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A20
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VBA12001-R.3668.A
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Mount the electronic buzzer unit (#1055).
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Set the battery-extrusion spring (#158).
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Attach the retaining plate (#159).
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Fix 3 screws (#673).
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Mount the sub-PCB.(B2002)
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Fix 3 screws (#644).
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Solder 3 wires of the electronic buzzer .
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Make the soldering bridges.
#673×3
Assemble so that the
soldering portion of
#1055 comes within the
range of the arrow.
Do NOT push central part.
Electronic buzzer unit / Battery-extrusion spring
Sub-PCB unit
#1055
#644×3
Red
Black
Black
#159
#158
#1055
Soldering bridges
#B2002