O CD Mechanism Unit, Order No. PSG1303059AE
O Speaker system SB-AKX78PN-K, Order No. PSG1403012CE
O Speaker system SB-AKW78PN-K, Order No. PSG1403012CE (For AKX78)
15.5. Mechanical Replacement Part List ------------------73
15.6. Electrical Replacement Parts List--------------------75
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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. Wh en 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 o hmmeter, 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 th e
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. Th e potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
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 setting 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
Disconnect AC power to discharge AC capacitor as indicate below diagram through a 10 Ω, 10 W resistor to ground.
Figure 1-3
Caution:
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
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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 during Power ON, in FM mode at volume minimal shoul d be ~ 750
mA (PH).
Current consumption at AC 120 V, 60 Hz during Power ON, in FM mode at volume minimal should be ~ 750 mA (PN).
Current consumption at AC 220~240 V, 50 Hz during Power ON, in FM mode at volume minimal should be ~ 750 mA (GN).
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.
1.5.Power Supply using SMPS
This model uses Switching Mode Power Supply (SMPS) to provide the power supply to the unit. Here is the supplied part no. for the
SMPS Module
1) N0AB2GP00001 (For PN)
2) N0AD2GP00001 (For PH)
3) N0AC2GP00001 (For GN)
1.5.1.For PN
Figure 1-4
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1.5.2.For PH
1.5.3.For GN
Figure 1-5
Figure 1-6
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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
13RGR0443E-D1A REAR PANELAKX78PN
13RGR0443R-AAREAR PANELAKX58PH
13RGR0443S-AAREAR PANELAKX78PH
13RGR0443U-A1A REAR PANELAKX58PN
13RGR0443U-BAREAR PANELAKX58GN
25RKM0713-K1TOP CABINET
301RAE1044Z-VTRAVERSE UNIT
A2K2CB2CB00022 AC CORDAKX58PN,
A2K2CJ2YY00093 AC CORDAKX58GN
A2K2CQ2YY00119 AC CORDAKX58PH,
A3RQT9895-2MO/I BOOK (En/Sp)AKX58PH/PN,
A3RQT9898-LO/I BOOK (En)AKX58GN
A3RQT9958-1BO/I BOOK (En)AKX58PH/PN,
PCB7N0AB2GP00001 SMPS MODULEAKX58PN,
PCB7N0AC2GP00001 SMPS MODULEAKX58GN
PCB7N0AD2GP00001 SMPS MODULEAKX58PH,
AKX78PN
AKX78PH
AKX78PH/PN
AKX78PH/PN
AKX78PN
AKX78PH
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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 damag e caused by electrostatic 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, p lace the assembly on a cond ucti ve surface su ch as a luminum 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 lif ting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).
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.
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Figure 2-1
2.3.General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting proce ss of a ll electrical components on the printed circuit board s 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 ma inly 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 th e 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%
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 b ody. 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 un it may be damaged due to electrostatic discharge generating from clothes 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 prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed
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 FFC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi-
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ble cable, cut off the antistatic FFC.
Figure 2-2
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 wil l be fol lowed by supplemen t service manual to be filed with original se rvice
manual.
3.1.1.Firmware Update Procedur e
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4Specifications
Q Amplifier section
RMS output power stereo mode
Front Ch (high)270 W per channel (3 Ω),
1 kHz, 30% THD (SA-AKX78)
300 W per channel (3 Ω),
1 kHz, 30% THD (SA-AKX58)
Front Ch (low)420 W per channel (2 Ω),
100 Hz, 30% THD (SA-AKX78)
450 W per channel (2 Ω),
100 Hz, 30% THD (SA-AKX58)
Subwoofer channel420 W per channel (2 Ω),
100 Hz, 30% THD (SA-AKX78)
Total RMS stereo mode power
1800 W (30% THD) (SA-AKX78)
1500 W (30% THD) (SA-AKX58)
Q Disc section
Discs played (8 cm or 12 cm)CD, CD-R/RW(CD-DA, MP3*)
Pick up
Wavelength790 nm(CD)
* MPEG-1 Layer 3
Q USB section
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.)
Dimensions (W x H x D)230 mm x 335 mm x 252 mm
Mass3.7 kg (SA-AKX78)
3.5 kg (SA-AKX58)
Operating temperature range0 °C to +40 °C
Operating humidity range35% to 80% RH
Power Consumption in standby
mode
Power Consumption in standby
mode (With "STANDBY BLUETOOTH" set to "ON")
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-AKX58PN-K
Q System: SC-AKX58PH-K
Q System: SC-AKX58GN-K
Q System: SC-AKX78PN-K
0.4 W (approximate) (for PH)
0.3 W (approximate) (for PN)
Main Unit: SA-AKX58PN-K
Front Speakers: SB-AKX78PN-K
Main Unit: SA-AKX58PH-K
Front Speakers: SB-AKX78PN-K
Main Unit: SA-AKX58GN-K
Front Speakers: SB-AKX78PN-K
Main Unit: SA-AKX78PN-K
Front Speakers: SB-AKX78PN-K
Subwoofer: SB-AKW78PN-K
(no condensation)
0.6 W (approximate)
USB recording
Bit rate128 kbps
USB recording speed1x, 3x max. (CD only)
Recording file formatMP3 (*.mp3)
Q Internal Memory section
Memory
Memory Size2 GB
File format support mediaMP3 (*.mp3)
Recording internal memory
Q System: SC-AKX78PH-K
Main Unit: SA-AKX78PH-K
Front Speakers: SB-AKX78PN-K
Subwoofer: SB-AKW78PN-K
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5Location of Controls and Components
5.1.Remote Control Key Button Operation
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5.2.Main Unit Key Button Operation
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6Service Mode
6.1.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
6.2.Sales Demonstration Lock Function
6.2.1.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.
Note: [
OPEN/CLOSE] button is invalid and the main unit displays “LOCKED” while the lock function mode is entered.
6.2.2.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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6.3.Service Mode Table
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6.4.Doctor Mode Table
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Doctor Mode
EEPROM
checksum
check
To enter into Doctor ModeIn CD Mode:
1. Press [ ] button on
main unit follow by [4]
and [7] on remote control.
In CD mode:
1. Enter into Doctor Mode
2. To exit, press [DELETE]
button on remote control or,
press [POWER, /I] button on
Main Unit
Displaying of
1. Year Develop.
2. Model Type.
3. ROM Type.
4. Firmware Version.
(Display 1) (For AKX58)
(Display 2)
Checksum (Hex)
Cold Start
To active cold start upon next AC
power up when reset start is
execute the next time.
In Doctor Mode:
1. Press [SLEEP] button on
the remote control.
Version No. (001 ~ 999) specific for each
firmware
(Decimal)1 2 34
(Display 1) (For AKX78)
(Decimal)
1 2 34
6.4.1.Doctor Mode Table 1
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6.4.2.Doctor Mode Table 2
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Volume Setting
Check
FL Display Check
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.
In Doctor Mode:
1. Press [7], [8], [9] button on
the remote control.
In Doctor mode:
1. Press [1] button on the
remote control.
2. To cancel this mode, press
[0] button on the remote control.
Press [7]: VOL50
Press [8]: VOL35
Press [9]: VOL0
Volume
In this mode, the tray will open & close
automatically.
Cancellation Display
Loading TestTo determine the open & close
operation of the CD Mechanism Unit.
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
Traverse TestTo determine the traverse unit
operation for inner & outer access track.
The counter will
increment by one.
When reach 99999999
will change to 00000000
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
Reliability Test
(Combination)
In this mode, ensure the CD is in the
main unit.
To determine the traverse unit
operation & open/close operation of the
mechanism.
In this mode, ensure the CD is in the
main unit.
In Doctor Mode:
1. Press [10] [2] [1] button
on the remote control.
In Doctor Mode:
2. To cancel this mode, press
[0] button on the remote control.
1. Press [10] [1] [2] button
on the remote control.
In Doctor Mode:
1. Press [10] [1] [5] button
on the remote control.
2. To cancel this mode, press
[0] button on the remote control.
2. To cancel this mode, press
[0] button on the remote control.
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6.4.3.Doctor Mode Table 3
CD
Self- Adjustment
Test
CD LSI Version
Check
Item
DescriptionMode Name
To display result of
self-adjustment for CD operation.
To check the CD LSI Version and
its checksum.
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).
(Display 1)
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.
In Doctor Mode:
1. Press [4] button on the
remote control.
Bluetooth
Version Check
Bluetooth module will need some
time to power up and read the
version display.
Meanwhile [_BT_ll----_] will show
before the ver. numbers appear.
2s display count should start after
flash version number appear.
ROM
Version (Decimal)
Type
Year Develop
(Display 2)
Checksum (Hex)
v = flash version (0~7),
w = flash sub version (0~F),
x = control version (0~F),
yyy = EEPROM version (0~255),
zz = EEPROM sub version (0~99),
after
2 sec
( 2 sec)
( 2 sec)
To cancel this mode, press [0]
button on the remote control.
1. Go to Bluetooth selector and
enter Doctor Mode.
2. Press [10] [2] [4] and
display will show.
Bluetooth Check 1. Bluetooth device will start
pairing.
2. Once connected it wll autoplay
for 5 sec and auto disconect.
1. Go to Bluetooth selector and
enter Doctor Mode.
2. Press USB[O/II] on remote
control.
3. Device will display
SC-MAX250-X,
SC-MAX150-X.
(X = region number)
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6.5.Self-Diagnostic Mode
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Self Diagnostic
Mode
To enter into self diagnostic checkingStep 1: Select CD mode
(Ensure no disc is inserted).
To exit, press [
8
] on main unit or
remote control.
Step 2: Press & hold [g] button
follow by [y/i] on
main unit for 2 seconds.
Error Code
Information
System will perform a check on
any unusual/error code from the
memory
Example:Step 1: In self diagnostic mode,
Press [g] on main unit.
To exit, press [8] on main unit or
remote control.
Delete error code To clear the stored in memory
(EEPROM IC)
Step 1: In self diagnostic mode,
Press [0] on remote control.
Error CodeDiagnostic ContentsDescription of errorAutomatic FL DisplayRemarks
CD H15CD Open AbnormalDuring operation
POS_SW_R On fail to be
detected with 4 sec. Error
No. shall be clear by force
or during cold start.
Press [ ] on main unit
for next error.
Press [ ] on main unit
for next error.
Press [ ] on main unit
for next error.
CD H16CD Closing AbnormalDuring operation
POS_SW_CEN On fail to
be detected with 4 sec.
Error No. shall be clear by
force or during cold start.
F26Communication betw een
CD servo LSI and micro-p
abnormal.
During switch to CD function, if SENSE = “L” within
failsafe time of 20ms.
6.6.Self-Diagnostic Error Code Table
Self-Diagnostic Function provides information on any problems occurring for the un it 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.
6.6.1.Power Supply Error Code Table
6.6.2.CD Mechanism Error Code Table
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6.6.3.Bluetooth Error Code Table
of errorAutomatic FL DisplayRemarks
F70
Bluetooth Communication
Communication between
Bluetooth module and
micro-p abnormal
Press [
] on main unit for
next error.
F77
Bluetooth Address Error
If there is no valid Bluetooth
address stored in the
EEPROM IC
Press [
] on main unit for
next error.
Error CodeDiagnostic ContentsDescription of error
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7Troubleshooting Guide
“Contents for this section is not available at time of issue”
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8Disassembly and Assembly Instructions
• Illustration is based on SA-AKX78PH-K.
• 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 this 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 handle with care as there may be chassis components with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use.
• Be sure to use proper service tools, equipments or jigs during repair.
• 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. and Music Port P.C.B.
• Disassembly of Bluetooth P.C.B.
• Disassembly of USB P.C.B.
• Disassembly of Rear Panel
• Disassembly of Main P.C.B.
• Disassembly of SMPS P.C.B. and Voltage Selector P.C.B.
• Disassembly of CD Mechanism Unit
• Disassembly of CD Interface P.C.B.
8.1.Type of Screws
8.2.Disassembly Flow Chart
Front Panel Unit
Panel P.C.B. and
Music Port P.C.B.
Bluetooth P.C.B.
USB P.C.B.
Top Cabinet
Main P.C.B.Rear Panel
CD Mechanism Unit
CD Interface P.C.B.
SMPS P.C.B. and
Voltage Selector P.C.B.
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8.3.Main Components and P.C.B. Locations
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8.4.Disassembly of Top Cabinet
Step 1 Remove 4 screws.
Step 2 Remove 5 screws.
Step 3 Release both sides of Top Cabinet outwards as arrow
shown.
8.5.Disassembly of Front Panel
Unit
• Refer to “Disassembly of Top Cabinet”.
Step 1 Detach 30P FFC at the connector (CN2506) on Main
P.C.B..
Step 2 Detach 8P Cable at the connector (CN2511) on Main
P.C.B..
Step 3 Detach 4P Cable at the connector (CN2510) on Main
P.C.B..
Step 4 Release tabs on both side of Front Panel Unit.
Step 4 Slightly lift up to remove Top Cabinet.
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Step 5 Release tabs at bottom of unit.
Step 6 Detach to remove Front Panel Unit
8.6.Disassembly of Panel P.C.B.
and Music Port P.C.B.
• Refer to “Disassembly of Top Cabi net”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove Volume Knob.
Step 2 Remove Control Knob.
Step 3 Remove 7 screws.
Step 4 Release catches.
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Step 5 Detach 12P FFC at the connector (P7701) on Bluetooth
P.C.B..
Step 6 Remove Panel P.C.B. and Music Port P.C.B..
Step 3 Detach 12P FFC at the connector (P7701) on Bluetooth
Step 5 Lift up to remove Inner Chassis Unit.
Step 6 Release tabs.
Step 7 Release to remove Rear Panel.
Step 2 Detach Voltage Selector P.C.B..
Step 3 Release catch.
Step 4 Remove fan unit.
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8.10.Disassembly of Main P.C.B.
• Refer to “Disassembly of Top Cabinet”.
Step 1 Detach 30P FFC at the connector (CN2506) on Main
P.C.B..
Step 2 Detach 8P Cable at the connector (CN2511) on Main
P.C.B..
Step 3 Detach 4P Cable at the connector (CN2510) on Main
P.C.B..
Step 4 Detach 2P Wire at the connector (CN2101) on Main
P.C.B..
Step 5 Detach 2P Wire at the connector (CN2102) on Main
P.C.B..
Step 6 Detach 13P Cable at the connector (CON2) on SMPS
P.C.B..
Step 7 Remove 4 screws.
Step 8 Remove 2 screws.
Step 9 Detach Main P.C.B..
29
Page 30
Step 10 Detach 24P FFC at the connector (P5002) on Main
P.C.B..
Step 11 Detach 10P FFC at the connector (P5102) on Main
P.C.B..
Step 12 Remove Main P.C.B..
Step 2 Detach 13P Cable at the connector (CON2) on SMPS
P.C.B..
Step 3 Detach 2P Wire at the connector (CN2101) on Main
P.C.B..
Step 4 Detach Voltage Selector P.C.B..
8.11.Disassembly of SMPS P.C.B.
and Voltage Selector P.C.B.
• Refer to “Disassembly of Top Cabinet”.
Step 1 Remove 2 screws.
30
Page 31
Step 5 Remove 3 screws.
Step 6 Remove fan unit.
8.12.Disassembly of CD Mechanism Unit
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of Main P.C.B.”.
Step 1 Remove 5 screws.
Step 7 Release P.C.B. Spacer.
Step 8 Remove SMPS P.C.B. and Voltage Selector P.C.B..
Step 4 Release catches.
Step 5 Lift up and remove Inner Chassis Unit.
8.13.Disassembly of CD Interface
P.C.B.
• Refer to “Disassembly of Top Cabi net”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of Main P.C.B.”.
• Refer to “Disassembly of CD Mechanism Unit”.
Step 1 Remove 2 screws.
Step 2 Desolder pins of the motor (M7301).
Step 3 Desolder pins of the motor (M7302).
Step 4 Remove CD Interface P.C.B..
Step 6 Remove 2 screws.
Step 7 Remove CD Mechanism Unit.
32
Page 33
9Service Position
Note: For description of the disassembly procedures, see
the Section 8.
9.1.Checking of Panel P.C.B. and
Main P.C.B.
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Positioned the Front Panel Unit as shown.
Step 4 Attach 30P FFC at the connector (CN2506) on Main
P.C.B..
Step 5 Attach 8P Cable at the connector (CN2511) on Main
P.C.B..
Step 6 Attach 4P Cable at the connector (CN2510) on Main
P.C.B..
Step 7 Panel P.C.B. and Main P.C.B. can be checked as diagram shown.
9.2.Checking of SMPS P.C.B. and
Voltage Selector P.C.B.
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Remove SMPS P.C.B..
Step 4 Positioned the Front Panel Unit as shown.
Step 5 Attach 30P FFC at the connector (CN2506) on Main
P.C.B..
Step 6 Attach 8P Cable at the connector (CN2511) on Main
P.C.B..
Step 7 Attach 4P Cable at the connector (CN2510) on Main
P.C.B..
Step 8 Attach 13P Cable at the connector (CON2) on SMPS
P.C.B..
Step 9 Place the SMPS P.C.B. and Voltage Selector P.C.B. on
the insulated material.
Step 10 SMPS P.C.B. and Voltage Selector P.C.B. can be
checked as diagram shown.
33
Page 34
34
Page 35
10 Block Diagram
SA-AKX58GN/PH/PN,SA-AKX78PH/PN SYSTEM CONTROL (1/3) BLOCK DIAGRAM
TO SYSTEM CONTROL
BLOCK (2/3)
: CD AUDIO INPUT SIGNAL LINE
: USB SIGNAL LINE
: TUNER/AUX AUDIO INPUT SIGNAL LINE
SOC
C1AB00004188
IC1001
FROM/TO AUDIO
NOTE: “ * ” REF IS FOR INDICATION ONLY
USB P.C.B.
+5V
1 USB5V
USB B D-
USB B D+
USB PORT B
(REC/PLAY)
JK6401
2-D
3+D
USB B D-
USB B D+
55
CN6401CN2511
44
CN6401CN2511
+5V
1 USB5V
USB A D-
USB A D+
USB PORT A
(PLAY)
JK6400
2-D
3+D
USB A D-
USB A D+
53
CN6401CN2511
62
CN6401CN2511
Q1001
SWITCH
GPIO6 32
SSCS 25
SSDI 26
KPX2
I/O EXPANDER
C0ZBZ0002175
IC1202
36
KPY10
3
EXIT100
4
KPY7
28
KPX3
9
KPY0
7
KPY9
5
KPY522
ANALOG SEL
ANALOG SEL2
TUN RST
DSP RESET
DSP MUTE
MPORT DET
KPY2
10
DAMP RST
USB DP 98
USB DM 97
GPIO10 93
88
CN2511 CN6401
USBLED PLAYUSBLED PLAY
+
+
AC50
BD51
E54
F55
PD56
LDO57
TDOUT62
CLVOUT64
SDOUT63
GPIO531
GPIO329
GPIO430
SSDO28
SSCLK27
FDOUT61
56
CN7002 P5102
OPEN SW
83
CN7002 P5102
CLOSE SW
SPM-
92
CN7002 P5102
SPM+
101
CN7002 P5102
TRV+
110
CN7002 P5102
TRV-
29
CN7002 P5102
LDM+
38
CN7002 P5102
LDM-
LDM+
LDM-
47
CN7002 P5102
SPINDLEMOTOR
M7302*
TRAVERSE MOTOR
M7301*
CD INTERFACE P.C.B.
+3.3V
Q5001
LASER DRIVE
23VINLD
5CH MOTOR DRIVER
C0GBY0000213
IC5001
VOLD+17
VOLD-18
VOSL+11
VOSL-12
VOFC+14
VOFC-13
VOTK-16
VOTK+
F+
F-
T-
T+
CD-LD
MD/LPD
15
VOTR+10
VOTR-9
26VINTK
7REV
6FWD
23
P5002
24
P5002
21
P5002
22
P5002
6
P5002
5
P5002
OPEN SW
3
CN7001
CLOSE SW
1
CN7001
1VINFC
16
P5002
15
P5002
20
P5002
19
P5002
10
P5002
14
P5002
4VINSL+
OPTICAL
PICKUP UNIT
CD
LOADING P.C.B.
CLOSE SW
OPEN SW
74
CN7002 P5102
RESET SWRESET SW
5
CN7001
LDM+
4
CN7001
LDM-
SPM-
SPM+
TRV+
TRV-
CD MECHANISM UNIT
CD TRACKING SIGNAL
RESET
S7201
USB SWITCH
C0JBAS000401
IC9001
/OE 8
1D+ 5
1D- 4
2D+ 7
2D- 6
S10
D+1
D-2
PANEL P.C.B.
BT UART TX
2011
CN6001 CN2506
BT UART TX
121
P7701* CN6002
HOST WAKE
229
CN6001 CN2506
HOST WAKE
103
P7701* CN6002
BT UART RX
2110
CN6001 CN2506
BT UART RX
112
P7701* CN6002
NFC IRQ
283
CN6001 CN2506
NFC IRQ
310
P7701* CN6002
BT UART RTS
256
CN6001 CN2506
BT UART RTS
76
P7701* CN6002
LDO ON R
238
CN6001 CN2506
LDO ON R
94
P7701* CN6002
KPX6
24
GPIO772
UART0 RXD
101
UART0 TXD
102
NFC IRQ
117
UART0 RTS
103
BLUETOOTH
CIRCUIT
NFC
CIRCUIT
BLUETOOTH
DEVICE
FREQUENCY
NFC
DEVICE
FREQUENCY
BLUETOOTH/NFC KIT
I2C SCL
I2C SDA
MAIN P.C.B.
PANEL P.C.B.
POWER
S6200
OPEN/CLOSE
S6201
STOP
S6202
301
CN6001CN2506
JOG VOL A
JOG VOL A
VOLUME
VR6100
292
CN6001CN2506
JOG VOL B
JOG VOL B
GPIO1 14
GPIO2 15
1714
CN6001CN2506
JOG ROT A
JOG ROT A
CONTROL
VR6200
1813
CN6001CN2506
JOG ROT BJOG ROT B
247
CN6001CN2506
KEY1
ADIN0 34
KEY1
130
CN6001CN2506
+3.3V
REMOTE SENSOR
IR6500
RMTRMT
RCR
120
SDA0 76
SCL0 75
+5.6V
QR9003
LED DRIVE
Q9003
SWITCH
D6400
KPY8 38
USBLED PLAY2
+5.6V
QR9001
LED DRIVE
Q9005
SWITCH
KPX3 37
USBLED PLAY1
+5.6V
QR9002
LED DRIVE
Q9004
SWITCH
10.1.System Control
35
Page 36
SA-AKX58GN/PH/PN,SA-AKX78PH/PN SYSTEM CONTROL (2/3) 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
: +B signal line
: -B signal line
: CD Audio input signal line
: AUX/Tuner/Mic Audio input signal line
: Audio output signal line
: USB signal line
: AM signal line
: FM signal line
43
Page 44
44
Page 45
12.2.Main (CD Motor Driver) Circuit
A
E
1
A
SCHEMATIC DIAGRAM - 1
MAIN (CD MOTOR DRIVER) CIRCUIT
B
TO
CD INTERFACE
CIRCUIT (CN7002)
IN SCHEMATIC
C
D
DIAGRAM - 14
234567891011121314
: +B SIGNAL LINE
C5114
100P
C5115
100P
C5116
100P
C5117
P5102
1
10
TRV+
TRV-
LDM+
LDM-
OPEN_SW
DGND
RESET_SW
CLOSE_SW
SPM+
SPM-
1000P
10
9
8
7
6
5
4
3
2
1
C5122
100P
C5121
100P
C5120
1000P
C5119
1000P
K5010
0
C5118
100P
K5001 0
K5002 0
K5003 0
K5004 0
K5005 0
K5006 0
K5007 0
K5008 0
K5009 0
TRV+
TRV-
LDM+
LDM-
SPM-
SPM+
C5009
C5010
0.01
F-
F+
TRV-
LDM-
TRV+
LDM+
J0JBC0000010
J0JBC0000010
J0JBC0000010
LB5007
LB5006J0JBC0000010
LB5009
LB5008
10
LB5003
J0JHC0000045
VOTK+ VOFC+
VOFC-
VOTK-
11 101314 128 299
VOSL-
VOLD+
VOSL+VOLD-
PVCC VOTR+
VOTR-
NC
VCCVCTL
7
FIN
FIN
63
REV
FWD
GND
VINLD
23
: CD AUDIO INPUT SIGNAL LINE
21
54
C0GBY0000213
VINFC
TRB_1
VINSL+TRB_2
REGO1
REGO2
NC
MUTE
BIAS
VINTK
27
24 252217 191815 163020 21
26 28
IC5001
5CH MOTOR DRIVER
R5014 0
R5012 0
R5015 0
R5017 0
C5014
10P
C5016
10P
C5013
10P
C5015
10P
R5011 6.8K
R5013 47K
R5016 100K
R5018 15K
C5022
68P
OPEN_SW
INNER_SW
CLOSE_SW
PW_CD_+5R6V
LD_CCW
LD_CW
TRVDRV
FODRV
TRDRV
SPDRV
SO
SO
SO
VR
SO
SO
SO
SO
SO
SO
A
B
C
D
10V100
C5011
T-
R5019
4.7
C5018
0.01
SPM+
SPM-
LB5011
J0JBC0000010
C5019
R5009
1.2K
R5020
100K
0.1
R5021
4.7
C5021
10V100
C5020
10V100
R5008
100
LB5004
J0JHC0000045
R5038 0
R5037 0
LB5005
J0JBC0000134
R5022
R5039
0
AC
BD
VBIAS
LDO
MD
VR
VR
SO
SO
F
SO
SO
E
SO
SO
SO
VR
SO: MAIN (SOC I/O EXPANDER): SCHEMATIC DIAGRAM - 3 ~ 4
VR: MAIN (VREG FAN): SCHEMATIC DIAGRAM - 10 ~ 12
E
F
G
H
PW_CD_3R3V
CDMOTOR_GND
8
7
65
4
3
21
RX5001
D1H81034A042
R5006
68K
C5007
2200P
C5008
R5005
1K
2200P
68K
SYS5V_GND
SA-AKX58GN/PH/PN,SA-AKX78PH/PN MAIN (CD MOTOR DRIVER) CIRCUIT
TO
PANEL CIRCUIT
(CN6004)
IN SCHEMATIC
DIAGRAM - 13
MPORT_IN_GND
MPORT_IN_R
MPORT_IN_L
1
2
3
4
NC
5
C6319
330P
C6318
330P
C6322
L6302J0JBC0000019
L6301J0JBC0000019
L6300 0
: AUX AUDIO INPUT SIGNAL LINE
7
6
C6320
C6321
0.1
0.01
0.01
1
2
3
4
5
JK6301
AUX IN 2
CN6401
PW_USBA_5V
PW_USBB_5V
USBLED_PLAY
DGND
USB_A_D+
USB_A_D-
USB_B_D+
USB_B_D-
: +B SIGNAL LINE: +B SIGNAL LINE
1
2
3
4
5
6
7
8
: USB SIGNAL LINE
R6400
B3AAA0000487
330
LB6400 J0JHC0000118
D6400
B3AAA0000487
LB6401 J0JHC0000118
D6401
JK6400
G
4
DGND
3
+D
-D
USB5V
G
USB PORT A
(PLAY)
2
1
JK6401
G
4
DGND
3
+D
-D
USB5V
G
USB PORT B
(REC/PLAY)
2
1
A
B
C
D
E
E
CD INTERFACE CIRCUIT
F
M7302*
SPINDLE MOTOR
+
G
H
NOTE: “ * ” REF IS FOR INDICATION ONLY
31
4
2
S7201
RESET
+
M7301*
TRAVERSE MOTOR
1234567891011121314
LDM+
5
LDM-
4
3
OPEN_SW
2
DGND
CLOSE_SW
1
SPM+
10
SPM-
9
CLOSE_SW
8
REST_SW
7
DGND
6
OPEN_SW
5
LDM-
4
LDM+
3
TRV-
2
TRV+
1
CN7001
CN7002
TO CD LOADING P.C.B.
1
TO
MAIN (CD MOTOR DRIVER)
CIRCUIT (P5102)
IN SCHEMATIC
DIAGRAM - 1
10
SA-AKX58GN/PH/PN,SA-AKX78PH/PN USB / MUSIC PORT / CD INTERFACE CIRCUIT
F
G
H
58
Page 59
13 Printed Circuit Board
13.1.Main P.C.B. (Side A)
A
MAIN P.C.B. (RFKV5075AA...AKX78PN)
H
(RFKV5075BA...AKX78PH)
(RFKV5075EA...AKX58PN)
(RFKV5075FA...AKX58PH)
(RFKV5075HA...AKX58GN)
G
F
E
D
C
B
C2509
C2510
R50
C2511
C2174
R3203
C3209
C2539
R3524
C3538
R3548
R3207
R3523
C3210
LB2516
LB2515
LB2517
C4017
R3208
R3547
C3548
LB2500
LB4001
R3111
C3535
R3114
C3220
R2584
LB4002
R3520
C3534
R2507
R3519
R3546
R3209
C3221
R3110
R4589
R2562
R2559
C2530
R3103
R3553
R3106
R2558
R2569
C3109
C3526
R3113
R3107
R3552
R3511
C3110
K3100
LB2513
R2581
LB2514
3
2
1
R2225
R2555
R3315
R3542
C2176
C3322
R3211
R6119
R2211
R3115
R6120
C2100
R3210
R2585
R3206
R3549
C3539
C2512
C2513
C2177
C2104
IC2104
R2236
D2104
R2157
C2134
R2156
C2136
(FOR AKX78PH/PN)
C3304
R3317
R3303
R3316
(FOR AKX78PH/PN)
L51
C3550
C3551
R3534
C3549
C51
R3537
R76
C3313
R3313
R3544
R3312
C3542
R3527
R6116
R6114
R6115
C6108
C66
LB51
R3545
C3314
R6113
C6121C6109
C6120
R6112
K3200
K3201
R3314
R3543
C3543
C3321
R3528
Q3503
E
C
B
R3536
Q3502
E
C
B
R3535
E
C
Q3500
B
R3533
E
C
B
R78
Q3501
R77
R74
R79
R75
R80
R73
L54
C6217
C52
C64
R3551
R3108
R3016
C3527
C3120
R3512
C1206
R3017
C1201
C1205
LB2528
R3003
R1236
C3121
R3109
C1202
K3101
C1204
R3550
C1203
LB1201
C2529
R3012
R3557
C3004
R3112
C3013
R2505
C3522
R3507
R2504
R3013
C3014
R3018
K3000
R3556
C3021
K3001
R3014
R3555
C3523
R3508
C1021
R3015
C1042
R3019
C1041
C3022
R3554
LB2534
R1104
R1103
1
2
3
LB2533
5
IC1002
4
R1015
R1068
R1067
LB2531
LB2532
(FOR AKX78PH/PN)
C1001
R1115
R2235
R2216
QR2102
D1001
R2246
C1007
B
E
Q1002
C
C1003
C2168
C1005
C2167
E
B
C
C1004
1
2
3
C1006
C1002
IC2108
Q2117
R2202
R5021
C5018
C5007
R5023
Q5001
B
R5020
C
E
R5019
R5022
R1119
LB1005
R1118...AKX78PH/PN
R1114
IC2107
1
4
32
C2164
C2165
E
R2201
C
B
R2200
C5008
R5005
LB5018
LB5017
LB5010
15
21
C5011
3029
IC5001
22
28
R5038
R5037
B
Q2119
E
R2209
R5006
C5014
R2245
R2215
R2210
C
C2183
LB5016
LB5011
R5014
LB5015
14
8
7
1
R5012
LB5102
LB5009
LB5006
C5121
R2205
R2208
LB5007
C5010
C5009
LB5003
C5116
R2244D2111
R1096
LB5008
C5122
C5115
C5101
C5114
C5119
C5120
C5102
R9013
C5118
C5104
C5103
PbF
LB5001
3765BA3765BA
A
(SIDE A)
1
SA-AKX58GN/PH/PN,SA-AKX78PH/PN
MAIN P.C.B.
2
3
4
5
6
7
8
9
1011213
1
59
Page 60
13.2.Main P.C.B. (Side B)
A
MAIN P.C.B. (RFKV5075AA...AKX78PN)
(RFKV5075BA...AKX78PH)
H
(RFKV5075EA...AKX58PN)
(RFKV5075FA...AKX58PH)
(RFKV5075HA...AKX58GN)
G
F
E
D
C
B
C2149
C2180
P5102
10
8
6
4
2
P5002
2
4
6
8
10
12
14
16
18
20
22
24
C2006
IC2001
153
14
58
C2011
C1048
C1015
C
C2012
LB1010
LB2103
C2009
LB2001
LB1009
C1049
C1016
C2138
LB1008
R1127
LB1003
LB1026
R2203
C2531
R1128
C1024
R1066
R1108
C2532
R2006
LB1028
1
R2001
LB1029
C1008
33
35
40
45
50
55
60
64
LB1027
LB1025
C2533
53
R2003
LB1033
R1065
R1107
ZJ1*
C5020
LB5005
K5005
K5003
K5006
K5004
K5007
K5002
K5001
Q1001
K5009
K5008
R5009
C5012
R5010
R5015
C5016
R5013
C5013
R2177
C2153
10
15
R2207
C2171
C2107
R2238
R2175
C2150
R2181
R2196
Q2116
6
IC2101
R2178
B
E
R2176
LB2101
R2197
C
R2204
C2151
R5017
R5039
D5001
C5022
C5015
R2239
ZJ2*
9
7
C5117
5
3
1
K5010
1
3
5
7
9
11
13
15
17
19
21
23
C2155
L2102
R2179
D2107
R2248
C2187
C2152
R2174
C2181
C2148
R5007
R5008
C1018
R5018
LB5004
B
R5016
LB2100
R1106
C
R1105
C2142
C5019
R1043
R1032
R1031
R1029
R1044
E
C1017
L2101
R2187
R2237
CN2103
C1013
R1069
C2182
C2115
C2534
C5021
R1033
C1033
C1014
R1045
C1035
C1010
LB1002
C2128
R1046
R2232
C2117
C1034
C1032
R5011
R2167
D2106
R1047
C1036
C1031
R1095
C1011
R1001
P1002
R2164
C2140
15
R2198
R1034
R1003
R1002
1
3
5
7
C2179
R2166
610
C2139
R2180
B
E
Q2114
RX5001
C1012
C1025
2
4
6
8
C2144
R2165
IC2103
R2168
102
97
140
R2007
C2010
C2008
C2005
R2004
LB1030
LB1031
LB1032
LB1001
IC1001
65
70 75 80 85 90 95 96
R1022
R1012
R1023
R1013
R1011
R1006
R1014
1
2
3
45
R1005
R1004
C1020
LB1006
C2137
C2145
R2234
CA
A
D2109
R2233
C
4123
CN2504
R2002
R2005
R1078
R1060
C1023
IC1003
R1059
C2007
C2004
C2003
R1058
R1008
C1019
C2002
C2013
R1057
12346789131011125
C2001
R1056
15101520253032
LB1016
R1055
R1024
LB1040
R1025
128
125
120
115
110
105
100
97
C1009
C1022
LB1017
8
7
6
R2105
CN2101
LB1034
R1132
R1133
LB1039
LB1038
LB1037
LB1018
R1007
C2102
LB1035
LB1036
R1027
R2104
Q2101
12
R1009
C1027
4321
R1026
R1100
LB1007
C
C1043
1234
C1040
C1026
X1001
C1029
C1028
C1030
R1028
R1048
R1049
R1018
R1021
R1017
R1016
R1117
R1038
LB1012
LB1013
L3001
1
2
R2106
R2109
BE
BE
QR2101
C
(FOR AKX78PH/PN)
5678
R1120
X1002
LB1014
HEATSINK
IC1004
R1121
LB1004
R1101
C1047
R1020
R1019
LB1015
P1003
R1097
1
2
3
4
5
6
L3000
4
3
4321
R2500
R3009
R3004
R3011
C3007
R3005
R3007
C3006
22 20 15 10 5 1
IC3001
C3018
C3027
C3026
C3019
C3020
1
2
C3554
C3553
R3505
C3502
1
CN2510
R2501
23
25
30
33
C3005
C3011
R3506
C3503
C3010
C3012
212
R1215
R1214
R1216
IC1202
3435 40 44
R1225
R3001
R3002
R3000
C3001
C3003
C3002
444035302523
C3008
C3009
L3101
1
4
2
3
C3558
C3557
R3517
C3509
C3508
3
4
R1226
R3518
12152022
R1227
C3506
R1229
5
1654732
1
LB9003
R9012
C9001
R9003
IC9001
R1213
11
10
5
1
QR1201
C
R3510
R3509
C3504
T9001
7
8
10
E
B
R1228
R3105
6
R2568
43
21
6
4321
5
3
2
1
T9002
R1123
IC9002
R3538
C3106
22 20 15 10 5 1
C3117
C3118
C3122
C3123
L3100
4
3
R3522
R3521
C3510
C3511
7
3
R3104
1
2
8
CN2511
R2567
C9003
12
54
R3558
R3559
C3105
IC3101
C3563
CN2506
29302728252623242122192017181516131411129
8
R2566
LB2525
LB2526
R1125
12
3
C9005
R1124
IC9003
54
C9004
LB9001
LB9002
C9002
R4580
R4578
R4576
R4577
C4458
R4588
LB4530
111520
C4454
R4030
IC4506
R4029
C4042
15 10
R3560
9
C4455
C3103
C4460
R3102
C3100
C3101
C3104
C3111
C3112
(FOR AKX78PH/PN)
R3525
C3512
10
C4456
444035302523
C4459
C3108
R3101
R3100
C3102
4
3
C3107
C3560
R4025
R4026
C3562
JK3501...AKX78PH/PN
L3201
R4031
C4044
R4035
1
2
LB2512
LB2523
LB2522
R2560
LB2521
R2561
R4023
C4003
C4041
C4019
R4049
C4043
C4582
R4048
R3205
C3206
22 20 15 10 5 1
C3223
C3222
R3526
C3513
(FOR AKX78PH/PN)
C4018
C3561
LB2520
D9001
C3217
C3218
R2582
4
3
LB2519
R2583
10
R4022
C4004
R4105
C4008
R3204
C3205
IC3201
L3200
LB2518
8
R2508
R4019
R4020
R4021
C4002
1210 5 1
13
15
IC4001
20
24
R4007
R4008
R4009
R3202
C3200
C3201
R3541
C3203
C3204
C3211
C3212
1
2
C3565...AKX78PH/PN
LB2527
R4018
R4017
353025
R4010
444035302523
C3208
LB2511
1234567
R4015
R4016
C4010
C4011
R4004
R4006
48
R4001
R4002
45
40
37
C4007
36
R4003
C4009
QR2505
R4011
R4012
R4013
R4014
R3201
R3200
C3202
C3207
4
3
C3566...AKX78/PH/PN
JK6002
CA
R2220
C4006
3
2
X4001
4
1
C4005
R4005
R2546
C4020
R2544
R3311
C3307
22
C3327
L3301
1
2
(FOR AKX78PH/PN)
C6123
R6107
R6118
2
3
1
AUX IN
D2100
C
A
R2219
C2143
R2520
QR2502
B
C
B
E
C
E
B
C
E
QR2503
R3304
R3309
R3305
R3307
C3305
C3306
20 15 10 5 1
IC3301
C3310
C3318
C3311
C3319
C3326
C3312C3320C3213C3219C3113C3119
4
3
1
16
C6101
IC6100
5
10
9
8
C6122
R6117
4
R6108
R6106
R3302
R6109
C3301
C3302
L3300
Q9004
Q9005
Q9003
B
E
B
R9007
C
R9010
C
C
R9009
B
E
E
B
E
QR9001
Q2111
E
R2152
C
B
R2154
R2147
B
C
C2133
E
R2153
Q2112
C2132
1
8
2
7
IC2102
3
6
45
C2101
R2100
R2102
R2103
C
B
E
Q2100
E
C
B
R2137
B
E
Q2108
C2124
R2123...AKX58PH, AKX78PH
R2121...AKX78PH/PN
R6100
C6106
64
31
21
R9011
E
C
R9008
C2131
D2103
R2151
C2129
C
C2130
R2117
R2119
C2108
R2113
C2121
R2130
D2101
R2135
C
R2143
CN2102
B
E
Q2110
B
R2118
R2126
12
R2150
R2149
Q2103
E
C
R2129
C
C2118
PbF
R2155
B
R2148
R2125
E
Q2104
B
C2113
3765BA3765BA
E
C
R9006
C
QR9003
B
QR9002
(FOR AKX78PH/PN)
C2135
D2105
E
C
B
R2221
B
C
E
Q2113
VA51
D3000
R51
R59
1
4
3
QR6101
R52
C67
L3003
E
C
R6111
LB6100
R55
11
C61
15
QR6100
B
R54
10
16
IC52
E
C
R53
20
C3000
B
R56
6
R6110
C62
5
C63
1
R2101
R2120...AKX58GN
R2158...AKX78PH/PN
C6103
R6105
R57
L53
C65
LB52
JK52
AM ANT
Q2106
C2126
R2141
R2112...AKX58GN/PH/PN
R6104
R6101
C6102
C6107
L52
D3001
R3301
R3300
C3303
444035302523
C3309
C3308
1
2
R60
JK51
FM ANT
A
(SIDE B)
1
1
3
4
2
7
5
8
6
JK3502...AKX58GN/PH/PN
SPEAKERS
SA-AKX58GN/PH/PN,SA-AKX78PH/PN
MAIN P.C.B.
2
3
4
5
6
7
8
9
1011213
1
60
Page 61
13.3.Panel, USB & Music Port P.C.B.
1
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
1011213
SA-AKX58GN/PH/PN,SA-AKX78PH/PN
PANEL / USB / MUSIC PORT P.C.B.
NOTE: " * " REF IS FOR INDICATION ONLY
B
PANEL P.C.B. (REP5063BA...AKX58GN/PH/PN)
(REP5063CA...AKX78PH/PN)
C
MUSIC PORT P.C.B. (REP5063BC...AKX58GN/PH/PN)
(REP5063CC...AKX78PH/PN)
D
USB P.C.B. (REP5063BB...AKX58GN/PH/PN)
(REP5063CB...AKX78PH/PN)
PbF
3762BA
3762BA
PbF
3762BC
3762BC
PbF
3762BB
3762BB
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
IC6000
R6033
R6016
R6017
R6018
C6008
C6010
C6017
R6029
D6012
D6009
R6032
R6030
R6028
L6000
R6122
R6113
R6107
QR6003
QR6004
R6003
R6005
R6004
R6012
R6001
R6000
C6000
QR6000
R6002
C6101
C6102
R6109
R6110
C6201
C6202
R6208
R6209
C6003
C6004
C6005
C6006
C6007
C6009
C6011
C6013
C6014
C6015
C6016
C6018
R6023
R6105
R6112
R6106
C6012
R6009
R6008
R6006
R6007
C6500
C6501
C6022
R6026
D6006
W38
W42
W43
R6035
D6201
D6202
D6203
D6204
D6205
D6206
D6207
D6208
D6209
D6210
R6038
R6037
W84
W85
W62
W61
R6036
R6103...AKX58GN/PH/PN
R6104...AKX78PH/PN
QR6005
W58
W83
W65
W108
W107
W115
W114
W113
W14
W36
W9
W66
W20
W67
W106
W72
W111
W63
W70
W71W76
W75
W86
W74
W79
W16
W134
W133
W131
W64
W19
W68
W44
W73
W78
W116
W15
W12
W21
W33
W31
W34
W32
W24
W25
W40
W41
W18
W13
W11
W122
W22
W17
W7
W6
W4
W3
W109
W77
W53
W54
W117
W112
W82
W110
W28
W60
W91
W93
W69
W46
W50
W47
W95
W94
W96
W124
W35
W88
W87
W89
W92
W90
W123
W127
W118
W55
W51
W48
W57
W45
W37
W81
W80
W132
W23
W39
W49
W52
W56
W10
W26
W30
W29
W2
W1
W8
W5
W59
W136
W140
W142
W143
W144
W145
W146
W147
W148
W149
W150
W151
W152
W153
W154
W155
W156
W158
W159
W160
W161
W162
W163
W164
W165
W168
W169
W170
W166
LB6400
LB6401
R6400
W200
C6320
C6321
C6322
L6300
L6301
L6302
C6318
C6319
VR6100
FL6000
D6007
S6226
S6227
S6200
S6211
S6212
S6213
S6214
S6217
S6216
S6220
S6219
S6201
S6218
Q6000
D6105
D6106
D6101
D6102
D6104
D6103
C6023
IR6500
S6225
S6223
S6224
S6222
S6221
S6215
S6228
C6021
C6024
Q6001
D6005
D6008
T6000
CN6004*
CN6003
CN6001
CN6002
D6015...AKX58GN/PH/PN
D6016...AKX78PH/PN
(FOR AKX78PH/PN)
VR6200
S6202
CN6401
JK6400
D6400
D6401
JK6401
JK6301
CN6300
USB PORT B
(REC/PLAY)
USB PORT A
(PLAY)
SENSOR
VOLUME
(PLAYLIST 4)
(PLAYLIST 5)
(PLAYLIST 6)
ILLUMINATION/
CONTROL
(BLUETOOTH/
MEMORY)
(ALBUM TRACK/
DJ JUKEBOX)
(PLAY/PAUSE)
(USB/CD)
(RADIO/AUX IN)
(OPEN/CLOSE)
(TUNE)
(USB REC)
(D.BASS)
(MANUAL EQ)
(POWER)
(BACK)
(FWD)
(MEMORY\REC)
(LATIN/PRESET EQ)
(PLAYLIST 2)
(PLAYLIST 1)
(PLAYLIST 3)
C6027
C6028
1
2
3
1152553544304016
1
3
9
8
7
6543
2
1
15432
1234
123456789101112131415161718192021222324252627
28
29
30
123456789
10
11
12
1
3
2
12345678
4
3
2
1
5
6
4
3
2
1
5
6
7
6
5
4
3
2
1
1
2
3
4
5
1
11
12
22
23
33
34
44
B
C
E
61
Page 62
13.4.CD Interface P.C.B.
E
CD INTERFACE P.C.B. (REP4945A)
H
M7302*
(SPINDLE
MOTOR)
1
G
F
E
D
S7201
(RESET)
24
CN7002
10
9
8
7
6
5
4
3
2
1
M7301*
(TRAVERSE
2
MOTOR)
1
31
CN7001
TO LOADING P.C.B.
(CD MECHANISM
UNIT BRS12C)
PbF
3556A
3556A
2
12345
C
B
A
NOTE: " * " REF IS FOR INDICATION ONLY
1
2
3
SA-AKX58GN/PH/PN,SA-AKX78PH/PN
CD INTERFACE P.C.B.
4
5
6
7
8
9
1011213
1
62
Page 63
14 Voltage and Waveform Measurement
.
14.1.Voltage Measurement
Note:
• Indication Voltage Values are in standard values for the unit measured by the DC electronic circuit tester (high-impe dance) with
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 poi nt because it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.