Yamaha KB-180 Service Manual page 9

3. AM Circuit Board
(Time required: About 4 minutes)
3-1 Remove the "MASTER VOLUME" knob as shown
in Fig. 4. (Fig. 4)
3-2 Remove the screw marked [210A]. (Fig. 6)
3-3 Remove the lower case assembly. (See procedure 1.)
3-4 Remove the seven (7) screws marked [210B],
three (3) screws marked [210C] and two (2)
screws marked [210D]. The AM circuit board can
then be removed. (Fig. 6)
3-5 Pull out the push knob from the AM circuit board.
(Fig. 5)
4. LCD Unit
(Time required: About 3 minutes)
4-1 Remove the lower case assembly. (See procedure 1.)
4-2 Remove the two (2) screws marked [210E] and
four (4) screws marked [210F]. The LCD unit can
then be removed. (Fig. 6)
<Bottom view>
[A]
<Rear view>
[210G] [210E]
MIDI
(AMJK 2/6)
Upper case assembly
[210]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
Master volume knob
LCD unit
[210E] [210B] [210D]
[210F] [210B] [210B]
AM
(AMJK 1/6)
Fig. 6
KB-180/SKB-180
Fig. 4
Push knob
AM
Fig. 5
[210A]
AM (AMJK 5/6)
AM (AMJK 4/6)
[A]
[210C]
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