Clarion VRX815, Service Manual

Page: 13 / 38

VRX815
VRX815P
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How to release the LCD module
1. Remove the screws(No.Ax2) and the springs(No.Bx2).
2. Remove the screws(No.Cx2,Dx2,Ex4) and release the
flexible PWB(No.F).
3. Release the lower case with CD mechanism(No.G).
4. Remove the screws(No.Hx8,Ix6) and release the
escutchen(No.J).
5. Pull out the LCD module(with switch ass'y) and release
32P/8P/4P connectors.
A
B
A
B
C
D
D
E
E
F
G
H
H
H
H
I
I
J
■
948-0629-00 CD mechanism
How to disassemble and reassemble
How to prevent electrostatic breakdown of optical pickup
(Figure A-1)
※
Remove the FPC at the optical pickup from the PWB,
then short circuit the pin 4 and pin 5 of the FPC using a
conductive clip such as a short pin.
※
When assembling, remove the conductive clip (short pin)
that has been used to short circuit the pin 4 and pin 5 of
the FPC, then immediately connect the FPC to the con-
nector (CN1).
※
Use a soldering iron that is dead-grounded or has insu-
lation resistance of 10M
Ω
or over (DC500 V) when mea-
sured 5 minutes after being powered.
※
Be sure to use a copper sheet or a conductive sheet (1
G
Ω
or less) on the work bench and ground it.
※
To discharge static electricity that has charged on the
technician's body, make sure that he/she wears a ground-
ing band that is grounded (100 M
Ω
or less). Also, avoid
any contact between the technician's clothes and the
optical pickup as the grounding band does not discharge
static electricity that has charged on them.
How to remove PWB (Figures A and B)
1. Disconnect the FPC from connectors CN1, CN3, and
CN5. Short circuit the pin 4 and pin 5 of the FPC at the
optical pickup using a conductive clip such as a short
pin.
2. Disconnect the 2P connector. (Figure A)
3. Remove screw No.7. (Figure A)
4. Lift the PWB in the direction indicated with the arrow
(1),then remove the rib. Pull the PWB in the direction
indicated with the arrow (2),then remove the PWB from
the pawl. (Figure B)
5. While paying attention not to damage the FPC, remove
the PWB.
C N 5
C N 3
C N 1
F P C
F P C
F P C
2 P c o n n e c t o r
N o . 7
p i n 4
p i n 5
F i g u r e A
( a t o p t i c a l
p i c k u p )
F i g u r e A - 1
( a t o p t i c a l p i c k u p )
C o n d u c t i v e c l i p
S W 2
O K N G
P W B
( 2 )
( 1 )
F i g u r e B
p a w l
R i b
p i c k u p
N o t e s f o r R e a s s e m b l i n g
M a k e s u r e t h a t t h e b o s s o f t h e P W
B s w i t c h
( S W 2 ) d o e s n o t c o m e o n t o t h e o p t i c a l p i c k u p .
Removal of optical pickup (Figures C,D and E)
1. Disconnect the lead cable from the hook. (Figure C)
2. Remove screw No.48. (Figure C)
3. Remove parts No.4 and 50. (Figure D)
4. Lift the lead screw and disconnect it. (Figure E)
5. Remove the optical pickup. (Figure E)
6. Remove screw No.19, then remove holder No.7. (Figure
E)
7. Remove the lead screw from the optical pickup. (Figure
E)
N o . 4 8
F i g u r e C
H o o k
L e a d
c a b l e