Yamaha DME4io-ES Service Manual page 64

DME4io-ES/DME8i-ES/DME8o-ES
Example of Executing Screen
*** 11. REMOTE
RS232C OK.
SET RS422 MODE OK? [ENTER]
RS422 OK.
JIGU RELEASE OK? [ENTER]
JIGU RELEASE OK.
EXIT:[ENTER]
q When the test is started, looping back check will be performed through the RS232C and the jig. When the "OK." is
displayed, change the DIP SWITCH to the RS422 and press the [ENTER] key of the PC.
RS232C
Left
D
RS422
w Looping back check will be performed through the RS422 and the jig. When the "OK" is displayed, remove the test
jig from the REMOTE terminal and press the [ENTER] key of the PC.
e "OK." will be displayed if the data are not looped back. Press the [ENTER] key of the PC to complete the test.
r If an error occurs on the way, the following message will be displayed and the test will be fi nished.
Messages
• When disabled communication is detected:
• In case of an internal short-circuit:
Troubleshooting
Check the signals connected to the following terminals in case of NG.
TxD0 (191Pin), RxD0 (198Pin) of CPU (CPU circuit board: IC002)
3-12. ETHER SOUND Test (NO. 13)
Contents: Audio data is looped back by the NAI48-ES as a jig and judgment is made automatically. Also,
transmission/reception of serial data between CPU-ES is automatically judged by looping back.
Preparations: Depending on the kind of test to be executed, connect the NAI48-ES as a jig with the DME Satellite to
be inspected as follows.
Connect the AES/EBU connector 1 and AES/EBU connector 2 of the NAI48-ES with a Dsub25P cable
for loopbacking.
• Connection in case of IN connector test
Connect the EtherSound [IN] connector of the DME Satellite to be inspected and the [OUT] connector of the NAI48-
ES as a jig with a LAN straight cable. Also, connect the [IN] connector of the NAI48-ES connector to PC, and [Ethernet]
connector of the DME Satellite to PC through a hub. Input 96 kHz to the Word Clock connector of the NAI48-ES from
an external device in case of 96 kHz test or input 48 kHz in case of 48 kHz test.
64
***
Right
D: Down
NG: LOOPBACK ERROR.
NG: SIGNAL SHORT.