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Pioneer MEP-7000 Service Manual

Pioneer MEP-7000
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62
MEP-7000
1
2 3 4
A
B
C
D
E
F
1
2 3 4
No. Waveform Items for check Causes and measuresPoints to be checked
No. Waveform Items for check Causes and measuresPoints to be checked
5
6-
OELB ASSY
OELB ASSY
134,
139
1
2
3
The rotation of the JOG dial is not detected, or its operation becomes irregular.
DISP ASSY
DISP ASSY
CABLE
140,
141
140,
141
-
[3-6] Abnormality in the JOG dial
1-
2
3
Pressing on the JOG dial is not detected, or operation by pressing on the dial sometimes becomes irregular.
DISP ASSY
DISP ASSY
CABLE
142
142
After the JOG Assy is disassembled then reassembled, be sure to check that the load on the JOG dial is
within the specified range. If the gear is replaced, oil must be applied to the gears.
Check the waveforms at
OEL_CLK, OEL_DATA,
OEL_CS#, OEL_RST#,
OEL_CMD, EL_MCLK on the
signal line of the OELB Assy.
If the problem is not resolved
even after the above-mentioned
measures are taken
Check if the cables that connect
the JOGR and DISP Assys are
securely connected and if there is
breakage in the cables.
Check if the signal for JOG dial
rotation is input to the SIDE
PANEL
microcomputer (IC2600).
Check the input/output signals for
hysteresis (IC2601).
Check if the cables that connect
the JOGT and DISP Assys are
securely connected and if there is
breakage in the cables.
Check if the signal on JOG dial
pressing is input to the SIDE
PANEL microcomputer (IC2600).
Check the input/output signals for
hysteresis (IC2601).
If there is no signal on the OELB Assy,
poor connection is suspected. Resolder the
ICs.
Check if the power voltage
(V+14D, V+5D) to drive the OEL
is supplied.
If the power is not supplied, check the power
line connections. If neither V+14D nor V+5D
power is supplied, check the mounting status
of the regulator IC and its peripheral parts on
the NMAIN Assy. If they are properly mounted,
they are defective; replace them.
Check the waveforms at
OEL_CLK, OEL_DATA,
OEL_CS#,OEL_RST#,
OEL_CMD, and OEL_MCLK on
the signal line of the DISP Assy.
If there is no signal output from the SIDE
PANEL microcomputer (IC2600), check its
mounting status. If it is properly mounted, the
port connector may be defective; replace it.
Check if the power voltage
(V+14D, V+8R5D, V+5D) to drive
the OEL is supplied.
If the power is not supplied, check the power
line connections.
If a connection is loose, firmly connect the
cables. If there is breakage, replace the cable.
If the signal is input, check the mounting status
of the SIDE PANEL microcomputer (IC2600).
If it is properly mounted, the port connector
may be defective; replace it.
If there is no input signal, go to [3].
If no signal is output even if there is an input
signal, check the mounting status of the
hysteresis (IC2601). If it is properly mounted, it
may be defective; replace it. If there is no input
signal, the photo interrupter may be degraded.
Replace the JOGR Assy.
If a connection is loose, firmly connect the
cables. If there is breakage, replace the cable.
If the signal is input, check the mounting status
of the SIDE PANEL microcomputer (IC2600).
If it is properly mounted, the port connector
may be defective; replace it.
If there is no input signal, go to [3].
If no signal is output even if there is an input
signal, check the mounting status of the
hysteresis (IC2601). If it is properly mounted, it
may be defective; replace it. If there is no input
signal, the photo interrupter may be degraded.
Replace the JOGT Assy.
Replace the OEL ASSY. The DXX2590- OEL
part for servicing is composed of the OEL,
OELB Assy, and OEL stay.
2 DISP ASSY
119
3
4
DISP ASSY
OELB ASSY
119
134,
139

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Pioneer MEP-7000 Specifications

General IconGeneral
Frequency range4 - 20000 Hz
Channels quantity- channels
Digital sound processing- bit
Total Harmonic Distortion (THD)0.006 %
Dimensions (WxDxH)483 x 325 x 91 mm
Power consumption (typical)33 W
Weight and Dimensions IconWeight and Dimensions
Weight6100 g

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