LG DP-171, DP-172, DP-173 Service manual

1-1
CONTENTS
SECTION 1 . . . . SUMMARY
SECTION 2 . . . . EXPLODED VIEWS
SECTION 3 . . . . ELECTRICAL
SECTION 4 . . . . REPLACEMENT PARTS LIST
1-2
SECTION 1
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 WILL NOT ONLY VOID THE WARRANTY, BUTMA YLEAD 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 THATALL COMPONENTS ARE POSITIONED IN SUCH AWAY 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 ALLLOOSE 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, ANTENNATERMINALS. 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-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 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 CUSTOMERS 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 ONLY RECOMMENDED FACTORY REPLACEMENT 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
2-1
SECTION 2
EXPLODED VIEWS
CONTENTS
EXPLODED VIEWS .....................................................................................................................................2-2
1. CABINET AND MAIN FRAME SECTION ..................................................................................................2-2
2. PACKING ACCESSORY SECTION...........................................................................................................2-3
2-22-2
EXPLODED VIEWS
1. 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
2-3
2. PACKING ACCESSORY SECTION
834 CABLE, CIJAR JACK
806 PLUG ASS'Y
833 ADAPTER
900 REMOTE CONTROL
808 BATTERY
801 OWNER'S MANUAL
802A BOX INNER
804 PACKING SHEET
802 BOX CARTON
803 PACKING
3-1
SECTION 3
ELECTRICAL
CONTENTS
LCD PART ................................................................................................................3-2
LCD TROUBLE SHOOTING GUIDE .....................................................................3-3
LCD BLOCK DIAGRAM........................................................................................3-5
LCD CIRCUIT DIAGRAMS ....................................................................................3-7
LCD PRINTED CIRCUIT DIAGRAMS....................................................................3-9
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
LCD BLOCK DIAGRAM
3-5 3-6
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
3-7 3-8
LCD CIRCUIT DIAGRAMS
82.6ma
126ma
AV
SC
CVBS
S_C
SY S_Y
STH2
U/D
SCL
STH1
IOB
CPH1
L/R
CKV
VCOMO
RSET
AVDD33
S_Y
STV2
OEH
SDA
AV
IOG
OEV
STV1
IOR
S_C
RESET_T
VCOM
5VD
-10V
VCOMO
VB
VR
IOB
7VD5
IOR
IOG
VG
5VD7VD5
+15V
VCC_3V3
-10V
SPR+
GND
SPR+
GND
SPL-
RESET_T
SPR-
GND
SDA
SY
VCC_3V3
SPL+
SPL+
GND
GND
SPR-
SPL-
CVBS
SCL
SC
CPH1
CKV
L/R
STV1
STV2
AVCC
U/D
OEH
DVCC
OEV
VB
STH1
VR
VG
+15V
STH2
VCOM
DVCC
VCOM
-10V
VCC_3V3
VDD22
AVDD33
VDD
33
VDD
33
VDD
22AVDD33 VDD33
VDD
33
VDD
22
VDD
33
AVDD
33
VDD
22
+7.
5V BIAS
+7.
5V
BI
AS
+7.
5V
BI
AS
+7.
5V
BI
AS
5
VD
R29 10K
R22 100
R31 39K
R11
33
12
C2
0.
1uF
D4
BAT
54S
3
2
1
C27
0.
1uF
R14 1M
12
+
C89 10uF/16V
C16
680pF
C53 100pF
C51
0.
1uF
R43
150k
Y1
27M
HZ
R45 10K
C64
0.
1uF
RP3
82
3 6 2 7 1 8 4 5
L7 FB
D1
IN
5819
12
C25
4.7uF/
16V
R46
51K
C28
0.
1uF
R16 1K
J
P3
1
2
JP4
0.8-20P
IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
R35 10K
C71
0.
1uF
L12
5.
4uH
+
C26
105
+C38
47uF/6.
3V
R3 10K
L4
2.
7uH
C84
22uF/
16V
R6 75
C66
0.
1uF
R47 10K
C1 47nF
C57
0.
1uF
C63
0.
1uF
R15
4.
7K
12
+
C34
10uF/
10V
C50
0.
1uF
J
P2
1
2
R21 10K
R25 1M
C21
0.
1uF
+
C94
4.7uF/
25V
R8 1K
R4
4.
7K
C3
0.
1uF
C93
0.
1u
U5
3414
1 2 3 4 5
6
7
8
A OUT A- IN A+ IN GND B+ IN
B- IN
B OUT
V+
D7
BAT
54S
3
2
1
C78
0.
1uF
+
C8
10uF/
10V
C55
1uF
C31
0.
1uF
C59
1uF
R24 430
+
C35
47uF/6.
3V
C54
1uF
C92
470p
R1 75
C11
390pF
L11 10uH
C40
0.
1uF
C65
0.
1uF
C33 1uF
R12
R
R41 20K
+
C60
47uF/6.
3V
C13
0.
1uF
C70 1uF
+
C44
10uF/
10V
+
C90
10uF/
16V
C15 47nF
C85
0.
1u
C62
0.
1uF
C36
0.
1uF
C88
273
C69
0.
1uF
+
C9
10uF/
10V
R23 39K
C6
330pF
D3
10V
C86
22uF/
16V
C41
0.
1uF
C75
0.
1uF
C20 22P
L8
10uHL10
10uH
C67
0.
1uFR33
1M
R42
10K
R7 1K
U1
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
3
3
38 39 40 41 42 43 44 45 49 50 52 53 54
62 65 68
71 72
73 74 99
100
97
9
8
281
0161824
253748515558799
4
5
9
6
1
6467707
6
179
1
51723636669
7
5
264756804657789
6
9
5
2
7
3
5
6
0
7
7
8
9
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 /SC ANST
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
VD3
3
D2
17V
R28 100
RP1
82
4 5 3 6 2 7 1 8
C74
0.
1uF
R18 430
+
C32
47uF/6.
3V
+
C72
10uF/
10V
Q3 2N
3904
1
32
R5
4.
7K
C5
680pF
D5
BAT
54S
3
2
1
R44 20K
C52
0.
1uF
U4
AAT11
02
1 2 3 4 5
6
7
8
EO IN SH
DN
GND SW
VDD
FREQ
SS
R36 100
+
C73
47uF/6.
3V
U2
CM1117SCM223 2.
5V
3 2
1
OUT IN
GND
R30 510
C58
1uF
C43 1uF
R13
R
C56
0.
1uF
RP2
82
4 5 3 6 2 7 1 8
JP1
CON
26
26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
AVSS AVDD VC VB VA DVSS DVDD CPH1 CPH2 CPH3 STHR STHL OEH Q1H LR VCOM VCOM OEV U/D CKV STVL STVR VGH VGL VCC G
ND
C91
18p
R10
33
12
R27 10K
R38
2K
C29
0.
1uF
+
C39
22uF/
16V
R40 10K
C12
560pF
Q2 2N
3904
1
23
C79 100pF
R2
20K
R37 8.
2K
+
C47
47uF/6.
3V
R26 150
C45
4.7uF/
25V
D6
BAT
54S
3
2
1
C48
0.
1uF
+
C22
22uF/
16V
R39
150R(10
K)
U6
MP
1540
5
1
4
2
3
IN
SW
EN
GND
FB
U3 78L
05
2
13
GND
VOUTVIN
L2
2.
7uH
+
C30
47uF/6.
3V
Q1 2N
3904
1
32
R32 430
C82
0.
1uF
R19 1M
R34 150
+
C7 47uF/
10V
VR1 10K
1 3
2
L6 FB100
C68
0.
1uF
C14
0.
1uF
C17
330pF
C87
10uF/16
V
D8
5819
1 2
C81 47uF/
10V
C77
0.
1uF
C23
0.
1uF
R9 75
R17 39K
+
C4 100uF/6.
3V
C37
0.
1uF
R20 150
L1
FB
C76
0.
1uF
C83
22uF/
16V
C61
0.
1uF
L3
2.
7uH
L9
10uH
C80
0.
1uF
C42 100pF
C19 22
PF
C24
4.7uF/
16V
C46
4.7uF/
25V
L5 2.
7uH
C49
0.
1uF
C18
22
PF
C10 47nF
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 ST
3-9 3-10
LCD PRINTED CIRCUIT DIAGRAMS
1. MAIN P.C. BOARD (TOP VIEW)
( TOP VIEW ) ( BOTTOM VIEW )
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