Yamaha PORTATONE KB-280 Instrukcja serwisowa - Strona 8
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KB-280
DISASSEMBLY PROCEDURE
Caution: Be sure to attach the removed filament tape just as it was before removal.
1.
Lower Case Assembly
(Time required: About 2 minutes)
1-1
Remove the battery cover assembly. (Fig. 1)
1-2
Remove the nine (9) screws marked [320] and three
(3) screws marked [330]. The lower case assembly
can then be removed. (Fig. 1)
<Bottom view>
Battery cover assembly
[320]
[320]
<Top view (Lower Case Assembly>
Connector assembly BAT (Red)
Soldered
8
[320]
[330]
[320]
[320]: Bind Head Tapping Screw-B 3.0X12 MFZN2W3 (WE987400)
[330]: Bind Head Tapping Screw-B 3.0X30 MFZN2W3 (WF491000)
Connector assembly BAT (Black)
Soldered
(Fig.2)
2.
Spring Terminal
(Time required: About 2 minutes)
2-1
Remove the lower case assembly. (See procedure 1.)
2-2
Remove the connector assemblies BAT (red/black)
soldered to the spring terminals (+) and (–). (Fig. 2)
2-3
Unfasten the two (2) each hooks (A) at the bottom
of the lower case assembly and pull out the respective
spring terminals. (Fig. 3)
<Top view>
Push knob
Volume knob
Speaker grille L
(Fig.1)
Hook (A)
Speaker grille R
Hook (A)
Spring Terminal
(Fig.3)