LG 37LP1DA-ZA Service Manual
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LG 37LP1DA-ZA Service Manual

LG 37LP1DA-ZA Service Manual

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LCD TV

SERVICE MANUAL

CHASSIS : ML-03JA
MODEL : 37LP1DA-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 37LP1DA-ZA

  • Page 1: Contents

    LCD TV SERVICE MANUAL CHASSIS : ML-03JA MODEL : 37LP1DA-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................6 TIMING CHART..................11 ADJUSTMENT INSTRUCTION ...............12 SVC REMOCON ..................19 TROUBLE SHOOTING ................20 BLOCK DIAGRAM...................30 WIRING DIAGRAM ..................32 EXPLODED VIEW .................. 33 EXPLODED VIEW PARTS LIST ..............34 REPLACEMENT PARTS LIST ............... 35 SVC. SHEET ....................- 2 -...

  • Page 3: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or...
  • Page 4 IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.

  • Page 5: Specification

    NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range 3. Test and Inspection Method This specification is applied to ML-03JC chassis. 3.1 Capacity : Follow LG electronics TV Testing Standard. 2. Requirement for Test 3.2 Another Requite Standard EMI : Following CE Standard(EN 55020)
  • Page 6 Operating Temperature Humidity : 50% (Temp : 40°C) Operating Humidity Storage Temperature Storage Humidity LCD Panel Model Name LG Philips LCD Feature TFT Active Matrix LCD panel Outline Dimension 877.0 x 516.8 x 55.5 [mm] Aspect Ratio Wide (16:9) Resolution...
  • Page 7 Item Specification Remark Unit 2 Carrier Dual BG, DK NICAM Dual BG, I, LL' DW(Double Window) Mode Enable MW(Multi Window) Mode Enable Film Mode Enable Progressive Scan Enable Motion Detection Enable Dolby Virtual Enable SRS WOW Enable Ez-pip Enable Power System PFC(power factor correction) &...
  • Page 8 < Table 2.> Scart Arrangement 1.(Full Scart) Signal Signal Level Impedance Audio Output B (right) 0.5 Vrms < 1 Audio Input B (right) 0.5 Vrms > 10 Audio Output A (left) 0.5 Vrms < 1 Ground (audio) Ground (blue) Audio input A (left) 0.5 Vrms >...
  • Page 9 < Table 3.> Scart Arrangement 2.(Half Scart) Signal Signal Level Impedance Audio Output B (right) 0.5 Vrms < 1 Audio Input B (right) 0.5 Vrms > 10 Audio Output A (left) 0.5 Vrms < 1 Ground (audio) Ground (blue) Audio input A (left) 0.5 Vrms >...

  • Page 10: Timing Chart

    TIMING CHART VIDEO SYNC Dot Clock Frequency Display Sync Total Sync Back Front H / V MODE Resolution Porch ( B ) Polarity [kHz]/[Hz] ( A ) [MHz] Period( E ) ( D ) Porch(F) H(Pixels) 25.175 31.468 640 x 350 V(Lines) 70.090 H(Pixels)

  • Page 11: Adjustment Instruction

    ADJUSTMENT INSTRUCTION 2.2.3 Operation status check 1. Scope of Application 2.2.3.1 Operation mode: Check designated This standard is applied to the 37" Wide I-DTV mode accurately operates. manufactured in the monitor factory or its equivalents. 2.2.3.2 Check of adjustment status and operation: Check the screen adjustment 2.
  • Page 12 *Check of OPTION DATA Setting (SVC MODE) - Explanation of SVC Menu EEPROM Option items Item Condition Remark Item Condition Remark Option0 OSD Lan 0 : Eng Only 200PR 0 : 100 Program 1 : 1 : 7 countries (7 countries in West Europe) 1 : 200 Program 2: 11 countries (West Europe + Northern Europe) China + Aus...
  • Page 13 1. Service Menu Overview If you press the menu button of remote control and the menu key of keypad till more 5 seconds simultaneously. Service Menu The service menu OSD will appear. This service menu contain the RGB, MSP, NSP menus and 3 optional RGB Menu RGB Menu menus that is Option 0,1,2.
  • Page 14 3. MSP Menu FM Prescale decides input signal level of FM audio signal. It is related to main Volume. MSP Menu Nicam Prescale decides input signal level of Nicam audio signal. FM Prescale FM Prescale Nicam Prescale Scart Prescale decides output signal level to speaker volume which is Nicam Prescale coming from SCART input.
  • Page 15 5. Option 0 Menu 200PR : In China, You have to change 200PR data to '1' because China has many channels in broadcast system. Option 0 Menu China+Aus : In China or Australia, you have to change China+Aus data 200PR 200PR to '1' because these two countries have different broadcast China+Aus...
  • Page 16 7. Option 2 Menu DownLoad : While downloading is performed for updating the software the main Micom should not communicate Option 2 Menu with other Ics therefore to cut off the communication between main Micom and other Ics we set the value DownLoad DownLoad of Download to '1'.
  • Page 17 9. X-Studio Menu X-Studio Version : It shows the programme version of X-studio. X-STUDIO Menu X-Studio Language : This field shows the X-studio OSD language. X-STUDIO Version X-STUDIO Version X-Studio ISP : This field shows that X-studio memory will be 1.18 1.18 ready for ISP after selecting this option and...

  • Page 18: Svc Remocon

    SVC REMOCON FUNTION REAMARK To turn the TV on or off POWER To turn the TV on automatically if the power is supplied to the TV. (Use the POWER ON POWER key to deactivate): It should be deactivated when delivered. To activate the mute function.

  • Page 19: Trouble Shooting

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  • Page 29: Block Diagram

    BLOCK DIAGRAM - 30 -...
  • Page 30 BLOCK DIAGRAM DESCRIPTION 1) RF/Analog mode: 4) Component mode: - Initially the signal is fed to the Analog Tuner through antenna - Initially the video signal is fed to the AN15865 switch IC and cable via RF splitter. Now, here the Audio and Video signals the audio signal is sent to the MSP4410 sound processor are separated and sent accordingly (i.e.

  • Page 31: Wiring Diagram

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  • Page 32: Exploded View

    - 33 -...

  • Page 33: Exploded View Parts List

    DESCRIPTION 3091TKE028L Cover Assembly, 37LP1DA-ZA BRAND . CABINET ASSY(C/SKD) 6304FLP291A LCD,Module-TFT, LC370W01-C6K1 DRIVER 37.0INCH 1366X768 500CD COLOR - - - - LG PHILIPS LCD 6304FLP360A LCD,Panel-TFT, LC370WX1-SL11 37INCH 1365X768 500CD COLOR 72% - 3809TKE026C Cover Assembly, 37LP10 . BACK COVER ASSY, 37LP1D-I(C/SKD) 3043TKK224C Base Assembly, 37LP1D-I .

  • Page 34: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN, CH : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit in the CQ : Polyestor RS : Metal Oxide Film P/No. means as follows; CE : Electrolytic RN : Metal Film CF : Fixed Film RH : CHIP, Metal Glazed(Chip)
  • Page 35 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C318 0CH3104K566 0805B104K500CT 100nF 10% 50 C606 0CH3104K566 0805B104K500CT 100nF 10% 50 C325 0CH3104K566 0805B104K500CT 100nF 10% 50 0CH2473K516 0805B473K500CT 47nF 10% 50V C326 0CH3103K516 C2012Y5P1H103KT 10nF 10% 50...
  • Page 36 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0CH3104K566 0805B104K500CT 100nF 10% 50 CIP13 0CH3104K566 0805B104K500CT 100nF 10% 50 0CH3104K566 0805B104K500CT 100nF 10% 50 CIP14 0CH3104K566 0805B104K500CT 100nF 10% 50 C900...
  • Page 37 0CH3103K516 C2012Y5P1H103KT 10nF 10% 50 0IZZ9H0110A 0IMMRMR027D MACRONIX TSOP 4 C100 0CH2473K516 0805B473K500CT 47nF 10% 50V ICS6 0IZZTSA114A INTEL 48P 37LP1DA-ZA PW FLA C101 0CH2473K516 0805B473K500CT 47nF 10% 50V IC500 0IPRPXI003A X98014L128-3.3Z 3TO3.6V - 8 C102 0CH2473K516 0805B473K500CT 47nF 10% 50V 0IPRPSG032B TEA5114A 9TO13.2V - - - DIP...
  • Page 38 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION ICF2 0IMMRSS037F K4S643232H-UC60 64MBIT 512K AR604 6210TCE002B HB-4M3216-121JT 120OHM 3.2X 0IMCRMN023A SDA6001 2.5VTO3.3V - - - MQ AR605 6210TCE002B HB-4M3216-121JT 120OHM 3.2X IC902...
  • Page 39 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION IC14 0IFA270000A 2N7000TA N-CHANNEL MOSFET 6 R129 0RH3301D622 MCR10EZHJ332 3.3KOHM 5% 1/8 IC15 0IFA270000A 2N7000TA N-CHANNEL MOSFET 6 R137 0RH1500D622 MCR10EZHJ151 150OHM 5% 1/8W...
  • Page 40 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W R943 0RH3301D622 MCR10EZHJ332 3.3KOHM 5% 1/8 0RH3301D622 MCR10EZHJ332 3.3KOHM 5% 1/8 R944 0RH3301D622 MCR10EZHJ332 3.3KOHM 5% 1/8 0RH3301D622 MCR10EZHJ332 3.3KOHM 5% 1/8...
  • Page 41 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W R171 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W RS61 0RH3301D622 MCR10EZHJ332 3.3KOHM 5% 1/8 R173 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W RS62...
  • Page 42 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W R752 0RH0222D622 MCR10EZHJ220 22OHM 5% 1/8W 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W R753 0RH0222D622 MCR10EZHJ220 22OHM 5% 1/8W 0RH1000D622 MCR10EZHJ101 100OHM 5% 1/8W...
  • Page 43 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION RF22 0RH0222D622 MCR10EZHJ220 22OHM 5% 1/8W R1272 0RD1000F609 RD-96T1J100R 100OHM 5% 1/6W RF23 0RH0222D622 MCR10EZHJ220 22OHM 5% 1/8W C1201 0CH3104K566 0805B104K500CT 100nF 10% 50 RF25...
  • Page 44 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1236 0RH0392D622 MCR10EZHJ390 39OHM 5% 1/8W C2104 0CH6102K406 C2012S2L1H102JT 1nF 5% 50V R1237 0RH4701D622 MCR10EZHJ472 4.7KOHM 5% 1/8 0CH3104K566 0805B104K500CT 100nF 10% 50 R1238 0RH1500D622 MCR10EZHJ151 150OHM 5% 1/8W...
  • Page 45 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C160 0CH6100K116 C2012C0G1H100DT 10pF 0.5PF 0CH3104K566 0805B104K500CT 100nF 10% 50 C161 0CH6100K116 C2012C0G1H100DT 10pF 0.5PF 0CH3104K566 0805B104K500CT 100nF 10% 50 C162 0CH6100K116 C2012C0G1H100DT 10pF 0.5PF...
  • Page 46 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R146 0RH3300D622 MCR10EZHJ331 330OHM 5% 1/8W AR306 0RJ0222C687 RCA86TRJ22R0 22OHM 5% 1/16W R147 0RH3300D622 MCR10EZHJ331 330OHM 5% 1/8W AR307 0RJ0222C687 RCA86TRJ22R0 22OHM 5% 1/16W...
  • Page 47 0IMCRSG010A ST3232CDR 3.0TO5.5 - SOP R/ R211 0RH0332D622 MCR10EZHJ330 33OHM 5% 1/8W 0IMCRNS007C LMS1587CS-ADJ 1.5TO5.75V - R212 0RH0332D622 MCR10EZHJ330 33OHM 5% 1/8W 0IZZTSA115A ST 48P 37LP1DA-ZA STI5516 F R213 0RH0332D622 MCR10EZHJ330 33OHM 5% 1/8W IC303 0ISTLPH048A 74LVC245APW 1.2TO3.6V 0.01m R215...
  • Page 48 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R416 0RH1200D622 MCR10EZHJ121 120OHM 5% 1/8W 6210TCE001G HH-1M3216-501JT 500OHM 3.2X R417 0RH1200D622 MCR10EZHJ121 120OHM 5% 1/8W 6210TCE001G HH-1M3216-501JT 500OHM 3.2X R418 0RH1200D622 MCR10EZHJ121 120OHM 5% 1/8W...
  • Page 49 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C615 0CH6560K416 C2012C0G1H560JT 56pF 5% 50V L404 6210TCE001G HH-1M3216-501JT 500OHM 3.2X C617 0CH3104K566 0805B104K500CT 100nF 10% 50 L500 6210TCE001G HH-1M3216-501JT 500OHM 3.2X C625...
  • Page 50 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R245 0RH1001D622 MCR10EZHJ102 1KOHM 5% 1/8W R406 0RH0000D622 MCR10EZHJ000 0OHM 5% 1/8W 2 R246 6210TCE001P HB-1S2012-121JT 120OHM 2X1.
  • Page 51 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R666 0RH0000D622 MCR10EZHJ000 0OHM 5% 1/8W 2 C103 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% R673 0RH2200D622 MCR10EZHJ221 220OHM 5% 1/8W C107 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% R674...
  • Page 52 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C616 0CC020CK01A C1608C0G1H020CT 2pF 0.25PF IC206 0IMMRCS013A CAT24C21 1KBIT 128X8BIT 2.5 C626 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% IC207 0ISTL00026A MC14066BDR2G 3TO18V 0.001mA...
  • Page 53 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R422 0RH1001D622 MCR10EZHJ102 1KOHM 5% 1/8W R658 0RH1001D622 MCR10EZHJ102 1KOHM 5% 1/8W R423 0RH2200D622 MCR10EZHJ221 220OHM 5% 1/8W R659 0RH1001D622 MCR10EZHJ102 1KOHM 5% 1/8W R424...
  • Page 54 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C146 0CK104CK56A 0603B104K500CT 100nF 10% 50 R102 0RJ0222D677 MCR03EZPJ220 22OHM 5% 1/10W C148 0CK104CK56A 0603B104K500CT 100nF 10% 50 R104 0RJ0222D677 MCR03EZPJ220 22OHM 5% 1/10W...
  • Page 55 MCR03EZPJ220 22OHM 5% 1/10W CN103 6630VF00530 12507WR-30A00 30P 1.25MM 1R R260 0RJ0000D677 MCR03EZPJ000 0OHM 5% 1/10W IC101 0IPRPAL005A AT76C120-UI-OJZ208 1.8VTO3. R263 0RJ0000D677 MCR03EZPJ000 0OHM 5% 1/10W IC102 0IZZTSA116A ATMEL 48P 37LP1DA-ZA X-STUD R264 0RJ1500D677 MCR03EZPJ151 150OHM 5% 1/10 - 56 -...
  • Page 56 DATE: 2006. 02. 14. DATE: 2006. 02. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R265 0RJ2200D677 MCR03EZPJ221 220OHM 5% 1/10 Q3106 0TR387500AA 2SC3875S(ALY) NPN 5V 60V 50 R266 0RJ1001D677 MCR03EZPJ102 1KOHM 5% 1/10W Q3107...
  • Page 61 Fer, 2006 P/NO : Printed in Korea...

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