PLASMA TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : PP11K MODEL : 42PT350R 42PT350R-TD 42PT351R 42PT351R-TC North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com Internal Use Only Printed in Korea P/NO : MFL67002503 (1102-REV00)
Repair and Service Manual Service manual for Chassis_pp11k
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
PLASMA TVSERVICE MANUAL
CAUTIONBEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PP11K
MODEL : 42PT350R 42PT350R-TD42PT351R 42PT351R-TC
North/Latin America http://aic.lgservice.comEurope/Africa http://eic.lgservice.comAsia/Oceania http://biz.lgservice.com
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by inthe Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual toprevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during theservicing of a receiver whose chassis is not isolated from the ACpower line. Use a transformer of adequate power rating as thisprotects the technician from accidents resulting in personal injuryfrom electrical shocks.
It will also protect the receiver and it's components from beingdamaged by accidental shorts of the circuitry that may beinadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this monitor is blown, replace itwith the specified.
When replacing a high wattage resistor (Oxide Metal FilmResistor, over 1W), keep the resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Due to high vacuum and large surface area of picture tube,extreme care should be used in handling the Picture Tube.Do not lift the Picture tube by it's Neck.
Leakage Current Cold Check(Antenna Cold Check)With the instrument AC plug removed from AC source, connectan electrical jumper across the two AC plug prongs. Place theAC switch in the on position, connect one lead of ohm-meter tothe AC plug prongs tied together and touch other ohm-meterlead in turn to each exposed metallic parts such as antennaterminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, themeasured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis thereading must be infinite.An other abnormality exists that must be corrected before thereceiver is returned to the customer.
Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet.Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitorbetween a known good earth ground (Water Pipe, Conduit, etc.)and the exposed metallic parts.Measure the AC voltage across the resistor using AC voltmeterwith 1000 ohms/volt or more sensitivity.Reverse plug the AC cord into the AC outlet and repeat ACvoltage measurements for each exposed metallic part. Anyvoltage measured must not exceed 0.75 volt RMS which iscorresponds to 0.5mA.In case any measurement is out of the limits specified, there ispossibility of shock hazard and the set must be checked andrepaired before it is returned to the customer.
NOTE : Specifications and others are subject to change without notice for improvement.
V Application RangeThis spec is applied to PDP TV used PP11K Chassis.
V SpecificationEach part is tested as below without special appointment.(1) Temperature : 25 °C ± 5 °C (77 °F ± 9 °F), CST : 40 ± 5(2) Relative Humidity: 65 % ± 10 %(3) Power Voltage: Standard Input voltage (100 V - 240 V ~, 50 / 60 Hz)
* Standard Voltage of each product is marked by models.(4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with
SBOM.(5) The receiver must be operated for about 20 minutes prior to the adjustment.
V Test Method(1) Performance : LGE TV test method followed.(2) Demanded other specification
Safety : CE, IEC specificationEMC : CE, IEC
V Module Specification(1) 42” -2D HD
42PT350R-TA
42PT351R-TC
NON-EU LG
Model Name Market Place Brand
Model Name
42PT350R-TA
42PT351R-TC
Remark
Safety : IEC/ EN60065, EMI : CISPR13
Market
NON-EU
Appliance
TEST
No Item Specification Remark
1 Display Screen Device 106 cm (42 inch) wide Color Display Module PDP
1. Application RangeThis spec sheet is applied to all of the PP11K chassis.
2. Specification(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolationtransformer will help protect test instrument.
(2) Adjustment must be done in the correct order.(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65 % ± 10 % of relativehumidity if there is no specific designation.
(4) The input voltage of the receiver must keep 100 V~ 240 V, 50 / 60 Hz.
(5) The receiver must be operated for about 5 minutes prior tothe adjustment when module is in the circumstance of over15 °C- In case of keeping module is in the circumstance of 0 °C,
it should be placed in the circumstance of above 15 °Cfor 2 hours
- In case of keeping module is in the circumstance of below-20 °C, it should be placed in the circumstance of above15 °C for 3 hours,.
3. S/W Program Download
3-1. ProfileThis is for downloading the s/w to the flash memory of theIC402
3-4. Connection Condition(1) IC name and circuit number : Flash Memory and IC402(2) Use voltage : 3.3V (5 pin)(3) SCL : 15 pin(4) SDA : 12 pin(5) Tact time : about 2min and 30seconds
3) Click the Config button and Change speedE2PROM Device setting : over the 350Khz
4) Read and write bin fileClick “(1)Read” tab, and then load downloadfile(XXXX.bin) by clicking “Read”.
5) Click “Auto(2)” tab and set as below6) Click “Run(3)”.7) After downloading, check “OK(4)” message.
3-6. Download Method (By using USB Memory Stick)
* Caution- Using ‘power on’ button of the control R/C, power on TV.- USB file (EPK) version must be bigger than downloaded
version of main B/D.- It should be only one SW binary file in USB Stick
(1) Using ‘Power ON’ button of the control R/C, Power on TV.(2) Insert the USB memory stick to the SET.(3) Display USB loding message then, push the ‘Exit’ Key of
control R/C(4) Push the ‘MENU’ Key and move the cusor ‘OPTION’ of
OSD ( Fig. 1)* Caution : Don’t push the ‘OK’ key.Just cusor is on the
‘OPTION’ menu.
(5) Push the “7” key of control R/C continuously.Then, Display “TV Software Update” Pop-up menu. (Fig. 2)
(6) Select SW file (XXXX.bin) you want, push the “OK” Key.(7) S/W download process is excuted automatically.
4-1. Option Adjustment Following BOM Tool OptionArea OptionOption 1Option 2Option 3(Available for EU & Non EU model)
* Profile: Must be changed the option value because beingdifferent with some setting value depend on module,inch and market
* Equipment : Adjustment Remote Controller
(1) Push the IN-START key in the Adjust R/C.(2) Enter Password number. The value of Password is “0 0 0
0”.
(3) Input the Option Number that was specified in the BOM,into the Shipping area.
(4) Select “Tool Option” by using D/E(CH+/-) key, and pressthe number key(0~9) consecutivelyex) If the value of Tool Option1 is 4, input the data using
number key “4” (Fig. 3)
(5) if it is EU model ( such as 42/50PJ**R-ZA ), select “Areaoption” by using D/E(CH+/-) key , and press the numberkey(0~9) consecutively.ex) If the value of Area Option is 40, input the data using
number key “40” (Fig. 3)
Caution- Don’t Push “IN-STOP” key after PCB assembly
adjustment.
* PP01A/B/C Tool option
(6) EDID D/L Method- After software D/L or PCBA manufacturing, you can
download EDID Data.- When you adjust Tool Option, H6 Model EDID download
process is executed automatically
* If the model don’t have HDMI 3, HDMI 3 will be disappearedat OSD Window.
[Caution]- When you adjust tool option, don’t connect HDMI or D-
sub cable. - If you connect some cable, EDID D/L process will be
failed.
(7) Adjustment method Before PCBA check, have to change the Tool option andArea option
[ About PDPAfter done all adjustments, Press IN-START button andcompare Tool option and Area option value with its BOM, ifit is correctly same then Change “RF mode” and thenunplug the AC cable.If it is not same, then correct it same with BOM and unplugAC cable. For correct it to the model’s module from factory JIGmodel.
[ Don’t push The IN-STOP KEY after completing the functioninspection.
5. EDID(The Extended DisplayIdentification Data)
Caution - Never Use the cable( HDMI or D-sub cable) for EDID
Writing. - Automatically PP01A/B/C Model EDID download process
Many electrical and mechanical parts in this chassis have special safety-related characteristics. Theseparts are identified by in the Schematic Diagram and EXPLODED VIEW. It is essential that these special safety parts should be replaced with the same components asrecommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
A10
A9
LV1
A12
A21
A2
A4
USB DOWN STREAM
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
INPUT
HPD_MST_2
+5V_HDMI_1
R110100
DDC_
SCL2
R109100
+5V_HDMI_1
R118100
CEC
IC103MAX3232CDR
3C1-
2V+
4C2+
1C1+
6V-
5C2-
7DOUT2
8RIN2
9ROUT2
10DIN2
11DIN1
12ROUT1
13RIN1
14DOUT1
15GND
16VCC
D101
KDS184S
A1
C
A2
+5V_HDMI_3
Q101
2SC3875SRT1C3904-T112
E
B
C
R16210K
SIDE
_HDM
I
DDC_
SCL1
+5V_HDMI_2
+5V_ST
+5V_HDMI_2
R160100
SIDE_HDMI
D102KDS184S
SIDE_HDMI
A1
C
A2
R161100
SIDE_HDMI
CEC
+3.3V_MPLL
+5V_ST
DDC_
SCL3
+5V_ST
DDC_
SDA1
D100
KDS184S
A1
C
A2
DDC_
SDA2
DDC_
SDA3
R10310K
R1021K
R1224.7K
R114100
R115100
R11610K
R1011K
BOT_HDMI R1294.7K
R10410K
BOT_HDMI
HPD_MST_1
R11910K
R16310K
SIDE
_HDM
I
+5V_ST
R117100
Q100
2SC3875S
BOT_HDMIRT1C3904-T112
E
B
C
TXD
R1204.7K
C103
68pF
C104
68pF
R111
75
R128
68
R113
75
R112
75
R127
68
R132
10K
R1214.7K
C1050.1uF
C1060.1uF
C107
0.1uF
C1080.1uF
JK111SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
R15912K
R14575
R147220K
R15210K
R146220K
R15310K
R15812K
JK110SPG09-DB-010
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IR_OUT
C1100.01uF25VSIDE_HDMI
C1010.01uF25V
C1090.01uF25V
C1000.01uF
25V
C1020.01uF25V
R124220K
R12510K
R13112K
R123220K
R13012K
R12610K
R5390 HOTEL
R5351K
NONE_HOTELR529
470K
MUTE_LINE
MNT_LOUTC11410uF16V
NONE_HOTEL
SPK_R-_HOTEL
C11110uF16V
SPK_R+_HOTEL
MNT_ROUT
R5400HOTEL
MUTE_LINE
R528470K
R5320 HOTEL
Q5022SC3875S(ALY)E
B
C
Q5042SC3875S(ALY)E
B
C
R5331K
NONE_HOTEL
R51412K
R50510K
R50875
R50610K
R503220K
R51512K
R504220K
R133100
R134100
R13510K
R13610K
JK100YKF45-7058V
BOT_HDMI
14
13
5
20
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
JK101
YKF45-7054V
14
13
5
20
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
JK106PPJ235-01
4A
5A
3A
4B
3C
4C
5C
+5V_MULTI
JK112
KJA-UB-4-0004 1
23
45
R1001K
SIDE_HDMI
HPD_MST_3Q102
2SC3875SSIDE_HDMI
RT1C3904-T112E
B
C
CEC
JK102
KJA-ET-0-0032
SIDE_HDMI
14NC
13CEC
5DATA1_SHIELD
20
JACK_GND
12CLK-
11CLK_SHIELD
2DATA2_SHIELD
19HPD
18+5V_POWER
10CLK+
4DATA1+
1
DATA2+
17DDC/CEC_GND
9DATA0-
8DATA0_SHIELD
3DATA2-
16SDA
7DATA0+
6DATA1-
15SCL
R10510K
SIDE_HDMI
+5V_HDMI_3
JK103PEJ027-01
6B
7B
5
4
7A
6A
3
R142 100NONE_RGB
R143 100NONE_RGB
R144 100NONE_RGB
R150 100NONE_RGB
R1805.1
R1815.1
R14810K
R17410K
R17912K
R17812K
R15412K
R16575
R13775
R169220K
R13875
R16675
R17510K
R13975
R140
220K
R16775
R15512K
R168220K
R14910KR141
220K
JK107
PPJ239-01
5J
6J
4J
7K
5K
7L
5L
5M
4N [RD2]CONTACT
5N [RD2]O-SPRING_2
6N [RD2]E-LUG
6D [GN1]E-LUG
5D [GN1]O-SPRING
4D [GN1]CONTACT
7E [BL1]E-LUG-S
5E [BL1]O-SPRING
7F [RD1]E-LUG-S
5F [RD1]O-SPRING_1
4F [RD1]CONTACT_1
5G [WH1]O-SPRING
4H [RD1]CONTACT_2
5H [RD1]O-SPRING_2
6H [RD1]E-LUG
IC101CAT24C02WI-GT3
3A2
2A1
4VSS
1A0
5SDA
6SCL
7WP
8VCC
IC102CAT24C02WI-GT3
3A2
2A1
4VSS
1A0
5SDA
6SCL
7WP
8VCC
IC100CAT24C02WI-GT3
3A2
2A1
4VSS
1A0
5SDA
6SCL
7WP
8VCC
CEC
D10330V
MMBD301LT1G
D10410V
BSS83Q103
SBD
GR106
56K
CEC_C
+3.3V_MPLL
EYE_SDA
EYE_SCLR543 100READY
R544 100READY
JK116PPJ241-02
3 [WH]L_OUT
5 [WH]GND
4 [RD]R_OUT
6 FIX_TER
COMP2_PR
TMDS1_RXC-
TMDS1_RX0+
TMDS1_RX2+
TMDS1_RXC+
TMDS1_RX0-
DDC_SDA2
TMDS2_RX2+
DDC_SCL2
TMDS1_RX2-
TMDS2_RX1+
TMDS2_RX1-
DDC_SDA1
TMDS2_RXC+
DDC_SCL1
TMDS2_RX2-
RXD
TMDS1_RX1-
TMDS2_RX0-
TMDS2_RXC-
TMDS1_RX1+
TMDS2_RX0+
DSUB_SCL
ROM_SDA
DSUB_SDA
PC_HS
ROM_SCL
PC_B
PC_VS
PC_G
PC_R
ISP_RX
SIDE_VIN
SIDE_LIN
SIDE_RIN
PC_AUD_R
PC_AUD_L
AUDIO_R
SC1_VIN
SC1_RIN
SC1_LIN
USB_DN
USB_DP
TMDS3_RX2-
DDC_SDA3
TMDS3_RX1-
TMDS3_RX0+
TMDS3_RXC-
TMDS3_RX0-
DDC_SCL3
TMDS3_RX2+
TMDS3_RXC+
TMDS3_RX1+
ROM_SDA
ROM_SCL
DSUB_SDA
DSUB_SCL
COMP1_PR
COMP2_R
COMP1_Y
COMP1_PB
COMP2_PB
COMP1_R
COMP2_Y
COMP2_L
COMP1_L
D1155.6V
D1165.6V
D1135.6V
D1145.6V
D126
5.6V
D127
5.6V
D1255.6V
D1245.6V
D1085.6V
D1055.6V
JK113
PPJ233-01
4A [YL]O-SPRING
5A [YL]E-LUG
3A [YL]CONTACT
4B [WH]C-LUG
5C [RD]E-LUG
4C [RD]O-SPRING
3C [RD]CONTACT
1 4INPUT
[ Slim Jack : 6630TGA004Q ] [ Slim Jack : 6630G00001E ][ Slim Jack : EAG59023302 ]
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
1.Check Control Board. LED on. Crystal(X400). 1.8V, 3.3V,1.2V 5V FET. Rom update
2.Replace Control B/D
<SVC R/C & Pattern>
CheckSound
SoundOK
Y CloseY
Move No Picture/No sound
Section
Check LVDS Cable
ReplaceMain B/D
Normal
N
Y
N
Move Power problem
Section
Normal Normal
Move Power problem
Section
N
-VY VSC VZB
First of all, Check whether all of cable between board was inserted properly or not.(Main B/D↔ Power B/D, Power B/D↔ Y-sus B/D,Y-Sus B/D ↔Z-Sus B/D,LVDS Cable,Speaker Cable,IR B/D Cable,,,)
Check whether Problem happenin same output of other equipments or not.(By connecting same output cable of other equipment)→ DVD Player ,Set-Top-Box, different maker TV etc
Y
NormalSound?
N
Check Audio ICReplace Main B/D
8
Explain customer thatCause is RF Signal’s problem (Case 1)Cause is Equipment’s problem (case 2)
SVC Bulletin?
ApplySVC Bulletin
(S/W Upgrade etc)
NormalSound?
YClose
Y
NN
Making
Revision PDP TV Symptom
D. General Function ProblemRemote control
Y
N
Repair Process
9
1. Remote control (R/C) operating error
Check R/C itself Operation
Normaloperating?
Normaloperating?
Y
Close
Replace R/C
If R/C operate,Explain the customer cause is interferencefrom light in room.
Check R/C OperatingWhen turn off light
in room
Check & ReplaceBaterry of R/C
Check & RepairCable connectionConnector solder
Normaloperating?
Check B+ 5VOn Main B/D
NormalVoltage?
Close
N
N
Check 5v on Power B/DReplace Power B/D or
Replace Main B/D(Power B/D don’t have problem)
Check IROutput signal
NormalSignal?
N
Y
Repair/ReplaceIR B/D
N
ReplaceMain B/D
Y
Y
You can see 20 types patterns by using TILT Key on SVC Remote controller (except Old model)< CHECK Item >1. Dead pixel 2.Image sticking 3.Mal discharge 4.Module defect (V-Line/Bar, H-Line/Bar,,,)5. In case of no picture, you can judge defect cause (Module or Main B/D)
- If patterns appear, defect cause is Main B/D
Tilt Key
Making
Revision PDP TV
Symptom A. Picture ProblemCheck Module pattern by Tilt key
Repair Process-Reference data
Item
A1
Making
Revision PDP TV Symptom
A. Picture ProblemControl Board Checking Method(42G2/50G2)
Repair Process-Reference data
A13
① Check input voltage(5V of P101) on Control B/D
② Check LED On
③ If LED light doesn’t appear, check Crystal X101 output
④ Check 3.3V, 5V,1.8V FET
⑤ Check MCM at VS_DA by using Multi meter
Checking Method
③ Check Crystal(X101)
3.3 V
5 V
1.8 V
② Check LED On ① Check Input voltage
GND
④ Check Crystal(X101)
Check oscillation of Crystal(Normal: 100 MHZ, 1.6v)
MCM Check point(+)VS_DA / (-) GND
(Normal: 3.3V )
⑤ Check MCM
Making
Revision PDP TV Symptom
A. Picture ProblemPDP Module Rom Ver. Checking method
Repair Process-Reference data
A15
Check by using Rom Label on control board
Rom ver. Label
Check by using SVC RemoconPress “In-start”→Press” 0000”→ Select Panel option → Pop up Module Rom ver.
※Refer to the Module Rom upgrade manual for Rom upgrade.
USB Type Jig
Making
Revision PDP TV Symptom
A. Picture ProblemDefect type cause by PDP Module
Repair Process-Reference data
A19
1. Check connection(CTRL B/D, X B/D)
2. Check CTRL B/D3. Replace CTRL B/D
Many irregular vertical lines
1. Check connection(Y-Sus B/D ↔Panel)
2. Check Y-Sus B/D3. Replace Y-Sus B/D
Horizontal Line or Bar
1. Check connection(CTRL B/D, X B/D)
2. Check CTRL B/D3. Replace CTRL B/D
Vertical lines or Bar
1. Check connection(CTRL B/D, X B/D)
2. Check CTRL B/D3. Replace CTRL B/D
Regular vertical lines
To actiondefects descriptionSymptom picture
First of all, Check whether all of cable between board was inserted properly or not.Next, Check whether there is foreign material on connector.
Making
Revision PDP TV Symptom
A. Picture ProblemConnector Type on PDP Module
Repair Process-Reference data
A20
96 Out Put
COF Type
1. Check foreign & Connection status2. Check bad soldering
on Chip resistance
Defect symptom
192 Out Put
TCP Type
TCP (Tape Carrier Package) is filmfor IC connect with Electrode pattern(Direct Bonding) on X B/D
FPC Type
Connector to connect betweenElectrode PAD Of PANEL andY Drive B/D,Z-Sus B/D