Pioneer cx 633 service manual
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Page 1
GD PIONEER"
The A11 of Entertainment
Service
Manua
CRT1658
CD MECHANISM UNIT
(BX-633
[flfigfifi
DIGITAL AUDIO
O This service manual describes operation of the CD mechanism incroporated in models listed in the
table below.
0 When performing repairs use this manual together with the specific manual for model under repair.
Model Service Manual CD Mechanism Unit
CDX-P1210/UC,EW,ES CRT1659 CXK4100
CONTENTS
1. DISASSEMBLY .......................................................... 2
2. MECHANISM DESCRIPTION .................................... 5
PIONEER ELECTRONIC CORPORATION 4.1, Meguro 1-Chome. Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC ROBOX 1760, Long Beach, California 90801 USA
PIONEER ELECTRONICS OF CANADA, INC. 300 Alistae Parkway Markham, Ontario L3H 0P2 Canada
PIONEER ELECTRONIC IEUROPE] N.V. Haven 1087 Keetberglaan I, 9120 Melsele, Belgium
PIONEER ELECTRONICS AUSTRALIA PWLTD. 178484 Boundary Road, Braeside, Victoria 3195, Australia TELZI03I580-991I
© PIONEER ELECTRONIC CORPORATION 1995 K_F F s.J AN. 1955 Printed in Japan
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Page 2
(BX-333
1. DISASSEMBLY
. PU Unit Removal
When removing the connector to the PU unit, attach
a short pin from the PU unit to the flexible circuit
board.
Short Pin
Fig.1
1. Remove the flexible circuit board from the connector.
2. Stretch the spring and hook it on the protrusion.
3. Undo the screw and remove the spring A.
NOTE: When assembling the PU unit, assemble so that
section A clamps the shaft.
/ Spring A
Flexible Circuit
Board
PU Unif
Fig.2
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O Carriage Motor Assy Removal
1. Remove the screw, spring, belt, screw unit, and then
remove the carriage motor assy.
Screw Unit
Carriage
Motor Assy
Fig.3
C Spindle Motor Removal
1. Undo the seven screws A, and then remove the
frame and arm.
2. Undo the six screws B, and then remove the side
frame.
3. Run the tray motor to and set the carriage
mechanism to play (carriage mechanism lock is
released).
When assembling the arm
Fig.4
NOTE:
When assembling the frame, place the gear shaft with
the arrow mark in the chassis, and align the A mark of
the steering to the A of the gear B.
To assemble the arm, stand it upright and place it in the
installation hole of the stage. Push it down towards the
right and place the other end in the hole of the frame.