Sanyo LCD-19XR9DA(C) Service Manual page 15

Baud rate：9600bps
Data bits: 8 bits
Parity: None
Stop bit: 1 bit
Detailed setup procedures as follows:
(1) Press the [FUNC] key, [5] key and [SET] key.
Select Function : 5 (0-E)
Config Edit
（2）Refer RS232 communication setup to Fig. 12
Fig. 12 RS232 communication setup