Question about Emerson LD190EM1 19 in. LCD TV/DVD Combo

1 Answer

Why is it flashing colors all the time instead of actually working?

I took it apart and looked for an eight pin chip like the other answer says and there is no eight pin chip in it. (Try Again)...

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If you can locate the power supply (normally a separate block of parts, shielded) check the tops of any cylindrical arts you see which have aluminum showing at the top.
Look closely for any that seem to be less than flat (bulging).
If you see any of these looking like this, they re electrolytic capacitors that are failing or have failed.

These a lousy parts and often the cause of any kind of problem you might have.

Saving a few cents on these and failing to protect these chemical devices by adding a ceramic capacitor in parallel to shunt the high frequencies past the electrolytic cap is the most frequent cause of failure.

Posted on Nov 23, 2014

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6ya6ya
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Posted on Jan 02, 2017

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I am a Pinterest pinner. When I post a pin, I get a PIN FAILED TO UPLOAD message and then a minute later the app will send more copies of my original pin - from 3 - 15 copies. What do I do? Please answer...


My guess is you hit pin several times while it didn't look like it was working and that's why it pinned more times. Every time you hit pin/entered it, it was actually working on their end. Sometimes patience goes a long way. I don't know if you ever experienced this but sometimes you might try to open a window and it just won't work, or so we think, but after it finally works, you get 5 windows popping up-only because each time it registered but we didn't think it did because it took forever. After one time of clicking, if it takes forever go take a break and come back. You can stop it and then refresh to see if it actually did take.

But if you find a pin that will just not pin after clicking it only once, go here:

PIN FAIL

Jan 03, 2015 | Pinterest.com

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How-To Save hundreds of dollars by using all the toner in your HP-2550 series...


Most laser printers on the market today use a computer chip to tell the printer/computer when it's empty. The chip does not have any kind of physical sensor to tell whether the toner is actually low or not, instead it keeps track of how many pages were printed using the toner cartridge. (there is a separate chip on each cartridge, so in a color printer there are 4 chips one of each color and one on the black)

The chips tell your printer/computer that they are low or empty long before the toner is actually low or empty. If you replace them when the computer tells you to you are throwing away a lot of good toner.

To make things worse, the printers will not print at all (color or b/w) once it believes that one of the cartridges is empty.

There are 2 ways to 'trick' your printer into not believing that a cartridge is empty.

(Solution 1)
The chips that are on the cartridges can be swapped out with new ones. There are several vendors that sell aftermarket chips for your 2550 toner cartridges. Do a general search for 2550 reset chip and you will find vendors that sell reset chips. You can also find them on eBay for around $20-$25 a set.

The chips themselves are very simple to replace. Use a small screwdriver and pry off the old chip. They are just held in place with a strong piece of double sided tape. If the old tape is still there and good, you can just put the new chip in it's place, otherwise stick the new one on with some double sided tape.

This trick can also be used to extend the life of your printer drum, as you can buy reset chips for it as well.

(Solution 2) A bit clunky, but this one is free
You can literally trick your printer into not reading the info from the chip and thus not stopping you from printing. This solution is not as nice and clean as the first one, but it does work and it's free. You will have to repeat this solution from time to time if the printer stops working.
  • Step 1: Power off your HP2550 printer.
  • Step 2: While the printer is off, press and hold the big green button on the printer.
  • Step 3: While still pressing the green button, power the printer back on using the power button (lower back corner on the left side of the printer).
  • Step 4: Continue to hold the green button while the printer initializes. During this time all of the front lights will turn on one at a time and then all but the first green light (the ready light) will turn off one at a time - this step can take several minutes to be patient and keep holding the green button.
  • Step 5: When all the lights have turned off except the front green light, release the big green button. The front lights with flash a few time, while they are flashing, press and release the red circle button 1 time.
  • Step 6: You may have to reload the printer driver at this point. If your computer has detected new hardware then go ahead and reinstall the driver.
Be aware
  • Some of the back cartridge lights (the back 4) may stay on or flash, this is OK.
  • The front green 'Ready' light will no longer be on, again this is OK.
  • If at any time your printer stops printing all together, then go through these steps again. I have had to redo this about 10 times over the past 2 1/2 years. It is a nuisance, but it saves a great deal of money.
  • If this does not work the first time then try it again. Each step must be done in order and correctly otherwise it does not work.
I have had my printer for almost 3 years now. The original cartridges that came with my printer stopped working because they told the printer they were empty about 2 1/2 years ago. I started doing this at that time and all 4 of mine (I have a 2550 color printer) are all still working and have not started to fade, so there was a lot of toner left when my printer said it was empty.

on Jan 06, 2010 | Office Equipment & Supplies

Tip

How to use all of the Toner in your HP 2550 series printer


Most laser printers on the market today use a computer chip to tell the printer/computer when it's empty. The chip does not have any kind of physical sensor to tell whether the toner is actually low or not, instead it keeps track of how many pages were printed using the toner cartridge. (there is a separate chip on each cartridge, so in a color printer there are 4 chips one of each color and one on the black)

The chips tell your printer/computer that they are low or empty long before the toner is actually low or empty. If you replace them when the computer tells you to you are throwing away a lot of good toner.

To make things worse, the printers will not print at all (color or b/w) once it believes that one of the cartridges is empty.

There are 2 ways to 'trick' your printer into not believing that a cartridge is empty.

(Solution 1)
The chips that are on the cartridges can be swapped out with new ones. There are several vendors that sell aftermarket chips for your 2550 toner cartridges. Do a general search for 2550 reset chip and you will find vendors that sell reset chips. You can also find them on eBay for around $20-$25 a set.

The chips themselves are very simple to replace. Use a small screwdriver and pry off the old chip. They are just held in place with a strong piece of double sided tape. If the old tape is still there and good, you can just put the new chip in it's place, otherwise stick the new one on with some double sided tape.

This trick can also be used to extend the life of your printer drum, as you can buy reset chips for it as well.

(Solution 2) A bit clunky, but this one is free
You can literally trick your printer into not reading the info from the chip and thus not stopping you from printing. This solution is not as nice and clean as the first one, but it does work and it's free. You will have to repeat this solution from time to time if the printer stops working.
  • Step 1: Power off your HP2550 printer.
  • Step 2: While the printer is off, press and hold the big green button on the printer.
  • Step 3: While still pressing the green button, power the printer back on using the power button (lower back corner on the left side of the printer).
  • Step 4: Continue to hold the green button while the printer initializes. During this time all of the front lights will turn on one at a time and then all but the first green light (the ready light) will turn off one at a time - this step can take several minutes to be patient and keep holding the green button.
  • Step 5: When all the lights have turned off except the front green light, release the big green button. The front lights with flash a few time, while they are flashing, press and release the red circle button 1 time.
  • Step 6: You may have to reload the printer driver at this point. If your computer has detected new hardware then go ahead and reinstall the driver.
Be aware
  • Some of the back cartridge lights (the back 4) may stay on or flash, this is OK.
  • The front green 'Ready' light will no longer be on, again this is OK.
  • If at any time your printer stops printing all together, then go through these steps again. I have had to redo this about 10 times over the past 2 1/2 years. It is a nuisance, but it saves a great deal of money.
  • If this does not work the first time then try it again. Each step must be done in order and correctly otherwise it does not work.
I have had my printer for almost 3 years now. The original cartridges that came with my printer stopped working because they told the printer they were empty about 2 1/2 years ago. I started doing this at that time and all 4 of mine (I have a 2550 color printer) are all still working and have not started to fade, so there was a lot of toner left when my printer said it was empty.

on Dec 30, 2009 | HP LaserJet 2550n Printer

1 Answer

Instrument cluster black


If you have the 3-Panel Digital Cluster, with the Fuel on the Left.., Speed in Center.., and Odometer on the Right.., and the Cluster is going Wacky.., works one minute then craps out the next.., take the dash apart and remove the Digital Cluster. Take your time when unplugging the harness behind the cluster, use a mirror if you have to.., to unplug it correctly.

The problem with this Digital Display is the Solder Connections.., at the 14-Pin IC Chip.., which is directly behind the Odometer Display on the main Circuit Board. When you get the Cluster removed.., again.., take your time.., and take the cluster apart.., so you get the main circuit board out. The 14-Pin Integrated Circuit (IC) Chip is marked with an IC2 on the main board.., which as mentioned is behind the Odometer Display. The IC Chip is usually Black in Color.., and is '@' 1/4" x 3/4" You will need a Soldering Iron.., @ a 30 watt with a pointed tip.., don't use a Soldering 'Gun'., too hard to use and too hot.., you don't want to cause yourself more problems by messing up the board circuit tracks by overheating them.., so it's best to use a smaller iron. It is a good idea to have some fine strand solder on hand.., but you should not need it.., all you want to do.., is to 'Re-Tin'.., or 'briefly' melt the Solder at all 14-pins of the IC Chip.., on the back side of the board.., to Re-Flow or Re-Solder the Connections of that 14-Pin IC Chip to the Circuit Board. That's all it is..!!!

I just repaired my 1991 Olds Cutlass Supreme 3.1.., 3-Panel Digital Instrument Cluster in this manner.., and it has been "Perfect" for a month now..!!

Take your time.., get it all back together.., and my bet is that it will be good to go for many more years to come..!!

Good Luck.

Oct 10, 2012 | 1991 Oldsmobile Cutlass Supreme

2 Answers

Got a Nikkai Bluetooth FM Transmitter (A17KC). Lost the instructions and can't remember the PIN code for bluetooth pairing. Anyone help.


Hi Dave

Got one today- the instructions say use 8888.

You have probably found your answer but hopefully this might be useful to anyone else looking for the answer.

Sep 26, 2011 | Radio Communications

1 Answer

I checked the TTL flash contact at the right side of the X700 hot shoe, but no TTL flash control, instead the flash unit gave a full burst.


This could be several things. From loose/dirty cable connectors to circuit board issues. It could totally be just the age of the batteries and capacitor in the flash taking a long time to charge, making it look like it took full power. Put in new batteries or take out the old ones, rub the contacts on your jeans, and put them back in.
When you quit laughing, this actually works. It removes that thin patina that develops on the battery terminals over time.
It's also possible that the flash sensor is dead, but that's the least likely item.

Apr 25, 2010 | Minolta X-700 35mm SLR Camera

1 Answer

Colors dont line up and green is "dancing" all over screen


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

May 15, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Red color convergence


Looking from the back of the TV there are 2 large finned aluminum heat sinks just right of center. The chips are mounted on them. The one that you need to change is the one closest to you. It will be marked on the bottom side of the board with the letter " V " Unfortunately the chip and heat sink have to be removed at the same time because there is no room to loosen the chip in circuit. This job requires excellent soldering and de soldering skills. There are tiny surface mounted components near the pins of the chip that can be easily dammaged. You also need to check for any burned resistors or open pico fuses near the chip. Use original Sanyo IC`s no generics. Be liberal with the heat sink compound. Good luck and yes you are on the right track. One last note, just change only 1 chip not both unless you are unsure.

Dec 13, 2007 | Toshiba 50H82 50" Rear Projection...

5 Answers

Sound no picture


i can tell you the soloution its the digital board has a chip on there that needs to be cleaned or soldered directly to the board for the problem to be sorted for good

Oct 21, 2007 | JVC LT-26C31 26 in. LCD Television

3 Answers

Broken flash


okay my holga flash was broken too....the batteries were working just fine cus when i turned it on, the little back light came on and the whining sound happened, but then click...no flash! so i took the back off and made a small repair and it worked!

so this is how to fix it (if its the same problem...i.e. everything electrical is working but the actual flash):

use a small screwdriver to remove the two small screws inside the camera (take out the frame and they are on the bottom and top). the front will pop off and you should be able to see the wiring.

ebbee78.jpg

where i circled in red was the problem. that curved metal piece at the bottom was too straight and was not making contact with the shutter (the top little metal prod sticking outta the circle) when i clicked it. so just bend it forward to how it looks in the picture...then do a practice click to make sure it makes contact. you can even try it with the batteries in, but be careful!! its electricity!

hope this helps!!

Aug 19, 2006 | Holga 120CFN Film Camera

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