This model doesn’t have an internal power supply, instead power is provided from a 12 volt, 3 amp DC power supply. Removing the cover provides access to the hard drive and mainboard of the box. Once all the screws are out pull back and lift up on the cover to remove it. There are 3 screws on the back of the box and 1 on each side that must be removed to remove the cover. Most security bit sets include a size 10 tamper torx bit since it’s fairly common, most Cisco / Scientific Atlanta boxes use this same size. The box is held together using tamper resistant torx screws (size T10). Opening up the cable box is pretty simple. Having a good efficiency rating means the adapter doesn’t waste much electricity when it’s plugged into a wall socket but not power a device. The power adapter has an efficiency rating of level V which is currently the most efficient rating on the scale.
Highlight power save mode and press select to toggle the sleep mode on, or off. To enable or disable sleep mode press the settings button on the remote and access the timers tab. When enabled sleep mode activates after 4 hours of inactivity. In sleep mode power usage drops down to about 18 watts. I was surprised to see that this cable box uses such a low amount of power. Using a watts up power meter I measured an actual draw of about 20 watts while the DVR was powered up. The maximum power output from the adapter is 36 watts (12V * 3A). Power for the DVR is provided by an external power brick manufactured by LiteOn, part number 4035345. The Explorer 8742HDC is an Energy Star qualified STB.
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I wasn’t able to locate a users manual or even anything that mentioned the 8742 on Cisco’s website. I did a quick search of Samsung’s website and I couldn’t find any product info for the SMT-H3270, or SMT-H3272 anymore so I believe they may have been discontinued but I haven’t been able to confirm this.Ĭurrently there is very little information available regarding the 8742HDC cable box.
When the Time Warner technician arrived I expected he would replace the box with an identical model but instead he left me a Cisco 8742HDC box. My Samung cable box recently stopped working and had to be replaced.