10
V4 Service manual
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2
General Service tasks
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2.1
Embossing head
The embossing head is designed with 6 male and 7 female hammers. This hammers are designed
for a life cycle above 1.000 000 000 strokes corresponding to about 1.000 000 Braille pages. Both
the tips of the hammers and the anvils is made in hardened steel for maximum life cycle.
The most significant improvements in V4 embossing heads are:
•
Individually easily removable hammers
•
Paper is guided by aluminum profile, no longer any plastic profiles
•
The Embossing Head PCB V4 has click on montage and clearly marked hammer number
•
The hammer number is clearly marked on the embossing head and on the Embossing Head
PCB V4
•
Hammers with longer life cycle
2.1.1
Replace hammer
•
Print a hammer test page by pressing HELP+ON. It printout squares of all hammers with
corresponding number.
•
Remove the embossing head PCB from the click connectors
•
Disconnect the faulty hammer cable
•
Remove the hammer holder by pressing it down and sideways. See video at www.youtube.com
•
Insert the new hammer in the same way
•
Connect the new hammer cable to the PCB
2.1.2
Replace anvils
•
Remove the 4 clips holding the anvil profile
•
Remove the rubber strip
•
Remove ALL 13 (7 female and 6 mail) anvils
2.2
Power supply Specification
Switched power supply
Input voltage: 90-264 VAC or 135-370 VDC
Input frequency range: 47-63 Hz
Output voltage: 48 V
Working temperature: 0 to +40 C (32 to +104 F)
Working humidity: 20% - 90% RH non-condensing
2.2.1
Basic and Everest
Switched
Power supply 160W (Mean Well GS160A48-R7B)
Output voltage: 48V
Output current: 3.34A
Efficiency 94%