Troubleshooting - Pioneer RMX-1000 Service Manual

1

5.2 TROUBLESHOOTING

A
[1] Failure in Startup (No response)
No. Cause Diagnostics Point
1-1 AC adapter AC adapter
prior confirmation
1-2 Defective AC adapter
AC adapter
1-3 FFC MAIN Assy -
prior confirmation PNCE Assy FFC
1-4 Standby power MAIN Assy:
failure [4.7E][3.3E]
B
PNCE Assy:
[V+3R3E]
1-5 Defective MAIN Assy:
K0R UCOM [SH_RESET]
PNCE Assy:
[RESET][20MHz]
[2] Failure in Startup
(INPUT, X-PAD, QUANTIZE, AUTO, HOLD buttons and X-PAD FX flashes dimly)
No. Cause Diagnostics Point
C
2-1 V+1R2D MAIN Assy:
power failure [1.2V][V+1R2D_SH]
2-2 FFC MAIN Assy -
prior confirmation PNCE Assy FFC
2-3 Defective MAIN Assy:
SH UCOM, SDRAM1_CLK,
FLASH Memory FLASH_CLK,
FLASH_SI,
[DSP_RESET]
D
[3] Failure in Startup (SD_LED flashes (period 250 ms), other LED light off.)
No. Cause Diagnostics Point
3-1 Power failure Each power supply
3-2 Power failure Each power supply
E
[4] Button, SW, VR operation is abnormal
No. Cause Diagnostics Point
4 Defective Test mode
button/SW/VR
F
26
1
2
Item to be Checked
Check that the DC plug and Power cord
are securely connected.
Check for the +5 V power output from
AC adapter.
Check that FFC is securely connected.
Check that this is no breakage in the
FFC.
Check for the normal power output from
each points.
Check for the correct waveforms output
from each points.
Item to be Checked
Check for the normal power output from
each points.
Check that FFC is securely connected.
Check that this is no breakage in the
FFC.
Check for the correct waveforms output
from each points.
Item to be Checked
Check if any power supply is
short-circuited to ground.
Check for the normal power output from
each points.
Item to be Checked
Check that buttons, SWs, VRs works
correctly in the test mode.
RMX-1000
2
3
Corrective Action
Securely connect the cables. If a cable is
broken, replace it.
AC adapter may be defective. Replace it.
Securely connect the FFC.
If the FFC is broken, replace it.
The parts of D1003, S1001, IC1001 or the
FFC between MAIN Assy and PNCE Assy
may be defective. Replace it.
IC7001, IC7002, X7001 may be defective.
Replace it.
Corrective Action
IC1004 may be defective.
Replace it.
Securely connect the cables. If a cable is
broken, replace it.
IC2501, IC2502 or X2501 may be defective.
Replace it.
Corrective Action
If any power supply is short-circuited, repair it.
The DC/DC converter or regulator which
generates each voltages of the NG points may
be defective.
Replace it.
Corrective Action
Each parts may be defective. Replace it.
Terminal of IC7002 may be defective.
Replace it.
3
4
Reference
—————
—————
4.1 OVERALL WIRING
DIAGRAM
10.15 VOLTAGES
2 3 96
10.16 WAVEFORMS
36 99
100
Reference
10.15 VOLTAGES
5 38
4.1 OVERALL WIRING
DIAGRAM
10.16 WAVEFORMS
18 19 22 42
Reference
5.3 VOLTAGE
MONITORING CIRCUIT
10.15 VOLTAGES
2 3 5 8 11
12 13 14 16 17
5.3 VOLTAGE
MONITORING CIRCUIT
10.15 VOLTAGES
2 3 5 8 11
12 13 14 16 17
Reference
6.1 TEST MODE
4