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Topic:
advent tv ht2751a
This thread has 6 replies. Displaying all posts.
Post 1 made on Monday September 25, 2006 at 04:37
tahikib
Lurking Member
Joined:
Posts:
September 2006
4
My new puppy has mistaking my Advent HT2751 TV remote for a chew toy. I can no longer activate Progressive Scan and Freeze. Is there anyway I can get HEX codes for those or Program a DirectTV controller to do that?

I have NoviiRemote Deluxe 4.0 for my PDA. There codebase does not work on my TV at all.
Post 2 made on Monday September 25, 2006 at 07:46
johnsfine
IR Expert
Joined:
Posts:
September 2002
5,159
Be careful with any experimentation with IR signals with that TV. Read this thread:
[Link: hifi-remote.com]
Some Advent TV's using the same IR code set as the HT2751A can be destroyed by ordinary signals from a related code set.

There is a JP1 upgrade for the HT2751A at
[Link: hifi-remote.com]
It uses the RC5 protocol, with device number 0. That is a very common code set for TV's. Philips and several other brands use basically the same code set. Power, digits, vol, CH, and other basic functions are the same across all the brands and models including Advent. Advanced functions differ across brands and models, including one of the PIP functions for Philips that is the destructive function for Advent.

This code set (including the destructive function) is the OneForAll setup code TV/0054. You can see a partial list of the many brands using it under 0054 at
[Link: hifi-remote.com]

In that JP1 upgrade I mentioned, the Freeze command is listed as OBC 36. I assume you want that in Pronto Hex, which is
0000 0073 0000 000B 0020 0020 0040 0020 0020 0020 0020 0020 0020 0020 0020 0020 0020 0040 0040 0020 0020 0040 0040 0020 0020 0CC5

I don't see a "Progressive Scan" function there. The "scan" function is OBC 25, Pronto Hex:
0000 0073 0000 000C 0020 0020 0040 0020 0020 0020 0020 0020 0020 0020 0020 0020 0020 0020 0020 0040 0020 0020 0040 0020 0020 0040 0020 0CA4

The full list of OBC numbers from that upgrade is pasted in below. My MakeHex program can be used to convert those to Pronto Hex

0 --- 0
1 --- 1
2 --- 2
3 --- 3
4 --- 4
5 --- 5
6 --- 6
7 --- 7
8 --- 8
9 --- 9
10 -- +100
12 -- power
13 -- mute
15 -- display
16 -- vol up
17 -- vol down
20 -- closed caption
21 -- menu
24 -- hd zoom
25 -- scan
26 -- demo
27 -- favorite
32 -- channel up
33 -- channel down
34 -- last/prev ch
36 -- freeze
38 -- sleep
43 -- picture
45 -- stereo
56 -- tv/vcr
63 -- guide

Last edited by johnsfine on September 26, 2006 08:53.
OP | Post 3 made on Tuesday September 26, 2006 at 04:04
tahikib
Lurking Member
Joined:
Posts:
September 2006
4
I have Tried those HEX codes. They both seem to be sleep on my TV.

With that Advent_HT2751A_TV.rmdu what do I do with that.

I am sorry for the pain. but I am very very new to this.
Post 4 made on Tuesday September 26, 2006 at 08:59
johnsfine
IR Expert
Joined:
Posts:
September 2002
5,159
On September 26, 2006 at 04:04, tahikib said...
I have Tried those HEX codes. They both seem to be sleep
on my TV.

Sorry. I made a mistake in creating those Pronto Hex strings.

Today I edited my post above and put in the correct Pronto Hex strings.

I'm surprised the wrong ones did anything at all. They had the right command numbers with the wrong device number. Most devices just ignore such signals. Those Advent TV's are strange!

With that Advent_HT2751A_TV.rmdu what do I do with that.

Nothing. All the data you might want from that file is the list of OBC numbers I extracted and posted Yesterday.

To use that list, you need the MakeHex program
[Link: john.fine.home.comcast.net]
To use MakeHex, edit rc5.irp to change the device line to say
Device=0
Then drag/drop rc5.irp onto MakeHex.exe, which will create RC5.hex
Edit RC5.hex to pull out individual samples of Pronto Hex based on the list in post 2.

Do not try any of the Pronto Hex codes whose function numbers aren't in that list. I think one of those codes will destroy the TV.
OP | Post 5 made on Thursday September 28, 2006 at 05:25
tahikib
Lurking Member
Joined:
Posts:
September 2006
4
Thank you again. You have been helpful. I will try this.
OP | Post 6 made on Friday September 29, 2006 at 05:29
tahikib
Lurking Member
Joined:
Posts:
September 2006
4
A lot of it works. Thank you. I can't find a progessive scan function and I am afriad to fry my tv. Thank You for all the help.
Post 7 made on Thursday November 23, 2006 at 14:53
Larry Anderson
Founding Member
Joined:
Posts:
September 2001
9
Since there are no discrete power commands or input commands, can I assume that they don't exist for this product?


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