Chapter 5 Troubleshooting and on board repair
MDC-7000/7900 Series
5-20
0092669002-07
2
Change motor brushes with new set.
Is motor brush length within
nominal value (at least 6 mm) ?
No
Yes
Motor failure
Failure of motor power or wiring in
antenna unit, or failure of Display
unit power
Yes
Is motor drive power (24V for J2-5
to J1-5) normal?
No
1
Yes
Motor driver PCB failure.
Is motor drive power (24V for TB1,
2 and 3) normal?
Motor failure
No
Is used brushless motor?
Yes
2
No
Failure of motor power or wiring in
antenna unit, or failure of Display
unit power
Yes
Is motor drive power (24V for J2-8
and J1-8) normal?
No
Summary of Contents for MDC-7006
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Page 44: ...Chapter 3 installation method MDC 7000 7900 Series 3 24 0092669002 07 Unit mm inch MRM 108 ...
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Page 155: ...0092669002 07 A 1 INTER CONNECTION DIAGRAM RB807 ...
Page 156: ...A 2 0092669002 07 INTER CONNECTION DIAGRAM RB808 ...
Page 157: ...0092669002 07 A 3 INTER CONNECTION DIAGRAM RB809 ...
Page 158: ...A 4 0092669002 07 INTER CONNECTION DIAGRAM MRD 108 MRO 108 ...
Page 159: ...0092669002 07 A 5 INTER CONNECTION DIAGRAM MRM 108 MRO 108 ...
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