magazie 6cd
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Identify the Five Main sections of the IDC Unit.
IN DASH CHANGER UNIT - Module I
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IDC Module I: Identify the Five Main sections of the IDC Unit.
Complete in Dash Changer Unit
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The main sectionthat all other sub-
sections areattached to. Also
contains theHorizontal Rackthat controls the
function timing of
sub-sections.
Main Chassis
Horizontal Rack
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Accepts andtransfers thedisc into the
unit for
furtherprocessing.
Also housesthe Optical
DeckAssembly.
Upper chassis unit
IDC Module I: Identify the Five Main sections of the IDC Unit.
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Stores thedisc inside
the chassis
beforeretrievalinto theplay or
ejectionmode.
Stocker block
IDC Module I: Identify the Five Main sections of the IDC Unit.
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Optical pickup Unit The Optical pickupUnit contains theOptical Pickup, a
Laser Diode whichis highly sensitive
to ESD.
Be sure to observeESD precautions.
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The PCBcontains the
microprocessorchip that
controls thelogic functions.
The PCB is alsohighly sensitive
to ESD.
Printed Circuit Board
IDC Module I: Identify the Five Main sections of the IDC Unit.
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Upper
chassis unit PCB
Main Chassis
Opticalpickup unit
Stocker block
Five Major Deck Assemblies
IDC Module I: Identify the Five Main sections of the IDC Unit.
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Identify the Five Main sections of the IDC Unit.
IN DASH CHANGER UNIT - Module I
End Module I
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Proper Handling of the IDC Unit.
IN DASH CHANGER UNIT - Module 2
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IDC Module 2 : PROPER HANDLING of the IDC UNIT.
ESD Requirements
Be sure to wear awrist strap to avoiddamaging the unit
with ESD.
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IDC Module 2 : PROPER HANDLING of the IDC UNIT.
Example of a correct way to handle the unit.
Gripping the unit bythe top and bottom of
the chassis in thefront is the safest
way to handle theunit.
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IDC Module 2 : PROPER HANDLING of the IDC UNIT.
Example of an incorrect way to handle the unit
Do not grip the unit withyour fingers inside of the
stocker area .
The storage trays can bebent, misaligned and
dislocated.
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IDC Module 2 : PROPER HANDLING of the IDC UNIT.
Example of a correct way to handle the unit.
The PCB containsthe microprocessorand several other
ESD sensitive
integrated circuits.Contact with thePCB should beavoided while
handling the unit.
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IDC Module 2 : PROPER HANDLING of the IDC UNIT.
Just beneaththe LoadAssembly is the
Optical DeckUnit which
contains theOptical Pickup,a Laser Diodethat is highly
sensitive toESD.
Caution
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IDC Module 2 : PROPER HANDLING of the IDC UNIT.
Do NotHandle
OK to Handle Overview ofcorrect (green)and incorrect(red) handling
areas.
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Proper Handling of the IDC Unit.
IN DASH CHANGER UNIT - Module 2
End Module 2
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Removal and Re-installation of the Upper chassis unit
IN DASH CHANGER UNIT - Module 3
Part One
IDC M d l 3 R l d R I ll i f h U h i i
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Preliminaries
A. The CD always follows the same sequence in the deck.For example, it must travel to the stocker before going ontothe play position or ejection mode.
B. Not all disc handling is electromechanical. Some handlingis purely mechanical (no motors involved).
C. Manual operation of Horizontal Rack is the basis tochecking correct deck assembly.
D. Many gears have alignment points which aid in repairand confirming correct operation.
IDC M d l 3 R l d R I t ll ti f th U h i it
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Basic Overview of the Upper chassis unit
The Upper chassis unitaccepts and transfers thedisc into the stocker forstorage before retrieval
into the play position orthe ejection mode.
Location ofLoad Motor
Part One,2
IDC M d l 3 R l d R I t ll ti f th U h i it
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Basic Overview of the Upper chassis unit
The HorizontalMotor controls
the shutter door.
Location of
HorizontalMotor
Shutter Door
in openposition
Part One,3
IDC Module 3 : Removal and Re Installation of the Upper chassis unit
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Basic Overview of the Upper chassis unit
Push Lever #1 isspring loaded, not
motor driven.The discis pushed into the
stocker for storage,located in the right
rear of the unit.
Location of Push Lever #1
Direction of disc travel.
Part One,4
IDC Module 3 : Removal and Re Installation of the Upper chassis unit
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Basic Overview of the Upper chassis unit
Push Lever #2 isoperated by the
Horizontal Motor andmounts to the inside of
the Stocker AssemblyCover Plate.
Push direction
CD in play position
Location of Push Lever #2
Part One,5
IDC Module 3 : Removal and Re Installation of the Upper chassis unit
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Basic Overview of the Upper chassis unit
The Front andRear DiscGuides are
operated by the
Horizontal Motor.
Rear Disc Guides
Front Disc Guides
Part One,6
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit
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IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
Basic Overview of the Upper chassis unit
The Front andRear Disc
Guides clampthe disc and
lower it onto theOptical Deck
Spindle.
Optical Deck Spindle
End Part One
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Removal and Re-installation of the Upper chassis unit
IN DASH CHANGER UNIT - Module 3
Part Two
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit
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IDC Module 3 : Removal and Re Installation of the Upper chassis unit.
Removal of the Upper chassis unit
Deck must be inHome position
beforedisassembling.
Home position iswhere the
alignment pointson the HorizontalRack and MainChassis meet.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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IDC Module 3 : Removal and Re Installation of the Upper chassis unit.
Removal of the Upper chassis unit
Use a paper clipjig to hold
Horizontal Motorin place duringload assembly
removal. There isno displacement
in timing if work isperformed with a
paper clip insertedinto the alignment
holes.
Insert paper clip here
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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C odu e 3 e o a a d e sta at o o t e Uppe c ass s u t
Removal of the Upper chassis unit
Disconnect theLoading Motor
ribbon cable fromconnector CN301.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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pp
Removal of the Upper chassis unit
RIGHT SIDE BACK SIDE
A.Remove the two screws that secure the flex PCB tochassis.Carefully fold flex cable away from the chassis.
B. Remove the three screws and then lift off the side Chassis.Note that all three screws are the same size.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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pp
Removal of the Upper chassis unit
Remove thesingle screw that
connects thestocker cover
plate to the loadassembly on thetop side of the
chassis.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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Removal of the Upper chassis unit
Disconnect thehorizontal motor
cable fromconnector
CN402 on thebottom side ofthe chassis.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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Removal of the Upper chassis unit
Remove the two screws on the left side of the chassis.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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Removal of the Upper chassis unit
Remove the single screw from the shutter door side of thechassis. Note that this screw is shorter than the previous
two and must be replaced to the same location.
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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Removal of the Upper chassis unit
Separate the Upperchassis unit fromthe main chassis.
Unit is nowseparated into threesections:
1. Main Chassis
2. Upper chassisunit
3. Side Chassis
IN DASH CHANGER UNIT M d l 3
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Removal and Re-installation of the upper chassis unit
IN DASH CHANGER UNIT - Module 3
Part Three
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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Manually Checking Unit Functions.
Manual rotation ofthe horizontal gear
is the basis forchecking unit
function andcorrect deckassembly.
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Manually Checking Unit Functions.
While manuallyrotating the
horizontal gear,observe that the
Optical pickup unit
swings from itshome position, out
into the playposition.
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Manually Checking Unit Functions.
Whilemanually
rotating thehorizontal
gear, observethat the
stocker plateslower into the
chassis.
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Manually Checking Unit Functions.
Whilemanually
rotating thehorizontal
gear, observethat the RearDisc Guides
separate.
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Manually Checking Unit Functions.
Afterobserving unit
functions,return the
horizontalrack to the
homeposition.
IN DASH CHANGER UNIT Module 3
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Removal and Re-installation of the Upper chassis unit
IN DASH CHANGER UNIT - Module 3
Part Four
IDC Module 3 : Removal and Re-Installation of the Upper chassis unit.
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Reinstalling the Upper chassis unit
The procedure for reassemblingthe Upper chassis unit onto the
Main Chassis is basicallyperforming each of the previous
steps for removal in reverse order.
There are however, somepreliminary positioning
requirements that must be
observed before beginningreassembly.
Tips:A. Attach front of
load assemblyfirst.B. Make surehorizontal motorconnector cable
is out of the way.
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Reinstalling the Upper chassis unit.
The springloaded catch ofthe Lever GuidePlate Assembly
should be pulledcompletely backto allow the
Lever to drop toits lowest
possible position.
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Reinstalling the Upper chassis unit
The PushLever Plate of
the Upper
chassis unitmust connectover top of
Push Lever #2on the Main
Chassis .
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Reinstalling the Upper chassis unit
Push theeyelet of theGuide CamPlate away
from the frontof the LoadAssembly.
Load Assembly shown upside down.
Front
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Reinstalling the Upper chassis unit
The GuideCam Leveron the Main
Chassis must
be insertedinto the eyeletof the GuideCam Plate of
the LoadAssembly.
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Reinstalling the Upper chassis unit
Confirm that the Guide Cam Lever has been
inserted into the eyelet of the Guide Cam Plate byviewing through the opening just below the shutter
door on the front of the upper chassis unit.
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Confirming Proper Unit Operation.
After completing reinstallation, confirm proper operation ofthe unit by manually rotating the horizontal gear. Manual
operation should not require an excessive amount of force.Verify that:
A. The shutter door opens and closes.B. The optical deck swings into play position.C. The front and rear disc guides operate.D. The stocker assembly lowers into the chassis.
After confirming proper operation, return the horizontal rackto the home position.
IN DASH CHANGER UNIT - Module 4
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Removal and Reinstallation of the Stocker block
Part One
IN DASH CHANGER UNIT Module 4
The Upper chassis must be removed first.
IDC Module 4 : Removal and Reinstallation of the Stocker block
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Removal of the Stocker block
Before removing thethree cover plate
screws, be careful
not to lose the threethrust springs
positioned beneaththe cover plate.The
springs mount on topof the Cam Gear #1and Cam Gears #2.
Begin by setting the horizontal rack to the home position.
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Removal of the Stocker block
While lifting thecover plate,
carefully workthe Push Lever
#2 out from thestocker block
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Removal of the Stocker block
Separate the RearDisc Guide
Assembly from theMain Chassis.
Make note of thealignment points thatmate with the
stocker cover plateand the Main
Chassis.
Top View
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Removal of the Stocker block
A. Take care not to lose theblack cam gear ring as thestocker cover plate is lifted.
B. Disconnect the ribboncable from connector CN401.
C. Remove the single screwthat secures the stocker
switch PCB to the MainChassis.
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Removal of the Stocker block
The entirestocker blockcan now belifted off with
the fourstockersprings
remaining inplace.
IDC Module 4 : Removal and Reinstallation of the Stocker block
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Removal of the Stocker block
The PlasticCam Gears,five in all, willlift off with the
tray assembly,this is ok.
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Removal of the Stocker block
The MainChassis shownwith the Stockerblock removed.
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Removal of the Stocker block
The trays can now be separated by removing the fourstocker springs and lifting off each tray individually.
Note: The outer two stocker springs are stronger than theinner two springs. Make note of this for proper reassembly.
WEAKER
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Reinstalling the Stocker block
Part Two
Reinstalling the stocker block is likemaking a sandwich with six layers of
meats and cheeses.
IDC Module 4 : Removal and Reinstallation of the Stocker block.
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Reinstalling the Stocker block
The Double - Triple Decker!!
IDC Module 4 : Removal and Reinstallation of the Stocker block
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Reinstalling the Stocker block
Align theHorizontal
rack to homeposition.
The Stockerrack shouldalso be in
home positionat this point.
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Reinstalling the Stocker block
Replace all fiveof the CamGears onto theirrespective shafts
according to
their alignmentmarkings. Referto page 59 of theTechnical Guide
for moreinformation ongear alignment.
Cam Gears #3
Cam Gear #1
Cam Gears #2
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Reinstalling the Stocker block
Cam Gears #3
are alignedaccording to theposition of the
ELV gears at the
base of theshaft.
The ELV gearon the right side
uses a notch inthe main chassisfor alignment.
Cam Gears #3
IDC Module 4 : Removal and Reinstallation of the Stocker block
R i lli h S k bl k
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Reinstalling the Stocker block
A. Replace the blackcam gear ring onto Cam
Gear #1.
B. Check that there is
also a cam gear ringinserted into the top ofboth Cam Gears #2.
C. The Cam Gears #3
have no cam gear ring.
IDC Module 4 : Removal and Reinstallation of the Stocker block.
R i t lli th St k bl k
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Reinstalling the Stocker block
Connect theElevator MotorCable to the
Elevator Motorconnector on theSimplified In-dash
Control Jig.
IDC Module 4 : Removal and Reinstallation of the Stocker block
R i t lli th St k bl k
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Reinstalling the Stocker block
Set the voltage ofthe power supply to5 volts then turn the
power supply off.
Connect the black(negative) and thered (positive) wiresto the power supply
and then turn thepower supply on.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Place the bottomstocker tray housing
plate onto theguide shafts and
press the elevatordown switch on thecontrol jig. The plateshould then fall into
place.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Be sure that thespring tabs on thebottom housing
plate are pointingdownward. The
spring tabs on theupper plate shouldbe pointing upward
so that they will
retain the stockersprings when theyare reinstalled.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Prepare forinstalling the
trays bypositioning the
tab on CamGear #1 in an
inward direction.
IDC Module 4 : Removal and Reinstallation of the Stocker block.
Reinstalling the Stocker block
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Reinstalling the Stocker block
Ensure that theedges of the stocker
trays are facingupwards, then place
tray on the guideshafts and press the
elevator downswitch on the control
jig. Repeat this
procedure for eachtray.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Tip: It may help toapply a slight
pressure near theguide shaft holesin the trays as youpress the elevator
down switch on thecontrol jig.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Install the tophousing platewith the springtabs pointing
upwards.
Disconnect theelevator motorcable from the
control jig.
IDC Module 4 : Removal and Reinstallation of the Stocker block.
Reinstalling the Stocker block
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Replace the stocker springs onto the housing plates.
Remember: The outer two springs are stronger than theinner two springs..
WEAKER
Reinstalling the Stocker block
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Place the Rear DiscGuide Assembly ontothe Main Chassis.Make note of the
alignment points. The
shaft must be insertedinto the eyelet and thetab into the chassis.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Place the stocker assemblycover plate on top of the
stocker block. Be sure thatPush Lever #2 is inserted on
the inside of the stockerspring and that the Disc
Guide Assembly is matedwith the alignment points
underneath the stocker cover
plate on the top side of theunit.Top View
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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Reinstalling the Stocker block
Slightly lift thecover plate and
insert the stockerthrust springs ontop of the Cam
Gears #1 and #2.Partially tighteneach screw to
retain the springs
as the assemblycontinues.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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e sta g t e Stoc e b oc
Inspect theinstallation for
alignment.Finish tighteningthe cover plate
screws.Reconnect theelevator motor
cable to the
control jig.
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Reinstalling the Stocker block
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g
Operate the stocker assembly with the control jig to confirmthat all trays separate evenly.
Caution! Do not allow tab on stocker Cam Gear #1 to travelhigher than the top plate or lower than the bottom plate. This
will cause the stocker assembly to jam.
IDC Module 4 : Removal and Reinstallation of theStocker block
Reinstalling the Stocker block
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g
After confirming properoperation of the stockerblock , turn off the power
supply and disconnect thecontrol jig. Insert the
ribbon cable into CN401.Insert and tighten the
single screw that securesthe stocker switch PCB to
the chassis.
IDC Module 4 : Removal and Reinstallation of the Stocker block
Reinstalling the Stocker block
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g
Reinstall the Upper chassis unit (Module 3).
Confirm that all deck functions are working properly.
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Removal and Reinstallation of the Optical pickup unit
Part One
CD Load Assembly must be removed first.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit
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The Opticalpickup unitcontains the
Optical Pickup,a Laser Diode
which is highlysensitive to
ESD.
Be sure to
observe ESDprecautions.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit Cover the lens
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Cover the lensof the optical
pickup with apost-it notemaking sure
the adhesive is
not put directlyon the lens.This will protectthe lens fromany contact
duringhandling.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit
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Place a solder beadbetween the twoexposed conductorson the ribbon cable
that connects to
CN101.
Safety Alert!: Eyeprotection required
when soldering.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit
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Disconnectthe ribboncables
leading toconnectors
CN 101 andCN 501.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit
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Carefullyremove the tapethat secures theribbon cables to
the chassis.
Reserve thetape for
reapplication.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit
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Remove the
single screwthat secures theribbon cables to
the chassis.
Examine andmake note of
the foldingpattern of theribbon cables
for easierreinstallation.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removal of the Optical pickup unit
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To remove theOptical pick up unit ,
remove the twoscrews that securethe assembly to the
main chassis.Rotate the Opticalpickup unit play
position then slide
off of the swinglever shaft.
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Removal and Reinstallation of the Optical pickup unit
Part Two
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Disassembling the Optical pickup unit
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Remove theBalance spring
that connects thesuspension plate
to the swingchassis.
Some unitversions may
have two balancesprings.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Disassembling the Optical pickup unit
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On the underside of the assembly, turn the bearing bracketcounter clockwise to release the suspension plate.
LOCKED
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Disassembling the Optical pickup unit
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After rotating thebearing bracket
counterclockwise, slide
the suspensionplate to the left tounlock it beforeremoval but do
not remove it yet.
UNLOCKED
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Disassembling the Optical pickup unit
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Before removingthe suspensionchassis bottom
plate, make note ofthe specific location
of each damperspring. Although all
springs are thesame height, each
has a differenttension strength.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Removeh fi
Disassembling the Optical pickup unit
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the five
indicatedscrews.
Replace allscrews to
the exactlocation.Note the
exact routeof the
ribboncable.
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Disassembling the Optical pickup unit
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Next remove the screw from the gear bracket assembly.Then remove the screw from the traverse motor bracket.
Now the optical pickup can be separated from thesuspension chassis.
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Disassembling the Optical pickup unit
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Optical Pickup completely disassembled.
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Reassembling and Reinstalling the Optical pickup unit
Part Three
Reassembly and reinstallation of the optical deckbasically consists of performing each of the
previous steps in reverse order with the exceptionof some pre-positioning requirements.
(Refer to pages 48 ~ 56 of the Technical Guide formore information on reinstalling the Optical Deck.)
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Reassembling the Optical pickup unit
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Replace the screw to the traverse motor bracket then
replace the screw to the gear bracket.
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Reassembling the Optical pickup unit
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The optical pickup assy should be adjusted completelyinward on the feed screw before installing the bottom
suspension plate.
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Reassembling the Optical pickup unit
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When reinstalling the bottom suspension plate onto thesuspension chassis, ensure that the indicated tab of the
optical pickup is positioned between the two fingers onthe bottom suspension plate.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
R l
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Replace
each of thefive screws
to theirrespective
locationsand routethe ribboncable to its
originalpath.
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Reassembling the Optical pickup unit
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Check that the swing spring is in the correct position.
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Reassembling the Optical pickup unit
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Applying a small amount of alcohol to the insertion ports of
the three dampers will make insertion of the mating postseasier.
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Reassembling the Optical pickup unit
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On the underside of the assembly, turn the bearingbracket clockwise to lock the suspension plate.
LOCKED
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Reassembling the Optical pickup unit
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The optical pickup should now be adjusted to thecenter (home position) of the feed screw for the
remaining reassembly.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Reinstalling the Optical pickup unit
Wh th ti l
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When the optical
deck assembly isflipped over for
mounting to the mainchassis, the swing
lever shaft on themain chassis mustbe slid into the flute
of the swing chassis.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Reinstalling the Optical pickup unit
During mounting
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During mounting,
positioning theoptical pickup
assembly into playposition will make
insertion of the swinglever shaft into theflute of the swingchassis easier.
IDC Module 5 : Removal and Reinstallation of the Optical Deck Assembly
Reinstalling the Optical pickup unit
Once the swing lever
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Once the swing lever
shaft is properlyplaced, rotate the
optical pickupassembly into the
standby (home)position and install
the two supportscrews from the
bottom side of themain chassis.
R i t lli th O ti l i k it
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Reinstalling the Optical pickup unit
End Module Five
Reinstall the Upper chassis unit (Module 3) thenconfirm that all unit functions are working properly.