Technics SUC500, SUC550 SERVICE MANUAL

CD Stereo System

Model No. SU-C500EB

SU-C500EG
SU-C500GN
SU-C500PP
SU-C550EB
SU-C550EG
SC-C500EB

PSG1511001CE

A6

SC-C500EG
SC-C500GN
SC-C500PP

Product Color: (S)...Silver Type

Please refer to the original service manual for:

 Speaker system SB-CT500EG-K, Order No. PSG1511002CE (For SU-C500EB/EG/GN/PP only)

TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3

1.1. General Guidelines---------------------------------------- 3

1.2. Before Repair and Adjustment------------------------- 4

1.3. Protection Circuitry----------------------------------------4

1.4. Caution For AC Cord (For EB)------------------------- 5

PAGE PAGE

1.5. Safety Parts Information----------------------------------6

2Warning--------------------------------------------------------------7

2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------7

2.2. Precaution of Laser Diode-------------------------------7

© Panasonic Corporation 2015. All rights reserved.
Unauthorized copying and distribution is a violation
of law.

2.3. General description about Lead Free Solder
(PbF) ----------------------------------------------------------8

2.4. Handling Precautions for Traverse Unit--------------8

2.5. Grounding for electrostatic breakdown
prevention----------------------------------------------------9

3 Service Navigation----------------------------------------------10

3.1. Service Information--------------------------------------10

4 Specifications----------------------------------------------------13
5 Location of Controls and Components------------------14

5.1. Remote Control Key Button Operation -------------14

5.2. Main Unit Key Button Operation----------------------15

6 Service Mode-----------------------------------------------------17

6.1. Service Mode----------------------------------------------17

7 Troubleshooting Guide----------------------------------------19

7.1. Preparations-----------------------------------------------19

7.2. No power---------------------------------------------------20

7.3. Unit Shutdown Soon After Power-up----------------23

7.4. No Display -------------------------------------------------24

7.5. LEDs do not illuminate----------------------------------25

7.6. Remote control does not operate--------------------32

7.7. Volume + / - key does not work-----------------------33

7.8. Touch key does not work-------------------------------34

7.9. CDs cannot be played back---------------------------35

7.10. USB is not recognized----------------------------------36

7.11. PC (USB-B) does not operate ------------------------36

7.12. OPT IN does not operate-------------------------------37

7.13. Bluetooth does not operate----------------------------37

7.14. Wireless/Wired network connection cannot be
made --------------------------------------------------------37

7.15. No sound from speaker---------------------------------38

7.16. No sound from headphones---------------------------39

8 Disassembly and Assembly Instructions---------------43

8.1. Type of Screws -------------------------------------------43

8.2. Disassembly Flow Chart--------------------------------44

8.3. Main Components and P.C.B. Locations-----------45

8.4. Disassembly of Rear Panel----------------------------46

8.5. Disassembly of Side AL Panel L & R ---------------46

8.6. Disassembly of Bottom Chassis----------------------46

8.7. Disassembly of Front Panel Block-------------------47

8.8. Disassembly of Power SW P.C.B. ------------------- 47

8.9. Disassembly of Headphone P.C.B.------------------48

8.10. Disassembly of Volume SW P.C.B.------------------48

8.11. Disassembly of USB P.C.B. ---------------------------48

8.12. Disassembly of Foot Illumination P.C.B.------------49

8.13. Disassembly of IR P.C.B.-------------------------------49

8.14. Disassembly of OLED P.C.B. -------------------------50

8.15. Disassembly of Touch SW P.C.B.--------------------50

8.16. Disassembly of SMPS P.C.B.-------------------------51

8.17. Disassembly of AMP P.C.B.---------------------------51

8.18. Disassembly of BT Connect P.C.B.------------------ 52

8.19. Disassembly of CD Mechanism Block--------------52

8.20. Disassembly of CD P.C.B. -----------------------------53

8.21. Disassembly of CD Illumination P.C.B. -------------54

8.22. Disassembly of Shaft Unit A---------------------------55

8.23. Disassembly of Wifi Module---------------------------57

8.24. Disassembly of Main P.C.B.---------------------------57

8.25. Replacement of Wifi Antenna L & R-----------------58

8.26. Assembly of Wifi Antenna L & R ---------------------60

9 Service Position-------------------------------------------------62

9.1. Checking and Repairing of Power SW P.C.B.,
Volume SW P.C.B., IR P.C.B., OLED P.C.B.,
Touch SW P.C.B., SMPS P.C.B., AMP P.C.B.,
BT Connect P.C.B., CD P.C.B., Interlock SW
P.C.B., Wifi Module and Main P.C.B. --------------- 62

10 Block Diagram--------------------------------------------------- 63
11 Wiring Connection Diagram -------------------------------- 64
12 Exploded View and Replacement Parts List----------- 65

12.1. Cabinet Parts Location 1 (SU-C500EB/EG/
GN/PP)----------------------------------------------------- 65

12.2. Cabinet Parts Location 2 (SU-C500EB/EG/
GN/PP)----------------------------------------------------- 66

12.3. Packaging (SC-C500EB/EG/GN/PP)--------------- 67

12.4. Cabinet Parts Location 1 (SU-C550EB/EG)------ 68

12.5. Cabinet Parts Location 2 (SU-C550EB/EG)------ 69

12.6. Packaging (SU-C550EB/EG)------------------------- 70

12.7. Mechanical Replacement Part List------------------ 71

12.8. Electrical Replacement Parts List ------------------- 74

2

1 Safety Precautions

1.1. General Guidelines

1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment wh ich 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 prop erly
installed.

5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

(This “Safety Precaution” is applied only in U.S.A.)

1. Before servicing, unplug the power cord to prevent an electric shock.

2. When replacing parts, use only manufacturer’s recommended components for safety.

3. Check the condition of the power cord. Replace if wear or damage is evident.

4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.

5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent
the customer from being exposed to a shock hazard.

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 1M and 5.2M.
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 1.5k, 10 watts resistor, in parallel with a 0.15F 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

3

1.2. Before Repair and Adjustment

Disconnect Power Supply AC to discharge AC capacitor in SMPS P.C.B. through a 1W / 10 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 220V - 240V, during power on (In Standby mode) should be ~0.30W. (EB/EG/GN)

• Current consumption at AC 120V, during power on (In Standby mode) should be ~0.30W. (PP)

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.

4

1.4. Caution For AC Cord (For EB)

Figure 1-3

5

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.

1.5.1. SU-C500EB/EG/GN/PP

Safety Ref No. Part No. Part Name & Description Remarks

18 RGG0277-S TOP AL PANEL

19 RGG0278-S SIDE AL PANEL L

20 RGG0279-S SIDE AL PANEL R

29 RGR0483A-A1 REAR PANEL EB/EG/

29 RGR0483A-B REAR PANEL PP

301 RAE5307Z-V TRAVERSE UNIT

PCB4 SEP0548AB SMPS P.C.B PP

PCB4 SEP0548AA SMPS P.C.B EB/EG/

F1 K5G312Y00007 FUSE

F2 K5G202Y00006 FUSE

IP7001 ERBRE1R50V FUSE

1.5.2. SC-C500EB/EG/GN/PP

Safety Ref No. Part No. Part Name & Description Remarks

A1 K2CG3YY00191 AC CORD PP

A1 K2CK3YY00083 AC CORD GN

A1 K2CM3YY00041 AC CORD EG

A1 K2CT3YY00081 AC CORD EB

A3 SQT1065 OI (Sp/Sw/Da/Fi) EG

A3 SQT1066 OI (En) EB/GN

A3 SQT1068 OI (En/Cf) PP

A3 SQT1113 OI (Ge/Fr/It/Du) EG

1.5.3. SU-C550EB/EG

GN

GN

Safety Ref No. Part No. Part Name & Description Remarks

18 RGG0277-S TOP AL PANEL

19 RGG0278-S SIDE AL PANEL L

20 RGG0279-S SIDE AL PANEL R

29 RGR0483B-A REAR PANEL

301 RAE5307Z-V TRAVERSE UNIT

A1 K2CM3YY00041 AC CORD EG

A1 K2CT3YY00081 AC CORD EB

A3 SQT1114 OI (En) EB

A3 SQT1115 OI (Ge/Fr/It/Du) EG

A3 SQT1116 OI (Sp/Sw/Da/Fi) EG

PCB4 SEP0548AA SMPS P.C.B

F1 K5G312Y00007 FUSE

F2 K5G202Y00006 FUSE

IP7001 ERBRE1R50V FUSE

6

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 incid ence 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 al umi­num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara­ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.

CAUTION:

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf­ficient to damage an ES device).

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 W/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 compone nts on the printed circuit boards used fo r this
equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and l ead (Pb). On the other hand, the lead free solder is the alloy mainl y consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86F) more than that
of the normal solder.

Definition of PCB Lead Free Solder being used

The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.

(See right figure)

Service caution for repair work using Lead Free Solder (PbF)

• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

• To put lead free solder, it should be well molten and mixed with the original lead free solder.

• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the
lead free solder.

• Use the soldering iron (more than 70W) equi pped with th e temperature co ntrol after setting the temp erature 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 gene rating 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-

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 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

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 follow ed by supplement service manual to be filed with origi nal service
manual.

• Positioning CD Lid for Service.

Step 1 Confirm 3 Lid Rubbers are assembled to Top Plate.

- Rubbers are effective for anti-slip of CD Lid.

10

Step 2 Temporary assemble CD Lid Unit and Shaft Plate Unit to Top Plate Unit.

Step 3 Align CD Lid to the center of Top Plate

- Make sure that both sides are equally.

11

Step 4 Fix CD Lid to To p Pl ate with Curing Tape.

- Tape left side and right side and front side.

Step 5 With applying pressure as below figure, fix Shaft Plate with 4 screws.

- Tightening Torque 3.0 ~ 6.0 kgf.cm.

12

4 Specifications

 General
Power supply AC 220 V to 240 V, 50/60 Hz

(EB/EG/GN)

AC 120 V, 60 Hz (PP)

Power consumption 60 W (For SU-C500)

50 W (For SU-C550)

Power consumption in standby
mode (Network Standby Off*)
Power consumption in standby
mode (Network Standby On*)
Dimensions (main unit) (W x H x D) 360 mm x 91 mm x 248.5 mm

360 mm x 91 mm x 258 mm

Mass (main unit) Approx. 3.9 kg
Operating temperature range 0 C to +40 C
Operating humidity range 35% to 80% RH

*: At the time of iPod/iPhone/iPad non-charging.

 Amplifier section (For SU-C500)
Output power Woofer: 40 W + 40 W (1 kHz,

T.H.D. 0.5 %, 4 , 20 kHz LPF)

Tweeter: 10 W + 10 W (5 kHz,

T.H.D. 0.5 %, 4 , 20 kHz LPF)

Load impedance Woofer: 4 

 Amplifier section (For SU-C550)
Output power 20 W + 20 W (1 kHz, T.H.D. 0.5

40 W + 40 W (1 kHz, T.H.D. 0.5

Load impedance 4  - 16 
Frequency response 20 Hz - 90 kHz

 Disc section
Playable Disc (8 cm or 12 cm) CD, CD-R, CD-RW
Pick up

Wavelength 790 nm (CD)
Laser power CLASS 1

Format CD-DA

 Speaker Section (SU-C500)
Speaker unit(s)

Woofer 8 cm x 2/ch, Cone type
Tweeter 1.2 cm x 3/ch, Dome type

Impedance Woofer: 4 

 Bluetooth
Bluetooth

Wireless equipment classification Class 2 (2.5 mW)
Supported profiles A2DP, AVRCP
Supported codec AAC, SBC
Frequency band 2.4 GHz band FH-SS
Operating distance Approx. 10 m Line of sight*

*: Prospective communication distance
Measurement environment:

®

Section

®

system specification Bluetooth® Ver.2.1+EDR

Temperature 25 C/ Height 1.0 m
Measuring in "MODE 1"

Approx. 0.3 W

Approx. 2.6 W

(For SU-C500)

(For SU-C550)

(no condensation)

Tweeter: 4 

%, 8 , 20 kHz LPF)

%, 4 , 20 kHz LPF)

(-3 dB, 8 )

Tweeter: 4 

 Terminals section
Headphones Jack Stereo, Ø3.5 mm
USB FRONT USB

Type A Connector
Support Memory Capacity 2 TB (max)
Maximum number of folders
(albums)
Maximum number of files (songs) 8000
File system FAT16, FAT32
USB port power DC OUT 5 V 2.1 A (max)

PC REAR USB

Type B Connector

Ethernet interface LAN

(100BASE-TX/10BASE-T)

Digital Input Optical digital input

(Optical terminal)

Format support LPCM

 Format section
USB-A
USB Standard USB 2.0 high-speed

USB Mass Storage class

USB-B
USB Standard USB 2.0 high-speed
USB Audio Class specification USB Audio Class 2.0,

Asynchronous mode

DSD control mode ASIO Native mode,

 Wi-Fi section
WLAN Standard IEEE802.11a / b / g / n
Frequency Band 2.4 GHz band (1 - 13 ch) /

5 GHz band (36, 40, 44,

Security WPA2™, Mixed mode

WPA2™/WPA™
Encryption Type TKIP / AES
Authentication type PSK

WEP (64 bit/128 bit)

WPS version Version 2.0

Note:

 Specifications are subject to change without notice.
Mass and dimension are approximate.
 Total harmonic distortion is measured by the digital spectrum
analyzer.

 System: SC-C500EB-S

Main Unit: SU-C500EB-S

Speakers: SB-CT500EG-K

 System: SC-C500EG-S

Main Unit: SU-C500EG-S

Speakers: SB-CT500EG-K

 System: SC-C500GN-S

Main Unit: SU-C500GN-S

Speakers: SB-CT500EG-K

 System: SC-C500PP-S

Main Unit: SU-C500PP-S

Speakers: SB-CT500EG-K

800

DoP mode

48 ch)

13

5 Location of Controls and Components

5.1. Remote Control Key Button Operation

14

5.2. Main Unit Key Button Operation

5.2.1. SU-C500EB/EG/GN/PP

15

5.2.2. SU-C550EB/EG

16

6 Service Mode

FL Display

Key Operation

Front Key

Item

DescriptionMode Name

Service Mode To enter into Service Mode 1. Power On the main set (AC

On, Power SW (main unit) On).

2. Press and hold the [STOP] on
main unit.

3. Press [6] button on the remote
control with holding the [STOP].

4. Press [9] button on the remote
control with holding the [STOP].

- Only this operation sequence,
Main set go to Service Mode.

- To confirm the firmware version,
it should turn on the Bluetooth
module even selector is not
Bluetooth.

- Header line of OLED shows "Srv." with
flashing (1Hz) continuously.

FL Display

Key Operation

Front Key

Item

DescriptionMode Name

Model, Region,
Firmware Version
and Font Verify
Confirmation

To determine the Model, Region,
Firmware version and Font verify.

In Service Mode:

1. Press [1] key indicates Model
Name, Region, and Firmware
Version of each device.

2. Press [0] key return to normal
display (maintain service mode).

- “001” means each version
number.

Model Name: [SC-C500] "SC-C500" + region /
[SU-C550] "SU-C550" + region
Main micon: "5MA" + Version Number
Sub micon: "5MB" + Version Number
AirPlay micon: "HiFi_BCO" + Version Number
*) Before getting the version
number, it will be blank.
USB-DAC: "USB-DAC" + Version Number
FONT: "FONT" + XXXXXX (check sum [3 Byte]
for the latter half which is the font area
in EEPROM)
*) The check sum will be included in
every official F/W release.

Main:5MA 001

Sub:5MB 001

AP:HiFi_BCO 001

USB-DAC:001

FONT:XXXXXX

[1]

[1]

[1]

[1]

SC-C500 EG

[1]

[1]

Srv.

Srv.

Srv.

Srv.

Srv.

Srv.

FL Display

Key Operation

Front Key

Item

DescriptionMode Name

MAC Address
Confirmation

To determine the MAC Address. In Service Mode:

1. Press [3] key on remocon, it
shows Ether (LAN) MAC
address and Bluetooth MAC
address.

2. Press [0] key return to normal
display (maintain service mode).

[3]

MAC(LAN)
8c:c1:21:ee:8f:b6

Srv.

MAC(Bluetooth)

9d:d2:32:ff:90:c7

Srv.

6.1. Service Mode

6.1.1. Service Mode Table 1

6.1.2. Service Mode Table 2

17

6.1.3. Service Mode Table 3

FL Display

Solution

(PCB exchange repair)

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.

Exchange AMP PCB.

Error Code F76 Diagnosis Contents:

Power Amp IC output abnormal.

DC_DET_PWR.

Confirmation of
connecting between
SMPS-AMP PCB and
AMP PCB - MAIN
PCB, exchange SMPS
PCB or AMP PCB or
MAIN PCB.

Press [

g

] on main unit for

next error.

Press [

g

] on main unit for

next error.

Press [

g

] on main unit for

next error.

Press [

g

] on main unit for

next error.

Press [

g

] on main unit for

next error.

Press [

g

] on main unit for

next error.

Error Code U82
(USB)

Diagnosis Contents:
USB over current Error.

Confirmation of USB
memory, exchange
USB PCB.

Exchange MAIN PCB.Error Code F78

(VirtualBatt)

Diagnosis Contents:
Virtual Battery Error.

Error Code F70 Diagnosis Contents:

Bluetooth Communication.

Communication between
Bluetooth module and micro-p
abnormal.

Confirmation of
connecting between
AMP PCB - MAIN
PCB, Bluetooth - MAIN
PCB. Exchange AMP
PCB, MAIN PCB or
Bluetooth PCB.

Error Code F77 Diagnosis Contents:

Bluetooth Address Error

If there is no valid Bluetooth
address stored in the
EEPROM IC.

Exchange MAIN PCB.

To exit, press [8] on main
unit or remote control.

To exit, press [8] on main
unit or remote control.

To exit, press [8] on main
unit or remote control.

To exit, press [8] on main
unit or remote control.

To exit, press [8] on main
unit or remote control.

To exit, press [8] on main
unit or remote control.

Press [

g

] on main unit for

next error.

Press [

g

] on main unit for

next error.

Error Code
No Play

Diagnosis Contents:
CD Device Error.

Confirmation of CD
DISC, exchange CD
TRV UNIT, exchange
MAIN PCB.

Confirmation of CD
DISC, exchange CD
TRV UNIT, exchange
MAIN PCB.

Error Code
No Play
(for 3 sec)

(for 3 sec)

Diagnosis Contents:
CD Decode Error.

To exit, press [8] on main
unit or remote control.

To exit, press [8] on main
unit or remote control.

18

7 Troubleshooting Guide

7.1. Preparations

19

7.2. No power

20

212223

7.3. Unit Shutdown Soon After Power-up

7.4. No Display

24

7.5. LEDs do not illuminate

7.5.1. Power or Network Standby LED does not illuminate

25

262728

7.5.2. Touch Key Backlight does not illuminate

7.5.3. Foot Illumination does not illuminate

29

30

7.5.4. Disc Illumination does not illuminate

31

7.6. Remote control does not operate

32

7.7. Volume + / - key does not work

33

7.8. Touch key does not work

34

7.9. CDs cannot be played back

35

7.10. USB is not recognized

7.11. PC (USB-B) does not operate

36

7.12. OPT IN does not operate

7.13. Bluetooth does not operate

7.14. Wireless/Wired network connection cannot be made

37

7.15. No sound from speaker

38

7.16. No sound from headphones

39

404142

8 Disassembly and Assembly Instructions

• 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 Rear Panel

• Disassembly of Side AL Panel L & R

• Disassembly of Bottom Chassis

• Disassembly of Front Panel Block

• Disassembly of Power SW P.C.B.

• Disassembly of Headphone P.C.B.

• Disassembly of Volume SW P.C.B.

• Disassembly of USB P.C.B.

• Disassembly of Foot Illumination P.C.B.

• Disassembly of IR P.C.B.

• Disassembly of OLED P.C.B.

• Disassembly of T ouch SW P.C . B.

• Disassembly of SMPS P.C.B.

• Disassembly of AMP P.C.B.

• Disassembly of BT Connect P.C.B.

• Disassembly of CD Mechanism Block

• Disassembly of CD P.C.B.

• Disassembly of CD Illumination P.C.B.

• Disassembly of Shaft Unit A

• Disassembly of Wifi Module

• Disassembly of Main P.C.B.

• Replacement of Wifi Antenna L & R

• Assembly of Wifi Antenna L & R

8.1. Type of Screws

43

8.2. Disassembly Flow Chart

SMPS P.C.B.

AMP P.C.B.

BT Connect P.C.B.

CD Mechanism Block

CD P.C.B.

CD Illumination P.C.B.

Shaft Unit A

Wifi Module

Main P.C.B.

Wifi Antenna L & R

Foot Illumination

P.C.B.

Power SW P.C.B.

Front Panel Block

Bottom Chassis

Side AL Panel L & R

Rear Panel

SU-C500 Unit
SU-C550 Unit

Headphone P.C.B.

Volume SW P.C.B.

USB P.C.B.

IR P.C.B.

Touch SW P.C.B.

OLED P.C.B.

44

8.3. Main Components and P.C.B. Locations

45

8.4. Disassembly of Rear Panel

Step 1 Remove 7 screws.
Step 2 Remove 10 screws (For SU-C500).
Step 2 Remove 7 screws (For SU-C550).
Step 3 Remove Rear Panel.

8.5. Disassembly of Side AL Panel
L & R

• Refer to “Disassembly of Rear Panel”.

Step 1 Remove 2 Rear Gaskets.
Step 2 Remove 8 screws.
Step 3 Remove Side AL Panel L & R.

8.6. Disassembly of Bottom Chas­sis

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

Step 1 Remove 4 screws.
Step 2 Remove 2 screws.
Step 3 Release catches.
Step 4 Remove Bottom Chassis.

46

8.7. Disassembly of Front Panel
Block

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

Step 1 Remove 4 screws.
Step 2 Release catches.
Step 3 Lift up Front Panel Block.

Step 4 Detach 5P Cable at the connector (P6801) on AMP

P.C.B..
Step 5 Detach 4P Cable at the connector (P9501) on Main
P.C.B..
Step 6 Detach 8P Cable at the connector (P9502) on Main
P.C.B..
Step 7 Detach 30P FFC at the connector (P7005) on Main
P.C.B..

Step 8 Remove Front Panel Block.

8.8. Disassembly of Power SW
P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove 2 screws.
Step 2 Detach 5P Cable at the connector (P7604) on OLED

P.C.B..
Step 3 Remove Power SW P.C.B..

47

8.9. Disassembly of Headphone
P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove screw.
Step 2 Release catches.
Step 3 Remove Headphone P.C.B..

8.11. Disassembly of USB P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove 2 screws.
Step 2 Release catches.
Step 3 Remove USB P.C.B..

8.10. Disassembly of Volume SW
P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of Headphone P.C.B.”.

Step 1 Remove 2 screws.
Step 2 Detach 3P Cable at the connector (P7607) on OLED

P.C.B..
Step 3 Remove Volume SW P.C.B..

48

8.12. Disassembly of Foot Illumina­tion P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove 2 screws.
Step 2 Detach 6P FFC at the connector (P7608) on OLED

P.C.B..

Step 3 Remove Foot Illumination P.C.B..

8.13. Disassembly of IR P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove screw.
Step 2 Detach 6P FFC at the connector (P7605) on OLED

P.C.B..
Step 3 Remove IR P.C.B..

49

8.14. Disassembly of OLED P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of USB P.C.B.”.

• Refer to “Disassembly of Foot Illumination P.C.B.”.

• Refer to “Disassembly of IR P.C.B.”.

Step 1 Remove 3 screws.
Step 2 Detach 5P Cable at the connector (P7604) on OLED

P.C.B..
Step 3 Detach 20P FFC at the connector (P7603) on OLED
P.C.B..
Step 4 Detach 3P FFC at the connector (P7607) on OLED
P.C.B..

Step 5 Remove OLED P .C.B..

8.15. Disassembly of Touch SW
P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of USB P.C.B.”.

• Refer to “Disassembly of Foot Illumination P.C.B.”.

• Refer to “Disassembly of IR P.C.B.”.

• Refer to “Disassembly of OLED P.C.B.”.

Step 1 Remove 2 screws.
Step 2 Remove Screw Spacers.
Step 3 Release catch.
Step 4 Remove Touch SW P.C.B..

50

8.16. Disassembly of SMPS P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove 6 screws.
Step 2 Detach 15P Cable at the connector (P1051) on SMPS

P.C.B..

Step 3 Remove SMPS P.C.B..

8.17. Disassembly of AMP P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

Step 1 Remove 6 screws.
Step 2 Detach 40P FFC at the connector (P8503) on AMP

P.C.B..
Step 3 Detach 30P FFC at the connector (P8502) on AMP
P.C.B..
Step 4 Remove AMP P.C.B..

51

8.18. Disassembly of BT Connect

8.19. Disassembly of CD Mecha-

P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

Step 1 Remove screw and Bluetooth Angle.
Step 2 Detach 8P FFC at the connector (P2101) on BT Con-

nect P.C.B..

Step 3 Remove BT Connect P.C.B..

nism Block

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

Step 1 Remove 2 screws.
Step 2 Remove P.C.B. Angle.

Step 3 Remove 4 screws.
Step 4 Remove Mecha Shield.

52

Step 5 Remove 3 screws.
Step 6 Remove Mecha Support A and Mecha Support B.

Step 7 Detach 24P FFC at the connector (CN7002) on CD

P.C.B..

Step 8 Remove CD Mechanism Block.

8.20. Disassembly of CD P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

• Refer to “Disassembly of CD Mechanism Block”.

Step 1 Release catches and push down the fixed pins as
arrow shown.

53

Step 2 Remove Mecha Chassis & Floating Springs.
Caution : Keep the Floating Springs in safe place and place

them back during assembling.

Step 7 Remove CD P.C.B..
Step 8 Attach short pin to the 24P FFC of the Traverse Unit.

Step 3 Remove 2 screws.
Step 4 Desolder points on the solder side of the CD P.C.B..
Step 5 Lift up the Connector Cover.
Caution : Do not use strong force as it may damage the

connector cover.
Step 6 Detach 24P FFC at the connector (CN7003) on CD

P.C.B..Step 5 Lift up the Connector Cover.

8.21. Disassembly of CD Illumination
P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

• Refer to “Disassembly of CD Mechanism Block”.

Step 1 Remove 2 screws.
Step 2 Detach 4P FFC at the connector (P7003) on Main

P.C.B..
Step 3 Remove CD Illumination P.C.B..

54

8.22. Disassembly of Shaft Unit A

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

Step 1 Remove 3 screws.
Step 2 Detach 3P Cable at the connector (P5002) on Main

P.C.B..

Step 3 Remove Rail Holder Unit.

Step 6 Remove screw.
Step 7 Remove Spring.
Step 8 Remove screw.
Step 9 Remove Spring Support.

Step 4 Remove screw.
Step 5 Remove Interlock SW P.C.B..

Step 10 Remove Screw Spacer.
Note for assembling:

After removing the adhesive for screw lock cleanly from the
Screw Spacer and the screw hole of Shaft Unit A, tighten up to
the fastening torque: 7k

If some dusts of the adhesive for screw lock remains between
Shaft Unit A and shaft plate, it may cause the operation failure
or abnormal noise while opening/closing the CD cover.

Step 11 Remove Guide Holder.

gf

cm.

·

55

Step 12 Remove 4 screws.
Step 13 Remove Shaft Plate Unit.

Step 14 Remove 2 screws.
Step 15 Remove Damper Support.

Step 18 Remove 4 screws.
Step 19 Remove Lid Ornament.

Step 20 Remove Shaft Unit A.

Step 16 Release catches.
Step 17 Remove Damper.

56

8.23. Disassembly of Wifi Module

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

Step 1 Remove screw.
Step 2 Detach Antenna Wire on Wifi Module.
Step 3 Detach Antenna Wire on Wifi Module.
Step 4 Remove Wifi Module.

8.24. Disassembly of Main P.C.B.

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

• Refer to “Disassembly of Wifi Module”.

Step 1 Remove 2 screws.
Step 2 Remove P.C.B. Angle.

Step 3 Remove 4 screws.
Step 4 Remove Mecha Shield.

57

Step 5 Remove 6 screws.
Step 6 Remove Shield R.
Step 7 Remove Main Shield.

8.25. Replacement of Wifi Antenna L
& R

• Refer to “Disassembly of Rear Panel”.

• Refer to “Disassembly of Side AL Panel L & R”.

• Refer to “Disassembly of Bottom Chassis”.

• Refer to “Disassembly of Front Panel Block”.

• Refer to “Disassembly of SMPS P.C.B.”.

• Refer to “Disassembly of AMP P.C.B.”.

• Refer to “Disassembly of Shaft Unit A”.

• Refer to “Disassembly of Wifi Module”.

• Refer to “Disassembly of Main P.C.B.”.

Step 1 Remove 8 screws.
Step 2 Remove Top AL Panel.
Step 3 Upset Mid Cabinet.

Step 8 Detach 3P Cable at the connector (P5002) on Main

P.C.B..
Step 9 Detach 24P FFC at the connector (P5001) on Main
P.C.B..
Step 10 Detach 4P FFC at the connector (P7003) on Main
P.C.B..
Step 11 Detach 8P FFC at the connector (P7301) on Main
P.C.B..
Step 12 Remove Main P.C.B..

58

Step 4 Release catches.
Step 5 Remove Wifi Antenna R.

Step 6 Lift up Antenna Wire from ribs.

Step 7 Release catches.
Step 8 Remove Wifi Antenna L.

59

8.26. Assembly of Wifi Antenna L & R

Step 1 Insert Wifi Antenna L and Wifi Antenna R into Holes at Mid Cabinet.
Step 2 Dressed Antenna Wire into the ribs of Mid Cabinet.

60

Step 3 Dressed Antenna Wire into the rib of Mid Cabinet.

61

9 Service Position

Note: For description of the disassembly procedures, refer Section 8 of the Service Manual.

9.1. Checking and Repairing of Power SW P.C.B., Volume SW P.C.B., IR
P.C.B., OLED P.C.B., Touch SW P.C.B., SMPS P.C.B., AMP P.C.B., BT
Connect P.C.B., CD P.C.B., Interlock SW P.C.B., Wifi Module and Main
P.C.B.

Step 1 Attach 30P FFC at the connector (P7005) on Main P.C.B..
Step 2 Attach 5P Cable at the connector (P7604) on OLED P.C.B..
Step 3 Attach 3P Cable at the connector (P7607) on OLED P.C.B..
Step 4 Attach 6P FFC at the connector (P7605) on OLED P.C.B..
Step 5 Attach 20P FFC at the connector (P7603) on OLED P.C.B..
Step 6 Attach 15P Cable at the connector (P1051) on SMPS P.C.B..
Step 7 Attach 8P FFC at the connector (P2101) on BT Connect P.C.B..
Step 8 Attach 40P FFC at the connector (P8503) on AMP P.C.B..
Step 9 Attach 30P FFC at the connector (P8502) on AMP P.C.B..
Step 10 Attach Antenna Wire on Wifi Module.
Step 11 Attach Antenna Wire on Wifi Module.
Step 12 Attach 3P Cable at the connector (P5002) on Main P.C.B..
Step 13 Attach 24P FFC at the connector (P5001) on Main P.C.B..
Step 14 Power SW P.C.B., Volume SW P.C.B., IR P.C.B., OLED P.C.B., Touch SW P.C.B., SMPS P.C.B., AMP P.C.B., BT Conne ct

P.C.B., CD P.C.B., Interlock SW P.C.B., Wifi Module and Main P.C.B. can be checked as diagram shown.

62

10 Block Diagram

ᵲᵵᶣᵑ

ᵲᵵᶣᵑ

ᵵᶍᶍᶄᶃᶐᶣᵐ

ᵵᶍᶍᶄᶃᶐᶣᵐ

Tact Switch/

VOLUME +/-

Power

IR

LED

Bluetooth

Module

CD

Driver

UART

I/F

RF

Servo

I/F

SD
I/F

USB

I2S

IN

ADC

16.9344MHz

OLED

SPI

sFlash

4Mbit

BT

Stuck

CD-ROM

Decoder

BT

Decoder

ᵱᶓᶀ ᵫᶇᶁᶍᶌ

Audio

ᵠᵫᵗᵒᵖᵎᵏᵩᵳ

FS

Encoder

I2S

IN

CLK gen

32.768kHz

Aiudio

Decoder

Reg.

OUT

OUT

16Mb

SDRAM

MCU

sFlash

32Mbit

I2S

I2S

Switch/LED

HOME RR FF STOP PLAY/PAUSE

E2P

ROM

PCM

MCLK

GPIO

Touch

Sensor IC

GPIO

RCA

GPIO
PWM

SPI(Master)

PCM

I2C

Main Micon

Buzzer

CLK

(Master)SPI

14MHz

32.768kHz

AD

GPIO

GPIO

DA

Virtual

Battery

PCM/DSD

BCLK/LRCK

110.592MHz

I2C

PWM processor

CLK
gen

MIX

Audio

SD1

SD3

I2C

I/F

Proce

+

ssor

SDO

PWM processor

CLK
gen

MIX

Audio

SD1

SD3

I2C

I/F

Proce

+

ssor

SDO

PWM processor

CLK
gen

MIX

Audio

SD1

SD3

I2C

I/F

Proce

+

ssor

SDO

PWM
Mod

ulator

PWM
Mod

ulator

PWM
Mod

ulator

Headphone

Amp

D-AMP

Power

Stage

Controller

D-AMP

Power

Stage

Controller

ᵲ

OPTICAL

PC
(USB-B)

F/W Update Only

USB-A

LAN

W-LAN

x2

S/PDIF

DIR

USB/IF

NXP

12MHz

I2C

WiFi

Module

I2C

SPI

Reg.

PCM

DSD

24.576MHz

22.5792MHz

PCM

DSD

+1.5V,+3.3V,+5V,+12.8V

Secondary

power source

+24V

12.8V

Audio

ADC

SMPS

63

11 Wiring Connection Diagram

CN7002

P6801

P8503P8502

P8501

CN7003

24P

15P

P4201

64P

5P

P9901

3P

P8401

8P

P9701

5P

P7604

P7605

5P

P5002

3P

P7301

8P

P2101

8P

P7003

4P

P7901

4P

P5001

24P

P1051

P1001

220 - 240V

50/60Hz

(EB/EG/GN)
120 V 60Hz

(PP)

15P

6P

P9721

6P

P7801

3P

24P

P7951

6P

P9801

5P

P9601

4P

P7501

20P

TO TRAVERSE

UNIT

24P

30P

P7602

P7601

6P

P7608

3P

P7607

20P

P7603

4P

P95018PP9502

30P

P7005

30P

P4551

40P

P4552

30P 40P

AC IN ~

CD P.C.B.

INTERLOCK
SW P.C.B.

HEADPHONE P.C.B.

USB P.C.B.

POWER SW P.C.B.

OLED P.C.B.

AMP P.C.B.

SMPS P.C.B.

MAIN P.C.B.

WIFI MODULE

BT CONNECT
P.C.B.

IR P.C.B.

FOOT ILLUMINATION P.C.B.

TOUCH SW P.C.B.

VOLUME SW P.C.B.

CD ILLUMINATION P.C.B.

SU-C500EB/EG/GN/PP, SU-C550EB/EG WIRING CONNECTION DIAGRAM

64

12 Exploded View and Replacement Parts List

(VOLUME SW P.C.B.)

(USB P.C.B.)

(TOUCH SW P.C.B.)

(POWER SW P.C.B.)

(OLED P.C.B.)

(IR P.C.B.)

(HEADPHONE P.C.B.)

(FOOT ILLUMINATION P.C.B.)

85

80

80

68

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

51

48

48

44

43

43

42

28

27

25

23

17

16

13

11

10

9

3

2

1

a

b

b

c

c

i

i

j

k

m

m

n

p

p

s

s

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

10 11 12 13

SU-C500EB/EG/GN/PP-S
CABINET DRAWING

12.1. Cabinet Parts Location 1 (SU-C500EB/EG/GN/PP)

65

(WiFi MODULE)

"**"

"**"

(SMPS P.C.B.)

(MAIN P.C.B.)

(INTERLOCK
SW P.C.B.)

(CD ILLUMINATION P.C.B.)

(CD P.C.B.)

(BT CONNECT P.C.B.)

(AMP P.C.B.)

306

306

305

305

305

305

304

304

304

304

303

303

303

303

302

301

*82

81

79

78

77

76

75

74

73

72

71

70

69

67

65

64

64

64

64

64

64

64

63

63

63

63

63

62

62

62

61

61

61

61

61

61

61

61

61

60

60

60

60

60

60

60

60

60

60

60

60

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

58

57

56

55

53

52

50

49

47

46

46

45

41

40

39

38

38

37

36

36

36

35

34

33

32

31

30

30

30

30

29

26

22

21

20

19

18

15

14

12

8

7

6

5

4

d

d

e

e

f

f

g

g

h

h

j

k

l

l

a

n

o

o

q

q

r

r

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

10 11 12 13

SU-C500EB/EG/GN/PP-S
CABINET DRAWING

NOTE: "**" PART IS NOT SUPPLIED.

* NOTE: After removing the adhesive for screw lock cleanly from the SCREW SPACER and the screw hole of SHAFT UNIT A, tighten up to the fastening torque: 7kgf・cm.

If some dusts of the adhesive for screw lock remains between SHAFT UNIT A and shaft plate, it may cause the operation failure or abnormal noise while opening/closing the CD cover.

12.2. Cabinet Parts Location 2 (SU-C500EB/EG/GN/PP)

66

SB-CT500EG

SU-C500EB/EG/GN/PP

**PAD

A6

A4

A3

A2

A1

A1

A1

AC CORD

(FOR PP ONLY)

AC CORD

(FOR GN ONLY)

AC CORD

(FOR EG ONLY)

A1

AC CORD

(FOR EB ONLY)

P4

P4

P3

*P2

*P2

FRONT

P1

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

10 11 12 13

CUSHION (FRONT)

CUSHION (REAR)

*P2

SC-C500EB/EG/GN/PP-S
PACKAGING DRAWING

NOTE: “**” PART IS NOT SUPPLIED.

12.3. Packaging (SC-C500EB/EG/GN/PP)

67

12.4. Cabinet Parts Location 1 (SU-C550EB/EG)

(VOLUME SW P.C.B.)

(USB P.C.B.)

(TOUCH SW P.C.B.)

(POWER SW P.C.B.)

(OLED P.C.B.)

(IR P.C.B.)

(HEADPHONE P.C.B.)

(FOOT ILLUMINATION P.C.B.)

85

80

80

68

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

51

48

48

44

43

43

42

28

27

25

23

17

16

13

11

10

9

3

2

1

a

b

b

c

c

i

i

j

k

m

m

n

p

p

s

s

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

10 11 12 13

SU-C550EB/EG-S
CABINET DRAWING

68

12.5. Cabinet Parts Location 2 (SU-C550EB/EG)

(WiFi MODULE)

(SMPS P.C.B.)

(MAIN P.C.B.)

"**"

"**"

(INTERLOCK
SW P.C.B.)

(CD ILLUMINATION P.C.B.)

(CD P.C.B.)

(BT CONNECT P.C.B.)

(AMP P.C.B.)

306

306

305

305

305

305

304

304

304

304

303

303

303

303

302

301

83

*82

81

79

78

77

76

75

74

73

72

71

70

69

67

65

64

64

64

64

64

64

64

63

63

63

63

63

62

62

62

61

61

61

61

61

61

61

61

61

60

60

60

60

60

60

60

60

60

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

58

57

56

55

53

52

50

49

47

46

46

45

41

40

39

38

38

37

36

36

36

35

34

33

32

31

30

30

30

30

29

26

22

21

20

19

18

15

14

12

8

7

6

5

4

d

d

e

e

f

f

g

g

h

h

j

k

l

l

a

n

o

o

q

q

r

r

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

10 11 12 13

SU-C550EB/EG-S
CABINET DRAWING

* NOTE: After removing the adhesive for screw lock cleanly from the SCREW SPACER and the screw hole of SHAFT UNIT A, tighten up to the fastening torque: 7kgf・cm.

If some dusts of the adhesive for screw lock remains between SHAFT UNIT A and shaft plate, it may cause the operation failure or abnormal noise while opening/closing the CD cover.

NOTE: "**" PART IS NOT SUPPLIED.

69

SU-C550EB/EG

**PAD

A6

A3

A2

A1

AC CORD

(FOR EG ONLY)

A1

AC CORD

(FOR EB ONLY)

P5

P4

P4

P3

*P2

*P2

FRONT

P1

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

10 11 12 13

CUSHION (FRONT)

CUSHION (REAR)

*P2

SU-C550EB/EG-S
PACKAGING DRAWING

NOTE: “**” PART IS NOT SUPPLIED.

12.6. Packaging (SU-C550EB/EG)

70

12.7. Mechanical Replacement Part List

12.7.1. SU-C500EB/EG/GN/PP

Safety Ref.

No.

1 REE2120 30P FFC (OLED -

2 REE2122 6P FFC (IR -

3 REE2123-1 20P FFC (TOUCH

4 REE2124 24P FFC (CD-

5 REE2125 4P FFC (CD ILLU-

6 REE2126 8P FFC (MAIN-BT

7 REE2127 30P FFC (MAIN-

8 REE2128 40P FFC (MAIN-

9 REE2133 6P FFC (FOOT

10 REX1749 4P SHIELDED WIRE

11 REX1891 8P WIRE (USB-

12 REX1894 3P WIRE (INTER-

Part No. Part Name &

Description

CABINET AND
CHASSIS

MAIN)

OLED)

SW - OLED)

MAIN)

MINATION - MAIN)

CONNECT)

AMP)

AMP)

ILLUMINATION ­OLED)

(USB-MAIN)

MAIN)

LOCK SW-MAIN)

Qty Remarks

1

1

1

1

1

1

1

1

1

1

1

1

Safety Ref.

No.

13 REX1893 3P WIRE (VOLUME

14 REX1889 5P WIRE (HEAD-

15 REX1888 15P WIRE (SMPS-

16 REX1892 5P WIRE (POWER

17 RYK1921-S FRONT PANEL UNIT 1

18 RGG0277-S TOP AL PANEL 1

19 RGG0278-S SIDE AL PANEL L 1

20 RGG0279-S SIDE AL PANEL R 1

21 RGK2620-S SCREW CAP 1

22 RGK2621-K LID ORNAMENT 1

23 RGK2624-S POWER SW COVER 1

25 RGL0814-Q LIGHT GUIDE 1

26 RGL0824-W CD LIGHTING

27 RGL0825-W PICT LIGHT GUIDE 1

28 RGL0838-W FOOT LIGHT GUIDE 1

29 RGR0483A-A1 REAR PANEL 1 EB/EG/

29 RGR0483A-B REAR PANEL 1 PP

30 RKAX0042-K RUBBER LEG 4

31 RKF0988-Q1 CD LID 1

32 RDG0670 DAMPER 1

33 RMA2538 PCB ANGLE 1

34 RXJ0054 SHAFT PLATE UNIT 1

35 RMB1000 SPRING 1

36 RMG1033-W LID RUBBER A 3

Part No. Part Name &

Description

SW - OLED)

PHONE - AMP)

AMP)

SW - OLED)

GUIDE

Qty Remarks

1

1

1

1

1

GN

71

Safety Ref.

No.

37 RMG1051-K WIFI CUSHION 1

38 RMG1056-K CUSHION 2

39 RMK0908 BOTTOM CHASSIS 1

40 RMM0319 RAIL HOLDER 1

41 RMM0320-1 GUIDE HOLDER 1

42 RMN1130 HOLDER (OLED) 1

43 RMQ2367 PICT WINDOW

44 RMQ2582 POWER SW TAPE 1

45 RMQ2491 HEX SPACER 1

46 RMQ2513 REAR GASKET 2

47 RMQ2514 AMP GASKET 1

48 RMQ2515 HP PCB GASKET 2

49 RMQ2537 EPT SEALER A 1

50 RMV0451 HEAT COVER 1

51 RMV0458 LIGHT BLIND

52 RMV0459 COVER MECHA

53 RMV0460 COVER WIRE 1

55 RSC1317 MAIN SHIELD 1

56 RSC1318 MECHA SHIELD 1

57 RSC1319 SHIELD L 1

58 RSC1320 SHIELD R 1

59 RHD26046 SCREW 68

60 RHD30119-K SCREW 12

61 VHD1224-1A SCREW 9

62 XTB3+14JFJK SCREW 3

63 XTW26+8SFJK SCREW 5

64 XYN3+C8FJK SCREW 7

65 XYN3+F5FN SCREW 1

67 RHDX261002 SCREW 1

68 L5HAAYY00005 DISPLAY MODULE 1

69 N1CYYYY00019 DIPOLE ANTENNA 1

70 N1CYYYY00020 DIPOLE ANTENNA 1

71 RKM0770A-W BT ANGLE 1

72 RKM0770B-W POWER PCB SUP-

73 RKM0770C-W MECHA SUPPORT A 1

74 RKM0770D-W MECHA SUPPORT B 1

75 RKM0770E-W SW PCB SUPPORT 1

76 RKM0770F-W DAMPER SUPPORT 1

77 RKM0770G-W SPRING SUPPORT 1

78 RGK2623C-K ANTENNA ANGLE L 1

79 RGK2623D-K ANTENNA ANGLE R 1

80 RGK2623A-K PCB SPACER 2

81 RKM0770-W1 MID CABINET 1

82 RMQ2563 SCREW SPACER 1

85 RGK2623B-K POWER SW BASE 1

301 RAE5307Z-V TRAVERSE UNIT 1

302 RMQ2020-1J MECHA CHASSIS 1

303 RMG0730-G FLOATING RUBBER 4

304 RME0109-1 FLOATING SPRING 4

305 RMS0757-1 FIXED PIN 4

306 XTN2+6GFJ SCREW 2

Part No. Part Name &

Description

CUSHION

COVER

SHIELD

PORT

TRAVERSE DECK

Qty Remarks

2

1

1

1

12.7.2. SC-C500EB/EG/GN/PP

Safety Ref.

No.

P1 SPG0521-1 PACKING CASE 1 EG

P1 SPG0522 PACKING CASE 1 EB

P1 SPG0524 PACKING CASE 1 PP

P1 SPG0525 PACKING CASE 1 GN

P2 SPN0375-2 MAINSET CUSHION 1

P3 SPH0019 PE SHEET 1

P4 SPN0444 SIDE PAD 2

A1 K2CG3YY00191 AC CORD 1 PP

A1 K2CK3YY00083 AC CORD 1 GN

A1 K2CM3YY00041 AC CORD 1 EG

A1 K2CT3YY00081 AC CORD 1 EB

A2 N2QAYA000114 REMOTE CONTROL 1

A3 SQT1065 OI (Sp/Sw/Da/Fi) 1 EG

A3 SQT1066 OI (En) 1 EB/GN

A3 SQT1068 OI (En/Cf) 1 PP

A3 SQT1113 OI (Ge/Fr/It/Du) 1 EG

A4 RFA3668 SPEAKER CORD 1

A6 SFM0118 DEMO SONG CD 1

Part No. Part Name &

Description

PACKING MATERI­ALS

ACCESSORIES

12.7.3. SU-C550EB/EG

Safety Ref.

No.

1 REE2120 30P FFC (OLED -

2 REE2122 6P FFC (IR -

3 REE2123-1 20P FFC (TOUCH

4 REE2124 24P FFC (CD-

5 REE2125 6P FFC (CD ILLU-

6 REE2126 8P FFC (MAIN-BT

7 REE2127 30P FFC (MAIN-

8 REE2128 40P FFC (MAIN-

9 REE2133 6P FFC (FOOT

10 REX1749 4P SHIELDED WIRE

11 REX1891 8P WIRE (USB-

12 REX1894 3P WIRE (INTER-

13 REX1893 3P WIRE (VOLUME

14 REX1889 5P WIRE (HEAD-

15 REX1888 15P WIRE (SMPS-

16 REX1892 5P WIRE (POWER

17 RYK1921-S FRONT PANEL UNIT 1

18 RGG0277-S TOP AL PANEL 1

19 RGG0278-S SIDE AL PANEL L 1

20 RGG0279-S SIDE AL PANEL R 1

Part No. Part Name &

Description

CABINET AND
CHASSIS

MAIN)

OLED)

SW - OLED)

MAIN)

MINATION - MAIN)

CONNECT)

AMP)

AMP)

ILLUMINATION ­OLED)

(USB-MAIN)

MAIN)

LOCK SW-MAIN)

SW - OLED)

PHONE - AMP)

AMP)

SW - OLED)

Qty Remarks

Qty Remarks

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

72

Safety Ref.

No.

21 RGK2620-S SCREW CAP 1

22 RGK2621-K LID ORNAMENT 1

23 RGK2624-S POWER SW COVER 1

25 RGL0814-Q LIGHT GUIDE 1

26 RGL0824-W CD LIGHTING

27 RGL0825-W PICT LIGHT GUIDE 1

28 RGL0838-W FOOT LIGHT GUIDE 1

29 RGR0483B-A REAR PANEL 1

30 RKAX0042-K RUBBER LEG 4

31 RKF0988-Q1 CD LID 1

32 RDG0670 DAMPER 1

33 RMA2538 PCB ANGLE 1

34 RXJ0054 SHAFT PLATE UNIT 1

35 RMB1000 SPRING 1

36 RMG1033-W LID RUBBER A 3

37 RMG1051-K WIFI CUSHION 1

38 RMG1056-K CUSHION 2

39 RMK0908 BOTTOM CHASSIS 1

40 RMM0319 RAIL HOLDER 1

41 RMM0320-1 GUIDE HOLDER 1

42 RMN1130 HOLDER(OLED) 1

43 RMQ2367 PICT WINDOW

44 RMQ2582 POWER SW TAPE 1

45 RMQ2491 HEX SPACER 1

46 RMQ2513 REAR GASKET 2

47 RMQ2514 AMP GASKET 1

48 RMQ2515 HP PCB GASKET 2

49 RMQ2537 EPT SEALER A 1

50 RMV0451 HEAT COVER 1

51 RMV0458 LIGHT BLIND

52 RMV0459 COVER MECHA

53 RMV0460 COVER WIRE 1

55 RSC1317 MAIN SHIELD 1

56 RSC1318 MECHA SHIELD 1

57 RSC1319 SHIELD L 1

58 RSC1320 SHIELD R 1

59 RHD26046 SCREW 68

60 RHD30119-K SCREW 9

61 VHD1224-1A SCREW 9

62 XTB3+14JFJK SCREW 3

63 XTW26+8SFJK SCREW 5

64 XYN3+C8FJK SCREW 7

65 XYN3+F5FN SCREW 1

67 RHDX261002 SCREW 1

68 L5HAAYY00005 DISPLAY MODULE 1

69 N1CYYYY00019 DIPOLE ANTENNA 1

70 N1CYYYY00020 DIPOLE ANTENNA 1

71 RKM0770A-W BT ANGLE 1

72 RKM0770B-W POWER PCB SUP-

73 RKM0770C-W MECHA SUPPORT A 1

74 RKM0770D-W MECHA SUPPORT B 1

75 RKM0770E-W SW PCB SUPPORT 1

76 RKM0770F-W DAMPER SUPPORT 1

77 RKM0770G-W SPRING SUPPORT 1

78 RGK2623C-K ANTENNA ANGLE L 1

79 RGK2623D-K ANTENNA ANGLE R 1

80 RGK2623A-K PCB SPACER 2

81 RKM0770-W1 MID CABINET 1

82 RMQ2563 SCREW SPACER 1

83 RMQ2200 PC SHEET 1

85 RGK2623B-K POWER SW BASE 1

Part No. Part Name &

Description

GUIDE

CUSHION

COVER

SHIELD

PORT

Qty Remarks

1

2

1

1

1

Safety Ref.

No.

306 XTN2+6GFJ SCREW 2

P1 SPG0526 PACKING CASE 1 EG

P1 SPG0527 PACKING CASE 1 EB

P2 SPN0375-2 MAINSET CUSHION 1

P3 SPH0019 PE SHEET 1

P4 SPN0444 SIDE PAD 2

P5 RPN2767 BOTTOM PAD 1

A1 K2CM3YY00041 AC CORD 1 EG

A1 K2CT3YY00081 AC CORD 1 EB

A2 N2QAYA000114 REMOTE CONTROL 1

A3 SQT1114 OI (En) 1 EB

A3 SQT1115 OI (Ge/Fr/It/Du) 1 EG

A3 SQT1116 OI (Sp/Sw/Da/Fi) 1 EG

A6 SFM0118 DEMO SONG CD 1

Part No. Part Name &

Description

PACKING MATERI­ALS

ACCESSORIES

Qty Remarks

TRAVERSE DECK

301 RAE5307Z-V TRAVERSE UNIT 1

302 RMQ2020-1J MECHA CHASSIS 1

303 RMG0730-G FLOATING RUBBER 4

304 RME0109-1 FLOATING SPRING 4

305 RMS0757-1 FIXED PIN 4

73

12.8. Electrical Replacement Parts List

12.8.1. SU-C500EB/EG/GN/PP

Safety Ref.

No.

PCB1 SEP0546AD MAIN P.C.B 1 PP

PCB1 SEP0546AC MAIN P.C.B 1 GN

PCB1 SEP0546AA MAIN P.C.B 1 EG

PCB1 SEP0546AB MAIN P.C.B 1 EB

PCB2 SEP0547AA AMP P.C.B 1

PCB3 SEP0550AA TOUCH SW P.C.B 1

PCB4 SEP0548AB SMPS P.C.B 1 PP

PCB4 SEP0548AA SMPS P.C.B 1 EB/EG/

PCB5 SEP0549AA OLED P.C.B 1

PCB6 SEP0551AA-S USB P.C.B 1

PCB7 SEP0552AA HEADPHONE P.C.B 1

PCB8 SEP0553AA POWER SW P.C.B 1

PCB9 SEP0556AA INTERLOCK SW

PCB10 SEP0557AA VOLUME SW P.C.B 1

PCB11 SEP0558AA IR P.C.B 1

PCB12 SEP0634AA CD ILLUMINATION

PCB13 SEP0635AA FOOT ILLUMINA-

PCB14 SEP0653AA BT CONNECT P.C.B 1

PCB15 REP5057A CD P.C.B 1

PCB16 SFKZUC500EAA WIFI MODULE 1

F1 K5G312Y00007 FUSE 1

Part No. Part Name &

Description

PRINTED CIRCUIT
BOARDS

P.C.B

P.C.B

TION P.C.B

FUSES

Qty Remarks

GN

1

1

1

Safety Ref.

No.

F2 K5G202Y00006 FUSE 1

IP7001 ERBRE1R50V FUSE 1

Part No. Part Name &

Description

12.8.2. SU-C550EB/EG

Safety Ref.

No.

PCB1 SEP0546AF MAIN P.C.B 1 EG

PCB1 SEP0546AG MAIN P.C.B 1 EB

PCB2 SEP0547AB AMP P.C.B 1

PCB3 SEP0550AA TOUCH SW P.C.B 1

PCB4 SEP0548AA SMPS P.C.B 1

PCB5 SEP0549AA OLED P.C.B 1

PCB6 SEP0551AA-S USB P.C.B 1

PCB7 SEP0552AA HEADPHONE P.C.B 1

PCB8 SEP0553AA POWER SW P.C.B 1

PCB9 SEP0556AA INTERLOCK SW

PCB10 SEP0557AA VOLUME SW P.C.B 1

PCB11 SEP0558AA IR P.C.B 1

PCB12 SEP0634AA CD ILLUMINATION

PCB13 SEP0635AA FOOT ILLUMINA-

PCB14 SEP0653AA BT CONNECT P.C.B 1

PCB15 REP5057A CD P.C.B 1

PCB16 SFKZUC500EAA WIFI MODULE 1

Part No. Part Name &

Description

PRINTED CIRCUIT
BOARDS

P.C.B

P.C.B

TION P.C.B

FUSES

Qty Remarks

Qty Remarks

1

1

1

74

Safety Ref.

No.

F1 K5G312Y00007 FUSE 1

F2 K5G202Y00006 FUSE 1

IP7001 ERBRE1R50V FUSE 1

Part No. Part Name &

Description

Qty Remarks

MMH1511

75