iMac external display (EA232WMi) won't sleep

Lets get more surgical here.

Facts are: The external monitor stays in sleep mode on another Mac. It is unknowen if that mac has a Mavericks installed.

The Console report shows nothing unusual.

The Monitor configuration profile is still to be questioned (since it identifies the monitor as TV capable?

Recommended actions:

Use the PleaseSleep app http://www.dragonone.com/products/macosx/pleasesleep/

Alternatively -Verify, Repair or replace the existing ICC profile

To verify use the Colorsync Utility and publish the current monitor profile

To repair use the ColorSyc utility and perform the repair of the external Monitors ICC

Alternatively download and install new ICC profile

New ICC profile for TFT monitor http://www.tftcentral.co.uk/icc_profiles/nec_ea232wmi.icc