Acer X223W - 22" Widescreen LCD Monitor Montageanleitung

Andere Handbücher für X223W - 22" Widescreen LCD Monitor

2

Inhaltsverzeichnis

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ACER X223W Disassembly Instructions.

Bob Felstead May 30, 2010

1. Firstly, before doing anything, you will need the following to hand,-

•Sellotape or some other form of tape

•Scissors

•Medium philips screwdriver

•Small blade screwdriver

•Blunt knife

•Marker pen (fibre/felt tip)

•Clear, padded work surface. I used kitchen table with a travel rug beneath the

table cloth. This is to avoid damage to the fascia and LCD components.

2. Step 1 – place the monitor face down on the work surface, remove the monitor stand by

using the small bladed screw driver to remove the two plastic screw covers. You should use

little to no force. Behind each cover are 2 x philips screws, remove both. The stand should no

come free. I placed the screws back into the screw holes of the stand, and taped the screw

covers behind them to hold the various pieces in place.

3. Step 2 – remove philips screw at centre bottom rear. Tape this to monitor stand foot.

4. Step 3 – Turn monitor over and starting at the bottom centre gently push rear of fascia case

in and insert a blunt knife blade. Gently work along base, then one side followed by the

other. Take your time and AVOID the controls in the LCD monitor base. There are catches

along the bottom and sides. These need to be gently released. When you've opened the sides

and bottom, gently rotate the fascia up from the bottom, using the top as a hinge. At around

15 – 20 degrees, you should be able to release the top catches too.

Rear of X223W with stand removed.

5. Step 4 - Once you've removed the fascia there are 2 retaining screws holding the LCD to the

case at the rear. Remove them all, gently lift the LCD from the case rear and return the

screws to the unit so that you don't loose them.

Use a blunt knife to open the LCD monitor screen.

Retaining screws for LCD unit at both sides.

6. You're now left with the LCD screen, PSU etc.

7. Step 5 - Mark the illumination wires using the fibre tip pen – or however you wish to do so.

8. Step 6 - Remove the wires and the silver tape which holds the metal PSU case in place. You

will need to replace this when re-assembling the unit. Mark the position of the PSU case

with the fibre tip before removal.

LCD & Protected PSU etc

Backlight connection, label and remove wires.

9. Step 7 - To remove the PSU, you will have to unstick the ribbon cable for the monitor

controls. Gently peel the ribbon cable off. DO NOT un-twist the ribbon cable. Simply lift it

up and lift the metal case. Take care – get someone to hold the case whilst you remove the

PSU. NOTE when re-assembling the position of the monitor controls.

10. Step 8 – There's a black insulating plastic film below the PSU. Remove this and keep it safe.

The PSU is held in place by 4 screws. The LCD driver is held in place by a single screw.

Remove ALL 5 screws, The whole assembly should now come out.

Peel back ribbon cable. NOTE control position

11. Step 9 -Separate the 2 circuit boards by pulling them apart. The PSU may have a charge on

the large capacitor – SO TAKE CARE!!

Insulating sheet, PSU - left, LCD controller -right

12. Step 10 – Repair PSU. Follow the guides shown by others on this site. The PSU is illustrated

below. I have listed the capacitors used and there values. You can check most of the

components with a multimeter. There are several fuses on the board, look at these first.

Secondly – diodes, thirdly, capacitors & resistors. Transistors, coils and voltage inverters last

of all.

Capacitors Required for PSU

Type Voltage micro farads Tolerance Quantity

KMG 400v 68 20% 1

KY 35v 220 20% 2

KY 6.3v 1000 20% 2

50v 22 20% 1

KNB1560 275vac 0.33 10% C>=0.1 uf 1

PSU model: FM-40A04-AAA

Manufacturer: Asian Power DevicesRe-assembly reverse order as above. NOTE controls at

foot of screen.

Whilst I'm not an electrical expert, you can email me for larger or original images at

bob.felste[email protected].

Good Luck!

Bob

PSU - Left, LCD controller - Right