Panasonic SA-AKX220PN User manual

© Panasonic Corporation 2016. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
PSG1601001CE
CD Stereo System
Model No. SA-AKX220PN
SA-AKX220PS
SA-AKX440PN
SA-AKX440PS
Product Color: (K)...Black Type
(W)...White Type (For SA-AKX220)
TABLE OF CONTENTS PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Before Repair and Adjustment------------------------- 4
1.3. Protection Circuitry---------------------------------------- 4
1.4. Power Supply using SMPS Module------------------- 4
1.5. Safety Parts Information--------------------------------- 7
2 Warning-------------------------------------------------------------- 8
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 8
2.2. Precaution of Laser Diode------------------------------- 8
2.3. General description about Lead Free Solder
(PbF)---------------------------------------------------------- 9
2.4. Handling Precautions for Traverse Unit-------------- 9
2.5. Grounding for electrostatic breakdown
prevention-------------------------------------------------- 10
3 Service Navigation --------------------------------------------- 11
3.1. Service Information-------------------------------------- 11
4 Specifications----------------------------------------------------12
5 Location of Controls and Components------------------13
5.1. Remote Control Key Button Operation ------------- 13
5.2. Main Unit Key Button Operation---------------------- 14
6 Service Mode-----------------------------------------------------16
6.1. Cold-Start -------------------------------------------------- 16
6.2. Sales Demonstration Lock Function ----------------16
6.3. Doctor Mode Table--------------------------------------- 17
6.4. Self-Diagnostic Mode -----------------------------------19
Please refer to the original service manual for:
OCD Mechanism Unit (BRS12C) , Order No. PSG1303059AE
OSpeaker system SB-AKX220PN, Order No. PSG1601002CE
OSpeaker system SB-AKX440PN, Order No. PSG1601002CE

2
6.5. Self-Diagnostic Error Code Table--------------------19
7 Troubleshooting Guide----------------------------------------21
7.1. No Power or No Display--------------------------------21
7.2. Bluetooth® Pairing Failure-----------------------------21
7.3. No Key Function------------------------------------------21
7.4. No Remote Control Function--------------------------22
7.5. USB Device Cannot Detect----------------------------22
7.6. No Output Sound-----------------------------------------23
7.7. Check Point------------------------------------------------24
8 Disassembly and Assembly Instructions---------------26
8.1. Types of Screws------------------------------------------26
8.2. Disassembly Flow Chart--------------------------------27
8.3. Main Components and P.C.B. Locations-----------27
8.4. Disassembly of Top Cabinet---------------------------28
8.5. Disassembly of Front Panel Unit---------------------28
8.6. Disassembly of Panel P.C.B.--------------------------29
8.7. Disassembly of USB P.C.B. ---------------------------30
8.8. Disassembly of Music Port P.C.B. (For
AKX440)----------------------------------------------------30
8.9. Disassembly of Rear Panel----------------------------30
8.10. Disassembly of Main P.C.B.---------------------------31
8.11. Disassembly of SMPS Module -----------------------32
8.12. Disassembly of CD Mechanism Unit----------------32
8.13. Disassembly of CD Interface P.C.B.-----------------34
9 Service Position-------------------------------------------------35
9.1. Checking of Panel P.C.B. and Main P.C.B.--------35
9.2. Checking of SMPS Module ---------------------------35
10 Block Diagram ---------------------------------------------------37
10.1. System Control -------------------------------------------37
10.2. Audio --------------------------------------------------------39
10.3. Power Supply ---------------------------------------------40
11 Wiring Connection Diagram---------------------------------41
12 Schematic Diagram---------------------------------------------43
12.1. Schematic Diagram Notes-----------------------------43
12.2. Main (Micon) Circuit (1/3) ------------------------------45
12.3. Main (Micon) Circuit (2/3) ------------------------------46
12.4. Main (Micon) Circuit (3/3) ------------------------------47
12.5. Main (USB) Circuit---------------------------------------48
12.6. Main (Tuner AUX) Circuit ------------------------------49
12.7. Main (DSP Bluetooth) Circuit -------------------------50
12.8. Main (Damp) Circuit -------------------------------------51
12.9. Main (Voltage Regulator) Circuit ---------------------52
12.10. Panel Circuit-----------------------------------------------53
12.11. USB, CD Interface and Music Port Circuit---------54
13 Printed Circuit Board ------------------------------------------55
13.1. Main P.C.B. ------------------------------------------------55
13.2. Panel, USB P.C.B., CD Interface P.C.B. (For
AKX220PN/PS, AKX440PN/PS) and Music
Port P.C.B (For AKX440PN/PS)----------------------56
14 Voltage and Waveform Measurement --------------------57
14.1. Voltage Measurement-----------------------------------57
15 Exploded View and Replacement Parts List-----------61
15.1. Cabinet Parts Location 1-------------------------------61
15.2. Cabinet Parts Location 2-------------------------------62
15.3. Packaging (For SC-AKX220PN/PS) ----------------63
15.4. Packaging (For SC-AKX440PN/PS) ----------------64
15.5. Mechanical Replacement Part List ------------------65
15.6. Electrical Replacement Parts List--------------------67

3
1 Safety Precautions
1.1. General Guidelines
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are 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 1MΩand 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 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

4
1.2. Before Repair and Adjustment
Disconnect AC power to discharge AC capacitor (in SMPS Module) as indicate below diagram through a 10 Ω, 10 W resistor to
ground.
Figure 1-2
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 120 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 350 mA (AKX220PN/
AKX440PN).
Current consumption at AC 220~240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 350 mA
(AKX220PS/AKX440PS).
1.3. 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.
1.4. Power Supply using SMPS Module
This model uses Switching Mode Power Supply (SMPS Module) to provide the power supply to the unit. Here is the supplied part
no. for the SMPS Module
1) N0AB1GK00001 (For SA-AKX220PN)
3) N0AD1GK00003 (For SA-AKX220PS)
2) N0AB1GL00001 (For SA-AKX440PN)
4) N0AD1GL00001 (For SA-AKX440PS)

5
1.4.1. How to Identify SMPS
Figure 1-3
1.4.2. For SA-AKX220PN
Figure 1-4
1.4.3. For SA-AKX220PS
Figure 1-5

6
1.4.4. For SA-AKX440PN
Figure 1-6
1.4.5. For SA-AKX440PS
Figure 1-7

7
1.5. 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 & Description Remarks
12 RGR0473A-PB REAR PANEL AKX220PN
12 RGR0473A-QB REAR PANEL AKX220PS
12 RGR0473A-UB REAR PANEL AKX440PN
12 RGR0473A-VB REAR PANEL AKX440PS
20 RKM0764-K TOP CABINET K
20 RKM0764-W TOP CABINET W
301 RAE1052Z-V TRAVERSE ASS'Y (E.S.D)
A2 K2CB2CB00022 AC CORD PN
A2 K2CQ2YY00119 AC CORD PS
A3 RQT0A55-M O/I BOOK (En/Sp) AKX220
A3 RQT0A60-M O/I BOOK (Sp) AKX440
A3 RQT0A61-B O/I BOOK (En) AKX440
PCB6 N0AB1GK00001 SMPS MODULE AKX220PN
PCB6 N0AB1GL00001 SMPS MODULE AKX440PN
PCB6 N0AD1GK00003 SMPS MODULE AKX220PS
PCB6 N0AD1GL00001 SMPS MODULE AKX440PS

8
2Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi-
tive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatically Sensitive (ES) Devices.
The following techniques should be used to help reduce the incidence of component damage 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, place the assembly on a conductive surface such as alumi-
num 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 compara-
ble 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) suf-
ficient 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 pickup: 100 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.

9
Figure 2-1
2.3. General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards 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
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 control after setting the temperature 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 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 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-
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)

10
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 environ-
ment.
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

11
3 Service 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.
3.1.1. Software Update Procedure

12
4 Specifications
QAmplifier section
RMS output power stereo mode
Front Ch (both ch driven) 225 W per channel (4 Ω),
1 kHz, 30% THD (for AKX220)
325 W per channel (3 Ω),
1 kHz, 30% THD (for AKX440)
Total RMS stereo mode power 450 W (for AKX220)
650 W (for AKX440)
QTuner, terminals section
Preset memory FM 30 stations
AM 15 stations
Frequency modulation (FM)
Frequency range 87.5 MHz to 108.0 MHz
(100 kHz step) (for PN)
87.9 MHz to 107.9 MHz
(220 kHz step) (for PN)
87.50 MHz to 108.00 MHz
(50 kHz step) (for PS)
Antenna terminals 75 Ω(unbalanced)
Amplitude modulation (AM)
Frequency range 520 kHz to 1710 kHz
(10 kHz step) (for PN)
522 kHz to 1629 kHz
(9 kHz step) (for PS)
520 kHz to 1630 kHz
(10 kHz step) (for PS)
AUX 1
Audio input Pin jack (1 system)
AUX 2 (for AKX440)
Sensitivity 100 mV, 4.7 k Ω
QDisc section
Discs played (8 cm or 12 cm) CD, CD-R/RW (CD-DA, MP3*)
* MPEG-1 Layer 3
Pick up
Wavelength 790 nm (CD)
QUSB section
USB Port
USB standard USB 2.0 full speed
Media file format support MP3 (*.mp3)
USB device file system FAT12, FAT16, FAT32
USB recording
Bit rate 128 kbps
USB recording speed 1x, 3x (CD only)
Recording file format MP3 (*.mp3)
QInternal memory section (for AKX440)
Memory
Memory size 4 GB
Media file format support MP3 (*.mp3)
Memory recording
Bit rate 128 kbps
Memory recording speed 1x, 3x (CD only)
Recording file format MP3 (*. Mp3)
QBluetooth®section
Version Bluetooth®Ver.2.1 + EDR
Class Class 2
Supported profiles A2DP, AVRCP, SPP, FTP
(for AKX220)
A2DP, AVRCP, SPP, OPP, FTP
(for AKX440)
Operating frequency 2.4 GHz band, FH-SS
Operating distance 10 m line of sight
QGeneral
Power supply AC 120 V, 60 Hz (for PN)
AC 220 to 240 V, 50/60 Hz
(for PS)
Power consumption 53 W (for AKX220PN)
60 W (for AKX220PS)
86 W (for AKX440)
Dimensions (W x H x D) 348 mm x 193 mm x 251 mm
Mass 2.5 kg (for AKX220)
2.6 kg (for AKX440)
Operating temperature range 0 °C to +40 °C
Operating humidity range 35% to 80% RH
(no condensation)
Power Consumption in standby
mode (approximate) 0.3 W (for PN)
0.5 W (for PS)
Power Consumption in standby
mode (approximate)
(With "BLUETOOTH STANDBY" set
to "ON")
0.4 W (for PN)
0.6 W (for PS)
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.
QSystem: SC-AKX220PN Main Unit: SA-AKX220PN
Speakers: SB-AKX220PN
QSystem: SC-AKX220PS Main Unit: SA-AKX220PS
Speakers: SB-AKX220PN
QSystem: SC-AKX440PN Main Unit: SA-AKX440PN
Speakers: SB-AKX440PN
QSystem: SC-AKX440PS Main Unit: SA-AKX440PS
Speakers: SB-AKX440PN

13
5 Location of Controls and Components
5.1. Remote Control Key Button Operation
5.1.1. For SA-AKX220
5.1.2. For SA-AKX440

14
5.2. Main Unit Key Button Operation
5.2.1. For SA-AKX220

15
5.2.2. For SA-AKX440

16
6 Service Mode
6.1. Cold-Start
6.2. Sales Demonstration Lock Function
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Cold Start To carry out cold-start or initialize
to shipping mode
1. Unplug AC power cord.
2. Press & hold [POWER]
button.
3. Plug in AC power cord
while [POWER] button
being pressed.
4. Release [POWER] button.
Entering into
Sales
Demonstration
Lock Mode
To enter into the sales
demonstration lock mode.
1. Turn on the unit.
2. Select to any mode
function.
(For AKX220)
3. Press and hold
[ OPEN/CLOSE] and
[USB/CD] keys for 5 sec or
more.
(For AKX440)
3. Press and hold
[ OPEN/CLOSE] and
[CD/RADIO/AUX] keys for
5 sec or more.
The display will show upon
entering into this mode for
2 sec.
Note: [ OPEN/CLOSE]
button is invalid and the main
unit displays "LOCKED" while
the lock function mode is
entered.
Cancellation of
Sales
Demonstration
Lock Mode
To cancel the sales
demonstration lock mode.
1. Turn on the unit.
2. Select to CD mode function.
3. Set volume to Vol 19.
(For AKX220)
4. Press and hold
[ OPEN/CLOSE] and
[USB/CD] keys for 5 sec or
more.
(For AKX440)
4. Press and hold
[ OPEN/CLOSE] and
[CD/RADIO/AUX] keys for
5 sec or more.
The display will show upon
entering into this mode for
2 sec.
FL Display
Key Operation
Front Key
Item
DescriptionMode Name

17
6.3. Doctor Mode Table
6.3.1. Doctor Mode Table 1
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Doctor Mode
EEPROM
checksum
check
:edoMDCnIedoMrotcoDotniretneoT
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 [SLEEP]
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 AKX220)
Cold Start To active cold start upon next AC
power up when reset start is
execute the next time.
In Doctor Mode:
1. Press [4] button on the
remote control.
Version No. (001 ~ 999) specific for each
firmware
(Decimal)1 2 3 4
(Display 1) (For AKX440)
(Decimal)
1 2 3 4

18
6.3.2. 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 Test To 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
(For AKX220)
(For AKX440)
Traverse Test To 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.
2. To cancel this mode, press
[0] button on the remote
control.
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.

19
6.4. Self-Diagnostic Mode
6.5. Self-Diagnostic Error Code Table
Self-Diagnostic Function 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.
6.5.1. Power Supply Error Code Table
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Self Diagnostic
Mode
edomDCtceleS:1petSgnikcehccitsongaidflesotniretneoT
(Ensure no disc is inserted).
To exit, press [ I] on main unit or
remote control.
Step 2: Press & hold [ ] button
follow by [ /
/
] on
main unit for 2 seconds.
Error Code
Information
System will perform a check on
any unusual/error code from the
memory
,edomcitsongaidflesnI:1petS:elpmaxE
Press [ ] on main unit.
Delete error code To clear the stored in memory
(EEPROM IC)
Step 1: In self diagnostic mode,
Press [OK] on remote
control for 5 seconds.
To exit, press [ I] on main unit or
remote control.
/
Solution
(PCB exchange repair)
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Error Code F61 Diagnosis Contents:
Power Amp IC output
abnormal.
Upon power on,
PCONT=HIGH,
DC_DET_AMP after
checking LSI.
Error Code F76 Diagnosis Contents:
Power Amp IC output
abnormal.
DC_DET_PWR.
Error Code
F61-76
Diagnosis Contents:
Power Amp IC output
abnormal.
Both DCDET (NG).
Press [ ] on main unit
for next error.
Press [ ] on main unit
for next error.
Press [ ] on main unit
for next error.
Check main (IC6000).
Check SMPS module
(Main IC1002 / IC1003).
DAMP and power
supply abnormal.

20
6.5.2. CD Mechanism Error Code Table
6.5.3. Bluetooth Error Code Table
Solution
(PCB exchange repair)
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Error Code
CD H15
Diagnosis Contents:
CD Open Abnormal .
During operation
POS_SW_R On fail to be
detected within 4 sec.
Error No. shall be clear
by force or during cold start.
Error Code
CD H16
Diagnosis Contents:
CD Closing Abnormal .
During operation
POS_SW_CEN
On fail to be
detected within
Error No. shall be clear by
force
Press [ ] on main unit
for next error.
Press [ ] on main unit
for next error.
4 sec.
Check CD Interface
P.C.B..
Check CD Interface
P.C.B..
Solution
(PCB exchange repair)
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Error Code
F703
Diagnosis Contents:
Bluetooth Communication.
Communication between
Bluetooth module and
micro-p abnormal.
Error Code F77 Diagnosis Contents:
Bluetooth Address Error
If there is no valid Bluetooth
address stored in the
EEPROM IC.
Press [ ] on main unit
for next error.
Press [ ] on main unit
for next error.
Check NFC/Bluetooth
P.C.B..
Check IC2002.