15.4. SMPS & Voltage Selector P.C.B.---------------------92
15.5. Control Jog LED, Volume Jog LED & CD
Interface P.C.B. -------------------------------------------93
16 Appendix Information of Schematic Diagram --------- 95
16.1. Voltage & Waveform Chart---------------------------- 95
17 Exploded View and Replacement Parts List----------105
17.1. Exploded View and Mechanical replacement
Part List ---------------------------------------------------105
17.2. Electrical Replacement Part List--------------------111
2
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1Safety 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 1MΩ and 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be
1.1.2.Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1-1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across th e resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equiva lent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure 1-1
3
Page 4
1.2.Before Use
Be sure to disconnect the mains cord before adjusting the voltage selector as shown in Figure 1-2.
Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be
used.
Note that this unit will be seriously damaged if this setti ng is not made correctly. (There is no voltage selector for some countries,
the correct voltage is already set.)
Figure 1-2
1.3.Before Repair and Adjustment
Disconnect AC power to discharge the AC Capacitors (C5700, C5701, C5702, C5703, C5704, C5705, C5707, C5708) through a 10
Ω, 10 W resistor to ground.
Caution:
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 110~127 V/220~240 V, 50/60 Hz in FM Tuner at volume minimum should be ~ 850mA.
1.4.Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.5.Caution For Fuse Replacement
4
Page 5
1.6.Safety Parts Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
Safety Ref No.Part No.Part Name & DescriptionRemarks
14REXX1122-K1P BLK WIRE (VOLTAGE SELECTOR - SMPS)
15REXX1123-K1P RED WIRE (VOLTAGE SELECTOR - SMPS)
22RGR0439C-C1REAR PANEL
41RKM0702-KTOP CABINET
301RAE1037Z-VTRAVERSE ASS'Y
A2K2CQ2YY00119 AC CORD
A3RQT9800-MO/I BOOK (Sp/En)
PCB10REP4908GSMPS P.C.B.(RTL)
PCB11REP4908GVOLTAGE SELECTOR P.C.B.(RTL)
DZ5701 D4EAY511A127 VARISTOR(E.S.D)
S5701K0ABCA000007 VOLT ADJ
L5701G0B183J00002 LINE FILTER
L5702G0B183J00002 LINE FILTER
T5701G4DYZ0000070 TRANSFORMER
T5751G4DYZ0000064 TRANSFORMER
T6000G4DYA0000214 TRANSFORMER
TH5861 D4CCY1040001 THERMISTOR
PC5701 B3PBA0000579 PHOTO COUPLER
PC5702 B3PBA0000579 PHOTO COUPLER
PC5720 B3PBA0000579 PHOTO COUPLER
PC5799 B3PBA0000579 PHOTO COUPLER
F1K5D103BNA005 FUSE
P5701K2AA2B000011 AC INLET
R5708D0GF155JA048 1.5M 1/4W
R5709D0GF155JA048 1.5M 1/4W
R5901ERG2SJ471E470 2W
R5902ERG2SJ471E470 2W
R5903ERG2SJ471E470 2W
R5904ERG2SJ471E470 2W
R5905ERG2SJ471E470 2W
R5906ERG2SJ471E470 2W
R5907ERG2SJ471E470 2W
R5908ERG2SJ471E470 2W
C5700F1BAF471A013 470pF
C5701F0CAF104A105 0.1uF
C5702F0CAF104A105 0.1uF
C5703F0CAF104A105 0.1uF
C5704F1BAF471A013 470pF
C5705F1BAF471A013 470pF
C5707F1BAF471A013 470pF
C5708F1BAF471A013 470pF
5
Page 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 Electrostatically Sensitive (ES) Devices.
The following techniques should be used to help reduce the incidence of component damage caused by el ectrostatic 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 cond uctive surface su ch as a luminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
CAUTION:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).
6
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2.2.Precaution of Laser Diode
Caution:
This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.
Wavelength: 790 nm (CD)
Maximum output radiation power from 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.
Figure 2-1
7
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2.3.Service caution based on Legal restrictions
2.3.1.General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards us ed for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
Service caution for repair work using Lead Free Solder (PbF)
• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)
• To put lead free solder, it should be well molten and mixed with the original lead free solder.
• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
• Since the melting point of the lead free solder is higher th an 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 contro l 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%
8
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2.4.Handling Precautions for Traverse Unit
The laser diode in the optical pickup unit may break down du e 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 ma y be damaged due to electrostatic discharge genera ting 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 p revent 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 FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible cable, cut off the antistatic FPC.
Figure 2-2
9
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2.5.Grounding for electrostatic breakdown prevention
• As for parts that use optical pick-up (laser diode), the optical pick-up is destroyed by the static electricity of the working environment.
Repair in the working environment that is grounded.
2.5.1.Worktable grounding
• Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed and ground the sheet.
2.5.2.Human body grounding
• Use the anti-static wrist strap to discharge the static electricity form your body Figure 2-3.
Figure 2-3
10
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3Service Navigation
3.1.Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information wil l be followed b y supplement se rvice manual to be fil ed with origin al se rvice
manual.
• Micro-processor:
1) The following components are supplied as an assembled part.
- Micro-processor IC, IC2006 (RFKWMMAX200M)
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3.2.Firmware Update Procedure
Start
Write encrypted UPD bin to CD-R
Turn On main set
Insert CD-R (with UPD bin) and
close
TOC reading
"CHECKING"
Writing starts:
"0%" -> "20%" -> "40%" ->
"60%" -> "80%" -> 100%"
"GOOD" display 3 sec
Set auto turn Off -> Cold Start
End
NG
"NO PLAY"
process end
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4Specifications
Q Amplifier section
RMS output power stereo mode
Front Speaker SB-MAF200
300 W per channel (3Ω), 1 kHz, 30% THD
Subwoofer Speaker SB-MAY200
300 W per channel (3Ω), 100 Hz, 30% THD
Subwoofer Speaker B-MAW200
440 W per channel (2Ω), 100 Hz, 30% THD
Total RMS stereo mode power2080 W (30% THD)
Q
Q Tuner, terminals section
QQ
Preset stationFM 30 stationsAM 15 stations
Frequency modulation (FM)
Frequency range
87.50 to 108.00 MHz (50 kHz step)
Antenna terminals75 Ω (unbalanced)
Amplitude modulation (AM)
Frequency range
522 kHz to 1629 kHz (9 kHz step)
520 kHz to 1630 kHz (10 kHz step)
Microphone jack
Sensitivity0.7 mV, 1.1 kΩ
TerminalMono, 3.5 mm jack (1 system)
Music port (front)
Sensitivity100 mV, 4.7 kΩ
TerminalStereo, 3.5 mm jack
Recording file formatMP3 (*.mp3)
Q General
Power supplyAC 110 to 127/220 to 240 V,
Power consumption195 W
Power consumption in
standby mode
Dimensions (W x H x D)485 mm x 231 mm x 378 mm
Mass4.8 kg
Operating temperature
range
Operating humidity range35% to 80% RH
1. Specifications are subject to change without notice.
Mass and dimension are appropriate
2. Total harmonic distortion is measured by the digital spectrum analyzer.
Q System: SC-MAX200PHK
Front Speaker: SB-MAF200PHK
Subwoofer: SB-MAY200PHK
Subwoofer: SB-MAW200PHK
0.3 W (approximate)
0 °C to +40 °C
(no condensation)
Main Unit: SA-MAX200PHK
50/60 Hz
Aux inputRCA pin jack
Q
Q Disc section
QQ
Disc played (8 cm or 12 cm)CD, CD-R/RW(CD-DA, MP3*)
Pick up
Wavelength790 nm(CD)
Audio output (disc)
Number of channels2.4 ch (FL, FR, SW)
FL = Front left channel
FR = Front right channel
SW = Subwoofer channel
*MPEG-1 Layer 3
Q
Q Internal memory section
QQ
Memory
Memory size4 GB
Media file format supportMP3 (*.mp3)
Memory recording
Bit rate 128 kbps
Memory recording speed1x, 3x max (CD only)
Recording file formatMP3 (*.mp3)
Capacity of total songs
recorded
(use 128 kbps, approximately 1 song = 4 mins)
Q
Q USB section
QQ
USB port
USB standardUSB 2.0 full speed
Media file format support MP3 (*.mp3)
USB device file systemFAT12, FAT16, FAT32
USB port power500 mA (max)
Bit rate 16 kbps to 320 kbps (playback)
USB recording
Bit rate 128 kbps
USB recording speed1x, 3x max (CD only)
1000 songs
13
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5General/Introduction
5.1.Media Information
14
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6Location of Controls and Components
6.1.Remote Control Key Button Operation
15
Page 16
6.2.Main Unit Key Button Operation
16
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7Installation Instructions
7.1.Speaker and A/C Connection
17
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8Service Mode
8.1.Cold-Start
Here is the procedure to carry out cold-start or initialize to shipping mode.
1. Unplug AC power cord
2. Press & hold [POWER] button
3. Plug AC power cord while [POWER] button being pressed
FL Display will show “_ _ _ _ _ _ _ _”
4. Release [POWER] button
18
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8.2.Doctor Mode Table
8.2.1.Doctor Mode Table 1
Doctor Mode
EEPROM
checksum
check
Item
DescriptionMode Name
To enter into Doctor ModeIn CD Mode:
Displaying of
1. Year Develop.
2. Model Type.
3. ROM Type.
4. Firmware Version.
(Display 1)
Version No. (001 ~ 999) specific for each
firmware
FL Display
(Decimal)1 2 34
Key Operation
Front Key
1. Press [ ] button on
main unit follow by [4]
and [7] on remote control.
2. To exit, press [DELETE]
button on remote control or,
press [POWER, /I] button on
Main Unit
In CD mode:
1. Enter into Doctor Mode
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Page 20
8.2.2.Doctor Mode Table 2
Item
DescriptionMode Name
Volume Setting
Check
FL Display Check
Traverse TestTo determine the traverse unit
To check the volume setting of the
main unit.
To check the FL segment display.
All segments will light up while all LED
blink at 0.5s intervals.
operation for inner & outer access track.
In this mode,ensure the CD is in the
main unit.
FL Display
Press [7]: VOL50
Press [8]: VOL35
Press [9]: VOL0
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
Key Operation
Front Key
In Doctor Mode:
1. Press [7], [8], [9] button on
the remote control.
Volume
In Doctor mode:
1. Press [1] button on the
remote control.
2. To cancel this mode, press
[0] button on the remote control.
In Doctor Mode:
1. Press [10] [1] [2] button
on the remote control.
Note: Refer to Section 8.3 Figure 8-2
.
for process flow
Reliability Test
(Combination)
Loading TestTo determine the open & close
To determine the traverse unit
operation & open/close operation of the
mechanism.
In this mode,ensure the CD is in the
main unit.
Note: Refer to Section 8.3 Figure 8-3
for process flow
operation of the CD Mechanism Unit.
In this mode, the tray will open & close
automatically.
Note: Refer to Section 8.3 Figure 8-1
for process flow
2. To cancel this mode, press
[0] button on the remote control.
In Doctor Mode:
1. Press [10] [1] [5] button
on the remote control.
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
2. To cancel this mode, press
[0] button on the remote control.
In Doctor Mode:
1. Press [10] [2] [1] button
on the remote control.
The counter will
increment by one.
When reach 99999999
will change to 00000000
Cancellation Display
2. To cancel this mode, press
[0] button on the remote control.
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8.2.3.Doctor Mode Table 3
CD
Self- Adjustment
Test
Item
DescriptionMode Name
To display result of
self-adjustment for CD.
FL Display
Display of auto adjustment
result
Reference table:
ERROR Code
Status
Condition
0 1 2 4 6 8 A C E F
AOC1/AOC2 O O O O O O O O -
ABC2/ABC1 O - X O X O X O X -
nd
AOC1O - O X X O O X X -
2
FAGC/TAGC O - O O O X X X X -
AGC2O - O O O O O O O
O : OK;
X : NG (In case that time out happens.)
: Either one of FO AOC, TR AOC and FO
coarse AGC is NG.
: If the AGC is NG (ignore others).
Key Operation
Front Key
In Doctor Mode
:
1. Press [10] [1] [4] button
on the remote control.
To cancel this mode, press [0]
button on the remote control.
CD LSI Version
Check
For checking CD LSI Version and
checksum information.
(Display 1)
(Display 2)
Year Develop
Checksum (Hex)
ROM
Type
Version (Decimal)
In Doctor Mode:
1. Press [4] button on the
remote control.
after
2 sec
To cancel this mode, press [0]
button on the remote control.
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8.3.Reliability Test Mode (CD Mechanism Unit)
Below is the process flow chart of the aging test for the CD Mechanism Unit .
OPEN
Operation
OPEN wait
for 1 s
CLOSE
Operation
CLOSE wait
for 4 s
Fig. 1. Reliability Test (Loading)
Count up
First Track
Access
First Track
Play 10 s
First Track
Access
First Track
Play 5 s
Last Track
Access
Last Track
Play 5 s
Fig. 2. Reliability Test (Traverse)
Count up
Last Track
Access
Last Track
Play 10 s
Open
Operation
Open wait
for 1 s
CLOSE
Operation
Fig. 3. Reliability Test (Combination)
Count up
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8.4.Self-Diagnostic Mode
Item
Mode Name
Self Diagnostic
Mode
Error code
information
Delete error
code
Cold StartTo active cold start upon next AC
To enter into self diagnostic checking
System will perform a check on any
unusual/error code from the memory
To clear the stored in memory
(EEPROM IC)
power up when reset start is
execute the next time.
Description
Example:
FL Display
Key Operation
Front Key
Step 1: Select CD mode
(Ensure no disc is inserted).
Step 2: Press & hold [ ] button
follow by [ ] on
main unit for 2 seconds.
Step 1: In self diagnostic mode,
Press [ ] on main unit.
To exit, press [^/I] on main
unit or remote control.
Step 1: In self diagnostic mode,
Press [0] on remote control.
To exit, press [^/I] on main
unit or remote control.
In self diagnostic mode:
1. Press [3] button on
the remote control.
/
8.5.Self-Diagnostic Error Code Table
Self-Diagnostic Function (Refer Section 8.4. Self-Diagnostic Mode) provides information on any problems occurring for the unit and
its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held
unless it is cleared.
The error code is automatically display after entering into self-diagnostic mode.
Error CodeDiagnostic ContentsDescription of errorAutomatic FL DisplayRemarks
CD H15CD Open AbnormalDuring operation
CD H16CD Closing AbnormalDuring operation
F26Communication between
CD servo LSI and micro-p
abnormal.
POS_SW_R On fail to be
detected with 4 sec. Error
No. shall be clear by force
or during cold start.
POS_SW_CEN On fail to
be detected with 4 sec.
Error No. shall be clear by
force or during cold start.
During switch to CD function, if SENSE = “L” within
failsafe time of 20ms.
8.6.Sales Demonstration Lock Function
8.6.1.Entering into Sales demonstration lock mode
Here is the procedures to enter into the Sales demonstration lock mode.
Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Press and hold [
The display will show upon entering into this mode for 2 sec..
OPEN/CLOSE] and [CD] keys for 5 sec or more.
Press [
next error.
Press [
next error.
Press [
next error.
] on main unit for
] on main unit for
] on main unit for
Note: [
OPEN/CLOSE] button is invalid and the main unit displays “LOCKED” while the lock function mode is entered.
8.6.2.Cancellation of Sales demonstration lock mode
Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Set volume to Vol 19.
Step 4: Press and hold [
The display will show upon entering into this mode for 2 sec..
OPEN/CLOSE] and [CD] keys for 5 sec or more.
24
Page 25
9Troubleshooting Guide
"Contents for this section is not available at time of issue"
25
Page 26
10 Disassembly and Assembly Instructions
Caution Note:
• This section describes the disassembly and/or assembly procedures for all major printed circuit boa rds & main components for
the unit. (You may refer to the section of “Main components and P.C.B Locations ” as described in the service manual)
• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.
• During the disassembly and/or assembly process, please handle with care as there may be chassis components with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)
• During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used.
• During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the service manual.
• Select items from the following indexes when disassembly or replacement are required.
• Disassembly of Top Cabinet
• Disassembly of Front Panel Unit
• Disassembly of FL Display P.C.B.
• Disassembly of Illumination Button P.C.B.
• Disassembly of Control P.C.B.
• Disassembly of Control Jog LED P.C.B.
• Disassembly of Volume P.C.B.
• Disassembly of Volume Jog LED P.C.B.
• Disassembly of Remote Sensor P.C.B.
• Disassembly of USB P.C.B.
• Disassembly of Mic P.C.B.
• Disassembly of LED P.C.B.
• Disassembly of CD Lid P.C.B.
• Disassembly of CD Mechanism Unit
• Disassembly of Rear Panel
• Disassembly of Main P.C.B.
• Replacement of Digital Amplifier IC (IC2501,IC2502,IC2503,IC2504)
• Disassembly of SMPS P.C.B. and Voltage Selector P.C.B.
• Replacement of Switching Regulator (Q5700)
• Replacement of Diode (D5801)
• Replacement of Diode (D5802)
• Disassembly of CD Interface P.C.B.
10.1.Screw Types
26
Page 27
10.2.Disassembly Flow Chart
10.4. Top Cabinet
10.21. SMPS P.C.B.
and Voltage Selector
P.C.B.
10.22. Switching
Regulator (Q5700)
10.23. Diode (D5801)
10.24. Diode (D5802)
10.5. Front Panel Unit
10.6. FL Display P.C.B.
10.7. Illumination
Button P.C.B.
10.8. Control P.C.B.
10.9. Control Jog LED
P.C.B.
10.10. Volume P.C.B.
10.17. CD Mechanism
Unit
10.25. CD Interface
P.C.B.
10.18. Rear Panel
10.19. Main P.C.B.
10.20. Digital Amplifier
IC (IC2501,IC2502,
IC2503,IC2504)
10.11.Volume Jog LED
P.C.B.
10.12. Remote Sensor
P.C.B.
10.13. USB P.C.B.
10.14. Mic P.C.B.
10.15. LED P.C.B.
11.15. CD Lid
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10.3.Main Components and P.C.B. Locations
28
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10.4.Disassembly of Top Cabinet
Step 1 Remove 3 screws.
Step 2 Remove 3 screws.
Step 5 Slightly lift up the Top Cabinet.
Step 6 Remove the Top Cabinet.
Caution: During assembling, ensure that the catches of the
Top Cabinet catches are properly located & inserted into
the Front Panel Unit as shown.
Step 3 Remove 5 screws.
Step 4 Slightly release both sides of the Top Cabinet as arrow
shown.
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10.5.Disassembly of Front Panel
Unit
• Refer to “Disassembly of To p Cab in et”.
Step 1 Remove 1 screw.
Step 2 Detach 10P FFC at the connector (CN2002) on Main
P.C.B..
Step 3 Detach 11P Cable at the connector (CN2001) on Main
P.C.B..
Step 4 Detach 30P FFC at the connector (CN2004) on Main
P.C.B..
Step 5 Detach 5P Wire at the connector (FP3001) on Main
P.C.B..
Step 7 Remove the Front Panel Unit
Step 6 Release tabs at the bottom of the unit.
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10.6.Disassembly of FL Display
P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove 6 screws.
Step 2 Release 4 catches.
Step 3 Lift up the FL Display P.C.B..
Step 4 Detach 30P FFC at a connector (CN6002) on the FL
Display P.C.B..
Step 5 Remove the FL Display P.C.B..
Caution: During assembling, ensure that the FL Display
P.C.B. is properly located and fully catched onto the Front
Panel Unit.
10.7. Disassembly of Illumination
Button P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove 2 screws.
Step 2 Detach 2P Cable at a connector (CN6800) on the Illumi-
nation Button P.C.B..
Step 3 Lift up to remove the Illumination Button P.C.B..
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10.8.Disassembly of Control P.C.B.
• Refer to “Disassembly of To p Cab in et”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of FL Display P.C.B.”.
Step 1 Remove the Control Knob.
Step 2 Remove 2 screws.
Step 3 Remove the Side Cover.
Step 4 Remove 4 screws.
Step 5 Detach 6P FFC at a connector (CN6111) on the Control
Jog LED P.C.B..
Step 6 Release catches in the sequences of 1 to 3.
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Step 7 Detach 12P Cable at a connector (CN6200) on the Control P.C.B..
Caution: During assembling, ensure that the Control P .C.B.
is properly located and fully catched onto the Front Panel
Unit.
10.9.Disassembly of Control Jog
LED P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of FL Display P.C.B.”.
• Refer to “Disassembly of Control P.C.B.”.
Step 1 Lift up to remove the Control Jog LED P.C.B..
Caution: During assembling, ensure that the Control Jog
LED P.C.B. is properly located & fully seated onto the Front
Panel Unit.
10.10. Disassembly of Volume P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of FL Display P.C.B.”.
• Refer to “Disassembly of Control P.C.B.”.
Step 1 Remove the Volume Knob.
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Step 2 Remove 2 screws.
Step 3 Remove the Side Cover.
Step 4 Remove 5 screws.
Step 5 Detach 6P FFC at a connector (CN6112) on the Volume
Jog LED P.C.B..
Step 6 Detach 4P Cable at a connector (CN5700) on the LED
P.C.B..
Step 7 Detach 2P Cable at a connector (CN6800) on the Illumination Button P.C.B..
Step 8 Detach 8P Cable at a connector (CN610 3) on the Mic
P.C.B..
Step 9 Release catches in the sequences of 1 to 4.
Caution: During assembling, ensure that the V olume P.C.B.
is properly located and fully catched onto the Front Panel
Unit.
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10.11. Disassembly of Volume Jog
10.12. Disassembly of Remote Sensor
LED P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of FL Display P.C.B.”.
• Refer to “Disassembly of Control P.C.B.”.
• Refer to “Disassembly of Volume P.C.B.”.
Step 1 Lift up to remove the Volume Jog LED P.C.B..
Caution: During assembling, ensure that the Volume Jog
LED P.C.B. is properly located & fully seated onto the Front
Panel Unit.
P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of FL Display P.C.B.”.
• Refer to “Disassembly of Control P.C.B.”.
• Refer to “Disassembly of Volume P.C.B.”.
Step 1 Remove the the Remote Sensor P.C.B..
Caution: During assembling, ensure that the Remote Sen-
sor P.C.B. is properly inserted & fully connected to the Volume P.C.B..
10.13. Disassembly of USB P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove 3 screws.
Step 2 Lift up to remove the USB P.C.B..
Caution: During assembling, ensure that the USB P.C.B. is
properly located & fully seated onto the Front Panel Unit.
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10.14. Disassembly of Mic P.C.B.
• Refer to “Disassembly of To p Cab in et”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove the Mic Knob.
Step 2 Detach 8P Cable at a connector (CN6103) on the Mic
P.C.B..
10.15. Disassembly of LED P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove 2 screws.
Step 2 Detach 4P Cable at a connector (CN5700) on LED
P.C.B..
Step 3 Remove 2 screws.
Step 4 Remove the Mic P.C.B..
Caution: During assembling, ensure that the Mic P.C.B. is
properly located & fully seated onto the Front Panel Unit.
Step 3 Release 2 catches.
Step 4 Remove the LED P.C.B..
Caution: During assembling, ensure that the LED P.C.B. is
properly located and fully catched onto Lighting House.
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10.16. Disassembly of CD Lid
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
Step 1 Remove the spring as arrow shown in order of
sequence (1) to (3).
Caution: During assembling, ensure that the spring is
assembly at correct position.
Step 2 Remove the CD Lid as arrow shown.
Step 3 Release the CD Lid from the guide.
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10.17. Disassembly of Rear Panel
• Refer to “Disassembly of To p Cab in et”.
Step 1 Remove 9 screws.
Step 2 Detach the Voltage Selector P.C.B. from Rear Panel.
Step 3 Release catches on the Fan Units.
Step 4 Remove the Fan Units.
Step 1 Detach 2P Wire at the connector (CN2007) on the Main
P.C.B..
Step 2 Detach 2P Wire at the connector (CN2009) on the Main
P.C.B..
Step 3 Detach 2P Wire at the connector (CN2006) on the Main
P.C.B..
Step 4 Detach 13P Cable at the connector (CN5802) on the
SMPS P.C.B..
Step 2 Detach 10P FFC at the connector (FP8252) on the Main
P.C.B..
Step 3 Detach 24P FFC at the connector (FP8202) on the Main
P.C.B..
Step 5 Remove 2 screws.
Step 6 Lift up to remove the Main P.C.B..
Caution: During assembling, ensure that the Main P.C.B. is
properly located & fully seated onto the Inner Chassis Unit.
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10.20. Disassembly of Digital Amplifier IC (IC2501/IC2502/IC2503/
IC2504)
• Refer to “Disassembly of Main P.C.B.”.
10.20.1. Disassembly of Digital Amplifier IC
(IC2501/IC2502/IC2503/IC2504)
Caution: Handle the Main P.C.B. with caution due to it’s
high temperature after prolonged use. Touching it may
lead to injuries.
Step 1 Place the Main P.C.B. on an insulated material.
Step 2 Remove 5 screws.
Step 4 Desolder the pins of the Digital Amplifier IC.
Step 5 Remove the Digital Amplifier IC.
10.20.2. Assembly of Digital Amplifier IC
(IC2501/IC2502/IC2503/IC2504)
Step 1 Fix the Digital Amplifier IC onto the Main P.C.B..
Step 2 Solder the pins of the Digital Amplifier IC.
Cautions: Ensure that the pins of the Digital Amp lifier IC is
positioned correctly on the Main P.C.B. before soldering.
Step 3 Lift up the Main P.C.B. as arrow shown.
Caution: Keep the Heatsink Spacers in safe place. Avoid
denting it, place it back during assembling.
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Step 3 Fix Heatsink spacers onto Main Heatsink..
Caotion: Ensure that the Heatsink Spacers are properly
located and seated flatly onto Main Heatsink.
Step 4 Apply grease to the Main Heatsink as indicate in the dia-
gram..
Caution: Ensure Grease thickness is about 0.2mm.
10.21. Disassembly of SMPS P.C.B.
and Voltage Selector P.C.B.
• Refer to “Disassembly of Top Cabinet”.
Step 1 Remove 2 screws.
Step 2 Detach 13P Cable at a connector (CN5802) on the
SMPS P.C.B..
Step 3 Detach 2P Wire at a connector (CN2006) on the Main
P.C.B..
Step 4 Remove 1 screw.
Step 5 Upset the Main P.C.B..
Step 6 Fix 5 screws.
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Step 5 Detach the Voltage Selector P.C.B. from the rear panel
as arrow shown.
Step 6 Remove 2 screws
Step 7 Remove the Inner Fan Unit.
Caution: Keep the Inner Fan Unit in safe place, place it
back during assembling.
Step 8 Remove the SMPS P.C.B..
Caution: During assembling, ensure that the SMPS P.C.B.
is properly located & fully seated onto the Inner Chassis
Unit.
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10.22. Replacement of Switching Regulator (Q5700)
• Refer to “Disassembly of SMPS P.C.B.”.
10.22.1. Disassembly of Switching Regula-
tor (Q5700)
Step 1 Desolder pins of the Switching Regulator (Q5700) on
the solder side of the SMPS P.C.B.
Step 2 Desolder pins of the Heatsink A.
Step 3 Remove the Heatsink A with the Switching Regulator
(Q5700).
Step 4 Remove 1 screw.
Step 5 Remove the Switching Regulator (Q5700) from the
Heatsink A.
Caution: Avoid touching the Heatsink A due to its high
temperature after prolong use. Touching it may lead to
injuries.
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10.22.2. Assembly of Switching Regulator
(Q5700)
Step 1 Apply grease to the Heatsink A.
Step 2 Screw the Switching Regulator (Q5700) to the Heatsink
A.
Caution: Ensure the Switching Regulator (Q5700) is tightly
screwed to the Heatsink A.
Step 3 Fix the Heatsink A with the Switching Regulator
(Q5700) on the SMPS P.C.B. as shown.
Caution 1: Ensure the Heatsink A with the Switching Regulator (Q5700) are properly inserted into the SMPS P.C.B..
Step 4 Solder pins of the Switching Regulator (Q5700) on the
solder side of the SMPS P.C.B..
Step 5 Solder pins of the Heatsink A on the solder side of the
SMPS P.C.B..
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10.23. Replacement of Diode (D5801)
• Refer to “Disassembly of SMPS P.C.B.”.
10.23.1. Disassembly of Diode (D5801)
Step 1 Desol der pi ns of the Diode (D5801) an d (D580 2) on the
solder side of the SMPS P.C.B..
Step 2 Desolder pins of the Heatsink B.
Step 3 Remove 1 screw at the Diode (D5801).
Step 4 Remove the Diode (D5801) from the SMPS P.C.B..
Caution: Avoid touching the Heatsink B due to its high
temperature after prolonged use. Touching it may lead to
injuries.
10.23.2. Assembly of Diode (D5801)
Step 1 Apply grease to the Heatsink B.
Step 2 Screw the Diode (D5801) to the Heatsink B.
Caution: Ensure the Diode (D5801) is tightly screwed to the
Heatsink B.
Step 3 Fix the Heatsink B with the Diode (D5801) on the SMPS
P.C.B..
Caution: Ensure pins of the Diode (D5801) are properly
inserted into the SMPS P.C.B..
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Step 4 Solder pins of the Diode (D5801 ) on the solder side of
the SMPS P.C.B..
Step 5 Solder pins of the Heatsink B.
10.24. Replacement of Diode (D5802)
• Refer to “Disassembly of SMPS P.C.B.”.
10.24.1. Disassembly of Diode
(D5802)
Step 1 Desolder pins of the Diode (D5802) on the solder side of
the SMPS P.C.B.
Step 2 Remove 1 screw at the Diode (D5802).
Step 3 Remove the Diode (D5802) from the SMPS P.C.B..
Caution: Avoid touching the Heatsink B due to its high
temperature after prolong use. Touching it may lead to
injuries.
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10.24.2. Assembly of Diode (D5802)
Step 1 Apply grease to the Heatsink B.
Step 2 Screw the Diode (D5802) to the Heatsink B.
Caution: Ensure the Diode (D5802) is tightly screwed to the
Heatsink B.
Step 4 Solder pins of the Diode (D5802) on the solder side of
SMPS P.C.B..
10.25. Disassembly of CD Interface
P.C.B.
• Refer to “Disassembly of Top Cabinet”.
• Refer to “Disassembly of Front Panel Unit”.
• Refer to “Disassembly of CD Mechanism Unit”.
Step 1 Remove 3 screws.
Step 2 Desolder pins of the motor (M7301).
Step 3 Desolder pins of the motor (M7302).
Step 4 Remove the CD Interface P.C.B..
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11 Service Position
Note: For description of the disassembly procedures, see
the Section 10.
11.1.Checking of FL Display P.C.B.,
Control P.C.B., Volume P.C.B.,
Mic P.C.B. and USB P.C.B.
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Remove FL Display P.C.B..
Step 4 Remove Illumination Button P.C.B..
Step 5 Remove Control P.C.B..
Step 6 Remove Volume P.C.B..
Step 7 Remove USB P .C.B..
Step 8 Remove Mic P.C.B..
Step 9 Attach 10P FFC at a connector (CN2002) on the Main
P.C.B..
Step 10 Attach 11P Cable at a connector (CN2001) on the
Main P.C.B..
Step 11 Attach 30P FFC at a connector (CN2004) on the Main
P.C.B..
Step 12 Attach 2P Cable at a connector (CN6800) on the Illumination Button P.C.B..
Step 13 Attach 8P Cable at a connector (CN6103) on the Mic
P.C.B..
Step 14 Attach 12P Cable at a connector (CN6200) on the
Control P.C.B..
Step 15 Attach 30P FFC at a connector (CN6002) on the FL
Display P.C.B..
Step 16 Attach 5P Wire at the connector (FP3001) on Main
P.C.B..
Step 17 FL Display P.C.B., Control P.C.B., Volume P.C.B., Mic
P.C.B. and USB P.C.B. can be checked as diagram shown.
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11.2.Checking of Main P.C.B. (Side
B)
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Remove Rear Panel.
Step 4 Remove CD Mechanism Unit.
Step 5 Remove Main P.C.B..
Step 6 Attach 24P FFC at the connector (FP8202) on the Main
P.C.B..
Step 7 Attach 10P FFC at the connector (FP8252) on the Main
P.C.B..
Step 8 Attach 13P Cable at the connector (CN5802) on the
SMPS P.C.B..
Step 9 Attach 2P Wire at the connector (CN2006) on the Main
P.C.B...
Step 10 Attach 2P Wire at the connector (CN2009) on the Main
P.C.B..
Step 11 Attach 2P Wire at the connector (CN2007) on the Main
P.C.B..
Step 12 Attach 10P FFC at a connector (CN2002) on the Main
P.C.B..
Step 13 Attach 11P Cable at a connector (CN2001) on the
Main P.C.B..
Step 14 Attach 30P FFC at a connector (CN2004) on the Main
P.C.B..
Step 15 Attach 5P Wire at the connector (FP3001) on Main
P.C.B..
Step 16 Side B Main P.C.B. can be checked as diagram shown.
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11.3.Checking of Main P.C.B. (Side
A)
Step 1 Remove Top Cabinet.
Step 2 Remove Front Panel Unit.
Step 3 Remove Rear Panel.
Step 4 Remove CD Mechanism Unit.
Step 5 Remove Main P.C.B..
Step 6 Attach 24P FFC at the connector (FP8202) on the Main
P.C.B..
Step 7 Attach 10P FFC at the connector (FP8252) on the Main
P.C.B..
Step 8 Attach 13P Cable at the connector (CN5802) on the
SMPS P.C.B..
Step 9 Attach 2P Wire at the connector (CN2006) on the Main
P.C.B...
Step 10 Attach 2P Wire at the connector (CN2009) on the Main
P.C.B..
Step 11 Attach 2P Wire at the connector (CN2007) on the Main
P.C.B..
Step 1 3 Attach 10P FFC at a connector (CN20 02) on the Main
P.C.B..
Step 14 Attach 11P Cable at a connector (CN2001) on the
Main P.C.B..
Step 1 5 Attach 30P FFC at a connector (CN20 04) on the Main
P.C.B..
Step 16 Attach 5P Wire at the connector (FP3001) on Main
P.C.B..
Step 17 Side A Main P.C.B. can be checked as diagram shown.
Step 12 Upset the Main P.C.B..
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11.4.Checking of SMPS P.C.B.
Step 1 Remove Top Cabinet.
Step 2 Remove SMPS P.C.B..
Step 3 Attach 13P Cable at the connector (CN5802) on the
SMPS P.C.B..
Step 4 Upset the SMPS P.C.B..
Step 5 Attach 2P Wire at the connector (CN2006) on the Main
P.C.B..
Step 6 SMPS P.C.B. can be checked as diagram shown.
• Important safety notice:
Components identified by mark have special characteris-
tics important for safety.
Furthermore, special parts which have purposes of fire-retardant (resistors), high quality sound (capacitors), low-noise
(resistors), etc are used.
When replacing any of components, be sure to use only
manufacturer’s specified parts shown in the parts list.
• In case of AC rated voltage Capacitors, the part no. and values will be indicated in the Schematic Diagram.
AC rated voltage capacitors:
C5700, C5701, C5702, C5703, C5704, C5705, C5707,
C5708
• Resistor
Unit of resistance is OHM [Ω] (K=1,000, M=1,000,000).
• Capacitor
Unit of capacitance is µF, unless otherwise noted. F=Farads,
pF=pico-Farad.
• Coil
Unit of inductance is H, unless otherwise noted.
•
*
REF IS FOR INDICATION ONL Y.
Play/Pause (/) switch.
Power () switch.
Forward (/) switch.
• Voltage and signal line
: +B signal line
: -B signal line
: CD Audio input signal line
: Mic/Tuner/Music Port/AUX input signal line
: Audio output signal line
: USB signal line
: AM signal line
: FM signal line
• Indication Voltage Values are in standard values for the unit measured by the DC electronic circuit tester (high-impe dance) with
the chassis taken as standard.
Therefore, there may exist some errors in voltage values, depending on the internal impedance of the DC circuit tester.
• Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point becau se it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
16.1.1.Main P.C.B. (1/7)
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16.1.2.Main P.C.B. (2/7)
.
REF NO.
MODE4142434445464748495051525354555657585960
POWER ON 3.33.33.3003.33.33.303.3003.33.2003.33.33.33.3