SA-AK230EE
A
A
A
A
CD Stereo System
SA-AK230EE
Colour
(S)... Silver Type
ORDER NO. MD0412605C3
Specifications
n AMPLIFIER SECTION
RMS output power
THD 10%, both channels driven
1 kHz, 100 W per channel (5 Ω)
Total RMS power 200 W
n FM/AM TUNER, TERMINALS SECTION
Preset station FM 15 stations
AM 15 stations
Frequency Modulation (FM)
Frequency range
87.50 - 108.00 MHz (50 kHz steps)
Sensitivity 1.8 µV (IHF)
S/N 26 dB 1.5 µV
ntenna terminal(s) 75 Ω (unbalanced)
mplitude Modulation (AM)
Frequency range 522 - 1629 kHz (9 kHz steps)
Sensitivity
S/N 20 dB (at 999 kHz) 560 µV/m
udio performance (Amplifier)
Input sensitivity/Input impedance
ux 250 mV,14.7 kΩ
Phone jack
Terminal Stereo, 3.5 mm jack
n CASSETTE DECK SECTION
Track system 4 track, 2 channel
Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100 kHz
Erasing system AC erase 100 kHz
Tape speed 4.8 cm/s
Overall frequency response (+3 dB, -6 dB at DECK OUT)
NORMAL 35 Hz - 14 kHz
S/N 50 dB (A weighted)
Wow and flutter 0.18 % (WRMS)
Fast forward and rewind time Approx. 120 seconds with
C-60 cassette tape
n DISC SECTION
Discs played [8 cm or 12 cm]
(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3 formatted discs)
(3) MP3
Bit rate
MP3 32 kbps - 320 kbps
Sampling frequency
MP3 32 kHz, 44.1 kHz, 48 kHz
CD 44.1 kHz
Decoding 16 bit linear
Digital filter 8fs
D/A converter MASH (1 bit DAC)
Pickup
© 2004 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
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SA-AK23 0EE
Wavelength 780 nm
Beam Source Semiconductor laser
udio output (Disc)
Number of channels 2(Stereo)(FL,FR)
n GENERAL
Power Supply AC 230 V, 50Hz
Power consumption 174 W
Power consumption in standby
mode
Dimensions (W x H x D) 250 x 330 x 341 mm
Mass 6.9 kg
0.7 W
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n SYSTEM
SC-AK230 (EE) Music center: SA-AK230 (EE)
Speaker: SB-AK230 (GC)
Notes:
1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
CONTENTS
Page Page
1 Before Repair and Adjustment
2 Protection Circuitry
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
4 Handling the Lead-free Solder
4.1. About lead free solder (PbF)
5 Handling Precautions For Traverse Deck
6 Precaution of Laser Diode
7 Accessories
8 Operation Procedures
9 Disassembly and Assembly of Main Component
9.1. Disassembly flow chart
9.2. Gear for servicing (jig) Information
9.3. Disassembly of Top Cabinet
9.4. Disassembly of CD Lid
9.5. Disassembly of Rear Panel
9.6. Disassembly of CD Mechanism Unit
9.7. Disassembly of Main P.C.B.
9.8. Disassembly of Power P.C.B.
9.9. Disassembly of Transformer P.C.B.
9.10. Disassembly of Front Panel Unit
9.11. Disassembly of Deck Mechanism Unit
9.12. CD Mechanism Main Component Replacement
Procedures
9.13. Replacement for the pinch roller ass 馳 and head block
9.14. Replacement for the Deck motor ass 馳, capstan belt A,
capstan belt B and winding belt
9.15. Replacement for the cassette lid ass 馳
9.16. Rectification for tape jam problem
10 Checking for major P.C.Bs
10.1. Checking of Main P.C.B.
10.2. Checking of Transformer P.C.B.
10.3. Checking of Panel, Deck & Deck Mechanism P.C.B.
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10.4. Checking of Power P.C.B.
11 Self-Diagnostic Function
11.1. Self-diagnostic display
11.2. How to enter the Self-Diagnostic Function
11.3. Cassette Mechanism Test (For error code H01, H02, H03,
F01)
11.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,
F30, H15 & H16)
11.5. To clear all Error code
11.6. To exit from Self-Diagnostic function
11.7. Power Amplifier Failure (F61)
11.8. Description of Error Code
12 CD Test Mode Function
12.1. How to set CD test mode
12.2. CD Automatically Adjustment result indication
12.3. CD Mecha Aging Test Mode (CR20)
12.4. Micon ROM Checksum and Version Display Mode
13 Measurements and Adjustments
13.1. Cassette Deck Section
13.2. Tuner Section
13.3. Alignment Points
14 Block Diagram
15 Voltage Measurement
16 Schematic Diagram
16.1. (A) CD Servo Circuit
16.2. (B) Main (Tuner) Circuit
16.3. (B) Main Circuit
16.4. (C) Panel Circuit
16.5. (D) Transformer Circuit, (E) CD Detect Circuit, (F) Spindle
Position Circuit & (G) CD Loading Circuit
16.6. (H) Power Circuit
16.7. (I) Deck Circuit & (J) Deck Mechanism Circuit
17 Printed Circuit Board
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SA-AK230EE
17.1. (A) CD Servo P.C.B. 73
17.2. (B) Main P.C.B.
17.3. (C) Panel P.C.B.
17.4. (D) Transformer P.C.B.
17.5. (E) CD Detect P.C.B., (F) Spindle Position P.C.B., (G) CD
Loading P.C.B.
17.6. (H) Power P.C.B.
17.7. (I) Deck P.C.B. & (J) Deck Mechanism P.C.B.
18 Wiring Connection Diagram
19 Illustration of IC 痴, Transistors and Diodes
20 Terminal Function of IC 痴
20.1. IC7002 (MN6627953HB) Servo processor/ Digital signal
processor/ Digital filter/ D/A converter
20.2. IC7003 (AN8739SBTE2) Focus coil/ Tracking coil/
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21 Troubleshooting Guide
Traverse motor/ Spindle motor drive
20.3. IC2801 (C2CBJG000565) System Microprocessor
22 Parts Location and Replacement Parts List
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22.1. Deck Mechanism (RAA4502-S)
22.2. CD Loading Mechanism (RD-DAC026-S)
22.3. Cabinet
22.4. Electrical Parts List
22.5. Packing Materials & Accessories Parts List
22.6. Packaging
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SA-AK23 0EE
1 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5820 and C5840 through a 10Ω, 5W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 230V, 50 Hz in NO SIGNAL mode (volume min at CD mode) should be ~ 350mA.
2 Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
· No sound is heard when the power is turned on.
· Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note :
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
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3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called
Electrostatica lly Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field- effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconduct or component or semiconduct or-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminium foil, to prevent electrostatic charge build up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti- static (ESD protected)” can
generate electrical charge to damage ES devices.
5. Do not use freon-propell ed chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or
comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize body motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
4 Handling the Lead-free Solder
4.1. About lead free solder (PbF)
Distinction of PbF P.C.B.:
P.C.B.s (manufacture d) using lead free solder will have a PbF stamp on the P.C.B.
Caution:
· Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please
use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 700 ± 20°F (370 ±
10°C).
· Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
· W hen soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until it melts enough.
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5 Handling Precautions For Traverse Deck
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of
clothes or human body.
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
· Handling of traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board).
3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish
the job in as short time as possible.
4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
Grounding for electrostatic breakdown prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity from your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the
sheet.
Caution :
The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the
traverse deck (optical pickup).
Caution when replacing the Traverse Deck
The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to
remove the solder from the short point before making connections.
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6 Precaution of Laser Diode
Caution :
This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens.
Wavelength : 780 nm
Maximum output radiation power from pick up : 100 µW/VDE
Laser radiation from pick up unit is safety level, but be sure the followings:
1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pick up lens for a long time.
ACHTUNG :
Dieses Produkt enthält eine Laserdiode. Im eingeschalte ten Zustand wird unsichtbare Laserstrahlun g von der Lasereinheit
abgestrahlt.
Wellenlänge : 780nm
Maximale Strahlungsle istung der Lasereinheit :100 µW/VDE
Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgende Punkte beachtet werden:
1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist.
2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.
3. Nicht mit optischen Instrumenten in die Fokussierlins e blicken.
4. Nicht über längere Zeit in die Fokussierlins e blicken.
SA-AK230EE
ADVARSEL: I dette a apparat anvendes laser.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
n Use of caution label
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7 Accessories
Remote Control
FM Antenna
AC Cord
AM Loop Antenna
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8 Operation Procedures
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9 Disassembly and Assembly of Main Component
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassemblin g and servicing.
1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main
components.
2. For reassembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
3. Select items from the following index when checks or replacement are required.
4. Refer to the Parts No. on the page of “Parts Location and Replacemen t Parts List” (Section 22), if necessary.
9.1. Disassembly flow chart
The following chart is the procedure for disassemblin g the casing and inside parts for internal inspection when carrying out the
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
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9.2. Gear for servicing (jig) Information
1. This unit has a gear which is used for checking items (Open/Close of disc tray, up/down operation of traverse unit by manually)
when servicing.
2. For preparation of gear (for servicing), perform the procedures as follows.
3. In case of re-servicing the same set, the “gear for servicing” may has been taken off because it has been used. The “gear for
servicing” must be stored.
· Remove the gear provided with mecha cover as shown below.
· Insert the hexagonal screwdriver (2mm) into the gear, and then project the tip of screwdriver for 1~ 2 mm in length.
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9.3. Disassembly of Top Cabinet
Step 1 Remove 2 screws at each side and 5 screws at rear
panel.
Step 2 Lift up both sides of the top cabinet, push the top
cabinet towards the rear and remove the top cabinet.
SA-AK230EE
9.4. Disassembly of CD Lid
(The CD changer unit can be removed after the CD Lid is removed)
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Opening the disc tray automatically (Using Power
Supply)
Step 1 Connect the AC power cord.
Step 2 Press the POWER button to power up the main unit.
Step 4 Release the 2 claws, and then remove the CD Lid.
Step 5 Press the OPEN/CLOSE button, the disc tray will close.
Step 3 Press the OPEN/CLOSE button, the disc tray will open
automatically .
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Step 6 Press the POWER button to turn the power off.
· [Opening the disc tray manually (Using service tools)]
Step 2 Release the 2 claws, and then remove the CD lid cover.
Step 1 Insert the gear tool into the hole on the underside of CD
chassis and then rotate in the direction of arrow. The disc tray
will be opened.
Step 3 Repeat Step 2 but rotate the gear tools in anti- clockwise
direction.
Step 4 The disc tray will be closed.
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9.5. Disassembly of Rear Panel
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
Step 1 Remove 7 screws and disconnect wire CN2810 (Fan) at
rear cabinet as shown.
SA-AK230EE
9.6. Disassembly of CD Mechanism Unit
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
Step 1 Remove one screw at rear panel.
Step 2 Detach the FFC wires (CN2801 & CN2805).
Step 4 Remove 4 screws.
Step 5 Remove the CD chassis.
Step 6 Lay the CD mechanism unit as shown.
· For disassembly of CD mechanism unit, please refer to
Section 9.12 of this manual.
Step 3 Release the claws of both ends, and then lift up the CD
Mechanism Unit.
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9.7. Disassembly of Main P.C.B.
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid
· Follow the (Step 1) of Item 9.5 - Disassembly of Rear Panel
· Follow the (Step 1) - (Step 3) of Item 9.6 - Disassembly of CD Mechanism Unit
Step 1 Disconnect FFC wires CN2803 & CN2806 from Main
P.C.B.
Step 2 Lift up Main P.C.B. by disconnecting connectors
CN5800 & CN5801 as arrow shown above.
9.8. Disassembly of Power P.C.B.
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid
· Follow the (Step 1) of Item 9.5 - Disassembly of Rear Panel
· Follow the (Step 1) - (Step 3) of Item 9.6 - Disassembly of CD Mechanism Unit
· Follow the (Step 1) - (Step 2) of Item 9.7 - Disassembly of Main P.C.B.
Step 1 Remove the 2 screws fixed at heat sink and 1 screw
fixed at Power P.C.B..
Note:
Insulate the Power P.C.B. with insulation material to avoid short
circuit.
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· Replacement of the Power Amplifier IC/ Voltage Regulator
Step 1 Remove 2 screws fixed to the Power Amplifier IC and 1
screw to Voltage Regulator.
Step 2 Break the joint with a metal cutter as shown below.
SA-AK230EE
Step 3 Unsolder the terminals of Power Amp IC, transistor and
replace the components.
Step 4 Fix back the cut portion with a screw as shown.
9.9. Disassembly of Transformer P.C.B.
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid
· Follow the (Step 1) of Item 9.5 - Disassembly of Rear Panel
· Follow the (Step 1) - (Step 3) of Item 9.6 - Disassembly of CD Mechanism Unit
Step 1 Remove 3 screws, disconnect connector CN5950.
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9.10. Disassembly of Front Panel Unit
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid
· Follow the (Step 1) - (Step 3) of Item 9.6 - Disassembly of CD Mechanism Unit
Step 1 Lay the unit as shown below.
Step 2 Release 2 claws at bottom and 2 claws each side, draw
the front panel ass’y forward.
Step 3 Remove volume knob.
· Disassembly of Panel P.C.B.
Step 4 Remove 10 screws.
Step 5 Disconnect connectors (CN2806, CN2803 and
CN5950).
9.11. Disassembly of Deck Mechanism Unit
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid
· Follow the (Step 1) - (Step 3) of Item 9.6 - Disassembly of CD Mechanism Unit
· Follow the (Step 1) - (Step 3) of Item 9.10 - Disassembly of Front Panel Unit
Step 1 Detach FFC wire (CN971).
Step 2 Disconnect FFC flat cable from the connector
(CN1001).
Step 3 Remove the 5 screws.
Step 4 Push the lever upward, and then open the cassette lid
ass’y (For DECK1 and DECK2).
Step 5 Tilt the cassette mechanism unit in the direction of
arrow (1), and then remove it in the direction of arrow (2).
· For replacement of Deck Mechanism P.C.B.
Step 6 Remove 3 screws.
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Step 7 Unsolder the motor terminals.
Step 8 Remove Deck Mechanism P.C.B.
9.12. CD Mechanism Main Component Replacement Procedures
· Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid
· Follow the (Step 1) - (Step 6) of Item 9.6 - Disassembly of CD Mechanism Unit
9.12.1. Replaceme nt of the Traverse Deck
SA-AK230EE
Step 1 Remove the CD changer unit.
Step 2 Insert the gear with hexagonal wrench into the hole.
Step 3 Rotate the hexagonal wrench in the direction of arrow
(clockwise), and then open the disc tray fully.
Step 4 With pressing the claw (A), rotate the hexagonal wrench
clockwise. (The slide plate R moves for a little amount.)
Step 5 Pressing the claw (B) in the direction of arrow (1), the
connection lever moves in the direction of arrow (2).
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Step 6 Lift up the traverse deck ass’y.
Step 7 Remove the traverse deck ass’y from the timing lever.
Caution:
When removing or inserting the traverse deck avoid touching
the OPU lens and pressing onto the turntable.
Step 10 Remove the FFC board from the connector, and then
remove the CD Servo P.C.B.
Step 11 Remove the pin.
Step 8 Remove 3 screws.
Step 9 Unsolder the motor terminals (4 points).
Step 12 Release the claw, and then remove the traverse deck
ass’y.
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Note:
Be careful not to lose the 3 floating spring because those will
also be removed on removal of the traverse deck ass’y.
· Installation of the CD Servo P.C.B. after replacement
Step 1 Connect the FFC board.
Step 2 Install the CD servo P.C.B. in the traverse deck ass’y.
Step 3 Remove 3 screws.
Step 4 Solder.
Step 1 Install the traverse deck ass’y to the timing lever.
Step 2 Align the boss of traverse deck ass’y with the slot of
traverse cam gear.
Step 3 Force the claw of timing lever.
· Note for installation of the CD servo P.C.B.
· Installation for traverse deck ass’y
Step 4 Force the disc tray fully.
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Step 5 With pressing the claw (B) in the direction of arrow (1),
force the connection lever in the direction of arrow (2).
9.12.2. Replacement for the Disc Tray
Step 1 Remove 4 screws.
Step 2 Remove the upper plate.
Step 3 Remove 3 screws.
Step 4 With lifting the claw in the direction of (1), draw the CD
Detect P.C.B. in the direction of arrow (2).
Step 5 Remove the mechanism cover.
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Step 6 Insert the gear with hexagonal wrench into the hole.
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Step 9 With forcing the left guide bar manually because the left
guide bar interfers with claw, draw the disc tray.
[Installation of the disc tray after replacement]
Step 7 Rotate the hexagonal wrench in the direction of arrow,
and then open the disc tray fully.
Step 8 Release the both claws, and then draw the disc tray.
Step 1 Slide the drive rack fully in the direction of arrow.
Step 2 Holding the drive rack not to move, install the disc tray.
Step 3 Align the drive rack with the drive gear.
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NOTE:
Force the right guide bar of tray base manually not to move
upwards.
Step 4 Holding the disc tray manually, push the disc tray in the
direction of the arrow.
9.12.3. Disassemb ly and reassembly for mechanism base drive unit
Step 1 Remove 3 screws.
Step 2 Release the claw, and then remove the gear holder.
Step 3 Remove the belt and change gear spring.
Step 5 Release the 2 claws, and then remove the bottom SW
P.C.B..
NOTE:
Take care not to lose the change gear spring.
Step 4 Remove the pulley gear, change gear and UP/DOWN
gear.
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Step 6 Install the tray lock spring to hook temporary.
Step 7 Release the claw, and then remove the tray lock.
Step 8 Release the claw, and then remove the rear lock.
Step 9 Pressing the claw (B) in the direction of arrow (1), force
the connection lever in the direction of arrow (2).
Step 10 Move the slide plate 1 to the end of stock side.
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Step 11 Lift up the left end of spindle base unit in the direction
of arrow (1), and then remove the unit in the direction of arrow
(2).
Step 13 Remove the traverse relay gear, traverse cam gear
and drive gear.
Step 12 Remove slide plate 1 and slide plate 2.
[Dissassembly/reassembly for the spindle base unit]
Step 1 Draw the 5 disc spacers.
Step 2 Pushing the claw, slide the support plate in the direction
of arrow, and then remove it.
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Step 3 Rotate the disc lever in the direction of arrow (1), draw
the disc lever.
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NOTE:
Hold the loading stopper ass’y manually bacause it is flipped by
spring.
NOTE:
Take care not to lose the disc lever spring.
Step 4 Release the 2 claws, and then draw the relay gear B.
Step 5 Release the 2 claws as shown below.
Step 6 Remove the cushion spring.
Step 7 Remove the loading stopper ass’y in the direction of
arrow.
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Step 8 Release the 2 claws, and then remove the relay gear A.
Step 9 Release the 2 claws, and then remove the spindle shaft.
Step 10 Remove the lower spindle spring with tweezers.
Step 11 Force the lower hook with thin tip of minus screwdriver.
Step 12 Squeeze the shaft of lower hook, and then draw it.
Step 13 Rotate the lower spindle in the direction of arrow until
the lower spindle interferes with stopper.
Step 14 Insert the thin tip of minus screwdriver between the
lower spindle and UP/DOWN base, and then slacken the lower
spindle to release the stopper. Then, rotate the lower spindle
and remove it.
Step 15 Rotate the UP/DOWN base at a 90° angle. Then,
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spread the hold bars of loading stopper and remove the
UP/DOWN base.
[Installation for loading stopper ass’y]
Step 1 Align the claw of loading stoppers ass’y with the slot of
spindle base. (Caution should be exercised when alignment of
claw due to the size of claws.)
Step 2 Lower the loading stopper ass’y, and then align the
lower spindle with the trapezoid tooth of relay gear A.
Step 1 Install the traverse cam gear.
Step 2 Rotate the traverse cam gear to the direction of arrow.
Step 3 Install the drive gear and traverse relay gear.
Step 3 Force the loading stopper ass’y, latch the claw firmly.
[Reassembly for mechanism base drive unit]
*When installing the traverse relay gear, align the trapezoid
tooth of gear with tooth of traverse cam gear.
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Step 4 Install the slide plate 2 to the mechanism base, and
then match to the connection lever.
Step 5 Install the slide plate 1 to the mechanism base, and
then match to the connection leve and align the trapezoid tooth
of traverse relay gear with the slide plate 1.
Step 6 Install the spindle base unit. (First, slide plate 1.)
Step 7 Move the slide plate 1 to forward fully.
Step 8 Install the rear lock. (The claw should be latched.)
Step 9 Install the Spindle Position P.C.B.. (The claw should be
latched.)
Step 10 Install the tray lock. (The claw should be latched.)
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