Yamaha AD8HR Service Manual page 36

AD8HR
AD8HR Diagnosis version Vx.xx [TOTAL TEST]
[Esc] : SHOW DIAGNOSIS MENU
0 : AUTOMATIC TEST
1 : LED TEST
2 : SWITCH TEST
3 : SUB TEST
4 : TRIM PRESET MEASUREMENT(AUTO)
5 : TRIM PRESET MEASUREMENT(MANUAL)
6 : COM A/B TEST
7 : CMG ADJUSTMENT
8 : ANALOG TEST
9 : +48V TEST
A : JITTER TEST (48kHz)
B : JITTER TEST (96kHz)
C : MEMORY INITIALIZE
ver[Enter] : SHOW SOFTWARE VERSION
date[Enter] : SHOW THE DATE OF MANUFACTURE
reset[Enter] : SYSTEM RESET
AD8HR_DIAG>
Select [d00] and run the auto test by pressing [+48V] key when "00" flashes. Program can also be run when "0" is input
from HyperTerminal.
During the testing, [d--] appears on the 7 segment LED. The status is also displayed as follows on the terminal software.
Check SRAM Data Bus
Check SRAM Address Bus OOOO OOOO OOOO OOO OK
:
:
When the test ends correctly, the following appears on the terminal software.
DIAG [00] AUTO CHECK RESULT
AD8HR_DIAG>
and "01" in [d01] flashes on the 7 segment LED.
When an error or problem occurs, the following error list appears on the terminal software.
DIAG[ 00] AUTO CHECK RESULT
ERROR LIST
[6] ATSC2
After [E00] flashes 3 times on the 7 segment LED, the display [d00] lights up.
Error list is as follows:
[1] SRAM (IC010, IC011)Data Bus
SRAM (IC010, IC011)Address Bus X X OO OOOO OOOO OOO
36
x.xx: version
OOOO OOOO OOOO OOOO OK
OK
NG
OOOO OOOO OOXX OOOO