Yamaha MR1642 Service Manual - Page 17

Mdisassembly, Procedure, 1*jip

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MDISASSEMBLY PROCEDURE (53.1*jip) MR842/MR1242/MR1642 1. Removal of Bottom Board • Remove the 14 bind tapping screws OA (3x8), and bind head screws 8 (4x8), the Bottom board can be removed (Fig.1).. 1 . 11*R091- L 7i ▪ .-/} . ,is E/7*F)C, (3 x 8) 144cL , -f /1\*C) (4x8) 17#M-1.-, (Fig.1) A A Bottom Cover A A A Fig. 1 2. Removal of MR-A (MR-Al) Circuit Board • Pull out the 9 volume knobs 0 and slide knob. (Fig.2). • Remove the hexagonal nuts. (Fig.2) • Remove the Bottom board. (see procedure 1) • Remove the bind tapping screw © (3x8), the MR-A (MR-Al) circuit board can be removed. (Fig.3) 2. MR-A (MR-A 1 ) h 0M- L • *Ar7,/, 'Y -7,::-.0941WILA ,--4 Afil-t--/ (Fig.2) • IlifRALito (1xiMi) E':/ 7* :. 7© (3 x 8) (MR-A 1) F/- F L (Fig.3) MR -A Volume knob Slide knob I I II I I I II 1 - oa aa aa aa aa aa aa aa - 0OOO OO0O 0OOOOO00OOOOO00OOOOO0OOOcOOOO0•o.O OOOO0oOOOOO0Oc3Eg4.m. 2 o EIE OOOOOO.OccV 0 a a a a a a a a 00.,0000 aa a a a a a a 0a0a4..,.0..4.a,a0a0.040)(0*.A06a) _ 0 WA 0 NA ME - Knob, Volume ("ti - Hexagonal Nut (AA T ) Fig. 2 0 0 O O O O O O 0 OOOOO O O MR-Al O O O O O O Fig. 3 24 MR842/MR1242/MR1642

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MR842/MR1242/MR1642
MDISASSEMBLY
PROCEDURE
(53.1*jip)
1.
Removal
of
Bottom
Board
•
Remove
the
14
bind
tapping
screws
OA
(3x8),
and
bind
head
screws
8
(4x8),
the
Bottom
board
can
be
removed
(Fig.1)..
1
.
11*R091-
L
7i
.
-
▪
/}
.
,
is
E/7*F)C
,
(3
x
8)
144cL
,
-f
/1\*C)
(4x8)
17#M-1.-,
(Fig.1)
A
A
A
Bottom
Cover
A
A
2.
Removal
of
MR
-A
(MR
-Al)
Circuit
Board
•
Pull
out
the
9
volume
knobs
0
and
slide
knob.
(Fig.2).
•
Remove
the
hexagonal
nuts.
(Fig.2)
•
Remove
the
Bottom
board.
(see
procedure
1)
•
Remove
the
bind
tapping
screw
©
(3x8),
the
MR
-A
(MR
-Al)
circuit
board
can
be
removed.
(Fig.3)
Volume
knob
Slide
knob
I
I
II
I
I
I
II
1
o
a
a
a a a
a
a
—
a
a
a a a a a
a
-
OOOOOc•.OO
OOOOOOOO
OOOOOOOO
OOOOOOOO
m
2
00000000
000
oo
c3g4
o
OOOOOOOOE..
EIE
OOOOOO.OccV
0
a
a
a
a
a
a
a
a
00.,0000
004,04
,
00040)(0*.A06)
aa
......
aaa.
a
0
WA
0
NA
_
ME
—
Knob,
Volume
("ti
)
—
Hexagonal
Nut
(AA
T
Fig.
2
Fig.
1
2.
MR
-A
(MR
-A
1
)
h
0M-
L
•
*Ar7,/
,
‘Y
-
7,::-.0941WILA
--
,4
Afil-t--/
(Fig.2)
•
IlifRALito
(1
xiMi)
E':/
7*
.
:7©
(3
x
8)
MR
-A
(MR
-A
1)
F/—
F
L
(Fig.3)
0 0
0
O
O O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
MR
-Al
Fig.
3
24
MR842/MR1242/MR1642