SERVICE MANUAL
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
Internal Use Only
MINI HI-FI SYSTEM
APRIL, 2017P/NO : AFN77912846
MODEL: OJ98
MODEL: OJ98
CONTENTS
SECTION 1 ........ GENERAL
SECTION 2 ........ CABINET & MAIN CHASSIS
SECTION 3 ........ ELECTRICAL
SECTION 4 ........ MECHANISM (DM19D)
SECTION 5 ........ REPLACEMENT PARTS LIST
1-1
SECTION 1
SUMMARY
CONTENTS
SERVICING PRECAUTIONS ............................................................................................................................ 1-3
ESD PRECAUTIONS ......................................................................................................................................... 1-5
HIDDEN KEY MODE ......................................................................................................................................... 1-6
1. HIDDEN KEY MODE TABLE .................................................................................................................... 1-6
2. HIDDEN KEY MODE DESCRIPTION ....................................................................................................... 1-7
SERVICE INFORMATION FOR EEPROM ........................................................................................................ 1-9
PROGRAM DOWNLOAD GUIDE .................................................................................................................... 1-10
FOTA UPDATE STEP USING BT APP .......................................................................................................... 1-13
SPECIFICATIONS ........................................................................................................................................... 1-15
1-2
SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
Storage in conductive bag
Drop impact
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or
damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
NEVER look directly at the laser beam, and don’t allow
contact with fingers or other exposed skin.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort lens.
Pressure
Magnet
How to hold the pick-up
Cotton swab
Conductive Sheet
6) Never attempt to disassemble the pick-up.
Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab.
(Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much
of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
1-3
Pressure
NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components
are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components
can be damaged, and for that reason components should be handled with care.
2) The pick-up is composed of many optical components and other high-precision components. Care must be
taken, therefore, to avoid repair or storage where the temperature or humidity is high, where strong magnetism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing a component part, first disconnect the power supply lead wire from the unit
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is
because there is the possibility of damage by static electricity.)
4) To prevent AC leakage, the metal part of the soldering iron should be grounded.
5) Workers should be grounded by an armband (1 M)
6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent
static electricity changes in the clothing to escape from the armband.
7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.
Armband
Resistor
(1 M)
Resistor
(1 M)
Conductive
Sheet
1-4
ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated
circuits and some field-effect transistors and semiconductor chip components. The following techniques should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device, 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 ESD devices, place the assembly on a conductive surface
such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
generate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD
devices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are
ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
protective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER
SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD 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 sufficient to damage an ESD device).
CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS
INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE
SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE
LITERATURE.
1-5
HIDDEN KEY MODE
1. HIDDEN KEY MODE TABLE
HIDDEN MODE ENTRANCE KEY(Audio) EXIT KEY
Version Check
EEPROM INITIAL
Option EDIT
APD Test Display
Disc Lock On/Off
Power Disc Lock On/Off
Demo ALL Key Lock
BT Auto Power On/Off Front/Remote Control Key ‘Power’ for 5s
ChildSafe On/Off Volume 0(Min) + Front ‘OK’ for 3s Volume 0(Min) + Front ‘OK’ for 3s
Measure
Front ‘Stop’
+ Remote Control Key ‘Play’ for 5s
Front ‘Stop’
+ Remote Control Key ‘ ‘ for 5s
Front ‘Stop’
+ Remote Control Key ‘ ‘ for 5s
Front ‘Stop’
+ Remote Control Key ‘3’ for 5s
Front ‘Stop’ +
Remote Control Key ‘Stop’ for 5s
Front ‘Stop’ + Front ‘Open’ for 5s Front ‘Stop’ + Front ‘Open’ for 5s
Front ‘Stop’
+ Remote Control Key ‘9’ for 5s
Front ‘Stop’
+ Remote Control Key ‘1’ for 5s
/
Remote Control Key ‘Play’ for 1.5s
Auto exit
Front ‘Stop’ + Remote Control Key ‘ ‘
Auto exit
Front ‘Stop’
+ Remote Control Key ‘Stop’ for 5s
Front ‘Stop’
+ Remote Control Key ‘9’ for 5s
Front/Remote Control Key ‘Power’
SET Power Off
Remote Control Key ‘SOUND EFFECT’
/
1-6
2. HIDDEN KEY MODE DESCRIPTION
2-1. Version Check
- Function : Version Check.
- Entrance Key : Front ‘Stop’ + Remote Control Key ‘Play’ for 5s.
- Exit Key : Remote Control Key ‘Play’ for 1.5s.
- Operation explanation : Remote Control Key OR .
VFD Display (Example) Result
MCS Version
MICOM Version
OPTION Version
DEMO Version
DJ PRO Version
EQ Version
EQ Check sum Version
2-2. EEPROM Initial
- Function : Initialize data stored in EEPROM and BACKUP RAM data.
- Entrance Key : Front ‘Stop’ + Remote Control Key ‘ ‘ for 5s.
- Exit Key : Auto exit.
- Explanation : ‘E2P CLR’ is displayed on the VPD and turn off the power automatically.
2-3. OPTION EDIT (EEPROM)
- Refer to the page 00.
2-4. APD Test Display
- Function : Auto Power Down timer is displayed on VFD.
- Entrance Key : Front ‘Stop’ + Remote Control Key ‘3’ for 5s.
- Exit Key : Auto Exit.
- Explanation : display APD Timer HH=(hour) MM=(min), SS=(sec).
1-7
2-5. Disc Lock On/Off
- Function : Lock Open Key.
- Entrance Key : Front ‘Stop’ + Remote Control Key ‘Stop’ for 5s.
- Exit Key : Front ‘Stop’ + Remote Control Key ‘Stop’ for 5s.
- Operation Explain : Open Key Block ‘LOCKED’.
2-6. Power Disc Lock On/Off
- Function : Lock Power / Open / Front Volume Key.
- Entrance Key : Front ‘Stop’ + Front ‘Open’ for 5s.
- Exit Key : Front ‘Stop’ + Front ‘Open’ for 5s.
2-7. Demo All Key Lock
- Function : All key is blocked on Demo Mode.
- Entrance Key : Front ‘Stop’ + Remote Control Key ‘9’ for 5s.
- Exit Key : Front ‘Stop’ + Remote Control Key ‘9’ for 5s.
- Operation Key : In demo mode, all key blocks.
(only the volume key is effective when All Key Lock is enabled.)
To release Demo Mode, it is available after All Key Lock Off.
2-8. BT Auto Power On/Off
- Function : Ability to disable BT Auto Power On function by network shutdown regulation.
- Entrance Key : Front/Remote Control Key ‘Power’ for 5s.
- Exit Key : SET Power Off with Front / Remote Control Key ‘Power’.
2-9. ChildSafe On/Off
- Function : Power off Fade-in to previous volume.
- Entrance Key : Volume 0(Min) + Front ‘OK’ for 3s.
- Exit Key : Volume 0(Min) + Front ‘OK’ for 3s.
2-10. Measure
- Function : Change to EQ for Measure mode,
Down algorithm operation Disable,
Change to output setting value for measure mode.
- Entrance Key : Front ‘Stop’ + Remote Control Key ‘1’ for 5s
- Exit Key : Remote Control Key ‘SOUND EFFECT’
1-8
SERVICE INFORMATION FOR EEPROM
POWER ON
VFD “NO DISC” status
It is possible at any function.
(ex. It is possible at VFD “NO USB” status, too.)
This is an example.
Front ‘Stop’ + Remote control ‘ ’
push same timing during 5 s
FLD “OP00-…..”
Move to appropriate position
And make changes with remote control
“ , , REPEAT, ” key.
Press ‘PLAY ( )’ Key
/
VFD “WRITE OK”
DETECT NEW EEPROM
(OPTION EDIT SCREEN)
NAME
OPT0
OPT1
OPT2
OPT3
OPT4
OPT5
OPT6
OPT7
OPT8
OPT9
OPT10
OPT11
OPT12
OPT13
OPT14
HEX
01
31
2D
26
05
00
00
4F
4A
39
00
00
00
00
00
Front ‘Stop’ + Remote control ‘ ’
push same timing during 5 s
VFD “E2P CLR”
Completed
1-9
PROGRAM DOWNLOAD GUIDE
1. AUDIO PROGRAM
Download program file name must be MICOM_OJ98_YYMMDDX.HEX
If security program(Water Wall) is activated on PC, you must save the file to the USB storage device
and disable the security software, then download the file to your set.
Downloading file proceeds in the same way at USB1 function and USB2 function.
Caution:
When downloading the file, you should neither unplug the USB device, change to the other function,
nor power off the device. USB device must be unplugged when the downloading process is completed.
ON VFD DISPLAY SCREEN
NO USB
Insert USB device at USB function.
SEARCH
MICOM UP
FINISH
AUTO POWER OFF
1) (Fast) Format USB device.
2) Copy Firmware file to USB device.
1-10
2. CD PROGRAM
Download program file name must be HG790_OJ98_YYMMDDX.bin
If security program(Water Wall) is activated on PC, you must save the file to the USB storage device
and disable the security software, then download the file to your set.
Downloading file proceeds in the same way at USB1 function and USB2 function.
Caution:
When downloading the file, you should neither unplug the USB device, change to the other function,
nor power off the device. USB device must be unplugged when the downloading process is completed.
ON VFD DISPLAY SCREEN
NO USB
Insert USB device at USB function.
SEARCH
FIRMWARE
FINISH
AUTO POWER OFF
1) (Fast) Format USB device.
2) Copy Firmware file to USB device.
1-11
3. EQ & DEMO PROGRAM
Download program file name must be EQ_DEMO_PRG_OJ98_XXXX.BIN
If security program(Water Wall) is activated on PC, you must save the file to the USB storage device
and disable the security software, then download the file to your set.
Downloading file proceeds in the same way at USB1 function and USB2 function.
Caution:
When downloading the file, you should neither unplug the USB device, change to the other function,
nor power off the device. USB device must be unplugged when the downloading process is completed.
ON VFD DISPLAY SCREEN
NO USB
Insert USB device at USB function.
SEARCH
EQDEMOUP
FINISH
AUTO POWER OFF
1) (Fast) Format USB device.
2) Copy Firmware file to USB device.
1-12
FOTA UPDATE STEP USING BT APP
Step1 : App connecting
(Check FW version)
After connecting the BT App with SET,
the user could fi nd the “Device Version info” on
Setting tab.
Step2 : Device version info
When touch the “Device Version info” button,
user could fi nd the current and latest SET
version on pop-up menu.
Step3 : Select update button
When touch the “Update” button, user could
update the SET fi rmware using FOTA.
Step4 : Confi rm update
Select the OK button on the caution message.
1-13
Step5 : Download from CDN server
Step6 : Transfer FW
1st step is download from CDN server to
smart phone. The progress bar is displayed
on BT App.
After completed the download from server,
smart phone start to transfer the fi rmware to the
SET. The progress bar is displayed on BT App.
Step7 : FW Flash Writing Step8 : FOTA complete
After completed the download from the smart
phone, the SET overwrite the fi rmware to fl ash
memory.
When fi nishing the fl ash memory writing, pop-up
message about fi nish is displayed and the SET
auto power off.
1-14
SPECIFICATIONS
GENERAL
Power requirements Refer to the main label on the unit.
Power consumption Refer to the main label on the unit.
Networked standby : 0.5 W
(If all network ports are activated.)
Dimensions (W x H x D) Approx. 380 mm x 1095 mm x 375 mm
Operating temperature 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity 60 %
INPUTS / OUTPUTS
Analog audio in (AUX IN) 2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R)
Analog audio out (AUX OUT) 2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R)
Portable in (PORT. IN) 1.0 Vrms (3.5 mm stereo jack) x 1
Microphone (MIC 1/2) Sensitivity 20 mV (1 kHz), 6.3 mm jack x 2
TUNER
FM Tuning Range 87.5 to 108.0 MHz or 87.50 to 108.00 MHz
SYSTEM
Frequency Response 40 to 20,000 Hz
Signal-to-noise ratio More than 75 dB
Dynamic range More than 80 dB
Bus Power Supply (USB) 5 V 500 mA
AMPLIFIER (RMS Output power)
Total output 1,800 W RMS
HIGH 450W RMS × 2 (6Ω at 1 kHz, 15% THD)
LOW 450W RMS × 2 (6Ω at 200 Hz, 15% THD)
Design and specifications are subject to change without notice.
1-15
1-16
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS ........................................................................................................................................... 2-3
1. CABINET AND MAIN FRAME SECTION ................................................................................................. 2-3
2. DECK MECHANISM SECTION ................................................................................................................ 2-5
3. PACKING ACCESSORY SECTION ......................................................................................................... 2-7
DISASSEMBLY INSTRUCTIONS ..................................................................................................................... 2-8
2-1
2-2
RMC
BT
TOP
P
H
I
N
A51
475
476
475
270
269
J
K
521
475
521
521
272
272
272
B
N
CABLE3
MAIN
SMPS
464
254
A
C
B
D
G
F
E
M
G
L
D
O
E
C
A
F
M
L
J
I
H
P
K
O
CABLE2
255
464
256
258
259
464
256
475
A44
475
475
257
262
261
475
475
A46
475
265
476
476
264
A60
475
263
271
475
475
475
273
274
464
255
476
475
464
250
250
464
277
464
253
251
260L
260R
475
A41
CABLE4
CABLE5
475
A47
CABLE1
475
475
A50
EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION
2-42-3
NOTES) THE EXCLAMATION POINT WITHIN AN
EQUILATERAL TRIANGLE IS INTENDED
TO ALERT THE SERVICE PERSONNEL
TO THE PRESENCE OF IMPORTANT
SAFETY INFORMATION IN SERVICE
LITERATURE.
2. DECK MECHANISM SECTION (DM19D)
2-62-5
1439
A001
1005
1001
1049
1437
1437
1024
1024
1024
1024
1003
1011
1437
1004
1026
1016
1013
1015
1020
1012
A006
1018
1019
1030
A005
1045
1043
1439
1002
3. PACKING ACCESSORY SECTION
801 Owner’s manual
808 Batteries
826 Filter, Ferrite Core
900 Remote Control
803 Packing
825 FM Wire Antenna
300 Power Cord
802 Box
804 Bag
803 Packing
2-7
1) Remove the 6 screws.
DISASSEMBLY INSTRUCTIONS
Figure 1. Panel Side L/R disassembly - 1
2) Remove the 4 screws on the left and right sides, and pull Cover Side Ass’y L / R backward.
Figure 2. Panel Side L/R disassembly - 2
2-8
3) Remove the 3 screws.
Figure 3. Panel Top disassembly - 1
4) Remove the 2 screws on the left and right, and remove the top panel.
Figure 4. Panel Top disassembly - 2
2-9
5) Remove 7 screws, and remove Panel Rear.
6) Remove the 4 screws.
Figure 5. Panel Rear disassembly
Figure 6. Main Set disassembly - 1
2-10
7) Remove the 5 screws.
Figure 7. Main Set disassembly - 2
8) Remove the sparkling LED connector, speaker connector and power cables. And lift it upwards.
Figure 8. Main Set disassembly - 3
2-11
9) Complete removal of the Main Set.
Figure 9. After detaching the Main Set
2-12
10) Remove the 7 screws.
Figure 10. Frame Main disassembly (Top view)
11) Remove the 6 screws. Tweeter replacement is possible.
Figure 11. Holder Tweeter L/R disassembly (Back view)
2-13
12) Remove 8 screws. (When disassembling, be careful not to let the screws fall inside the panel.)
13) Remove the Deco Tweeter.
Figure 12. Deco Tweeter disassembly - 1
Figure 13. Deco Tweeter disassembly - 2
2-14
SECTION 3
ELECTRICAL
CONTENTS
ONE POINT REPAIR GUIDE ............................................................................................................................ 3-2
1. NO POWER ............................................................................................................................................ 3-2
2. NO AMP POWER ................................................................................................................................... 3-3
3. NO BOOTING WHEN POWER ON THE SET........................................................................................ 3-4
4. VFD IS NOT DISPLAYED WHEN POWER ON THE SET ..................................................................... 3-5
5. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT .......................................................................... 3-6
6. NO POWER ON (STANDBY LED IS BLINKING) ................................................................................... 3-7
7. SPEAKER NO AUDIO ............................................................................................................................ 3-8
8. NO BOOTING IN CD/USB FUNCTION .................................................................................................. 3-9
9. NO OPERATION OF MD ...................................................................................................................... 3-14
10. NO SOUND ........................................................................................................................................... 3-19
ELECTRICAL TROUBLESHOOTING GUIDE ................................................................................................. 3-25
1. POWER SUPPLY ON SMPS BOARD .................................................................................................. 3-25
2. SYSTEM PART ..................................................................................................................................... 3-28
3. NO AUDIO CHECK ............................................................................................................................... 3-29
4. NO LIGHTING (SPEAKER LED) .......................................................................................................... 3-34
5. NO LIGHTING (PARTY THRUSTER LED)........................................................................................... 3-35
WAVEFORMS OF MAJOR CHECK POINT .................................................................................................... 3-36
1. DSP (IC501) .......................................................................................................................................... 3-36
2. PWM (IC600) ........................................................................................................................................ 3-37
3. SERVO (IC401) ..................................................................................................................................... 3-38
4. MOTOR DRIVER (IC400) ..................................................................................................................... 3-39
5. ADC ....................................................................................................................................................... 3-40
6. USB ....................................................................................................................................................... 3-40
7. BLUETOOTH ........................................................................................................................................ 3-41
WIRING DIAGRAM .......................................................................................................................................... 3-43
BLOCK DIAGRAM .......................................................................................................................................... 3-45
CIRCUIT VOLTAGE CHART ........................................................................................................................... 3-47
1. IC VOLTAGE ......................................................................................................................................... 3-47
2. SMPS CAPACITOR & ZENER DIODE ................................................................................................. 3-47
3. MAIN CAPACITOR ............................................................................................................................... 3-48
4. CONNECTOR VOLTAGE ..................................................................................................................... 3-49
PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 3-53
1. SMPS P.C.BOARD DIAGRAM ............................................................................................................. 3-53
2. MAIN P.C.BOARD DIAGRAM .............................................................................................................. 3-57
3. TOP P.C.BOARD DIAGRAM ................................................................................................................ 3-61
4. JACK P.C.BOARD DIAGRAM .............................................................................................................. 3-65
3-1
ONE POINT REPAIR GUIDE
1. NO POWER
If the unit doesn’t work by no power problem, repair the set according to the following guide.
1-1. FUSE/ THERMISTOR/ BRIDGE DIODE
1-1-1. Solution
Please check and replace F901, TH900 ~ TH903, BD901 on SMPS board.
1-1-2. How to troubleshoot (Countermeasure)
1) Check if the fuse F901 is open or short-circuit.
2) Check if the NTC thermistor TH900 ~ TH903 is normal or open.
3) Check if the bridge diode BD901 is short-circuit by over current with a digital multi meter.
1-1-3. Service hint (Any picture / Remark)
< F901 >
If F901 is not short-circuit,
replace it with a same
specifi cations one.
< TH900 ~ TH903 >
If TH900~TH903 is open,
replace it with a new one.
3-2
< BD901 >
If BD901 is short-circuit,
replace it with a new one.
ONE POINT REPAIR GUIDE
NO POWER
If the unit doesn’t work by no ±PVDD problem, repair the set according to the following guide.
1-2. FUSE/ FET
1-2-1. Solution
Please check and replace F911, Q905~Q906 on SMPS board.
1-2-2. How to troubleshoot (Countermeasure)
1) Check if the fuse F911 is open or short-circuit.
2) Check the Drain-Source or Drain-Gate, Gate-Source Resistance of Q905~Q906 with a digital multimeter.
If it is short condition, it’s destroyed. Replace it with a new one.
(Please replace 2 FET at the same time although several FET is OK).
1-2-3. Service hint (Any picture / Remark)
< F911 >
If F911 is not short-circuit,
replace it with a same specifi cations one.
< Q905~Q906 >
If Q905~Q906 is short-circuit,
replace it with a new one.
3-3
ONE POINT REPAIR GUIDE
X500
(24 MHz)
X501
(32.768 kHz)
KEY3
(R590)
IC501
2. NO BOOTING WHEN POWER ON THE SET
The set doesn’t work when press the power button on the top board or the remote control.
2-1. IC501
2-1-1. Solution
Replace IC501 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Check the 5.1 VA (CN201) and 3.3 VA(IC202) in standby mode.
If there is no 5.1 VA, check the SMPS and if doesn’t appear 3.3 VA, check the IC202.
2) Check +12V, DVCC_5V and DVCC_3.3V when power on the set.
If the set doesn’t work regardless of what the KEY3 changes high to low while pressing the power button.
X500 and X501 work normally but, if you can not power on the set, replace the IC501 with a new one
on the main board.
2-1-3. Service hint (Any picture / Remark)
X500
(24 MHz)
X501
(32.768 kHz)
IC501
KEY3
(R590)
< MAIN board top view >
3-4
ONE POINT REPAIR GUIDE
CN804
VFD_CLK
VFD_STB
VFD_DO
3. VFD IS NOT DISPLAYED WHEN POWER ON THE SET
When power on the set, any icons or characters on VFD are not displayed.
3-1. VFD (VFD801)
3-1-1. Solution
Please check and replace DIG300 on FRONT board.
3-1-2. How to troubleshoot (Countermeasure)
1) Check if VFD_12V, DVCC_3.3V and DV_5V are output from MAIN to VFD via the TOP board.
2) Check if the IC501 outputs VFD_CLK, VFD_STB, and VFD_DO to the TOP board(CN804 pin18~20).
3) Check if the VFD grid current amplifier circuit on the TOP board.
Check the drive signal to the transistor’s(Q801, Q802) base.
If the control signals from VFD (SW) isn’t output, replace VFD with a new one.
VFD heat rays is RED : DVCC_5V(IC201 check) Voltage will be high than 5.5V
No VFD : VH(VFD801 pin27) will be not supply about 30V.
No VFD : VFD 12V will be not supply (Check Q205).
3-1-3. Service hint (Any picture / Remark)
CN804
VFD_CLK
VFD_STB
VFD_DO
< CN804 >
about
12Vp- p
Q801, Q802 Base
< Waveform of the grid current driver>
3-5
ONE POINT REPAIR GUIDE
IC204
IC205
IC202
IC501
4. NO BOOTING IN CD/USB FUNCTION
After you turn on power key and displayed message in the following order (HELLO VOL XX CD
or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally.
4-1. NO DVCC_3.3V, 1.2 VA
4-1-1. Solution
Please check and replace IC202, IC204, IC205 on MAIN board.
4-1-2. How to troubleshoot (Countermeasure)
1) Check Voltage of IC202 AND IC205 pin4 on MAIN board.
If IC202, IC205 pin4(about 5.1V) Input 5.1VA doesn’t come out, check 5.1 VA from SMPS board.
2) If IC202, IC205 pin4(about 5.1V) is normal, check the PWR_CTRL(IC205 pin4) is high (about 3.3 V).
If PWR_CTRL isn’t high, check pin D11 of IC501 & R559, R214, R233
3) If PWR_CTRL is high, check R559 and if there’s no defective component then check IC204 pin1 short
with GND.
4) If 3.3V(DVCC_3.3V) is normal, check 1.2 VA output(C221,C226, C287,C288) voltage of IC205.
If 1.2 VA of IC205 doesn’t come out, then replace IC205.
4-1-3. Service hint (Any picture / Remark)
IC202
IC205
IC204
IC501
< MAIN board top view >
3-6
ONE POINT REPAIR GUIDE
O
IC501
X500
NO BOOTING IN CD/USB FUNCTION
After you turn on power key and displayed message in the following order (HELLO VOL XX CD
or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally.
4-2. CRYSTAL (X500)
4-2-1. Solution
Replace X500 on MAIN board.
4-2-2. How to troubleshoot (Countermeasure)
1) If 3.3 V & 1.2 V is normal, check reset ‘High’ of IC501 pin T12 on MAIN board.
If CHIP_RESET isn’t high, check the IC505.
2) If CHIP_RESET is high, check the soldering status of 24 MHz crystal (X500).
3) If the crystal(X500) doesn’t oscillate, check R508, R5C5, C502, C503 around crystal(X500)
If there’s no defective component, then replace X500.
4-2-3. Service hint (Any picture / Remark)
XXXII
IC501
XXO
X500
X500
< Signal waveform >
< MAIN board top view >
3-7
ONE POINT REPAIR GUIDE
VCC
CLK
DO
CS#
IC503
NO BOOTING IN CD/USB FUNCTION
After you turn on power key and displayed message in the following order (HELLO VOL XX CD
or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally.
4-3. SERIAL FLASH (IC503)
4-3-1. Solution
Please check and replace IC503 on MAIN board.
4-3-2. How to troubleshoot (Countermeasure)
1) If the crystal(X500) does oscillate, check Serial Flash(IC503) on MAIN board.
Check pin8(VCC), pin6(SCLK), pin1(CS), pin2(SO), pin5(SI) of below waveform
2) If pin8, 6, 1, 2, 5 doesn’t come out, check damping resistor(R563, R564, R534, R535, R536) of IC503.
If damping resistor of IC503 is OK, then replace IC503. (it need to download program)
3) After change IC503, if It is still not below waveform, check IC501(DSP IC).
4-3-3. Service hint (Any picture / Remark)
V
IC503
< MAIN board bottom view >
< Signal waveform >
3-8
ONE POINT REPAIR GUIDE
V CC
Res et
address
da ta
/ CS
R AS
/ WE
CAS
IC502
NO BOOTING IN CD/USB FUNCTION
After you turn on power key and displayed message in the following order (HELLO VOL XX CD
or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally.
4-4. SDRAM (IC502)
4-4-1. Solution
Please check and replace IC502 on MAIN board.
4-4-2. How to troubleshoot (Countermeasure)
1) Check below waveform & soldering status of SDRAM (IC502) on MAIN board.
If pin17(#CAS), pin18(#RAS), pin19(#CS), pin38(CLK), pin29(address), pin2(DQ) doesn’t come out,
check damping resistor (R568, R570, R544, R547, RA501).
2) If resistor is OK, then replace IC502(SDRAM).
3) After change IC502, if It is still not below waveform, check IC501(DSP IC).
4-4-3. Service hint (Any picture / Remark)
V
IC502
< MAIN board bottom view >
/
< Signal waveform >
3-9
ONE POINT REPAIR GUIDE
IC501
NO BOOTING IN CD/USB FUNCTION
After you turn on power key and displayed message in the following order (HELLO VOL XX CD
or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally.
4-5. DSP (IC501)
4-5-1. Solution
Please check and replace IC501 on MAIN board.
4-5-2. How to troubleshoot (Countermeasure)
1) After check them by previous pages about No Booting, if the set is still no booting,
Check soldering status of IC501.
2) If below bootstrap waveform doesn’t come out, then replace IC501(DSP IC).
4-5-3. Service hint (Any picture / Remark)
R5B8
PGPB12
(Yellow)
IC501
< MAIN board top view >
R598
PGPE05
(Green)
R515
PAIN[4]
(Pink)
< Bootstrap waveform >
3-10
ONE POINT REPAIR GUIDE
SP-
pin8 to CN401
SP+
pin6 to CN401
CN401
IC400
5. NO OPERATION OF MD
When no sound output in the CD function, you can not listen to music reading data from a CD disc if
the servo motors in MD don’t work. This step is for checking the spindle motor among them.
5-1. SPINDLE MOTOR
5-1-1. Solution
Replace IC401 or IC400 on MAIN board.
5-1-2. How to troubleshoot (Countermeasure)
1) Check the SPDO signal from pin16 of IC401.
If no signal, check DVCC_3.3V(RF) and X400.
2) Check the SP- & SP+ from IC400 to CN401 for driving SPINDLE motor. It is about 3.6 Vp-p.
If no signal, check M_5V for IC400.
3) Check if the FFC cable is solidly connected between CN401 and MD.
4) Check the MD.
If the spindle motor is short-circuit or has any trouble, it can not rotate CD discs.
Please check the function after changing another MD.
5-1-3. Service hint (Any picture / Remark)
zwR
zw
T
< Waveform of SP- & SP+
for driving SPINDLE motor >
SP+
pin6 to CN401
SP-
pin8 to CN401
< MAIN board top view >
IC400
CN401
3-11
< MAIN board bottom view >
ONE POINT REPAIR GUIDE
SL-
pin9 to CN401
SL+
pin7 to CN401
CN401
IC400
NO OPERATION OF MD
When no sound output in the CD function, you can not listen to music reading data from a CD disc if
the servo motors in MD don’t work. This step is for checking the sled motor among them.
5-2. SLED MOTOR
5-2-1. Solution
Replace IC401 or IC400 on MAIN board.
5-2-2. How to troubleshoot (Countermeasure)
1) Check the SLDO signal from pin15 of IC401.
If no signal, check DVCC_3.3V(RF) and X400.
2) Check the SLED+ & SLED- from IC400 to CN401 for driving SPINDLE motor. It is about 2.9 Vp-p.
If no signal, check M_5V for IC400.
3) Check if the FFC cable is solidly connected between CN401 and MD.
4) Check the MD.
If the sled motor is sort-circuit or has any trouble, it can not move the pickup module.
Please check the function after changing another MD.
5-2-3. Service hint (Any picture / Remark)
zsR
zs
T
< Waveform of SLED- & SLED+
for driving SLED motor >
SL+
pin7 to CN401
SL-
pin9 to CN401
< MAIN board top view >
IC400
CN401
3-12
< MAIN board bottom view >
ONE POINT REPAIR GUIDE
LO+
pin4 to CN401
LO-
pin2 to CN401
CN401
IC400
NO OPERATION OF MD
When no sound output in the CD function, you can not listen to music reading data from a CD disc if
the servo motors in MD don’t work. This step is for checking the tray open/close motor among them.
5-3. TRAY OPEN/ CLOSE MOTOR
5-3-1. Solution
Replace IC401 or IC400 on MAIN board.
5-3-2. How to troubleshoot (Countermeasure)
1) Check MOT_OPEN & MOT_CLOSE signals from pin P5 & L4 of IC501 to IC400.
If no signal, check M_5V for IC400.
2) Check LOAD ± from IC400 to CN401 for driving the tray open/close motor. It is about 3.85 Vp-p.
If no signal, check DVCC_3.3V to IC401. If it has any trouble, replace it with a new one.
3) Check if the FFC cable is solidly connected between CN401 and MD.
4) Check the MD.
If the tray motor is short-circuit or has any trouble, it can not open or close the tray.
Please check the function after changing another MD.
5-3-3. Service hint (Any picture / Remark)
sv T
svROylkP
tv{ v w lu
tv{ js vzl
< Waveform for driving TRAY open/close motor >
LO-
pin2 to CN401
LO+
pin4 to CN401
< MAIN board top view >
IC400
CN401
3-13
< MAIN board bottom view >
ONE POINT REPAIR GUIDE
TR-
pin17 to CN400
TR+
pin16 to CN400
CN400
NO OPERATION OF MD
When no sound output in the CD function, you can not listen to music reading data from a CD disc if
the pickup module in MD doesn’t work. This step is for checking the laser tracking actuator.
5-4. LASER TRACKING ACTUATOR
5-4-1. Solution
Replace IC401 or IC400 on MAIN board.
5-4-2. How to troubleshoot (Countermeasure)
The tracking actuator makes the laser beam be positioned in the center of a track on CD disc.
1) Check the TRD signal from pin14 of IC401.
If no signal, check DVCC_3.3V(RF) and X400.
2) Check TR- & TR+ from IC400 to CN400 for driving the tracking actuator.
If no signal, check M_5V for IC400.
3) Check if the FFC cable is solidly connected between CN400 and MD.
4) Check the MD.
If the pickup module has any trouble, it can not move the laser beam on the left or right side.
Please check the function after changing another MD.
5-4-3. Service hint (Any picture / Remark)
{yTGju[W[
{y RG Gju[W[
< Waveform of T±
for driving TRACKING actuator >
TR+
pin16 to CN400
TR-
pin17 to CN400
CN400
< MAIN board top view >
3-14
ONE POINT REPAIR GUIDE
F-
pin18 to CN400
F+
pin15 to CN400
CN400
NO OPERATION OF MD
When no sound output in the CD function, you can not listen to music reading data from a CD disc if
the pickup module in MD doesn’t work. This step is for checking the laser focusing actuator.
5-5. LASER FOCUSING ACTUATOR
5-5-1. Solution
Replace IC401 or IC400 on MAIN board.
5-5-2. How to troubleshoot (Countermeasure)
The focusing actuator makes the laser beam keep a regular interval with the surface of a CD disc.
1) Check the FDO signal from pin21 of IC401.
If no signal, check 3.3 V(RF) and X400
2) Check F- & F+ from IC400 to CN400 for driving the focusing actuator.
If no signal, check M_5V for IC400.
3) Check if the FFC cable is solidly connected between CN400 and MD.
4) Check the MD.
If the pickup module has any trouble, it can not move the laser beam on the top or bottom side.
Please check the function after changing another MD.
5-5-3. Service hint (Any picture / Remark)
mRGGju[W[
mT Gju[W[
< Waveform of F±
for driving FOCUSING actuator >
F+
pin15 to CN400
F-
pin18 to CN400
CN400
< MAIN board top view >
3-15
ONE POINT REPAIR GUIDE
D+
D-
6. NO SOUND IN THE USB FUNCTION
There is no sound output in the USB function, repair the set according to the following
6-1. USB FUNCTION
6-1-1. Solution
Replace IC501, IC207 on MAIN board.
6-1-2. How to troubleshoot (Countermeasure)
1) Check USB_5V to TOP board.
If +5.1 VA to pin5 of IC207(Analog Switch ) doesn’t come out, check pin8 & 9 of CN201.
If +5.1 VA is normal & IC207 pin4 is high, IC207 pin1 doesn’t come out 5 V, then check the USB_5V
short with GND.
2) Check “Digital audio AMP block”.
6-1-3. Service hint (Any picture / Remark)
D
D-
guide.
< USB schematic >
USB D-/D+ (CN502 pin1, 2 & pin7, 8)
< Waveform of USB D± signal >
3-16
ONE POINT REPAIR GUIDE
IC700
IC702
IC701
IC703
7. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT
Audio signal output is small or not. when you power on the Middle Power One-Body System.
7-1. AMP IC (IC700 ~ IC703)
7-1-1. Solution
Replace IC700 ~ IC703 on MAIN board.
7-1-2. How to troubleshoot (Countermeasure)
1) Please check if this system is on bass blast mode.
FL/FR, SW1, SW2 make sound only on bass blast mode.
2) Check the IC700, IC701, IC702, IC703 on your eyes.
3) Check the audio signal output check (pin13 of IC700 ~ IC703).
First, check the PWM data input (pin3 of IC700 ~ IC703)
4) If the audio signal output has no output on the speaker, try to change IC which has no output.
5) Lastly, check speaker terminal (CN701).
7-1-3. Service hint (Any picture / Remark)
IC701
IC700
IC703
IC702
< MAIN board top view >
3-17
ONE POINT REPAIR GUIDE
AMP FETs
Q707
Q708
Q706
Q705
Q715
Q714
Q702
Q701
8. NO POWER ON (VFD DISPLAY D-PROTECTION AND POWER OFF)
It doesn’t turn on, and blinks standby LED(Red).
8-1. AMP FETs
8-1-1. Solution
Replace AMP FET on MAIN board.
8-1-2. How to troubleshoot (Countermeasure)
1) This symptom occurs, when DC protection is detected. Main reasons are like below.
- When some of AMP FETs dead.
8-1-3. Service hint (Any picture / Remark)
Q707
Q708
Q706
Q705
AMP FETs
AMP FET : IRF6775
< MAIN board top view >
Notice for FET service
- In case of RF6775, Metal case, FET Drain,
has electric potential. So be careful when you
deal with it.
Q715
Q714
Q702
Q701
* You can see FET after removing heatsink.
* Notice for Service
Before repair Main Assy, you need to discharge SMPS.
After then, open the connector.
You should try to change both of +/- FET and Driver IC
as a pair.
3-18
ONE POINT REPAIR GUIDE
CN702
pin1, 2 : +66 V
pin3, 4 : PGND
pin5, 6 : -66 V
pin5 of ICs
CSD
9. SPEAKER NO AUDIO
Speaker No Audio
9-1. AMP IC (IC700 ~ IC703)
9-1-1. Solution
Replace IC700 ~ IC703 on MAIN board.
9-1-2. How to troubleshoot (Countermeasure)
1) Check supply voltage of AMP(CN702) & PWM signal
Normal supply voltage and signal Check AMP IC.
Poor supply voltage Check SMPS Assy.
Poor signal Check PWM IC601.
2) Check CSD of FET driver IC (IRS2092).
CSD has about 5 V on normal state.
When AMP has problem, CSD is LOW state or keep change LOW to HIGH.
9-1-3. Service hint (Any picture / Remark)
CN702
pin1, 2 : +66 V
pin3, 4 : PGND
pin5, 6 : -66 V
< MAIN board top view >
pin5 of ICs
< MAIN board top view > < MAIN - AMP circuit >
CSD
3-19
ONE POINT REPAIR GUIDE
IC301
MCS_MCLK
MCS_LRCK
MCS_BCK
ADC_DATA_IN
MIC_DATA_IN
10. NO SOUND
There is no sound output in the AUX function, repair the set according to the following guide.
10-1. AUX FUNCTION
10-1-1. Solution
Replace IC301 on MAIN board.
10-1-2. How to troubleshoot (Countermeasure)
1) Check AUX_L/R signals to IC301(pin1, 2).
2) Check if MCS_BCK, MCS_LRCK & MCS_MCLK are entered from IC501 to IC301.
3) Check if ADC/MIC_DATA is entered from IC301 to IC501.
If no signal, check DVCC_3.3V & AVCC_3.3V(ADC) for IC301. If is NG, replace it a new one.
4) Check the following I2S signal flow from IC501 to IC601.
If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to
the IC is distorted or no signal, replace it with a new one.
5) Check if the digital audio AMP block is okay.
If AMP is damaged, replace it with a new one.
10-1-3. Service hint (Any picture / Remark)
MCS_MCLK
IC301
IC501
AUX_L/R
ADC/MIC_DATA
MCS_BCK
MCS_LRCK
MIX_DATA_OUT
AUX
IC601
PWM
IR AMP
MCS_MCLK
MCS_LRCK
MCS_BCK
ADC_DATA_IN
MIC_DATA_IN
IC301
< AUX function signal fl ow > < MAIN board bottom view >
3-20
IC301
PT_R to pin28
PT_L to pin29
ONE POINT REPAIR GUIDE
T
NO SOUND
There is no sound output in the PORT. IN function, repair the set according to the following guide.
10-2. PORT. IN FUNCTION
10-2-1. Solution
Replace IC301 on MAIN board.
10-2-2. How to troubleshoot (Countermeasure)
1) Check PT_L/R signal from TOP board to MAIN board.
2) Check if PT_LR is entered pin1 & 3 of CN505.
3) Check PT_L/R signals to IC301(pin27, 28).
4) Check if ADC_BCK, ADC_LRCK, & DAC_MCLK are entered from IC501 to IC301.
5) Check if ADC_DATA is entered from IC301 to IC501.
If no signal, check DVCC_3.3V & AVCC_3.3V(ADC) for IC301. If is NG, replace it a new one.
6) Check the following I2S signal flow from IC501 to IC601.
If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to
the IC is distorted or no signal, replace it with a new one.
7) Check if the digital audio AMP block is okay.
If AMP is damaged, replace it with a new one.
10-2-3. Service hint (Any picture / Remark)
T-
MCS_MCLK
IC201
ADC/MIC_DATA
IC501
POT_L/R
MCS_LRCK
MIX_DATA_OUT
MCS_BCK
JACK
BOARD
IC601
PWM
< PORT. IN function signal fl ow >
POT. IN
IR AMP
PT_R to pin28
PT_L to pin29
IC301
< MAIN board bottom view >
3-21
IC301
ONE POINT REPAIR GUIDE
MCS_MCLK
MCS_LRCK
MCS_BCK
ADC_DATA_IN
MIC_DATA_IN
TUNER_L to pin29
TUNER_R to pin30
NO SOUND
There is no sound output in the TUNER function, repair the set according to the following guide.
10-3. TUNER FUNCTION
10-3-1. Solution
Replace IC301, IC302 on MAIN board.
10-3-2. How to troubleshoot (Countermeasure)
1) Check if TUNER_LR is entered from pin13 &14 of IC302 to IC301(pin29, 30).
If no signals, check AVCC_3.3V for Tuner power.
Check if the Tuner control signals (CLK, DAT, CE, RST) are entered from IC501 to IC302.
If it doesn’t work, replace IC302 with a new one.
2) Check if ADC_BCK, ADC_LRCK & DAC_MCLK are entered from IC501 to IC301.
3) Check if ADC_DATA is entered from IC301 to IC501.
If no signal, check DVCC_3.3V & AVCC_3.3V(ADC) for IC301. If is NG, replace it a new one.
4) Check the following I2S audio signal flow from IC501 to IC601.
If there is any trouble, check the power for each IC.
The power is normal but, if the signal waveform to the IC is distorted or no signal, replace it with a new one.
5) Check if the digital audio AMP block is okay.
If AMP is damaged, replace it with a new one.
10-3-3. Service hint (Any picture / Remark)
T-
IC301
MCS_MCLK
IC501
< TUNER function signal fl ow >
TUNER_L/R
ADC/MIC_DATA
MCS_BCK
MCS_LRCK
MIX_DATA_OUT
IC302
TUNER
IC601
PWM
IR AMP
TUNER_L to pin29
TUNER_R to pin30
IC301
< MAIN board bottom view >
3-22
MCS_MCLK
MCS_LRCK
MCS_BCK
ADC_DATA_IN
MIC_DATA_IN
IC301
MIC_S2 to pin4
MIC_S1 to pin3
ONE POINT REPAIR GUIDE
T
NO SOUND
There is no sound output in the MIC IN function, repair the set according to the following guide.
10-4. MIC IN FUNCTION
10-4-1. Solution
Replace ICA301 on FRONT board, IC501 on MAIN board.
10-4-2. How to troubleshoot (Countermeasure)
1) Check MIC_S1 & MIC_S2 signal to pin6 & 8 of CN301.
If no signal, check the signals to pin6 & 8 of CNA301 on the JACK board.
Check if the signal is entered from pin5 & 6 of CNA301 to CN301.
2) Check if MIC_SIG is entered from JK302 to pin2, 13 of CNA301.
3) Check if the amplified signal comes out from pin3 & 12 of IC30A1.
If no signal output, check DVCC_3.3V for ICA301, replace ICA301 with a new one if it has a problem.
4) Check if MCS_BCK, MCS_MLCK & MCS_LRCK is entered from IC501 to IC301.
5) Check if ADC_DATA is entered from IC301 to IC501
If no signal, check DVCC_3.3V & AVCC_3.3V(ADC) for IC301.
If it is abnormal, change replace it a new one.
6) Check the following I2S signal flow from IC301 to IC501.
If there is any trouble, check the power for each IC.
If the signals are abnormal, replace it a new one.
7) Check if the digital audio AMP block is okay.
If AMP is damaged, replace it with a new one.
10-4-3. Service hint (Any picture / Remark)
MCS_MCLK
IC501
T-
IC301
MIC_S1,2
ADC/MIC_DATA
MCS_BCK
MCS_LRCK
MIX_DATA_OUT
ICA301
Preamp
IC601
PWM
Mic
1,2
IR AMP
MIC_S2 to pin4
MIC_S1 to pin3
IC301
< MIC IN function signal fl ow >
< MAIN board bottom view >
3-23
ONE POINT REPAIR GUIDE
CN504
IC601
MIX_DATA2_OUT
MIX_DATA1_OUT
MIX_DATA0_OUT
MCS_LRCK
MCS_BCK
BT_TX. pin 4
BT_RX. pin 6
BT_RTS. pin 7
BT_CTS. pin8
NO SOUND
There is no sound output in the Bluetooth function, repair the set according to the following guide.
10-5. BLUETOOTH FUNCTION
10-5-1. Solution
Replace IC501 on the MAIN board or B/T module on the Front Panel.
10-5-2. How to troubleshoot (Countermeasure)
1) Check BT_RX, BT_TX signal to pin4, 6 of CN504.
If no signal, check the signal to pin4, 6 and pin10(3.3 VA) of on the bluetooth module and cable
connection state.
If there are no signal out from module, replace new module.
2) Check if BT_RX/TX is entered from pin4, 6 of CN504 to pin K1, L1 to IC501 (DSP).
3) Check if MCS_BCK, MCS_LRCK & MIX_DATAN is entered from IC501 to IC601.
If no signal, check 1.2 VA for IC501.
If it is abnormal, change replace it a new one.
4) Check the following I2S signal flow from IC501 to IC601.
If there is any trouble, check the power for each IC.
If the signals are abnormal, replace it a new one.
5) Check if the digital audio AMP block is okay.
If AMP is damaged, replace it with a new one.
10-5-3. Service hint (Any picture / Remark)
B/T Module
BT_RX,
BT_TX
IC501
MCS_BCK
MCS_LRCK
MIX_DATA_OUT
IC601
PWM
IR AMP
BT_TX. pin 4
BT_RX. pin 6
BT_RTS. pin 7
BT_CTS. pin8
< MAIN board top view >
MIX_DATA2_OUT
MIX_DATA1_OUT
MIX_DATA0_OUT
MCS_LRCK
MCS_BCK
CN504
< Bluetooth function signal fl ow > < MAIN board bottom view >
3-24
IC601
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY ON SMPS BOARD
No output 5.1VA
Is the F901 normal?
YES
Is BD901 normal?
YES
Is the VCC
(11 V ~ 25 V) supplied to IC901
pin4?
YES
Power line of MAIN PCB is short.
NO
NO
NO
Replace F901 (same fuse).
Replace BD901.
Is D960/ D961 normal?
Check or replace D960/ D961.
No 12 V
Is the
VCC 14 VA supplied to IC951
pin1?
YES
Is there
‘H’ signal at IC951
pin4?
YES
Check and replace IC951. Or check
line of MAIN PCB is short or not.
NO
NO
Check or replace D963.
Check PWR_CTRL
From DSP(IC501_D11).
3-25
ELECTRICAL TROUBLESHOOTING GUIDE
POWER SUPPLY ON SMPS BOARD
No -5 V
VCC -7 VA supplied to IC953
Is the
pin2?
YES
Is there
‘H’ signal at Q953
Base?
YES
Check or replace Q953, Q957.
Or check line of MAIN PCB is
short or not.
No output AMP gate line
NO
NO
Is the D967 normal?
YES
Check or replace Q951.
Check VFD_PWR_CTRL
From DSP(IC501_C1).
NO
Check or replace D967.
Is the VCC
13 VA supplied to IC952
pin1 to pin3?
Check and replace IC952.
Or check line of MAIN PCB is
short or not.
NO
R9C7, R938 normal ?
Is the
YESYES
Check or replace D952, D959.
3-26
NO
Check or replace R9C7, R938.
ELECTRICAL TROUBLESHOOTING GUIDE
POWER SUPPLY ON SMPS BOARD
No AMP output
Is the
C904 Voltage
about 390 V?
YES
Is F911 normal?
NO
NO
YES
Is the
PFC_P-CTL OK?
YES
Is the
VCC 12 V supplied to
IC904 pin16?
YES
Check or replace IC904/
Q908/ Q910/ Q907/ Q909.
Is the
AMP_P-CTL OK?
YES
Is the
VCC 12 V supplied to
IC902 pin2?
NO
NO
NO
NO
Check PWR_CTRL
From DSP.
Replace D908/ Q955/ PC903.
Check AMP_PWR_CTRL
From DSP.
Replace D908/ Q956/ PC902.Replace F911.
NO
Is Q905~Q906 OK?
NO
Replace Q905~Q906.
YES
Check or replace IC902 and
Check Q905~Q906 gate(pin1)
Components (Resistors, Diodes).
3-27
Check or replace D954~D955.
Check line of MAIN PCB is
short or not.
ELECTRICAL TROUBLESHOOTING GUIDE
2. SYSTEM PART
Power on.
“HELLO”
Display on FLD
OK?
YES
When turn
the volume, count is
change?
YES
NO
NO
CN102
cable connection
OK?
YES
CN102
pin21, 22, 24 power
OK?
YES
CN102
pin 18, 19, 20 data signal
OK?
YES
Check
CN102 pin18, 19, 20 data
signal OK?
YES
NO
NO
NO
NO
NO
Check FFC cable.
Check SMPS board.
Check MAIN board.
Replace VFD801.F+/- & VH voltage OK?
Check FFC cable.
FRONT board OK.
Check MAIN board.
3-28
ELECTRICAL TROUBLESHOOTING GUIDE
3. NO AUDIO CHECK
CD FUNCTION
Can
disc insert?
YES
Disc reading OK?
YES
NO
NO
LOAD +, - OK?
YES
Is motor impedance
about 12 Ω?
OPU driving
(Focusing & Tracking) OK?
Check OPU.
(Pick-up module)
NO
NO
NO
NO
Is Motor_open/ close OK?
(IC400 pin6, 7)
YES
Check IC501.
Check loading motor.
Check IC400.
NO
Focusing/
Tracking/ Sled signal
OK?
YES
MON_MPD(CN400 pin22)
About 180 mV?
IC401 pin34, 35, 36
I2S output signal OK?
YES
IC501 pin N1, N2, N4
I2S input signal OK?
YES
A
NO
NO
IC401
RF & Servo signal
OK?
YES
Check IC501.
3-29
NO
Check FFC cable
to CN400, CN401.
ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO CHECK
USB play
When insert USB,
IC501 pin U7, U8, A7, A8
USB_D signal OK?
YES
A
AUX
NO
IC207
USB Power USB_5V
OK?
YES
NO
Check IC303 and
DRV_VBUS2.0 signal.
pin1, 2 AUX input signal
IC301
OK?
YES
IC301
pin15, 16, 17 I2S input signal
OK?
YES
IC301
pin18 ADC_data output signal
OK?
YES
A
NO
NO
NO
Check audio jack.
Check IC501.
Replace IC301.
3-30
ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO CHECK
POT. IN
pin27, 28 PT_L/R input signal
IC301
OK?
YES
IC301
pin15, 16, 17 I2S input signal
OK?
YES
IC301
pin18 ADC_data output signal
OK?
YES
A
TUNER
NO
NO
NO
Check TOP board.
Check IC501.
Replace IC301.
pin29, 30 TUNER_L/R input
IC301
signal OK?
YES
IC301
pin15, 16, 17 I2S input
signal OK?
YES
IC301 pin18
ADC_data output signal
OK?
YES
A
NO
NO
NO
IC302 pin5, 6, 7, 8 TUNER
control input signal OK?
Check control signal
from IC501 to IC301.
Replace IC301.
3-31
NO
Check control signal
from IC501 to IC302
ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO CHECK
A
YES
pinD1, D2, E1 I2S clock signal
IC501
OK?
YES
IC501
pinE2 I2S data signal
OK?
YES
IC601
PWM data output signal
OK?
YES
B
NO
NO
NO
Check IC501.
Check IC501.
Replace IC601.
3-32
ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO CHECK
B
Pin47, 48,
49, 50 of IC601,FL/FR±
signal OK?
YES
IC602
FL/FR audio signal
OK?
YES
Pin13 of
IC700, IC701 FL/FR audio
signal OK?
YES
NO
Check IC601.
NO
Check IC601, IC602.
NO
Check IC700, IC701.
NO
Check IC601.
NO
Check IC601, IC602.
NO
Check IC702, IC703.
Pin 41, 42,
45, 46 of IC601, SW1,2±
signal OK?
YES
IC603
SW1, 2 audio signal
OK?
YES
Pin13 of
IC702, IC703 SW1, 2 audio
signal OK?
YES
±66 V, -B+12V, ±5 V
power voltage OK?
YES
Q705,
Q706, Q707, Q708
OK?
YES
NO
Check SMPS.
NO
Check
Q705, Q706, Q707, Q708.
Check speaker cable connection.
OK
3-33
NO
Check SMPS.
NO
Check
Q714, Q715, Q701, Q702.
±66 V, -B+12V, ±5 V
power voltage OK?
YES
Q714,
Q715, Q701, Q702
OK?
YES
ELECTRICAL TROUBLESHOOTING GUIDE
4. NO LIGHTING (SPEAKER LED)
Power on
Push the “LIGHTING” button.
YES
Trun on the LED?
NO
IC206 LED_5V
OK?
YES
C
YES
Check Q461 ~ Q466,
Q473 ~ 478, LED_5V
YES
Check speaker LED assy.
NO
NO
Check IC206.
Replace check
Q461 ~ Q466, Q473 ~ 478.
No Lighting (Sparkle LED) No Lighting (Party Thruster LED)
C C
YES
Check Q467~Q472,
Q479~484, LED_5V
YES
Check Sparkle LED assy. Check Sparkle LED assy.
NO NO
Replace check
Q467~Q472, Q479~484
Check Q467~Q472,
Q479~484, LED_5V
YES
YES
3-34
Replace check
Q467~Q472, Q479~484
ELECTRICAL TROUBLESHOOTING GUIDE
5. NO LIGHTING (PARTY THRUSTER LED)
Power on
Push the “LIGHTING” button.
YES
Trun on the LED?
NO
Q204 F_LED_12V
OK?
YES
YES
Check Party Thruster LED.
NO
NO
Check Q201, Q204.
Replace Check Q101 ~ Q110.Check Q101 ~ Q110.
3-35
WAVEFORMS OF MAJOR CHECK POINT
XI
XO
XI
XO
1. DSP (IC501)
X
1
2
Fig 1-1. Crystal of RTC 32.768 MHz
(Both ends of R5D6) X501
3
4
X
Fig 1-2. Crystal of system 24 MHz
(Main DSP : R508, C5C5) X500
3
2
1
4
3-36
2. PWM (IC600)
XI
XO
X
5
6
Fig 2-1. Crystal 24.576 MHz
(IC601 pin4, 5) X601
7
8
9
Fig 2-2. DSP to PWM I2S
IC601 pin26~30
5
6
9
7
8
3-37
3. SERVO (IC401)
XI
XO
X
10
11
12
Fig 3-1. Crystal 16.9344 MHz
(X400)
1110
Fig 3-2. CD-16M
(IC401 pin31)
12
3-38
4. MOTOR DRIVER (IC400)
13
17
14
15
16
19
20
Fig 4-1.
LO- & LO+ / MOT_OPEN & MOT_CLOSE
for Driving TRAY Motor
(IC400 pin6, 7, 9, 10)
18
Fig 4-2. SL- & SL+ for Driving SPINDLE Motor
(IC400 pin11, 12)
Fig 4-3. SP- & SP+ for Driving SPINDLE Motor
(IC400 pin17, 18)
16
14
15
13
17
18
20
19
3-39
5. ADC 6. USB
21
22
23
Fig 5. ADC I2S
(IC301 pin15, 16, 17)
24
25
26
27
Fig 6. USB D+/ D-
(CN502 pin1, 2, 7, 8)
21
23
22
26
24
27
25
3-40
7. BLUETOOTH
BT_TX
BT_RX
BT_RST
BT_TX
BT_RX
BT_RST
BT_TX
BT_RX
BT_RST
28
29
30
B
Fig 7. BT_TX / BT_RX / BT_RST
(CN504 pin4, 6, 9)
28
29
30
3-41
3-42
3-43 3-44
MIC
2
MIC
1
PTB
29pin
8pin
10pin
23pin
USB
1
USB
2
TOP Control Board
Front Board
10pin
BT
module
Sparkle
LED
12pin
SMPS
Harness
FFC
MD
RMC
8pin
SPK
LED2
FAN
Tuner
29pin
10pin
23pin
MAIN Board
10pin
AUX IN/OUT
12pin
15pin
W
L/R,
F
L/R(8pin)
8pin
8pin
4pin
6pin
Heat Sink
6pin
Party Thruster
Lighting LED
SPK
LED1
15pin
4pin
4pin
4pin
4pin
Sparkle
LED
8pin
4pin
4pin
WIRING DIAGRAM
3-45 3-46
BLOCK DIAGRAM
1.12.0
Main DSP
(+3.3V_CD, VCC1.2)
DECK
MECHANISM
M
P/UP
TOP
BLOCK
Volume/
Key/switch
SDRAM
Flash
Motor Drive
USB1
USB2
SERVO
ADC
DRM_WEN/CAS/
RAS/SEL/CLK/CKE
Woofer Speaker
Lighting ×
× 2EA
ADC_DATA
MCS_BCK/LRCK/MCLK
M00_15
A00_16
SF_DI/DO
SF_CS/SCK
VFD_STB/CLK/DO/RST ,
MAIN VOL_A/B,
KEY 1/2,
Landing_Gear
OP_SW,CL_SW,UP_SW,DN_SW,D_SENSE
MOT_MUTE,CLOSE,OPEN
A,B,C,D,E,F,PD
LD
SPDO/SLDO
/FOD/TRD
LOAD±± ,SLED±± ,
SPIN±± ,TR±± ,F±±
D2S+/-
CD_RW/MCLK/LRCK/
BCK, CD_DAT
CD_RST
UART_RX/TX
For AUX
For MIC
Sub Micom
S/Flash
SF_DI/DO
SF2_CS/SCK
AUX IN
TUNER
(FM/)
PTB
MIC 1
MIC 2
AMP
AUX LINE OUT Block
PWM_L/R
D1+/-
FM
Sparkle
Lighting
Driver
IR
Receiver
MD Block
VFD
ANALOG INPUT Block
TOP Block
(± 66.5V)
DRIVEROP AMP FET
DRIVER
OP AMP
FET
PWM
AMP_OSC
FRONT
SW1
IR_IN_FL
FL_OUT_P/N
SW1_OUT_P/N
IR_IN_SW
PWM_LRCK/BCK/DAT
A
DSP_O_DATA
DRIVER
OP AMP
FET
IR_IN_SW
SW2_OUT_P/N
DRIVEROP AMP FET
AMP_OSC
FRONT
IR_IN_FL
FL_OUT_P/N
PWM + AMP Block
SW2
AMP_OSC
AMP_OSC
FRONT Block
Party
Thruster
& Lighting
EXP_DATA /
CLK/PT_LAT
BT_PCM_BUFFER
BT_TX_RX
For RCU
TOP BLOCK
CIRCUIT VOLTAGE CHART
1. IC VOLTAGE 3. MAIN CAPACITOR 2. SMPS CAPACITOR & ZENER DIODE
3-47 3-48
Location No. SPEC (V, mW) Spec
Measure
Voltage(V)
IC101 VDD : -0.5~+6.5V VDD : 3.1 ~ 3.3V VDD : 3.29V
IC201 VIN : 4.5V TO 24V
Vin : 14VA,
Vout : 5V
Vin : 13.9VA,
Vout : 5.05V
IC202 VIN : 2.7V TO 5.6V
Vin : 5.1VA,
Vout : 3.3VA
Vin : 5.18VA
Vout : 3.33V
IC203 VIN : 2.5V TO 5.5V
Vin : 5.1VA,
Vout : 5V
Vin : 5.18VA,
Vout : 5.01V
IC204 VIN : 2.5V TO 5.5V
Vin : 3.3VA,
Vout : 3.3V
Vin : 3.36VA
Vout : 3.31V
IC205 VIN : 2.7V TO 5.6V
Vin : 5.1VA,
Vout : 1.2VA
Vin : 5.18VA,
Vout : 1.26V
IC206 VIN : 4.5V TO 5V
Vin : 5.1V
Vout : 5.0V
Vin : 5.05V
Vout : 5.03V
IC207 VIN : 4.5V TO 5V
Vin : 5.1VA,
Vout : 5V
Vin : 5.17VA
Vout : 5.17V
IC301 VIN : -0.3V to 3.9V
AVDD : 3.3V
DVDD : 3.3V
AVDD : 3.27V
DVDD : 3.26V
IC303 VDD:3~3.6V VDD:3.3V VDD:3.28V
IC400
VCC1 : 4.3~13.2V
VCC2 : 4.3~VCC1
VCC1 : 5.0V
VCC2 : 5.0V
VCC1 : 5.05V
VCC2 : 5.05V
IC401
VDD1 : 2.7~3.6V (Analog)
VDD_CORE : 1.4~1.65V
VCC : 3.3V VCC : 3.29V
IC501 Digital Power 3.3V or 1.2V
VDD33 : 3.3VA
VDD12 : 1.2VA
VDD : 3.33VA
VDD : 1.22VA
IC502 VDD : 3.0~3.6V VCC : 3.3V VCC : 3.33V
IC503 VDD : 3.0~3.6V VCC : 3.3V VCC : 3.33V
IC504 VDD : 3.0~3.6V VCC : 3.3V VCC : 3.33V
IC505 VIN:1.1~5.5V Vin : 3.1~3.3VA Vin : 3.32VA
IC601 VCC : 2.97V TO 3.63V VDD : 3.3V VDD : 3.27V
IC602, IC603 VCC:-18V ~ 18V
+VA : 5.0V
-VA : -5.0V
+VA : 4.97V
-VA : -4.96V
IC700~IC703 VCC : 0V To 200V
VA : 5.0V
-VA :-5.0V
B+ : -54.0V
VA : 4.92V
-VA :-4.91V
B+ : -54.6V
ICA301 VDD:3~3.6V VDD : 3.3V VDD : 3.29V
Location No. Value
Description
(V, mA)
Spec
Measurement
Data
Voltage(V) Voltage(V)
C271 220uF 16V 130mA -40TO+85C USB_5V 4.95
C402 100uF 16V 80mA -40TO+85C DVCC_5V 5.03
C404 47uF 16V 140mA -55TO+105C DVCC_3.3V 3.27
C416 47uF 16V 140mA -55TO+105C VREF 1.63
C418 3.3uF 50V 14mA -40TO+105C VREF 1.63
C427 220uF 16V 130mA -40TO+85C M_5V 5.03
C605 220uF 6.3V 80mA -40TO+85C VDD_CORE 1.26
C657 220uF 6.3V 80mA -40TO+85C DVCC_3.3V 3.28
C701 2200uF 80V 2.51A -40TO+105C +B +66V 66.10
C702 1000uF 80V 2.3KA -55TO+105C +B +66V 66.10
C703 2200uF 80V 2.51A -40TO+105C -B -66V -66.10
C707 1000uF 80V 2.3KA -55TO+105C -B -66V -66.10
C768 100uF 16V 80mA -40TO+85C DC_DET 0.00
C801 100uF 16V 95mA -40TO+85C USB_5V 5.17
C802 47uF 16V 50mA -40TO+85C F- 3.07
C805 1uF 50V 10mA -40TO+85C VFD_12V 11.90
C806 1uF 50V 10mA -40TO+85C DVCC_3.3V 3.29
C813 100uF 16V 95mA -40TO+85C USB_5V 5.18
C821 47uF 16V 50mA -40TO+85C F+ 4.94
C831 1uF 50V 10mA -40TO+85C VH 29.81
C832 1uF 50V 10mA -40TO+85C VH 20.90
C834 1uF 50V 10mA -40TO+85C VH 16.80
CAPACITOR
Location No. Specifi cation Sales AREA
C903
450V/
330uF
W/W
C904
450V/
330uF
W/W
SMPS ZENER DIODE
Location No. Check
ZD902 6.2V
ZD903, ZD904 20V
ZD901 27V
ZD912, ZD932 20V
ZD913 10V
ZD914 33V
3-49 3-50
4. CONNECTOR VOLTAGE
Location No.
Connector Name
PIN NO. PIN MANE Voltage(V)
CN101 6630R-FB02D
1 RESET 3.32
2 VSS 0.00
3 DOWNLOAD 3.29
4 VDD 3.29
CN201
MAIN SMPS
1 GATE -54.50
2 B -66.50
3 GND 0.00
4 +12 12.05
5 +14VA 13.70
6 PWR_CTRL 3.28
7 VFD_PWR_CTRL 3.25
8 +5.1VA 5.19
9 +5.1VA(1.7A) 5.19
10 DGND 0.00
11 -5V(0.1A) -5.00
12 DGND 0.00
CN301
MAIN MIC
SMW200-H8G
1 RMC3.3VA 3.33
2 RMC 3.19
3 DGND 0.00
4 MIC_3.3V 3.28
5 MIC_DET 3.29
6 MIC_SE 0.00
7 MIC_GND 0.00
8 MIC_S2 0.00
CN400
MAIN MD
1 NC/FHM-VCC 5.05
2 RF 0.02
3 DVD_LD 0.02
4 MON(COM)/5V 0.02
5 DVD_VR 0.03
6 GND 0.00
7 VREF/VC 1.63
8 VCC 5.05
9 F 1.63
10 E 1.63
11 A 1.63
12 D 1.63
13 C 1.63
14 B 1.63
15 F(+) 2.47
16 T(+) 2.46
17 T(-) 2.46
18 F(-) 2.47
19 SW_PDIC 4.69
20 GND 0.00
21 CD_LD 0.02
22 MON_MPD 0.21
23 CD_VR 0.00
Location No.
Connector Name
PIN NO. PIN MANE Voltage(V)
CN601 NC_PWM JIG
1 GND 0.00
2 CLK_FROM_MCS 0.02
3 DATA_FROM_MCS 3.32
4 CLK_TO_PWM 3.32
5 DATA_TO_PWM 3.32
CN605
MAIN TOP
1 GND 0.00
2 F_LED_12V 12.04
3 MAIN_VOL_A 3.33
4 MAIN_VOL_B 3.32
5 FILE_S_A 3.29
6 FILE_S_B 3.29
7 SCRATCH_B 3.29
8 SCRATCH_A 3.29
9 MIC_VOL_B 3.29
10 MIC_VOL_A 3.29
11 KEY1 3.27
12 KEY2 3.32
13 KEY3 3.32
14 KEY4_MIN 3.33
15 INT_A 1.50
16 INT_B 1.50
17 GND 0.00
18 VFD_DO 3.33
19 VFD_STB 3.33
20 VFD_CLK 3.32
21 DV_3.3V 3.32
22 DV_5.0V 5.05
23 DV_5.0V 5.05
24 VF_12V 12.02
25 OUT1 0.01
26 OUT2 5.49
27 OUT3 0.01
28 OUT4 0.01
29 OUT5 0.01
CN701
MAIN SPK
1 SW2 0.00
2 PGND 0.00
3 SW1 0.00
4 PGND 0.00
5 FL 0.00
6 PGND 0.00
7 FR 0.00
8 PGND 0.00
Location No.
Connector Name
PIN NO. PIN MANE Voltage(V)
CN401
MAIN MD
1 OPEN_SW 3.29
2 LO- 0.00
3 CLOSE_SW 3.33
4 LO+ 0.01
5 GND 0.00
6 SP+ 2.47
7 SL+ 2.47
8 SP- 2.47
9 SL- 2.47
10 NC 0.00
CN501 Debug_MCS
1 VDD 3.33
2 NTRST 2.55
3 TDI 3.31
4 TMS 3.31
5 TCK 3.31
6 TDO 1.61
7 RESET 3.36
8 GND 0.00
9 RTCK 3.36
CN502
VOLUME(USB)
MAIN
1 D2- 0.01
2 D2+ 0.07
3 DGND 0.00
4 USB_5V 5.17
5 USB_5V 5.17
6 PTB_SENS 3.28
7 PTB_Lch 1.00
8 PTB_GND 0.03
9 PTB_Rch 1.20
10 DGND 0.03
11 D1- 0.03
12 D1+ 0.01
CN503
MICOM
DEBUG1
1 3.3VA 3.36
2 GND 0.00
3 NC 0.10
4 UART_RX 3.36
5 UART_TX 1.63
CN504
BT Moudle
MAIN
1 SDA 0.12
2 SCL 3.33
3 GND 0.00
4 TXD 3.33
5 GND 0.00
6 RXD 3.33
7 RTS 1.49
8 CTS 1.51
9 RESET 3.33
10 VDD 3.33
3-51 3-52
CONNECTOR VOLTAGE
Location No.
Connector Name
PIN NO. PIN MANE Voltage(V)
CN702
MAIN SMPS
1 +B 66.00
2 +B 66.00
3 PGND 0.00
4 PGND 0.00
5 -B -66.60
6 -B -66.60
CN461
MAIN
FAN CONTROL
1 VCC 11.98
2 GND 0.00
3 FG 0.32
4 PWM 0.74
CN463
MAIN
SPARKLING
LIGHTING
1.25MM
1 GND 0.00
2 SPKLED_UP_B 5.00
3 SPKLED_UP_G 5.00
4 SPKLED_UP_R 5.00
5 SPKLED_DN_B 5.00
6 SPKLED_DN_G 0.00
7 SPKLED_DN_R 0.00
8 GND 0.00
9 Sparkling6 0.00
10 Sparkling5 0.00
11 Sparkling4 0.00
12 Sparkling3 0.00
13 Sparkling2 0.00
14 Sparkling1 0.00
15 GND 0.00
CN801 USB1 (2.0)
1 USB 5V 5.14
2 D- 0.01
3 D+ 0.01
4 GND 0.00
5 GND 0.00
CN802 USB2 (1.1)
1 USB 5V 5.14
2 D- 0.01
3 D+ 0.01
4 GND 0.00
5 GND 0.00
Location No.
Connector Name
PIN NO. PIN MANE Voltage(V)
CN1001
MAIN
SPARKLE
LIGHTING
1 GND 0.00
2 SPKLED_UP_B 5.00
3 SPKLED_UP_G 5.00
4 SPKLED_UP_R 5.00
5 SPKLED_DN_B 5.00
6 SPKLED_DN_G 0.00
7 SPKLED_DN_R 0.00
8 GND 0.00
9 Sparkling6 0.00
10 Sparkling5 0.00
11 Sparkling4 0.00
12 Sparkling3 0.00
13 Sparkling2 0.00
14 Sparkling1 0.00
15 GND 0.00
CN1002
SPARKLE_L <->
SPARKLE_R
1 SPARKLE4 0.00
2 SPARKLE5 0.00
3 SPARKLE6 0.00
4 SPKLED_DN_B 0.00
5 SPKLED_DN_G 0.00
6 SPKLED_DN_R 0.00
7 DGND 0.00
8 DGND 0.00
CN1003
SPAKLING UP
SPK LED
1 SPKLED_B 5.00
2 SPKLED_G 0.00
3 SPKLED_R 0.00
4 GND 0.00
5
CNA301
MAIN FRONT
1 RMC3.3VA 3.33
2 RMC 3.19
3 DGND 0.00
4 MIC_3.3V 3.28
5 MIC_DET 3.29
6 MIC_SE 0.00
7 MIC_GND 0.00
8 MIC_S2 0.00
CNS501
SPAKLING D/N
SPK LED
1 SPKLED_B 5.00
2 SPKLED_G 0.00
3 SPKLED_R 0.00
4 GND 0.00
5
Location No.
Connector Name
PIN NO. PIN MANE Voltage(V)
CN803
FROM TOP
MAIN
1 D2- 0.01
2 D2+ 0.07
3 DGND 0.00
4 USB_5V 5.14
5 USB_5V 5.14
6 PTB_SENS 3.28
7 PTB_Lch 1.00
8 PTB_GND 0.03
9 PTB_Rch 1.20
10 DGND 0.03
11 D1- 0.03
12 D1+ 0.01
CN804
MAIN FRONT
1 GND 0.00
2 F_LED_12V 12.04
3 MAIN_VOL_A 3.33
4 MAIN_VOL_B 3.32
5 FILE_S_A 3.29
6 FILE_S_B 3.29
7 SCRATCH_B 3.29
8 SCRATCH_A 3.29
9 MIC_VOL_B 3.29
10 MIC_VOL_A 3.29
11 KEY1 3.27
12 KEY2 3.32
13 KEY3 3.32
14 KEY4_MIN 3.33
15 INT_A 1.50
16 INT_B 1.50
17 GND 0.00
18 VFD_DO 3.33
19 VFD_STB 3.33
20 VFD_CLK 3.32
21 DV_3.3V 3.32
22 DV_5.0V 5.05
23 DV_5.0V 5.05
24 VF_12V 12.02
25 OUT1 0.01
26 OUT2 5.49
27 OUT3 0.01
28 OUT4 0.01
29 OUT5 0.01
3-53 3-54
PRINTED CIRCUIT BOARD DIAGRAMS
1. SMPS P.C.BOARD DIAGRAM
(TOP VIEW)
3-55 3-56
SMPS P.C.BOARD DIAGRAM
(BOTTOM VIEW)
NOTE) Warning
Parts that are critical with respect to risk
of fire or electrical shock.
3-57 3-58
2. MAIN P.C.BOARD DIAGRAM
(TOP VIEW)
3-59 3-60
MAIN P.C.BOARD DIAGRAM
(BOTTOM VIEW)
3-61 3-62
3. TOP P.C.BOARD DIAGRAM
(TOP VIEW)
3-63 3-64
TOP P.C.BOARD DIAGRAM
(BOTTOM VIEW)
3-65 3-66
4. JACK P.C.BOARD DIAGRAM
(TOP VIEW)
(BOTTOM VIEW)
SECTION 4
MECHANISM (DM19D)
CONTENTS
DECK MECHANISM DISASSEMBLY
1. Cover Top ............................................................................................................................................... 4-2
2. Clamp Assembly ..................................................................................................................................... 4-2
2-1. Plate ................................................................................................................................................. 4-2
2-2. Magnet ............................................................................................................................................. 4-2
2-3. Clamp ............................................................................................................................................... 4-2
3. Tray Disc ................................................................................................................................................. 4-3
4. Pick Up Assembly ................................................................................................................................... 4-4
5. Base Up/Down ........................................................................................................................................ 4-4
6. Belt Loading ............................................................................................................................................ 4-5
7. Gear Pulley ............................................................................................................................................. 4-5
8. Gear Loading .......................................................................................................................................... 4-5
9. Guide ....................................................................................................................................................... 4-5
10. Deck PCB Assembly ............................................................................................................................... 4-5
11. Motor Assembly ...................................................................................................................................... 4-5
12. FFC Cable ............................................................................................................................................... 4-5
DECK MECHANISM EXPLODED VIEW (DM19D) ........................................................................................... 4-6
4-1
DECK MECHANISM DISASSEMBLY
(S1)
1
Cover Top
2
Clamp Assembly
< Figure A > < Figure B >
1
Plate
Magnet
Clamp
Clamp
Assembly
2
1. Cover Top
1) Remove the 2 screws (S1).
2) Remove the Cover Top.
2. Clamp Assembly
1) Place the Clamp Assembly as Figure B.
2) Bending the Cover Top in direction of
arrow (2) as Figure B.
3) Separate the Clamp Assembly from the
Cover Top.
2-1. Plate
1) Turn the Plate to a counterclockwise direction
and then lift up the Plate.
2) Remove the Plate.
2-2. Magnet
Remove the Magnet.
2-3. Clamp
Remove the Clamp.
4-2
DECK MECHANISM DISASSEMBLY
Emergency eject hole
Tray Disc
2
1
< Bottom side view >
Tray Disc
< Figure C >
(H1)
MD Sub
Assembly
1 1
22
3
Tray Disc
< Figure D >
3) Grasp the both sides of the Tray Disc and lift
it up as Figure D, and then pull the Tray Disc
until it is separated from the MD Sub Assembly
completely.
3. Tray Disc
1)
Insert and push a flat-head screwdriver in the
Emergency eject hole (H1) at the right side, so
that the Tray Disc is ejected about 15 ~ 20 mm.
2) Pull the Tray Disc until it is locked.
Guide
Tray Disc
< Figure E >
Note
• When reassembling place the Guide as Figure E.
4-3
DECK MECHANISM DISASSEMBLY
B
L
K
RED
B
RN
ORN
R
ED
B
K
Gasket Tape
Rubber
Damper
5
4
1
< Bottom side view >
FFC Cable
(S2)
2
Deck PCB
Assembly
3
Pick Up
Assembly
Base Up/Down
(L2)
Base Main
(D)
(B)
3
1
2
(H2)
Figure G-3
(A)
Figure G-2Figure G-1
(C)
Guide
(B)
Base
Up/Down
< Figure F >
4. Pick Up Assembly
1) Detach the Gasket Tape.
2) Disconnect the wires (BLK, RED, BRN, ORN)
from the Deck PCB Assembly by desoldering.
3) Remove the 4 screws (S2).
4) Disconnect the FFC Cable from the Pick Up
Assembly.
5) Remove the 4 Rubber Dampers.
< Figure G >
5. Base Up/Down
Unlock the Locking Tab (L2) in direction of arrow
and then lift up the Base Up/Down to separate it
from the Base Main.
Note
• When reassembling move the Guide in direction
of arrow (A) until it is positioned as Figure G-1.
• When reassembling insert the (B) portion of the
Base Up/Down in the (C) portion of the Guide as
Figure G-2.
• When reassembling insert the (D) portion of the
Base Up/Down in the Hole (H2) of the Base Main
as Figure G-3.
4-4
DECK MECHANISM DISASSEMBLY
B
L
K
RED
B
RN
ORN
R
ED
B
K
Gear Loading
Gear Pulley
(L3)
< Bottom side view >
Belt Loading
Base Main
(A)
Figure H-1
Guide
(B)
Base Main
(L4)
< Bottom side view >
6. Belt Loading
Remove the Belt Loading.
7. Gear Pulley
Unlock the Locking Tab (L3) in direction of arrow
and then separate the Gear Pulley from the Base
Main.
8. Gear Loading
Remove the Gear Loading.
9. Guide
1) Move the Guide in direction of arrow (A) as
Figure H-1.
2) Separate the Guide from the Base Main.
Motor
Assembly
(S3)
< Figure H >
10. Deck PCB Assembly
11. Motor Assembly
12. FFC Cable
Deck PCB
< Bottom side view >
Deck PCB
Assembly
Assembly
1) Disconnect the wires (RED, BK) form the
Deck PCB Assembly by desoldering.
2) Remove the 1 screw (S3).
3) Separate the Deck PCB Assembly from the
Base Main.
Unlock the Locking Tab (L4) in direction of
arrow and then separate the Motor Assembly
from the Base Main.
Remove the FFC Cable.
4-5
DECK MECHANISM EXPLODED VIEW (DM19D)
1439
A001
1002
1013
1026
1016
1015
1012
1003
1024
1437
1049
1020
1005
1004
1024
1001
1030
1024
1437
1024
1437
1011
A006
1019
1018
1439
1043
1045
A005
4-6
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