Disassembling The Lcd Panel Assembly; 27A. Gear; 27B. Hinge; 27C. Lcl Circuit Board - Yamaha TYROS 2 Service Manual

27.

Disassembling the LCD Panel Assembly

27a. Gear (Time required: About 7 minutes)
27a-1 Remove the LCD panel assembly. (See procedure 26.)
27a-2 Remove the four (4) screws marked [180A]. The gear
can then be removed. (Fig.20)
27b. Hinge (Time required: About 7 minutes)
27b-1 Remove the LCD panel assembly. (See procedure 26.)
27b-2 Remove the eight (8) screws marked [180B]. The LCD
lower case can then be removed. (Fig.20)
[180A]
Gear
Hing
LCD Lower Case
[180]: Bind Head Tapping Screw-B 3.0X12 MFZN2B3 (WE998100)
(Fig.20)
27b-3 Remove the two (2) screws marked [180] . The hinges
can then be removed. (Fig.21)
[180] Hinge
LCD Lower Case
[180]: Bind Head Tapping Screw-B 3.0X12 MFZN2B3 (WE998100)
(Fig.21)

27c. LCL Circuit Board

27c-1 Remove the LCD panel assembly. (See procedure 26.)
27c-2 Remove the LCD lower case. (See procedure 27b-2.)
27c-3 Remove the five (5) screws marked [190A]. The LCL
*
LCL
Hing
[190A]
[190]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)

27d. LCR Circuit Board

[180B]
27d-1 Remove the LCD panel assembly. (See procedure 26.)
27d-2 Remove the LCD lower case. (See procedure 27b-2.)
27d-3 Remove the five (5) screws marked [190B]. The LCR
*
27e LCD (Time required: About 12 minutes)
27e-1 Remove the LCD panel assembly. (See procedure 26.)
27e-2 Remove the LCD lower case. (See procedure 27b-2.)
27e-3 Remove the four (4) screws marked [190C]. The LCD
Hinge [180]
(Time required: About 12 minutes)
circuit board can then be removed. (Fig.22)
When removing the FFC cable connected to
CN1,CN2,CN3 and CN4, release the lock of the connec-
tor first.
Also, after connecting it, do not forget to lock it.
LCD
LCD Upper Case [190C]
(Fig.22)
(Time required: About 12 minutes)
There may be high voltage components. Make sure to
disassemble the components after turning the power
switch off.
circuit board can then be removed. (Fig.22)
When removing the FFC cable connected to CN5, release
the lock of the connector first.
Also, after connecting it, do not forget to lock it.
can then be removed. (Fig.22)
Tyros2
LCR
[190B]
23