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Einleitung

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

Note: While some issues may be corrected with a partial repair, this is NOT RECOMMENDED. One bad capacitor usually means the rest will fail!

  • Power issues (Present issue)
  • Excessive transformer/inverter hum (Present issue)
  • Backlight problems
  • Auto adjust problems (VGA) (Present issue)
  • Random power issues that only resolve if the monitor is unplugged
  • Video issues (Ex: Unstable image, video instability)

Original capacitor values (Delta 00A power supply)

NOTE: Most of these values are obsolete/revision specific - reference the power supply as well. MANY CAPACITORS WILL NEED TO BE UPGRADED as these are obsolete or hard to find.

  • 25V 1000uF (x2)
  • 10V 1000uF (x1)
  • 25V 220uF (x2)
  • 16V 2200uF inverter (x1/Early power supplies. Not found on later revisions.)
  1. CAUTION: If you are uncertain about handing high voltage parts, follow all provided warnings! A capacitor discharge tool is STRONGLY RECOMMENDED.
    • CAUTION: If you are uncertain about handing high voltage parts, follow all provided warnings! A capacitor discharge tool is STRONGLY RECOMMENDED.

    • The filter capacitor will hold the most residual charge. Use caution around this capacitor!

    • Unplug the monitor for 24-48 hours. Wait 5-7 days for the filter capacitor replacement.

  2. This monitor never came with a hinge cap. If yours has one, unclup the black marked points. Remove the 4 screws from the monitor stand with a Philips #1 screwdriver. The bottom screws should be removed first.
    • This monitor never came with a hinge cap. If yours has one, unclup the black marked points.

    • Remove the 4 screws from the monitor stand with a Philips #1 screwdriver. The bottom screws should be removed first.

  3. Remove 4 fine threaded screws from the back of the monitor with a Phillips #0 screwdriver. All of these screws are the same. This screw is unique. Sort it separately.
    • Remove 4 fine threaded screws from the back of the monitor with a Phillips #0 screwdriver. All of these screws are the same.

    • This screw is unique. Sort it separately.

    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 - Antwort

    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 -

  4. If the monitor has never been serviced, a flathead screwdriver may help - but will damage the plastic. On the bottom of the monitor, there are four slots to open the monitor. To release these clips, use a Jimmy or flathead screwdriver.
    • If the monitor has never been serviced, a flathead screwdriver may help - but will damage the plastic.

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

  5. If you are having trouble doing this, use a pry tool. Unserviced monitors can be stubborn.
    • If you are having trouble doing this, use a pry tool. Unserviced monitors can be stubborn.

    • With the monitor unclipped on the bottom, pull the sides of the monitor up. Do this slowly to avoid LCD or plastic damage.

  6. After these screws are removed, the power supply will be exposed.
    • After these screws are removed, the power supply will be exposed.

    • With the back of the monitor off, remove the 2 screws on the IEC power connector using a Phillips #0 screwdriver.

  7. If you do not have a nut driver on hand, needlenoose plyers can be used.
    • If you do not have a nut driver on hand, needlenoose plyers can be used.

    • 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.

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

    Our cables were in different order: from left to right: Blue, Blue, pink, pink

    Christof Dallermassl - Antwort

    I suspect that’s either because you’re in a 240V country (I seen you used the pound symbol for the currency you use) or it’s a different part then the US ones. Mine had a 120-240V 00A Delta unit.

    You have a different revision or revised power supply. I used a bd monitor for the guide with the 00A power supply and inverter filter capacitor.

    Nick -

  10. Board removal is optional. Disconnect the flat flex cable that goes to the control board.
    • Board removal is optional.

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

  11. Remove the 2 lower screws that hold the power supply shield to the monitor with a Phillips #0 screwdriver. Remove the 2 lower screws that hold the power supply shield to the monitor with a Phillips #0 screwdriver.
    • Remove the 2 lower screws that hold the power supply shield to the monitor with a Phillips #0 screwdriver.

  12. The lower shield does not have to be removed. However, it will make disassembly easier. On the right side of the monitor, remove the remaining screws holding the 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.
    • The lower shield does not have to be removed. However, it will make disassembly easier.

    • On the right side of the monitor, remove the remaining screws holding the 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.

  13. If you see bulged capacitors, assume there is a residual charge. If the filter capacitor is replaced, IT MUST BE DISCHARGED. In addition, the black screw (Blue) is a ground. This capacitor is only found on older power supplies. Replacement is recommended, but not required.
    • If you see bulged capacitors, assume there is a residual charge.

    • If the filter capacitor is replaced, IT MUST BE DISCHARGED. In addition, the black screw (Blue) is a ground.

    • This capacitor is only found on older power supplies. Replacement is recommended, but not required.

    • With the power supply shield removed from the monitor, identify the power supply. Take note of the values, including the inverter cap if present.

    • Remove the 4 screws from the power supply. Once this is done, lift up the power supply at a slight angle to clear the chassis. Do not lift too much or the connector may be damaged!

  14. If the PCB is marked to avoid mis-installation, the flux will wash these marks off.
    • If the PCB is marked to avoid mis-installation, the flux will wash these marks off.

    • If you are unsure of the position of the capacitors, mark the polarity with a permanent marker. If the capacitors are incorrectly installed, they will explode when power is applied.

  15. If you do not have flux on hand, solder can be used. Some flux is difficult to clean if overused.
    • If you do not have flux on hand, solder can be used. Some flux is difficult to clean if overused.

    • To prepare the board for capacitor replacement, add flux or solder.

  16. Use of a Helping Hands is recommended to avoid soldering iron contact. If you do not have one, hold the board at an angle. While a partial replacement may work, the remaining capacitors will fail. Change them all while it is apart. Refer to this guide for soldering tips: Wie man Lötverbindungen herstellt und entlötet. Move to a workspace with ventilation or use a fume extractor. Once in an appropriate workspace, desolder the old capacitors. Heat up each leg and remove it.
    • Use of a Helping Hands is recommended to avoid soldering iron contact. If you do not have one, hold the board at an angle.

    • While a partial replacement may work, the remaining capacitors will fail. Change them all while it is apart. Refer to this guide for soldering tips: Wie man Lötverbindungen herstellt und entlötet.

    • Move to a workspace with ventilation or use a fume extractor. Once in an appropriate workspace, desolder the old capacitors. Heat up each leg and remove it.

    • After removing the capacitors, clean up the old solder with a desoldering braid. Lift it with the iron when removing it.

  17. Check the capacitor polarity before soldering the new capacitors in. If they are installed incorrectly, they will explode!
    • Check the capacitor polarity before soldering the new capacitors in. If they are installed incorrectly, they will explode!

    • Install the new capacitors. Check the polarity and bend the leads so they do not come loose during installation.

  18. Once the polarity is verified, solder the capacitors in. After installation, cut off any excess lead. Once the polarity is verified, solder the capacitors in. After installation, cut off any excess lead. Once the polarity is verified, solder the capacitors in. After installation, cut off any excess lead.
    • Once the polarity is verified, solder the capacitors in. After installation, cut off any excess lead.

  19. After verifying there are no cold solder joints, clean the board. This can be cleaned with 91%+ Isopropyl or denatured alcohol.
    • After verifying there are no cold solder joints, clean the board. This can be cleaned with 91%+ Isopropyl or denatured alcohol.

  20. Put the monitor back together and test the repair.
    • Put the monitor back together and test the repair.

    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 - Antwort

Abschluss

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

11 weitere Nutzer haben diese Anleitung absolviert.

Nick

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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 - Antwort

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 - Antwort

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

Aiden Baker - Antwort

@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 -

@captainsnowball And I figured out what the issue may have been almost 4 years later :-(. I assumed the Delta 00A supply was the common unit and common sense would dictate the information on the caps I have is specific to the 00A part, but that wasn’t the case.

It’s been fixed for a while, but the issue has been ongoing for a long time because it’s been patched to help rather then properly fixed. I’m going to keep it for cases like yours where you need a starting point, but it had to be clarified. The monitor really needs to come apart to be sure, so I may remove it as it isn’t definite and may vary.

Nick -

Thanks! Lets see if I can get this working.

Aiden Baker - Antwort

We changed only the three 25V 220uF capacitors (two of them looked broken), and the backlight was working again. Thanks for the description! Spent 0,24€ and around an hour for the fix. As a beginner in soldering:-)

Christof Dallermassl - Antwort

If you have any further problems, replace the rest of the caps at the same time. That will sort out the problem if it isn’t caused by another failure.

Nick -

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