Sharp LC-37D40U Service Manual

Lcd color television

Hide thumbs Also See for LC-37D40U:

Operation manual (56 pages)

Operation manual (56 pages)

Operation manual (60 pages)

Table Of Contents

100

101

102

103

104

105

106

107

108

109

110

111

112

Table of Contents

Quick Links

SERVICE MANUAL

LCD COLOR TELEVISION

LC-37D40U

LC-45D40U

MODELS

CONTENTS

This document has been published to be used for

after sales service only.

The contents are subject to change without notice.

LC-37D40U

LC-45D40U

S66U2LC45D40U

Page

Table of Contents

Summary of Contents for Sharp LC-37D40U

Page 1: Service Manual
LC-37D40U LC-45D40U SERVICE MANUAL S66U2LC45D40U LCD COLOR TELEVISION LC-37D40U LC-45D40U MODELS In the interests of user-safety (Required by safety regulations in some countries) the set should be re- stored to its original condition and only parts identical to those specified should be used.
Page 2: Important Service Safety Precaution
SAME TYPE FUSE. All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized LC-37D40U: F701 (8A, 125V) adaptor plug must be used only for the purpose of F4701, F5701 (3A~, 250V, 115°C) completing these checks.) LC-45D40U: F7801 (8A, 250V) Any reading of 0.75 Vrms (this corresponds to 0.5...
Page 3 REMPLACER LE FUSIBLE exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de LC-37D40U: F701 (8A, 125V) commande et des boutons, écusson, etc.) et mesurer F4701, F5701 (3A~, 250V, 115°C) la chute de tension CA en-travers de la résistance.
Page 4 LC-37D40U LC-45D40U Precautions for using lead-free solder 1 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: Specifications
• • As part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.
Page 6: Operation Manual
LC-37D40U LC-45D40U Operation Manual...
Page 7 LC-37D40U LC-45D40U...
Page 8 LC-37D40U LC-45D40U...
Page 9: Dimensions
LC-37D40U LC-45D40U Dimensions LC-37D40U Unit: inch/(mm) (612) (119) (117) (946) (822.6) (305) (200) LC-45D40U Unit: inch/(mm) (612) (104) (126) (1113) (989.1) (305) (200)
Page 10: Removing Of Major Parts
LC-37D40U LC-45D40U REMOVING OF MAJOR PARTS (LC-37D40U) 1. Remove the SD Card Cover . 2. Remove the 4 lock screws 1 and detach the Stand Base Ass'y. 3. Remove the 9 lock screws 2, 5 lock screws 3 and detach the Rear Cabinet.
Page 11 LC-37D40U LC-45D40U 4. Remove the 3 lock screws 4 and detach the Stand Cover. 5. Remove the 6 lock screws 5 and detach the Center Angle-L and R. 6. Remove the 2 lock screws 6 and detach the Stand Assist Angle.
Page 12 LC-37D40U LC-45D40U Disconnect the connectors 8 and 9, and detach the Speaker L and R. Disconnect the connector CN7502. 10. Remove the 5 lock screws 0 and detach the MAIN Shield. Main Shield CN7502 Speaker R Speaker L 11. Disconnect the connectors, (P2002, P2601, P2602, P2603, P9701, P9702, SC1102, SC1101, SC1301, CN1, CN2, P2703, P502, CN5701, CN5702, CN5703) and Remover the Coaxial Cable.
Page 13 LC-37D40U LC-45D40U 14. Remove the 4 lock screws e and detach the PWB Ass'y. 15. Remove the 5 lock screws r and detach the Jack Angle Long. 16. Remove the 4 lock screws t and detach the IF Unit. 17. Remove the 6 lock screws y and detach the POWER SUPPLY Unit.
Page 14 LC-37D40U LC-45D40U (LC-45D40U) 1. Remove the SD Card Cover . 2. Remove the 4 lock screws 1 and detach the Stand Base Ass'y. 3. Remove the 16 lock screws 2, 4 lock screws 3 and detach the Rear Cabinet. SD-Card...
Page 15 LC-37D40U LC-45D40U 4. Remove the 4 lock screws 4 and detach the Stand Sub Angle and Stand Bottom Cover. 5. Disconnect the Connectors 5 and 6 and Remove the 7 lock screws 7 and detach the 2 Fans. 6. Remove the 8 lock screws 8 and detach the Center Angle-L and R.
Page 16 LC-37D40U LC-45D40U 7. Disconnect the connectors 9 and 0, and datach the Speaker L and R. 8. Remove the 6 lock screws q and detach the MAIN Shield. Main Shield Speaker R Speaker L Disconnect the connector (CN7502A, CN7051A, P2002, P2601, P2602, P2603, P9002, P9701, P9702, SC1101, SC1102, SC1301, P2703, P502, CN1, CN2, CN5703, CN5701, CN5702, CN701, P7802,CN7501C, CN7502C, CN7510C) and Remove the Coaxial Cable.
Page 17 LC-37D40U LC-45D40U 12. Remove the 4 lock screws r and detach the Stand Fix Angle. 13. Remove the 10 lock screws t and detach the PWB Ass'y. 14. Remove the 7 lock screws y and u and detach the Jack Angle Long.
Page 18: Adjustment Procedure
1. After replacement of any PWB unit and/or IC for repair, please note the following. When replacing the following units, make sure to prepare the new units loaded with updated software. MAIN Unit: DUNTKD640FM06 (LC-37D40U) / DUNTKD640FM07 (LC-45D40U) IF Unit: DUNTKD643FM06 (LC-37D40U) / DUNTKD643FM07 (LC-45D40U) 2.
Page 19 LC-37D40U LC-45D40U Preparations To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start. Follow the steps below and create the SD card for version upgrade. 1 Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format].
Page 20 LC-37D40U LC-45D40U How to upgrade the software 1 Shut off the AC power (i.e. unplug the AC cord). 2 Insert the SD card for version upgrade (prepared as above) into the service socket located lower side from center at terminals, above S-VIDEO terminal in the rear of the unit, in a way that the cut corner of the SD card comes at the upper side.
Page 21 LC-37D40U LC-45D40U 7 Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade. 8 Now the software version upgrade is complete. Note: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main software version information.
Page 22 2-4. Video signal adjustment procedure 1) Image adjustment (1) Device check ■ Before adjustment, make sure that the adjusting device and signal source are set for the Sharp LCD US. ■ Signal generator level adjustment check (Adjustment to the specified level) » Composite signal 0.714Vp-p ±...
Page 23 LC-37D40U LC-45D40U (4) Component 15K signal adjustment Adjustment item Adjustment conditions Adjustment procedure Feed the 100% color bar signal to VIDEO 1 component input. Adjustment 480i signal 480i 100% color bar signal ↑100% white ↑0% black Bring the cursor on [ËCOMP 15K MAIN ADJ] and press [ENTER].
Page 24 LC-37D40U LC-45D40U 2-5. Adjustment of white balance (1) White balance adjustment Adjustment item Adjustment conditions Adjustment procedure Adjustment Light level: MAX (+12) 1. Apply the following settings to the set. (Place a luminance AV MODE: [STANDARD] meter on the center Aging Time: 60 Min.
Page 25 LC-37D40U LC-45D40U (2) Adjustment sequence (adjustment according to the G adjustment value of gradation 6) * Make sure the adjusting point gradations are correct since they are different for each model. Set the light level to MAX with the light control command (SBSL0016 for 45).
Page 26 LC-37D40U LC-45D40U Start measurement Adjust RB to the target xy values. MG5RXXXX MG5BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value Repeat until RGB of the LEV5 command multiplied by 2.
Page 27 LC-37D40U LC-45D40U Start measurement Adjust RB to the target xy values. MG3RXXXX MG3BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of Repeat until RGB the LEV3 command multiplied by 2.
Page 28 LC-37D40U LC-45D40U Start measurement Adjust RB to the target xy values. MG1RXXXX MG1BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of Repeat until RGB the LEV1 command multiplied by 2.
Page 29 LC-37D40U LC-45D40U 2-8. Menu list in process A mode Page Line Item Main Verison Main microcomputer software version BOOT version Monitor Version Monitor microcomputer software version EQ DATA CHECKSUM Sound parameter checksum TEMPERATURE Read value of temperature sensor LAMP ERROR...
Page 30 LC-37D40U LC-45D40U Page Line Item MONITOR GAMMA IN 1 White balance adjustment IN-Point1 MONITOR GAMMA IN 2 White balance adjustment IN-Point2 MONITOR GAMMA IN 3 White balance adjustment IN-Point3 MONITOR GAMMA IN 4 White balance adjustment IN-Point4 MONITOR GAMMA IN 5...
Page 31 LC-37D40U LC-45D40U Page Line Item AIN2_ADC_VOLUME AIN3_ADC_VOLUME AIN4_ADC_VOLUME AIN5_ADC_VOLUME AIN6_ADC_VOLUME 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_FO BBE_MACH3_Q BBE_MACH3_GAIN EQ_MODE PEQ1_FO PEQ1_Q PEQ1_GAIN PEQ2_FO PEQ2_Q PEQ2_GAIN PEQ3_FO PEQ3_Q PEQ3_GAIN PEQ4_FO PEQ4_Q PEQ4_GAIN PEQ5_FO PEQ5_Q PEQ5_GAIN EALA_GAIN BRIGHTNESS DA0...
Page 32 LC-37D40U LC-45D40U Page Line Item BRIGHTNESS DA9 BRIGHTNESS DA10 BRIGHTNESS DA11 BRIGHTNESS DA12 BRIGHTNESS DA13 BRIGHTNESS DA14 BRIGHTNESS DA15 BRIGHTNESS DA16 BRIGHTNESS DA17 BRIGHTNESS DA18 BRIGHTNESS DA19 BRIGHTNESS DA20 BRIGHTNESS DA21 BRIGHTNESS DA22 BRIGHTNESS DA23 BRIGHTNESS DA24 BRIGHTNESS DA25 BRIGHTNESS DA26...
Page 33 LC-37D40U LC-45D40U Page Line Item OPC33 ADLEVEL18 OPC33 ADLEVEL19 OPC33 ADLEVEL20 OPC33 ADLEVEL21 OPC33 ADLEVEL22 OPC33 ADLEVEL23 OPC33 ADLEVEL24 OPC33 ADLEVEL25 OPC33 ADLEVEL26 OPC33 ADLEVEL27 OPC33 ADLEVEL28 OPC33 ADLEVEL29 OPC33 ADLEVEL30 OPC33 ADLEVEL31 V6 OS THERMO 1 V6 OS THERMO 2...
Page 34 LC-37D40U LC-45D40U 2-9. Code list for Standby Cause Code Indication Description...
Page 35: Troubleshooting Table
LC-37D40U LC-45D40U TROUBLESHOOTING TABLE...
Page 36 LC-37D40U LC-45D40U...
Page 37 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued)
Page 38 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued)
Page 39 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued)
Page 40 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued)
Page 41 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued)
Page 42 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued) [ FRONT-END SECTION] Digital broadcasting cannot be received. Are IF_OUT_P/N signal Are US_TS_CLK/PKTSYNC/DATA signal Check IC8601 and its send from pin (20),(21) of supplied to pin (51),(59),(66) peripheral circuits. TU1101 respectively? of IC8601 respectively? Check the IC8101 and its peripheral Check the TU1101.
Page 43 LC-37D40U LC-45D40U TROUBLESHOOTING TABLE (Continued)
Page 44: Major Ic Informations
LC-37D40U LC-45D40U MAJOR IC INFORMATIONS ● IC8101 (RH-IXB145WJQZQ) An LSI of a MPEG-2 system decoder that performs back-end processing for digital broadcasting. This is equipped with a CPU (processor core: AM33-3), descrambler (DES), transport stream demultiplexer, video decoder (MPEG-2 MP@HL compatible), graphic processor, audio decoder (AC3 compatible), and an NTSC video encoder.
Page 45 LC-37D40U LC-45D40U - M E M O -...
Page 46: Overall Wiring Diagram
LC-37D40U LC-37D40U LC-45D40U LC-45D40U OVERALL WIRING DIAGRAM (For LC-37D40U) KEY UNIT P151 QCNW-E266WJQZ LCD CONTROL UNIT INPUT5 QCNW-E278WJQZ SC1501 HDMI P2002 P2602 INVERTER UNIT INPUT4 SC1502 HDMI P2601 QCNW-E537WJPZ QCNW-E267WJQZ To LAMP CN5703 CN7502 To LAMP P2603 MAIN UNIT QCNW-E257WJQZ...
Page 47 LC-37D40U LC-37D40U LC-45D40U LC-45D40U OVERALL WIRING DIAGRAM (For LC-45D40U) KEY UNIT P151 QCNW-E386WJQZ LCD CONTROL UNIT INPUT5 QCNW-E279WJQZ SC1501 HDMI P2002 P2602 INVERTER UNIT INVERTER INPUT4 UNIT SC1502 HDMI P2601 CN7502 CN7502 QCNW-E537WJPZ To LAMP QCNW-E387WJQZ To LAMP QCNW-E465WJQZ P9002...
Page 48: System Block Diagram
LC-37D40U LC-37D40U LC-45D40U LC-45D40U SYSTEM BLOCK DIAGRAM MAIN 14.318MHz L C D Xtal IC501 CVBS INPUT CVBS/LR AV SWITCH 14.318MHz MM1630CQ PANEL +3.3V +2.5V +1.8V YPbPr +9V_A Component Main Y/V Disclete CVBS1 83.5MHz Video1 Main C/Cb CVBS2(Y) LVDS OUT CVBS...
Page 49: Printed Wiring Board Assemblies
LC-37D40U LC-37D40U LC-45D40U LC-45D40U PRINTED WIRING BOARD ASSEMBLIES MAIN Unit (Side-A)
Page 50 LC-37D40U LC-37D40U LC-45D40U LC-45D40U P2601 P2602 P9008 LUG1102 P2603 P1301 P9002 P9701 P9702 C1301 R1310 FB2601 C1307 C2601 R9001 FDC1 R2601 R2602 C9701 R9624 R9633 R9632 L9602 FB3301 IC1301 Q9601 R9610 C9609 R3414 R3413 C3350 C9651 IC9606 R9630 Q9606 R9607...
Page 51 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit (Side-B)
Page 52 LC-37D40U LC-37D40U LC-45D40U LC-45D40U TL1313 TL2619 TL1308 TL1311 TL2604 TL2613 TL1314 TL9714 TL9047 TL2607 TL1309 E9204 TL2602 TL9701 TL9719 TL9713 TL1306 C9002 TL9004 TL2601 TL2616 TL2611 TL2618 TL2603 TL9049 TL2615 TL2614 TL2612 TL2606 TL2621 TL2610 TL2609 TL9046 TL9017 TL2608 TL1305...
Page 53 LC-37D40U LC-45D40U IF Unit (Side-A)
Page 54 LC-37D40U LC-45D40U J502 J501 C528 C532 D514 D513 D512 R542 R606 R568 R567 C544 R601 C545 R607 C543 R608 R551 C533 R609 R552 R554 R604 R553 IC501 R555 R566 C534 C536 D519 R603 C535 R565 C537 R564 R556 C541 R557...
Page 55 LC-37D40U LC-45D40U R114 R103 R113 Q104 R115 R101 C102 C103 R106 R110 R111 R107 R108 LED Unit (Side-A) LED Unit (Side-A Chip)
Page 56 LC-37D40U LC-45D40U KEY Unit AC INLET Unit (LC-45D40U Only)
Page 57: Parts List
USA: Contact your nearest SHARP Parts Distributor to order. in CANADA: Contact SHARP Electronics of Canada Limited For location of SHARP Parts Distributor, Please call Toll- Phone (416) 890-2100 Free; 1-800-BE-SHARP Note: Les pièces sur la PMI sont répertoriées dans l’ordre Note: The parts on the PWB are listed in alphabetical order.
Page 58 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C1539 VCKYCZ1EF104ZY R 0.1 Ceramic DUNTKD640FM06/07 (LC-37/45D40U) C1540 VCAAPE0JJ227MY R 220 6.3V Electrolytic MAIN Unit (Continued) C1541 VCAAPE0JJ107MY R 100 6.3V Electrolytic C1542 VCKYCZ1EF104ZY R 0.1 Ceramic C1543 VCKYCZ1EF104ZY R 0.1...
Page 59 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C3333 VCKYCZ1AB104KY R 0.1 Ceramic DUNTKD640FM06/07 (LC-37/45D40U) C3334 VCCCCZ1HH120JY R 12p Ceramic MAIN Unit (Continued) C3335 VCKYCZ1AB104KY R 0.1 Ceramic C3336 RC-KZA510WJPZY R 10...
Page 60 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C8610 VCKYCZ1CB103KY R 0.01 Ceramic DUNTKD640FM06/07 (LC-37/45D40U) C8611 RC-KZA510WJPZY R 10 Ceramic MAIN Unit (Continued) C8612 VCKYCY1AB105KY R 1 Ceramic C8613 RC-KZA510WJPZY R 10...
Page 61 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code D1309 VHD1SS355//-1Y R 1SS355 DUNTKD640FM06/07 (LC-37/45D40U) D1310 VHD1SS355//-1Y R 1SS355 MAIN Unit (Continued) D1311 VHD1SS355//-1Y R 1SS355 D1312 VHD1SS355//-1Y R 1SS355 D1401 VHD1SS355//-1Y R 1SS355...
Page 62 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code L2201 VPD9M220J2R7NY R Peaking, 22µH DUNTKD640FM06/07 (LC-37/45D40U) L2202 VPD9M220J2R7NY R Peaking, 22µH MAIN Unit (Continued) L2203 VPD9M220J2R7NY R Peaking, 22µH L3301 VPCEM2R2MR23NY R Peaking, 2.2µH L3302 VPCEM2R2MR23NY R Peaking, 2.2µH...
Page 63 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1407 VRS-CZ1JF332FY R 3.3k 1/16W Metal Oxide DUNTKD640FM06/07 (LC-37/45D40U) R1409 VRS-CZ1JF000JY 1/16W Metal Oxide MAIN Unit (Continued) R1410 VRS-CZ1JF4R7JY R 4.7 1/16W Metal Oxide...
Page 64 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R2014 VRS-CZ1JF472JY R 4.7k 1/16W Metal Oxide DUNTKD640FM06/07 (LC-37/45D40U) R2015 VRS-CZ1JF472JY R 4.7k 1/16W Metal Oxide MAIN Unit (Continued) (LC-45D40U) R2017 VRS-CZ1JF000JY 1/16W Metal Oxide...
Page 65 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R3416 VRS-CH1JF680JY R 68 1/16W Metal Oxide DUNTKD640FM06/07 (LC-37/45D40U) R3417 VRS-CH1JF680JY R 68 1/16W Metal Oxide MAIN Unit (Continued) R3418 VRS-CH1JF680JY R 68 1/16W Metal Oxide...
Page 66 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R8367 VRS-CZ1JF330JY R 33 1/16W Metal Oxide DUNTKD640FM06/07 (LC-37/45D40U) R8368 VRS-CZ1JF330JY R 33 1/16W Metal Oxide MAIN Unit (Continued) R8369 VRK-CD1JJ330JY R 33 1/16W...
Page 67 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R9304 VRS-CZ1JF103JY R 10k 1/16W Metal Oxide DUNTKD640FM06/07 (LC-37/45D40U) R9305 VRS-CZ1JF472JY R 4.7k 1/16W Metal Oxide MAIN Unit (Continued) R9306 VRS-CZ1JF103JY R 10k 1/16W Metal Oxide...
Page 68 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKD640FM06/07 (LC-37/45D40U) DUNTKD641FM06/07 (LC-37/45D40U) MAIN Unit (Continued) LED Unit QCNW-E391WJQZ X Connecting Cord(SP) C101 VCERMZ1CN107MY R 100 Capacitor(AL) AD (LC-45D40U) C102 VCKYTV1CF225ZY R 2.2...
Page 69 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C2729 VCKYTV1EB474KY R 0.47 Ceramic DUNTKD643FM06/07 (LC-37/45D40U) C2730 VCKYTV1EB474KY R 0.47 Ceramic IF Unit C2731 VCKYCY1HB104KY R 0.1 Ceramic C2732 VCKYCY1HB104KY R 0.1 Ceramic...
Page 70 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R559 VRS-CJ1JF470JY R 47 1/16W Metal Oxide DUNTKD643FM06/07 (LC-37/45D40U) R561 VRS-CY1JF223JY R 22k 1/16W Metal Oxide IF Unit (Continued) R562 VRS-CY1JF101JY R 100 1/16W Metal Oxide...
Page 71 LC-37D40U LC-45D40U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKD716FM06/07 (LC-37/45D40U) DUNTKD726FM07 (LC-45D40U only) KEY Unit AC INLET Unit D151 RH-EX0646GEZZY R Zener Diode å C7801 RC-FZ029SCEZZ R 0.22 275V D152 RH-EX0646GEZZY R Zener Diode å...
Page 72 LC-37D40U LC-45D40U - M E M O -...
Page 73: Cabinet And Mechanical Parts
– Front Cabinet — QCNW-E286WJQZ X Connecting Cord (SP) Not Available – Front Cover — QCNW-E439WJQZ X Connecting Cord (LA) Not Available – Badge, SHARP — QCNW-E537WJPZ X Connecting Cord (LV) PSPAHA416WJZZ X Mask Spacer, x2 RSP-ZA166WJZZ X Speaker L Not Available –...
Page 74 LC-37D40U LC-45D40U CABINET AND MECHANICAL PARTS (LC-37D40U) 55 20...
Page 75 X Screw (for Angle), x20 Not Available – Front Cover — XBBS930P06000 X Screw (for Cab-B), x4 Not Available – Badge, SHARP — XBPS730P06WS0 X Screw (for Angle, PWB), x46 AB PSPAHA416WJZZ X Mask Spacer, x6 XBPS730P20JS0 X Screw (for Fan), x4 Not Available –...
Page 76 LC-37D40U LC-45D40U CABINET AND MECHANICAL PARTS (LC-45D40U)
Page 77: Packing Parts
X Cable Clamp SPAKCC436WJZZ – Packing Case — LHLDWA083WJ00 X Cable Band SPAKFA916WJZZ – Packing Case (Stand) — CDAi-A246WJ20 X Stand Ass'y (LC-37D40U) SPAKPA601WJZZ – Wrapping Paper A — CDAi-A246WJ21 X Stand Ass'y (LC-45D40U) SPAKPA338WJZZ – Wrapping Paper (Monitor) — å X4...
Page 78: Packing Of The Set
LC-37D40U LC-45D40U PACKING OF THE SET (LC-37D40U) ★S8 ★S8 ★S 5 ★S 7 ★S 9 ★S3 ★S6 ★S8 ★S8 ★S10 ★S1 ★ Not Replacement item...
Page 79 LC-37D40U LC-45D40U PACKING OF THE SET (LC-45D40U) ★S 5 ★S 7 ★S 9 ★S3 ★S8 ★S8 ★S1 ★S6 ★S4 ★S10 ★S8 ★S8 ★S4 ★ Not Replacement item ★S2...
Page 80 LC-37D40U LC-45D40U...
Page 81: Table Of Contents
LC-37D40U LC-45D40U SCHEMATIC DIAGRAM LC-37D40U LC-45D40U Models CONTENTS DESCRIPTION OF SCHEMATIC DIAGRAM ................89 MAIN Unit ............................ 90 IF Unit ............................138 LED Unit ............................ 142 KEY Unit ............................ 143 AC INLET Unit ........................... 144...
Page 82: Description Of Schematic Diagram
LC-37D40U LC-45D40U DESCRIPTION OF SCHEMATIC DIAGRAM 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 colour bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
Page 83 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 1/22...
Page 84 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 2/22...
Page 85 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 3/22...
Page 86 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 4/22...
Page 87 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 5/22 (LC-37D40U)
Page 88 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 5/22 (LC-45D40U)
Page 89 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 6/22...
Page 90 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 7/22...
Page 91 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 8/22...
Page 92 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 9/22...
Page 93 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 10/22...
Page 94 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 11/22 DDR1 side dumping resistor CPU side dumping resistor DDR1 side dumping resistor DDR2 side dumping resistor CPU side dumping resistor DDR2 side dumping resistor...
Page 95 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 12/22...
Page 96 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 13/22...
Page 97: Mainunit 14/22
LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAINUnit 14/22...
Page 98 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 15/22...
Page 99 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 16/22...
Page 100 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 17/22...
Page 101 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 18/22 (LC-37D40U)
Page 102 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 18/22 (LC-45D40U)
Page 103 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 19/22...
Page 104 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 20/22...
Page 105 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 21/22...
Page 106 LC-37D40U LC-37D40U LC-45D40U LC-45D40U MAIN Unit 22/22...
Page 107: If Unit 1/2
LC-37D40U LC-37D40U LC-45D40U LC-45D40U IF Unit 1/2...
Page 108 LC-37D40U LC-37D40U LC-45D40U LC-45D40U IF Unit 2/2...
Page 109: Led Unit
LC-37D40U LC-45D40U LED Unit...
Page 110: Key Unit
LC-37D40U LC-45D40U KEY Unit...
Page 111: Ac Inlet Unit
LC-37D40U LC-37D40U LC-45D40U LC-45D40U AC INLET Unit (LC-45D40U Only) å AND SHADED COMPONENTS=SAFETY RELATED PARTS Gap 1.5mm Gap 1.5mm Gap 1.5mm Gap 1.5mm...
Page 112 LC-37D40U LC-45D40U © COPYRIGHT 2006 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

This manual is also suitable for:

Lc-45d40u

Sharp LC-37D40U Service Manual

Quick Links

SERVICE MANUAL

Related Manuals for Sharp LC-37D40U

Summary of Contents for Sharp LC-37D40U

This manual is also suitable for:

Table of Contents