jiangsu cable tv remote

mdavej · Post by **mdavej** » Wed Jun 17, 2015 8:20 am

chuliu wrote:I am assuming the code.s3c80=xxx code has to do with the mid-frame burst.

That's the assembler that defines the entire protocol, not just one aspect of it. To understand it, you have to learn s3c80 assembler.

chuliu · Post by **chuliu** » Thu Feb 23, 2017 10:44 pm

hi I encountered a similar remote with mid-framebust and the reapeting frame is a lead in and one on, which is very similar to jiangsu.

It is a ocn es200 stb (shanghai ocn cable and model is longjing tech es200)

I uploaded the ict to diagnosis area here:
https://www.hifi-remote.com/forums/dload ... e_id=14435

I noticed that not only one and zero defined in jiangsu are the same as those in ocn, device bytes of 3 and command byte of 2 are the same. Also, the starting bit of midframe burst is also the same after bit 24.

Can someone take a look at why this rmdu doesn't work?

https://www.hifi-remote.com/forums/dload ... e_id=14436
It is modified from jiangsu protocol, so one will need to add jiangsu protocol to protocol.ini.

Before I tried to modify the jiangsu protocol, I actually used protocol builder to build a protocol with mid frame burst equaled to lead in frame. This is done with

BITS W7.3
JP $0146

But the resulting signal only has 1 signal (which is the same as the original learn) and no repeating signal, unlike the original signal with repeating (lead in, one on, silence)

I think that's why it doesn't work.

The modified jiangsu rmdu is really close imo, just the lead out silence is slightly different.

I don't know why it doesn't work.

Thanks,

3FG · Post by **3FG** » Fri Feb 24, 2017 12:05 am

Basically it looks like it shoots the correct signals. However, the exact durations may be slightly wrong.

I'd try changing

Code: Select all

 43 8B 32 8B 16 CF 44 08 08 01 11 02 12 01 11 00 FA D2 DC 07 1C 03 70 FF FF FF 19 77 77 F6 01 46 F6 01 0A 7B 01 AF E6 20 06 E6 21 E0 E6 28 C0 57 76 46 29 01 8D 01 46

Code: Select all

43 8B 32 8B 16 CF 44 08 08 01 11 02 12 01 11 00 FA D2 DC 06 FE 03 57 FF FF FF 19 77 77 F6 01 46 F6 01 0A 7B 01 AF E6 20 06 E6 21 E0 E6 28 C0 57 76 46 29 01 8D 01 46

This will shorten up the durations of the lead in and mid frame burst.

chuliu · Post by **chuliu** » Fri Feb 24, 2017 12:44 am

https://drive.google.com/open?id=0B8aHz ... XhONThpZnM

https://drive.google.com/open?id=0B8aHz ... Vp1UVBzdHM

The above is the wave form of power button of the original remote.
The below one is that of the upgrade file modified from jiangsu protocol.
I know that the lead out silence and the silence after the first signal segment are different. Do they make the signal not work?

Or should I consider if the stb is hung or ir blaster not set up correctly?
It is a slingbox 500 so I doubt the ir blaster is not set up as 500 has built in ir emitters.

chuliu · Post by **chuliu** » Fri Feb 24, 2017 8:01 am

chuliu wrote:hi I encountered a similar remote with mid-framebust and the reapeting frame is a lead in and one on, which is very similar to jiangsu.

It is a ocn es200 stb (shanghai ocn cable and model is longjing tech es200)

I uploaded the ict to diagnosis area here:
https://www.hifi-remote.com/forums/dload ... e_id=14435

I noticed that not only one and zero defined in jiangsu are the same as those in ocn, device bytes of 3 and command byte of 2 are the same. Also, the starting bit of midframe burst is also the same after bit 24.

Can someone take a look at why this rmdu doesn't work?

https://www.hifi-remote.com/forums/dload ... e_id=14436
It is modified from jiangsu protocol, so one will need to add jiangsu protocol to protocol.ini.

Before I tried to modify the jiangsu protocol, I actually used protocol builder to build a protocol with mid frame burst equaled to lead in frame. This is done with

BITS W7.3
JP $0146

But the resulting signal only has 1 signal (which is the same as the original learn) and no repeating signal, unlike the original signal with repeating (lead in, one on, silence)

I think that's why it doesn't work.

The modified jiangsu rmdu is really close imo, just the lead out silence is slightly different.

I don't know why it doesn't work.

Thanks,

forgot to add the button names:

power
service
mute
up
down
left
right
back
info
ok
tv
red
green
yellow
blue
1
2
3
4
5
6
7
8
9
0
*
#

according to ict file sequence.

Post by **The Robman** » Fri Feb 24, 2017 11:29 am

chuliu wrote:forgot to add the button names:

I just added the button names to the file and replaced it.

chuliu · Post by **chuliu** » Sun Feb 26, 2017 7:36 am

For some reason, my friend to whom the ocn stb and sling box 500 belong, reported that the rmdu I posted above actually worked. Maybe he restarted the stb or something. Anyway, thanks.