LG DP391B User manual
PORTABLE DVD
SERVICE MANUAL
MODEL: DP391B/DP392G
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL: DP391B/DP392G
SERVICE MANUAL
P/NO : AFN56903624MARCH, 2008
Website http://biz.lgservice.com
Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
CONTENTS
SECTION 1.........SUMMARY
SECTION 2.........EXPLODED VIEWS
SECTION 3.........ELECTRICAL
SECTION 4.........REPLACEMENT PARTS LIST
SECTION 1
SUMMARY
CONTENTS
1-2 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS .............................1-3
SERVICING PRECAUTIONS....................................................................................................................1-4
• GENERAL SERVICING PRECAUTIONS
• INSULATION CHECKING PRODEDURE
• ELECTROSTATICALLY SENSITIVE (ES) DEVICES
UPGRADING FIRMWARE .........................................................................................................................1-5
SPECIFICATIONS ........................................................................................................................................1-7
1-3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-video service
technicians.
When servicing this product, under no circumstances should the original design be
modified or altered without permission from LG Corporation. All components should be
replaced only with types identical to those in the original circuit and their physical
location, wiring and lead dress must conform to original layout upon completion of
repairs.
Special components are also used to prevent x-radiation, shock and fire hazard.
These components are indicated by the letter “x” included in their component
designators and are required to maintain safe performance. No deviations are allowed
without prior approval by LG Corporation.
Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into the set
are not delayed until the new service literature is printed.
CAUTION
: Do not attempt to modify this product in any way. Never perform
customized installations without manufacturer’s approval. Unauthorized modifications
will not only void the warranty, but may lead to property damage or user injury.
Service work should be performed only after you are thoroughly familiar with these
safety checks and servicing guidelines.
GRAPHIC SYMBOLS
The exclamation point within an equilateral triangle is intended to alert
the service personnel to important safety information in the service
literature.
The lightning flash with arrowhead symbol within an equilateral triangle
is intended to alert the service personnel to the presence of noninsulated
“dangerous voltage” that may be of sufficient magnitude to constitute a
risk of electric shock.
The pictorial representation of a fuse and its rating within an equilateral
triangle is intended to convey to the service personnel the following fuse
replacement caution notice:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF
FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND RATING
AS MARKED NEAR EACH FUSE.
SERVICE INFORMATION
While servicing, use an isolation transformer for protection from AC line shock. After the
original service problem has been corrected, make a check of the following:
FIRE AND SHOCK HAZARD
1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items trans-ported to and from the
repair shop.
2. Verify that all protective devices such as insulators, barriers, covers, shields, strain
reliefs, power supply cords, and other hardware have been reinstalled per the
original design. Be sure that the safety purpose of the polarized line plug has not
been defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder splashes,
or sharp solder points. Be certain to remove all loose foreign particles.
4. Check for physical evidence of damage or deterioration to parts and components,
for frayed leads or damaged insulation (including the AC cord), and replace if
necessary.
5. No lead or component should touch a high current device or a resistor rated at 1 watt
or more. Lead tension around protruding metal surfaces must be avoided.
6. After reassembly of the set, always perform an AC leakage test on all exposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals, handle
and screws) to be sure that set is safe to operate without danger of electrical shock.
DO NOT USE A LINE ISOLATION TRANSFORMER DURING THIS TEST. Use an
AC voltmeter having 5000 ohms per volt or more sensitivity in the following manner:
Connect a 1500 ohm, 10 watt resistor, paralleled by a .15 mfd 150V AC type
capacitor between a known good earth ground water pipe, conduit, etc.) and the
exposed metallic parts, one at a time. Measure the AC voltage across the
combination of 1500 ohm resistor and .15 mfd capacitor. Reverse the AC plug by
using a non-polarized adaptor and repeat AC voltage measurements for each
exposed metallic part. Voltage measured must not exceed 0.75 volts RMS. This
corresponds to 0.5 milliamp AC. Any value exceeding this limit constitutes a potential
shock hazard and must be corrected immediately.
TIPS ON PROPER INSTALLATION
1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf
space over, or close to, a heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations where dew is a
factor, near steam radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct venting. The customer should also
avoid the use of decorative scarves or other coverings that might obstruct ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit must follow
the factory-approved mounting instructions. A product mounted to a shelf or platform
must retain its original feet (or the equivalent thickness in spacers) to provide
adequate air flow across the bottom. Bolts or screws used for fasteners must not
touch any parts or wiring. Perform leakage tests on customized installations.
5. Caution customers against mounting a product on a sloping shelf or in a tilted
position, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart.
Caution the customer on the hazards of trying to roll a cart with small casters across
thresholds or deep pile carpets.
7. Caution customers against using extension cords. Explain that a forest of
extensions, sprouting from a single outlet, can lead to disastrous consequences to
home and family.
1-4 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SERVICING PRECAUTIONS
CAUTION: Before servicing the PORTABLE DVD covered by
this service data and its supplements and addends, read and
follow the SAFETY PRECAUTIONS. NOTE: if unforeseen
circumstances create conflict between the following servicing
precautions and any of the safety precautions in this
publication, always follow the safety precautions.
Remember Safety First :
General Servicing Precautions
1. Always unplug the PORTABLE DVD AC power cord from
the AC power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an
electrolytic capacitor.
Caution: A wrong part substitution or incorrect polarity
installation of electrolytic capacitors may result in an
explosion hazard.
2. Do not spray chemicals on or near this PORTABLE DVD or
any of its assemblies.
3. Unless specified otherwise in this service data, clean
electrical contacts by applying an appropriate contact
cleaning solution to the contacts with a pipe cleaner, cotton-
tipped swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication of
contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with
which instruments covered by this service manual might be
equipped.
5. Do not apply AC power to this PORTABLE DVD and / or any
of its electrical assemblies unless all solid state device heat
sinks are correctly installed.
6. Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter (500V)
to the blades of the attachment plug. The insulation resistance
between each blade of the attachment plug and accessible
conductive parts (Note 1) should be more than 1Mohm.
Note 1: Accessible Conductive Parts include Metal panels,
Input terminals, Earphone jacks,etc.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged
easily by static electricity. Such components commonly are
called Electrostatically Sensitive (ES) Devices. Examples of
typical ES 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 ES
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
ES 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 ES devices.
5. Do not use freon-propelled chemicals. These can generate
an electrical charge sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads
electrically shorted together by conductive foam, aluminum
foil, or comparable conductive material).
7. Immediately before removing the protective material from
the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the
device will be installed.
Caution: Be sure no power is applied to the chassis or
circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Normally 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 ES device.)
1-5
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
UPGRADING FIRMWARE
Please follow the below process to download a program with disc
1. Turn on the DVD-player.
(Note. Be sure that there is no disc in DVD-player)
2. Press “SETUP” button on Remote control.
3. Choose a “display” menu by using the cursor button
and then choose a “TV Aspect” menu. And choose
“16:9” menu.
4. Press the 1 --> 3 --> 9 --> 7 --> 1 --> 3 -->
9(numerical button) --> Enter key on remote control
to confirm the system information.
5. Remember or write the model name.
6. Change the program file name of new version to
the model name
Ex> New ver. program file -->
LG_DV_LP81F32000AZV_V014.ROM
Model name --> LG_DV_LV80F32000AZV
Change New ver. program file like this -->
LG_DV_ LV80F32000AZV.ROM
If you don”t change the file name like that, Disc
download isn”t be worked.
7. Copy the changed file to a USB memory stick.
8. Insert the copied USB memory stick to DVD-player.
9. Press the MODE button on the Potable DVD-player.
10. Select External and USB.
11. If the below picture appears on the screen, Select
“Start” and Press “OK” button on Remote controller.
While this menu appears, please don’t eject
disc or take out USB
12.After the below picture appears on the screen, New
DVD program will download from USB memory
stick automatically.
Do not take out the USB memory stick.
1-6 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
13.After USB download is completed, DVD-player
displays below picture automatically.
14.Press the Reset button on the DVD-Player.
15.Remove the USB memory stick.
16.Turn on the DVD-player. Select the initial Language
and Press “Enter” button.
Then, Select “Enter” and Press “Enter” button.
17.Do it again the process 1, 2, 3, 4 to confirm the
version.
18.Press the Reset button on the DVD-Player.
1-7
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SPECIFICATIONS
• DVD PLAYER
Power supply DC 12V (AC adapter terminal), DC 7.5V (Battery)
Power consumption 12W
Weight 980g (without battery pack)
External dimensions(W X D X H) 230 X 145.5 X 39(mm)
Signal system PAL
Laser Semiconductor laser and 1 beam / 2LD System
Frequency range (audio) DVD linear sound:48kHZ sampling 4HZ to 20kHZ
Signal-to-noise ratio(audio) More than 80dB
Dynamic range(audio) More than 80dB
Harmonic distortion(audio) 0.04%
Operating conditions(audio) Temperature: 41°F to 95°F
• TERMINALS
DC input 1
Composite Video IN/OUTPUT 1
Audio IN/OUTPUT
Earphone output 2
Mini USB input 1
3 in 1 memory slot 1
• LIQUID CRYSTAL DISPLAY
Panel size 8inches (16:9)
Projection system TN color transmission
Driving system TFT active matrix
• SUPPLIED ACCESSORIES
RCA Audio/Video cable 1
AC Adapter (MPA-630A) 1
Car Adapter (WLD-041) 1
USB Cable 1
Remote control 1
Battery for Remote control (Lithium) 1
1-8 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
MEMO
2-1
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SECTION 2
EXPLODED VIEWS
CONTENTS
EXPLODED VIEWS .....................................................................................................................................2-2
1. CABINET AND MAIN FRAME SECTION ..................................................................................................2-2
2. PACKING ACCESSORY SECTION...........................................................................................................2-3
2-2 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
A
EC
DF
G
P
A
B
P
D
C
B
H
I
OL
K
J
H
M
N
I
N
M
O
E
J
K
L
G
F
251
250
252
254
A53
A51
A40
A47
A52
257
258
257
259
256
271
271
263
264
262
260
277
279
278
276
273
A50
A46
A43
A48
272
270
270
CABLE7
CABLE4
CABLE3
CABLE2
CABLE1
CABLE5
CABLE8
CABLE6
253
255
255
256
274
256
275
275
258
271
A00
A44
CAUTION)
Do not reuse the battery cell,
after separating the battery
cell from the battery case.
EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION
2-3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PACKING ACCESSORY SECTION
PLUG ASS'Y(RCA CABLE)
806
836
REMOTE CONTROL
900
BOX
802
BOX
802A
BOX
802B
808 BATTERY
801 OWNER'S MANUAL
CABLE, USB
834 CABLE, CIGAR JACK
804 PACKING SHEET
803 BAG
833 CORD
2-4 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
MEMO
3-1
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SECTION 3
ELECTRICAL
CONTENTS
LCD PART........................................................3-2
LCD ELECTRICAL
TROUBLESHOOTING GUIDE ....................3-2
WIRING CONNECTION DIAGRAM...........3-3
LCD PCB <---> KEY PCB, BACK LIGHT,
LCD PANNEL.....................................................3-3
INTERFACE DIAGRAM .................................3-4
LCD PCB <---> KEY PCB INTERFACE.............3-4
BLOCK DIAGRAM ..........................................3-5
CIRCUIT DIAGRAMS .....................................3-7
1. LCD I/F CIRCUIT DIAGRAM .........................3-7
2. PANEL I/F CIRCUIT DIAGRAM .....................3-9
3. FRONT KEY BOARD
CIRCUIT DIAGRAM .....................................3-11
4. LCD BACKLIGHT CIRCUIT DIAGRAM .......3-13
PRINTED CIRCUIT BOARD
DIAGRAMS......................................................3-15
1. LCD P.C.BOARD..........................................3-15
2. FRONT KEY P.C.BOARD ............................3-15
3. BACK-LIGHT P.C.BOARD ...........................3-16
MAIN PART....................................................3-19
MAIN ELECTRICAL
TROUBLESHOOTING GUIDE ..................3-19
1. POWER (DC-DC CONVERTER)
CIRCUIT.......................................................3-19
2. MPEG CIRCUIT...........................................3-22
3. RF/SERVO CIRCUIT ...................................3-23
4. CHARGEING CIRCUIT................................3-26
DETAILS AND WAVEFORMS ON
SYSTEM TEST AND DEBUGGING.........3-27
1. SYSTEM 27MHz CLOCK ............................3-27
2. SDRAM CLOCK...........................................3-27
3. DISC TYPE JUDGEMENT WAVEFORM.....3-28
4. FOCUS ON WAVEFORM ............................3-30
5. SPINDLE CONTROL WAVEFORM
(NO DISC CONDITION)...............................3-30
6. TRACKING CONTROL RELATED SIGNAL
(SYSTEM CHECKING) ................................3-31
7. LCD DRIVE IC(U701) SYSTEM CLOCK
(27MHz)........................................................3-32
8. ZR36966 VIDEO OUTPUT WAVEFORM ....3-32
9. AUDIO OUTPUT FROM AUDIO DAC .........3-33
WIRING CONNECTION DIAGRAMS ......3-34
1. OVERALL CONNECTION LAYOUT
DIAGRAM.....................................................3-34
2. WIRING CONNECTION DIAGRAM-1 .........3-35
3. WIRING CONNECTION DIAGRAM-2 .........3-36
INTERNAL BLOCK DIAGRAM OF ICs..3-37
1. MOTOR DRIVE IC(AM5898N).....................3-37
2. LCD DRIVE IC(T103)...................................3-39
3. VOLUME CONTROLLER IC(PT2257).........3-43
4. SPEAKER AMP IC(PT2303)........................3-44
5. MICOM IC(GT6319).....................................3-45
INTERFACE DIAGRAM ...............................3-47
MAIN <---> LCD PCB INTERFACE .................3-47
BLOCK DIAGRAMS .....................................3-48
1. OVERALL BLOCK DIAGRAM......................3-48
2. POWER BLOCK DIAGRAM ........................3-49
3. MPEG BLOCK DIAGRAM ...........................3-50
4. DISC BLOCK DIAGRAM .............................3-51
5. AV BLOCK DIAGRAM..................................3-52
CIRCUIT DIAGRAMS ...................................3-53
1. MPEG CIRCUIT DIAGRAM .........................3-53
2. MEMORY CIRCUIT DIAGRAM....................3-55
3. OPU & MOTOR CIRCUIT DIAGRAM ..........3-57
4. AV CIRCUIT DIAGRAM ...............................3-59
5. CHARGE CIRCUIT DIAGRAM ....................3-61
6. MAIN KEY CIRCUIT DIAGRAM ..................3-63
CIRCUIT VOLTAGE CHART......................3-65
1. IC VOLTAGE CHART...................................3-65
2. CAPACITOR VOLTAGE CHART..................3-66
PRINTED CIRCUIT
BOARD DIAGRAMS.....................................3-67
1. MAIN P.C.BOARD........................................3-67
2. MAIN KEY P.C.BOARD................................3-67
3. MIS P.C.BOARD ..........................................3-69
LCD PART
3-2 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD ELECTRICAL TROUBLESHOOTING GUIDE
YES
Display condition? Inverter abnormal
NO
Appear shadow form
interference in black background
Backlight condition? U704, Q701, Q702 check
YES
NO
+10V normal? L801, L802, FB701, FB702
YES
YES
NO
+10V, 15V, -10V normal? FB701, FB702, L703, U703 check
NO
RGB signal output?
Check LCD driver IC(U701)
R : 58, 59, 62, 63, 64, 65
G : 49, 50, 52, 53, 54, 55
B : 38, 40, 42, 43, 44, 45
YES
NO
Check L802VOCM level(3.3V)? NO
3-3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
WIRING CONNECTION DIAGRAM
LCD PCB <---> KEY PCB, BACK LIGHT, LCD PANNEL
LCD Pannel
Front key PCB
LCD PCB
Back-light PCB
3-4 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
INTERFACE DIAGRAM
LCD PCB <---> KEY PCB INTERFACE
8
8
1
81
8 1
1
2
3
4
5
6
7
8
K2
IR
LED_G
LED_R
LED_B
GND
5VA
GND
J807
807
8
7
6
5
4
3
2
1
J901
901
K2
IR
LED_G
LED_R
LED_B
GND
5VA
GND
KEY data
R/C d ata
LED Control
Power
3-5
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
T103
LCD Drive
2.5V/3.3V
LCD
Backlight
MPEG
ZORAN
BAT_OUT
GAMMA
TABLE
10V
LCD PANEL
8î inch
3.3V
LCD_POWER
BLOCK
3.3V
27MHz
POL,STHR,STHL,DCLK
LP,GCLK,GOE,STVL,
STVR,R/L,U/P,EDGSL
V1~V14
VID[0] ~ VID[7]
VCLK, SCL,
SDA, STB
PWRCTL_LCD
VLC (10V)
R(0~5),G(0~5),B(0~5)
VGH , VGL
LED_POWER
Terawins
INNOLUX
ZORAN966_LV
INVERTER
BLOCK DIAGRAM
3-6 Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
MEMO
3-7 3-8
CIRCUIT DIAGRAMS
1. LCD I/F CIRCUIT DIAGRAM
07.LCD I/F07.LCD I/F07.LCD I/F
Friday , February 15, 2008Friday , February 15, 2008Friday , February 15, 2008
CKVD
POL
OEVD
STVLD
POLD
G0
B3
B4
B5
VCLK
AVDD33
K2
I2C_SCL
VID1
I2C_SDA
I2C_SCL
IR
G5
R5
R4
R2
R3
R1
R0
G4
G3
G2
G1
/M_RESET
G0
B5
B4
B3
B2
B1
B0
POL
STHR
STHL
CLK
VID2
OEH
CKV
OEV
STVR
STVL
VDD25
LED_G
VDD33R/LU/D
VID3
I2C_SDA
LED_R
VID4
PWRCTL_LCD
VID5
BAT_OUT
VID6
3.3V
VID0
5VA
VID7
STHLD
STHRD
B4D
B3D
R/L
B2
B0
B1
G1D
G2D
G3D
STVRD
G4D
R1D
R2D
R3D
R4D
U/D
STHR
G4
G1
G2
G3
OEH
CLK
STVR
STVL
OEV
R0
R1
STHL
G5
CKV
R5
R2
R4
R3
OEHD
R5D
U/DD
VID5
VID7
VID4
VID6
VID3
VID2
VID1
VID0
CVBS_IN_LCD
CVBS_IN_LCD
/M_RESET
GND
K2
IR
LED_G
LED_R
B0D
B1D
B2D
G3D
G2D
G1D
G0D
STVRD
STVLD
OEVD
CKVD
OEHD
CLKD
STHLD
STHRD
POLD
U/DD
R5D
R4D
R3D
R2D
R1D
R0D
G5D
G4D
BAT_OUT
PWRCTL_LCD
3.3VVLC
VGHVGL
LED_POWER
VGH
VGL
LED_B
5VA
3.3V
LED_POWER
VLC
LED_B
VCLK
CLKD
G5D
R0D
B5D
G0D
VDD33VDD33
AVDD33VDD25VDD33
AVDD33
3.3V
2.5V
3.3V
3.3V
2.5V
VCLK
2
K2
6
I2C_SCL2,5
VID1
2
IR
6
/M_RESET2,3,6
VID2
2
LED_G
6
VID3
2
I2C_SDA2,5
LED_R
6
VID4
2
PWRCTL_LCD
2
VID5
2
BAT_OUT4,6
VID6
2
VID0
2
3.3V2,3,4
5VA4,5,6
VID7
2
CVBS_IN_LC D
2
LED_B
6
GND2,3,4, 5,6
AZ1117H-ADJ SMD
31
4
2
VGH=+15V VGL=-10V
VLC=+10V
OFF-PAGE CONNECTION
<AVDD33>
P.ON(3.25V/30mA)
DVD_PLAY(3.24V/30mA)
<VDD33>
P.ON(3.25V/40mA)
DVD_PLAY(3.25V/40mA)
<2.5V>
P.ON(2.35V/90mA)
DVD_PLAY(2.35V/92mA)
<VLC>
P.ON(3.25V/140mA)
DVD_PLAY(3.24V/155mA)
<Backlight>
P.ON(7.48V/140mA)
DVD_PLAY(7.48V/140mA)
Changed component :
RN701~RN707 7EA(33ohm array resistant --> MEA3216L50R0T Array bead)
C735
22uF/16V
C735
22uF/16V
R727
6.8 1%
R727
6.8 1%
1 2
D706
SS14
D706
SS14
C707
0.1uF
C707
0.1uF
L703
10uH
L703
10uH
R721
68K
R721
68K
C701
0.1uF
C701
0.1uF
L705
LSS57S30-330
L705
LSS57S30-330
R718
2K
R718
2K
C706
0.1uF
C706
0.1uF
TP702TP702
C713
0.1uF
C713
0.1uF
R714
6.2K
R714
6.2K
12
+
CM703
100uF/10V
+
CM703
100uF/10V
R728
NC
R728
NC
R719
10K
R719
10K
R734 33R734 33
C714
0.1uF
C714
0.1uF
TP704TP704
R717
10K
R717
10K
R715
7.5K
R715
7.5K
C737
2.2uF/25V X5R
C737
2.2uF/25V X5R
2 3
1
B
C
E
Q702
2N3906
B
C
E
Q702
2N3906
R708
1M
R708
1M
C741
10uF/25V
C741
10uF/25V
C731
0.1uF
C731
0.1uF
C728
0.1uF
C728
0.1uF
3
2
1
D705
BAT54S
D705
BAT54S
ACB2
2
ACB1
3
ACB0
4
HSI
19
AGNDB
5
AGNDG
10
AGNDR
15
AY2
7
AY1
8
AY0
9
ACR2
12
ACR1
13
ACR0
14
VSI
18
SOYIN
97
AVDDP 91
AVDDP 95
QE0 36
QE1 37
QE2 38
QE3 40
QE4 42
QE5/sRL 43
QE6/sUD 44
QE7/sHSo 45
QE8/sVSo 46
QE9/sDEN 47
QE10/sD0 49
QE11/sD1 50
QE12/sD2 52
QE13/sD3 53
QE14/sD4 54
QE15/sD5 55
QE16/sD6 56
QE17/sD7 57
QE18/VDT10/CC_B 58
QE19/VDT11/CC_G 59
QE20/VDT12/CC_R 62
QE21/VDT13/CC_BOX 63
QE22/VDT14/CC_Y 64
QE23/VDT15/CC_CKO 65
HSO/POL 67
VSO/STH1 68
DEN/ST H2 69
CLK O/CLKH 71
LP 72
GCLK 74
GOE 75
STV1 76
STV2 77
VDT0
78
VDT1
79
VDT2
80
VDT3
81
VDT4
82
VDT5
83
VDT6
84
VDT7
85
VCLK
86
SDA
21
SCL/ SCANB
22
XTALI
24
XTALO
25
FILT
93
VPLL
94
VREF
98
PWM3/VDT8/CC_HSO
30
GPIO3/VDT9/CC_VSO
34
GPIO2/VDT17/VDT10/CC_B/AP
33
GPIO1/VDT11/CC_G/Q1H
32
GPIO0/VDT12/CC_R
31
PWM2/VDT16/VDT 13/CC_BOX
29
PWM1/VDT14/CCY
28
IR1/VDT15/CC_CKO
27
LODD/LVSync
87
LHREF/LHSnC
88
XCLK2MC
26
RSTB
20CPUINT
23
AVDDB 1
AVDDG 6
AVDDR 11
AVDDDAC 99
VDD25 17
VDD25 41
VDD25 66
VDD25 89
VDD33 35
VDD33 48
VDD33 61
VDD33 73
GNDP
92
GNDP
96
GNDAC
100
GND
16
GND
39
GND
51
GND
60
GND
70
GND
90
U701
T103
U701
T103
R731
0
R731
0
12
+
CM704
100uF/10V
+
CM704
100uF/10V
12
+
C733
22uF/16V
+
C733
22uF/16V
C702
0.1uF
C702
0.1uF
C729
0.1uF
C729
0.1uF
R725
10K
R725
10K
C708
0.1uF
C708
0.1uF
R723
10K
R723
10K
C721
0.1uF
C721
0.1uF
TP703TP703
C704
0.1uF
C704
0.1uF
C740
0.33uF
C740
0.33uF
R711
680
R711
680
1
82
73
64
9
5
10
RN702
MEA3216L101R
RN702
MEA3216L101R
1
82
73
64
9
5
10
RN707
MEA3216L101R
RN707
MEA3216L101R
C711
0.1uF
C711
0.1uF
1
82
73
64
9
5
10
RN705
MEA3216L101R
RN705
MEA3216L101R
R704 33R704 33
R701
0
R701
0
C730
0.1uF
C730
0.1uF
12
+
CM702
100uF/10V
+
CM702
100uF/10V
C746
20pF
C746
20pF
C703
0.1uF
C703
0.1uF
C743
0.1uF
C743
0.1uF
1 2
L701
FB0603
L701
FB0603
R732 33R732 33
R729
270K
R729
270K
10
9
8
7
6
5
4
3
2
1
11
13
12
15
14
16
20
19
18
17
21
22
J702
CON20_0.8MM
J702
CON20_0.8MM
R712 680R712 680
R733 33R733 33
1 2
FB702
FB0805
FB702
FB0805
1 2
D707
SS14
D707
SS14
R722
1K
R722
1K
C742
0.01uF
C742
0.01uF
1 2
L707
FB0603
L707
FB0603
C722
4.7uF/25V
C722
4.7uF/25V
C736
22uF/16V
C736
22uF/16V
C720
0.1uF
C720
0.1uF
C734
0.1uF
C734
0.1uF
C744
0.1uF
C744
0.1uF
1
82
73
64
9
5
10
RN704
MEA3216L101R
RN704
MEA3216L101R
1
12
23
34
45
56
67
78
8
16
16
15
15
9
910
1011
1112
1213
1314
14
17
1718
18
19 19
20 20
J701
CON18_0.8MM
J701
CON18_0.8MM
1 2
D704
D_10V
D704
D_10V
C716
20pF
C716
20pF
C726
1uF
C726
1uF
R730 10R730 10
1
82
73
64
9
5
10
RN706
MEA3216L101R
RN706
MEA3216L101R
1 2
D701
D_15V
D701
D_15V
R735 33R735 33
C705
0.1uF
C705
0.1uF
1
82
73
64
9
5
10
RN703
MEA3216L101R
RN703
MEA3216L101R
3
2
1
D703
BAT54S
D703
BAT54S
R724
10K
R724
10K
R705 33R705 33
C739
2.2uF/16V X5R
C739
2.2uF/16V X5R
C715
22pF
C715
22pF
IN 5
SW 1
EN
4
GND
2
FB 3
U703
RCR2561
U703
RCR2561
C738
10uF/25V
C738
10uF/25V
R710
NC
R710
NC
1 2
FB701
FB0805
FB701
FB0805
R702
NC
R702
NC
C732
0.1uF
C732
0.1uF
R713 33R713 33
1 2
L708
FB0603
L708
FB0603
C727
0.1uF
C727
0.1uF
R707 75(1%)R707 75(1%)
C725 1uFC725 1uF
OUT 2
IN
3
GND
1
TAB 4
U702
AZ1117H-ADJ SMD
U702
AZ1117H-ADJ SMD
L704
6.8uH
L704
6.8uH
1
82
73
64
9
5
10
RN701
MEA3216L101R
RN701
MEA3216L101R
1 2
L706 FB1206
L706 FB1206
12
D709
B340LA
D709
B340LA
1
12
23
34
45
56
67
78
89
910
1011
1112
1213 13
14 14
J703
CON12_0.8MM
J703
CON12_0.8MM
1
3 2
B
C
E
Q701
2N3904
B
C
E
Q701
2N3904
C709
0.1uF
C709
0.1uF
C723
4.7uF/25V
C723
4.7uF/25V
TP701TP701
R716
68K
R716
68K
IN
5
EN
4
GND
2
BST 1
FB 3
SW 6
U704
MP2359DT
U704
MP2359DT
R726
10K
R726
10K
C712
0.1uF
C712
0.1uF
R709
15K
R709
15K
1 2
L702
FB(1206)
L702
FB(1206)
1 2
3
X70 1
27MHz
X70 1
27MHz
C710
0.1uF
C710
0.1uF
C718
3300pF
C718
3300pFC717
0.1uF
C717
0.1uF
R706 0R706 0
C719
330pF
C719
330pF
1 2
D708
13V
D708
13V
3
2
1
D702
BAT54S
D702
BAT54S
R720
100K
R720
100K
R703
0
R703
0
12
+CM701
100uF/10V
+CM701
100uF/10V
C724 1uF
C724 1uF
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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