27
RMX-1000
5
6
7
8
5
6
7
8
A
B
C
D
E
F
[6] X-PAD does not correspond.
(Only the SD_LED flashes at intervals of 200 ms. No audio signal can be input/output.
The buttons that can light correspond.)
6-1 FFC
prior confirmation
MAI
N
Assy -
CDCB Assy FFC
Check that FFC is securely connected.
Check that this is no breakage in the
FFC.
Securely connect the FFC.
If the FFC is broken, replace it.
4.1 O
V
ERALL
W
IRI
N
G
DIAGRAM
6-2 Power failure
CDCB Assy: [3.3
V
]
Check for the normal power output from
each points.
Q2510 may be defective.
Replace it.
10.15
V
OLTAGES
[7] X-PAD does not function.
7
Defective
Sensor IC
CDCB Assy:
[SI][SO]
Check that the amounts of information for
[SI] and [SO] when the X-PAD is touched
or not are different.
Terminal of IC6001 may be defective.
Replace it.
10.16
W
A
V
EFORMS
[5] Failure in LED display
5
Defective
LED/7SEG
Test mode
Check that beach LEDs works correctly
in the test mode.
Each parts may be defective. Replace it.
Terminal of IC7002 may be defective.
Replace it.
6.1 TEST MODE
6-3 SH - CDC
communication
error
CDCB Assy:
[CS][SCK][SI][SO]
[I
N
T]
Check for the correct waveforms output
from each points.
IC6001 may be defective.
Replace it.
10.16
W
A
V
EFORMS
6-4 SH - DSP
communication
error
MAI
N
Assy:
ADC_RESET,
DAC_RESET
Check for the correct waveforms output
from each points.
IC3502 may be defective.
Replace it.
10.xx
W
A
V
EFORMS
[
8
] Failure in AUDIO input/output
8
-1 Defective
Input section
analog circuit
Input terminal - ADC
each waveforms
Check for the correct waveforms output
from each points.
IC4001 to IC4006, JH7401 or
V
R7401 may
be defective.
Replace it.
10.16
W
A
V
EFORMS
8
-2 Defective
ADC/DSP/DAC
ADC - DAC
each waveforms
Check for the correct waveforms output
from each points.
IC3502, IC4007 or IC5001 may be defective.
Replace it.
10.16
W
A
V
EFORMS
8
-3 Defective
Output section
analog circuit
DAC - output terminal
each waveforms
Check for the correct waveforms output
from each points.
IC5001 to IC5003 may be defective.
Replace it.
10.16
W
A
V
EFORMS
8
-4 Defective
MUTE circuit
MUTE circuit
waveform
Check for the correct waveforms output
from each points.
Q5001, Q5002, Q5003, Q5014, Q7002 may
be defective. Replace it.
10.16
W
A
V
EFORMS
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
to
91
90
92 93 94 95
74 75 76 98
48
63
to
64
73
to
77
88
64 73
91 92
