Yamaha SKB-180 Instrukcja serwisowa - Strona 10
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KB-180/SKB-180
5.
DMLCD Circuit Board, Back Light Assembly
and LCD
(Time required: About 4 minutes)
5-1
Remove the lower case assembly. (See procedure 1.)
5-2
Remove the LCD unit. (See procedure 4.)
5-3
Remove the eight (8) screws marked [L100]. The
DMLCD circuit board can then be removed from
the LCD unit. (Fig. 7)
5-4
Remove the LCD, back light assembly and rubber
connectors from the LCD panel. (Fig. 7)
*
When attaching the rubber connector to the
LCD panel, set the conductor side to face in-
ward. (Fig. 8)
*
When installing the DMLCD circuit board, tight-
en the screws 1 through 8 in numerical order
as shown in Fig. 9. (Fig. 9)
If the DMLCD circuit board is replaced, execute
the "Factory Set" in the test program.
[L100]
[L100]: Bind Head Tapping Screw-P 3.0X12 MFZN2W3 (WE972900)
<Bottom view>
Upper case assembly
10
Nonwoven fabric cloth
LCD panel
LCD
Back light assembly
Rubber connector
LCD holder
DMLCD
Fig. 7
[210J]
[210J]
[210J]
PNR
(PN 1/6)
[210]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
6.
MIDI Circuit Board
(Time required: About 6 minutes)
6-1
Remove the lower case assembly. (See procedure 1.)
6-2
Remove the four (4) screws marked [210G]. The
MIDI circuit board can then be removed. (Fig. 6)
7.
PNL Circuit Board
(Time required: About 6 minutes)
7-1
Remove the lower case assembly. (See procedure 1.)
7-2
Remove the AM circuit board. (See procedure 3.)
7-3
Remove the eleven (11) screws marked [210H]
and two (2) screws marked [210I]. The PNL circuit
board can then be removed. (Fig. 10)
[210H]
[210K]
[210K]
[210H]
PNR
PNL
(PN 3/6)
(PN 2/6)
Fig. 10
Rubber connector
Conductor side
Rubber connector
Fig. 8
3
4
5
6
DMLCD
1
7
8
2
Fig. 9
PNL
[210H]
(PN 4/6)
PB
(AMJK 6/6)
[210I]
[210N]