LC-37HV4U LC-37HV4D SERVICE MANUAL S33Y4LC37HV4U LCD COLOR TELEVISION MODELS LC-37HV4U LC-37HV4D In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. OUTLINE This model is different in the display size from the LC-30HV4U/LC-30HV4D. This service manual accordingly describes the display alone.
LC-37HV4U LC-37HV4D IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: » Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
LC-37HV4U LC-37HV4D PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. de 0,15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à la terre.
LC-37HV4U LC-37HV4D 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. Example: LFa Indicates lead-free solder of tin, silver and copper. 2 Using lead-free wire solder When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder.
LC-37HV4U LC-37HV4D SPECIFICATIONS Item 37 LIQUID CRYSTAL TELEVISION, Model: LC-37HV4U/LC-37HV4D LCD panel 37 Advanced Super View & BLACK TFT LCD Number of dots 3,147,264 dots (1366 TV Function 768 3dots) TV-standard (CCIR) American TV Standard NTSC System Receiving Channel VHF/UHF VHF 2-13ch, UHF 14-69ch CATV 1-125ch Audio multiplex BTSC System Brightness 430 cd/m2 Backlight 60,000 hours (at Manual Standard position) Viewing angles H : 170° V : 170° Audio amplifier 10W Speakers
Display Part names 6 MAIN POWER button OPC indicator* POWER button INPUT button POWER indicator OPC sensor Remote control sensor CHANNEL buttons (CH / ) VOLUME buttons (VOL / ) *OPC: Optical Picture Control INPUT 4 terminal (S-VIDEO) INPUT 4 terminal (VIDEO) INPUT 4 terminals (AUDIO L/R) How to open the door. Headphone (When connecting headphones, the sound from the speakers is muted.
DISPLAY C VOL RECEIVER B INPUT A POWER FAVORITE CH VOL D VCR REC INFO DTV/SAT GUIDE SET/ ENTER POWER MENU MENU DTV/SAT DTV/DVD TOP TV/SAT/DVD ENT SOURCE RETURN MENU MUTE CH 0 FLASHBACK 8 7 VOL 9 100 5 6 3 LEARN TWIN CH CC 4 1 INPUT FREEZE SLEEP MODE EDIT/ SUB 2 SELECT PICTURE VIEW TWIN MTS SURROUND INPUT ANT-A/B FRONT AV CBL VCR DVD /LD /SAT /DTV POWER TV MODE TV 24 25 12 13 14 23 22 21 20 19 18 17 16 15 * is a trademark of SRS L
2 1 8 4 inches 10 cm) cm (10 or more inches (5 52cm or more cm) or more AVC System There is an exhaust fan on the right side. Adjust the screen with both hands. Put one hand on the Display and tilt the screen while steadying the stand with your other hand. You can adjust the screen vertically up to 4 degrees forward or 6 degrees backward, or rotate 10 degrees horizontally.
5 4 9 Closing the terminal cover • The small clamp on the right is used for bundling external speakers. NOTE Peel off the seal on the back and attach as shown. Insert the cable clamp in the hole on the Display leg as shown. Display (rear view) Cable clamp (Small) Cable clamp (Large) Attaching the clamps and bundling the cables with the clamp Preparation Cables come out from the small opening.
CAUTION ANALOG RGB PC-AUDIO AV Y/PB/PR S-VIDEO S-VIDEO S-VIDEO AV AV Y/PB/PR DVI AVC System (rear view) Game console/ Camcorder AVC System (front view) AV Receiver (Built-in Tuner Amp) AV Digital TV tuner • Please refer to the relevant operation manual (DVD player, PC, etc.) carefully before making connections.
Input Select Noise Clean Audio Out Cool Climate EZ Setup CH Setup Input Signal Parental CTRL Position Picture Flip Language Power Save No Signal Off No Operation Off Treble Bass Balance Speaker Option Setup Power control Audio Contrast Brightness Color Tint Sharpness Advanced C.M.S.
9,600 bps 8 bits None 1 bit None 12 Command 4-digits P4 Parameter 4-digits Return code Command 4-digits:Command. The text of four characters. Parameter 4-digits:Parameter 0 – 9, x, blank, ? 0 5 5 9 ? ? ? ? ? When “?” is input for some commands, the present setting value responds. 0 0 0 3 0 0 0 1 0 0 Input the parameter values, aligning left, and fill with blank(s) for the remainder. (Be sure that 4 values are input for the parameter.
LC-37HV4U LC-37HV4D DIMENSIONS Display 12 (305) 3 7/16 (87.5) 3 7/32(82) Unit: inch/(mm) 2129/64 (545) 37 21/64 (948) 4 5/8 (117.5) 3 7/16 (87.5) 4 5/8 (117.5) 4 21/64 (110) 16 5/64 (408.5) 27 7/16 (697) 18 9/64 (460.8) 23 7/64 (587) 3217/64 (819.6) 2129/64 (545) 12 (305) 7 7/32 (183.
LC-37HV4U LC-37HV4D REMOVING OF MAJOR PARTS 1.Take off the center and lower terminal covers. 2.Remove the two speaker fixing screws each and the speaker connecting terminal, and take off the speaker. 3.Remove the four stand fixing screws and take off the stand. 4.Remove the 19 cabinets A/B fixing screws and take off the cabinet B. 5.Remove the two key PWB assembly fixing screws and the connector, and take off the key PWB assembly. 6.
LC-37HV4U LC-37HV4D 9.Open six FFC cable holders and remove the three FFC holder (right & left) fixing screws each and all the connectors of flat cables (FFC), and take off the FFC holders (right & left). 10.Remove the Speaker-L and-R PWB fixing screws each and the connectors of them, and take off the Speaker-L and-R PWBs. 11.Remove the two R/C, LED PWB fixing screws and the connector, and take off the R/C, LED PWB. 12.Remove all the connectors from each PWB.
LC-37HV4U LC-37HV4D 13.Remove the five main PWB fixing screws, and take off the main PWB. 14.Remove the six power PWB fixing screws, and take off the power PWB. 15.Remove the four audio PWB fixing screws, and take off the audio PWB. 16.Take off the inverter-1 PWB. 17.Remove the three inverter-2 PWB fixing screws, and take off the inverter-2 PWB. 18.Take off the inverter-3 PWB. 19.Remove the three inverter-4 PWB fixing screws, and take off the inverter-4 PWB. 20.
LC-37HV4U LC-37HV4D • Handling Precautions for LCD Panel 1. Work in a clean room. (Humidity above 50%) 2. Operators should wear an earthing band. 3. Do not give a shock such as falling and vibration. 4. Use the ionizer. (Within 30 cm) 21.Remove the six LCD panel fixing screws and take off the LCD panel unit. 22.Remove the three sheet angle fixing screws, and take off the sheet angle. 23.Take off the reflection/deflection sheet, prism sheet, diffusion sheet and diffusion panel. 24.
LC-37HV4U LC-37HV4D ADJUSTMENT PROCEDURES Though the best adjustment is made at shipment from the factory, the following adjustment is required if the value should be deviated or some adjustment is needed after replacement of parts. Display Side: 1. Preparation for Adjustment The unit needs to be replaced when the AVC System CONFIGROM (IC2202), receiver (IC2206) and HDCP key ROM (IC2208) are replaced. Applicable unit: DKEYHB453FE53 (LC-37HV4U) DKEYHB453FE56 (LC-37HV4D) 2.
LC-37HV4U LC-37HV4D 5. Adjustment 5-1 VLSBIAS/15V voltage adjustment Shift to Item of VLS BIAS cursor up/down key, and select the value by cursor right/left key. Connect the digital voltage meter to MAIN PWB TP4101/No.30 pin of panel gate socket CN4102, and adjust to be 15.00±0.05V by the cursor up/down key. 5-2 GRAY LEVEL/14.5V voltage adjustment Shift to Item of GRAY LEVEL by cursor up/down key, and select the value by cursor right/left key.
LC-37HV4U LC-37HV4D ~ In this state, enter the command, listed below, and "ENTER" on the keyboard for adjustment. Press "ENTER" and make sure that "OK" appears on the terminal software. If "ERR" appears, try again. RS232C commands list Command MSET1001 MOFR~~~~ MOFG~~~~ MOFB~~~~ MGAR~~~~ MGAG~~~~ MGAB~~~~ MINF0000 MINF0001 MINF0002 Function Background adjustment started. R OFFSET value adjusted. G OFFSET value adjusted. B OFFSET value adjusted. R GAMMA value adjusted. G GAMMA value adjusted.
LC-37HV4U LC-37HV4D Lamp error detection [1] Function This LCD color TV set is equipped with automatic power-off (lamp error detection) function. This safety measure serves if the lamp or the lamp circuit gets in trouble. If by any chance the lamp or the lamp circuit gets in trouble, or if the lamp error detector gets activated for any other reasons, the following happens. 1 Turn on the power, but it comes off in about 23 seconds.
LC-37HV4U LC-37HV4D •List of process adjustment modes (Display) Process mode contents Page 0 LCD Page 1 PATTERN LCD Page 2 LCD Page 3 LCD Page 4 SOUND Others Page 1 Page 1 Page 1 Others 22 Page 2
LC-37HV4U LC-37HV4D Process adjustment list 1st level Contents LCD Page 1 1 2 3 4 PATTERN 1 SOUND 1 OTHER 1 Item GRAYLEVEL COM BIAS VLS BIAS L ERR RESET MODE PWM CTRL PWM FREQ PWM DUTY1 PWM DUTY2 PHASDIF PCLK1 PCLK2 MODE OS SW OS D1 OS D2 OS D3 OS D4 OS D5 OS D6 OS D7 MODE OPC 0 OPC 1 OPC 2 OPC 3 OPC 4 OPC 5 OPC 6 OPC 7 MODE OPC 8 OS AUTO PATTERN1 PATTERN2 R GAMMA R OFFSET G GAMMA G OFFSET B GAMMA B OFFSET 100HZ 400HZ 1KHZ 4KHZ 10KHZ FAN START FAN END TEMP ERR CLR MODE Setting range 0~255 0~2
LC-37HV4U LC-37HV4D TROUBLE SHOOTING TABLE No image or sound comes out. Is the power LED lit up in green? NO Is the power LED flashing in red? NO Is the AC cord normal? NO Replace the AC cord. YES Is it flashing once in one cycle? YES Proceed to "The backlight does not light up". NO Is it flashing twice in one cycle? YES Check the power unit.
LC-37HV4U LC-37HV4D TROUBLE SHOOTING TABLE (Continued) No image comes out. Is a HIGH appearing at the RESET terminal of pin (3) of IC2206? NO Check the circuits around X2201 connected to pin (161) of IC2206. YES Is a clock (91.3 MHz) appearing at TL2201 (pin (102) of IC2206)? NO Is X2201 connected to pin (161) of IC2206 oscillating (18.26MHz)? NO Check X2201 and the circuits around it.
LC-37HV4U LC-37HV4D TROUBLE SHOOTING TABLE (Continued) Noise appears on the moving image when the QS drive is turned ON. Is OSTEMP.AD on the 3rd page of the process adjustment mode set to 255? NO Check IC4701, IC4901 and the circuits around them. YES Are the audio unit and the inverter 4 unit connected properly by the harness? NO Check IC4701, IC4901 and the circuits around them.
LC-37HV4U LC-37HV4D TROUBLE SHOOTING TABLE (Continued) No sound comes out. (Connect to the AVC system and check.) NO Is power supplied to each IC in the audio unit? Check around the power regulator circuit (IC3809, IC3810). YES Is an audio signal appearing at pin (8) (L-IN) and pin (10) (R-IN) of P3802? NO Is an audio signal appearing at pins (13) and (20) of SC2202 in the main unit? NO Check for output from the AVC system side.
LC-37HV4U LC-37HV4D CHASSIS LAYOUT H G F E D C B A 1 2 3 4 5 6 28 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 29 16 17 18 19
LC-37HV4U LC-37HV4D BLOCK DIAGRAM H LCD Back Light Monitor LCD P R RGB 8X3X2 OFL1, 2 L RGB 8X3X2 G LCD Controller BGA265pin (LCDCONT) IC4501 (A475WJ) OSD RGB CONF FLASH IC4301 F CONF CTRL CPLD IC4303 (A345WJ) Rewrite Connector RGB 8X3 RGB 8X3 Dimmer Control, Im 16 (Data) 16 (Data) SDRAM (OS_EVEN) IC4702 (A312WJ) E 17 (Address, etc) OS Driver (EVEN) QFP208pin (OS_EVEN) IC4701 (A332WJ) OS Driver (ODD) QFP208pin (OS_ODD) IC4901 (A332WJ) CLK SDRAM IC490 17 (Address, et RGB 8X3 RGB 8X3 OS
LC-37HV4U LC-37HV4D LCD Panel Thermistor L RGB 8X3X2 Gradation Power (V0, V64, V96, V128, V160, V192, V224, V256) Bias Setting D/A (GRAYLEVEL) Gradation Power Bias COM Control mer Control, Image Control, Test Pattern 16 (Data) SDRAM (OS_ODD) IC4902 (A312WJ) 17 (Address, etc) R/C.
LC-37HV4U LC-37HV4D OVERALL WIRING DIAGRAM P151 5 1 6 1 G 5 3 1 P7505 F QCNW-A966WJZZ 1 P7508 14 12 B to B 1 D 5 12 CN7704 5 1 QCNW-A972WJZZ E QCNW-A973WJZZ P7507 QCNW-A975WJZZ QCNW-A967WJZZ INVERTER-1 PWB 1 4 1 1 2 1 MAIN PWB CN7707 7 1 CN2004 QCNW-A969WJZZ P7506 QCNW-A481WJZZ P152 QCNW-A480WJZZ KEY PWB QCNW-A481WJZZ QCNW-A976WJZZ H 8 CN2002 1 6 QCNW-A965WJZZ P7555 7 1 4 CN3701 1 1 C 4 P7554 3 CN4702 CN3702 2 1 1 QCNW-A970WJZZ INVERTER-2 PWB POWER
5 6 QCNW-B063WJZZ QCNW-A480WJZZ QCNW-A481WJZZ LC-37HV4U LC-37HV4D 2 1 2 3 4 5 6 3X Gate Source Driver 3X Gate Source Driver 3X Gate Source Driver 3X Gate Source Driver 3X Gate Source Driver 3X Gate Source Driver To LCD Panel 1 QCNW-B010WJZZ P7616 6 1 6 3 P7615 CN7705 14 1 INVERTER-3 PWB 12 WB P7618 CN2003 1 P7617 1 1 12 B to B QCNW-A971WJZZ ZZ 1 12 P7645 QCNW-A968WJZZ QCNW-B088WJZZ 1 12 2 1 P3802 2 1 INVERTER-4 PWB AUDIO PWB P3801 1 P7647 P3811 3 1 4 2 1 P7644 SPEAKER-
LC-37HV4U LC-37HV4D DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. When the exclusive-use AC adapter is used, the colour bar signal of colour bar generator for service is input to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 kΩ/V tester. WAVEFORM MEASUREMENT CONDITION: 1.
LC-37HV4U LC-37HV4D Ë R/C, LED Unit (Display) H G F E D C B A 1 2 3 4 35 5 6
LC-37HV4U LC-37HV4D Ë MAIN Unit-1/9 (Display) H G F E D C B A 1 2 3 4 5 6 36 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 37 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-2/9 (Display) H G F E D C B A 1 2 3 4 5 6 38 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 39 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-3/9 (Display) H G F E D C B A 1 2 3 4 5 6 40 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 41 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-4/9 (Display) H G F E D C B A 1 2 3 4 5 6 42 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 43 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-5/9 (Display) H G F E D C B A 1 2 3 4 5 6 44 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 45 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-6/9 (Display) H G F E D C B A 1 2 3 4 5 6 46 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 47 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-7/9 (Display) H G F E D C B A 1 2 3 4 5 6 48 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 49 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-8/9 (Display) H G F E D C B A 1 2 3 4 5 6 50 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 51 16 17 18 19
LC-37HV4U LC-37HV4D Ë MAIN Unit-9/9 (Display) H G F E D C B A 1 2 3 4 5 6 52 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 53 16 17 18 19
LC-37HV4U LC-37HV4D Ë AUDIO Unit-1/2 (Display) H G F E D C B A 1 2 3 4 5 6 54 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 55 16 17 18 19
LC-37HV4U LC-37HV4D Ë AUDIO Unit-2/2 (Display) H G F E D C B A 1 2 3 4 5 6 56 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 57 16 17 18 19
LC-37HV4U LC-37HV4D Ë INVERTER-1 Unit (Display) H G F E D C B A 1 2 3 4 58 5 6
LC-37HV4U LC-37HV4D Ë INVERTER-2 Unit (Display) H G F E D C B A 1 2 3 4 59 5 6
LC-37HV4U LC-37HV4D Ë INVERTER-3 Unit (Display) H G F E D C B A 1 2 3 4 60 5 6
LC-37HV4U LC-37HV4D Ë INVERTER-4 Unit (Display) H G F E D C B A 1 2 3 4 61 5 6
LC-37HV4U LC-37HV4D Ë Power Unit (Display) H G F E D C B A 1 2 3 4 5 6 62 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 63 16 17 18 19
LC-37HV4U LC-37HV4D Ë KEY Unit (Display) H G F E D C B A 1 2 3 4 64 5 6
LC-37HV4U LC-37HV4D Ë SPEAKER-L Unit (Display) H G F E Ë SPEAKER-R Unit (Display) D C B A 1 2 3 4 65 5 6
LC-37HV4U LC-37HV4D PRINTED WIRING BOARD ASSEMBLIES Ë Display H G F E D C B MAIN Unit (Side-A) A 1 2 3 4 5 6 66 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 67 16 17 18 19
LC-37HV4U LC-37HV4D Ë Display H SC4603 SC4601 FL4515 R4515 R4505 Q7704 C4906 C C4903 C R IC4901 R4929 C4310 C4309 C C R4904 C4904 C C4308 C4905 R4310 TP4302 C4908 L7701 R R TP4902 CN4301 R4902 FDC5 R2258 TP2205 FL2211 R2236 R2254 R2256 R2295 R2294 R2264 X2201 Q2217 FDC15 TP2241 CN2002 B TP2237 MAIN Unit (Chip Parts Side-A) A 1 2 3 4 5 6 68 7 8 9 FL2214 R2290 FL2209 FL2210 R2257 Q2218 FDC1 C2211 TP2204 R2237 L7705 C7725 C7708 TP2203 R2251 R2252
LC-37HV4U LC-37HV4D SC4604 TP2240 FL4510 TP4514 FL4606 C4608 R4213 R4203 C4727 C4704 FDC3 R4142 R4154 R4161 C4122 CN7705 R4138 R4134 R4137 R4133 R4152 R4151 C4101 C4107 TP2019 TP2017 R4105 R4104 C4129 C4108 C4111 TP2020 TP2018 TP2016 R4710 R4709 C2021 R2069 R2068 IC2010 C2029 R2063 R2062 R2006 R2056 TP2014 TP2010 C2016 TP2011 R2046 IC2003 FDC8 R2011 D2010 R2019 CN7703 C2022 C2024 R2008 R2018 R2017 C2009 Q2001 IC2001 C2004 R2216 R2004 R7728 D2004 X2001 D2003
LC-37HV4U LC-37HV4D Ë Display H G F E D C B MAIN Unit (Side-B) A 1 2 3 4 5 6 70 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 71 16 17 18 19
LC-37HV4U LC-37HV4D Ë Display H TL4682 TL4677 TL4688 TL4686 TL4685 TL4681 TL4679 TL4675 TL4545 TL4543 TL4687 TL4684 TL4690 TL4576 TL4540 TL4573 FDC14 TL4577 TL4557 TL4553 TL4565 TL4562 TL4548 TL4658 TL4655 TL4672 TL4650 TL4671 TL4667 TL4663 TL4659 TL4547 TL4542 TL4566 TL4560 TL4556 TL4546 TL4568 TL4564 TL4558 TL4554 TL4552 TL4549 TL4538 TL4575 TL4572 TL4569 TL4661 TL4683 TL4680TL4678 TL4674 TL4676 TL4539 TL4578 TL4673 TL4541 C4605 TL4574 TL4559 TL4544 TL4571 TL4567 TL4561 TL4555 TL4
LC-37HV4U LC-37HV4D TL4637 TL4633 TL4641 TL4640 TL4636 TL4632 TL4508 TL4507 TL4533 TL4536 R4534 TL4642 TL4646 C4601 C4603 TL4537 TL4532 X4501 TL4529 TL4526 TL4520 TL4514 TL4511 TL4519 TL4515 TL4510 TL4525 TL4523 TL4505 C4539 R4533 R4532 TL4643 TL4634 TL4639 TL4635 TL4501 TL4502 TL4647 TL4509 TL4504 TL4530 TL4516 TL4528 TL4524 TL4513 TL4521 TL4517 FL4602 TL4601 TL4613 TL4609 TL4604 TL4619 TL4610 TL4602 TL4630 TL4625 TL4622 TL4618 TL4614 TL4606 TL4626 TL4631 TL4603 TL4628 TL4624 TL462
LC-37HV4U LC-37HV4D Ë Display H G F E D C B AUDIO Unit (Component Side) A 1 2 3 4 5 6 74 7 8 9 10
LC-37HV4U LC-37HV4D 10 11 12 13 14 15 75 16 17 18 19
1 2 3 4 C3933 5 6 76 7 C3926 C3951 C 8 9 C3917 C3923 Q3812 B AUDIO Unit (Chip Parts Side) A 10 R3938 R3948 C3937 R3937 R3942 C3936 C3934 FB3802 C3931 C3942 R3944 C3928 R3954 R3955 R3940 R3943 C3929 R3945 C3932 R3951 C3948 C3940 R3950 D3837 D3836 D3820 C3914 Q3814 C3938 C3925 R3966 L3804 R3952 C3954 D3834 D3823 R3961 R3960 D3826 FB3901 R3934 C3919 C3939 C3921 FB3803 IC3812 FB3801 D3825 R3935 Q3807 D3814 D3816 L3806 R3953 C3956 D3824 C3945
10 11 J3802 C3830 C3949 P3811 12 13 R3946 D3827 C3950 R3853 R3847 R3964 Q3804 R3905 C3908 14 77 R3856 C3841 R3860 C3857 IC3808 R3855 R3857 15 R3835 16 C3820 R3825 C3883 C3822 17 IC3802 C3818 C3827 R3830 C3838 R3843 C3840 18 R3845 R3821 R3848 R3824 C3825 C3821 R3829 R3827 C3811 C3810 C3808 R3807 D3801 R3826 C3815 IC3810 C3814 C3807 C3804 IC3809 P3812 P3803 P3802 R3850 C3816 C3829 C3817 R3836 R3820 R3838 R3818 R3819 R3841 R3814 R3812 R3816 R3817
LC-37HV4U LC-37HV4D Ë Display H G F E INVERTER-1 Unit (Component Side) D P7503 P7504 R7519 R7520 C7518 R7523 R7525 R7517 C7519 R7526 C7517 D7502 D7504 D7505 D7501 R7524 C7520 R7518 C7512 T7505 D7506 R7527 R7528 R7521 R7522 T7507 Q7514 D7503 Q7513 C C7508 L7503 FH7503 FH7505 L7504 P7508 B R7511 FH7508 C7511 FH7504 R7509 FH7506 C7514 Q7509 D7514 C7530 C7532 R7514 R7510 C7529 R7512 C7516 R7513 Q7508 Q7507 Q7511 Q7510 FH7507 C7509 C7513 C7510 R7516 C75
LC-37HV4U LC-37HV4D P7501 P7502 FDC1 R7529 R7531 C7519 C7521 R7532 D7507 D7508 R7524 R7537 R7530 C7522 R7538 D7511 C7524 C7512 T7503 T7501 Q7516 D7512 R7539 R7540 R7533 R7534 C7508 L7503 FH7501 C7504 L7502 FH7503 FH7505 R7536 L7501 C7523 Q7503 R7502 R7501 C7526 C7502 C7527 C7506 Q7502 Q7501 R7504 R7503 12 R7506 R7505 11 C7528 C7525 R7541 C7503 C7505 FH7502 Q7506 R7508 P7505 C7507 D7513 R7507 D7510 R7535 Q7505 Q7504 FH7504 FH7506 10 Q7515 D7509
LC-37HV4U LC-37HV4D Ë Display H G F E INVERTER-2 Unit (Component Side) D P7552 P7553 R7563 C7563 C7564 D7552 C7566 D7555 D7551 R7566 R7564 R7572 R7565 R7571 T7553 T7555 C Q7561 Q7560 D7553 R7573 R7574 R7567 R7568 FH7555 FH7556 L7553 B D7556 Q7555 Q7554 Q7558 Q7557 C7573 C7574 C7555 A INVERTER-2 Unit (Chip Parts Side) 1 2 3 4 5 6 80 7 8 9 10 C7556 R7562 C7571 R7556 C7572 R7555 C7561 Q7559 R7561 R7559 P7554 C7560 C7562 R7560 C7559
LC-37HV4U LC-37HV4D P7556 P7551 P7552 C7565 C7568 D7554 D7557 D7558 R7570 C7567 R7575 R7569 R7576 R7578 R7577 T7551 Q7562 T7553 D7559 R7579 R7580 C7554 L7552 P7555 Q7552 Q7551 C7570 R7581 L7551 FH7551 C7558 FH7553 Q7555 Q7554 C7569 C7552 R7551 R7558 R7554 R7553 11 Q7553 R7552 C7551 FH7552 FH7554 Q7556 C7556 R7556 R7555 10 R7557 C7553 C7555 C7571 D7560 C7557 D7561 12 13 14 15 81 16 17 18 19
LC-37HV4U LC-37HV4D Ë Display H G F E INVERTER-3 Unit (Component Side) P7618 C7620 C7624 L7613 L7614 C7622 R7638 R7637 R7632 Q7624 Q7623 T7615 C7618 R7635 R7633 R7634 C7629 C7630 C7628 R7629 A INVERTER-3 Unit (Chip Parts Side) FH7613 FH7615 C7626 FH7617 R7631 R7630 FH7614 FH7616 R7622 Q7618 Q7617 C7608 C7607 C7609 Q7620 10 9 C7621 R7621 R7619 FH7618 R7625 C7625 C7619 C7610 R7627 82 D7615 D7614 R7628 FDC2 P7613 P7614 8 7 6 5 4 3 2 1 R7636 D761
LC-37HV4U LC-37HV4D P7616 R7681 D7621 R7682 T7611 Q7626 Q7625 R7680 R7679 C7633 C7632 R7675 R7639 R7640 C7631 83 Q7611 R7684 R7683 R7678 R7677 T7613 C7618 P7611 P7612 Q7612 L7611 C7614 L7612 D7622 19 18 17 16 15 C7603 Q7614 Q7615 FH7613 C7622 D7620 R7676 R7613 FH7611 C7617 C7613 C7616 C7606 P7615 FH7614 FH7615 D7619 C7634 R7618 C7611 R7611 Q7613 R7614 R7612 C7612 D7623 FH7616 D7618 D7617 Q7616 C7605 14 13 12 11 10 R7615 FH7612 R7617 R7616 C7604 R
LC-37HV4U LC-37HV4D Ë Display H G F E INVERTER-4 Unit (Component Side) P7644 C7645 L7642 C7652 T7643 T7645 R7656 C7654 D7642 D7644 R7659 R7660 C7655 R7655 R7653 R7654 FDC1 P7642 P7643 P7648 A INVERTER-4 Unit (Chip Parts Side) 1 2 3 4 5 6 84 7 8 9 10 C7661 Q7644 C7648 FH7643 L7643 FH7645 Q7645 C7664 Q7647 Q7648 P7646 C7653 D7641 R R C7663 C B C7662 C7650 R7649 FH7644 FH7646 Q7649 C7649 C7651 R7652 R7650 R7651 D
LC-37HV4U LC-37HV4D C7660 C7644 C7643 D7650 Q7641 Q7642 L7641 FH7641 P7645 D7649 D7643 D7646 Q7652 Q7650 Q7651 T7641 R7667 R7665 R7666 C7657 C7658 D7648 C7656 R7661 85 R7643 R7644 R7671 C7647 T7643 R7668 R7662 19 18 17 16 15 14 13 Q7643 R7647 C7661 Q7644 P7641 P7642 C7659 Q7645 R7669 R7658 R7663 D7647 D7645 FH7642 P7647 C7662 D7651 R7670 R7657 R7664 12 11 10 R7648 R7642 Q7646 R7646 C7642 R7641 C7641 C7646 R7645 C7645
LC-37HV4U LC-37HV4D Ë Display H G F E D C B A POWER Unit (Component Side) 1 2 3 4 86 5 6
LC-37HV4U LC-37HV4D Ë Display H G F E D C B A POWER Unit (Wiring Side) 1 2 3 4 87 5 6
LC-37HV4U LC-37HV4D Ë Display H G SPEAKER-L Unit (Component Side) C204 E C201 J201 D202 FB201 C203 P205 P201 P203 FB202 D201 F SPEAKER-L Unit (Chip Parts Side) D SPEAKER-R Unit (Component Side) C206 C202 J202 D204 FB203 C205 P206 B P202 P204 FB204 D203 C SPEAKER-R Unit (Chip Parts Side) A 1 2 3 4 88 5 6
LC-37HV4U LC-37HV4D Ë Display H G F E KEY Unit (Component Side) D D150 S154 S155 R152 D152 S153 D151 S152 R151 S151 R150 S150 S156 C B C150 R153 P153 P152 P151 A KEY Unit (Chip Parts Side) 1 2 3 4 89 5 6
LC-37HV4U LC-37HV4D Ë Display H G R/C, LED Unit (Component Side) (QPWBSB813WJN1) F E Q101 R102 R103 R116 R113 R114 Q106 Q102 R108 R106 R110 R105 Q105 R109 Q103 C102 Q104 D101 R107 C105 C103 C101 R104 C106 R101 D D104 R115 R111 C104 P101 D103 IC101 RMC101 P102 R/C, LED Unit (Chip Parts Side) (QPWBSB813WJN1) C B A 1 2 3 4 90 5 6
LC-37HV4U LC-37HV4D Ref. No. ★ Part No. Description Code Ref. No. Part No. ★ Description Code PARTS LIST LISTE DES PIECES PARTS REPLACEMENT CHANGE DES PIECES Replacement parts which have these special safety characteristics identified in this manual; electrical components having such features are identified by å and shaded areas in the Replacement Parts Lists and Schematic Diagrams.
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LC-37HV4U LC-37HV4D Ref. No. Part No. ★ Description Code Ref. No. DUNTKB810DE02 (LC-37HV4U) DUNTKB810DE04 (LC-37HV4D) INVERTER-3 Unit (Display) (Continued) QCNW-A968WJZZ QCNW-B010WJZZ QCNW-B250WJZZ J Connecting Cord (POW-INV3/4) J Connecting Cord (MAIN-INV3) J Connecting Cord (INV1-INV3) ★ Part No.
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LC-37HV4U LC-37HV4D Ref. No. ★ Part No. Description Code Ref. No. DUNTKB814DE02 (LC-37HV4U) DUNTKB814DE04 (LC-37HV4D) KEY Unit (Display) RH-EX0879CEZZY RH-EX0879CEZZY RH-EX0879CEZZY C150 VCKYCY1HF104ZY J 0.
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60 A 1 2 3 112 4 1-4 1-8 3-4 1-2 36 1-6 1-7 1-5 61 39 35 68 23 5-23 67 33 5-16 5-1 5-20 5-17 7-1 5-17 15 7 31 5-24 5-7 14 7-2 66 5-27 5 13 49 5-14 5-17 5-17 64 A 68 50 5-5 30 68 52 68 5-17 19 11 59 46 5-15 5-13 5-11 40 23 64 47 32 6-1 34 6 48 24 66 68 6-2 53 25 43 68 2-11 5-8 12 2 17 16 5-9 45 29 66 18 27 41 68 5-6 26 5-25 5-26 5-10 10 28 67 66 5-12 2-9 38 13 2-8 65 44 66 2-10 2-1 42 51 2-11 2-3
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LC-37HV4U LC-37HV4D PACKING OF THE SET Packing Case(for Accessory) (SPAKFA237WJZZ) Packing Case (SPAKCA491WJZZ:LC-37HV4U) (SPAKCA529WJZZ:LC-37HV4D) Operation Manual (TiNS-A529WJZZ:LC-37HV4U) (TiNS-A579WJZZ:LC-37HV4D) Wire Holder (Large), x1 (LHLDW0110CEZZ) Wire Holder (Small), x2 (LHLDZ0139CEZZ) Speaker Screw, x4 (XBBSF40P25000) Remote Control Unit (RRMCGA037WJSA) AC Cord (QACCD3097CEPZ:LC-37HV4U) (QACCZA022WJPZ:LC-37HV4D) (QACCDA019WJPZ:LC-37HV4U) Stand(for AVC System) (GDAi-A059WJSA) Stand Cushion, x4
LC-37HV4U LC-37HV4D COPYRIGHT © 2003 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. TQ1531-S May. 2003 Printed in Japan Design and Production Information Design : Japan Production : Japan SY.
