Danger
Опасно для жизни
В результате несоблюдения правил техники безопасности можно получить травму или может наступить смерть. Будьте предельно осторожны и следуйте всем указаниям!
Danger

Введение

If your AL2216W is having problems, it is very likely that it is a capacitor issue. Here are some signs of bad capacitors:

Note: While some issues may be corrected with a partial capacitor replacement, this is never recommended - it is better to change all of the caps at the same time to avoid having to repair the same issue multiple times.

  • Power issues (This monitor has this issue)
  • Excessive transformer hum (This monitor has this issue)
  • Excessive inverter hum (This monitor has this issue)
  • Troublesome Auto adjustment (This monitor has this issue)
  • Backlight problems
  • Power problems
  • Video issues (Examples: Unstable image, Image drops when connected to a computer, does not play nice on higher resolutions, random image drops)
  • Random power issues that may only resolve if the monitor is physically unplugged.

Original capacitor values (Only use these if you do not want to install better caps then the monitor came with)

  • 25V 1000uF (x2)
  • 10V 1000uF (x1)
  • 25V 220uF (x2)
If you are uncertain about holding parts like power supplies, it is best to follow all provided warnings. A capacitor discharge tool should also be built and kept on hand.
  • If you are uncertain about holding parts like power supplies, it is best to follow all provided warnings. A capacitor discharge tool should also be built and kept on hand.

  • The filter capacitor is the most dangerous and is the most prone to holding a residual charge.

  • Unplug the monitor and leave it unplugged for 24-48 hours. If you plan on doing a filter capacitor replacement, wait 5-7 days.

Добавить комментарий

This monitor never came with a hinge cap. If yours still has it, snap it off from the points marked in black. Remove the stand from the monitor. The 4 screws that have to be removed are marked. While you do not need to remove these screws in a specific order, it is better to remove the bottom screws first.
  • This monitor never came with a hinge cap. If yours still has it, snap it off from the points marked in black.

  • Remove the stand from the monitor. The 4 screws that have to be removed are marked. While you do not need to remove these screws in a specific order, it is better to remove the bottom screws first.

Добавить комментарий

Remove 4 fine threaded screws from the back of the monitor. There is no particular order you need to follow here, since the screws behind the panel are the same length and type. This screw is unique and only goes in one place. Set it aside separately from the other screws. The thread on this screw is different from the others.
  • Remove 4 fine threaded screws from the back of the monitor. There is no particular order you need to follow here, since the screws behind the panel are the same length and type.

  • This screw is unique and only goes in one place. Set it aside separately from the other screws. The thread on this screw is different from the others.

My monitor, an Acer 2216W verion BL from 2007, has no screws other than the monitor stand screws. The back bezel is solidly glued down. No luck removing it so far :(

Daniel Schwarz - Ответить

The back on this version is held together by snaps along the edge. I was able to get it off by putting a knife in the gap and hammering down onto the knife with a screwdriver handle. However, the circuitboard is completely different.

Evan Richards -

If the monitor has never been serviced, additional force may be required to open it. However, using too much will do more harm then good. On the bottom of the monitor, there are four slots to open the monitor. To release these clips, use a Jimmy or flathead screwdriver. Warning: Use of a flathead screwdriver will damage the plastic.
  • If the monitor has never been serviced, additional force may be required to open it. However, using too much will do more harm then good.

  • On the bottom of the monitor, there are four slots to open the monitor. To release these clips, use a Jimmy or flathead screwdriver. Warning: Use of a flathead screwdriver will damage the plastic.

Добавить комментарий

If you are having trouble doing this, a pry tool can help. This issue is more likely to come up a monitor that has never been opened.
  • If you are having trouble doing this, a pry tool can help. This issue is more likely to come up a monitor that has never been opened.

  • With the monitor unclipped on the bottom, pull the sides of the monitor up. Do this slowly to avoid damaging the plastics and potentially the panel.

Добавить комментарий

After these screws are removed, you will expose the power supply.
  • After these screws are removed, you will expose the power supply.

  • With the back of the monitor off, remove the 2 screws on the IEC power connector.

Добавить комментарий

If you do not have a Nut driver on hand, needlenoose plyers can also be used for this step.
  • If you do not have a Nut driver on hand, needlenoose plyers can also be used for this step.

  • Remove the 4 screw pins for the video cables from the monitor. Use a 5mm Nut bit/driver to remove the screw pins from the power supply shield.

Добавить комментарий

Disconnect the CCFL tube cables from the power supply board. Disconnect the CCFL tube cables from the power supply board.
  • Disconnect the CCFL tube cables from the power supply board.

Добавить комментарий

The board does not interfere with disassembly and does not need to be removed. Disconnect the flat flex cable that goes to the control board.
  • The board does not interfere with disassembly and does not need to be removed.

  • Disconnect the flat flex cable that goes to the control board.

Добавить комментарий

Remove the 2 bottom screws that hold the power supply shield to the monitor. Remove the 2 bottom screws that hold the power supply shield to the monitor.
  • Remove the 2 bottom screws that hold the power supply shield to the monitor.

Добавить комментарий

On the right side of the monitor, remove the remaining screws holding the upper shield in place. Lift the lower plate up while removing the power supply shield to remove it from the monitor. Once this is done, you will have access to the power supply. Removal of the lower shield is not required to access the power supply. However, removing it will make disassembly easier. If you choose to remove it, unclip the plastic tabs that are used to keep it in place.
  • On the right side of the monitor, remove the remaining screws holding the upper shield in place.

  • Lift the lower plate up while removing the power supply shield to remove it from the monitor. Once this is done, you will have access to the power supply.

  • Removal of the lower shield is not required to access the power supply. However, removing it will make disassembly easier. If you choose to remove it, unclip the plastic tabs that are used to keep it in place.

Добавить комментарий

If you see bulged capacitors, treat them as if they have residual charge. This may mean discharging them as a safety precation. In most cases, the filter capacitor does NOT need to be replaced. If you need to replace this capacitor, discharge it before replacement. The black screw (marked in Blue) is a ground screw. It does not go anywhere else. It is also important that you avoid losing this screw.
  • If you see bulged capacitors, treat them as if they have residual charge. This may mean discharging them as a safety precation.

  • In most cases, the filter capacitor does NOT need to be replaced. If you need to replace this capacitor, discharge it before replacement.

  • The black screw (marked in Blue) is a ground screw. It does not go anywhere else. It is also important that you avoid losing this screw.

  • Only lift the power supply board at a slight angle. Lifting it any more then this could result in pin or video processing board damage.

  • If you cannot find the original capacitors, it is okay to substitute the original capacitors with larger replacements. It is not necessary to match the capacitors used by the factory.

  • This capacitor is only used on older power supply boards. If your board has this capacitor, replacement is recommended but is generally not required unless there is obvious bulging or leakage.

  • With the power supply shield removed from the monitor, identify the power supply. Along with the capacitors previously mentioned, take note of any additional capacitors that were not mentioned (ex: Capacitor by the inverter coil).

  • Remove the 4 screws from the power supply. Once this is done, lift the power supply up at a slight angle to clear the mounting holes so you can remove the power supply from the monitor.

Добавить комментарий

If you are unsure of the position of the capacitors, write the polarity on the solder mask as a reference using a permanent marker. If you install the capacitors incorrectly, they will explode when given power. Note: These marks will wear off when the capacitor is soldered in.
  • If you are unsure of the position of the capacitors, write the polarity on the solder mask as a reference using a permanent marker. If you install the capacitors incorrectly, they will explode when given power. Note: These marks will wear off when the capacitor is soldered in.

Добавить комментарий

If you do not have flux on hand, add fresh solder to the capacitor leads.
  • If you do not have flux on hand, add fresh solder to the capacitor leads.

  • Do not use a lot of flux. Using too much will complicate board cleaning later.

  • To prepare the board for capacitor replacement, put fresh flux or solder on the capacitor leads. This will help ease the removal process.

Добавить комментарий

Do not touch the soldering iron while removing the old caps! If you do not have something like Helping Hands, hold the board at an angle. When one or two capacitors fail, the rest are likely to fail. For this reason, it is best to replace them as a set at once. If you do not know how to solder, refer to this guide: How To Solder and Desolder Connections
  • Do not touch the soldering iron while removing the old caps! If you do not have something like Helping Hands, hold the board at an angle.

  • When one or two capacitors fail, the rest are likely to fail. For this reason, it is best to replace them as a set at once.

  • If you do not know how to solder, refer to this guide: How To Solder and Desolder Connections

  • Take the board out to a place you can solder the new caps on. To remove the capacitors and heat one leg up while the solder is melted. Lift the leg up once the solder is melted. This should be done for both sides of each capacitor you are replacing.

  • With the capacitors removed from the power supply board, take your desoldering braid and clean the old solder up. The desoldering braid needs to be lifted with the soldering iron or it will stick to the board.

Добавить комментарий

It is important to check polarity BEFORE soldering the capacitors in. If the capacitors are incorrectly installed, they will explode when given power.
  • It is important to check polarity BEFORE soldering the capacitors in. If the capacitors are incorrectly installed, they will explode when given power.

  • Install your new capacitors. Put your new capacitors in the corresponding holes and bend the leads to keep them from falling out.

Добавить комментарий

Once you have verified the polarity, solder the new capacitors in. Once the capacitor is soldered, cut the excess lead. Do this for each replaced capacitor. Once the capacitor is soldered, cut the excess lead. Do this for each replaced capacitor.
  • Once you have verified the polarity, solder the new capacitors in.

  • Once the capacitor is soldered, cut the excess lead. Do this for each replaced capacitor.

Добавить комментарий

After verifying there are no cold solder joints, clean the board. The best way do this is to use high concentration rubbing alcohol (91% or better).
  • After verifying there are no cold solder joints, clean the board. The best way do this is to use high concentration rubbing alcohol (91% or better).

Добавить комментарий

Put the monitor back together and test it by giving it a signal. If your monitor works, an image should be produced.
  • Put the monitor back together and test it by giving it a signal. If your monitor works, an image should be produced.

Excellent guide. Really helped in getting the casing apart and pulling things off in the proper order to not damage anything. It turns out nearly every capacitor on mine was blown, so I instead just ordered a replacement board (which was cheaper than buying all new capacitors).

gtxcrusader - Ответить

Заключение

To reassemble your device, follow these instructions in reverse order.

10 участников успешно повторили данное руководство.

Nick

Member since: 10.11.2009

39 251 Репутация

Автор 38 руководств

Команда

Master Techs Member of Master Techs

Community

274 членов

Автор 713 руководств

Комментариев: 23

I did not replace the large capacitor on the Acer monitor yet. All other caps have been replaced. I may have to replace the FSPO55- ZP102A as it has a hot spot beside it. I don't know if the part number is right? Do know where I can buy it. Tom B

Thomas Brady - Ответить

These older CCFL panels usually burn on the PCB by the inverter coil and main transformer (the Delta branded part, in this case). The LED monitors limit the failure points to the transformer.

It sounds like your PCB got burned from the heat by the transformer or the inverter coil. This is very common and the boards are designed to take it. However, if you are concerned you should buy a new power supply board altogether if that makes you more comfortable.

Nick -

In step 12, replacing the capacitors with ones with a different capacitance rating instead of using a capacitor rated for higher voltage makes no sense to me electrically. The capacitance rating is the important part, if you use a capacator rated for say 35 volts when the original is rated for 10 makes no difference whatsoever. the rating just means MAX voltage.

Brennan Gomolka - Ответить

Thanks @nick! Just waiting for the parts to come in!

Aiden Baker - Ответить

@nick which one is the filter capacitor?

Aiden Baker -

The big one on the AC side.

Nick -

@nick is it OK if I combine the exact replacement capacitors and the “upgraded” on the power supply? or do I only use original or upgraded?

Aiden Baker -

It’s okay to use the matched and upgraded caps at the same time. The ones I upgraded were hard to find since they’re more or less obsolete.

Nick -

Ok thanks! reason why is I got all my replacements scrapping dead Power supplies. so I managed to get some and some others

Aiden Baker -

@nick bridging some of the lines that are covering the board doesn’t matter does it? they dont seem to connect anything.

Aiden Baker -

That’s a way to get extra groundplane with minimal cost. By design, it gets covered in solder during assembly. I wouldn’t leave solder on those.

Nick -

also one more thing. which capacitors do the upgraded ones replace?

Aiden Baker -

@nick so not good if they bridged?

Aiden Baker -

Yeah. It’s a bad idea to bridge it. The places the upgraded caps go are listed in the part descriptions as a note if it was replaced.

Nick -

OK. I didn’t expect to find the monitor I needed to replace on ifixit out of tons of others that are not. thanks for making the guide!

Aiden Baker -

Most of the monitors people usually buy are low end and are rarely worth repairing or the owner is too lazy to bother because of how cheap a good one is today. I only ever see good monitors like Dell Ultrasharps in use by businesses.

On one hand it’s a waste but if I can get it and fix it for relatively little money I’ll try.

Nick -

@nick which one is the inverter capacitor?

Aiden Baker -

The capacitor by the coil. Some revisions don’t have it.

Nick -

the one in step 12?

Aiden Baker -

The one with the red box around it.

Nick -

@nick hasnt turned on. I only see a very dim red light from the power button and pressing it does nothing.

Aiden Baker -

same as before. I did not replace all though. @nick

Aiden Baker -

Thanks! Lets see if I can get this working.

Aiden Baker - Ответить

Добавить комментарий

Просмотр статистики:

За 24 часа: 2

За 7 дней: 30

За 30 дней: 184

За всё время: 16,364