LG DP9821P User manual
PORTABLE DVD
SERVICE MANUAL
MODEL : DP9821P(DP9821BPM)
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL : DP9821P(DP9821BPM)SERVICE MANUAL
P/NO : 3829RHP 47H
JUNE, 2 5
Printed in Korea
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 MANUFAC-
TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY
VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY
RESULTING PROPERTY DAMAGE 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 PROTEC-
TION FROM A.C. LINE SHOCK.
SAFETY CHECKS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED. A
CHECK SHOULD BE MADE OF THE FOLLOWING.
SUB ECT : 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.
. 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 METAL SURFACES 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 CIR-
CUIT MODIFICATIONS.
7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN A.C.
LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABI-
NET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HAN-
DLE 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. VOLT-
METER, HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, IN
THE FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT RESIS-
TOR, PARALLELED BY A .15 MFD. 150.V A.C TYPE CAPACITOR
BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CON-
DUIT, 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.
SUB ECT: 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 A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIAN-
GLE 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 PER-
SONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTEN-
TIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PIC-
TURE 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. OPERA-
TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC-
TURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIR-
CUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIR-
ABLE LEVELS.
. ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST BE
USED. DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN
COLOR SETS, ALWAYS RE-INSTALL THEM.
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
AT YOUR 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 ORGA-
NIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGU-
LATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCE-
DURE. 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.
. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES.
SUBJECT : TIPS ON PROPER INSTALLATION
1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBY-
HOLE OR CLOSELY FITTING SHELF SPACE. OVER OR CLOSE TO
HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW.
. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO
INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIA-
TORS WHERE STEAM LEAKAGE IS A FACTOR, ETC.
3. AVOID PALCEMENT WHERE DRAPERIES MAY OBSTRUCT REAR
VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DEC-
ORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT
OBSTRUCT VENTILATION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMER-
CIAL 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 AGAINST THE MOUNTING OF A PRODUCT 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 HAZ-
ARDS OF TRYING TO ROLL A 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 THAT A FOREST OF EXTENSIONS SPROUTING FROM A SIN-
GLE 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
METAL PART
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 unfore-
seen 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.
( ) 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.
. 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 resis-
tance between each blade of the attachment plug and acces-
sible conductive parts (Note 1) should be more than 1M-
ohm.
Note 1 : Accessible Conductive Parts including Metal pan-
els, 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 compo-
nent or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, obtain and wear a commer-
cially available discharging wrist strap device, which
should be removed for potential shock reasons prior to
applying power to the unit under test.
. 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 elec-
tricity sufficient to damage an ES device.)
1-5
SPECIFICATIONS
[DVD player]
Power supply DC 9.5 V (AC adapter terminal), DC 7.4 V (Battery)
Power consumption 15 W with battery
Weight 1.46 lbs (0.66 kg) (without battery pack)
External dimensions (W X D X H) 7.5 x 1.1 x 6.3 inches (190 x 8 x 159.5 mm)
Signal system PAL
Laser DVD Laser wavelength 66 + 5 / 66 -15 nm
CD Laser wavelength 785+ 5 / 785-15 nm
Frequency range (audio) DVD linear sound: 48kHz sampling 4 Hz to 0 kHz
96kHz sampling 4 Hz to 44 kHz
Signal-to-noise ratio (audio) More than 95 dB
Dynamic range (audio) More than 95 dB
Harmonic distortion (audio) 0.008 %
Operating conditions Temperature: 4°C to 35°C, Operation status: Horizontal
[Connectors]
Video input/output (VIDEO In/Out) 1.0 V (p-p), 75 Ω, negative sync., ø3.5mm mini jack x 1
Audio oinput/output (AUDIO In/Out, analog audio): Optical connector (ø3.5mm) x 1
Audio input/output .0 Vrms(1 KHz, 0 dB), ø3.5m mini jack x 1
(AUDIO In/Out, analog audio)
Earphone terminal ø3.5mm stereo mini jack x
[Liquid Crystal Display]
Panel size: 7 inches wide (diagonal)
Projection system: Y/C stripe
Driving system TFT active matrix
[Supplied Accessories]
• Supplied Accessories..............................................1
• RCAAudio/Video cable ...........................................1
• AC Adapter (DP-AC90) ...........................................1
• Automotive Adapter (DP-CA90) ..............................1
• Battery Pack (DP-BS930) .......................................1
• Remote control........................................................1
• Battery for Remote control (Lithium Battery) ..........1
2-1
SECTION 2
EXPLODED VIEWS
CONTENTS
EXPLODED VIEWS .....................................................................................................................2-2
• Cabinet and Main Frame Section ............................................................................................2-2
• Packing Accessory Section .....................................................................................................2-4
2-2
EXPLODED VIEWS
• Cabinet and Main Frame Section
272
250
A48
290
275
277
A51
277 276
A49
A45
A44
809
280
284
281
A46
260
268
270
269
267
266
265
263
A43 A00
294
293
295
292
296
251
252
262
261
LCD
MAIN
KEY
A41 A42
A
5
4
3
2
1
BCD
2-3
• Packing Accessory Section
OWNER'S MANUAL
801
REMOCON
900
R/C BATTERY
808
R/C BATTERY BAG
804A
830 AC ADAPTER
831 ADAPTER DC DC 12
814 PLUG ASS'Y
BATTERY
809
GIFT BOX
802B
BOX
802
OPTIONAL PARTS
ACCESSORY BOX
802A
BAG
804
PACKING
803
3-1
SECTION 3
ELECTRICAL
CONTENTS
LCD PART ................................................................................................................3-2
ELECTRICAL TROUBLE SHOOTING GUIDE ......................................................3-11
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING................3-20
BLCOK DIAGRAMS ..............................................................................................3-29
CIRCUIT DIAGRAM ................................................................................................3-31
PRINTED CIRCUIT DIAGRAMS ............................................................................3-49
1) Power measuring
Measure each power after power supply.
C83(-) : -14.5V, C8 (+) : +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) VCOM waveform adjustment
Adjust the VCOM level while changing the VR801 as below waveform by using the scope in the
CE814.
3-2
Vcom Waveform
63.5
63.5
µs
5.
5.
3Vp-p
3Vp-p
0.7V
4.6V
GND
GND
LCD PART
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
D , D3, D8 Check
Main B/D on located
IC(U6) Check and Replace
A/V IN S/W Check
IC(U ) 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(1/2)
3-4
LCD MODE CONT SIGNAL?
ALL “LOW”(MORMAL CONDITION)? MAIN B/D Check
Power source and D ,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
LCD TROUBLE SHOOTING GUIDE(2/2)
3-5
LCD BLOCK DIAGRAM
TFT LCD 7î WIDE
INVERTER
TERAMINS T100
DC-DC
CONV
SY
SC
CVBS
15V -14.5V 7.5V 5V
OEH
OEV
STV
STH
CKV
VCOM
RGB
3-6
LCD CIRCUIT DIAGRAMS
COMP
SCL
R66 012
CPH2
C45
0.1uF
R21 33
12
TP1
1C3
22P
R25 33 12
S_Y
IOR
C61
1(22)PF
VDD33
AV
1RP3
33
1 8
2 7
3 6
4 5
+
C68
4.7uF/10V
+
C46
100uF/6.3V
SDA
IOB
VDD22
C44
0.1uF
RSET
CKV
L/R
AVDD33
IOG
C67
0.1uF
U/D
OEV
RESET_T
Y1 27MHZ
C55
0.1uF
C62
22PF
STH1
CPH3
R29
4.7K
12
1RP2 33
1 8
2 7
3 6
4 5
1C2
22P
L7 FB
STH2
C? nc(104)
FB2 nc
FB1 300
+
C65
47uF/16V
C64
0.1uF
CGMID
R20 3312
VDD33
CPH1
R30
33
L?
nc(1.6)
FB3 nc
CBMID
C54
0.1uF
OEH
U2
TERAWINS T100
6
5
4
14
13
12
22
21
20
3
19
11
29
30
81
82
83
84
85
86
87
88
90
92
93
36
28
31
34
32
33
38
39
40
41
42
43
44
45
49
50
52
53
54
62
65
68
71
72
73
74
99
100
97
98
2
8
10
16
18
24
25
37
48
51
55
58
79
94
59
61
64
67
70
76
1
7
9
15
17
23
63
66
69
75
26
47
56
80
46
57
78
96
95
27
35
60
77
89
91
AC0/ACB0
AC1/ACB1
AC2/ACB2
CVBS0/AY0
CVBS1/AY1
CVBS2/AY2
CVBS3/ACR0
CVBS4/ACR1
CVBS5/ACR2
CBMID
CRMID
CGMID
IICA3/SDA
SCANB/SCL
VDT0
VDT1
VDT2
VDT3
VDT4
VDT5
VDT6
VDT7
VCLK
XTALI
XTALO
XCLK2MC
RSTB
CPUINT/SCANST
PWM
VBIVALID/XbusRD
FIELD/XbusWR
RL
UD
STV1
STV2
GOE
GCLK
LP/OEH
POL/VCOM/HSO
STH1/HSO
STH2/DE
CPH1/LLCK1
CPH2/LLCK2
CPH3/LLCK3
IOB
IOG
IOR
RSET
COMP
VREFIN
VREFOUT
FIB1
VREF
NC1
NC2
AGNDB
AGNDB
AGNDG
AGNDG
AGNDR
AGNDR
GND
GND
GND
GND
GND
GND
GND
GND
AVSSD
DVSS
AVSS33B
AVSS33G
AVSS33R
AVSS
AVDDB
AVDDB
AVDDG
AVDDG
AVDDR
AVDDR
AVDD33B
AVDD33G
AVDD33R
AVDD
VDD33
VDD33
VDD33
VD33
VDD25
VDD25
VDD25
DPLLVC25
DPLLGND
VDD25
VDD33
DVDD
AVDD33
VDD25
VD33
1RP4 33
1 8
2 7
3 6
4 5
VDD22
1C1
22P
R24 1M 12
STV2
R65 33012
1RP1 33
1 8
2 7
3 6
4 5
S_C
VCOMO
R46
10K
D8
1N5819
2 1
C103
470P
C85 1uF
3VD3
R42
10K
5VD
R44
1K
D4
BAT54S
2
3
1
C87
0.1uF
-15V
-10V
+
C91
10u/16V
L17 10uH
C82
4.7uF/25V
C90 1uF
VCOMO
R45
8.2K
-15V
VR2
VR50K
1 2
3
R48
10K C94
0.1uF
D5
BAT54S
2
3
1C86 1uF
R50
20K
-15V
C99
47uF/10V
C93
0.1uF
D7
BAT54S
2
3
1
R54
4.7K
U5
AAT1102
1
2
3
4 5
6
7
8
EO
IN
SHDN
GND SW
VDD
FREQ
SS
C95
0.1uF
D2
16V
C100
47uF/16V
R51
51k
D6
BAT54S
2
3
1
C89 1uF
5VD
+
C97
47uF/10V
C101
0.1uF
R43
33
+15V
C102
27nF
VCOM
R47
10K
R41
22K
R53
10k
U4 78L05
3
21
4GND
VOUTVIN
TAB
VGOFF
3VD3
R52
150K
R49
5.6K
C81
47uF/10V
C104
18P
D3
15V
C98
0.1uF
C83
4.7uF/25V
O/P A
-I/P A
+I/P A
GND+I/P B
-I/P B
O/P B
V+
U3
NJM3414AM
1
2
3
4 5
6
7
8
+
C84
10uF/16V
7VD5
L14 2.7uH
0805
C80
0.1uF
L15 5.4uH
C96
0.1u
VR1
VR50K
1 2
3
+
C92
10uF/16V
C88
0.1uF
3-7
SC
GND
VDD33
KEY
VDD33
VG
C74
0.1uF SPR-
RESET_T
R56
4K7
STV2
VB
L10
10uH IRON(1206)
SY
J1
CON_20-A
18
17
16
14
13
12
11
10
9
8
7
6
5
4
3
2
1
19
20
15
3.3V_T100
3.3V-TFT
GND5
GND4
SC
GND3
SY
GND2
SCL
SDA
REST
KEY
GND1
L-
L+
R-
R+
3.3V_AAT1102
TFT5V
CVBS_IN
+
C70
10u/25V
VGOFF
GND
GNDD
CKV
3VD3
VGL
GNDD
SCLVR
SPR+
GND
+
C58
10u/16V
-15V
SDA
GND
JP3
D070L001-A01(Panel30Pin)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
GND
STH2
3.3V
U/D
+15V
5VD
R57 10K1 2
CVBS
VCOM
GNDD
5VD
L11
FB 10R(0603)
OEH
STH1R55
4K7
OEV
CPH3
SPL+
C71
100n
CPH2
CPH1
L16
FB 10R
SPL-
L13 10uH
L12
10uH IRON(1206)
L/R
+
C73
4.7uF/25V
VB
R11
1M
Q3
2N3904
2
31
R36
1M
R13
10K
C76
0.1uF
R9
39K
IOB
R26
39K
VG
7VD5
+7.5V
C75
0.1uF R35
430
C52
1uF
C60
0.1uF
C79
100pF
C77
1uF
IOR
+
C47
47uF/16V
+
C53
10uF/10V
+7.5V
BIAS
IOG
R27
430
R12
75
R28
1M
L8 10uH
1206
Q2
2N3904
2
31
R40
100
VR
C49
0.1uFR10
430
C59
0.1uF
BIAS
Q1
2N3904
2
31
R31
75
C48
0.1uF
C69
100pF
C63
1uF
R32
10K
R39
10K
+
C78
10uF/10V
R14
100
R34
39K
R38
75
C56
100pF
R33
100
BIAS
+7.5V
+
C66
10uF/10V
3-8
VDD33
C30
0.1uF
AVDD33
C14
0.1uF
C3
0.1uF
C7
0.1uF
C29
0.1uF
C13
0.1uF
+
C11
100uF/6.3V
R3 20K
C19
0.1uF
C17
0.1uF
C15
0.1uF
C8
0.1uF
C32
0.1uF
C2
0.1uF
C27
0.1uF
C4
0.1uF
C12
0.1uF
C31
0.1uF
C18
0.1uF
C28
0.1uF
C6
0.1uF
+
C1
100uF/6.3V
C5
0.1uF
C16
0.1uF
+
C24
47uF/16V
+7.5V BIAS
+
C26
100uF/6.3V
C20
0.1uF
R4
10K
L4 10uH
1206
L3 10uH
1206
+
C43
47uF/6.3V
C41
0.1uF
+2.5V
VDD33
VDD22
R19
4.7K
+3.3V
R18
4.7K
+
C40
47uF/10V
C39
0.1uF
CBMID
C33
0.1uF
+
C36
47uF/10V
R23
1K
CGMID
D1
IN5819
12
VDD33
C35
0.1uF
3.3V
R22
1K
AVDD33
+
C34
47uF/10V
L5 FB
1206
L6 10uH
1206
R16
2.7K(8.2K)
SW4SW1
R15
1.2K(3.9K)
SW2
R17
4.7K(24K)
KEY
SW3
3-9
C51
330pF
R1 0
U1
CM1117SCM223 2.5V
PCBCOMPONENT_1
23
1
4
OUTIN
GND
TAB
COMP
C50
680pF
SC
+
C10
47uF/6.3V
S_C
R2
75
+2.5V
AV
R37
1K
R7 0
JP1
1
2
C72
0.1uF
C9
1uF
C22
680pF
C42
104
R8
75
SPL+
R6
75
C38
330pF
CVBS
SPR+
C21
104
SPR-
SPL-
RSET
R5 0
S_Y
C23
330pF
C25
104
VDD33
JP2
1
2
AVDD33L1 2.7uH
0603
SY
L2 2.7uH
0603
L9 2.7uH
0603
C37
680pF
3-10
LCD P.C. BOARD
( TOP VIEW )
( BOTTOM VIEW )
3-11
ELECTRICAL TROUBLE SHOOTING GUIDE
1. Power (DC-DC Converter) Circuit
A.
NO POWER ON
by ADAPTOR
Replace
ADAPTOR
Is ADAPTOR
OUT 9.5V.
Is D106 OK?
Is F101 OK.
NO
NO
NO
NO
Replace F101
Replace D 106
Replac F10
YES
YES
YES
YES
Is F10 OK.
YES
A
NO POWER ON
by BATTERY
Replace BATTERYIs BATTERY OK?
A
NO
YES
YES
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