Mitsubishi AM-3501R

tonyJP1 · Post by **tonyJP1** » Mon Oct 23, 2006 3:36 am

1. Device: AM-3501r
2. Type of device: Monitor
3. Year: 1988
4. UEI Remote model: 2 * URC-9910, URC-8011(no eeprom yet), URC-6131n(no eeprom yet)
5. Do you have a JP1 cable? yes JP1 "Simple" parallel, USB is in the mail
6. Still have original remote? nope
7. Checked the file section? yes
8. Checked Pronto file section (at R/C)? yes
9. Partially working setup code? no
10. Learning remote question? no

I got this monitor off ebay and it didn't have a remote. The closest luck I had was with the Harmony 520 remote code I downloaded. The model AM3501 came up as a TV but did not do any functions. The one button worked changed the input (I think it was the 3 key). I looked at the discrete codes for Mitsubishi but they look like the ones the Harmony had. I returned the Harmony and got a JP1 remote so I am unable to learn the button that worked.

Only thing I did find in a google search was: www.lintronic.dk/ircodes/MITSUBISHI/AM3501R.txt
I have no clue as to what if anything can be done with this information.

Capn Trips · Post by **Capn Trips** » Mon Oct 23, 2006 4:47 am

Those codes are Pronto Hex, which is readily decoded using the IRTool program. They are all Mitsubishi Protocol, Device 71.

There are a bunch of Mitsubishi TV upgrades upgrades in the file section that use this protocol/Device combination, so you should try one or several of them to see if they work. Short of THAT, you could try built-in UEI code TV/0150 that uses Mitsubishi/71.

The decodes of the file you linked to above are:

All are Mitsubishi protocol, Device 71

The OBC/EFC decodes are:
16=168/093
64=176/157
8=160/221
AUTO=184/029
BALANCE=171/099
BASS=187/035
BRIGHT=139/067
COLOR=155/003
CONT=131/195
EXT 1=128/189
EXT 2=136/061
EXT 3=144/125
H.POS=180/156
H.SIZE=164/220
MONO-CHROME=129/193
MUTE=178/159
ON GREEN=169/097
OVER/UNDER=167/226
POWER=130/191
RESET=186/031
S-VIDEO=153/001
SEPARATE=161/225
SET +=148/124
SET -=156/252
SHARPNESS=147/131
SUPERIMP=183/162
TINT=163/227
TREBLE=179/163
V.POS=188/028
V.SIZE=172/092
VOL ^=162/223
VOL v=170/095
VTR=152/253

Unfortunately (or puzzlingly) the few functions that cross over between this list and the upgrades I looked at in the file section have DIFFERENT OBC/EFCs. For example, the OBCs for Vol+/- and Mute are 034, 042, and 050, respectively, in the upgrade files in the file section. This may simply be due to the age of the set, and Mitsubishi may have shifted their standard OBC assignments at some point in the past.

In all of the upgrade files, NO OBC exceeds 127, whilst in the file you linked to above, EVERY OBC is higher than 127, so it's likely there is NO overlap between the built-in setup code and what your TV requires.

Regardless, it would appear that Mitsubishi/71 is likely the protocol/device combination you need, and once you get your cable, it's a simple matter to build/modify an upgrade to check them all out. Whichever set of OBCs work, good for you.

Again, pending the recipt of your cable, it can't hurt to try built-in upgrade TV/0151, although it appears unlikely that any functions will work, BUT you could do a simple test, sending EFCs (not OBCs) directly from the remote:

(1) Assign TV/0150 to your TV device button on the 9910;
(2) Make the TV device active - ensure that 0150 is displayed in the LCD display;
(3) Press Setup-1-9-1 (191 is the EFC corresponding to OBC 130, Power);
(4) Does your TV Power on or off? Then the code list you linked to is probably correct.

You can similarly test the other functions from the list. Just remember taht when you send a code using the remote via setup-x-x-x, you must use EFCs, not OBCs.

Good luck.

johnsfine · Post by **johnsfine** » Mon Oct 23, 2006 6:57 am

Capn Trips wrote: In all of the upgrade files, NO OBC exceeds 127, whilst in the file you linked to above, EVERY OBC is higher than 127, so it's likely there is NO overlap between the built-in setup code and what your TV requires.

One common way of encoding more device or unit information to a signal is to add some power of 2 to every OBC number. 128 is a power of 2.

OBC 2 is the standard power toggle for Mitsubishi:71
You said OBC 130 is the power toggle for this device.

I don't have time to check myself now against the info you quoted. But I suspect each of the matching functions will be 128 higher than in the existing upgrades.

Capn Trips · Post by **Capn Trips** » Mon Oct 23, 2006 9:50 am

Well, I took the liberty of comparing an Upgrade from the file section with the decodes from taht Pronto file for your 3501-R, and these are the functions whose OBCs differed by precisely 128. There is a remarkable coincidence, isn't there? Power, Vol =, Vol- and Mute correspond precisely, whilst the numbers seem to correspond (for the most part) with input selections.

Code: Select all

Function (upgrades)	OBC	Function (AM-3501R)	OBC
num: 1	             000	EXT 1	              128
num: 9	             001	MONO-CHROME           129
Power (toggle)        002	POWER                 130
num: 2                008	EXT 2                 136
num: 3                016	EXT 3                 144
num: 4                024	VTR                   152
Display               027	COLOR                 155
num: 5                032	8                     160
Volume Up             034	VOL ^                 162
num: 6                040	16                    168
Volume Down           042	VOL v                 170
num: 7                048	64                    176
Muting                050	MUTE                  178
num: 8                056	AUTO                  184
Input (cycle next)    058	RESET                 186

tonyJP1 · Post by **tonyJP1** » Tue Oct 24, 2006 1:51 am

I entered these codes in the Keymap-master v9.0 and then uploaded it to my 9910 and so far all the buttons i have tried work. Now i won't have to get up to turn my TV on and off. Thanks for the tip on the IR tool. I have downloaded it and will play with it later today.

www.lintronic.dk seems to have a lot of pronto hex codes that come up when i do a google search for txt files. Maybe a good place to look for codes.

After i make sure all the commands work i will upload it to the file section.

Thanks for all your help.

I hope i get the usb cable in soon as the self made simple interface is falling apart.