User Guide
Manuals
Brands
Beijing Changba Technology Manuals
Audio Equipment
CALF Speaker Microphone
7
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10
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15
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Maintenance
Records
Record
1
Maintenance
time
Malfunction
Cause
Measure
Return
and
exchange
certificate
Check
date
Maintenance
staff
signature
Record
2
Maintenance
time
Malfunction
Cause
Measure
Return
and
exchange
certificate
Check
date
Maintenance
staff
signature
1
...
...
14
15
16
