15.1. Main P.C.B. ------------------------------------------------66
15.2. Panel, USB, Music Port & Memory LED
P.C.B.--------------------------------------------------------68
15.3. Remote Sensor & CD Interface P.C.B. -------------69
16 Appendix Information of Schematic Diagram --------- 71
16.1. Voltage & Waveform Chart ----------------------------71
17 Exploded View and Replacement Parts List-----------77
17.1. Exploded View and Mechanical replacement
Part List-----------------------------------------------------77
17.2. Electrical Replacement Part List ---------------------83
2
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1Safety Precautions
1.1.General Guidelines
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which a re important for safety. These parts are marked by in the
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.
2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal
injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
3. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1.Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1MΩ and 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be
1.1.2.Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1-1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equiva lent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure 1-1
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1.2.Before Use (For PH only)
Be sure to disconnect the mains cord before adjusting the voltage selector as shown in Figure 1-2
Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be
used.
Note that this unit will be seriously damaged if this setti ng is not made correctly. (There is no voltage selector for some countries,
the correct voltage is already set.)
Figure 1-2
1.3.Before Repair and Adjustment
Caution:
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 110~127 V / 220~240 V, 50/60 Hz in FM Tuner at volume minimum mode should be ~ 500 mA (PH).
Current consumption at AC 120 V, 60 Hz in FM Tuner at volume minimum mode should be ~ 500 mA (PN).
1.4.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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1.5.Power Supply using SMPS
This model uses SMPS Module to Power up the unit. Below is the part number of the SMPS Model.
N0AB3GL00001 (PN)
N0AD3GL00001 (PH)
1.5.1.For SA-AKX36PN
Figure 1-3
1.5.2.For SA-AKX36PH
Figure 1-4
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1.6.Safety Parts Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
Safety Ref No.Part No.Part Name & DescriptionRemarks
16RGR0443C-A1REAR PANELPH
16RGR0443D-A1REAR PANELPN
17RKM0713-KTOP CABINET
301RAE1036Z-VTRAVERSE ASS'Y
A2K2CB2CB00022 AC CORDPN
A2K2CQ2YY00119 AC CORDPH
A3RQT9796-MO/I BOOK (Sp)
PCB9N0AB3GL00001 SMPS MODULEPN
PCB10N0AD3GL00001 SMPS MODULEPH
T6000G4DYA0000214 TRANSFORMER
6
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2Warning
2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices.
The following techniques should be used to help reduce the incidence of component damage caused by ele ctrostatic discharge
(ESD).
1. Immediately before handling any semiconductor component or semiconductor-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 al uminum foil, to prevent electrostatic charge buildup 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 removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled 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, aluminum 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 bodily 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).
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2.2.Precaution of Laser Diode
Caution:
This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.
Wavelength: 790 nm (CD)
Maximum output radiation power from pick up : 10 0 µW/VDE
Laser radiation from the pickup unit is safety level, but be sure the followings:
1. Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time.
Figure 2-1
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2.3.Service caution based on Legal restrictions
2.3.1.General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical comp onents on the printed circui t boa rds used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
Service caution for repair work using Lead Free Solder (PbF)
• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)
• To put lead free solder, it should be well molten and mixed with the original lead free solder.
• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the
lead free solder.
• Use the soldering iron (more than 70W) equipped with the temperature con trol after setting the temperatu re at 350±30 degrees
C (662±86°F).
Recommended Lead Free Solder (Service Parts Route.)
• The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(1.0mm 100g Reel)
Note
* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
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2.4.Handling Precautions for Traverse Unit
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
2.4.1.Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothe s or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To p revent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit remo ved
should be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible cable, cut off the antistatic FPC.
Figure 2-2
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2.5.Grounding for electrostatic breakdown prevention
• As for parts that use optical pick-up (laser diode), the optical pick-up is destroyed by the static electricity of the working environment.
Repair in the working environment that is grounded.
2.5.1.Worktable grounding
• Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed and ground the sheet.
2.5.2.Human body grounding
• Use the anti-static wrist strap to discharge the static electricity form your body Figure 2-3
Figure 2-3
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3Service Navigation
3.1.Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with original service
manual.
• CD Mechanism Unit:
1) This model uses CD Mechanism Unit.
• Micro-processor:
1) The following components are supplied as an assembled part.
- Micro-processor IC, IC2006 (RFKWMAKX36LM)
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3.2.Firmware Update Procedure
Start
Write encrypted UPD bin to CD-R
Turn On main set
Insert CD-R (with UPD bin) and
close
TOC reading
"CHECKING"
Writing starts:
"0%" -> "20%" -> "40%" ->
"60%" -> "80%" -> 100%"
"GOOD" display 3 sec
Set auto turn Off -> Cold Start
End
NG
"NO PLAY"
process end
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4Specifications
Q Amplifier section
RMS output power stereo mode
Front Ch (both ch driven)275 W per channel (3 Ω),
1 kHz, 30% THD
Total RMS stereo mode power550 W (30% THD)
Q
Q Tuner, terminals section
QQ
Preset memoryFM 30 stationsAM 15 stations
Frequency modulation (FM)
Frequency range 87.50 to 108.00 MHz
(50 kHz step) (for PH)
87.5 to 108.0 MHz
(100 kHz step) (for PN)
87.9 to 107.9 MHz
(200 kHz step) (for PN)
Antenna terminals75 Ω (unbalanced)
Amplitude modulation (AM)
Frequency range522 kHz to 1629 kHz
(9 kHz step) (for PH)
520 kHz to 1630 kHz
(10 kHz step) (for PH)
520 kHz to 1710 kHz
(10 kHz step) (for PN)
Music port (front)
Sensitivity100 mV, 4.7 kΩ
TerminalStereo, 3.5 mm jack
Q General
Power supplyAC 110 to 127/220 to 240 V,
50/60 Hz (for PH)
AC 120 V, 60 Hz (for PN)
Power consumption73 W
Dimensions (W x H x D)220 mm x 334 mm x 250 mm
Mass3 kg
Operating temperature range0 °C to +40 °C
Operating humidity range35% to 80% RH
Power Consumption in
standby mode
Note:
1. Specifications are subject to change without notice.
Mass and dimension are appropriate
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
Q System: SC-AKX36PH-K
Main Unit: SA-AKX36PH-K
Front Speakers: SB-AKX36PN-K
Q System: SC-AKX36PN-K
Main Unit: SA-AKX36PN-K
Front Speakers: SB-AKX36PN-K
(no condensation)
0.5 W (approximate)
Aux InputRCA pin jack
Q
Q Disc section
QQ
Discs played (8 cm or 12 cm)CD, CD-R/RW(CD-DA, MP3*)
Pick up
Wavelength790 nm(CD)
Audio output
Number of channels2 ch (FL, FR)
FL = Front left channel
FR = Front right channel
*MPEG-1 Layer 3
Q
Q Internal memory section
QQ
Memory
Memory size2 GB
Media file format supportMP3 (*.mp3)
Memory recording
Bit rate 128 kbps
Memory recording speed1x, 3x max (CD only)
Recording file formatMP3 (*.mp3)
Capacity of total songs recorded510 songs
(use 128 kbps, approximately 1 song = 4 mins)
Q
Q USB section
QQ
USB port
USB standardUSB 2.0 full speed
Media file format support MP3 (*.mp3)
USB device file systemFAT12, FAT16, FAT32
USB port power500 mA (max)
Bit rate 16 kbps to 320 kbps (playback)
USB recording
Bit rate 128 kbps
USB recording speed1x, 3x max (CD only)
Recording file formatMP3 (*.mp3)
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5General/Introduction
5.1.Media Information
15
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6Location of Controls and Components
6.1.Remote Control Key Button Operation
16
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6.2.Main Unit Key Button Operation
17
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7Installation Instructions
7.1.Speaker and A/C Connection
18
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8Service Mode
8.1.Cold-Start
Here is the procedure to carry out cold-start or initialize to shipping mode.
1. Unplug AC power cord
2. Press & hold [POWER] button
3. Plug AC power cord while [POWER] button being pressed
FL Display will show “_ _ _ _ _ _ _ _”
4. Release [POWER] button
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8.2.Doctor Mode Table
8.2.1.Doctor Mode Table 1
Doctor Mode
EEPROM
checksum
check
Item
DescriptionMode Name
To enter into Doctor ModeIn CD Mode:
Displaying of
1. Year Develop.
2. Model Type.
3. ROM Type.
4. Firmware Version.
(Display 1)
Version No. (001 ~ 999) specific for each
firmware
(Display 2)
FL Display
(Decimal)1 2 34
Key Operation
Front Key
1. Press [ ] button on
main unit follow by [4]
and [7] on remote control.
2. To exit, press [DELETE]
button on remote control or,
press [POWER, /I] button on
Main Unit
In CD mode:
1. Enter into Doctor Mode
Checksum (Hex)
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8.2.2.Doctor Mode Table 2
Item
DescriptionMode Name
Volume Setting
Check
FL Display Check
Traverse TestTo determine the traverse unit
To check the volume setting of the
main unit.
To check the FL segment display.
All segments will light up while all LED
blink at 0.5s intervals.
operation for inner & outer access track.
In this mode,ensure the CD is in the
main unit.
FL Display
Press [7]: VOL50
Press [8]: VOL35
Press [9]: VOL0
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
Key Operation
Front Key
In Doctor Mode:
1. Press [7], [8], [9] button on
the remote control.
Volume
In Doctor mode:
1. Press [1] button on the
remote control.
2. To cancel this mode, press
[0] button on the remote control.
In Doctor Mode:
1. Press [10] [1] [2] button
on the remote control.
Note: Refer to Section 8.3 Figure 8-2
.
for process flow
Reliability Test
(Combination)
Loading TestTo determine the open & close
To determine the traverse unit
operation & open/close operation of the
mechanism.
In this mode,ensure the CD is in the
main unit.
Note: Refer to Section 8.3 Figure 8-3
for process flow
operation of the CD Mechanism Unit.
In this mode, the tray will open & close
automatically.
Note: Refer to Section 8.3 Figure 8-1
for process flow
2. To cancel this mode, press
[0] button on the remote control.
In Doctor Mode:
1. Press [10] [1] [5] button
on the remote control.
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
2. To cancel this mode, press
[0] button on the remote control.
In Doctor Mode:
1. Press [10] [2] [1] button
on the remote control.
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
2. To cancel this mode, press
[0] button on the remote control.
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8.2.3.Doctor Mode Table 3
CD
Self- Adjustment
Test
Item
DescriptionMode Name
To display result of
self-adjustment for CD.
FL Display
Display of auto adjustment
result
Reference table:
ERROR Code
Status
Condition
0 1 2 4 6 8 A C E F
AOC1/AOC2 O O O O O O O O -
ABC2/ABC1 O - X O X O X O X -
nd
AOC1O - O X X O O X X -
2
FAGC/TAGC O - O O O X X X X -
AGC2O - O O O O O O O
O : OK;
X : NG (In case that time out happens.)
: Either one of FO AOC, TR AOC and FO
coarse AGC is NG.
: If the AGC is NG (ignore others).
Key Operation
Front Key
In Doctor Mode
:
1. Press [10] [1] [4] button
on the remote control.
To cancel this mode, press [0]
button on the remote control.
CD LSI Version
Check
For checking CD LSI Version and
checksum information.
(Display 1)
Year Develop
(Display 2)
ROM
Type
Checksum (Hex)
In Doctor Mode:
1. Press [4] button on the
remote control.
Version (Decimal)
after
2 sec
To cancel this mode, press [0]
button on the remote control.
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8.3.Reliability Test Mode (CD Mechanism Unit)
Below is the process flow chart of the aging test for the CD Mechanism Unit .
OPEN
Operation
OPEN wait
for 1 s
CLOSE
Operation
CLOSE wait
for 4 s
Fig. 1. Reliability Test (Loading)
Count up
First Track
Access
First Track
Play 10 s
First Track
Access
First Track
Play 5 s
Last Track
Access
Last Track
Play 5 s
Fig. 2. Reliability Test (Traverse)
Count up
Last Track
Access
Last Track
Play 10 s
Open
Operation
Open wait
for 1 s
CLOSE
Operation
Fig. 3. Reliability Test (Combination)
Count up
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8.4.Self-Diagnostic Mode
Item
Mode Name
Self Diagnostic
Mode
Error code
information
Delete error
code
Cold StartTo active cold start upon next AC
To enter into self diagnostic checking
System will perform a check on any
unusual/error code from the memory
To clear the stored in memory
(EEPROM IC)
power up when reset start is
execute the next time.
Description
Example:
FL Display
Key Operation
Front Key
Step 1: Select CD mode
(Ensure no disc is inserted).
Step 2: Press & hold [ ] button
follow by [ ] on
main unit for 2 seconds.
Step 1: In self diagnostic mode,
Press [ ] on main unit.
To exit, press [^/I] on main
unit or remote control.
Step 1: In self diagnostic mode,
Press [0] on remote control.
To exit, press [^/I] on main
unit or remote control.
In self diagnostic mode:
1. Press [3] button on
the remote control.
/
8.5.Self-Diagnostic Error Code Table
Self-Diagnostic Function (Refer Section 8.4. Self-Diagnostic Mode) provides information on any problems occurring for the unit and
its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held
unless it is cleared.
The error code is automatically display after entering into self-diagnostic mode.
Error CodeDiagnostic ContentsDescription of errorAutomatic FL DisplayRemarks
CD H15CD Open AbnormalDuring operation
CD H16CD Closing AbnormalDuring operation
F26Communication between
CD servo LSI and micro-p
abnormal.
POS_SW_R On fail to be
detected with 4 sec. Error
No. shall be clear by force
or during cold start.
POS_SW_CEN On fail to
be detected with 4 sec.
Error No. shall be clear by
force or during cold start.
During switch to CD function, if SENSE = “L” within
failsafe time of 20ms.
8.6.Sales Demonstration Lock Function
8.6.1.Entering into Sales demonstration lock mode
Here is the procedures to enter into the Sales demonstration lock mode.
Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Press and hold [
The display will show upon entering into this mode for 2 sec..
OPEN/CLOSE] and [CD] keys for 5 sec or more.
Press [
next error.
Press [
next error.
Press [
next error.
] on main unit for
] on main unit for
] on main unit for
Note: [ OPEN/CLOSE] button is invalid and the main unit displays “LOCKED” while the lock function mode is entered.
8.6.2.Cancellation of Sales demonstration lock mode
Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Set volume to Vol 19.
Step 4: Press and hold [
The display will show upon entering into this mode for 2 sec..
OPEN/CLOSE] and [CD] keys for 5 sec or more.
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9Troubleshooting Guide
"Contents for this section is not available at time of issue"
26
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10 Disassembly and Assembly Instructions
• Illustration is based on SA-AKX36PH-K.
Caution Note:
• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main components for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service
manual)
• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.
• During the disassembly and/or assembly process, please ha ndle with care as there may be chas sis components with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)
• During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used.
• During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the service manual.
• Select items from the following indexes when disassembly or replacement are required.
• Disassembly of Top Cabinet
• Disassembly of Front Panel Unit
• Disassembly of Panel P.C.B., LED P.C.B. and Mic P.C.B.
• Disassembly of Remote Sensor P.C.B.
• Disassembly of USB P.C.B.
• Disassembly of CD Lid
• Disassembly of Rear Panel
• Disassembly of Main P.C.B.
• Replacement of Digital Amplifier IC (IC6000)
• Disassembly of SMPS Module and Voltage Selector P.C.B.
• Disassembly of CD Mechanism Unit
• Disassembly of CD Interface P.C.B.
• Disassembly of Fan Unit
10.1.Screw Types
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10.2.Disassembly Flow Chart
10.4.
Top Cabinet
10.5.
Front panel Unit
10.6.
Panel P.C.B.,
LED P.C.B. and
Mic P.C.B.
10.7.
Remote Sensor
P.C.B.
10.8.
USB P.C.B.
10.9.
CD Lid
10.14. CD Mechanism
Unit
10.15.
CD Interface
P.C.B.
10.16. Fan Unit
10.10. Rear Panel
10.11. Main P.C.B.
10.12.Digital Amplifier
IC (IC6000)
10.13.SMPS Module
and Voltage
Selector P.C.B.
28
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10.3.Main Components and P.C.B. Locations
29
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10.4.Disassembly of Top Cabinet
Step 1 Remove 2 screws on each side.
Step 2 Remove 5 screws.
Step 3 Slightly pull both side of Top Cabinet outwards as arrow
shown.
Step 4 Slightly lift up both sides of Top Cabinet in an outward
direction as shown.
Step 5 Remove the Top Cabinet.
Caution: During assembling, ensure that the Top Cabinet
catches are properly inserted into Front Panel Unit.
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10.5.Disassembly of Front Panel
Unit
• Refer to “Disassembly of Top Cabinet”.
Step 1 Detach 5P Cable at the connector (CN2002) on Main
P.C.B..
Step 2 Detach 30P FFC at the connector (CN2000) on Main
P.C.B..
Step 3 Release tab at the left side of Front Panel Unit.
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Step 4 Release tabs at bottom.
Step 6 Remove the Front Panel Unit as arrow shown.
10.6.Disassembly of Panel P.C.B.,
Step 5 Release tab at the right side of Front Panel Unit.
LED P.C.B. and Mic P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove the Volume Knob.
Step 2 Remove the Control Knob.
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Step 3 Remove 7 screws.
Step 4 Release catches by following the sequences (1-8).
Step 5 Lift up the Panel P.C.B. and LED P.C.B. from Front
Panel Unit.
Caution: During assembling, ensure that LED P.C.B. is
properly insert to Front Panel Unit.
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Caution: During assembling, ensure that Panel P.C.B. is
seated properly through the located & fully catched.
Caution: During assembling, ensure that Mic P.C.B. is
seated properly through the located & fully catched.
10.7.Disassembly of Remote Sensor
P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of Panel P.C.B., LED P.C.B. and
Mic P.C.B.”.
Step 1 Remove the Remote Sensor P.C.B..
Caution: During assembling, ensure that Remote Sensor
P.C.B. is properly inserted & fully connected to Panel
P.C.B..
Step 6 Remove 1 screw.
Step 7 Release 1 catch.
Step 8 Remove the Panel P.C.B., LED P.C.B. and Mic P.C.B..
34
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10.8.Disassembly of USB P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove 1 screw.
Step 2 Release 1 catch.
Step 3 Remove the USB P.C.B..
10.9.Disassembly of CD Lid
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove the spring as arrow shown in order of
sequence (1) to (3).
Caution: During assembling, ensure that the spring is
assembly at correct position.
Caution: During assembling, ensure that USB P.C.B. is
seated properly through the located & fully catched.
Step 2 Remove CD Lid as arrow shown.
35
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10.10. Disassembly of Rear Panel
• Refer to “Disassembly of To p Cab in et”.
Step 1 Remove 10 screws.
Step 5 Lift up Inner Chassis Unit to release the catch between
the Inner Chassis Unit and the Rear Panel.
Step 6 Release 2 tabs.
Step 7 Remove Rear Panel.
Step 2 Detach Voltage Selector P.C.B. from Rear Panel as
arrow shown.
Step 3 Release 1 catch at the Fan Unit .
Step 4 Remove the Fan Unit .
36
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10.11. Disassembly of Main P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Rear Panel”.
Step 1 Detach 5P Cable at the connector (CN2002) on Main
P.C.B..
Step 2 Detach 30P FFC at the connector (CN2000) on Main
P.C.B..
Step 3 Detach 13P Cable at the connector (CON2) on SMPS
Module.
Step 4 Detach 10P FFC at the connector (CN8251) on Main
P.C.B..
Step 5 Detach 24P FFC at the connector (FP8201) on Main
P.C.B..
Step 6 Detach 2P Wire at the connector (CN1001) on Main
P.C.B..
Step 7 Remove 2 screws.
Step 8 Remove the Main P.C.B..
Caution: During assembling, ensure that Main P.C.B . is
seated properly through the located & fully guided.
37
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10.12. Disassembly of Digital Amplifier IC (IC6000)
• Refer to “Disassembly of Main P.C.B.”.
10.12.1. Disassembly of Digital Amplifier IC
(IC6000)
Caution: Handle the Main P.C.B. with caution due to it’s
high temperature after prolonged use. Touching it may
lead to injuries.
Step 1 Place the Main P.C.B. on an insulated material.
Step 2 Remove 2 screws.
Step 4 Desolder the pins of the Digital Amplifier IC (IC6000).
Step 5 Remove the Digital Amplifier IC (IC6000).
10.12.2. Assembly of Digital Amplifier IC
(IC6000)
Step 1 Fix the Digital Amplifier IC (IC6000) onto the Main
P.C.B..
Step 2 Solder the pins of the Digital Amplifier IC (IC6000).
Cautions: Ensure that the pins of the Digital Amplifier IC
(IC6000) is positioned correctly on the Main P . C.B. before
soldering.
Step 3 Lift up the Main P.C.B. as arrow shown.
Caution: Keep the Heatsink Spacers in safe place. Avoid
denting it, place it back during assembling.
38
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Step 3 Fix Heatsink spacers onto Main Heatsink..
Caotion: Ensure that the Heatsink Spacers are properly
located and seated flatly onto Main Heatsink.
Step 4 Apply grease to the Main Heatsink as indicate in the dia-
gram.
Caution: Ensure Grease thickness is about 0.2mm.
10.13. Disassembly of SMPS Module
and Voltage Selector P.C.B.
• Refer to “Disassembly of Top Cabinet.”.
• Refer to “Disassembly of Rear Panel”.
Step 1 Detach 13P Cable at a connector (CON2) on the SMPS
Module.
Step 2 Remove 2 screws.
Step 3 Remove the SMPS Module and the Voltage Selector
P.C.B..
Step 5 Upset the Main P.C.B..
Step 6 Fix 2 screws.
Caution: During assembling, ensure that SMPS Module is
seated properly through the located & fully guided.
39
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10.14. Disassembly of CD Mechanism Unit
• Refer to “Disassembly of To p Cab in et”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove 8 screws.
Step 2 Detach Voltage Selector P.C.B. from the Rear Panel.
Step 3 Detach 10P FFC at a connector (CN8251) on Main
P.C.B..
Step 4 Detach 24P FFC at a connector (FP8201) on Main
P.C.B..
Step 5 Detach 2P Wire at a connector (CN1001) on Main
P.C.B..
Step 6 Remove 1 screw.
Step 7 Remove 1 screw.
40
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Step 8 Release 2 catches.
Step 9 Lift up and remove the Inner Chassis Unit.
Step 10 Remove 2 screws.
Step 11 Remove the CD Mechanism Unit.
10.15. Disassembly of CD Interface
Caution: During assembling, ensure that Inner Chassis
Unit is catched onto Rear Panel properly.
P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of CD Mechanism Unit”.
Step 1 Remove 3 screws.
Step 2 Desolder pins of the motor (M7301).
Step 3 Desolder pins of the motor (M7302).
Step 4 Remove the CD Interface P.C.B..
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10.16. Disassembly of Fan Unit
• Refer to “Disassembly of To p Cab in et”.
Step 1 Remove 1 screw.
Step 2 Detach 2P Wire at a connector (CN1001) on the Main
P.C.B..
Step 3 Release 1 catch.
Step 4 Remove the Fan Unit.
Caution: During assembling, ensure that Fan Unit is
catched onto Rear Panel properly.
42
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11 Service Position
Note: For description of the disassembly procedures, see
the Section 10.
11.1.Checking of Panel P.C.B., LED
P.C.B. and Mic P.C.B.
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Remove the Panel P.C.B., the LED P.C.B. and Mic
P.C.B..
Step 4 Positioned the Panel P.C.B., the LED P.C.B. and Mic
P.C.B. on the insulated material as shown.
Step 5 Attach 30P FFC at a connector (CN2000) on the Main
P.C.B..
Step 6 Panel P.C.B., the LED P.C.B. and Mic P.C.B. can be
checked at diagram shown.
11.2.Checking of Main P.C.B. (Side
B)
Step 1 Remove Top Cabinet.
Step 2 Remove Rear Panel.
Step 3 Remove Main P.C.B..
Step 4 Remove 2 screws.
Step 5 Lift up the Main P.C.B. as arrow shown.
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Step 6 Attach 13P Cable at a connector (CON2) on the SMPS
Module.
Step 7 Attach 30P FFC at a connector (CN2000) on the Main
P.C.B..
Step 8 Attach 10P FFC at a connector (CN8251) on the Main
P.C.B..
Step 9 Attach 24P FFC at a connector (FP8201) on the Main
P.C.B..
Step 10 Attach 2P FFC at a connector (CN1001) on the Main
P.C.B..
Step 11 Side B Main P.C.B. can be checked at diagram shown.
11.3.Checking of Main P.C.B. (Side
A)
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Remove Rear Panel.
Step 4 Remove Main P.C.B..
Step 5 Remove SMPS Module and Voltage Selector P.C.B..
Step 6 Positioned the Main P.C.B., SMPS Module and the Volt-
age Selector P.C.B. on the insulated material.
Step 7 Attach 13P Cable at a connector (CON2) on the SMPS
Module.
Step 8 Attach 10P FFC at a connector (CN8251) on the Main
P.C.B..
Step 9 Attach 24P FFC at a connector (FP8201) on the Main
P.C.B..
Step 1 0 Attach 30P FFC at a connector (CN20 00) on the Main
P.C.B..
Step 11 Attach 2P FFC at a connector (CN1001) on the Main
P.C.B..
Step 12 Side A Main P.C.B. can be checked at diagram shown.
44
Page 45
12 Block Diagram
12.1.Servo & System Control
: CD AUDIO INPUT SIGNAL LINE
CD MECHANISM UNIT
BRS11C
OPTICAL
PICKUP UNIT
LOADING P.C.B.
: AUDIO OUTPUT SIGNAL LINE
FP8201
16
FP8201
15
FP8201
20
FP8201
19
FP8201
14
FP8201
10
MD/LPD
FP8201
5
CD-LD
FP8201
6
Q8201
LASER DRIVE
+3.3V
FP8201
F+
23
FP8201
F-
24
FP8201
T+
22
FP8201
T-
21
M7302*
SPINDLEMOTOR
+
SPM-
SPM+
TRV+
+
TRV-
M7301*
TRAVERSE MOTOR
CN7001
CN7001
CN7001
CN7001
LDM+
5
LDM-
4
OPEN SW
3
CLOSE SW
1
LDM+
LDM-
S7201
RESET
REST SWREST SW
OPEN SW
CLOSE SW
CD TRACKING SIGNAL
CN7002 CN8251
92
CN7002 CN8251
101
CN7002 CN8251
110
CN7002 CN8251
29
CN7002 CN8251
38
CN7002 CN8251
47
CN7002 CN8251
74
CN7002 CN8251
56
CN7002 CN8251
83
: USB SIGNAL LINE
IC7704
C3ABMY000027
16M SDRAM
IC8401
C3FBMY000309
16M FLASH
MEMORY
SCLK
SI
SO
IC8501
C3FBXY000042
2GB NAND
FLASH MEMORY
IC8251
C0GBY0000117
5CH MOTOR DRIVER
VOFC+14
VOFC-13
VOTK-16
VOTK+
15
SPM-
VOSP-18
SPM+
VOSP+17
TRV+
VOSL+12
TRV-
VOSL-11
LDM+
VOLD+10
LDM-
VOLD-9
OPEN SW
CLOSE SW
TC - 1
A0 ~ A11
TC - 2
D0 ~ D7
6
5
2
X8101
3DAT0MSDDAT038
4DAT1
5DAT2MSDDAT240
2DAT3
16DAT3
1VINFC
26VINTK
23VINSP
4VINSL
7REV
6FWD
IC8001
MN6627992AB
SERVO
PROCESSOR
123
USBDM1
125
USBDP1
CLKSF33
IO0SF34
IO1SF30
XI190
XO189
MSDDAT137
MSDDAT339
A60
B58
C59
D57
E55
F56
PD61
LD62
FOP48
TRP49
SPOUT50
TRVP51
135
P33AMUTE55
112
SCL5USB IN62
113
SREQ/BLKCKCD BLKCK54
106
SO/STATCD STAT (SYS TXD)73
107
SI/MDATACD MDATA (SYS RXD)72
108
MCLK
105
IRQ1A/MLDCD MLD71
104
NRSTCD RESET61
133
USBNOC
132
USBPP
52
TRVP2
118
AUDIOCLK
117
SRDAT
116
BCLK
115
LRCK
114
SRDATAIN
137
P31
136
P32
P30
134
CD I2S MCLK
CD I2S SDO
CD I2S BCLK
CD I2S LRCK
DAP I2S OUT
DAP I2S LRCKO
DAP I2S BCKO
CD I2S MCLK
CD I2S SDO
CD I2S BCLK
CD I2S LRCK
DAP I2S OUT
DAP I2S LRCKO
DAP I2S BCKO
FROM/TO AUDIO
IC2007
C3EBEY000037
EEPROM
6SCL
5SDA
X2001
X2002
MAIN P.C.B.
IC2006
RFKWMAKX36LM
MICROPROCESSOR
USB REC LED 65
EE CLK29
EE DATA28
XI
15
XO
16
XTIN
13
XTOUT12
CD MCLK74
EMMC/USB2 DET33
BOOT FILE ANALYSIS32
BOOT FILE DET31
LOAD CCW59
LOAD CW60
CD REST SW58
CD OPEN SW57
CD CLOSE SW56
NRST 19
ANALOG SEL1
ANALOG SEL 2
EMO1
EMO2
TU CLK
TU RST
TU SDA
TU INT
DAP RESET
DAP PDN
DAP MUTE
DAP CLK/DSP CLK
DAP SDA/DSP SDA
/DAMP OTW
/DAMP CLIP
/DAMP FAULT
AUTO BASS
BKND ERR
DAP VALID
MPORT SW 79
DAMP RESET
TEMP DET
SMPS ID
SYNC
DC DET2
SMPS BP
ECO CTNRL
PROTECT
POWER
PCONT
USB P.C.B.
CN6400
USB PORT
+5V
D6400
1 VBUS
2D-
3D+
TO SERVO & SYSTEM CONTROL
BLOCK (2/2)
D-
D+
D-
ZJ6400*CN2002
22
D+
ZJ6400*CN2002
33
Q2500
CN2002 ZJ6400*
+5V
SWITCH
D5V
55
D5V
QR2500
LED DRIVE
Q2001
RESET
+3.3V
D2002
5
7
26
27
9
10
8
25
46
47
48
36
34
41
42
43
93
49
50
44
97
95
88
53
70
51
22
23
90
EN
76
OC
75
ANA SEL1
ANA SEL2
TU SDA
TU INT
DAP RESET
DAP PDN
DAP MUTE
DAP SCL
DAP SDA
DAMP OTW
DAMP CLIP
DAMP FAULT
AUTOBASS
BKND ERR
DAP VALID
MPORT SW
DAMP RESET
TEMP DET
SMPS-ID
SYNC
DC DET PWR
ECO CTR
EMO1
EMO2
TU SCL
TU RST
AM-BP
PROT
POWER
PCONT
OC
EN
ANA SEL1
ANA SEL2
EMO1
EMO2
TU SCL
TU RST
TU SDA
TU INT
DAP RESET
DAP PDN
DAP MUTE
DAP SCL
DAP SDA
DAMP OTW
DAMP CLIP
DAMP FAULT
AUTOBASS
BKND ERR
DAP VALID
MPORT SW
DAMP RESET
TEMP DET
SMPS ID
SYNC
DC DET PWR
AM BP
ECO CTR
PROT
POWER
PCONT
EN
OC
FROM/TO AUDIO
FROM/TO POWER SUPPLY
CD INTERFACE P.C.B.
NOTE: “ * ” REF IS FOR INDICATION ONLY
SA-AKX36PH/PN SERVO & SYSTEM CONTROL (1/2) BLOCK DIAGRAM
45
Page 46
: CD AUDIO INPUT SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE
: USB SIGNAL LINE
TO SERVO & SYSTEM CONTROL
BLOCK (1/2)
FAN
MAIN P.C.B.
FAN
DC DET AMP FAN
+16V
QR2001
SWITCH
FROM AUDIO
+
-
POSITIVE
CN1001
-
2
-
CN1001
-
NEGATIVE
-
1
DC DET AMP FAN
IC1001
C0ABBB000067
FAN CONTROL
Q1001,Q1002,Q1003,
Q1004,Q1005,QR1001
CIRCUIT
IC2006
RFKWMAKX36LM
MICROPROCESSOR
LED DIMMER 78
LED RED 82
LED GREEN 83
DC DET1
40
21
FAN OUT120
FAN OUT2
FL DATA 1
FL CS 2
FL CLK 3
VOL JOG A 80
VOL JOG B 81
ROTARY JOG A 67
ROTARY JOG B 68
KEY1 99
LED DIMMER
RED LED
GREEN LED
FL DOUT
FL CS
FL CLK
JOG VOLA
JOG VOLB
JOG ROTA
JOG ROTB
KEY2
S6207
USB
ZJ6700*CN6003
ZJ6700*CN6003
MEMORY LED P.C.B.
LED CALED CA
11
D6700
LED AN
22
S6201
REWIND
S6204
MEMORY
REC/PAUSE
PANEL P.C.B.
QR6001,
S6000
PLAYLIST 2
S6107
CD
OPEN/CLOSE
QR6003,QR6004
LED
LIGHTING
CIRCUIT
D6102,D6103,
D6104,D6105,
DIN
7
STB
9
8
CLK
IC6000
C0HBB0000057
FL DISPLAY
DRIVER
S6001
PLAYLIST 3
S6012
STOP/TUNE MODE
SG1 ~ SG16
GR1 ~ GR12
PLAYLIST 4
PRESET EQ
S6002
S6200
LATIN
CN6001CN2000
LED DIMMER
283
CN6001CN2000
RED LED
427
CN6001CN2000
GREEN LED
328
CN6001CN2000
FL DOUT
1912
CN6001CN2000
FL CS
2011
CN6001CN2000
FL CLK
2110
JOG VOLA
CN6001CN2000
1516
JOG VOLB
CN6001CN2000
1615
JOG ROTA
CN6001CN2000
1318
JOG ROTB
CN6001CN2000
1417
KEY2
CN6001CN2000
247
S6003
PLAYLIST 1
S6203
POWER
VR6100
VOLUME
VR6200
ALBUM/TRACK
+5V
FL6000
FL DISPLAY
F-
F+
S6004
PLAYLIST 5
S6202
MANUAL EQ
LED AN
F-
44
F+
1
S6006
PLAYLIST 6
S6206
D.BASS
REC/PAUSE
NOTE: “ * ” REF IS FOR INDICATION ONLY
KEY2 98
KEY3 94
RMT 86
KEY1
KEY3
KEY1
CN6001CN2000
238
S6103
ALBUM/TRACK
KEY3
CN6001CN2000
256
S6104
MEMORY/USB
S6100
CD
S6101
RADIO/EXT-IN
S6105
PLAY/PAUSE
S6208
FORWARD
REMOTE SENSOR P.C.B.
CN6001CN2000
229
RMTRMT
CN6500CN6002
3,43,4
+3.3V
IR6500
REMOTE SENSOR
SA-AKX36PH/PN SERVO & SYSTEM CONTROL (2/2) BLOCK DIAGRAM
• Important safety notice:
Components identified by mark have special characteris-
tics important for safety.
Furthermore, special parts which have purposes of fire-retardant (resistors), high quality 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.
• Resistor
Unit of resistance is OHM [Ω] (K=1,000, M=1,000,000).
• Capacitor
Unit of capacitance is µF, unless otherwise noted. F=Farads,
pF=pico-Farad.
• Coil
Unit of inductance is H, unless otherwise noted.
•
*
REF IS FOR INDICATION ONL Y.
• Voltage and signal line
Play/Pause (/) switch.
Power () switch.
Forward (/) switch.
: +B signal line
: -B signal line
: CD Audio input signal line
: AUX/Tuner/Music Port Audio input signal line
: Audio output signal line
: USB signal line
: AM signal line
: FM signal line
• Indication Voltage Values are in standard values for the unit mea sured by the DC ele ctronic circuit tester (high-impedance) wi th
the chassis taken as standard.
Therefore, there may exist some errors in voltage values, depending on the internal impedance of the DC circuit tester.
• Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point becau se it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
16.1.1.Main P.C.B. (1/5)
71
Page 72
16.1.2.Main P.C.B. (2/5)
.
REF NO.
MODE12345678
CD PLAY00000003.3
STANDBY00000003.3
REF NO.
MODE12345
CD PLAY5.203.33.35.2
STANDBY5.203.33.35.2
REF NO.
MODE1234567891011121314151617181920
CD PLAY12.1 12.21.22.51.61.62.73.200007.61.61.63.23.23.200