots all over the...


Sounds like the y sus was blown out but what cause it. Were you careful when you were checking voltages? As long as you didn't short 2 components together, your y sus should be fine. Unless the y buffer up and/or down blew them out. Even the panel could blow it.

Basically you need a scope to adjust the ramps and everything. You can adjust VA and VS with a meter. If you don't have access to a scope, then just start changing the ramps etc by eye. It might take a little bit to get but eventually you'll get it.

Mar 13, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

1 Answer

Red dots on black backgroungs


Either needs new "Y/Z SUS" kit or panel. Sometime adjusting the Vs and Va voltages on the power supply will do the trick. Up or down only 5 volts

Dec 14, 2009 | LG 42PC3D 42 in. Plasma Television

4 Answers

My TV has little green dots all over the picture.


You have the problem called "diffusion" errors, or some call it non-erasing pixels, etc.. You may be able to adjust the voltages to fix the issue. The 2 main voltages are VS and VA. The value they should be is listed on the back of the plasma panel. If one is off, then it could be the cause. Some manufacturers recommend turning up or down vs or va by 10% to fix this type of issue. Unfortunately, it can also be caused by many board in the tv.. power supply (where vs and va are generated) plus also the y and z drive boards, buffer boards, etc. If they are across the whole screen, suspect the power board and Y board most likely. I can talk you through all the adjustments but you will need a dc voltmeter capable of handling 250v. Let me know your skill level and we can fix this together.

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1 Answer

50pc5d LG plasma TV Blue glow/red pixels


THIS PHENOMENON IS A CHARACTERISTIC OF PLASMA TV SETS...KNOWN AS DIFFUSION ERRORS OR COMMONLY..SPARKLING...ON LG SETS...THE PANEL VOLTAGES MUST BE CHECKED AND ADJUSTED IF NOT WITHIN .5 V...PLUS OR MINUS..Vs...and Va...THE OTHER ADJUSTMENTS ARE ON THE Y-SUS BOARD..Vset DOWN...Vset up...RAMP up...RAMP down...these should be adjusted by professional tv personnel with experence...JOE ACE

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5 Answers

Red Spots on 42" LG plasma t.v.


The dancing spots can be sorted by you taking the back panel off and adjusting the va and vs adjusting nobs , you will need a multimeter so you you can adjust the voltage to the right settings that are on a sticker on the back of the panel. You must remember to connect the black pointer to the earthed wire to get and the red to the live wire that has va or vs at the end of it. The right voltage measurements will be be found on a sticker at the back of the panel.
I advise you not to touch the setup and setdn nobs as these are factory settings and should not be touched.
If the va and vs do not sought the problem then try the vy and vsc adjusting nobs but only touch those if the va and vs does not fix your problem first.
Once you have done everything right your tv should be better then before with clearer pictures.
I hope this helps and be careful not to get zapped.

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