diff --git a/manuals/ta_iom.md b/manuals/ta_iom.md
deleted file mode 100644
index 7d6d9c7..0000000
--- a/manuals/ta_iom.md
+++ /dev/null
@@ -1,85 +0,0 @@
-# Techage/Beduino  I/O Module
-
-I/O modules support the following functions:
-
-###  event
-
-Every signal that is sent to an I/O module triggers an event on the controller.
-Events can be queried using the `event()` function.
-If the function returns the value `1`, one or more signals have been received.
-Calling `event()` resets the event flag.
-
-```c
-event()
-```
-
-### read
-
-Read a value from a remote techage block.
-
-- *port* is the I/O module port number
-- *cmnd* is the command, like `IO_STATE` (see example code  "ta_cmnd.c")
-
-```c
-read(port, cmnd)
-```
-
-### send_cmnd
-
-Send a command to a techage block (see [commands](https://github.com/joe7575/beduino/blob/main/BEPs/bep-005_ta_cmnd.md)).
-
-- *port* is the I/O module port number
-- *topic* is a number from the list of [Beduino commands](https://github.com/joe7575/beduino/blob/main/BEPs/bep-005_ta_cmnd.md)
-- *payload* is an array or a string with additional information, depending on the command. If no additional commands are required, "" can be used.
-
-```c
-send_cmnd(port, topic, payload)
-```
-
-### request_data
-
-Request information from a techage block (see [commands](https://github.com/joe7575/beduino/blob/main/BEPs/bep-005_ta_cmnd.md)).
-
-- *port* is the I/O module port number
-- *topic* is a number from the list of [Beduino commands](https://github.com/joe7575/beduino/blob/main/BEPs/bep-005_ta_cmnd.md)
-- *payload* is an array or a string with additional information, depending on the command. If no additional commands are required, "" can be used.
-- *resp* is an array for the response data. The array must be defined large enough to hold the response data.
-
-```c
-request_data(port, topic, payload, resp)
-```
-
-## Functions for TA4 Display and TA4 Display XL
-
-###  clear_screen
-
-Clear the display.
-
-- *port* is the I/O module port number
-
-```c
-clear_screen(port)
-```
-
-### append_line
-
-Add a new line to the display.
-- *port* is the I/O module port number
-- *text* is the text for one line
-
-```c
-append_line(port, text)
-```
-
-
-### write_line
-
-Overwrite a text line with the given string.
-
-- *port* is the I/O module port number
-- *row* ist the display line/row (1-5)
-- *text* is the text for one line
-
-```c
-write_line(port, row, text)
-```
diff --git a/move_controller/soundblock.lua b/move_controller/soundblock.lua
index bafcbb2..7743f0f 100644
--- a/move_controller/soundblock.lua
+++ b/move_controller/soundblock.lua
@@ -116,8 +116,9 @@ techage.register_node({"techage:ta3_soundblock"}, {
 		end
 	end,
 	on_beduino_receive_cmnd = function(pos, src, topic, payload)
+		print("ta3_soundblock", topic, payload[1], payload[2])
 		if topic == 1 then
-			if payload[1] == 0 then
+			if payload[1] == 1 then
 				play_predefined_sound(pos)
 				return 0
 			end