|
Introduction |
| 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) | | * Backlight problems | | * Auto adjust problems (VGA) (Present) | | * 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: I based the capacitor list on my monitor's specific power supply (Delta 00A). YOURS MAY BE DIFFERENT; YOU MUST OPEN THE MONITOR TO VALIDATEVERIFY WHAT YOU NEED,VALUE CAPACITORS ARE NEEDED.DO NOT BUY ANYTHING FIRST In addition to this, some capacitors may be parts of the original power supplies share a common problem: They arehard to find or unavailable like to likeas they are no longer made, or commonly used.mostly phased out and are "obsolete in practice" These must will need tobe substituted and replaced with the nearest value replacement in voltage or uF, and this must be done for all capacitors with the old rating.upgraded This upgrade ''***[br]
***''Upgrading these partswill not impact the monitor electrically ,as long as the upgrade is balanced (Example: original 25V capacitor is obsolete; same uF available in 35V 35Wor same voltage available as a slightly better partwith a higher max uF rating) at 25V., but these upgrades MUST BE DONE AT THE SAME TIME to ensure it doesn't cause a problem''*** | | | ***NOTE: I have not attempted partial capacitor replacements with upgrades, so I do not know how keeping the originals and upgraded capacitors will affect the board. Even then, this is terrible practice; one going out usually means the others are next.''[br] | While I did my best throughout this guide's life to keep up with part phaseouts (or parts that areand "obsolete in practice" parts) and pickedwith parts I anticipate will last a long timebe sold for years, I may get caught off guard and need to address things after you found a part was not available and had to pick an upgrade yourself.''*** | | | * 25V 1000uF (x2) | | * 10V 1000uF (x1) | | * 25V 220uF (x2) | * 16V 2200uF (x1)
**, ***Inverter coil capacitor''Found on early power supplies and is used to drive the inverter transformer. This will not be presentNot used on most power suppliessupply revisions as it was later removed.''***) |
|