Removal Of Main Parts; Enclosure Section; Front Panel Assembly; Mechanism Assembly - JVC TD-W717TN Service Manual

TD
-
W 717 TNC
/ J
TD
-
W 718 BKA
/
B
/
E
/ EN /
G
/ U / UT
\
2
\
Removal of main parts
Enclosure Section
Top
cover
( Fig
.
2
-
1 )
1
.
Remove four screws < £
)
retaining the
top
cover from both
side
.
2
.
Remove
two
screws © retaining the top cover from the
back side
.
3
.
To remove the
top
cover
,
slide in direction of allow and lift
away ( refer to Fig
.
2
-
1 )
.
Front panel assembly ( Fig
.
2
-
2 )
1
.
Remove the top cover as described in above
.
2
.
Remove three screws
©
retaining the front panel ass '
y
from bottom side
.
3
.
Release the
front panel ass
'
y from
two
pawls in the front
and bottom sides and draw it
to
the front side
.
4
.
Disconnect all connectors
between the mechanism ass
'
y ,
front panel ass '
y and the main board ass '
y
.
Q ,
13
Fig
.
2
-
1
3
Pawl
Pawl
o
N
1 }
Pull 2
Push up with a screwdriver ,
etc
.
1
Mechanism assembly
Although the
mechanism
assembly can be removed
without detaching the front panel ass ' y
,
it is recommended
to
detach the front panel ass
'
y
to
do the work with ease
.
1
.
Remove two screws
©
or two screws
© from the corners of
the mechanism
.
( Fig
.
2
-
5 )
2
.
After disconnecting the mechanism control board from the
connector of the mechanism board
, remove two screws ©
to
remove the mechanism
control board
.
( Fig
.
2
-
3
,
2 - 4 )
3
.
Open the door and remove the mechanism ass
' y
.
( At this time
,
door lock
arm spring
and door lock arm are
removed together with
.
)
4
.
For moving the mechanism ass
' y only
,
disconnect the
following wirings
.
a ) Mechanism ass ' y side ( Fig
.
2
-
4 )
Top side connector of the cam switch board ( CN 2 )
.
Connector of the
motor
board ( CN
1
) . ( Board to Board
connector
)
b ) Main board ass
'
y side ( Fig .
2
-
3 )
Disconnect CN
802 from Mecha control board
,
CN 801 and
CN 803 from Switch & Volume board ass
' y
,
CN 871 from Mic
board ass ' y and CN 861 from H . Phone jack board ass
' y
.
Disconnect wire coming from the head mount ass ' y CN 811
at deck A and CN 815 at deck B .
Remove
two
screws © and remove the two GND wires
from Deck A and Deck B
.
Fig
.
2
-
2
A
nn
n
MAIN BOARD
From Mecho control
Boord
,
CNB 02
From Phone jock
board
6
-
From
SW 4 r VR board
-
From MIC board
SH 3
D
r
CN 815
/
T
.
From DECK
A
12
CN 86
y '
CN 8 Qy ^ ^ NS 71
CN 803
.
rom DECK 6
DECK B
Mecho control boord DECK
A
Fig
.
2
-
3
i
%
loch a '
control
board
Mocha
control
board
Motor
board
Motor
board
Cam
switch
board
/ Cam
switch
board
Motor board Mecho control board Motor board
\
/
\
DECK B DECK A
\
Cam switch
board Cam switch board
Fig .
2
-
4
( No
.
4358 ) 13