Sharp LC-42D72U Service Manual
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Sharp LC-42D72U Service Manual

Sharp LC-42D72U Service Manual

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TopPage
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.
[1]
SPECIFICATIONS ................................. . ....... 1-1
[2]
OPERATION MANUAL .......................... . ....... 1-2
[3]
DIMENSIONS ........................................ . ....... 1-8
[1]
REMOVING OF MAJOR PARTS ........... . ....... 2-1
CHAPTER 3. ADJUSTMENT
[1]
ADJUSTMENT PROCEDURE ............... . ....... 3-1
CHAPTER 4. TROUBLESHOOTING TABLE
[1]
TROUBLESHOOTING TABLE............... . ....... 4-1
[1]
MAJOR IC INFORMATIONS.................. . ....... 5-1
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.

SERVICE MANUAL

LCD COLOR TELEVISION

MODEL
CONTENTS
CHAPTER 6. OVERALL WIRING DIAGRAM/BLOCK
DIAGRAM
[1]
OVERALL WIRING DIAGRAM ......................6-1
[2]
SYSTEM BLOCK DIAGRAM .........................6-3
[3]
MAIN BLOCK DIAGRAM...............................6-5
[1]
BOARD..........................................................7-1
[2]
[3]
[4]
BOARD........................................................ 7-11
[1]
GRAM............................................................8-1
[2]
SCHEMATIC DIAGRAM ................................8-2
No. S17B9LC42D72U
LC-42D72U
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-42D72U

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Summary of Contents for Sharp LC-42D72U

  • Page 1: Table Of Contents

    TopPage LC-42D72U SERVICE MANUAL No. S17B9LC42D72U LCD COLOR TELEVISION LC-42D72U MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig- inal condition and only parts identical to those specified should be used.

  • Page 2: Safety Precaution Important Service Safety Pre- Caution

    LC-42D72U LC-42D72U SAFETY PRECAUTION Service Manual IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING • Use an AC voltmeter having with 5000 ohm per volt, or higher, sen- sitivity or measure the AC voltage drop across the resistor.

  • Page 3: Precautions A Prendre Lors De La Reparation

    LC-42D72U PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT • A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ...

  • Page 4: Precautions For Using Lead-Free Solder

    LC-42D72U PRECAUTIONS FOR USING LEAD-FREE SOLDER Employing lead-free solder • “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

  • Page 5: Chapter 1. Operation Manual Specifications

    LC-42D72U CHAPTER 1. LC-42D72U OPERATION MANUAL Service Manual [1] SPECIFICATIONS 1 – 1...

  • Page 6: Operation Manual

    LC-42D72U [2] OPERATION MANUAL 1 – 2...
  • Page 7 LC-42D72U 1 – 3...
  • Page 8 LC-42D72U 1 – 4...
  • Page 9 LC-42D72U 1 – 5...
  • Page 10 LC-42D72U 1 – 6...
  • Page 11 LC-42D72U 1 – 7...

  • Page 12: Dimensions

    LC-42D72U [3] DIMENSIONS 1 – 8...

  • Page 13: Chapter 2. Removing Of Major Parts

    LC-42D72U CHAPTER 2. LC-42D72U REMOVING OF MAJOR PARTS Service Manual [1] REMOVING OF MAJOR PARTS 1. Remove the SD Card Cover. 2. Remove the 4 lock screws and detach the Stand Base Ass’y. 3. Remove the 12 lock screws, 5 lock screws and detach the Rear Cabinet.
  • Page 14 LC-42D72U 4. Remove the 4 lock screws and detach the Chassis Fixing Angle. 5. Remove the 4 lock screws and detach the Center Angle (L) (R). 6. Remove the 2 lock screws and detach the Stand Assist Angle. 7. Remove the 2 lock screws and detach the Stand Assist Cover.
  • Page 15 LC-42D72U 10.Disconnect all the connectors from all the PWBs. 11.Remove the Top Cover Ass’y Remove the 1 lock screw from the Top Cover Ass’y and detach the KEY Unit. Top Cover Ass'y 2 – 3...

  • Page 16: Main Unit

    LC-42D72U 12.Remove the 7 lock screws and detach the Tray Chassis. 13.Remove the 2 lock screws, 3 lock screws, 2 lock screws, 2 lock screws and detach the Terminal Angle. 14.Remove the 7 lock screws and detach the POWER Unit.
  • Page 17 LC-42D72U 19.Remove the 6 lock screws and detach the Lug Angle top (L) (R). 20.Remove the 3 lock screws and detach the Lug Angle Top Center. 21.Remove the 9 lock screws and detach the Lug Angle Bottom. 22.Remove the LCD Panel Module.
  • Page 18 LC-42D72U CHAPTER 3. LC-42D72U ADJUSTMENT Service Manual [1] ADJUSTMENT PROCEDURE The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.
  • Page 19 LC-42D72U 2. When the formatting is over, the following window appears. Click [OK]. 3. Click [Exit] to finish the formatting. NOTE: When you are done, take out the SD card once to make sure it is finished, and then insert it again.
  • Page 20 LC-42D72U 5. If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red. NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.
  • Page 21 LC-42D72U 4. A couple to dozen seconds after the set starts, the upgrade screen below shows up. The upgrade progress is indicated on screen. The power LED indicator goes out once and then starts flashing in blue. (It takes 2-3 minutes to get the monitor microprocessor software upgraded.) 5.
  • Page 22 LC-42D72U 3. Entering and exiting the adjustment process mode 1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu. 2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power.
  • Page 23 LC-42D72U 5. List of adjustment process mode menu The character string in brackets [ ] will appear as a page title in the adjustment process menu header. Page Line Item Description Remarks (adjustment detail, etc.) [INFO] MAIN Version Main software version...
  • Page 24 LC-42D72U Page Line Item Description Remarks (adjustment detail, etc.) [M GAMMA IN] MONITOR GAMMA IN 1 Standard value 1(WBI10184) Adjustment gradation setting. MONITOR GAMMA IN 2 Standard value 2(WBI20352) MONITOR GAMMA IN 3 Standard value 3(WBI30528) MONITOR GAMMA IN 4...
  • Page 25 LC-42D72U Page Line Item Description Remarks (adjustment detail, etc.) [SOUND 3] SUB_VOLUME_SURROUND SUB_VOLUME_FLAT SUB_VOLUME_EQ SUB_VOLUME_HP SUB_VOLUME_HP_CENTERSP SUB_VOLUME_CENTERSP_EQ SUB_VOLUME_CENTERSP_FLAT BBE_HF_ADJUST BBE_LEVEL BBE_MACH3_F0 BBE_MACH3_Q BBE_MACH3_GAIN [SOUND 4] EQ_MODE PEQ1_F0 PEQ1_Q PEQ1_GAIN PEQ2_F0 PEQ2_Q PEQ2_GAIN PEQ3_F0 PEQ3_Q PEQ3_GAIN PEQ4_F0 PEQ4_Q PEQ4_GAIN [SOUND 5]...
  • Page 26 LC-42D72U Page Line Item Description Remarks (adjustment detail, etc.) [M OPC3] BRIGHTNESS DA23 BRIGHTNESS DA24 BRIGHTNESS DA25 BRIGHTNESS DA26 BRIGHTNESS DA27 BRIGHTNESS DA28 BRIGHTNESS DA29 BRIGHTNESS DA30 BRIGHTNESS DA31 BRIGHTNESS DA32 [M ADL1] OPC33 ADLEVEL 0 OPC33 ADLEVEL 1 OPC33 ADLEVEL 2...

  • Page 27: Video Signal Adjustment Procedure

    LC-42D72U Page Line Item Description Remarks (adjustment detail, etc.) [M EEP SET] MONITOR TIME OUT MONITOR MAX TEMP MONITOR STANDBY CAUSE [M TESTPTRN] LCD TEST PATTERN [MEMORY CLR] KEY LOCK(1217) KOUTEI AREA ALL CLEAR A MODE AREA CLEAR BACKUP AREA CLEAR...

  • Page 28: Adjustment Procedure

    LC-42D72U 7.3. N358 composite signal adjustment (Tuner) Adjustment item Adjustment conditions Adjustment procedure Adjustment N358 signal Feed the PAL split field color bar signal (75% color saturation) to VIDEO 1 input. Feed the RF signal (by use of US-10ch) to TUNER-A.
  • Page 29 (This is because the adjustment is made to achieve the same remainder of RGB setting/4 at Point 6 each point.) WBI60928 [Adjustment values] •As per the “standard set” submitted by Engineering Department MG6G**** MG6B**** “LC-42D72U” Teaching set MG6R**** [Adjustment reference] Instrument: Minolta CA-210 Engineering instrument Point 5 WBI50800 MG5G**** MG5B**** MG5R****...
  • Page 30 LC-42D72U 8.2. Adjusting procedure by use of [RS-232C] 1. Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable. 2. Start the unit with the RS-232C cable connected. 3. Start the terminal software. (The freeware readily available on the Internet will do.) 4.

  • Page 31: Initialization To Factory Settings

    LC-42D72U 9. Initialization to factory settings CAUTION: When initialization is performed, all user setting data including the channel settings are initialized. Be cautious when making this adjust- ment. (The adjustments done in the adjustment process mode are not initialized.) Adjustment item...

  • Page 32: Troubleshooting Table

    LC-42D72U CHAPTER 4. LC-42D72U TROUBLESHOOTING TABLE Service Manual [1] TROUBLESHOOTING TABLE No video (1) COMPOSITE: No external input video COMPOSITE: No external input video COMPOSITE: No external input video [INPUT-3] [INPUT-1] [INPUT-2] Is INPUT-1 selected on the input select Is INPUT-2 selected on the input select...
  • Page 33 LC-42D72U Is there the COMPOSITE video signal input at pins (M4, N4) of IC3301 (VPC)? Check the line between SC1101 and IC3301 (Q2201 thru Q2203, Q2205, Q2207. Q2209, etc.). Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301?
  • Page 34 LC-42D72U No video (2) COMPONENT: No external input video COMPONENT: No external input video S-VIDEO: No external input video [INPUT-3] [INPUT-1] [INPUT-2] Is INPUT-1 selected on the input select Is INPUT-2 selected on the input select Is INPUT-3 selected on the input select menu...
  • Page 35 LC-42D72U [COMPOSITE signal input] Is there the COMPONENT video signal input at pins (U3) (Y) / (AA1) (Pb) and (W3) Check the line (Pr) of IC3301 (VPC)? between SC1101 nad IC3301 and its periphen cir- cuits. [S-VIDEO signal input] Is there the video signal input at pins (M4, N4)(Y) and (T1)(C) of IC3301 (VPC)?
  • Page 36 LC-42D72U No video (3) No video at UHF/VHF broadcast signal recep- No video at digital broadcast signal reception tion Is the specified TV signal selected on the input Is the specified TV signal selected on the input select menu screen?
  • Page 37 LC-42D72U Are there the MVY[7:0], MVC[7:0] and MVCLK/ MNSYNCO/MVSYNCO signal inputs at IC3301? Check the line between IC8101 and IC3301. Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301? TA2_P/M(AJ30/AK30), TB2_P/M(AJ29/AK29), TC2_P/M(AJ28/AK28), TD2_P/M(AJ26/AK26), TE2_P/M(AJ25/AK25), TF2_P/M(AJ24/AK24),...
  • Page 38 LC-42D72U <HDMI signal input> No video (4) No external input video [INPUT-4] No external input video [INPUT-5] Is INPUT-4 selected on the input select menu screen? Is INPUT-5 selected on the input select menu screen? Select INPUT-4 on the input select menu screen for the Select INPUT-5 on the input select menu screen for the right input signal.
  • Page 39 LC-42D72U Check the DDC line and its peripheral circuits Check the DDC line and its peripheral cir- (IC1502 (EEPROM) and its peripherals). cuits (IC1501 (EEPROM) and its peripherals). Does the signal come from pins (34 and 35) (CLK±), (31 and 32) (D0±), (28 and 29) Check IC1507, IC1508 and their periph- (D1±), and (25 and 26) (D2±) of IC1507 to pins (50 and 51), (54 and 55), (58 and 59), and...
  • Page 40 LC-42D72U <DVI signal input> No video (4) No external input video [INPUT-6] No external input video [INPUT-6] Is INPUT-6 selected on the input select menu screen? Is INPUT-6 selected on the input select menu screen? Select INPUT-6 on the input select menu screen for Select INPUT-6 on the input select menu screen for the right input signal (AUTO or DIGITAL).
  • Page 41 LC-42D72U Does the signal come from pins (34 and 35) (CLK±), (31 and 32) Check the DDC line and its peripheral circuits (D0±), (28 and 29) (D1±), and (25 and 26) (D2±) of IC1507 to pins (50 (IC1505 (EEPROM) and its peripherals).
  • Page 42 LC-42D72U No audio (1) [Audio signal] INPUT-1 No audio [Audio signal] INPUT-2 No audio [Audio signal] INPUT-3 No audio [INPUT-1 input] [INPUT-2 input] [INPUT-3 input] Is INPUT-1 selected on the input select menu Is INPUT-2 selected on the input select menu...
  • Page 43 LC-42D72U Is there the audio signal input at pins (11)(L) and (14)(R) of connector Check the SC1301 and P2704 connectors. (P2704) on the TERMINAL unit? Is there the audio signal input at pins (5)(L) and (3)(R) of IC2701 Check the line between P2704 and IC2701, and their periph-...
  • Page 44 LC-42D72U No Audio (1) [Audio signal] INPUT-5 No audio (HDMI analog input) [Audio signal] INPUT-6 No audio (DVI-I analog input) [HDMI analog input] NO Is the audio output selected [DVI-I analog input] Is the audio output Is INPUT-5 selected for “VARIABLE” on the menu Is INPUT-6 selected on the selected for “VARI-...
  • Page 45 LC-42D72U [with HDMI connected] No audio (2) No audio in all modes (3) [Audio signal] INPUT-4 No audio (HDMI con- nected) [Audio signal] INPUT-5 No audio (HDMI con- nected) [INPUT-4 input] Is INPUT-4 selected on the input select menu screen?
  • Page 46 LC-42D72U Is there the audio signal output at pins (38)(L) and (39)(R) of IC1403? Check IC1403 and its peripheral circuits. Is there the audio signal output at pins (11)(L) and (14)(R) of connec- Check the line between IC1407 and SC1301.
  • Page 47 LC-42D72U No audio (4) No audio at digital broadcast No audio at UHF/VHF broad- signal reception cast signal reception Move the sound volume key. Set the audio output to Is the audio output selected for Set the audio output to Does the volume icon indicate “FIXED”.
  • Page 48 LC-42D72U Are the audio signal inputs at Check the line between pins (61)(L) and (62)(R) of IC8801 and IC1403, and IC1403? their peripheral circuits. Are the audio signal outputs Check IC1403 and its at pins (38)(L) and (39)(R) of peripheral circuits.
  • Page 49 LC-42D72U No audio signal at DIGITAL AUDIO OUTPUT terminal (Analog sound heard) No INPUT-4/5 (HDMI) audio No audio at digital broadcast signal reception If no video appears, refer Are there the IF_OUT_N Check the tuner to “No external input video...
  • Page 50 LC-42D72U No monitor audio Is the audio output from the Check the bus line monitor set at “VARIABLE” (SCL0/SDA0_5) and or “FIXED” on the menu IC1403. Replace as screen? required. Is there the MUTE signal Check the input at pin (2) of IC1408? MUTE_A_ALL and ACDET_MUTE signals.
  • Page 51 LC-42D72U LED flashing timing chart for error notification. 250ms 1sec 1) Power LED (The power LED (Green) which lights during TV reception flashes.) Error type Power red LED operation (1 cycle) Pins are microprocessor pins. Lamp failure L_FL_ERR (pin 73): L failure. Confirmed after 10 consecutive...
  • Page 52 LC-42D72U Basically, communication logs are analyzed by a bus Error type Notification LED operation (1 cycle) monitor or debug print logs are analyzed. Time-out setting reception failure Time-out setting and start-up mode change cannot be Start-up confirmation reception failure received from the main CPU. (Start-up communication until...

  • Page 53: Chapter 5. Major Ic Informations

    LC-42D72U CHAPTER 5. LC-42D72U MAJOR IC INFORMATIONS Service Manual [1] MAJOR IC INFORMATIONS 1. MAJOR IC INFORMATIONS 1.1. IC501 (MM3151XQ) This I2C bus-controlled video switch is designed to switch between tow-system color difference (component) signal, one-system S video signal and three-system composite signal.
  • Page 54 LC-42D72U 1.11. IC8101 (RH-iXB281WJZZQ) This LSI with MPEG-2 system decoder performs back-end processing for digital broadcasting. It is equipped with a CPU (processor core: AM33-3), de scrambler (DES), transport stream de-multiplexer, video decoder (MPEG-2 MP@HL compatible), graphic processor, audio decoder (AC3 compat- ible), and an NTSC video encoder.
  • Page 55 LC-42D72U — MEMO — 5 – 3...

  • Page 56: Overall Wiring Diagram

    LC-42D72U CHAPTER 6. LC-42D72U OVERALL WIRING DIAGRAM/BLOCK DIAGRAM Service Manual [1] OVERALL WIRING DIAGRAM OVERALL WIRING DIAGRAM 6 – 1...
  • Page 57 LC-42D72U 6 – 2...

  • Page 58: System Block Diagram

    LC-42D72U [2] SYSTEM BLOCK DIAGRAM SYSTEM BLOCK DIAGRAM 6 – 3...
  • Page 59 LC-42D72U 6 – 4...

  • Page 60: Main Block Diagram

    LC-42D72U [3] MAIN BLOCK DIAGRAM MAIN BLOCK DIAGRAM 6 – 5...
  • Page 61 LC-42D72U 6 – 6...

  • Page 62: Chapter 7. Printed Wiring Board R/C, Led Unit Printed Wiring Board

    LC-42D72U CHAPTER 7. LC-42D72U PRINTED WIRING BOARD Service Manual [1] R/C, LED UNIT PRINTED WIRING BOARD R/C, LED Unit (Side-A) R/C, LED Unit (Side-A Chip) R101 C105 R136 R102 R110 R105 R137 R108 Q103 R109 Q102 R106 R104 R107 R123...

  • Page 63: Key Unit Printed Wiring Board

    LC-42D72U [2] KEY UNIT PRINTED WIRING BOARD KEY Unit (Side-A) KEY Unit (Side-A Chip) S157 P151 S153 S151 D151 R151 S152 S154 D152 R153 S155 7 – 2...

  • Page 64: Main Unit Printed Wiring Board

    LC-42D72U [3] MAIN UNIT PRINTED WIRING BOARD MAIN Unit (Side A) 7 – 3...
  • Page 65 LC-42D72U 7 – 4...
  • Page 66 LC-42D72U MAIN Unit (Side A Chip) 7 – 5...
  • Page 67 LC-42D72U 7 – 6...
  • Page 68 LC-42D72U MAIN Unit (Side B) 7 – 7...
  • Page 69 LC-42D72U 7 – 8...
  • Page 70 LC-42D72U MAIN Unit (Side B Chip) 7 – 9...
  • Page 71 LC-42D72U 7 – 10...

  • Page 72: Terminal Unit Printed Wiring Board

    LC-42D72U [4] TERMINAL UNIT PRINTED WIRING BOARD TERMINAL Unit (Side-A) 7 – 11...
  • Page 73 LC-42D72U TERMINAL Unit (Side-A Chip) J502 J501 C503 C532 D514 D513 D512 R537 R567 C544 R601 C545 R607 C543 R608 C533 R609 R554 R604 IC501 R555 R566 C534 C536 R565 D519 C535 R603 R564 C537 R556 C541 R557 R602 R563...
  • Page 74 LC-42D72U — MEMO — 7 – 13...

  • Page 75: Chapter 8. Schematic Diagram

    LC-42D72U CHAPTER 8. LC-42D72U SCHEMATIC DIAGRAM Service Manual [1] DESCRIPTION OF SCHEMATIC DIA- GRAM 1. VOLTAGE MEASUREMENT CONDITION: 1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above volt- ages are measured with a 20k ohm/V tester.

  • Page 76: Key Unit

    LC-42D72U [2] SCHEMATIC DIAGRAM KEY Unit 8 – 2...
  • Page 77 LC-42D72U R/C, LED Unit 8 – 3...
  • Page 78 LC-42D72U MAIN Unit-1 8 – 4...
  • Page 79 LC-42D72U 8 – 5...
  • Page 80 LC-42D72U MAIN Unit-2 8 – 6...
  • Page 81 LC-42D72U 8 – 7...
  • Page 82 LC-42D72U MAIN Unit-3 8 – 8...
  • Page 83 LC-42D72U 8 – 9...
  • Page 84 LC-42D72U MAIN Unit-4 8 – 10...
  • Page 85 LC-42D72U 8 – 11...
  • Page 86 LC-42D72U MAIN Unit-5 8 – 12...
  • Page 87 LC-42D72U 8 – 13...
  • Page 88 LC-42D72U MAIN Unit-6 8 – 14...
  • Page 89 LC-42D72U 8 – 15...
  • Page 90 LC-42D72U MAIN Unit-7 8 – 16...
  • Page 91 LC-42D72U 8 – 17...
  • Page 92 LC-42D72U MAIN Unit-8 8 – 18...
  • Page 93 LC-42D72U 8 – 19...
  • Page 94 LC-42D72U MAIN Unit-9 8 – 20...
  • Page 95 LC-42D72U 8 – 21...
  • Page 96 LC-42D72U MAIN Unit-10 8 – 22...
  • Page 97 LC-42D72U 8 – 23...
  • Page 98 LC-42D72U MAIN Unit-11 8 – 24...
  • Page 99 LC-42D72U 8 – 25...
  • Page 100 LC-42D72U MAIN Unit-12 8 – 26...
  • Page 101 LC-42D72U 8 – 27...
  • Page 102 LC-42D72U MAIN Unit-13 8 – 28...
  • Page 103 LC-42D72U 8 – 29...
  • Page 104 LC-42D72U MAIN Unit-14 8 – 30...
  • Page 105 LC-42D72U 8 – 31...
  • Page 106 LC-42D72U MAIN Unit-15 8 – 32...
  • Page 107 LC-42D72U 8 – 33...
  • Page 108 LC-42D72U MAIN Unit-16 8 – 34...
  • Page 109 LC-42D72U 8 – 35...
  • Page 110 LC-42D72U MAIN Unit-17 8 – 36...
  • Page 111 LC-42D72U 8 – 37...
  • Page 112 LC-42D72U MAIN Unit-18 8 – 38...
  • Page 113 LC-42D72U 8 – 39...
  • Page 114 LC-42D72U MAIN Unit-19 8 – 40...
  • Page 115 LC-42D72U 8 – 41...
  • Page 116 LC-42D72U MAIN Unit-20 8 – 42...
  • Page 117 LC-42D72U 8 – 43...
  • Page 118 LC-42D72U MAIN Unit-21 8 – 44...
  • Page 119 LC-42D72U 8 – 45...
  • Page 120 LC-42D72U MAIN Unit-22 8 – 46...
  • Page 121 LC-42D72U 8 – 47...
  • Page 122 LC-42D72U MAIN Unit-23 8 – 48...
  • Page 123 LC-42D72U 8 – 49...
  • Page 124 LC-42D72U TERMINAL Unit-1 8 – 50...
  • Page 125 LC-42D72U 8 – 51...
  • Page 126 LC-42D72U TERMINAL Unit-2 8 – 52...
  • Page 127 LC-42D72U 8 – 53...
  • Page 128 LC-42D72U — MEMO — 8 – 54...

  • Page 129: Parts Guide

    LC-42D72U PartsGuide PARTS GUIDE LCD COLOR TELEVISION LC-42D72U MODEL CONTENTS PRINTED WIRING BOARD DUNTKD935FM11 ASSEMBLIES (TERMINAL Unit) LCD PANEL CABINET PARTS (NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN SUPPLIED ACCESSORIES ASSEMBLY BUT NOT INDEPENDENTLY.) PACKING PARTS (NOT REPLACEMENT ITEM)
  • Page 130 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [1] PRINTED WIRING BOARD ASSEMBLIES R/C, LED Unit DUNTKD909FM02 KEY Unit DUNTKD910FM02 MAIN Unit DUNTKD934FM10 TERMINAL Unit DUNTKD935FM11 POWER Unit (Unit Replacement Item) RDENCA184WJQZ [2] LCD PANEL (NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPEN- DENTLY.)
  • Page 131 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C1411 Capacitor 3.3 25V Ceramic RC-KZA508WJQZY C1412 Capacitor 2.2 Ceramic RC-KZA030WJZZY C1414 Capacitor 4.7 10V Ceramic RC-KZA069WJZZY C1416 Capacitor 1000p 50V Ceramic VCKYCZ1HB102KY C1417 Capacitor 0.1 10V Ceramic...
  • Page 132 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C1531 Capacitor 2.2 Ceramic RC-KZA115WJZZY C1532 Capacitor 10 16V Ceramic RC-KZA510WJPZY C1533 Capacitor 0.01 25V Ceramic VCKYCZ1EB103KY C1534 Capacitor 10 16V Ceramic RC-KZA510WJPZY C1535 Capacitor 0.1 25V Ceramic...
  • Page 133 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C1616 Capacitor 1000p 50V Ceramic VCKYCZ1HB102KY C1617 Capacitor 15p 50V Ceramic VCCCCY1HH150JY C1618 Capacitor 0.1 25V Ceramic VCKYCZ1EF104ZY C1619 Capacitor 1000p 50V Ceramic VCKYCZ1HB102KY C1620 Capacitor 12p 50V Ceramic...
  • Page 134 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C3336 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C3337 Capacitor 1000p 50V Ceramic VCKYCZ1HB102KY C3338 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C3339 Capacitor 10 16V Ceramic RC-KZA510WJPZY C3340 Capacitor 1000p 50V Ceramic...
  • Page 135 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C3424 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C3425 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C3426 Capacitor 10 16V Ceramic RC-KZA510WJPZY C3427 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C3428 Capacitor 0.1 10V Ceramic...
  • Page 136 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C8152 Capacitor 0.1 25V Ceramic VCKYCZ1EF104ZY C8153 Capacitor 0.1 25V Ceramic VCKYCZ1EF104ZY C8154 Capacitor 0.1 25V Ceramic VCKYCZ1EF104ZY C8301 Capacitor 0.1 25V Ceramic VCKYCZ1EF104ZY C8302 Capacitor 0.1 25V Ceramic...
  • Page 137 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C8615 Capacitor 39p 50V Ceramic VCCCCZ1HH390JY C8616 Capacitor 1 10V Ceramic VCKYCY1AB105KY C8617 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C8618 Capacitor 0.1 10V Ceramic VCKYCZ1AB104KY C8619 Capacitor 0.1 10V Ceramic...
  • Page 138 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) C9106 Capacitor 0.01 25V Ceramic VCKYCZ1EB103KY C9107 Capacitor 0.01 25V Ceramic VCKYCZ1EB103KY C9108 Capacitor 0.01 25V Ceramic VCKYCZ1EB103KY C9601 Capacitor 6800p 25V Ceramic VCKYCZ1EB682KY C9602 Capacitor 0.1 10V Ceramic...
  • Page 139 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) D1501 Diode MA2J11100L VHDMA111+++-1Y D1502 Diode MA152WK-(TX) VHDMA152WK/-1Y D1503 Diode MA152WK-(TX) VHDMA152WK/-1Y D1504 Diode MA152WK-(TX) VHDMA152WK/-1Y D1505 Diode MA2J11100L VHDMA111+++-1Y D1506 VHDMA111+++-1Y Diode MA2J11100L D1507 Zener Diode UDZSTE-175.6B...
  • Page 140 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) FB2608 Balun RBLN-A206WJZZY FB3301 Balun RBLN-A206WJZZY FB3302 Balun RBLN-0210TAZZY FB3303 Balun RBLN-0210TAZZY FB3304 Balun RBLN-0210TAZZY FB3305 RBLN-0210TAZZY Balun FB3306 Balun RBLN-0210TAZZY FB3307 Balun RBLN-A206WJZZY FB3308 Balun RBLN-A206WJZZY...
  • Page 141 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) IC9602 IC PQ1CX12H2ZPQ VHiPQ1CX12H-1Y IC9603 IC TPS40055PWPR VHiTPS40055-1Y IC9605 IC PQ1X181M2ZPH VHiPQ1X181M-1Y IC9606 IC TPS40055PWPR VHiTPS40055-1Y IC9607 IC TPS40055PWPR VHiTPS40055-1Y IC9701 VHiPQ090DNA-1Y IC PQ090DNA1ZPH IC9703 IC BH33FB1WG-TR...
  • Page 142 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) Q1402 Transistor VSKRC404E VSKRC404E++-1Y Q1501 Transistor VSKRC404E VSKRC404E++-1Y Q1502 Transistor VSKRC404E VSKRC404E++-1Y Q1503 Transistor UM6K1N TN VSUM6K1NTN+-1Y Q1504 Transistor UM6K1N TN VSUM6K1NTN+-1Y Q1505 VSKRC404E++-1Y Transistor VSKRC404E Q1506...
  • Page 143 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R1315 Resistor 100k 1/16W Metal Oxide VRS-CZ1JF104FY R1316 Resistor 5.6k 1/16W Metal Oxide VRS-CZ1JF562FY R1317 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102FY R1318 Resistor 1k 1/16W Metal Oxide...
  • Page 144 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R1499 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102FY R1500 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102FY R1501 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102FY R1503 Resistor 1k 1/16W Metal Oxide...
  • Page 145 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R1608 Resistor 10 1/16W Metal Oxide VRS-CZ1JF100JY R1609 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R1610 Resistor 470 1/16W Metal Oxide VRS-CZ1JF471JY R1611 Resistor 22k 1/16W Metal Oxide...
  • Page 146 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R2080 Resistor 22k 1/16W Metal Oxide VRS-CZ1JF223FY R2081 Resistor 10k 1/16W Metal Oxide VRS-CZ1JF103FY R2082 Resistor 22k 1/16W Metal Oxide VRS-CZ1JF223FY R2084 Resistor 1k 1/16W Metal Oxide...
  • Page 147 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R3516 Resistor 33 1/16W Metal Oxide VRS-CZ1JF330JY R3517 Resistor 82 1/16W Metal Oxide VRS-CZ1JF820JY R3518 Resistor 82 1/16W Metal Composition VRK-CD1JJ820JY R3520 Resistor 82 1/16W Metal Composition...
  • Page 148 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R8143 Resistor 1.8k 1/16W Metal Oxide VRS-CZ1JF182FY R8144 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102FY R8145 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102FY R8146 Resistor 10k 1/16W Metal Oxide...
  • Page 149 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R8346 Resistor 22 1/16W Metal Composition VRK-CD1JJ220JY R8347 Resistor 22 1/16W Metal Composition VRK-CD1JJ220JY R8348 Resistor 22 1/16W Metal Composition VRK-CD1JJ220JY R8349 Resistor 22 1/16W Metal Composition...
  • Page 150 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R8632 Resistor 4.7k 1/16W Metal Oxide VRS-CJ1JF472JY R8633 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R8634 Resistor 4.7k 1/16W Metal Oxide VRS-CJ1JF472JY R8635 Resistor 4.7k 1/16W Metal Oxide...
  • Page 151 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) R9321 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9323 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9325 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9326 Resistor 4.7k 1/16W Metal Oxide...
  • Page 152 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKD934FM10 (MAIN Unit) X3301 Crystal 14.31818MHz RCRSC0170TAZZY X8402 Crystal RCRSZA008WJZZY X8601 Crystal RCRSCA094WJZZY Connecting Cord (TUNER) QCNW-E249WJPZ Connecting Cord (PD) QCNW-E258WJQZ QCNW-E894WJQZ Connecting Cord (LP) Connecting Cord (KM) QCNW-E897WJQZ Connecting Cord (PH)
  • Page 153 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [6] DUNTKD935FM11 (TERMINAL Unit) C2730 Capacitor 0.47 25V Ceramic VCKYTV1EB474KY C2731 Capacitor 0.68 35V Ceramic RC-KZA516WJQZY C2732 Capacitor 0.68 35V Ceramic RC-KZA516WJQZY C2733 Capacitor 150p 50V Ceramic VCCCCY1HH151JY C2734 Capacitor 150p 50V Ceramic...
  • Page 154 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [6] DUNTKD935FM11 (TERMINAL Unit) Q507 Transistor DTC614TKT146 VSDTC614TK+-1Y Q508 Transistor DTC614TKT146 VSDTC614TK+-1Y Q509 Transistor 2SA1530A-T112-1R VS2SA1530AR-1Y R501 Resistor 75 1/8W Metal Oxide VRS-TQ2BD750JY R502 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102JY R503...
  • Page 155 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [6] DUNTKD935FM11 (TERMINAL Unit) R604 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY R611 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY R612 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY R613 Resistor 0 1/16W Metal Oxide...
  • Page 156 LC-42D72U [7] CABINET PARTS 19-2 19-1 19-2 19-2 1-11 1-10 22-2 22-4 22-3 22-3 22-1 15 53...
  • Page 157 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [7] CABINET PARTS Front Cabinet Ass'y CCABAB600WJ05 Front Cabinet LED Cover Front Cover Badge, "SHARP" Shine Trim HDECSA001WJSB Speaker Net HPNLSA090WJSB Mask Spacer, x5 Double Side Tape, x3 Double Side Tape, x4...
  • Page 158 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [7] CABINET PARTS Lug Angle Top R/L LANGKB071WJFW Lug Angle Center LANGKB072WJFW [8] SUPPLIED ACCESSORIES PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [8] SUPPLIED ACCESSORIES Wire Holder LHLDWA012WJKZ Cable Tie...
  • Page 159 LC-42D72U [9] PACKING PARTS (NOT REPLACEMENT ITEM)
  • Page 160 LC-42D72U PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [9] PACKING PARTS (NOT REPLACEMENT ITEM) Packing Case SPAKCD405WJZZ Bottom Case SPAKCD085WJZZ Wrapping Paper SPAKPA774WJZZ Buffer Material SPAKXB298WJZZ No. Label TLABKA009WJZZ [10] SERVICE JIGS (USE FOR SERVICING) RCA Cable L=1500mm, Tuner Extension...
  • Page 161 LC-42D72U...
  • Page 162 LC-42D72U 2007 COPYRIGHT © 2005 BY SHARP CORPORATION ALL RIGHTS RESERVED. No Part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying , recording, or otherwise, without prior written permission of the publisher.

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