HT 306PD (sm-AFN75354522)
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Transcript of HT 306PD (sm-AFN75354522)
P/NO : AFN75354522 DECEMBER, 2011
DVD HOME THEATER SYSTEMSERVICE MANUALMODEL: HT306PD (HT306PD, SH36PD-F/S/C/W)
CAUTIONBEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”IN THIS MANUAL.
Website http://biz.lgservice.comInternal Use Only
MO
DE
L: H
T306P
D (H
T306P
D, S
H36P
D-F
/S/C
/W)
SE
RV
ICE
MA
NU
AL
1-1
CONTENTS
SECTION 1 ........SUMMARY
SECTION 2 ........ELECTRICAL
SECTION 3 ........CABINET & MAIN CHASSIS
SECTION 4 ........MECHANISM (DP-15T)
SECTION 5 ........REPLACEMENT PARTS LIST
1-2
SECTION 1
SUMMARY
CONTENTS
SERVICING PRECAUTIONS .......................................................................................................................... 1-3
ESD PRECAUTIONS ....................................................................................................................................... 1-5
SERVICE INFORMATION FOR EEPROM .................................................................................................... 1-6
HOW TO UPDATE DVD & AUDIO MICOM PROGRAMS ........................................................................... 1-7
SPECIFICATIONS ............................................................................................................................................ 1-8
1-3
SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP1. 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.
2. Repair notes1) 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.
5) Cleaning the lens surfaceIf 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 cot-ton swab should be used, taking care not to distort lens.
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.
Storage in conductive bag Drop impact
NEVER look directly at the laser beam, and don’t allow contact with fingers or other exposed skin.
Magnet
How to hold the pick-up
Conductive Sheet
Cotton swab
Pressure
Pressure
1-4
NOTES REGARDING COMPACT DISC PLAYER REPAIRS1. Preparations1) 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 magnet-ism is present, or where there is excessive dust.
2. Notes for repair1) Before replacing a component part, first disconnect the power supply lead wire from the unit2) 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 MΩ)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.
Resistor(1 MΩ) Conductive
Sheet
Resistor(1 MΩ)
Armband
1-5
ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such componentscommonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integratedcircuits and some field-effect transistors and semiconductor chip components. The following techniques shouldbe 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 offany electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear acommercially available discharging wrist strap device, which should be removed for potential shock reasonsprior 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 ESDdevices.
6. Do not remove a replacement ESD device from its protective package until immediately before you areready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together byconductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch theprotective 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 motionsuch 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 THESERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICELITERATURE.
1-6
SERVICE INFORMATION FOR EEPROM
POWER ON
DVD LOGO Status (NO Disk status)
Remote control Pause key-->1-->4-->7-->2 in order.
Press number 0~9, Press characterA~F (1~6 for a while)
Use arrow key ( ) to move to appropriate position and make changes
Press pause key once
Change will be applied when powerOFF-->ON.
NAME
OPT 1 OPT 2 OPT 3 OPT 4 OPT 5 OPT 6 OPT 7 OPT 8 OPT 9 OPT A
HEX
F100C5AD0009A0225008
DETECT NEW EEPROM(OPTION EDIT SCREEN)
1-7
HOW TO UPDATE DVD & AUDIO MICOM PROGRAMS
1. The Whole Sequence 1) DVD program download. 2) Power cord out −> in. 3) Audio micom program download. 4) Remote control Pause key ‘ ’ + ‘1472’ for input options. 5) Enter into the system information for check the version, options and check sum. 6) Power off −> on.
Attention: After DVD program download, never input options and check the version before power cord out.
2. How to enter into System Information 1) Enter into SETUP menu in NO Disc. 2) Put on cursor [Highlight] 16:9 wide option of TV aspect in SETUP menu. 3) Press follow key in continuous using remote control. 1 −> 3 −> 9 −> 7 −> 1 −> 3 −> 9 −> ENTER
3. How to update program 3-1. How to update MTK DVD program 1) Change the fi lename to download as “LG_(MODEL NAME).ROM”. [Both Upper and Lower case In fi lename is possible] Ex.) HT306: “LG_HT306.ROM” 2) Copy the fi le to the formatted USB, and burn it. 3) Move to the USB function, and insert the USB to the set. The upgrade information will be shown on the screen. 4) Remove the USB, press PLAY key of the remote control. 5) Remove and reconnect the power cable when it changes to logo screen from upgrade information. Then the upgrade process is completed.
3-2. How to update AUDIO MICOM program 1) Change the fi lename to download as “(MODEL NAME)_(Version).HEX”. Only upper cases are permitted. Ex.) HT306: "HT306_0809262.HEX" 2) Copy the fi le to the root folder of USB storage. 3) Put the USB into the SET, and move to the USB function. Then the upgradeprocess will be started with the upgrade information. 4) If the upgrade process is complete, the set will be power off automatically with “Complete” message.
1-8
SPECIFICATIONS
• GENERALPower requirements Refer to main label.Power consumption Refer to main label.Dimensions (W x H x D) Approx. 360 x 62.5 x 313 mm without footNet Weight (Approx.) 2.9 kgOperating temperature 5 °C to 35 °C (41 °F to 95 °F)Operating humidity 5 % to 90 %
• OUTPUTSVIDEO OUT 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1COMPONENT VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1 (Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 2HDMI OUT (video/audio) 19 pin (Type A, HDMI™ Connector)ANALOG AUDIO IN 2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R) x 1PORT. IN 0.5 Vrms (3.5 mm stereo jack)
• SYSTEMLaser Semiconductor laser, wavelength: 650 nmSignal system Standard NTSC/PAL color TV systemFrequency response 20 Hz to 20 kHz (48 kHz, 96 kHz, 192 kHz sampling)Signal-to-noise ratio More than 80 dBHarmonic distortion 0.05 % at 1 WDynamic range More than 95 dBBus Power Supply (USB) DC 5 V 500 mA
• AMPLIFIERStereo mode 45 W + 45 W (3 Ω at 1 kHz)Surround mode Front 45 W + 45 W (3 Ω at 1 kHz) Center 45 W (3 Ω at 1 kHz) Surround 45 W + 45 W (3 Ω at 1 kHz) Subwoofer 105 W (4 Ω at 60 Hz)
• TUNERFM Tuning Range 87.5 to 108.0 MHz or 87.50 to 108.00 MHzAM Tuning Range 522 to 1 620 kHz, 520 to 1 710 kHz or 522 to 1 710 kHz
• FRONT SPEAKER (LEFT/ RIGHT)Type 1 Way 1 SpeakerImpedance Rated 3 ΩInput Power 45 WMax. Input Power 90 WNet Dimensions (W x H x D) 260 x 1 020 x 68 mmNet Weight 2.64 kg
• REAR SPEAKER (LEFT/ RIGHT)Type 1 Way 1 SpeakerImpedance Rated 3 ΩInput Power 45 WMax. Input Power 90 WNet Dimensions (W x H x D) 103 x 111 x 94 mmNet Weight 0.33 kg
• CENTRE SPEAKERType 1 Way 1 SpeakerImpedance Rated 3 ΩInput Power 45 WMax. Input Power 90 WNet Dimensions (W x H x D) 200 x 103 x 88 mmNet Weight 0.43 kg
• SUBWOOFERType 1 Way 1 SpeakerImpedance Rated 4 ΩInput Power 105 WMax. Input Power 210 WNet Dimensions (W x H x D) 156 x 325 x 320 mmNet Weight 3.34 kg
2-1
SECTION 2
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE ............................................................................................... 2-21. POWER SUPPLY CIRCUIT .................................................................................................................... 2-22. FRONT CIRCUIT (1/2) ............................................................................................................................ 2-33. FRONT CIRCUIT (2/2) ............................................................................................................................ 2-44. SYSTEM OPERATION FLOW ................................................................................................................ 2-55. TEST & DEBUG FLOW .......................................................................................................................... 2-66. AMP PROTECTION .............................................................................................................................. 2-127. AUDIO μ-COM CIRCUIT(DVD & AMP) ................................................................................................ 2-13
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING .................................................. 2-141. SYSTEM 27 MHZ CLOCK, RESET, FLASH R/W SIGNAL .................................................................. 2-142. SDRAM CLOCK .................................................................................................................................... 2-153. TRAY OPEN/CLOSE SIGNAL .............................................................................................................. 2-164. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) .......................................................... 2-175. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION) .......................................................... 2-186. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION) ......................................... 2-187. DISC TYPE JUDGEMENT WAVEFORMS ........................................................................................... 2-198. FOCUS ON WAVEFORMS................................................................................................................... 2-219. SPINDLE CONTROL WAVEFORMS (NO DISC CONDITION) ............................................................ 2-22
10. TRACKING CONTROL RELATED SIGNAL (SYSTEM CHECKING) ................................................... 2-2311. MT1389MH VIDEO OUTPUT WAVEFORMS ....................................................................................... 2-2412. DVD & AMP WAVEFORMS MT1389MH .............................................................................................. 2-25
WIRING DIAGRAM ........................................................................................................................................ 2-27
BLOCK DIAGRAMS ...................................................................................................................................... 2-29
CIRCUIT DIAGRAMS .................................................................................................................................... 2-331. SMPS CIRCUIT DIAGRAM .................................................................................................................. 2-332. MAIN & AMP - 1 CIRCUIT DIAGRAM .................................................................................................. 2-353. MAIN & AMP - 2 CIRCUIT DIAGRAM .................................................................................................. 2-374. FRONT & POWER KEY CIRCUIT DIAGRAM ...................................................................................... 2-395. FRONT JACK CIRCUIT DIAGRAM ...................................................................................................... 2-41
CIRCUIT VOLTAGE CHART ........................................................................................................................ 2-43
PRINTED CIRCUIT BOARD DIAGRAMS .................................................................................................... 2-471. MAIN & AMP P.C. BOARD ................................................................................................................... 2-472. SMPS P.C. BOARD .............................................................................................................................. 2-513. FRONT P.C. BOARD ............................................................................................................................ 2-534. POWER KEY P.C. BOARD .................................................................................................................. 2-535. FRONT JACK P.C. BOARD .................................................................................................................. 2-53
2-2
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY CIRCUIT
YES
Check power supply circuit.
Check tracking servo circuit.
Check audio circuit.NO
NO
NOIs power on?
YES
Does it play?
YES
Does it outputaudio?
YES
YES
Turn power on.
INSERT POWER CORD.
OK
2-3
ELECTRICAL TROUBLESHOOTING GUIDE
1
2
2. FRONT CIRCUIT (1/2)
Reconnect it.NO
YES
YES
NO Check ifPN301 is ok?
Refer to SMPS part.NO
YES
Check if the frontpower is ok?
YES
Is the Digitron oncorrectly?
Check pattern and resolderingNO
NO
Check ifDIS301 is ok?
YES
Check if the remotecontrol is ok?
YES
Check if allbuttons are ok?
POWER ON.
Front B/D ok.
NO
2-4
ELECTRICAL TROUBLESHOOTING GUIDE
3. FRONT CIRCUIT (2/2)
1
Refer to power(SMPS).NO
Replace R346~R349, R352, R370.NO
Check if thepower part of the
front is ok?
YES
Check ifR346~R349, R352, R370
ok?
YES
Refer to MICOM circuit.
2
Refer to power(SMPS).NOCheck if the
power part of the front is ok?
YES
Refer to MICOM circuit.NOCheck if the remote
control waveform of PN301pin5 is ok?
YES
Check RM circuitNOCheck if RC301
voltage is ok(3.3 V)?
YES
Resolder or Replace RC301.
2-5
ELECTRICAL TROUBLESHOOTING GUIDE
4. SYSTEM OPERATION FLOW
YES
YES
YES
Tray closed?
1. Initializes SERVO, DSP & RISC registers.2. Write RISC code to SDRAM.3. Reset RISC.
Show LOGO.
Tray close to closed position.
SLED at innerside?
RecieveOPEN/ CLOSE
Key?
ReceiveCLOSE Key?
SLED moves to inner position.
1. Judge whether have disc and disc type.2. Jump to related disc reading procedure.
1. Execute Pressed Key & IR Key.2. System operation routine loop.
NO
NO
NO
NO
YES
1. Stop Playback & Open Tray.2. Display tray open message & LOGO.
POWER ON.
YES
YES
2-6
ELECTRICAL TROUBLESHOOTING GUIDE
5. TEST & DEBUG FLOW
Check the POWER PART.NO
Check the POWER PART.NO
YES
Check theAC voltage Power PCBA (110 V
or 220 V).
Check the regulators or diode.NO
1. Check 27 MHz system clock.2. Check system reset circuit.3. Check FLASH R/W enable signal PRD, RWR.4. Check FLASH Memory related circuit.
NO
Replace FLASH.
NO
YES
Are theDC Voltage outputs OK? (12 V, 3.3 V,
5 V, 7 V, 34 V).
YES
Are 3.3 V and 5 V DC outputs normal on main
PCBA?
YES
YES
UpdateFLASH successfully?
YES
Switch on the Power PCBA.
TEST.
A
2-7
ELECTRICAL TROUBLESHOOTING GUIDE
NOCheck connection lines between FLASH & MT1389MH and the FLASH access timewhether is suitable or not.
NO
YES
YES
YES
YES
Check AV cableconnection to TV set.
YES
YES
YES
FlashMemory operates
properly?
Check connection lines between SDRAM(IC503) & MT1389MH and the SDRAMis damaged.
NOSDRAMworks properly?
Check the related circuit ofMT1389MH IC501 pins138, 142, 144, 145.
NOMT1389MHVIDEO outputs
properly?
Show LOGO?
NO Check the load OPEN & CLOSE switch.
NO
Check AV cable connection between main PCBA andloader. (MECHA)
YES
YES
YES
NormalOPEN_SW,CLOSE_SW
signal?
Check the Tray control IO pins on MT1389MH.
NONormalTROPEN & TRCLOSE
signal?
Check the Tray control MOTOR & SERVO circuit IC400.
NONormalLOAD+ & LOAD-
signal?
Does Traymove inside when it
is not at closedposition?
Power On.
A
B
2-8
ELECTRICAL TROUBLESHOOTING GUIDE
NO Check the connection line ofM_STBY.
NO
YES
YES
YES
Check the cable connectionwith MECHA.
Do not put in discand close tray.
YES
YES
YES
MotorDriver M_STBY
pin is high?
Check the related circuit of SLD.
NOMotor
Driver M_STBYpin is High?
Check the amp circuit on motor driver.
NOSLED+ andSLED- output
properly?
Doesthe SLED move to innerside when it is at outer
position?
NO Check Focus connection onMT1389MH and motor driver.
NO
Check cable connection withpick-up head.
YES
YES
ProperFocus outputs
to motor driver?
Check the amp circuit on motor driver.
NOProper F+ & F-outputs?
Optical Lenshas movements forsearching Focus?
B
C
2-9
ELECTRICAL TROUBLESHOOTING GUIDE
NO
NO
Check the laser power circuit on MT1389MH andconnecting to power transis-tor.(Q403, Q405).
YES
YES
YES
YES
YES
YES
Check cable connectionbetween transistor output and
pick-up head.
Laser off.
Check the RF connectionbetween AM5890 and MT1389MH.
YES
YES
DVDLD orCDLD output
property?
Check the related circuit on laser power transistor.
NO
NOCollector
voltage of power transistoris OK?(Q403, Q405)
Laserturns on whenreading disc?
Put disc in?
Check the cable connectionbetween spindle and main
PCB.
YES
YES
Check the spindle control amp circuit of motor driver.
SPNPSPNN output
properly?
NO Check the SPINDLE relatedcircuit on MT1389MH.
ProperSPINDLE signal on
MT1389MH.Does spindle rotate?
NO Check the related circuit onMT1389MH RF signal.
NO
NO
NOProperRF signal onMT1389MH.
Disc ID is correct?
C
D
2-10
ELECTRICAL TROUBLESHOOTING GUIDE
Check connections betweenMT1389MH and pick-up head.
Check the related circuit onMT1389MH CD_DVDCT.
Check the related circuit onMT1389MH.
Check the TRACK connectionon MT1389MH and motor driver.
Check the tracking control ampcircuit on motor driver.
NO NO
YES
YES
YES
Check CD_DVDCT connectionbetween AM5890 and
MT1389MH.
Check cable connectionon pick-up head.
YES
YES
Propersignals on A, B, C,D of MT1389MH.
NOProperCD_DVDCT signal on
MT1389MH.
Focus on ok?
NODisc Playback?
NO NO
NO
NO
YES
ProperCD_DVDCT signal on
MT1389MH.
YES
ProperTRACK signal
on MT1389MH.
YES
T+ & T- outputproperly?
Track On OK?
D
YES
E
Check RF signal waveform.
2-11
ELECTRICAL TROUBLESHOOTING GUIDE
NO Check connection betweenIC602 BCK, LRCK, ADATA0.
YES
YES
Check Digital Amp circuit(IC701, IC702).
YES
Check the related circuit ofPWM.(Check Audio outpins28, 31, 33, 34, 37, 39, 42).
NO
NO
YES
PWM ICreceived correct data
stream?
NormalPWM IC out?(IC602).
Normal Audiooutput when disc
playback?
E
TEST END.
2-12
ELECTRICAL TROUBLESHOOTING GUIDE
6. AMP PROTECTION
OK.NO
YES
"PROTECTION"appears continuously on the FLD.
Replace IC101.NO
YES
Is the IC101 pin54"LOW" signal(0 V)?
Replace the Q701 and Q702.NO
YES
Is the Q701 andQ702 normal?
YES
YES
After unplug power cord, connect again.
YES
Power on.
"PROTECTION" appears on the FLD.
Replace TI AMP IC(IC701, IC702)
2-13
ELECTRICAL TROUBLESHOOTING GUIDE
7. AUDIO μ-COM CIRCUIT(DVD & AMP)
Check DVD Module.
Check SMPS.
OK
YES
Power On.
DoesCD/DVD appear at
FLD?
YES
NODoesit appear DVD Error
at FLD?
Does Aux,Scart, opt and FM 87.5
appear at FLD.
DoesReading appear
at FLD?
YES
Doesno Disc or Time
appear at FLD?
YES
Checkif DVD and audio
CD insert isOK.
Check Power.
YES
YES
Replace IC101.
YESNO
NO
NO
NO
Refer to SMPS.
Refer to oscillator circuit.
Check IC101 reset waveform.
NO
YES
Check 3.3 V line.
Check power sectioncircuit.
NO
NO
NO
NO
NO
Checkpower part of Main
B/D.
Checkoscillator of
X101.
Checkif IC101 pin5
is high.
YES
YES
YES
Checkif IC101 pin9, 36, 59 are
high(5 V).
Checkif IC101 pin49
is high.
YES
2-14
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING
1. SYSTEM 27 MHz CLOCK, RESET, FLASH R/W SIGNAL
2) MT1389MH reset is high active.
4
1) MT1389MH main clock is at 27 MHz(X500)
1
FIG 1-1
1
FIG 1-2
Power Cord in
2
3
4
2
3
P_CTL
RESET_IN
DVD_RST
2-15
3) Flash R/W enable signal during download(Downloading)
65
2. SDRAM CLOCK
7
1) MT1389MH main clock is at 27 MHz(X500)
FIG 1-3
5
6
SF_DI
SF_DO
DCLK = 93 MHz, Vp-p=2.2, Vmax=2.7 V
FIG 2-1
7
SDCLK
2-16
3. TRAY OPEN/CLOSE SIGNAL
1) Tray open/close waveform 2) Tray close waveform
3) Tray open waveform
8
9
11
10
FIG 3-3
8
9
10
11
OPENSW
CLOSESW
OPEN
CLOSE
FIG 3-1
8
9
10
11
OPENSW
CLOSESW
OPEN
CLOSE
FIG 3-2
8
9
10
11
OPENSW
CLOSESW
OPEN
CLOSE
2-17
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)
1312
1415
FIG 4-1
12
13
14
15
SLD
M-STBY
SL+
SL-
2-18
6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION)
5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION)
17 18
16
FIG 6-1
19
20
21
2119 20
FIG 5-1
16
17
18
FOD
F+
F-
MDI1
DVDLD
CDLD
2-19
7. DISC TYPE JUDGEMENT WAVEFORMS
FIG 7-1 (DVD)
22
23
24
F+
PU_DET
RF
FIG 7-2 (DVD)
22
23
24
F+
PU_DET
RF
22
24
23
23 : This signal can see using special debug program
2-20
FIG 7-3 (CD)
22
23
24
F+
PU_DET
RF
FIG 7-4 (CD)
22
23
24
F+
PU_DET
RF
23 : This signal can see using special debug program
22
24
23
2-21
8. FOCUS ON WAVEFORMS
26
27 28
25 : This signal can see using special debug program
FIG 8-1 (DVD)
25
26
27
28
PU_DET
FOD
F+
F-
FIG 8-2 (CD)
25
26
27
28
PU_DET
FOD
F+
F-
25
2-22
30
29
31
9. SPINDLE CONTROL WAVEFORMS (NO DISC CONDITION)
FIG 9-1
29
30
31
SPIND
SP-
SP+
2-23
10. TRACKING CONTROL RELATED SIGNAL (SYSTEM CHECKING)
32 : This signal can see using special debug program
FIG 10-1(DVD)
32
33
34
35
PU_DET
TRO
T-
T+
FIG 10-2(CD)
32
33
34
35
PU_DET
TRO
T-
T+
32
35
34
33
2-24
2) Y
11. MT1389MH VIDEO OUTPUT WAVEFORMS
1) Full colorbar signal(COMPOSITE)
FIG 11-1
36
FIG 11-2
37
36
37
CVBS
Y_G
2-25
1)
• FL+ : R640
2)
• RL+ : R641
3)
• WF- : R642or WF+ : R643
4)
• C+ : R644
5)
• FR+ : R645
6)
• RR+ : R646
12. DVD & AMP WAVEFORMS MT1389MH
38
40
42
39
41
43
43
42
41
40
39
38
2-26
MEMO
SMPS PCB
COMPONENTCVBSAUX
SCART SPK TERMINAL
23PI
N 9PIN 18PIN
16 PIN12 PIN
HDMI
MD
Tuner
CN851JK202 JK201 TU100 JK701
MAIN+AMP PCB
CN202
CN401
CN103
CN402
FRONT PCB
VFDVOLUME
PN301
FRONT JACK PCBMIC 1,2USBPORTABLE INPN202
PN901
CN901B’d to B’d
PWR KEY PCB CN301
PN302
WIRING DIAGRAM
2-27 2-28
MPEGMT1389MH
(176PIN)
SDRAMSPIFLASH EEPROM
MICOM
SCI, SD
A
DM
A[0..11],DB
[0..15]
DSC
K#,C
KE,C
S0#,RAS0#
SPI_CS,C
LK,D
I,KO
CE,CLK,DI,DO, MRST#
USBP, USBN
MICI/F
Aux-INADCCS5345
USB CON
Portable
S4308
Scart
MM16926dB up
Component
CompositeY/G,Pb/B,Pr/R
R,G,B
Y, Pb, Pr
CVBS
Analog MIC
CVBS
2CH A
2CH A
P/UPA,B,C,D,E,F,RF
CDLD, DVDLD
OPEN/CLOSE
MDICDDVDCT,VRCD,VRDVD
FOCUS/SLED
SPINDLE/TRACKINGM_STBY
MMOTORDRIVE
IC(AM5890)
MCLK, LRCK, BCK
AD_DATA
I/O Board
Front
CVBS
Karaoke model: 4MNon karaoke: 2M
CLK,DI,DO
TunerRDS_DATRDS_CLK
TUNER_DATTUNER_CLKST_IND
2CH A
2CH A
TX0, TX1, TX2, TXCEEPROM
BLOCK DIAGRAMS1. BLOCK DIAGRAM-1
2-29 2-30
DVD_CLK
MICOM
Tuner
MPEG
EEPROM
VFDDRIVER
VOL &KEYRMC
TAS5352
DVD_RST
DVD_CE
DVD_DO
DVD_DI
EEP_DAT
EEP_CLK
VFD_DO
VFD_CLKVFD_STB
RDS_DAT
RDS_CLK
TUNER_DAT
TUNER_CLK
ST_IND
TUNED
RCU_IN
VOL_DN
VOL_UP
KEY
PS9850B
CS5346
PWM_RSTPWMT_CLKPWM_DAT
RESET
DBGP0
DBGP1
DBGP2
D/L CNT
AMP_PDN
AMP_SD
AMP_PROTECT
MIC_DET
P_SENSE
ADC_RST
ADC_CLKADC_DAT
MIC
OP-AMP
2. BLOCK DIAGRAM-2
2-31 2-32
A
1
2
3
4
5
6
7
8
9
10
11
12
B C D E F G H I J K L M N O P Q R S T
SMPSEBY61269201, REV1.1
2010. 11. 25
CAUTION: Danger if fuse is incorrectly replaced.
Replace only with the type identical to fuse rating and(or) model name described in main label.
WarningParts that are shaded are critical withrespect to risk of fire or electrical shock.
CIRCUIT DIAGRAMS 1. SMPS CIRCUIT DIAGRAM
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BEMODIFIED OR ALTERED WITHOUT PERMISSIONFROM THE LG CORPORATION. ALL COMPONENTSSHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL
COMPONENTS ARE SHADED ON THE SCHEMATICFOR EASY IDENTIFICATION.THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED. THIS WAY,IMPLEMENTATION OF THE LATEST SAFETY ANDPERFORMANCE IMPROVEMENT CHANGES INTOTHE SET IS NOT DELAYED UNTIL THE NEW SERVICELITERATURE IS PRINTED.
NOTE :1. Shaded( ) parts are critical for safety.
Replace only with specified part number.2. Voltages are DC-measured with a digital voltmeter
during Play mode.
2-33 2-34
30
35172227
1828
13
29
34
33
31
12
16 26
11
1415
10
4232532
2119 20
7
36
37
8
9
1
24
65
A
1
2
3
4
5
6
7
8
9
10
11
12
B C D E F G H I J K L M N O P Q R
: WAVEFORM NUMBER
2. MAIN & AMP - 1 CIRCUIT DIAGRAM
2-35 2-36
S T
MAIN & AMPEBY61070501_(#1), REV2.14
2011. 03. 11
43
42
41
40
39
38
2
3
A
1
2
3
4
5
6
7
8
9
10
11
12
B C D E F G H I J K L M N O P Q R
: WAVEFORM NUMBER
3. MAIN & AMP - 2 CIRCUIT DIAGRAM
2-37 2-38
S T
MAIN & AMPEBY61070501_(#2), REV2.14
2011. 03. 11
A
1
2
3
4
5
6
7
8
9
10
11
12
B C D E F G H I J K L M N O P Q R S T
FRONTEBY61070601, REV2.1
2010. 11. 25
POWER KEYEBY61051201, REV2.4
2010. 11. 25
4. FRONT & POWER KEY CIRCUIT DIAGRAM
2-39 2-40
A
1
2
3
4
5
6
7
8
9
10
11
12
B C D E F G H I J K L M N O P Q R
5. FRONT JACK CIRCUIT DIAGRAM
2-41 2-42
S T
FRONT JACKEBY60687501, REV2.4
2011. 03. 11
Pin No. Specification EE Mode (V) Playback Mode (V)
IC101 MICOM (LC87F5M64A)
9(VDD2) 2.8~5.5 3.479 3.475
36(VDD3) 2.8~5.5 3.479 3.476
59(VDD1) 2.8~5.5 3.479 3.476
IC103 EEPROM (M24C16)
8(VCC) 1.8~5.5 3.48 3.475
IC104 DETECT
1(VCC) - 3.643 3.636
IC105 DETECT
1(VCC) - 3.476 3.469
IC201 ADC (CS5346)
5(VLC) 3.13~5.25 3.244 3.227
14(VA) 4.75~5.25 4.979 4.962
30(VA) 4.75~5.25 - -
36(VLS) 3.13~5.25 3.244 3.227
46(VD) 3.13~3.47 3.244 3.227
IC301 VFD (ET16315)
13(VDD) 4.5~5.5 3.491 3.485
43(VDD) 4.5~5.5 3.491 3.486
30(VEE) VDD-35 -20.75 -20.82
IC400 MOTOR IC (AM5890S
8(VCC1) 4.3~13.2 4.993 4.95
19(VCC2) 4.3~Vcc1 4.993 4.952
20(VCCD) 0~12 3.1 -
IC501 (MT1389FE/MH With HDMI)
1 (AVDD12_2) - 1.856 1.852
2 (AVDD33_1) - 3.165 3.147
12 (AVDD33_2) - 3.164 3.147
22 (VDD33_USB) - 3.165 3.147
25(VDD12_USB) - 1.855 1.844
38 (DVDD33) - 3.22 3.202
57 (DVDD33) - 3.22 3.202
67 (DVDD33) - 3.219 3.202
79 (DVDD12) - 1.843 1.824
92 (DVDD33) - 3.219 3.202
101 (DVDD33) - 3.22 3.202
109 (DVDD12) - 1.843 1.82
114 (AVDD33_12) - 3.075 3.06
119 (AVDD12_C) - 1.879 1.874
125 (AVDD12_D) - 1.879 1.874
140 (DACVDDB) - 0 0
142 (DACVDDA) - 0.312 0.572
151 (AADVDD) - 3.164 3.149
163(ADACVDD1) - 3.165 3.148
164(ADACVDD2) - 3.165 3.148
Pin No. Specification EE Mode (V) Playback Mode (V)
165 (AVDD12) - 1.856 1.849
IC502 Flash (W25Q168)
8(VDD) 2.7~3.6 3.221 3.199
IC503 SDRAM (HY57V64)
1(VDD) 3.0~3.6 3.223 3.209
3(VDDQ) 3.0~3.6 3.223 3.209
9(VDDQ) 3.0~3.6 3.223 3.208
14(VDD) 3.0~3.6 3.223 3.209
27(VDD) 3.0~3.6 3.223 3.209
43(VDDQ) 3.0~3.6 3.223 3.209
49(VDDQ) 3.0~3.6 3.223 3.209
IC602 PWM (PS9850)
16(VDD_IO) 2.97~3.63 3.264 3.255
21(VDD_CORE) 1.08~1.32 1.253 1.255
24(VDD_IO) 2.97~3.63 3.264 3.256
29(VDD_IO) 2.97~3.63 3.264 3.256
32(VDD_IO) 2.97~3.63 3.264 3.256
35(VDD_IO) 2.97~3.63 3.264 3.256
40(VDD_IO) 2.97~3.63 3.264 3.256
43(VDD_CORE) 1.08~1.32 1.253 1.252
48(VDD_IO) 2.97~3.63 3.264 3.256
57(VDD_CORE) 1.08~1.32 1.252 1.252
59(VDDA) 1.08~1.32 1.255 1.254
61(VDD_VIN2) 2.20~3.30 3.264 3.255
64(VDD_VIN1) 2.20~3.30 3.264 3.255
IC701 AMP (TAS5352)
1(GVDD_B) 10.8~13.2 12.22 12.1
21(VDD) 10.8~13.2 12.26 12.15
22(GVDD_C) 10.8~13.2 12.21 12.11
23(GVDD_D) 10.8~13.2 12.21 12.11
26(PVDD_D) 0~52.5 34.8 34.8
27(PVDD_D) 0~52.5 34.8 34.8
32(PVDD_C) 0~52.5 34.8 34.8
35(PVDD_B) 0~52.5 34.8 34.8
40(PVDD_A) 0~52.5 34.8 34.8
41(PVDD_A) 0~52.5 34.8 34.8
44(GVDD_A) 10.8~13.2 12.22 12.11
CIRCUIT VOLTAGE CHART1. IC'S VOLTAGE
2-43 2-44
Loca. NoValue
Capacitor(uF)
VoltaeSpec
EE Mode Playback Mode
(+) (-) Gap Margin (+) (-) Gap Margin
C106 220 10V 3.45V 0V 3.45V 6.55V 3.45V 0V 3.45V 6.55V
C114 100 10V 3.45V 0V 3.45V 6.55V 3.45V 0V 3.45V 6.55V
C122 220 10V 3.69V 0V 3.69V 6.31V 3.7V 0V 3.7V 6.3V
C124 47 16V 4.98V 0V 4.98V 11.02V 4.98V 0V 4.98V 11.02V
C127 47 16V 12.18V 0V 12.18V 3.82V 12.24V 0V 12.24V 3.76V
C133 47 16V 3.45V 0V 3.45V 12.55V 3.45V 0V 3.45V 12.55V
C145 10 16V 3.08V 0V 3.08V 12.92V 3.08V 0V 3.08V 12.92V
C146 100 16V 3.28V 0V 3.28V 12.72V 3.29V 0V 3.29V 12.71V
C228 1 50V 1.4V 0V 1.4V 48.6V - - 0V 50V
C229 100 16V 11.47V 0V 11.47V 4.53V 11.53V 0V 11.53V 4.47V
C230 22 50V 1.97V 0V 1.97V 48.03V 1.97 0 1.97V 48.03V
C231 100 16V 2V 1.88V 0.12V 15.88V 1.99V 1.87V 0.12V 15.88V
C241 22 50V 2.46V 0V 2.46V 47.54V 2.47V 0V 2.47V 47.53V
C243 47 16V 4.95V 0V 4.95V 11.05V 4.95V 0V 4.95V 11.05V
C264 10 16V 4.97V 0V 4.97V 11.03V 4.97V 0V 4.97V 11.03V
C265 10 16V 3.23V 0V 3.23V 12.77V 3.23V 0V 3.23V 12.77V
C267 47 16V 4.2V 0V 4.2V 11.8V 4.95V 0V 4.95V 11.05V
C268 10 16V 2.48V 0V 2.48V 13.52V 2.48V 0V 2.48V 13.52V
C274 470 10V 1.61V 0.8V 0.81V 9.19V 2.03V 1.15V 0.88V 9.12V
C275 470 10V 2.3V 1.37V 0.93V 9.07V 2.31V 1.33V 0.98V 9.02V
C276 470 10V 2.31V 1.4V 0.91V 9.09V 2.32V 1.36V 0.96V 9.04V
C282 470 10V 1.6V 0.91V 0.69V 9.31V 2.02V 1.27V 0.75V 9.25V
C2D1 220 6.3V 1.02V 0V 1.02V 5.28V 4.98V 0V 4.98V 1.32V
C2D3 4.7 50V 0.32V 0.18V 0.14V 49.86V 0.58V 0.31V 0.27V 49.73V
C2D4 4.7 50V 0.42V 0.25V 0.17V 49.83V 0.49V 0.25V 0.24V 49.76V
C309 220 6.3V 3.36V 0V 3.36V 2.94V 3.37V 0V 3.37V 2.93V
C332 47 35V 0V -15.55V 15.55V 19.45V 0V -15.43V 15.43V 19.57V
C333 47 35V 0V -17.91V 17.91V 17.09V 0V -17.81V 17.81V 17.19V
C3A1 47 16V 3.47V 0V 3.47V 12.53V 3.47V 0V 3.47V 12.53V
C3A2 47 35V 0V -20.52V 20.52V 14.48V 0V -20.4V 20.4V 14.6V
C417 47 16V 3.21V 3.14V 0.07V 15.93V 3.2V 2.29V 0.91V 15.09V
C418 47 16V 3.21V 3.14V 0.07V 15.93V 3.2V 3.02V 0.18V 15.82V
C420 47 16V 4.98V 0V 4.98V 11.02V 4.94V 0V 4.94V 11.06V
C421 47 16V 4.98V 0V 4.98V 11.02V 4.94V 0V 4.94V 11.06V
C422 47 16V 1.86V 0V 1.86V 14.14V 1.88V 0V 1.88V 14.12V
C423 100 10V 4.96V 0V 4.96V 5.04V 4.96V 0V 4.96V 5.04V
C427 47 16V 1.4V 0V 1.4V 14.6V 1.42V 0V 1.42V 14.58V
C553 10 16V 1.28V 1.02V 0.26V 15.74V 1.24 1.02 0.22V 15.78V
C554 10 16V 1.25V 1.06V 0.19V 15.81V 1.26 1.05 0.21V 15.79V
C555 100 10V 3.21V 0V 3.21V 6.79V 3.2V 0V 3.2V 6.8V
C556 100 10V 1.85V 0V 1.85V 8.15V 1.86V 0V 1.86V 8.14V
C557 100 16V 1.82V 0V 1.82V 14.18V 1.84V 0V 1.84V 14.16V
C558 100 10V 3.16V 0V 3.16V 6.84V 3.15V 0V 3.15V 6.85V
Loca. NoValue
Capacitor (uF)
VoltaeSpec
EE Mode Playback Mode
(+) (-) Gap Margin (+) (-) Gap Margin
C560 100 16V 1.53V 0V 1.53V 14.47V 1.48V 0V 1.48V 14.52V
C561 100 10V 1.34V 0V 1.34V 8.66V 1.33V 0V 1.33V 8.67V
C563 10 16V 3.22V 0V 3.22V 12.78V 1.28V 1.03V 0.25V 15.75V
C564 10 16V 3.22V 0V 3.22V 12.78V 3.21V 0V 3.21V 12.79V
C565 10 16V 3.21V 0V 3.21V 12.79V 3.2V 0V 3.2V 12.8V
C613 10 16V 1.24V 0V 1.24V 14.76V 1.25V 0V 1.25V 14.75V
C646 10 16V 0.16V 0V 0.16V 15.84V 0.14V 0V 0.14V 15.86V
C702 47 50V 12.17V 0V 12.17V 37.83V 12.22V 0V 12.22V 37.78V
C708 10 16V 12.11V 0V 12.11V 3.89V 12.17V 0V 12.17V 3.83V
C723 470 50V 37.2V 0V 37.2V 12.8V 37.35V 0V 37.35V 12.65V
C729 470 35V 37.2V 18.4V 18.8V 16.2V 37.35V 18.58V 18.77V 16.23V
C730 470 35V 18.4V 0V 18.4V 16.6V 18.58V 0V 18.58V 16.42V
C731 470 35V 18.4V 0V 18.4V 16.6V 18.58V 0V 18.58V 16.42V
C732 470 35V 37.2V 18.4V 18.8V 16.2V 37.35V 18.58V 18.77V 16.23V
C746 470 50V 37.2V 0V 37.2V 12.8V 37.35V 0V 37.35V 12.65V
C749 47 50V 12.17V 0V 12.17V 37.83V 12.22V 0V 12.22V 37.78V
C753 10 16V 12.11V 0V 12.11V 3.89V 12.17V 0V 12.17V 3.83V
C768 470 35V 37.2V 18.4V 18.8V 16.2V 37.35V 18.58V 18.77V 16.23V
C770 470 35V 18.5V 0V 18.5V 16.5V 18.58V 0V 18.58V 16.42V
C782 470 35V 37.2V 18.4V 18.8V 16.2V 37.35V 18.58V 18.77V 16.23V
C783 470 35V 18.4V 0V 18.4V 16.6V 18.58V 0V 18.58V 16.42V
C784 470 35V 19.8V 0V 19.8V 15.2V 18.58V 0V 18.58V 16.42V
C785 470 35V 37.2V 18.5V 18.7V 16.3V 37.36V 18.58V 18.78V 16.22V
C7A7 470 50V 37.2V 0V 37.2V 12.8V 37.35V 0V 37.35V 12.65V
C7A8 470 50V 37.2V 0V 37.2V 12.8V 37.35V 0V 37.35V 12.65V
2. CAPACITOR'S VOLTAGE
2-45 2-46
PRINTED CIRCUIT BOARD DIAGRAMS1. MAIN & AMP P.C. BOARD
84-274-2
(TOP VIEW)
05-294-2
MAIN & AMP P.C. BOARD
(BOTTOM VIEW)
NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock.
2. SMPS P.C. BOARD
(TOP VIEW) (BOTTOM VIEW)
25-215-2
4. POWER KEY P.C. BOARD (TOP VIEW)
5. FRONT JACK P.C. BOARD (TOP VIEW) (BOTTOM VIEW)
(BOTTOM VIEW)
3. FRONT P.C. BOARD (TOP VIEW)
(BOTTOM VIEW)
45-235-2
3-1
SECTION 3
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS ......................................................................................................................................... 3-31. CABINET AND MAIN FRAME SECTION ................................................................................................. 3-32. DECK MECHANISM SECTION (DP-15T) ................................................................................................ 3-53. SPEAKER SECTION ................................................................................................................................ 3-7 3-1. CENTER SPEAKER (SH36PD-C)....................................................................................................... 3-7 3-2. FRONT SPEAKER (SH36PD-F).......................................................................................................... 3-8
3-4. PASSIVE SUBWOOFER (SH36PD-W)...........................................................................................4. PACKING ACCESSORY SECTION ....................................................................................................... 3-11
3-3. REAR SPEAKER (SH36PD-S)............................................................................................................ 3-9..... 3-10
3-2
MEMO
A
B
D
DE
BAC
A50 463
A43
463
A47
463463
A46
465
470
300E
262
261
260 261
A44
462
250
FRONT JACK
SMPS
MAIN
A41
PN202
472
CABLE1
C
PN302
463
273
263
279
283
284
284
282
275
EXPLODED VIEWS1. CABINET AND MAIN FRAME SECTION
NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICELITERATURE.
3-3 3-4
012
010
012
037
012A
019442
442
A02 A01
A03
001
002
003439
018
013
017
014020
016
440
015
015B
015A
435
026
3-5 3-6
MEMO2. DECK MECHANISM SECTION (DP-15T)
A700
3-7
3. SPEAKER SECTION 3-1. CENTER SPEAKER (SH36PD-C)
3-8
3-2. FRONT SPEAKER (SH36PD-F)
A800
3-9
3-3. REAR SPEAKER (SH36PD-S)
855R Rear SPK Wire (7M)
A600
850A850B
852854
853
851
3-10
3-4. PASSIVE SUBWOOFER (SH36PD-W)
A900
950
951
952
3-11
4. PACKING ACCESSORY SECTION
804 Bag
803 Packing
803A Speaker packing
803C Speaker packing
803B Packing
803D Speaker packing
802 Box
803E Speaker packing
824 AM Antenna
801 Owner’s Manual
825 FM Antenna
900 Remote Control
808 Battery
811 Video Cable
Speaker cables
WIRE80 Front Left/Right 3 M
3-12
MEMO
4-1
[CONTENTS]
DECK MECHANISM PARTS LOCATIONS • Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 • Top View(without Tray Disc) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 • Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
DECK MECHANISM DISASSEMBLY 1. Main Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 1-1. Clamp Assembly Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
1-1-1. Plate Clamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31-1-2. Magnet Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31-1-3. Clamp Upper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2. Tray Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
3. Base Assembly Sled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 3-1. Gear Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 3-2. Gear Middle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 3-3. Gear Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4. Rubber Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 5. Frame Assembly Up/Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 6. Belt Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 7. Gear Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 8. Gear Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 9. Guide Up/Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 10. PWB Assembly Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 11. Base Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
EXPLODED VIEW 1. DECK MECHANISM EXPLODED VIEW (DP-15T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
SECTION 4. MECHANISM (DP-15T)
4-2
DECK MECHANISM PARTS LOCATIONS
NoteWhen reassembling, perform the procedure inreverse order.The “Bottom” on Disassembly column of aboveTable indicates the part should be disassembled at the Bottom side.
• Top View(without Tray Disc)
• Bottom View
• Top ViewStarting No.
1
1, 2
1, 2, 3
1, 2, 3, 4
1
1, 6
1, 2, 6
1, 2, 6, 8
1, 2, 6, 8, 9
1, 2, 7
1, 2, 7
1, 2
1, 2 ,13
1, 2, 13, 14
1, 2, 7, 12,
13, 14
1, 2, 13
1, 2, 7, 12, 13,
14, 15, 16, 17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Main Base
Clamp Assembly
Disc
Plate Clamp
Magnet Clamp
Clamp Upper
Tray Disc
Base Assembly Sled
Gear Feed
Gear Middle
Gear Rack
Rubber Rear
Frame Assembly
Up/Down
Belt Loading
Gear Pulley
Gear Loading
Guide Up/Down
PWB Assembly
Loading
Base Main
4 Screws,
1 Connector
1 Locking Tabs
1 Screw
1 Screw
1 Locking Tab
1 Locking Tab
1 Locking Tab
1 Hook
2 Screw
2 Locking Tabs
4-1
4-1
4-1
4-1
4-1
4-2
4-3
4-3
4-3
4-3
4-3
4-4
4-4
4-4
4-4
4-4
4-4
4-4
Bottom
Bottom
ProcedureParts Fixing Type
Fig-ure
Disassembly
4-3
DECK MECHANISM DISASSEMBLY
1. Main Base (Fig. 4-1) 1-1. Clamp Assembly Disc 1) Place the Clamp Assembly Disc as Fig. (A) 2) Lift up the Clamp Assembly Disc in direction of
arrow(A). 3) Separate the Clamp Assembly Disc from the
Holder Clamp. 1-1-1. Plate Clamp 1) Turn the Plate Clamp to counterclockwise
direction and then lift up the Plate Clamp. 1-1-2. Magnet Clamp 1-1-3. Clamp Upper
2. Tray Disc (Fig. 4-2) 1) Insert and push a Driver in the emergency eject
hole(A) at the right side, or put the Driver on theLever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejected about 15~20mm.
2) Pull the Tray Disc until it is separated from the Base Main completely.
MAIN BASE
TRAY DISC
BASE MAIN
LEVER
BASE MAIN
BOTTOM SIDE VIEW
PLATE CLAMP
MAGNET CLAMP
CLAMP UPPER
HOLDER
BASE MAIN
Fig. 4-2Fig. 4-1
(Fig. A)
DISC CLAMP ASSEMBLY
4-4
3. Base Assembly Sled (Fig. 4-3)1) Release 4 Screw(S2).2) Disconnect the FFC Connector(C1)
3-1. Gear Feed 3-2. Gear Middle 3-3. Gear Rack
4. Rubber Rear (Fig. 4-3)
BASE PU
RUBBER DAMPER
RUBBER DAMPER
RUBBER DAMPERDistinguish upper and lower sides(Assemble with care)
Distinguish upper and lower sides(Assemble with care)
RUBBER DAMPER
GEAR RACK
GENERAL PICK UP ASSEMBLY
SPINDLE MOTOR ASSEMBLY
Fig. 4-3
(S2)(S2)
4-5
5. Frame Assembly Up/Down (Fig. 4-4) Note Put the Base Main face down(Bottom Side) 1) Release the screw(S4) 2) Unlock the Locking Tab(L3) in direction of arrow
and then lift up the Frame Assembly Up/Down to separate it from the Base Main.
Note • When reassembling move the Guide Up/Down
in direction of arrow(C) until it is positioned as Fig.(C).
• When reassembling insert (A) portion of the Frame Assembly Up/Down in the (B) portion of the Guide Up/Down as Fig.(B)
6. Belt Loading(Fig. 4-4) Note Put the Base Main on original position(Top Side)7. Gear pulley (Fig. 4-4) 1) Unlock the Locking Tab(L4) in direction of arrow(B) and
then separate the Gear Pulley from the Base Main.
8. Gear Loading (Fig. 4-4)9. Guide Up/Down (Fig. 4-4) 1) Move the Guide Up/Down in direction of arrow(A) as
Fig.(A) 2) Push the Locking Tab(L5) down and then lift up the
Guide Up/Down to separate it from the Base Main. Note When reassembling place the Guide Up/Down as Fig.(C) and move it in direction arrow(B) until it is locked by the Locking Tab(L5). And confirm the Guide Up/Down as Fig.(A)10. PWB Assembly Loading (Fig. 4-4) Note Put the Base Main face down(Bottom Side) 1) Release 1 Screws(S5) 2) Unlock the Loading Motor (C2) from the Hook (H1) on
the Base Main. 3) Unlock 2 Locking Tabs(L6) and separate the PWB
Assembly Loading from the Base Main.11. Base Main(Fig. 4-4)
GEAR LOADING
GEAR PULLEY
BELT LOADING
PWB ASSEMBLY LOADING
BASE MAIN
GUIDE UP/DOWN
GUIDE UP/DOWN
GUIDE UP/DOWN
UP/DOWN FRAME ASSEMBLY
GUIDE UP/DOWN
BASE MAIN
(L6)
(L4)
(L6)
(H1)(C2)
(S5)(S4)
(S4)
(A)
(A)
(B)
(B)(C)
(L5)
FIG. (A)FIG. (B)
FIG. (C)
(A)
(B)
Fig. 4-4
SCREW INSERTION TORGUE CONTROL
(800gf DOWN)
4-6
012
010
012
037
012A
019442
442
A02 A01
A03
001
002
003439
018
013
017
014020
016
440
015
015B
015A
435
026
DECK MECHANISM EXPLODED VIEW (DP-15T)