Hook lf-30s to comcast cable box - Terk LeapFrog LF30S

Your tv. You will use your tv "source" to select which input to watch from. Everything goes to the TV. I have a surround sound amp that I run the sound FROM the TV that way if I want it loud I turn that on. It is the only exception.

I'm sure Comcast will be more then happy to direct you on phone step by step on how to do this... I'm sure you pay them every month.. don't you.
Best way I'd hook up is through the 5 RCA jacks monster cable.
3 for picture... green red and blue. then the 2 red and white for sound. match colors cable box TV.
if asking to connect direct cable to box.. your tv will pick up either some or nothing. you still need the Comcast cable box.

I assume this TV has no Audio In and Video In, from your Cable box there's an antenna out or cable out, connect that to your TV's antenna in, and make sure that your TV is tuned in to channel 3 or 4, try those two channels. You can only change channel thru your box, your TV channel is alway's on channel 3 or 4.

Use just the audio outs(l & r) from the box to the receiver,run video from cable box directly to tv.

Your dvd recorder only has rca, red white yellow inputs it wont allow you to record in HD, although you can play your comcast box any hd, regular digital through and record. Hook up the comcast box if HD through preferably HDMI if not get one from comcast. The HD box is the only box that allow HDMI, component and regular RCA and some RF out. This way you can play HD to your set but also record through RCA or RF again will not allow for HD record unless its TiVo. Hope this helps

Okay you TV is hooked to a comcast modem? or do you mean My tv is hooked to the comcast converter box? A no picture but sound you want to first check you cables also try hooking up a dvd to the tv and see if that picture comes on if not and you got no pic and sound this would mean the backlight on this tv is dead or you got a bad inverter not converter, inverter inside the tv. Meaning it needs the repairshop but try and hook up a dvd to it and see if you got picture if so you cable box might be the issue call comcast!

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first make sure the cable is running through you vcr then make sure you vcr is set to either channel 3 or one of the inputs

1st, see if you can get another cable box that offers component as well as RCA outputs on the back. Does your cable box have S Video out and does your toshiba have S Video in? If so, hook up the S Video from cable box to Toshiba. Then hook up R&W audio from Cable Box out to Toshiba In. Set the channel on the cable box to what you want to record. Set Toshiba to record channel 3 or 4, whichever your Toshiba is set on. The cable box controls the channel you are recording. You cannot set the recorder to the channel you want to record. It must be either 3 or 4. Try it. If everything else fails, you have to go cable from wall to cable in on cable box, cable out on cable box to cable in on Toshiba then either cable or RCA out on Toshiba to TV.

Had the problem. Turned out to be a defective hdmi port circuit board.

Having the same problem, Please help.