Panasonic SA-MAX4000PN User manual

© Panasonic Corporation 2015. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
PSG1504011CE
CD Stereo System
Model No. SA-MAX4000PN
SA-MAX4000PS
Product Color: (K)...Black Type
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------------------- 5
1.5. Safety Parts Information -------------------------------- 5
2 Warning-------------------------------------------------------------- 6
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 6
2.2. Precaution of Laser Diode------------------------------- 6
2.3. General description about Lead Free Solder
(PbF)---------------------------------------------------------- 7
2.4. Handling Precautions for Traverse Ass’y------------ 7
2.5. Grounding for electrostatic breakdown
prevention --------------------------------------------------- 8
3 Service Navigation -----------------------------------------------9
3.1. Service Information----------------------------------------9
3.2. Software Update Procedure-----------------------------9
4 Specifications----------------------------------------------------10
5 Location of Controls and Components------------------ 11
5.1. Remote Control Key Button Operation ------------- 11
5.2. Main Unit Key Button Operation---------------------- 12
6 Service Mode-----------------------------------------------------13
6.1. Cold-Start -------------------------------------------------- 13
6.2. Sales Demonstration Lock Function ----------------13
6.3. Doctor Mode Table--------------------------------------- 14
6.4. Self-Diagnostic Mode -----------------------------------16
6.5. Self-Diagnostic Error Code Table-------------------- 16
7 Troubleshooting Guide --------------------------------------- 19
7.1. Audio -------------------------------------------------------- 19
Please refer to the original service manual for:
OCD Mechanism Unit Order No. PSG1303059AE
OSpeaker system SB-MAX4000PN/PS, Order No. PSG1504010CE

2
7.2. Power -------------------------------------------------------22
8 Disassembly and Assembly Instructions---------------23
8.1. Type of Screws -------------------------------------------23
8.2. Disassembly Flow Chart--------------------------------24
8.3. Main Components and P.C.B. Locations-----------25
8.4. Disassembly of Top Cabinet---------------------------26
8.5. Disassembly of Front Panel Unit---------------------27
8.6. Disassembly of FL Display P.C.B. -------------------28
8.7. Disassembly of Illumination Jog P.C.B.-------------28
8.8. Disassembly of BT&NFC P.C.B.----------------------29
8.9. Disassembly of Volume Jog P.C.B.------------------29
8.10. Disassembly of USB P.C.B. ---------------------------30
8.11. Disassembly of Mic P.C.B.-----------------------------30
8.12. Disassembly of DJ Cabinet Unit----------------------31
8.13. Disassembly of Button Left P.C.B.-------------------32
8.14. Disassembly of Multi Control P.C.B.-----------------32
8.15. Disassembly of Button Right P.C.B.-----------------33
8.16. Disassembly of SMPS Module -----------------------33
8.17. Disassembly of Main P.C.B.---------------------------34
8.18. Disassembly of CD Mechanism Unit----------------35
8.19. Disassembly of CD Interface P.C.B.-----------------35
9 Service Position-------------------------------------------------36
9.1. Checking of FL Display P.C.B., Button Left
P.C.B., Button Right P.C.B., Multi Control
P.C.B. and BT&NFC P.C.B.----------------------------36
9.2. Checking of SMPS Module----------------------------37
9.3. Checking of Main P.C.B.--------------------------------37
10 Block Diagram ---------------------------------------------------39
10.1. System Control -------------------------------------------39
10.2. Audio --------------------------------------------------------43
10.3. Power Supply ---------------------------------------------45
11 Wiring Connection Diagram---------------------------------47
12 Schematic Diagram---------------------------------------------49
12.1. Schematic Diagram Notes-----------------------------49
12.2. Main (CD Motor Driver) Circuit------------------------51
12.3. Main (USB EMMC) Circuit-----------------------------52
12.4. Main (SOC IO Expander) Circuit (1/2)--------------53
12.5. Main (SOC IO Expander) Circuit (2/2)--------------54
12.6. Main (Damp) Circuit (1/2) ------------------------------55
12.7. Main (Damp) Circuit (2/2) ------------------------------56
12.8. Main (Connector) Circuit (1/2) ------------------------57
12.9. Main (Connector) Circuit (2/2) ------------------------58
12.10. Main (DSP) Circuit---------------------------------------59
12.11. Main (Tuner AUX) Circuit ------------------------------60
12.12. Main (Vreg Fan) Circuit (1/3)--------------------------61
12.13. Main (Vreg Fan) Circuit (2/3)--------------------------62
12.14. Main (Vreg Fan) Circuit (3/3)--------------------------63
12.15. Illumination Jog and Volume Jog Circuit -----------64
12.16. FL Display Circuit ----------------------------------------65
12.17. Button Left Circuit----------------------------------------66
12.18. Button Right and Multi Control Circuit --------------67
12.19. Mic, USB and CD Interface Circuit ------------------68
13 Printed Circuit Board ------------------------------------------69
13.1. Main P.C.B. (Side A)-------------------------------------69
13.2. Main P.C.B. (Side B)-------------------------------------70
13.3. FL Display, Mic and USB P.C.B.----------------------71
13.4. Button Left and Button Right P.C.B.-----------------72
13.5. Volume Jog, Illumination Jog, Multi Control
and CD Interface P.C.B.--------------------------------73
14 Voltage and Waveform Measurement --------------------75
14.1. Voltage Measurement-----------------------------------75
15 Exploded View and Replacement Parts List----------- 81
15.1. Cabinet Parts Location 1------------------------------- 81
15.2. Cabinet Parts Location 2------------------------------- 82
15.3. Cabinet Parts Location 3------------------------------- 83
15.4. Packaging ------------------------------------------------- 84
15.5. Mechanical Replacement Part List------------------ 85
15.6. Electrical Replacement Part List--------------------- 87

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 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 FM Tuner at volume minimum should be ~ 500mA (PN).
Current consumption at AC 220~240 V, 50/60 Hz in FM Tuner at volume minimum should be ~ 850mA (PS).
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.

5
1.4. Power Supply using SMPS Module
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) N0AB2GP00003 (PN)
1) N0AC2GP00004 (PS)
Figure 1-3
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
24 RGR0455H-B1 REAR PANEL PN
24 RGR0455H-C1 REAR PANEL PS
33 RKM0744-K2 TOP CABINET
301 RAE1048Z-V TRAVERSE ASS'Y (E.S.D)
A2 K2CB2CB00022 AC CORD PN
A2 K2CQ2YY00119 AC CORD PS
A3 RQT9980-1B O/I BOOK (En)
A3 RQT9982-1M O/I BOOK (Sp)
PCB14 N0AB2GP00003 SMPS MODULE PN
PCB14 N0AC2GP00004 SMPS MODULE PS

6
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.

7
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 Ass’y
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 (OPU)
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)

8
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

9
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.
3.2. Software Update Procedure

10
4 Specifications
QAmplifier section
RMS output power stereo mode
High Ch 350 W per channel (3 Ω), 1 kHz, 30% THD
Mid Ch 350 W per channel (3 Ω), 1 kHz, 30% THD
Low Ch 500 W per channel (2 Ω), 100 Hz, 30% THD
Total RMS stereo mode power 2400 W
QDisc section
Disc played (8 cm or 12 cm) CD, CD-R/RW (CD-DA, MP3*)
*MPEG-1 Layer 3, MPEG-2 Layer 3
Pick up
Wavelength 790 nm(CD)
QBuetooth®section
Version Bluetooth®2.1 + EDR
Class Class 2
Supported profiles A2DP, AVRCP, SPP, OPP, FTP
Operating frequency 2.4 GHz band FH-SS
Operation distance 10 m line of sight
QInternal memory section
Memory
Memory size 2 GB
Media file format support MP3 (*.mp3)
Memory recording
Bit rate 128 kbps
Memory recording speed 1x, 3x max (CD only)
Recording file format MP3 (*.mp3)
QTuner section
Frequency modulation (FM)
Preset memory 30 stations
Frequency range
87.5 MHz to 108.0 MHz (100 kHz step) (For PN)
87.9 MHz to 107.9 MHz (200 kHz step) (For PN)
87.50 MHz to 108.00 MHz (50 kHz step) (For PS)
Antenna terminals 75 Ω(unbalanced)
Amplitude modulation (AM)
Preset memory 15 stations
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)
QTerminal 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)
AUX IN 1
Audio input Pin jack
AUX IN 2
Terminal Stereo, 3.5 mm jack
Microphone
Terminal Mono, 6.3 mm jack
QGeneral
Power supply AC 120 V, 60 Hz (for PN)
AC 220 V to 240 V, 50/60 Hz
(for PS)
Power consumption 155 W
Dimensions (W x H x D) 492 mm x 221 mm x 421 mm
Mass 5.8 kg
Operating temperature range 0 °C to +40 °C
Operating humidity range 35% to 80% RH
(no condensation)
Power consumption in standby
mode (approximate) 0.4 W
Power consumption in standby
mode (approximate)
(With “BLUETOOTH STANDBY”
set to “ON”)
0.5 W
Note:
1. Specifications are subject to change without notice.
Mass and dimension are approximate.
2. Total harmonic distortion is measured by the digital spec-
trum analyzer.
QSystem: SC-MAX4000PN Main Unit: SA-MAX4000PN
Speaker System: SB-MAX4000PN
QSystem: SC-MAX4000PS Main Unit: SA-MAX4000PS
Speaker System: SB-MAX4000PS

11
5 Location of Controls and Components
5.1. Remote Control Key Button Operation

12
5.2. Main Unit Key Button Operation

13
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.
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.
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

14
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
To enter into Doctor Mode In 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 [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)
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.
(Decimal)
1 2 3 4

15
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
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.

16
6.4. Self-Diagnostic Mode
6.5. Self-Diagnostic Error Code Table
Self-Diagnostic Function (Refer Section 6.4. 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.
6.5.1. Power Supply Error Code Table
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Self Diagnostic
Mode
To enter into self diagnostic checking Step 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
for more than 5 seconds.
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 [g] on main unit for next
error.
Press [g] on main unit for next
error.
Press [g] on main unit for next
error.

17
6.5.2. CD Mechanism Error Code Table
6.5.3. Bluetooth Error Code Table
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 4 sec.
Error No. shall be clear by force
or during cold start.
Error Code
F26
Diagnosis Contents:
Communication between CD
servo LSI and micro-p abnormal.
During switch to CD func-tion, if
SENSE = “L” within fail safe time
of 20ms.
Press [g] on main unit for next
error.
Press [g] on main unit for next
error.
Press [g] on main unit for next
error.
FL Display
Key Operation
Front Key
Item
DescriptionMode Name
Error Code F70 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 [g] on main unit for next
error.
Press [g] on main unit for next
error.

18

19
7 Troubleshooting Guide
7.1. Audio
Audio confirmation Sound skip from front speaker (Bluetooth input) Check the radio wave interference of other wireless equipment (cordless phone,
microwave oven, WiFi, other BT devices).
No sound from front speaker (Bluetooth input) VFD display BLUETOOTH READY
(PAIRING OK) Check the connection to front speaker
VFD does not display your Device name
(PAIRING FAILED) Check BT module connection at Main P.C.B.
Unable to view MAX4000 in list of BT
devices in external BT device
Check the connection to front speaker
VFD display NO USB Check the Connection USB P.C.B. to Main P.C.B.
No Outout From AUX1/2 No Output from AUX 1/2 Check the connection to front speaker
Check Connection between Mic to Main
* Check the connection to front speaker
* Check Connection Mic P.C.B to Main P.C.B.
Bluetooth (BT)
Bluetooth (BT)
Module
Module
USB
USB
AUX1/2
AUX1/2
Mic
Mic
No Outout From USB VFD display Track
No Outout From Mic No Output From Mic
Check Main board (Micon/DSP & Digital Amplifier Circuit)
Check Mic P.C.B connector CN1401 (AUX2)
Check Main P.C.B connector CN2507
At Main Check IC6100
VCC Pin 16 = +12V
Selector Pin 10 = +12V (AUX1 ) , 0V (AUX2)
At Main Board Check Tuner IC (IC52)
VDD Pin 10,11 = +3.3V
Check Panel board connector CN1401
Check Mainl board connector CN2507
At Panel Check IC1400 & IC1401
VCC Pin 9 = +12V
At Main Board Check IC4802
VDD Pin 4 = +3.3V
VCC Pin 3 = +5.6V
Place other wireless equipment more than 2 meters away from main unit
Check Main P.C.B (Micon/DSP & Digital Amplifier Circuit)
Check Button Left P.C.B for connector P1500 & P1504
Check Main P.C.B connection CN2506
Check Q2117 Collector +5V
Check connection Bluetooth data UART_TX & UART_RX (IC 1001 Pin 101&102)
If all above are OK, BT module failure--> Change New BT Module
Check Main P.C.B (Micon/DSP & Digital Amplifier Circuit)
Check USB P.C.B connector CN9001 & CN9002
Check Main P.C.B connector CN2508 & CN2509
Check IC2101 Pin 10 fter L2102 = +5.6V
Check connection USB data D+/D- (IC 1001 Pin 97 & 98)

20
IC1001
IC4001
BT
USB
AUX
IC3001
IC3001
IC3101
IC3101
IC3301
IC3301
IC4001
Troubleshooting
Check IC Supply (3.3V)
: Pin 22,40
(15V) : pin 25 ,36 Check Xtal Operation
X4001 (24 MHz)
Check Command From SoC
Pin 4,5
Check Audio Input
Pin : 6 (Mic )
Pin : 7 (AUX - Non GS/JPN)
Pin : 8 (USB/BT)
Pin : 9 (44.1kHz/48 kHz)
Pin :10 (2.8MHz / 3.07 MHz)
Digital Data Square wave
(0-3.3V )
Check Audio Output to DAMP
Pin : 33&34 (PWM SW )
Pin : 31&32 (PWM MID)
Pin : 26&27 (PWM USB/BT) Digital Data Square wave
(0-3.3V)
5
4
IC1001
Troubleshooting
Check IC Supply
1.5V & 3.3V Check Reset Pin 1
High : OK
Low : NG Check Xtal Operation
X1002 (32 KHz)
IC3201
IC3201