Diagnosis; Troubleshooting - Pioneer XDJ-R1 Service Manual

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5. DIAGNOSIS

5.1 TROUBLESHOOTING

[1] Power failure
A
Symptom: SWITCHING POWER is fault.
Diagnostic procedure:
1. Check if SWITCHING POWER CN1: AC 100 V to AC 240 V is normal.
2. Check SWITCHING POWER CN3:
V1 → +7V, V2 → ST5V, V3 → +15V, V4 → -15V, V5 → 6V.
3. Check waveform for SWITCHING POWER, confirm it is correct.
SWITCHING POWER C28 positive to ground is +7V figure (Waveform
SWITCHING POWER C47 positive to ground is ST5V figure (Waveform
SWITCHING POWER C31 positive to ground is +15V figure (Waveform
SWITCHING POWER C24 negative to ground is -15V figure (Waveform
SWITCHING POWER C21 positive to ground is +6V figure (Waveform
B
4. If Waveform is abnormal, you could change it.
[2] VFD dose not light
Symptom: VFD module is fault, it is no light-emitting.
Diagnostic procedure:
1. Check waveform for VFD module, you confirm it is correct.
Check CD Assy C112 positive to ground is +Ef figure (Waveform
Check CD Assy C112 negative to ground is -Ef figure (Waveform
Check CD Assy C103 positive to ground is VH figure (Waveform
2. If Waveform is abnormal, you could change it.
C
[3] LED dose not light
Symptom: LED part is fault, it is no light-emitting.
Diagnostic procedure:
1. Check waveform for LED, you confirm it is correct.
2. It is tested at CD Assy Q102 to Q105 pin C (CH1).
It is tested at CD Assy Q106 to Q112 pin C (CH2).
Waveform for LED ON is figure (Waveform
Waveform for LED OFF is figure (Waveform
3. If Waveform is abnormal, you could change it.
D
[4-1] No key functions
Symptom: No key function.
Diagnostic procedure:
1. Check waveform for KEY, you confirm it is correct.
Waveform for KEY OFF is figure (Waveform
Waveform for KEY ON is figure (Waveform
2. If Waveform is abnormal, you could change it.
[4-2] Rotary selector not controllable
Symptom: Rotary selector of encoder switch is fault.
Diagnostic procedure:
E
1. Check waveform for rotary encoder, you confirm it is correct.
Waveform for rotary encoder is figure (Waveform
2. If Waveform is abnormal, you could change it.
[4-3] Slider volume not controllable
Symptom: Crossfader and channel-fader VR is fault.
Diagnostic procedure:
1. Check waveform for VR, you confirm it is correct.
C802 (CROSSFADER), C807 (CH1 FADER), C806 (CH2 FADER) that positive to ground is VR out.
Waveform for min VR out is figure (Waveform
F
Waveform for max VR out is figure (Waveform
2. If Waveform is abnormal, you could change it.
16
1
2
2-1 ).
).
2-2
2-3 ).
3-1 ).
).
3-2
)(CH1 → KEY pin 1/CH2 → KEY pin 2).
4-1
)(CH1 → KEY pin 1/CH2 → KEY pin 2).
4-2
)(CH1 → encoder pin 1/CH2 → encoder pin 3).
4-3
4-4 ).
4-5 ).
XDJ-R1
2
3
1-1 ).
1-2 ).
1-3
).
1-4 ).
).
1-5
3
4
4