Yamaha DM 1000, Service Manual

Page: 143 / 307

DM1000/MB1000/SP1000
143
This executes the MB1000 test program.
1. Preparation
1) Connect the D-sub 15-pin cable to the [METER] terminal on the rear of the DM1000.
2) If there is no DM1000, 16.5 V power with an external power supply to the +12V terminal and the ground
terminal.
Note: If a stand-alone inspection is carried out with the unit installed on the DM1000 main unit, the Loopback test
generates an error.
2. How to start the inspection program
1) While holding down the [PEAK HOLD] switch, the [33-48] switch, and the [MASTER] switch, switch on the power. The
unit goes into stand-alone inspection mode and the switch inspection starts.
2) When you press the [PEAK HOLD] switch, the [33-48] switch, and the [MASTER] switch again, LED Inspection 1
starts. (To inspect the switches again, it is necessary to switch the power off, then on again.)
3) From this point on, pressing the [REMOTE1] switch or the [REMOTE2] switch changes the inspection item.
4) During LED Inspections 6 and 7, pressing the [1-16] switch or the [17-32] switch changes the LED illumination time.
(Each time you press the [1-16] switch, the illumination speeds up; each time you press the [17-32] switch, the illumination
slows down.)
3. Inspection Items
3-1. Switch Inspection
The operation of each switch is judged by whether the LED lights up or goes out when the switch is pressed.
3-2. LED Inspection
Inspection No. Inspection Item
1 Communications loopback test Normal: H10=‘0’, Error: H10=‘E’
REMOTE1
↓↑
REMOTE2
2 LED all light
3 Green LED all light
4 Orange LED all light
5 Red LED all light
6 Channel bar graph lit
(LED lighting order: CH1 Bottom
→
Top.. CH16 Bottom
→
Top, OUT BUS 1 Bottom
→
Top..
OUT BUS 2 Bottom
→
Top
7 Other lit
(INPUT METERING POSITION PRE EQ
→
PRE FADER
→
POST FADER
→
OUTPUT METERING POSITION PRE EQ
→
PRE FADER
→
POST FADER
→
1-16_L
→
17-32_L
→
33-48_L
→
AUX/BUS1-8_L
→
1-16_M
→
17-32_M
→
33-48_M
→
AUX/BUS1-8_M
→
1-16_R
→
17-32_R
→
33-48_R
→
AUX/BUS1-8_R
→
1-16 SW
→
17-32 SW
→
33-48 SW
→
PEAK HOLD SW
→
REMOTE1 SW
→
REMOTE2 SW
→
MASTER SW)
8 Time codes H10
→
H1
→
M10
→
M1
→
S10
→
S1
→
F10
→
F1 light up repeatedly
(Lighting order: 0
→
1.. 9
→
. (dot))
1-16
17-32
33-48
PEAK HOLD
REMOTE1
REMOTE2
MASTER
1-16 light up/go out
17-32 light up/go out
33-48 LED
light up/go out
PEAK HOLD LED light up/go out
REMOTE1 LED
light up/go out
REMOTE2 LED light up/go out
MASTER LED
light up/go out
Switch Action
MB1000 TEST PROGRAM