Pioneer CDJ-900 Service Manual page 36

1
A
[10-3] If any problem is generated during upgrading of the software
If upgrading fails, an error indication will be displayed on the FL display.
No. Cause Diagnostics Point
Upgrading fails
1
B
[11] Error Codes
How to respond when an error code is displayed on the FL DISPLAY is described below.
E-7001: DISC DRIVE ERROR
• The ATAPI drive does not work properly.
No. Cause Diagnostics Point
C
Defective power
1 SRV Assy
supply
Loose
2 SRV Assy
connection
Clock signal
3 SRV Assy
error
D
4 Signal errors SRV Assy
5 Defective parts SRV Assy
E-7010: DSP DEVICE ERROR
• The program cannot be written to the DSP (IC501) when the unit is turned on.
No. Cause Diagnostics Point
Defective power
1 MAIN Assy
E
supply
Defective clock
2 MAIN Assy
signal
Defective power
3 MAIN Assy
supply
4 Signal errors MAIN Assy
F
5 Signal errors MAIN Assy
36
1
2
Item to be Checked
Symptoms that may appear when the unit is
turned on after upgrading failed:
• If the files for upgrading are invalid:
The unit will start up in the normal manner.
• If the upgrading process fails during the
process for the MAIN CPU:
"E-7024" will be displayed.
• If the upgrading process fails during the
-
process for the GUI:
Nothing will be displayed.
• If the upgrading process fails during the
process for the PANEL:
"E-7022" will be displayed.
• If the upgrading process fails during the
process for the DRIVE:
"E-7001" will be displayed.
Item to be Checked
Check the power voltages (V+7R5, V+5D,
V+3D, V+3A and V+1R5D) in the SRV Assy.
Check the connections of the signal line
of ATA_RESET.
Check that the clock signal (16.9344 MHz)
is input to SODC(IC7008).
Check the communication waveforms of
SODC (IC7008) and FLASH ROM IC
(IC7006).
If the symptom persists after the above
corrections,
Item to be Checked
Check the power voltages (V+3R3_DSP
and V+1R2_DSP) of DSP (IC501).
Check that the clock signal (16.394 MHz)
is input to DSP (IC501).
Check the power voltages (V+3R3_DSP )
of SDRAM (IC505) for DSP (IC501).
Check that the DSP710_RST signal that is
input to the DSP (IC501) is "H."
Check the connection of bus line between
the DSP (IC501) and SDRAM (IC505).
2
3
Corrective Action
Refer to the "6. SERVICE MODE."
Corrective Action
If no power is supplied, check the mounting statuses of the
regulator ICs (IC7003/IC7005/IC7007) and their peripheral
parts. If soldering is improper, resolder it. If the symptom
persists after this correction, replace the parts.
If the connection is properly made and the signal is output
from the MAIN CPU (IC101,) then the port on the SODC
(IC7008) may be damaged. Replace it.
If the connection is properly made but the signal is not
output from the MAIN CPU (IC101,) then the MAIN CPU
(IC101) may be damaged. Replace it.
If no clock signal is output, check the mounting status of
the OSC (X7001) and its peripheral chips. If they are
properly mounted, then the parts may be defective.
Replace them.
If there is any waveform that does not change between H
and L, communication between the FLASH ROM IC
(IC7006) and SODC (IC7008) may not be established.
Check their mounting statuses. If soldering is improper,
resolder them.
Replace the SRV Assy.
Corrective Action
If power is not supplied, check the connections of
the power line.
If V+3R3E is supplied, go to [2].
If V+3R3E is not supplied, go to [3].
If it is not, the crystal oscillator (X503) and their peripheral
chips may be defective or their mounting statuses may be
improper. Resolder the parts. If the symptom persists after
this correction, replace the parts.
If power is not supplied, check the connections of
the power line.
If V+3R3E is supplied, go to [2].
If V+3R3E is not supplied, go to [3].
If it is not "H," check the mounting status of the pull-up
resistor (R526). If it is properly mounted, then the mounting
status of the IC123 may be improper. Resolder it. If the
symptom persists after this correction, replace it.
If the waveform is not proper, check the mounting status of
the SDRAM (IC505) and the connections of the BUS lines.
If no problem is found, replace the parts.
CDJ-900
3
4
Reference
6.SERVICE
MODE
[4] Error display
list
[7] Firmware
update
Reference
4.3 POWER SUPPLY
BLOCK DIAGRAM
10.1 SRV
ASSY(1/2)
10.1 SRV
ASSY(1/2)
10.1 SRV
ASSY(1/2)
-
Reference
10.4 MAIN
ASSY(2/3)
-
10.4 MAIN
ASSY(2/3)
10.3 MAIN
ASSY(1/3)
10.4 MAIN
ASSY(2/3)
4