Control Unit (Manipulator Style) - Pioneer MEP-7000 Service Manual

5

[4] CONTROL UNIT (Manipulator Style)

In this section, only items specific to Manipulator Style are described.
With regard to the problems common to Normal Style, see "[3] CONTROL UNIT (Normal Style)".
[4-1] The control unit has not started (no LCD, LEDs, nor OEL, light).
No. Points to be checked
1 -
2 Cables
3 NJACK ASSY
See Diagnosis No. 3 and after for the description of Normal Style mode.
[4-2] After startup, operation stops at the point at which the PRO DJ logo is displayed.*4
No. Points to be checked
If operation stops at the point at which the PRO DJ logo*4 is displayed in Manipulator Style mode,
communication between the control unit and the PC via the USB connectors has failed.
1 -
2 -
3 NMAIN ASSY
4 NMAIN ASSY
NMAIN ASSY/
5
NJACK ASSY
6 NMAIN ASSY
5
6
Waveform Items for check
Has the updating of the firmware
for the control unit failed?
-
Check that the USB cables and
USB auxiliary power cable are
-
securely connected.
Check the power (V+BUS5D) to
the NJACK Assy.
-
Waveform Items for check
Check if the driver has been
-
installed in the PC.
Check the status of the USB
controller (IC706) with the auto
149
device diagnosis or the status
LEDs.
Check that the clock signal (6
MHz) is input to the USB
controller (IC706).
113
Check that V+BUS5D is input to
Pin 46 of the USB controller
-
(IC706).
Check the connection of the USB
-
communication line.
If the problem is not resolved
- even after the above-mentioned
measures are taken.
PRO DJ screen
6
7
If updating fails, operation stops, none of the
LCD, OEL, nor LEDs light, and the LED for the
USB STOP key flashes repeatedly.
See [4] in "8.3 UPDATING/RECOVERY OF
FIRMWARE."
Operation may be unstable if either of the
cables is not properly connected.
If V+BUS5D is not supplied, check the voltage
of V+DCIN5D and V+USB5D.
If both V+DCIN5D and V+USB5D are supplied,
check the mounting status and output voltages
of IC2204, Q2201, and Q2202. If there is no
voltage output even if there is an input voltage,
the corresponding part is defective; replace it.
If it has not, install the driver.
If the USB controller (IC706) is judged as NG,
it has not been correctly started up. See "[8]
Auto device diagnosis/Status LEDs" in this
section.
As this clock is for communication, connection
disruption cannot be detected by auto device
diagnosis. Check the mounting status of the
crystal oscillator (X701) and its peripheral
devices. If they are properly mounted, they are
defective; replace them.
If it is not, the USB controller (IC706) has not
started. If the USB controller is not properly
soldered, resolder it.
If there is poor connection on the USB commu-
nication line, resolder chips or coils.
Replace the USB controller (IC706).
*4
MEP-7000
7
8
Causes and measures
Causes and measures
8
A
B
C
D
E
F
65