Pioneer CDJ-350 Service Manual page 26

1
A
[7-2] The drive does not work during Test Operation mode.
The LD does not emit light.
No. Cause Diagnostics Point
1 Defective pickup
The spindle motor does not rotate.
No. Cause Diagnostics Point
1 Signal errors MAIN Assy
B
2 Signal errors MAIN Assy
3 Power failure MAIN Assy
4 Defective parts
In-focus not possible
C
No. Cause Diagnostics Point
1 Defective pickup MAIN Assy
2 Power failure MAIN Assy
No tracking close
No. Cause Diagnostics Point
1 Defective pickup MAIN Assy
D
2 Power failure MAIN Assy
Traverse
3 —
mechanism
[8] Error Codes
How to respond when an error code is displayed on the FL DISPLAY is described below.
E
E-6002: COMMUNICATION ERROR
• The program cannot be written in the DSP.
No. Cause Diagnostics Point
1 Power failure MAIN Assy
2 Defective part MAIN Assy
F
26
1
2
Item to be Checked
Check the LD current and measure the
—
resistance value of the actuator.
Item to be Checked
Check that the DRVMUTE1 signal becomes
H after loading is completed.
Check a SPIN signal.
(1.65 V at the center. The voltage in the
start-up acceleration is around 3 V.)
Check the power voltages.
(V+7R6M, V+5R6M, VREF1R65, V+3R3S)
If the symptom persists after the above
—
corrections,
Item to be Checked
Check the LD current and measure the
resistance value of the actuator.
Check the power voltages.
(V+7R6M, V+5R6M, VREF1R65, V+3R3S)
Item to be Checked
Check the LD current and measure the
resistance value of the actuator.
Check the power voltages.
(V+7R6M, V+5R6M, VREF1R65, V+3R3S)
Check that focusing is in. (If focusing is out,
tracking close is not possible.)
Item to be Checked
Check the power voltages.
(V+3R3A, V+1R25)
Check if the AUDIO DSP (IC301) is
operating.
2
3
Corrective Action
See "5.3 Diagnosis of the Pickup Assy" for details.
Corrective Action
If the signal is not normal, check the mounting
statuses of the DRIVER IC (IC204) and MAIN CPU
(IC103) terminals. If they are properly mounted, then
the IC103 may be defective.
If the signal is not normal, check the mounting
statuses of the DRIVER IC (IC204) and Servo CPU
(IC201) terminals. If they are properly mounted, then
the IC204 and IC201 may be defective.
Check the mounting statuses of the regulator IC of
the power-supply section that produces that voltage
and its peripheral parts. If they are properly mounted,
then the parts may be defective.
VREF1R65 is produced at the Servo IC (IC201).
If this voltage is not output, check the mounting
status of the IC201. If it is properly mounted, then the
part may be defective.
DRIVER IC(IC204) may be defective.
Corrective Action
Refer to the "5.3 Diagnosis of the Pickup Assy."
For any power-supply section that does not output
the voltage, check the mounting statuses of the
regulator IC and its peripheral parts. If they are
properly mounted, then the parts may be defective.
Corrective Action
Refer to the "5.3 Diagnosis of the Pickup Assy."
For any power-supply section that does not output
the voltage, check the mounting statuses of the
regulator IC and its peripheral parts. If they are
properly mounted, then the parts may be defective.
See "In-focus not possible" above.
Corrective Action
If the voltage level is abnormal, IC402 or IC403
may be defective.
If the AUDIO DSP (IC301) is not operating, it may
be defective.
If the AUDIO DSP (IC301) is operating, the MAIN
CPU (IC103) may be defective.
CDJ-350
3
4
Reference
5.3 Diagnosis of
the Pickup Assy
Reference
—
—
4.3 POWER SUPPLY
BLOCK DIAGRAM
—
Reference
5.3 Diagnosis of
the Pickup Assy
4.3 POWER SUPPLY
BLOCK DIAGRAM
Reference
5.3 Diagnosis of
the Pickup Assy
4.3 POWER SUPPLY
BLOCK DIAGRAM
—
Reference
10.10 VOLTAGES
[9] Basic operation
check of CPU/DSP
4