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.
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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.
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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.
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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
·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
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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.
SA-AK230EE
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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Step 13 Install the gear holder, and then tighten the screw (a).
Step 11 Remove the tray lock spring from hook,and then latch
to the tray lock.
Step 12 Install the UP/DOWN gear, change gear, change gear
spring, pulley gear and belt in the order of (1) - (5).
Step 14 Install the tray base, traverse ass’y, mechanism cover
and upper plate.
[Operation check after servicing]
Check the proper operation of following items with gear and
hexagonal screwdriver.
1. Open/close of tray base.
2. Moving the tray base to the stock side.
3. UP/DOWN operation of spindle base unit.
4. UP/DOWN operation of traverse ass’y.
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9.12.4. Replacement for the motor ass’y
Step 1 Install the belt temporarily.
NOTE:
Take care not apply the grease to the belt.
Step 2 Upset the CD loading unit.
Step 3 Remove 3 screws.
P.C.B.
Step 7 Release the claw (B), and then remove the motor ass’y.
[Notice for motor ass’y installation]
1. Locate the name plate of motor to the traverse ass’y.
2. Align the hole of motor with the ribs.
Step 4 Unsolder the plunger terminals (2 points).
Step 5 Unsolder the motor terminals (2 points).
Step 6 Release the 2 claws (A), and then remove the Motor
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9.13. Replacement for the pinch roller ass’y and head block
·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
·Follow the (Step 1) - (Step 5) of Item 9.11 - Disassembly of Deck Mechanism Unit
* The mechanism as shown below is for DECK1. For DECK
2, perform the same procedures.
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Step 1 Release the 2 claws, and then remove the pinch roller
(R), (F).
Step 2 Release the 2 claws, and then remove the head
connector.
Step 3 Remove 2 screws.
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9.14. Replacement for the Deck motor ass’y, capstan belt A, capstan belt B
and winding belt
·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
·Follow the (Step 1) - (Step 5) of Item 9.11 - Disassembly of Deck Mechanism Unit
Step 1 Release the 2 claws, and then remove the head
connector.
Step 2 De-solder plunger point.
Step 3 Remove the Deck Mechanism P.C.B.
Step 4 Remove 3 screws.
Step 5 Remove the flywheel R.
Step 6 Release the claw of tape side, and then remove the
winding lever and spring.
Step 7 Remove the flywheel F.
[Installation of the belt]
Step 1 The boss and marking should be positioned
horizontally.
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Step 2 Put the winding belt on the pulley temporarily.
Step 3 Install the flywheel F.
Step 4 Put the winding belt on the flywheel F.
Step 5 Install the winding lever and spring while pressing the
winding arm in the direction of arrow.
Step 6 Install the flywheel R.
Step 7 Put the capstan belt A temporarily as shown below.
Step 8 Put the capstan belt B on the motor ass’y pulley.
Step 9 Install the sub chassis to the mechanism, and then
tighten screws.
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Step 10 Remove 3 screws.
Step 11 Put the capstan belt B as shown below.
Step 12 Put the capstan belt A on the motor ass’y pulley.
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9.15. Replacement for the cassette lid ass’y
·Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
Step 1 Lift up the lever upward, open the cassette lid ass’y.
(For DECK1 and DECK2)
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Step 2 Push up the cassette lid ass’y in the direction of arrow.
(For DECK1 and DECK2).
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9.16. Rectification for tape jam problem
·Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet
Step 1 If a cassette tape cannot be removed from the deck (the
tape is caught by the capstan or pinch roller during playback or
recording), rotate the flywheel F in the direction of the arrow to
remove it.
Step 2 Push the lever upward and open the cassette lid ass’y.
Remove the cassette tape.
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10 Checking for major P.C.Bs
Note:
Checking of all major P.C.Bs (Main P.C.B., Panel P.C.B., Transformer P.C.B., Deck P.C.B., Deck Mechanism P.C.B. and Power
P.C.B.) can be carried out using below procedures.
For the disassemblin g procedures, refer to Section 9.
10.1. Checking of Main P.C.B.
1. Remove Top Cabinet and Rear Panel.
2. Remove CD Lid.
3. Disassemble CD Mechanism Unit.
4. Connect FFC wires (CN2801 & CN2805) from CD Mechanism Unit.
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10.2. Checking of Transformer P.C.B.
1. Remove Top Cabinet and Rear Panel.
2. Remove CD Lid.
3. Disassemble CD Mechanism Unit.
4. Connect FFC wires (CN2801 & CN2805) from CD Mechanism Unit.
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10.3. Checking of Panel, Deck & Deck Mechanism P.C.B.
1. Remove Top Cabinet.
2. Remove CD Lid.
3. Disassemble CD Mechanism Unit.
4. Remove volume knob at Front Panel Unit.
5. Disassemble Panel P.C.B.
6. Disassemble Deck Mechanism Unit.
7. Use the extension cable (A) to reconnect (CN1001) Deck P.C.B. and (CN2803) Main P.C.B.
8. Use the extension cable (B) to reconnect (CP6401) Panel P.C.B. and (CN971) Deck Mechanism P.C.B.
8OPEN SW abnormalH15Refer to section 11.8.4 (Mechanism Error Code Table) [M-01] error is
9CLOSE S W abnormalH16Refer to section 11.8.4 (Mechanism Error Code Table) [M-01] error is
10DISC SENSORF30Refer to section 11.8.4 (Mechanism Error Code Table) [M-01] error is
F26Under normal operation (Self-Diagnostic Mode inclusive), this error occurs
occurs when the REST SW ON is not detected within the specified time
and shall be memorized.
when the selection is set to CD and SENSE=’H’ is detected and
SENSE=’L’ is not detected within a fail safe time (20ms) after system
command transmission was sent.
detected.
detected.
is detected.
is detected.
is detected.
detected.
detected.
detected.
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11.8.3. Power supply related error detection
No.Abnormal ItemsError Display Method of Detection
1POWER AMP output abnormalF61During normal operation, if DCDET becomes ‘L’, normal POWER OFF
process shall not be executed, PCNT shall be switched to ‘L’
immediately. GOODBYE shall not be displayed and the error display F61
will be displayed instead.
2 seconds after the F61 display, ECONO shall be set to ‘L’ and FL
display shall be turned off.
The error content shall be memorized when the abnormality occurs and
can be displayed in the C-mecha self-diagnostic mode described later.
11.8.4. Error Code (CR20 Mechansim)
1. If mechanism problem occurs during normal or aging mode, the error code is “remembered ” and shown on the FL display.
2. Reset Condition of Error Code
a. During cold start of micro-processor IC.
b. Restart of aging mode for the mechanism unit.
3. Mechanism Error Code
Mechansim Error Code Table
Error CodeDescription
M-00No Error
M-01OPEN Position - Horizontal Motion Abnormality at play position
M-02PLAY Position - Horizontal Motion Abnormality at stock position
M-03PLAY Position - Horizontal Motion Abnormality during changing
M-04CHANGE Position - Horizontal Error of Stock position
M-05CHANGE Position - Ascending motion Error
M-06CHANGE Position - Descending motion Error
M-07STOCK Position - Ascending motion Error
M-08STOCK Position - Descending motion Error
M-09Abnormality during change position (bottom switch)
M-0AClamp Error
M-0BAccess Failure - Access Time of more tha 30 secs (Total time
position
of automatic → Read TOC → Track access)
4. When the mechanism unit stops due to error during aging model, error code is remembered and counts of the errors are
displayed on the FL display.
45
Page 46
SA-AK23 0EE
12 CD Test Mode Function
This CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operate CD
PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.
12.1. How to set CD test mode
12.2. CD Automatically Adjustment result indication
Under CD test mode, pressing the numeric key ‘0’ on the remote controller will display the auto adjustment result. FLOCK, TLOCK
and CLVS status shall be shown as below:
During the above display, executing CD PLAY will display auto adjustment result for CD PLAY mode.
12.3. CD Mecha Aging Test Mode (CR20)
1. Functional summary of CD aging test mode
It is for the purpose to determine the reliability of the CD changer.
2. To enter into CD aging test mode
a) First, enter into self-diagnost ic mode (Refer to Section 11.2. How to enter the Self-Diagnos tic Function)
b) In the self-diagnost ic mode, switch the SELECTOR to
When in CD aging test mode, the following operation will begin and repeated:
1. [DISC STOCKER] → DISC LOAD → TRAY OPEN (2 secs) → TRAY CLOSE] as one count.
· W hile performing the above operation, the FL display will show the number of its operations starting from 00001. With
reference to figure as below.
and press. It will enter into CD aging test mode.
46
Page 47
·It shall move up one counter when the above operations ends. The counter will reset to 00000 when 99999 is reached.
·To exit CD aging test mode, press
button, the tray will return to its PLAY position and power will be off.
12.4. Micon ROM Checksum and Version Display Mode
1. Functional Summary
Display version number and calculated checksum of the micon software.
2. To enter into Micon ROM checksum and Version Display Mode.
a. Enter into Self-Diagnos tic Mode (Refer to Section 11.2).
b. In the Self-Diagnos tic Mode, Press
The version number and the calculated ROM Checksum of the current software will be displayed on the FL as shown in this
example:
twice.
SA-AK230EE
* Note: The Software Version No. & Micon Software Checksum differs from set to set.
·The ROM Checksum is calculated on demand, not hard coded.
·The ROM Checksum is calculated by talking the arithmetic SUM of the ROM contents form the program’s START
address until the END address.
START address = [1080]H
END address = [FFFD]H
47
Page 48
SA-AK23 0EE
13 Measurements and Adjustments
13.1. Cassette Deck Section
·Measurement Condition
−
− Make sure head, capstan and press roller are clean.
− −
−
− Judgeable room temperature 20 ± 5 °C (68 ± 9°F)
− −
·Measuring instrument
−
− EVM (DC Electronic voltmeter)
− −
−
− Digital frequency counter
− −
·Test Tape
−
− Tape speed gain adjustment (3 kHz, -10 dB);
− −
QZZCWAT
13.1.1. Tape Speed Adjustment (Deck 1/2)
1. Set the tape edit button to “NORMAL” position.
2. Insert the test tape (QZZCWAT) to DECK 2 and playback
(FWD side) the middle portion of it.
3. Adjust Motor VR (DECK 2) for the output value shown
below.
Adjustment target: 2940 ~ 3060 Hz (NORMAL speed)
4. After alignment, assure that the output frequency of the
DECK 1 FWD are within ±60 Hz of the value of the output
frequency of DECK 2 FWD.
standard value.
Bias voltage for Deck 214±4mV (Normal)
Erase voltage for Deck 280mV (Normal)
Fig.2
Fig.3
13.1.3. Bias Frequency Adjustment (Deck
1/2)
1. Set the unit to “AUX” position.
2. Insert the Normal blank tape (QZZCRA) into DECK 2 and
set the unit to “REC” mode (l use “REC/STOP” key).
3. Adjust L1002 so that the output frequency is within the
standard value.
Standard Value: 97 ±8 kHz
Fig.1
13.1.2. Bias and Erase Voltage Check
1. Set the unit “AUX” position.
2. Insert the Normal blank tape (QZZCRA) into DECK 2 and
the unit to “REC” mode (use “l REC/STOP” key).
3. Measure and make sure that the output is within the
13.2. Tuner Section
13.2.1. AM-IF Alignment
1. Connect the instrument as shown in Fig.5.
2. Set the unit to AM mode.
3. Apply signal as shown in Fig. 5 from AM-SG.
4. Adjust Z2602 so that the output frequency is maximized in
Fig. 6.
Fig.4
48
Fig.5
Page 49
Fig.6
13.2.2. AM RF Adjustment
1. Connect the instrument as shown in Fig. 7.
2. Set the unit to AM mode.
3. Set AM-SG to 520kHz.
4. Receive 520kHz in the unit.
5. Adjust Z2602 (OSC) so that the EVM-AC is maximized.
6. Set AM-SG to 600Hz.
7. Receive 600Hz in the unit.
8. Adjust Z2602 (ANT) so that the EVM-SG is maximized.
SA-AK230EE
9. Set AM-SG to 520kHz.
10. Receive 520kHz in the unit.
11. Adjust L2602 (OSC) so that the EVM-DC value is with
1.1±0.5V.
Fig.7
13.3. Alignment Points
13.3.1. Cassette Deck Section
13.3.2. Tuner Section
49
Page 50
SA-AK23 0EE
14 Block Diagram
OPTICAL PICKUP
SEMICONDUCTOR
LASER
B
PHOTO DETECTOR
A
B
B
B
F
Q7601
LASER
POWER DRIVE
B
LPD
LD
A
C
B
D
F
B
E
B
FOCUS COIL
TRACKING COIL
E
IC7003
AN8739SBTE2
FOCUS COIL/TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
/RST
1
RESET
SIGNAL
GENERATOR
F-
F+
T-
T+
M7301
TRAVERSE
MOTOR
M7302
SPINDLE
MOTOR
M
M
D4+
17
16
D4-
18
NC
15
D3+
D3-
14
11
D1+
D1-
10
D2+
13
D2-
12
FOCUS
COIL
DRIVE
TRACKING
COIL
DRIVE
TRAVERSE
MOTOR
DRIVE
SPINDLE
MOTOR
DRIVE
IN4
23
24
IN3
6
IN1
2
NC
3
IN2
5
NC
FOP
TRP
TRVP
SPOUT
50
MUTE
[CH2]
4
PC2
SPPOL
Page 51
SA-AK230EE
TO MAIN BLOCK
A
MLD
STAT
MCLK
MDATA
B
BLKCK
CD_RST
A, B, C, D, E, F
LD
LPD
SPPOL
SPOUT
TRVP
TRP
FOP
X7201
CPU
FS
64
MDATA
OUTL50OUTR
CD SIGNAL
RCH
44
46
45
IREF
ARFIN
DSL/PLL/VCO
EFM DEMODULATION
SYNC INTERPOLATION
CIRC ECC
CDROM ECC
BUS CONTROL UNIT
SERIAL OUTPUT
INTERFACE
DSLF
(SRDATIN)
47
PLLF
CIRC RAM
(BCLKIN)
48
PLLF0
(LRCKIN)
SUBCODE
INTERFACE
REGULATOR
17, 55,
69
65
63
(SMCK)
INTERFACE
DIGITAL
OUT
61
INPUT
PORT
TX
(PMCK)
66
RF
MLD
STAT
MICRO COMPUTER
INTERFACE
DIGITAL FILTER
1 BIT DAC
PWM LOGIC
ANALOG
LOWPASS FILTER
AVSS1
53
51
MCLK
SPINDLE
SERVO
SERVO
MP3/WMA
DECODER
CONVERTER
AVDD1
54
B
71
70
X1
TIMING GENERATOR
RF
AMPLIFIER
A/D
OUTPUT
PORT
X2
60
NTEST
B
59
IOMODE
68
NRST
37
RFVDD
B
27
VREF
B
30~35
A,B,C,D,E,F
CEA
FILTER
21
29
LD
28
PD
36
DCDET
41
CAGC
ARF
39
RFOUT
RFIN
40
FEN
24
TEN
25
FEOUT
23
26
TEOUT
22
RFENV
18
ADPVCC
FEIN
20
TEIN
19
22
RFENV
PWMSEL
4
6
SPPOL
5
SPOUT
7
TRVP
TRVM
8
TRVP2
9
TRVM2
10
TRP
11
TRM
12
FOP
13
FOM
14
IC7002
MN6627953HB
SERVO PROCESSOR
DIGITAL SIGNAL
PROCESSOR/
DIGITAL FILTER/
D/A CONVERTER
CONVERTER
B
B
B
B
B
B
43
1 MBIT
SRAM
DVSS1~3
16, 57
AVSS2
49
AVDD2
DVDD1,2
B
(TXNCLDCK)
(SRDATA)
15, 56,
72
TXTCK
TXTD
DQSY
(SBCK)
(SUBC)
FLAG
BLKCK
EXT0
EXT1
EXT2
GIO0
GIO1
GIO2
PORT
(LRCK)
(BCLK)
LON
(DVDD2)
IOVDD1~3
B
75
74
73
62
67
1
2
3
76
77
78
51
Page 52
SA-AK23 0EE
FM ANT
ENV17290G1Y
RF AMP
17
5
6
(FM)
MIXER
BUFFER
OSC
8
B
CF2601CF2602
Q2601
FM
IF AMP
IC2601
LA1833NMNTLM
FM/AM IF AMP,
DET/AM OSC,
MIX/FM MPX
24
LEVEL
DET
FM
1
BUFFER
IF
AM ANT
L2601
D2602
L2602
B
RCH
2221
23
ALC
AM
AM
OSC
MIX
S-CURVE
AM/FM
FM
BUFFER
DET
REG
2
4
3
19
20
IF
5
AM
RM AMP
AM
IF
AGC
COMP
TUNING
DRIVE
SD
6
18
DET
7
13
17
16
AM
ST
REG
910
8
15
PHASE
DET
VCO
FF FF
14
DECODER
STEREO
SWITCH
11
PILOT
CANCEL
PILOT
FF
DET
12
B
Z2602
AM
IFT
X2602
ST/DO
SD
16
17
18
15
B
B
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
11
UNIVERSAL
COUNTER
POWER ON
RESET
19
Q2606
TUNER
15V
SUPPLY
SWITCH
B
(FM)
REFERENCE
DIVIDER
SWALLOW COUNTER
1/6,1/17,4 BITS
12 BITS PROGRAMMABLE
SHIFT REGISTER LATCH
10
7
1
2
DIVIDER
6
9
IC2602
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
C2B
I/F
8
1
X2603
20
14
12
13
5
DO
CE
2
3
DI
4
CL
ST/DO
PLLDA
PLLCLK
CE
B
A
TO
CD DRIVE
BLOCK
52
Page 53
SA-AK230EE
PLLDA
STAT
ST/DO
PLLCLK
BLKCK
CD_RST
SD
MLD
MDATA
MCLK
CE
Q2906
SWITCH
79
80
81
3
MLD
MDATA
MCLK
PLLCE
Q2907
SWITCH
22
FL6601
FL DISPLAY
21, 23, 24,
11~14, 16~29
SCK
9
FL13
8
26~40
~RESET
FL30
~CS
SDATA
10
3
IC6601
C0HBB0000044
FL DRIVER
IC1
C0GAM0000005
MOTOR DRIVE
5
IN1
6
IN2
VREF
4
REG
VCC
7
3, 5~10, 12, 13,
15, 16, 18, 19
1, 2, 30~40
FL0
FL12
XOUT
XIN
6
5
8
VS
OUT1
2
10
OUT2
GND
1
B
Q2936
CD
MOTOR
B
SUPPLY
SWITCH
Q2937
PLUNGER
MOTOR
SUPPLY
CONTROL
SWITCH
30
19
CD_RST
BLKCK
PLLCK
21
78
29
ST/DO
PLLDA
STATUS
RDS_CLK
72
71
74
FL_CLK
RDS_DAT
FL_RESET
77
SD
73
FL_CS
FL_DOUT
C2CBJG000565
84
85
CHG_CW
CHG_CCW
IC2801
88
CHG_PLR
MICROPROCESSOR
83
CHG_HLF
B
Q1
POWER
SUPPLY
CONTROL
B
FROM POWER
TRANSFORMER
M
RM1
D1
SW5
LOCK
D2
B
SW4
PUSH
PUSH
OPEN
CD
89
90
86
87
CHG_AD1
CHG_AD2
CHG_SW1
CHG_SW2
SW2
SW1
SW3
S7201
82
/RESTSW
V_JOG_A
67
68
VR6491
JOG VOL
V_JOG_B
X_IN
15
X2802
X_OUT
13
10
XC_IN
X2801
11
XC_OUT
SSEQ_LED
76
D6457
B
Q6457
LED
DRIVE
RMT
18
Z6481
REMOTESENSOR
53
Page 54
SA-AK23 0EE
(DECK 1)
P.B. HEAD
(DECK 2)
R/P HEAD
LCH
LCH
4
2
IC1004
C1AA00000612
R/P SELECT
(DECK 2)
ERASE HEAD
3
5
Q1003
SWITCHING
(BEAT PROOF/
RECH)
IC1001
AN7348S-E1
P.B EQ/REC AMP/
ALC/TPS AMP
24(23)
1(2)
22(3)
21(4)
17(8)
6
19
15
12
L1002
LOGIC L/H
ALC
NOR/CrO &
HI/LO LOGIC
LOGIC
REC/PB
9
B
RIPPLE
REJECTION
11
BIAS OSC
CONTROL
Q1004, Q1005,
Q1007
20(5)
18(7)
10
16
14
13
Q2978
REC:ON/OFF
CONTROL/
SWITCH
S951 MODE
53
52
MODE_1
HALF
S952
HALF_1
IC951
CNB13030R2AU
PHOTO
INTERRUPTER
97
PHOTO_1
Q1017
MOTOR
SWITCH
M1002
HALF
S972
Z971
INTERFACE
91
M
DECK2
S971 MODE
S975 RECINH_F
C2CBJG000565
Q2980
REC:
ON/OFF
CONTROL
B
IC971
CNB13030R2AU
PHOTO
INTERRUPTER
Q6415, Q6425
PLUNGER
SUPPLY SWITCH/
PLUNGER:ON/OFF
SWITCH
95
PHOTO_2
IC2801
58
MTR
MICROPROCESSOR
60
59
REC
DECK1_H
56
PLG1
D951
Q6411, Q6421
PLUNGER
SUPPLY SWITCH/
PLUNGER:ON/OFF
SWITCH
57
PLG2
D971
54
Page 55
SA-AK230EE
JK2801
AUX
CD SIGNAL
32(31)
13(14)
9(10)
7(8)
B1(2)
22(21)
OUT1(2)
5(6)
A1(2)
2(4)
SEL1(2)
REC1(2)
E1(2)
C1(2)
IC2803
C1BB00000732
AUDIO SOUND
PROCESSOR
SI
SC
17
18
Q2571
MUTING
SWITCH
IC2804
C0AABA000009
DUAL OP-AMP
2(6)
3(5)
1(7)
HP_L(R)
FILTER
FILTER
IC2802
C3EBDG000052
E-EPROM
(NOT SUPPLIED)
5
6
42
43
EE_DAT
4
41
EE_CLK
3
EE_CS
D2332
B
Q2701,
Q2704~Q2706
SWITCH,
LOW
FREQUENCY
AMP
M
B
D2811
B
Q2902
Q2501
AUDIO
MUTING
B
CONTROL
SWITCH
1(2)
LM_L(R)
26
27
ASP_DAT
C2CBJG000565
ASP_CLK
MICROPROCESSOR
IC2801
40
MUTE_A
Q2806
POWER
RESET
CONTROL
SWITCH
12
/RESET/EFP_RESET
D2813
B
47
DCDET
SWITCH
Q2901
SWITCH
S6101~S6106,
S6201~S6210,
S6301, S6303~S6305
92 ~ 94
KEY3
SYNC
MUTE_H
PCONT/EFP_/CE
D2901
B
KEY1
20
39
46
55
Page 56
SA-AK23 0EE
DC_DET
FAN
HP _SW
10(14)
11(13)
LCH
-IN_L(R)
IC5802
RSN35H2B-P
POWER HIC
+IN_L(R)
12
IN GND
9
OUT GND
FILTER
FILTER
Q5812, Q5813
DC DETECT
SWITCH
OUT_L(R)
+VCC
-VCC
AC DET
LATCH
-VCCM
4(1)
2
3
6
5
8
FILTER
B
Q5802, Q5805
VOLTAGE SUPPLY/
CURRENT CONTROL
SWITCH
D5814
JK5952
LOW CH
(6 W)
JK6551
HEADPHONE
DC_DET
HP_SW
SYNC
MUTE_H
T5951
RCH
SUB
TRANSFORMER
E5800
JK5950
AC INLET
Q5814
MUTE_H
FAN
SYNC
D5813
HEADPHONE
MUTING
SWITCH
Q5952
SYNCHRONISING
SWITCH
5V VOLTAGE
B
REGULATOR
Q5801
10V VOLTAGE
REGULATOR
B
Q5804, Q5806, Q5807Q5808
CURRENT STABILISER/
LIMIT SWITCH/
10V VOLTAGE REGULATOR
Q5803
15V VOLTAGE
REGULATOR
Q5950
SYSTEM 6V
VOLTAGE
B
REGULATOR
FP5833
D5954~D5957
Q5951
VOLTAGE
REGULATOR
B
(-VP)
D5959
FL DISPLAY
D5950~D5953
FP5950
FP5951
TO
T5950
POWER TRANSFORMER
Q5953
RL5950
POWER
SWITCH
CONTROL
D5961~D5964
F1
Z5950
B
SIGNAL LINES
: MAIN SIGNAL LINE
: FM OSC SIGNAL LINE
: FM SIGNAL LINE
( ) Indicates the Pin No. of Right Channel.
: CD SIGNAL LINE
: AM OSC SIGNAL LINE
: AUX SIGNAL LINE
: AM SIGNAL LINE
: FM/AM SIGNAL LINE
: CD-DA (AUDIO/VIDEO) SIGNAL LINE
NOTE : Signal Lines are applicable to the Left Channel only.
56
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
Page 57
15 Voltage Measurement
SA-AK230EE
57
Page 58
SA-AK23 0EE
58
Page 59
16 Schematic Diagram
(All schematic diagrams may be modified at any time with the
development of the new technology)
Note:
SW1: Push switch
SW2: Push switch
SW3: Open switch
SW4: CD switch
SW5: Load switch
S951: Mode switch
S952: Half switch
S971: Mode switch
S972: Half switch
S975: Recinh_F switch
S6101: Open/ Close switch
S6102: CD 1 switch
S6103: CD 2 switch
S6104: CD 3 switch
S6105: CD 4 switch
S6106: CD 5 switch
S6201: Rew/Down switch
S6202: Tuner switch
S6203: CD switch
S6204: FF/Up switch
S6205: Stop switch
S6206: Deck 1/2 switch
S6207: Deck 2 switch
S6208: TAPE switch
S6209: AUX switch
S6210: Deck 1 switch
S6301: Power switch
S6303: SSEQ switch
S6304: REC switch
S6305: Demo/Displa y switch
S7201: Rest switch
VR6491: VR Volume Jog
· The voltage value and waveforms are the reference voltage
of this unit measured by DC electronic voltmeter (high
impedance) and oscilloscope on the basis of chassis.
Accordingly, there may arise some error in voltage values
and waveformsdepending upon the internal impedance of
the tester or the measuring unit.
·Importance safety notice :
Componentsidentifiedby
characteristic s important for safety. Furthermore, special
parts which have purposes of fire-retardant (resistors), highquality sound (capacitors), low-noise (resistors), etc. are
used. When replacing any of components, be sure to use
only manufacturer´s specified parts shown in the parts list.
Caution !
IC, LSI and VLSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
·Cover the parts boxes made of plastics with aluminium foil.
·Put a conductive mat on the work table.
·Ground the soldering iron.
·Do not touch the pins of IC, LSI or VLSI with fingers directly.
markhavespecial
SA-AK230EE
59
Page 60
SA-AK23 0EE
16.1. (A) CD Servo Circuit
SCHEMATIC DIAGRAM - 1
OPTICAL
PICKUP CIRCUIT
: +B SIGNAL LINE
CD SERVO CIRCUIT
: CD-DA SIGNAL LINE
LASER DIODE
Q7601
B1ADCF000001
LASER POWER DRIVE
C7614
6.3V100
R7650
5.6
R7601
4.7
Q7601
C7601
6.3V33
C7670
0.1
C7204
0.1
C7203
6.3V220
CN7001
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
VCC
F
E
LD
LD GND
GND
A
GND
B
VREF
LPD
GND
T-
T+
F-
F+
C7613
0.1
6
8
11
C
12
10
5
1
4
9
2
2
3
3
4
C
GND
VCC
BIN
AIN
NBOUT
NAOUT
VREF
C
GND
C
8
7
6
5
1
2
3
4
5
6
C
7
8
9
10
11
12
13
14
15
16
C7335
0.1
C7334
10V220
R7329 1.5K
R7327
1.5K
21
NC
VCC
24 25 26
23
22
IN4
VREF
NC
IN3
RSTIN
D3+
171615
D4-
NC
D4+
PGND2
GND
PVCC2
14
D3-
R7328 18K
R7349
15K
IC7003
C7352
D1+
D1-
SP MOTOR
NC
9201019111812
8
35
M702
38
M701
TRV MOTOR
IN1NCPC2NCIN2
7
NC
R7335
100
D2+
D2-
13
36
M
37
M
GND
PGND1
PVCC1
/RST
12
3456
R7323
5.6K
C7338
0.22
R7325
R7336
10
560
0.01
AN8739SBTE2
C7315
0.22
SPINDLE MOTOR DRIVE
R7331
22K
C7339
0.01
R7339
1K
IC7003
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
R7315
2.7K
60
Page 61
SCHEMATIC DIAGRAM - 2
: +B SIGNAL LINE: CD SIGNAL LINE
CD SERVO CIRCUIT
C7625
C7626
0.1
6.3V220
C7224
0.1
C7223
6.3V100
: CD-DA SIGNAL LINE
SA-AK230EE
20
26
23
21
C7110
470P
R7102
4.7K
R7105
39K
C7106
0.1
C7147
390P
R7144
47K
29
C7107
0.022
C7102
0.47
C7142
0.022
40
RFIN
39
RFOUT
38
RESERVE
37
RFVDD
36
DCDET
A
35
34
C
B
33
D
32
31
F
30
E
29
28
27
26
TEOUT
25
TEN
24
FEN
23
FEOUT
22
RFENV
21
CEA
LD
PD
VREF
C7105
0.1
R7211
82K
R7212
820
41
CAGC
FEIN
30
42
ARFOUT
TEIN
0.1
C7241 1000P
C7217
C7244 0.015
680P
C7216
43
444546
47
IREF
DSLF
ARFIN
AVSS2
DIGITAL SIGNAL PROCESSOR/
IOVDD3
DVDD1
DVSS1
ADPVCC
14
181920
15
16
17
C7218 0.082
48
49
50
52
51
PLLF
MN6627953HB
FOM
NC
OUTL
PLFF0
AVSS1
AVDD2
IC7002
SERVO PROCESSOR
DIGITAL FILTER/
D/A CONVERTER
TRVP2
TRVM2
TRP
TRM
FOP
11
10
1213
9
R7217
1K
R7218
1K
0.1
C7263
53
56
57
55
54
58
OUTR
AVDD1
DVSS2
DVDD2
IOVDD1
PWMSEL
SPOUT
TRVP
TRVM
SPPOL
4
6
8
3
5
7
C7231
6.3V220
C7234
16V10
59
REGON
IOMODE
EXT1
EXT2
2
60
1
NTEST
IOVDD2
EXT0
C7225
1000P
C7226
1000P
C7230
0.1
C7233
0.1
C7264
0.1
FLAG
MCLK
MDATA
MLD
STAT
BLKCK
NRST
DVSS3
DQSY
TXTD
TXTCK
GIO0
GIO1
GIO2
GOUT0
GOUT1
22
R7221
100
C7232
6.3V220
C7235
16V10
61
TX
25
62
63
64
65
R7253
66
10
67
68
69
70
X2
71
X1
72
73
74
75
76
77
78
79
80
C7161
0.1
C7253 470P
R7220
1M
X7201
H2B169500002
IN OUT
GND
R7214
680
15
C7243
R7254
1K
C7166
0.01
LCH OUT
RCH OUT
0.1
REST SW
A.GND
+3.3V
D.GND
LD SW
+7.5V
P.GND
MCLK
MDATA
MLD
BLKCK
STAT
/RST
16
15
14
13
12
11
10
TX
TO
MAIN CIRCUIT
(CN2801) ON
9
SCHEMATIC
8
DIAGRAM-5
7
6
5
4
3
2
1
CN7002
C7149
3900P
R71061KR7104
1K
C7155
0.1
61
REST SW
16
S7201
1
Page 62
SA-AK23 0EE
16.2. (B) Main (Tuner) Circuit
FM EXT
75 OHM
AM LOOP
AM EXT
ANT
SCHEMATIC DIAGRAM - 3
MAIN (TUNER) CIRCUIT
ENV17290G1Y
ANT
ANT
GND
JK2601
22P
1
1
2
3
2
4
3
4
5
15P
0.47uH
R2662
10K
100K
2SK238
1P
18P
HVM27
33K
L2601
GNS-A0882DC
R2610
1K
8P
100K
8P
0.022
B0CDBB000015
C2607
0.047
22
2.7K
47P
D2602
HVM27
7P
33K
0.022
100
2SK360
8P
HVM27
3P
R2661
330K
L2602
G2BPC0000016
R2612
100K
100K
33K
C2608
8P
HVM27
C2636
1000P
2SC2620
4P
1P
4P
22P
330
10K
8P
10K
R2619
3.3K
: +B SIGNAL LINE
: FM/AM SIGNAL LINE
IFT
1uH
10K
1.5M
220P
100uF
16V
220
0.022
330
470K
15P
2P
2SC2996
33P
18P
1.2K
2SC2996
C2614
50V3.3
IC2601
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
R2618
12K
0.022
150
CF2601
J0B1075A0086
7
1
6
8
C2609
1000P
OSC OUT
2
2324
OSC
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
C2603
R2607
0.01
330
3
R2606
C2604
470K
1000P
R2605
470
Q2601
C2601
C2602
0.01
16V10
C2619
680P
R2620
47K
0.033
C2616
C2615
50V4.7
2122
AFC
AGC
AM OUT
AM RF IN
IC2601
DET OUT
R2601
R2621
22K
R2643
150P
C2631
0
22K
C2639
PILOT IN
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
R2604
1K
CF2602
J0B1075A0086
3
1
2
R2603
100
C2620
16V10
C2638
0.01
50V4.7
0.01
C2618
C2617
3300P
68K
R2623
C2637
16101511141213
RCH
MPX IN
PILOT OUT
B1GCCFJJ0015
B1AABC000003
R2646
100K
R2642
0.01
6.8K
C2642
50V1
R2641
6.8K
C2641
50V1
R2645
100K
C2643
4700P
LCH
Q2606
Q2606
TUNER 15V
SUPPLY SWITCH
Q2601
FM IF AMP
C2644
4700P
C2610
0.01
R2652
D2601
B0BC5R000009
R2614
5.6K
C2633
12P
X2603
0
C2634
12P
C2630
6.3V100
C2612
H0H720400005
R2638
3.3K
R2630
10K
0.01
20
1
R2613
C2632
1000P
50V4.7
R2615
19
18
VSS
XOUT
AOUT
PLL FREQUENCY SYNTHESIZER
DI
CE
XIN
2
3
R2636 1K
R2637 1K
CE
PLLDA
R2611
390
C2625
10K
16V22
C2611
560
R2616
1K
17516
AIN
LC72131MDTRM
CL
4
R2635 1K
PLLCLK
15714
PD
VDD
IC2602
DO
AM
6
R2634 470
DO/ST
R2651
FM DET
REG
AM MIX OUT
R2632
10K
C2606
0.01
AM IF IN
4
C2629
6.3V100
R2633
FM IF IN
1234
C2627
16V22
2
1
Z2602
G2BAD0000003
R2617
1000P
C2613
82
13
FMIN
AMIN
MONO
LW
STRQ
SDC
8
91210
68K
C2626
1
3
56
R2628
82
R2629 27K
C2624
100P
11
IFIN
FM
ST
SD
GND
5206197188179
C2647
1000P
C2648
0.01
R2626
1K
1K
R2625
X2602
DO/ST
SD
VCC
33
R2624
470
H3F1065A0002
C2649
0.1
STRQ
470
R2627
FM/AM
C2622
R2622
MONO
50V1
2.7K
C2621
50V0.47
C2623
50V1
R2644
R2631
120
120
DO/ST
PLLCLK
TGND
15V
+7.5V
RCH
LCH
PLLDA
DO/ST
SD
CE
TO
MAIN
CIRCUIT
(2A) ON
SCHEMATIC
DIAGRAM-7
1A
TO
MAIN
CIRCUIT
(2B) ON
SCHEMATIC
DIAGRAM-7
1B
62
Page 63
16.3. (B) Main Circuit
SCHEMATIC DIAGRAM - 4
: +B SIGNAL LINE
: -B SIGNAL LINE
MAIN CIRCUIT
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
SA-AK230EE
: AUX SIGNAL LINE
: MAIN SIGNAL LINE
TO
DECK
CIRCUIT
(CN1001) ON
SCHEMATIC
DIAGRAM-13
CN2803
AUX
TO
CD LOADING
CIRCUIT
(CN1) ON
SCHEMATIC
DIAGRAM-10
RCH
LCH
JK2801
CN2805
CR02
1
MOTOR
2
BP1
3
DECK1_H
4
DMT
5
MOGND
6
MOT+B
7
REC_H
8
+15V
9
RECINR
10
RECINL
11
AFGND
12
PBR
13
PBL
14
CHG_CW
14
CHG_HALF
13
CD8V
12
CHG_CCW
11
CLAMP
10
OPEN
9
CD_SW1
8
PGND
7
CD_SW2
6
DGND
5
5V
4
POSITION
3
BOTTOMSW
2
PLUNGER
1
C2996
0.22
ERJ3GEY0R00V
B1GDCFJJ0023
C2998
C2997
0.1
0.22
C2216
L2996
C2116
680P
R2942 22K
R2941 12K
C2936
0.47
R2940 220
R2939 22K
R2938 12K
D2936
B0EAKM000117
B1ACKD000005
CD MOTOR SUPPLY SWITCH
R2216
680P
12K
R2116
12K
Q2978
SWITCH
Q2936
Q2936
Q2978
C2217
100P
C2117
100P
R2943
10K
R2937
10K
R2976
0
C2976
16V10
R2217
2.7K
R2117
2.7K
R2946
R2945
47K
R2944
10K
CHG_CW
CHG_HLF
CHG_CCW
CHG_AD1
CHG_AD2
CHG_SW1
CHG_SW2
47K
Q2937
CHG_PLR
R2936
1K
MOT10V
Q2937
B1GBCFJJ0051
PLUNGER MOTOR
SUPPLY CONTROL SWITCH
MOT10V
/REC
+15V
REC_R
REC_L
PBR
PBL
AUXR
AUXL
VREF+
CD8V
SW5V
HI_L
HI_R
2SD0601AHL
DCDET
-9V
SW5V
R2704
0
FAN
SW5V
Q2706
SWITCH
R2701
2.2M
R2712
22
R2702
DECK1_H
R2715
10K
3.3K
C2701
0.01
Q2980
B1GDCFJJ0023
DECK MOTOR SWITCH
R2977
0
/MTR
D2813
B0ACCK000005
C2184
1500P
R2184
8.2K
C2284
1500P
R2284
8.2K
C2708
D2705
16V10
D2703, D2704, D2705
B0ACCK000005
Q2701
R2706
4.7K
C2706
0.01
+9V
/DCDET
C2183
0
C2283
0
R2714
120K
2SD0592ARA
R2705
4.7K
LOW FREQUENCY AMPLIFIER
Q2704
R2708
R2709
10K
100K
SW5V
CD7.5V
D2811
B0ADCJ000020
R2181
0
R2281
0
Q2705
R2711
100
R2713
100K
Q2701
SWITCH
Q2704,Q2705
2SB0709AHL
C2181
C2281
R2707
1K
0
0
D2704
VREF+
R2899
47K
D2703
C2705
16V10
R2254
100K
R2710
C2707
10V10
220K
R2154
100K
R2252
0
63
2
1
TO FAN UNIT
CN2810
Page 64
SA-AK23 0EE
SCHEMATIC DIAGRAM - 5
: +B SIGNAL LINE
: -B SIGNAL LINE
MAIN CIRCUIT
C2751
0.1
R2152
0
R2170
R2171
3.3K
HP_L
1
R2168
33
R2169
33
C2166
1000P
R2266
33
R2267
33
R2268
33
R2269
C2266
1000P
HP_R
R2270
1
R2271
3.3K
33
R2166
33
R2167
33
C2251
16V10
C2151
16V10
: CD SIGNAL LINE
: MAIN SIGNAL LINE
C2520
0.01
8
TO
PANEL CIRCUIT
(CN6601) ON
SCHEMA TIC DIAGRAM-9
22
29
30
HP_L
HP_L
C2401
10P
R2403
330K
7
24
21
25
23
27
28
26
HP_R
/PLG2
/PLG1
HP_R
/HALF_1
/HALF_1
/MODE_1
/PLG1
/MODE_1
/PLG2
MOT10V
MOT10V
Q2501
C2402
R2532
47P
0
5
16
20
19
v_JOG_B
V_JOG_A
v_JOG_B
V_JOG_A
B1GDCFJJ0023
MUTING CONTROL
18
17
FL_RST
FL_RST
R2243
Q2501
FL_CS
FL_CS
C2242
100K
15
FL_CLK
FL_DOUT
FL_CLK
FL_DOUT
1
R2242
15K
R2501
2.2K
14
12
13
KEY3
DECK2
SSEQ_LED
SSEQ_LED
DECK2
KEY3
Q2571
6
5
4
R2502
56K
R2402 15K
11
R2241
2.7K
KEY2
KEY2
C2142
10
KEY1
KEY1
1
2
3
1
PHOTO_2
9
PHOTO_2
N
8
PHOTO_1
PHOTO_1
C2241
C2501
50V2.2
7
RMT
RMT
1
R2142
15K
R2143
100K
6
VREF+
VREF+
5
CN2806
4
3
2
1
SYNC
SW5V
SYS6V
PCONT
C2753
0.1
C2999
0.1
SYNC
PCONT
SW5V
SYS6V
Q2571
B1GFGCAA0001
MUTING SWITCH
R2141
C2141
2.7K
1
R2503
27K
CONN
OUT2
OUT1
CONN1
-9V
MUTE_A
CONN
BLKCK
CDSTAT
SW5V
MCLK
MDATA
MLD
CD_RST
RESTSW
R2922
10K
R2920
4.7K
B1ABCE000016
R2921
4.7K
R2927
4.7K
C2906 1000P
R2931 10K
R2930 10K
R2929 10K
R2928 10K
Q2906,Q2907
SWITCH
Q2907
Q2906
R2925
R2916 4.7K
R2924 10K
R2918 10K
0
0
0
R2926
R2923
R2917
R2915
/RESTSW
/RST
STAT
MLD
BLKCLK
14
16
13
12
15
TO
CD SERVO CIRCUIT
(CN7002) ON
SCHEMATIC DIAGRAM-2
+9.0V
R2919
4.7K
4.7K
R2912 4.7K
R2914 4.7K
0
0
0
R2911
R2913
MCLK
MDATA
11
10
C2301
10P
CD7.5V
470P
C2907
C2905 16V100
+7.5V
LD_SW
PGND
8
6
9
7
1
R2302
CONN1
C2202
0.1
R2201
1.2K
C2201
1
CD_GND
CD3.3V
4
5
IC2804
R2303
330K
15K
C2902
AGND
RCH_OUT
3
2
2
C2302
47P
R2101
16V10
LCH_OUT
1
364
C2102
0.1
R2102
1.8K
R2202
1.8K
1.2K
C2101
CN2801
1
R2531
C2901
0.1
0
C2521
-9.0V
R2933
IC2804
C0AABA000009
DUAL OP-AMP
0.01
C2203
1000P
0
D2904
B0EAKM000117
C2103
1000P
B0ADCC000002
R2901
10K
R2903
15
R2902
12
Q2902
B1AACF000064
SWITCH
R2907
1K
D2901
Q2902
C2903
0.01
Q2901
B1ACKD000005
SWITCH
R2908
330
C2904
16V100
R2909
2.2K
R2910
330
R2932
RCH
LCH
CD8V
SW5V
0
64
Page 65
SCHEMATIC DIAGRAM - 6
MAIN CIRCUIT
SA-AK230EE
: +B SIGNAL LINE
VCC
/REC
/MTR
MLD
MDATA
CDSTAT
CD_RST
FL_CLK
SSEQ_LED
FL_CS
FL_DOUT
FL_RST
EXP_DAT
V_JOG_B
EXP_CLK
V_JOG_A
DECK1_H
/PLG2
/PLG1
/HALF_1
/MODE_1
MCLK
RESTSW
CHG_HLF
CHG_CW
CHG_CCW
CHG_SW1
CHG_SW2
CHG_PLR
CHG_AD2
CHG_AD1
DECK2
KEY3
KEY2
KEY1
PHOTO_2
PHOTO_1
VREF+
VCC
R2858
R2859
R2860
R2862
R2856 100
R2857 100
R2861
100
100
100P
C2817
R2867
100K
C2831 0.022
C2832 330P
R2876 22K
R2877 22K
100
100
100
C2816
100P
100P
C2815
C2833
330P
100P
C2814
MCLK
81
/RESTSW
82
CHG_HLF
83
CHG_CW
84
CHG_CCW
85
CHG_SW1
86
CHG_SW2
87
CHG_PLR
88
89
CHG_AD2
CHG_AD1
90
DECK2
91
KEY3
92
KEY2
93
KEY1
94
PHOTO_2
95
AVSS
96
PHOTO_1
97
VREF
98
AVCC
99
DEMO
100
100P
100P
100P
C2811
C2813
C2812
C2821 100P
C2820 100P
C2819 100P
C2818 100P
EE_CS
VREF+
EE_CLK
2
3
4
IC2802
C3EBDG000052
E-EPROM IC
(NOT SUPPLIED)
6
5
7
R2878
4.7K
0
100K
R2822
D2802
100K
R2823
VREF+
R2832
10K
DCDET
PCONT
EE_DAT
EE_CLK
EE_CS
MUTE_A
MUTE_H
100K
R2824
SW5V
SYS6V
VREF+
BUSY
CLK
RXD
TXD
R2844 10K
58
56
55
57
NC
MTR
PLG1
PLG2
SW_LV1
SW_LV2
ASP_DAT
HARMONIC_SW
2524232221
ASP_DAT
HARMONIC_SW
X2802
H2B100500004
R2843 1K
54
51
52
53
HALF_1
MODE_1
SW_LED
PCONT/EFP_/CE
EE_CS/EFP_/EPM
PLLDA
NC
ASP_CLK
3029282726
ASP_CLK
PLLCK
PLLDA
16V100
C2856
1
NC
DCDET
EE_DAT
EE_CLK
MUTE_A
MUTE_H
REG1
REG2
REG3
REG4
REG5
REG6
PLLCK
C2852
NC
50
49
NC
48
NC
47
46
45
NC
44
NC
43
42
41
40
39
38
37
36
35
34
33
REG7
32
REG8
31
R2804 47K
R2805 47K
R2807 10K
R2806 10K
C2851
R2891 47K
R2810 22K
C2853
0.1
Q2806
B0ACCK000005
100K
R2817
0.1
D2804
100K
100K
R2818
R2819
R2892
C2854
16V100
C2857
50V2.2
B1GBCFJJ0051
R2834
1K
100K
100K
R2820
R2821
B0ADCJ000020
0
R2811
Q2806
POWER RESET
CONTROL SWITCH
R2846 4.7K
63
RMT
18
100
RMT
C2840
18P
C2841
62
NC
BLKCK
R2886
18P
61
VCC
BLKCK
2019
R2803
1M
NC
SYNC
SYNC
60
DECK1_H
ST/DO
10K
DO/ST
R2845 10K
59
REC
SD
SD
R2881
220
IN OUT
GND
76
CD_RST
SSEQ_LED
NC
NC
5
6
NC
NC
R2801
7475
NC
7
10K
73
FL_CLK
72
FL_CS
FL_DOUT
FL_RESET
XC_IN
CNVSS/EFP_CNVSS
BYTE
9
10
8
XC_IN
80
79
7778
MLD
MDATA
STATUS
PLLCE
NC
LM_L
1
3
2
4
LM_L
PLLCE
EE_DAT
1
8
66
65
68
697071
67
NC
EX1_CLK
EX1_DAT
V_JOG_A
V_JOG_B
IC2801
C2CBJG000565
MICROPROCESSOR
VSS
XC_OUT
/RESET/EFP_RESET
X_OUT
X_IN
16
1413
12
15
11
XIN
X_OUT
XC_OUT
R2883
330K
R2882
10M
X2801
H0A327200073
VCC
NC
VCC
64
17
R2802
VSS
/NMI
R2841 10K
R2842 10K
65
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SA-AK23 0EE
SCHEMATIC DIAGRAM - 7
MAIN CIRCUIT
PBL
R2111
10K
R2112
22K
C2111
C2112
0.1
1500P
C2411
0.15
R2411
0
C2119
C2118
1000P
0.1
C2219
C2218
1000P
0.1
LCH
RCH
AUXL
AUXR
C2311
0.15
C2581
10V33
R2212
22K
C2212
1500P
R2311
C2412
0.15
0
C2114
0.01
C2214
0.01
C2312
0.15
N
: +B SIGNAL LINE
: -B SIGNAL LINE
PBR
R2211
10K
C2211
0.1
VIN1
1
2
SEL1
VIN2
3
SEL2
4
A1(L)
5
A2(R)
6
B1(L)
7
8
B2(R)
IC2803
C1(L)
9
10
C2(R)
11
D1
12
D2
13
E1(L)
E2(R)
14
FILTER
15
16
GND
IC2803
C1BB00000732
AUDIO SOUND PROCESSOR
R2584
C2584
330K
220P
C2120
1
MOUT1
MOUT2
BOUT1
BOUT2
REC1
REC2
MNF1
MNF2
BNF1
BNF2
OUT1
OUT2
CAP
VCC
SW5V
SI
SC
C2220
R2586
1.2K
: AUX SIGNAL LINE
: CD SIGNAL LINE
: FM/AM SIGNAL LINE
R2317
100K
R2318 2.7K
R2418 2.7K
R2417
1
R2316
6.8K
32
R2416
6.8K
31
C2121
0.1
30
C2221
0.1
29
C2126
0.1
28
C2226
0.1
27
C2131
0.1
26
C2231
0.1
25
C2136
0.1
24
C2236
0.1
23
22
21
C2583
0.22
20
19
18
C2585
220P
17
ASP_CLK
100K
C2207 0.1
C2208
1000P
C2108
1000P
R2103
8.2K
R2108
8.2K
R2113
8.2K
R2118
8.2K
R2585
330K
R2587
1.2K
C2107
0.1
C2588
0.1
: MAIN SIGNAL LINE
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
D2951
B0BC7R500001
C2952
0.01
+15V
DO/ST
REC_L
SD
+9V
R2954
REC_R
VIN2
47K
47K
R2582
VIN1
C2206
3300P
C2106
3300P
OUT1
OUT2
N
0
+9V
R2207
R2107
C2582
16V100
ASP_DAT
27
R2206 100
PLLCE
R2952 4.7K
R2106 100
PLLDA
PLLCLK
FAN
DCDET
R2571
MUTE_H
+15V+15V
2.2K
HI_L
HI_R
LO_L
LO_R
CD8V
MOT10V
+9V
-9V
SW5V
C2977
16V100
D2951
R2953
10K
C2951
0.01
DO/ST
PLLCLK
FAN
DC_DET
MUTE_H
HIGH_LIN
HIGH_RIN
A_GND
LOW_LIN
LOW_RIN
AGND
T GND
P_GND
FL_GND
UP GND
CD8V
LED9V
MOT10V
+9V
SW5V
TGND
+15V
DO/ST
+7.5V
RCH
LCH
PLLDA
-9V
SD
CE
TO
MAIN (TUNER)
CIRCUIT
(1A) ON
SCHEMATIC
DIAGRAM-3
2A
TO
MAIN (TUNER)
CIRCUIT
(1B) ON
SCHEMATIC
DIAGRAM-3
20.1. IC7002 (MN6627953HB) Servo
processor/ Digital signal
processor/ Digital filter/ D/A
converter
Pin No.MarkI/OFunction
1EXT0I/OExtend input/output port 0
2EXT1I/OExtend input/output port 1
3EXT2I/OExtend input/output port 2
4PWMSELIPWM output selection input
(L: Direct; H: Tri-State
5SPOUTOSpindle driver output signal
6SPPOLOSpindle driver output signal
7TRVPOSpindle driver output signal
8TRVMOSpindle driver output signal
9TRVP2OTraverse driver output signal
2 (+)
10TRVM2OTraverse driver output signal
2 (-)
11TRPOTraverse driver output signal
(+)
12TRMOTraverse driver output signal
(-)
13FOPOTraverse driver output signal
(+)
14FOMOTraverse driver output signal
(-)
15IOVDD3-I/O power supply 3
16DVDD1-Power supply 1 for digital
circuit
17DVSS1-Digital circuit GND 1
18ADPVCCIPower voltage monitor. Power
voltage input
19TEINIDSP traverse error signal
input
20FEINIDSP focus error signal input
21CEAI/OHPF-Ampcapacitance
connection terminal
22RFENVORF envelope signal monitor
23FEOUTOFE Amp output
24FENIFE Amp reversal input
25TENITE Amp reversal input
26TEOUTOTE Amp output
27VREFOVREF output
28PDIAPC Amp input
29LDOAPC Amp output
30EITracking input signal 1
31FITracking input signal 2
32DITracking input signal 4
33BITracking input signal 2
34CITracking input signal 3
35AIFocus input signal 1
36DCDETIDetection HPF capacitance
49AVDD2-Analog circuit power supply 2
50OUTLOLCH output signal
51AVSS1-Audio output circuit GND 1
52N.C.-No Connection
53AVDD1-Power supply 1 for analog
circuit
54OUTRORCH output signal
55DVSS2-Digital circuit GND 2
56IOVDD1-I/O power supply 1
57DVDD2-Power supply 2 for Digital
18N.C.-No Connection
19PGND2-Ground connection (2) for driver
20PVCC2-Power supply (2) for driver
21VCC-Power supply terminal
22VREF-Reference voltage input
23IN4IMotor driver (4) input
24IN3IMotor driver (3) input
25RSTINIReset terminal
26N.C.-No Connection
output
output
16.9344MHz)
output
output
20.3. IC2801 (C2CBJG000565)
System Microprocessor
Pin No.MarkI/OFunction
1LM_LILevel Meter Left
2N.C.-No Connection
3PLL_CEOPLL Chip Select
4RDS_DATIRDS Data Input
5RDS_CLKIRDS Clock Input
6N.C.-No Connection
7N.C.-No Connection
8BYTEIExternal Data Bus Width Select
9CNVss/EFP_
CNVss
10Xcin-32.768 kHz Sub Clock
11Xcout-32.768 kHz Sub Clock
12/RESET/EFP_
RESET
13Xout-10 MHz Main Clock
14Vss-Ground (0V)
15Xin-10 MHz Main Clock
16Vcc-Power Supply (+5V)
17/NMI-Connect to Vcc (+5V)
18RMTIRemote Control Input
19BLKCKICD Block Clock Input (Inverted)
20SYNCIAC Failure Detect Input
21ST/DOITuner IF Data/ Stereo Input
22SDITuner Signal Detect Input
23Harmonic_ SWI/O *3 Harmonic Switch (Active L)
24SW_LVL 1O*4 Sub-Woofer Level 1
25SW_LVL 2O*4 Sub-Woofer Level 2
26ASP_DATOASP Data
27ASP_CLKOASP Clock
28N.C.-No Connection
29PLL_DATAOPLL DATA
30PLL_CLKOPLLCLK
31REG
92KEY3IKEY3 INPUT
93KEY2IKEY2 INPUT
94KEY1IKEY1 INPUT
95PHOTO_2IRotation Detection Signal (Deck
96AVss-Analog Power Supply Input
OEEPROM Chip Select
OMain Transformer Control
Output
(“L” for motor ON)
operating
selected
(Output)
Most Inner Point (Active Low)
Output
Counterclockwise Output
(Position/Bottom)
(Open/Clamp)
(R_INHF/MODE2/HALF2)
2)
(Connect to GND)
86
Page 87
Pin No.MarkI/OFunction
97PHOTO_1IRotation Detection Signal (Deck
1)
98VREF-Reference for A-D (5V)
99AVcc-Analog Power Supply Input
100Demo SelectorI(H= default demo on, L= default
demo off.)
SA-AK230EE
87
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SA-AK23 0EE
21 Troubleshooting Guide
88
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SA-AK230EE
22 Parts Location and Replacement Parts List
Notes:
· Important safety notice:
Components identified by
Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise
(resistors), etc are used.
When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
· The parenthesize d indications in the Remarks columns specify the areas or colour. (Refer to the cover page for area or colour)
Parts without these indications can be used for all areas.
· W arning: This product uses a laser diode. Refer to caution statements on “Precaution of Laser Diode”.
ACHTUNG:
−
− Die Lasereinheit nicht zerlegen.
− −
−
− Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.
− −
·Capacitor values are in microfarads (µF) unless specified otherwise, P= Pico-farads (pF), F= Farads.
·Resistance values are in ohms, unless specified otherwise, 1K=1,000 (OHM).
·The marking (RTL) indicates that the Retention Time is limited for this items. After the discontinuati on of this assembly in
production, the item will continue to be available for a specific period of time. The retention period of a availability is dependent
on the type of assembly, and in accordance with the laws governing part and product retention. After the end of this period, the
assembly will no longer be available.
·[M] Indicates in the Remarks columns indicates parts supplied by PAVCSG.
·The “(SF)” mark denotes the standard part.
·Reference for O/I book languages are as follows:
Ar:ArabicDu:DutchIt:ItalianSpSpanish
Cf:Canadian FrenchEn:EnglishKo:KoreanSw:Swedish
Cz:CzechFr:FrenchPo:PolishCo:Traditional Chinese
Da:DanishGe:GermanRu:RussianCn:Simplified Chinese
Pe:PersianUr:Ukraine
mark have special characteristic s important for safety.
89
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SA-AK23 0EE
22.1. Deck Mechanism (RAA4502-S)
22.1.1. Deck Mechanism Parts Location
90
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SA-AK230EE
91
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SA-AK23 0EE
22.1.2. Deck Mechanism Parts List
Ref. No.Part No.Part Name & DescriptionRemarks
101RED0069R/P HEAD BLOCK UNIT[M]
102RED0070P/B HEAD BLOCK UNIT[M]
103RDG0300REEL BASE GEAR[M]
104RDG0301WINDING RELAY GEAR[M]
105RDK0026MAIN GEAR[M]
107RDV0033- 4WINDING BELT[M]
108RDV0064CAPSTAN BELT A[M]
109RDV0071CAPSTAN BELT B[M]
110RMB0312TRIGGER LEVER SPRING[M]
111RMB0400REEL SPRING[M]