Yamaha AD8HR Service Manual page 34

AD8HR
Normally, the test No. is automatically set to d00 -> d01 -> d02 -> d06.
While in test program mode, select the test program No. with the GAIN encoder. You can then run that program by
pressing the [+48V] key.
PANEL KEYS
Turns [GAIN/control] clockwise
Turns [GAIN/control] counterclockwise
[+48V]
The matching 7 segment LED flashes when an item is selected. That LED lights up when the program ends.
[d00] Automatic test
[d01] LED test
[d02] SWITCH test
[d03] SUB test ............................................................ Not used. (Only for factory test.)
[d04] TRIM preset value (AUTO setting)
[d05] TRIM preset value (MANUAL setting)
[d06] HA-REMOTE 1/2 terminal test
[d07] CMG adjustment
[d08] ANALOG test
[d09] +48 TEST
[d10] Jitter measurement (48kHz)
[d11] Jitter measurement (96kHz)
[d12] MEMORY initialize ............................................ Execute if needed.
[d13] Display program version
[d14] System reset
Program can also be run if the menu No. is input from the HyperTerminal.
2. Test description
2-1. [d00] Auto test
Select test program No. [d00] on GAIN control and run the auto test by pressing [+48V] key when "00" flashes. You can
also enter the following characters from the terminal software:
AD8HR_DIAG>0
and run the test. (You don't need to press the Enter key.)
Test description is as follows:
[1] SRAM test
Automatically tests the address bus and data of bus the SRAM.
[2] FLASH test
Erases the Flash Memory sector and then performs W/R and makes comparison test.
[3] Backup battery voltage measurement
Measures with A/D and automatically tests the backup battery voltage.
[4] PLLP2 test
Performs W/R of Reg. (00, 0f, 10) on PLLP2 and makes comparison test, reads out and displays Reg. 12 (Ver.).
Checks A0..A4 (ABIO [1]-[5]) and D0..D15 (DB3V [0]-[15]). Reg.12 cannot be automatically tested since it is a
Read Only register.
34
FUNCTION
Selects direction of test No. sequence.
Selects reverse direction of Test No. sequence.
Runs the selected test No.


........... Execute if needed.






.......................... Not used. (Only for factory test.)



