General Informatin; Diagnosis; Service Mode - Pioneer DJD-707 Service Manual

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7. GENERAL INFORMATIN

7.1 DIAGNOSIS

7.1.1 SERVICE MODE

A
1. Outline of Service Mode
With this unit, the whole system is controlled by a single system control microcomputer. Variable Resistor Check mode and Setup mode for
the system control microcomputer are provided.
1 Variable Resistor Check mode
Mode for checking each variable resistor
2 Setup mode
Mode for initial setting for the noncontact fader.
This mode also allows you to check the version of the system control microcomputer.
B
2. Variable Resistor (VR) Check Mode
To enter VR Check mode 1, ground Pin 28 of the system control microcomputer then turn on the power.
To enter VR Check mode 2, ground Pin 29 of the system control microcomputer then turn on the power.
VR Check Mode : ON
POWER OFF
C
VR Check Mode : CANCEL
D
POWER OFF
In this mode, you can check if the input to each VR is normal by observing which indication goes on or off depending on the position of a VR,
as shown in the table below:
Mode VR
CH1 FADER VR
1
E
CH2 FADER VR
CROSS FADER 1 VR
2
CROSS FADER 2 VR
F
112
1
2
£
IC1234
GND
POWER ON
¢
IC1234
GND
POWER ON
→ CH-1 FADER START : Lights
VR<11
12<VR<21 → CH-1 FADER START : Lights
→ CH-1 FADER START : Goes off C.F.1 FADER START : Lights
22<VR
→ CH-2 FADER START : Lights
VR<11
12<VR<21 → CH-2 FADER START : Lights
→ CH-2 FADER START : Goes off C.F.2 FADER START : Lights
22<VR
→ CH-1 FADER START : Lights
VR<11
12<VR<21 → CH-1 FADER START : Lights
→ CH-1 FADER START : Goes off C.F.1 FADER START : Lights
22<VR
→ CH-2 FADER START : Lights
VR<11
12<VR<21 → CH-2 FADER START : Lights
→ CH-2 FADER START : Goes off C.F.2 FADER START : Lights
22<VR
∗ 0<VR<32
DJM-707
2
3
VR Check
Mode 1
VR Check
Mode 2
Indications
3
4
Release
28
GND
Release
29
GND
C.F.1 FADER START : Goes off
C.F.1 FADER START : Lights
C.F.2 FADER START : Goes off
C.F.2 FADER START : Lights
C.F.1 FADER START : Goes off
C.F.1 FADER START : Lights
C.F.2 FADER START : Goes off
C.F.2 FADER START : Lights
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