Yamaha A5000 Service Manual page 20

A5000/A4000
Measuring instruments:
Jigs:
A. TEST ENTRY
The test program can be entered in either of the two ways.
1.Turn on the A5000/A4000 power switch while pressing the [F1]
and the [COMMAND] switches.
2.After turning on the A5000/A4000 power switch, wait a few
miniutes and while simultaneously pressing the [F1] and the [COM-
MAND] switches, press the [F6] switch.
Displayed Test Version
A5000 TEST PROGRAM VER x.xx
MST : V x.xx SLV : x.xx BOOT : x x x x xx
TESTMODE = MANUAL
00 : MIDI
DESTRUCTIVE!
ENC1 ENC2 ENC3
If the [ENC4] AUTO switch is pressed, the auto test can be started.
If the [ENC5] MANUAL switch is pressed, the manual test can be
started.
When the test mode is finished, execute the EXIT or stop the power
switch.
< Attention to the destroyed data >
According to the item 04, 07, 08, 09, 50, 53, 54, there's a danger to
destroy and initialize the media (Memory and Disk) data placed in
the test. Save the back-up and execute.
EEPROM to be tested at the item 04 is memorized the institution of
the Master body but this cannnot be saved back-up to the media.If
the test is normally finished, the institution is kept. But if NG is on,
the institution isn't guaranted.
These test are displayed the "DESTRUCTIVE!" at the selected screen.
20
oscilloscope, level meter(with a JIS-C
filter), distortion meter, AD converter,
oscillator
MIDI cable, optional extension board
Displayed Program Version
D i s p l a y e d
Mode
Item Test
AUTO MANUAL
ENC4 ENC5
Displayed Attention and
Excutive button
B. PROCEEDING THROUGH THE TEST
MANUAL MODE
If the test mode is entered, the following screen is displayed.
0 0 : M I D I
The test is proceeded to use the [ENC4], [ENC5], [COMMAND]
and [ASSIGNABLE].
If the [ASSIGNABLE] switch is pushed, the next test (of the se-
lected present test) is selected and the item test is displayed.
If the [COMMAND] switch is pushed, the last test (of the selected
present test) is selected and the item test is displayed.
(If the [ENC1] switch is turned, the item test is selected.)
If the [ENC5] GO switch is pushed, the selected present test is
executed.
While executing, the next letters is displayed.
N O W E X C U T I N G . . .
If the test showed the [ENC5] STOP while the execution of the test,
the test is stopped.
If the [ENC4] AUTO is pushed, the test is automatically executed in
order of the test number.
If the test showed [ENC5] STOP while the execution of the test is
pushed, the test is stopped.
If the error is happened, the error is displayed and the test is stopped.
AUTO MODE
If the auto test is executed at the [ENC4] AUTO the test is executed
in order of the number.
If the test showed the [ENC5] STOP while the execution of the test
is pushed, the test is stopped.
If the error is happened, the error is displayed and the test is stopped.
If the [ENC5] GO switch is pushed, only the stopped item test is
executed.
Proceeding through the test when the NG is judged
According to each of the test, if the NG is judged, proceed the follow-
ing tests.
If the [ENC5] switch is pushed, the selected present test is executed
again.
If the [ASSIGNABLE] switch is pushed, the next test (of the se-
lected present test) is selected and the item test is displayed.
If the [COMMAND] switch is pushed, the last test (of the selected
presetnt test) is selected and the item test is displayed.
AUTO MANUAL