LG DP170 Service Manual

PORTABLE DVD

SERVICE MANUAL

MODEL : DP170

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.

MODEL : DP170SERVICE MANUAL

P/NO : AFN30721334 MAY,2006

1-1

CONTENTS

SECTION 1 . . . . SUMMARY

SECTION 2 . . . . EXPLODED VIEWS

SECTION 3 . . . . ELECTRICAL

SECTION 4 . . . . REPLACEMENT PARTS LIST

1-2

SECTION 1

SUMMARY

CONTENTS

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ............. 1-3

SERVICING PRECAUTIONS................................................................................................... 1-4

SPECIFICATIONS ...................................................................................................................... 1-5

1-3

CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY,
NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC­TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILLNOT ONLY
VOID THE WARRANTY, BUT MAYLEAD TO YOUR BEING LIABLE FOR ANY
RESULTING PROPERTYDAMAGE OR USER INJURY.

SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE
THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY
CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE,
INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE
USER.

WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTEC­TION FROM A.C. LINE SHOCK.

SAFETY CHECKS

AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED. A
CHECK SHOULD BE MADE OF THE FOLLOWING.

SUBJECT : FIRE & SHOCK HAZARD

1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAY
AS TO AVOID POSSIBILITY OF ADJACENT COMPONENT SHORTS.
THIS IS ESPECIALLY IMPORTANT ON THOSE MODULES WHICH ARE
TRANSPORTED TO AND FROM THE REPAIR SHOP.

2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES
SUCH AS INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN
RELIEFS, POWER SUPPLY CORDS, AND OTHER HARDWARE HAVE
BEEN REINSTALLED PER 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, DAMAGED
INSULATION (INCLUDING A.C. CORD). AND REPLACE IF NECESSARY
FOLLOW ORIGINAL LAYOUT, LEAD LENGTH AND DRESS.

5. NO LEAD OR COMPONENT SHOULD TOUCH A RECIVING TUBE OR
A RESISTOR RATED AT 1 WATT OR MORE. LEAD TENSION AROUND
PROTRUNING METALSURFACES MUST BE AVOIDED.

6. ALL CRITICAL COMPONENTS SUCH AS FUSES, FLAMEPROOF
RESISTORS, CAPACITORS, ETC. MUST BE REPLACED WITH EXACT
FACTORY TYPES, DO NOT USE REPLACEMENT COMPONENTS
OTHER THAN THOSE SPECIFIED OR MAKE UNRECOMMENDED CIR­CUIT MODIFICATIONS.

7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN A.C.
LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABI­NET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HAN­DLE AND SCREWS) TO BE SURE THE SET IS SAFE TO OPERATE
WITHOUT DANGER OF ELECTRICAL SHOCK. DO NOT USE A LINE
ISOLATION TRANSFORMER DURING THIS TEST USE AN A.C. 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. 150.V A.C TYPE CAPACITOR
BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CON­DUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME.
MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500
OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG
AND REPEAT A.C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED
METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 75
VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C ANY
VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK
HAZARD AND MUST BE CORRECTED IMMEDIATELY.

SUBJECT: 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 MAG-
NITUDE TO CONSTITUTE ARISK 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.

SUBJECT : X-RADIATION

1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER­SONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTEN­TIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PIC­TURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-RAYS WHEN
THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE
PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERA­TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC­TURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIR­CUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIR­ABLE LEVELS.

2. ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST BE
USED. DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN
COLOR SETS, ALWAYS RE-INSTALLTHEM.

3. IT IS ESSNTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN
ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRA
TION OF THE METER SHOULD BE CHECKED PERIODICALLY
AGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE
ATYOUR DISTRIBUTOR.

4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY
THERE IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY
TIME A COLOR CHASSIS IS SERVICED. THE BRIGHTNESS SHOULD
BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE
WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES
NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING
CORRECTLY, WE SUGGEST THAT YOU AND YOUR SERVICE ORGA­NIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGU­LATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCE­DURE. AND THAT THE HIGH VOLTAGE READING BE RECORDER ON
EACH CUSTOMER’S INVOICE.

5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN
A PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE,
AVOID BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND
THE HIGH VOLTAGE SUPPLY. DO NOT OPERATE THE PRODUCT
LONGER THAN IS NECESSARY TO LOCATE THE CAUSE OF EXCES
SIVE VOLTAGE.

6. REFER TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES
DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS
(WHERE USED).

SUBJECT: IMPLOSION

1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTE
GRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE
TAKEN TO AVOID DAMAGE DURING INSTALLATION, AVOID
SCRATCHING THE TUBE. IF SCRATCHED REPLACE IT.

2. USE ONLYRECOMMENDED FACTORYREPLACEMENT TUBES.

SUBJECT : TIPS ON PROPER INSTALLATION

1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBY­HOLE OR CLOSELY FITTING SHELF SPACE. OVER OR CLOSE TO
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 AFACTOR, ETC.

3. AVOID PALCEMENT WHERE DRAPERIES MAY OBSTRUCT REAR
VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DEC­ORATIVE SCARVES OR OTHER COVERINGS WHICH 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
TEST ON CUSTOMIZED INSTALLATIONS.

5. CAUTION CUSTOMERS AGAINSTTHE MOUNTING OF APRODUCT ON
SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS
PROPERLY SECURED.

6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS
MOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZ­ARDS OF TRYING TO ROLLA CART WITH SMALL CASTERS ACROSS
THRESHOLDS OR DEEP PILE CARPETS.

7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND
WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES,
INC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION
RECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V.’S OF
THE SAME OR LARGER SCREEN SIZE.

8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS,
EXPLAIN THATAFOREST OF EXTENSIONS SPROUTING FROM A SIN­GLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO
HOME AND FAMILY.

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

A.C. VOLTMETER

GOOD EARTH GROUND
SUCH AS THE WATER
PIPE. CONDUIT. ETC

PLACE THIS PROBE
ON EACH EXPOSED
METALPART

1-4

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 publications, always follow the safety precautions.

Remembers 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) Disconnection or reconnecting any internal electrical

plug or other electrical connection.

(3) Connecting a test substitute in parallel with an elec-

trolytic 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

whitch 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 cerrectly installed.

6. Always connect test instrument ground lead to the

appropriate ground before connection 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 including 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 grouned-tip soldering iron to solder or unsolder
ES devices.

4. Use only an anti-static solder removal device. Some
solder removal devices not classified a “anti-static” can
generate electrical charges sufficient to damage ES
devices.

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

6. Do not remove a replacement ES device from its protec
tive 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

SPECIFICATIONS

[DVD player]

Power supply DC 9.5V (AC adapter terminal), DC 7.4V (Battery)
Power consumption 12 W with battery
Weight 12.6 ibs (0.66kg)(without battery pack)
External dimensions(W X D X H) (186 X 150 X 25mm)
Signal system NTSC
Laser Semiconductor laser, wavelength 650 nm (DVD),

780nm(CD)
Frequency range (audio) DVD linear sound:48KHZ sampling 4 HZ to 20KHZ
96KHZ sampling 4 HZ to 44 KHZ
Signal-to-noise ratio(audio) More than 95dB
Dynamic range(audio) More than 95dB
Harmonic distortion(audio) 0.08%
Operatingconditions(audio) Temperature: 41°F to 95°F, Operation status: Horizontal

[Connectors]

Video input/output(VIDEO IN/OUT) 1.0V(P-P),75R,negative sync ø3.5m X 1
Audio output (optical audio) Optical connector (ø3.5mm) X 1
Audio input/output 2.0Vrms (1 KHZ,0 dB), ø3.5m X 1
(AUDIO IN/OUT, analog audio)
Earphone terminal ø3.5mm stereo mini jack X 1

[Liquid Crystal Display]

Panel size 7 inches (16:9)
Projection system TN color transmission
Driving system TFT active matrix

[Supplied Accessories]

RC Aaudio/Video cable 1
AC Adapter (AD-DP40) 1
Power Cord 1
Battery Pack (DP-BT50) 1
Remote control 1
Battery for Remote control (Lithium) 1

2-12-1

SECTION 2

EXPLODED VIEWS

CONTENTS

EXPLODED VIEWS.....................................................................................................................2-2

• CABINET AND MAIN FRAME SECTION ..................................................................................2-2

2-22-2

EXPLODED VIEWS

• CABINET AND MAIN FRAME SECTION

A

5

4

3

2

1

BCD

A00

292

295

296

293

260

A46

278

A47

A42

281

275

267

275

A48

262

284

265

285

266

A44A

283

A45A

282

A46A

264

277

272

A51

LCD

277

A40

A49A

3-1

SECTION 3

ELECTRICAL

CONTENTS

LCD PART ................................................................................................................3-2

LCD TROUBLE SHOOTING GUIDE .....................................................................3-3

LCD CIRCUIT DIAGRAMS ....................................................................................3-5

LCD BLOCK DIAGRAM........................................................................................3-9

LCD PRINTED CIRCUIT DIAGRAMS..................................................................3-10

MAIN PART ............................................................................................................3-11

MAIN ELECTRICAL TROUBLE SHOOTING GUIDE...........................................3-11

DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING..............3-19

MAIN BLOCK DIAGRAMS...................................................................................3-28

MAIN CIRCUIT DIAGRAMS.................................................................................3-30

MAIN PRINTED CIRCUIT DIAGRAMS................................................................3-56

1) Power measuring

Measure each power after power supply.
C83(-) : -14.5V, C82(+) : +15V,C100 : +7.5V,C97(+) : +5V,C43(+) : 3.3V

2) VCOM waveform adjustment

Adjust the VCOM level while changing the VR1 as below waveform by using the scope in the
C84.

3-2

Vcom Waveform

63.5

3Vp-p

GNDGND

LCD PART

63.5

µs

4.6V

0.7V

5.5.3Vp-p

3-3

DESPLAY CONDITION? INVERTOR ABNORMAL

Appear shadow form
interference in black background

There is only bring light.(LCD B/D abnormal)

Fuse Replace

IC(U1) Check and Replace

D2 ,D3 ,D8 Check

Main B/D on located

IC(U6) Check and Replace

A/V IN S/W Check

IC(U2) Check and Replace

IC(U3) Check and Replace

FUSE NORMAL?

IC(U1) NORMAL OPERAE

7.5V,15V,-14.5V NORMAL?

+5V NORMAL?

Y/C DISPLAY SIGNAL?

R. G .B SIGNAL OUTPUT?

VCOM SIGNAL?(5.5VPP)

YES

YES

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

LCD TROUBLE SHOOTING GUIDE

3-4

LCD MODE CONT SIGNAL?

ALL “LOW”(MORMAL CONDITION)?

MAIN B/D Check

Power source and D2,D3,U4 Check

TFT LCD PRESSURE VOLTAGE?

+15V,- 14.5V,+5V

TFT LCD NORMAL?

Replace

COLOR ADJUSTING NORMAL?

Readjust as adjustement standard

EACH CONNECTOR?

Replace and Reassemble

END

Replace

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

NO

3-5

LCD CIRCUIT DIAGRAMS

L?

nc(1.6)

C45

0.1uF

33

1RP1

1 8
2 7
3 6
4 5

1 8
2 7
3 6
4 5

1RP2 33

FB1

300

FB2

nc

1C2
22P

nc

FB3

VDD22

+

C46
100uF/6.3V

L/R
U/D

STV2

1RP3
1 8
2 7
3 6
4 5

1C1

22P
1C3
22P

1 8
2 7
3 6
4 5

1RP4 33

33

OEV
CKV
OEH
VCOMO

STH1
STH2
CPH1
CPH2

CPH3
RSET
COMP

L7

VDD33

VDD33

AVSS33G

76

VDD33

AVSS

VDD33

AVSS33R

95

2735607789

91

3
VD3

VD33

VDD33

DPLLGND

GND

GND

25374851555879

VDD22

VDD25

VDD25

VDD25

POL/VCOM/HSO

GND

GND

GND

VDD25

VDD25

LP/OEH

STH1/HSO

STH2/DE
CPH1/LLCK1
CPH2/LLCK2
CPH3/LLCK3

GND

GND

GND

945961

DVDD

DVSS

VDT0
VDT1
VDT2
VDT3
VDT4
VDT5
VDT6
VDT7

VCLK

STV1
STV2

GCLK

RSET

COMP

96

AVDD

DPLLVC25

81
82
83
84
85
86
87
88

90
38

RL

39

UD

40
41
42

GOE

43
44
45
49
50
52
53
54
71
72

62

IOB

65

IOG

68

IOR

AVDD33

1791517236366697526475680465778

U2

AVDDB

AVDDB

AVDDG

AVDDG

AVDDR

VBIVALID/XbusRD

FIELD/XbusWR

AGNDB

AGNDB

32

33

AVDDR

AVDD33

AVDD33B

AVDD33G

AVDD33R

TERAWINS T100

AGNDG

AGNDG

AGNDR

AGNDR

AVSSD

AVSS33B

24

646770

S_Y

6

AC0/ACB0

5

3312

C67

0.1uF

S_C

AV

AC1/ACB1

4

AC2/ACB2

14

CVBS0/AY0

13

CVBS1/AY1

12

CVBS2/AY2

22

CVBS3/ACR0

21

CVBS4/ACR1

20

CVBS5/ACR2

3

CBMID

11

CGMID

19

CRMID

29

IICA3/SDA

30

SCANB/SCL

92

XTALI

93

XTALO

36

XCLK2MC

28

RSTB

31

CPUINT/SCANST

100

VREF

73

VREFIN

74

VREFOUT

99

FIB1

34

PWM

NC1

979828101618

NC2

C55

0.1uF

C54

0.1uF

CBMID

CGMID

R20

SDA

C62
22PF

VDD33

12

R29

4.7K

+

4.7uF/10V

SCL

R65
R66

TP1

C64

0.1uF

C68

C?

nc(104)

Y1

27MHZ

12

R24

C61

1M

1(22)PF

R30

RESET_T

33

R21

47uF/16V

12

33
33012
012

R25

33 12

+

C65

FB

C44

0.1uF

IOB
IOG
IOR

5VD

47uF/10V

C81

VCOMO

C92

+

10uF/16V

C80

0.1uF

R41

C84

10uF/16V

R47
10K

C103
470P

22K

VR1

3

+

VR50K

-15V

1 2

R44
1K

C91
+

VCOM

10u/16V

-15V

L17

10uH

C98

0.1uF

1

2
R52
150K

C104
18P

3

4 5

R54

U3

678

NJM3414AM

-I/P B

V+

O/P B

+I/P A

-I/P A

O/P A

GND+I/P B

123

4 5

R46
10K

R48

10K

R50

20K

3

1 2

VR2
VR50K

-10V
L14

0805

2.7uH

3VD3

R45

8.2K

VGOFF

R49

5.6K

EO
IN
SHDN
GND SW

4.7K

U5

C99
47uF/10V

FREQ

AAT1102

D2

+15V

16V

C82

4.7uF/25V

R42
10K

C85

1

1uF

C89

2

1

C95

0.1uF

L15

8

SS

7
6

VDD

3VD3

BAT54S

C102

27nF

D6

BAT54S

5.4uH

C87

3

0.1uF

C93

3

0.1uF

D8

2 1

1N5819

D4

1uF

2

C88

0.1uF

C94

0.1uF

D5

3

BAT54S
D7

3

BAT54S

C96

0.1u
R51
51k

R53
10k

-15V

7VD5

4.7uF/25V
R43
33

1C86 1uF

2

C90

1

2

U4

C100

47uF/16V

D3

15V

C83

1uF

3214

78L05
VOUTVIN

GND

TAB

47uF/10V

5VD

+

C97

C101

0.1uF

3-6

-15V

5VD

GNDD

+7.5V

IOB

L13

L10

10uH IRON(1206)

L16

FB 10R

+15V

10uH IRON(1206)

C75

0.1uF

C78

+

10uF/10V
R38
75

10uH

C73

4.7uF/25V

+

C58
10u/16V

10u/25V

R34
39K

R39
10K

L12

C70

J1

+

+

GNDD

C74

0.1uF

C71
100n

GNDD

4K7

VDD33

VDD33

VCOM
VGL
STH1R55

R56

CPH3

4K7

CPH2
CPH1
OEH

R57 10K1 2

L/R
STH2

VG
VB

VGOFF

OEV
CKV
STV2
U/D

FB 10R(0603)

L11

D070L001-A01(Panel30Pin)

JP3

30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

SPR+
SPR­SPL+
SPL­GND
KEY
RESET_T

SDA
SCLVR

GND

SY
GND
SC
GND
CVBS
GND

3.3V

3VD3

5VD

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20

R+
R­L+
L­GND1
KEY
REST
SDA
SCL
GND2
SY
GND3
SC
GND4
CVBS_IN
GND5

3.3V-TFT

3.3V_T100

3.3V_AAT110
TFT5V

CON_20-A

2

BIAS

C63
1uF

100pF
C69

BIAS

R28

1M

C60

0.1uF

VG

R35
430

C77
1uF

R36
1M

C76

0.1uF

VB

C59

0.1uF

+7.5V

R26
39K

R27
430

31

Q3

2

2N3904

C79

R40

100pF

100

IOG

C66

10uF/10V
R31
75

+

R32
10K

31

Q2

2

2N3904

R33
100

L8 10uH

1206

+

47uF/16V

C47

IOR

+7.5V

C48

0.1uF

C53

10uF/10V
R12
75

BIAS

7VD5

C49
R9
39K

430

C52
1uF

R11
1M

0.1uFR10

VR

31

+

R13
10K

Q1

2

2N3904

R14

C56

100

100pF

3-7

100uF/6.3V

100uF/6.3V

100uF/6.3V

C11

C26

C1

+

+

C2

AVDD33

+

0.1uF

VDD33

C12

0.1uF

C27

0.1uF

0.1uF

C4

0.1uF

C14

0.1uF

C5

0.1uF

C29

0.1uF

C3

C13

0.1uF

C28

0.1uF

C15

0.1uF

C30

0.1uF

C6

0.1uF

C16

0.1uF

C31

0.1uF

C17

0.1uF

C7

0.1uF

C32

0.1uF

C18

0.1uF

C8

0.1uF

C19

0.1uF

+7.5V BIAS

20K

R3

R4

10K

C20

0.1uF

+

C24
47uF/16V

VDD33

CGMID

VDD22

C33

0.1uF

R18

4.7K

R22
1K

R19

4.7K

CBMID

R23
1K

C39

0.1uF

L3 10uH

1206

+

C34

47uF/10V

VDD33

C35

0.1uF

+

47uF/10V

+

C40

47uF/10V

D1

IN5819

L4 10uH

1206

C36

L5 FB

1206

12

C41

0.1uF

+2.5V

+3.3V

AVDD33

L6 10uH

3.3V

1206

C43

+

47uF/6.3V

KEY

R15

1.2K(3.9K)

SW2

R16

2.7K(8.2K)

SW3

R17

4.7K(24K)

SW4SW1

3-8

SY

SC

CVBS

0603

C22

680pF

L2 2.7uH

0603

C37

680pF

L9 2.7uH

0603

C50

680pF

C23

330pF

330pF

C51

330pF

R1

R7

R5

C21

R2
75

R6
75C38

R8
75

104

104

C25

C42
104

S_C

S_Y

AV

VDD33

SPL+
SPL-

SPR+
SPR-

C9
1uF

0

0

0

JP1

2
1

JP2

2
1

U1
CM1117SCM223 2.5V
PCBCOMPONENT_1

TAB

OUTIN

GND

1

AVDD33L1 2.7uH

C72

0.1uF
COMP

RSET

R37
1K

4

+2.5V

23

+

C10

47uF/6.3V

3-9

LCD BLOCK DIAGRAM

OEH

OEV

STV

TFT LCD 7" WIDE

STH

CKV

VCOM

RGB

TERAMINS T100

15V -14.5V 7.5V 5V

INVERTER

DC-DC
CONV

SY

SC

CVBS