Lcd Test; Panel Led Test; Panel Sw Test - Yamaha 01v 96 Service Manual

Example of execution screen
--- WORD CLOCK ---
OK OUT->IN
OK PLL (DIR2,DBL)
NG PLL UnLock
Disconnect WORD CLOCK cable
NG:DBL_PLL_48K_COUNT=220
EXIT ([DEC] Key->[ENTER] Key)

1-21. LCD test

Contents: Display the entire LCD screen in black
and white alternatively and visually check.
Example of execution screen
--- LCD ---
OK Turn on LCD(white<-->black)
[ENTER] key to Start, [DEC] key to Stop
OK NG
EXIT ([DEC] Key->[ENTER] Key)
Check if the entire screen is displayed in black and
white respectively.
When the entire screen is displayed in black, check
for any dot flaws.
Check if the screen contrast changes when the contrast
volume is changed.
If the above is confirmed, press the [DEC] key and
select OK/NG.

1-22. PANEL LED test

Contents: Visually check that the LEDs on the panel
light in the specified order.
Example of execution screen
--- PANEL LED ---
OK 1 CH1..CH16 PEAK-SIGNAL
OK 2 FADER MODE..LAYER
OK 3 CH1..CH16, STEREO, ST IN1/3-2/4 SEL-SOLO-ON
OK 4 SOLO..SELECTD CHANNEL..ST IN
OK 5 USER DEFINED KEYS
OK 6 STEREO METER
OK 7 ALL LED ON
[ENTER] key to Start
OK NG
EXIT ([DEC] Key->[ENTER] Key)
See LED lighting order Fig. 1 and 2 in "2. Supplement"
for the lighting order.
1-23. PANEL LED test
Contents: 1. Check that the brightness of all of the
If this message is displayed,
disconnect the BNC cable
connected to the WORD
CLOCK IN and press the
[ENTER] key.
Example of execution screen
OK 1 BRIGHTNESS
OK 2 RED LEDs
OK 3 GREEN LEDs
OK 4 ORANGE LEDs
[ENTER] key to Start
OK
EXIT ([DEC] Key->[ENTER] Key)

1-24. PANEL SW test

Contents:
Good or bad
decision
Example of execution screen
NG GROUP1
GROUP2
EXIT ([DEC] Key->[ENTER] Key)
1) See SW operation Fig. 1 and 2 in "2. Supplement"
2) When the check starts, the LCD display changes
1-26. FADER Move test
Contents:
Good or bad
decision
LEDs on the panel light in four grades.
2. Light the red LEDs only and check that
no other colors are present.
3. Light the green LEDs only and check that
no other colors are present.
4. Light the orange LEDs only and check
that no other colors are present.
--- PANEL ALL LED ---
NG
Check that all of the switches on the panel
respond when pressed in the specified
order (automatic judgement).
--- PNL SW ---
for operation order.
to the LCD display Fig. 1 in "2. Supplement." This
screen can be skipped if the [DEC] key is pressed.
For this reason, the [DEC] key is not included in
the operation order.
• At first, manually move the FADER all
the way up and all the way down
according to instructions on the
execution screen. During this time, the
positions are checked and whether or not
the values are correct is automatically
judged using the built-in A/D.
• Move all of the FADERs all the way up
and all the way down and the positions
are checked and whether or not the
values are correct is automatically
judged using the built-in A/D.
01V96
Good or bad
decision
93