Yamaha AW4416 Service Manual page 107

AW4416
Checking MIX CPU <-> HDR CPU ... NG
NG message → No response from HDR CPU
a) Problem with Mixer CPU or HDR CPU interrupts.
NG message → MSB LSB
b) Problem in the CS, Address bus, or Data bus at the Mixer CPU or HDR CPU.
To exit, press the
The cursor does not advance.
5-2-6 DSP5 Function Test (06 DSP5)
(1) Display (Test Screen Type D)
1) Test name → DIAGNOSTIC for DSP5
(2) Test Content
1) Checks the MAIN CPU / DSP5 interface.
2) Checks the DSP5 bus connection and serial I/O and parallel I/O connections.
(3) Judgment
1) Results area →
Exit-method area → EXIT: [ENTER / CANCEL]
2) If all tests are OK (if the overall result area displays the ALL TESTS ARE OK message):
Press ENTER to return to the test menu. An
in the menu.
3) If a check returns an NG:
1: Initialize all DSP5
NG message → TRANS ERROR
a) DSP5 initialization problem.
2: CPU Interface
NG message → IC505 ERR = 0/10000
a) Connection problem with IC509 Data bus, Address bus, R/W, or CS.
3: SIO Connection [DSP6 -> DSP5]
NG message → NG: IC301 SO[0] -> IC509 SIO[16]
a) IC301 SO[0] -> IC509 SIO[16] connection problem.
4: SIO Connection [DSP5 -> DSP6]
NG message → NG: IC505 SIO[40] -> IC301 SI[0]
a) IC505 SIO[40] -> IC301 SI[0] connection problem.
5: SIO Connection [DSP5 -> DSP5]
NG message
a) IC505 SIO[0] -> IC509 SIO[0] connection problem.
6: PIO Connection [DSP5 -> DSP5]
To exit, press
cursor does not advance.
78
0XXX XXXX
key. The program returns to the test menu screen, and an NG appears in the left column.
CANCEL
1: Initialize all DSP5
2: CPU Interface
IC505 ERR = 0/10000
IC509 ERR = 0/10000
3: SIO Connection [DSP6 -> DSP5]
4: SIO Connection [DSP5 -> DSP6]
5: SIO Connection [DSP5 -> DSP5]
6: PIO Connection [DSP6 <-> DSP5]
ALL TEST ARE OK!
... NG
IC509 ERR = 10000/10000
MSB 28 24
XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
... NG
... NG
... NG
→ NG: IC505 SIO[0] -> IC509 SIO[0]
... skip! ← not tested.
CANCEL . The program returns to the test menu screen, and an NG appears in the left column. The
NG message
... **
... **
... **
... **
... **
... **
... skip!
appears in the left column, and the cursor advances to the next test
... OK
... NG
20 16 12 8 LSB