Pnl Circuit Board; Pnr Circuit Board - Yamaha TYROS 2 Service Manual

Tyros2
* The EMKS-FD circuit board has been soldered to the
MKH-D circuit board by connectors.
When replacing one of them, use a soldering iron.
* MKH-D Circuit Board
When installing the MKH-D circuit board, put the circuit
board under the positioning ribs first, and then tighten
the screws. (Fig.8)
* As for the service parts, the rubber contact is not
included in the MKH-D circuit board.
When replacing the MKH-D circuit board, remove all the
rubber contacts from the circuit board to be replaced, and
install them to new circuit board.
19.

PNL Circuit Board

(Time required: About 7 minutes)
19-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
19-2 Remove the four (4) screws marked [480A]. The two
panel holders A can then be removed. (Fig.10)
19-3 Remove the twenty six (26) screws marked [480B]. The
PNL circuit board can then be removed. (Fig.10)
* When installing the PNL circuit board, place the vibra-
tion-proof sheet L in between the circuit board and the
panel buttons.
PNR
USB
[480H]
20
[250A]
MK61L
[250A]
Circuit Board bobber prevention rib
[250]: Bind Head Tapping Screw-P 3.0X8 MFZN2B3 (WF266600)
[480D] [480D]
[480C] [480C] [480C]
EN [470]
[480F-A]
Panel Holder B
[470]: PW Head Tapping Screw-B 3.0X12 MFZN2W3 (WF002100)
[480]: Bind Head Tapping Screw-B 3.0X8 MFZN2Y (EP600250)
[480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
Also, place the protection sheet L on the reverse side of
the circuit board. Then, tighten the screws. (Fig.14)
20.

PNR Circuit Board

(Time required: About 7 minutes)
20-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
20-2 Remove the four (4) screws marked [480C]. The two
panel holders B can then be removed. (Fig.10)
20-3 Remove the twenty six (26) screws marked [480D]. The
PNR circuit board can then be removed. (Fig.10)
* When installing the PNR circuit board, place the
vibration-proof sheet R in between the circuit board and
the panel buttons.
Also, place the protection sheet L on the reverse side of
the circuit board. Then, tighten the screws. (Fig.14)
EMKS-FD
(Fig.8)
[480F] [480B]
[480E] PNC
Panel Holder A
Panel Holder C
(Fig.10)
[A]
(Fig.13)
[250B]
MKH-D
[250B]
[480B]
PNL
Power Switch
[480J]
MICVR
[480G]
[480A]
[480I]
Wheel Assembly
MO
TR
OWNE
BEDIE
MODE