Yamaha n8 Service Manual page 78

n8/n12
2-11-2. Test contents
The SSP1 queries the DICEII on how many nodes are detected.
If three nodes (two connector and itself) are detected, the
connection check is judged as OK.
2-11-3. Execution of test from PC
(1) Connect two IEEE1394 hubs to the [DAW I/O] connector.
(Refer to "Wiring diagram for service test" on page 65.)
(2) Turn on the power of the hubs.
(3) Transmits the MIDI command (A0 4C 00) to execute the
test.
(4) MIDI command (A0 4C 02) will be received if the test
result is OK and MIDI command (A0 4C 03) will be
received if the test result is NG.
• Example of executing screen
* Refer to "3. List of test items" for details. (Page 80)
2-12. AD/DA through connection
2-12-1. Outline
Sets up connection mode that connects the AD and DA
directly (AD/DA through connection) in the SSP1 for audio
characteristics test to check if there is no abnormality in the
audio line between the AD/DA and SSP1.
2-12-2. Test contents
During AD/DA through connection mode, the connection is
as follows. There are three types of connection modes and
modes can be switched by transmitting MIDI command from
the personal computer. Regarding "2) Input test mode" and "3)
Output test mode", On/Off of each channel can be switched
by transmitting MIDI command from the personal computer.
(Default setting is off.)
Refer to "3. List of test items" for details of commands.
(Page 80)
78
LEDs of A.IN in INPUT SELECT indicate which connection
mode is selected.
1) Normal mode: A.IN LED of CH 1 lights up
2) Input test mode: A.IN LED of CH 2 lights up
3) Output test mode: A.IN LED of CH 3 lights up
1) Normal mode connection
2TRIN-L
2TRIN-R
Mono CH1 PAD
Mono CH2 PAD
Mono CH3 PAD
( Hi-Z )
Mono CH4 PAD
Mono CH5
PAD
Mono CH6 PAD
Mono CH7
PAD
n12
ONLY
Mono CH8 Hi-Z PAD
TALKBACK
ST CH9 (5)
ST CH10 (6)
ST CH11 (7)
ST CH12 (8)
SSPI DSP connection
2) Input test mode connection
2TRIN-L ON/OFF
2TRIN-R
ON/OFF
Mono CH1 PAD ON/OFF
Mono CH2 PAD ON/OFF
Mono CH3
PAD ON/OFF
( Hi-Z )
Mono CH4 PAD ON/OFF
Mono CH5
PAD ON/OFF
Mono CH6
PAD ON/OFF
Mono CH7
PAD ON/OFF
n12
ONLY
Mono CH8 Hi-Z PAD ON/OFF
TALKBACK
ST CH9 (5)
ON/OFF
ST CH10 (6)
ON/OFF
ST CH11 (7)
ON/OFF
ST CH12 (8)
ON/OFF
SSPI DSP connection
3) Output test mode connection
2TRIN-L
2TRIN-R
Mono CH1 PAD ON/OFF
Mono CH2 PAD ON/OFF
Mono CH3
Mono CH4
Mono CH5
Mono CH6
Mono CH7
n12
ONLY
Mono CH8
TALKBACK
ST CH9 (5)
ST CH10 (6)
ST CH11 (7)
ST CH12 (8)
SSPI DSP connection
2-12-3. Execution of test from PC
Switches AD/DA through connection mode by transmitting
MIDI command.
* Refer to "3. List of test items" for details. (Page 80)
ST OUT-L (Unbal)
ST OUT-R (Unbal)
ST OUT-L (Bal)
ST OUT-R (Bal)
CR OUT A-L
CR OUT A-R
CR OUT B-L
CR OUT B-R
CR OUT C-L
CR OUT C-R
AUX OUT L
AUX OUT R
CR PHONES-L
CR PHONES-R
AUX PHONES-L
AUX PHONES-R
ST OUT-L (Unbal)
ST OUT-R (Unbal)
ST OUT-L (Bal)
ST OUT-R (Bal)
CR OUT A-L
CR OUT A-R
CR OUT B-L
CR OUT B-R
CR OUT C-L
CR OUT C-R
AUX OUT L
AUX OUT R
CR PHONES-L
CR PHONES-R
AUX PHONES-L
AUX PHONES-R
ST OUT-L (Unbal)
ST OUT-R (Unbal)
ST OUT-L (Bal)
ST OUT-R (Bal)
CR OUT A-L
CR OUT A-R
CR OUT B-L
CR OUT B-R
CR OUT C-L
CR OUT C-R
AUX OUT L
AUX OUT R
CR PHONES-L
CR PHONES-R
AUX PHONES-L
AUX PHONES-R