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Model A1225 / Early 2009 / 2.66, 2.93, or 3.06 GHz Core 2 Duo processor

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iMac dead. used as a monitor lcd panel

Hello , First sorry for my English . I use google translator to help me :(

I have everything you need (or so I think) to use my imac lcd panel (panel LM240WU2 ( SL) ( B4 ) ) as a monitor for other pc

http://i62.tinypic.com/112e876.jpg

http://i61.tinypic.com/2mwxct2.jpg

also I connect the cable from the inverter to the lcd

this http://i59.tinypic.com/f10dts.jpg to http://i57.tinypic.com/f2itxd.jpg

Connect the power cord from the iMac ( white ) energy to the panel. and I connect the power adapter to the board vga 12V 2A

but does not work , connect via a PC to give vga video signal and does not work

do I wrong ?

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Help please :(

Contesta esta pregunta Yo también tengo este problema

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Doc, yes it all is connected properly. You did not tell us if you have power on the LCD driver and if the power LED (on the menu bar)comes on. You need a minimum of 12 Volt on that. Also, you hopefully ensured with the person you bought the inverter/LCD driver board from, that it works for your panel. They have to be very specifically wired for your LCD. Just to verify, you should also tell us how you connect the LCD driver board to the PC, and what type of PC you are using. You must use a VGA cable to connect from your computers video card to the LCD driver board

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You need an inverter mate

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See https://pbase.com/brucemac/2019octdispla... for my successful conversion from a 24” iMac (Early 2009) to a monitor. The inverter board is built into this display, but you’ll need 24Vdc to drive it - Thus, you’ll need a power supply. (unless you can figure out how to make the original PSU work…)

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I'd very like to know where did you manage to find your 24Vdc PSU unit ? can't find one of those.. i've all the board and things ready in a box for years now !

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I found mine on ebay. Search for "5V/12V/24V Universal LCD/LED Power Supply Power Board for LCD " on your favorite search engine, and you'll find plenty.

I bought the light colored one, as you see, though there are several that are dark/black.

This is the one I purchased:

https://www.ebay.com/itm/5V-12V-24V-Univ...

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The original Apple Delta ADP-250AF B Power Supply can be used with the aftermarket video board.

To drive the backlight, all that is needed is the 24V from the original supply, and the gray & white wire from the aftermarket video board. The gray & white are properly wired in the connector for the backlight; the other end of the 24V connector (the 4 red/4 black) are not used, where the original cable from the PS to the backlight supplies the 24v. Pins 1-5 are 24V, 6-10 is GND, and 11 is P_DIM, 12 is BL_ON (Back Light ON). Thus, the gray & white can be spliced into the factory harness - White to 12 and Gray to 13. (See my pics on the link posted above for detailed pinouts)

When power is plugged into the Delta PS, 24V is always on, as is 12V on pin 5 of the large connector. Thus, the PS can drive both the video card and backlight. The original MB enables other pins such as the 12V on 9, 10, 11 on the large conn (3 to gnd), they are not needed.

I haven't tested this first hand, I expect it would work.

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This post contains the pin-outs of the Delta PS, and what pins are shorted to enable the 3 12V pins on the large connector:

Power Supply pin (voltage, start other?))

I tested the outputs, and indeed, they work as outlined.

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how do you power your backlight for you lcd ? Because i'm working on a Modification, and so far, i've found that you'll need to bring 24v to the backlight (wich seems connected to your old mac PSU), but if i'm correct, the 24v is powered only after Power On ;)...

Or maybe your board arrived with an AC adaptater wich does at the same time 24 / 12 V ?

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That voltage is usually supplied by a boost converter and the LED driver on those boards.

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I have the same problem, does not fit the light lcd, even connecting it to the PSU Mac .

Sure there something I'm not doing well, but is not it ...

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Doc estará eternamente agradecido.
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