Page 1: Service Manual
MAIN BLOCK DIAGRAM.......6-3 PRECAUTION.............i POWER BLOCK DIAGRAM ......6-4 Precautions for using lead-free solder ....ii WIRING DIAGRAM (LC-32X20E/S/RU) ..6-5 WIRING DIAGRAM (LC-37X20E/S/RU) ..6-6 CHAPTER 1. OPERATION MANUAL SPECIFICATIONS ......... 1-1 CHAPTER 7. PRINTED WIRING BOARD OPERATION MANUAL ......
Page 2: Safety Precaution
LC-32X20E/S/RU, LC-37X20E/S/RU LC32X20E 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 LC-32X20E/S/RU, LC-37X20E/S/RU 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 4: Specifications
LC-32X20E/S/RU, LC-37X20E/S/RU CHAPTER 1. LC32X20E OPERATION MANUAL Service Manual [1] SPECIFICATIONS 1 – 1...
Page 5: Operation Manual
LC-32X20E/S/RU, LC-37X20E/S/RU [2] OPERATION MANUAL 1 – 2...
Page 6 LC-32X20E/S/RU, LC-37X20E/S/RU 1 – 3...
Page 7 LC-32X20E/S/RU, LC-37X20E/S/RU 1 – 4...
Page 8 LC-32X20E/S/RU, LC-37X20E/S/RU 1 – 5...
Page 9 LC-32X20E/S/RU, LC-37X20E/S/RU 1 – 6...
Page 10: Dimensions
LC-32X20E/S/RU, LC-37X20E/S/RU [3] DIMENSIONS Unit: mm 1 – 7...
Page 11 LC-32X20E/S/RU, LC-37X20E/S/RU CHAPTER 2. LC32X20E REMOVING OF MAJOR PARTS Service Manual [1] REMOVING OF MAJOR PARTS (LC-32X20E/S/RU) 1. Remove the 3 lock screws , 4 lock screws , 2 lock screws and the 9 lock screws . Detach the Rear Cabinet.
Page 12 LC-32X20E/S/RU, LC-37X20E/S/RU 2. Remove all the connectors from PWBs. Detach the KEY COVER Unit. KEY COVER Wire "KM" #Place Wire "KM" between SHEILED and Key PWB Wire "KM" KEY COVER Unit Wire "SP" to WH FOR Wire "SP" SP-L lead to WH...
Page 13 LC-32X20E/S/RU, LC-37X20E/S/RU 3. Remove the 2 lock screws and detach the Speaker L/R. SP-L SP-R 4. Remove all the connectors from PWBs. Wire "RA" Wire "RA" R/C, LED PWB R/C, LED PWB Front R/C, LED PWB (with wire) Wire "SPE" to WH Wire "RA"...
Page 14 LC-32X20E/S/RU, LC-37X20E/S/RU 6. Remove the 2 lock screws , 6 lock screws and the 6 lock hooks . Detach the LCD Panel Module. #Unshape Wire "SPE" TEMPORARY shaping when insutalling CAB-A, and Shape to WH on OBON Wire "SPE" TEMPORARY shaping...
Page 15 LC-32X20E/S/RU, LC-37X20E/S/RU 7. Remove the 1 lock screw and detach the Bottom Cover. #Caution Don't make mistake Screw Hole BOTTOM COVER 2 – 5...
Page 16 LC-32X20E/S/RU, LC-37X20E/S/RU 8. Remove the 2 lock screws and detach the MINI AV Unit. Detach the Conductive Tape. Remove all the connectors from PWBs. Wire "US" to WH #Caution Don't protrude Wire "US" ,"VD" to this area Conductive Tape #For Prevention sandwitch Wire with CAB-B, Push Wire "VD"...
Page 17 LC-32X20E/S/RU, LC-37X20E/S/RU 9. Remove all the connectors from PWBs. Wire "LB" to WH Wire "LW","FR" to WH Wire "LW" Wire "FR" Wire "PL" Wire "LB" Wire "LA" 2 – 7...
Page 18 LC-32X20E/S/RU, LC-37X20E/S/RU 10.Remove the 14 lock screws and detach the Chassis Tray. CHASSIS TRAY 11.Remove the 4 lock screws and detach the LCD Control Cover. Remove the 5 lock screws and detach the Stand Angle Sub Ass’y. 32 LCD PANEL...
Page 19 LC-32X20E/S/RU, LC-37X20E/S/RU 12.Remove the 4 lock screws and detach the Stand Support Angle. Back Side STND SPPRT ANG Back Side STAND ANG 13.Remove the 4 lock screws , 8 lock screws and the 1 lock screw . Detach the Main Shield.
Page 20 LC-32X20E/S/RU, LC-37X20E/S/RU 14.Remove all the connectors from PWBs. B to B connection Pull same time Wire "KM" Wire "FR","LW" to WH Wire Wire "LB" to WH Wire "FR" Wire "LB" Wire "LA" Wire "PL" Wire "US" Wire "RA" to WH Wire "RA"...
Page 21 LC-32X20E/S/RU, LC-37X20E/S/RU [2] REMOVING OF MAJOR PARTS (LC-37X20E/S/RU) 1. Remove the 2 lock screws , 4 lock screws , 3 lock screws , 6 lock screws and the 4 lock screws . Detach the Rear Cabinet. SHEET FOR BOSS REAR CABINET...
Page 22 LC-32X20E/S/RU, LC-37X20E/S/RU 2. Detach the KEY COVER Unit. Remove all the connectors from PWBs. Wire "KM" KEY COVER Unit #Place Wire "KM" between SHEILED and Key PWB Wire "SP-L" Wire "SP-L" Wire "SP-L" Wire "SP-R" Wire "SP-R" 2 – 12...
Page 23 LC-32X20E/S/RU, LC-37X20E/S/RU 3. Remove the 2 lock screws and detach the Speaker L/R. Speaker R Speaker L 4. Remove all the connectors from PWBs. R/C, LED PWB (with wire) Wire "RA" Wire "RA" from OBON Wire "RA" to WH R/C, LED PWB Front side...
Page 24 LC-32X20E/S/RU, LC-37X20E/S/RU 6. Remove the 9 lock screws , 2 lock screws and the 6 lock hooks . Detach the LCD Panel Module. FRONT CABINET 2 – 14...
Page 25 LC-32X20E/S/RU, LC-37X20E/S/RU 7. Remove the 1 lock screw and detach the Bottom Cover. Please do not make a mistake in a place to fix with a screw. BOTTOM COVER 2 – 15...
Page 26 LC-32X20E/S/RU, LC-37X20E/S/RU 8. Remove all the connectors from PWBs. Wire "SP-L" to WH for Wire "SP" Wire "SP" Wire "SP-R" to WH Wire "LA","LB" to WH Wire "LA" Wire "LB" Wire "LB" Wire "LA" 2 – 16...
Page 27 LC-32X20E/S/RU, LC-37X20E/S/RU Wire "LB" to WH Wire "LB" Wire "LW" Wire "LB" Wire "FR" Wire "PL" Wire "FR","LW" to WH Wire "LB" Wire "LW" Wire "PL" Wire "FR" Wire "LW" Wire "LB" Wire "FR" Wire "PL" 2 – 17...
Page 28 LC-32X20E/S/RU, LC-37X20E/S/RU Wire "US" for Wire "RA" Wire "VD" Wire "VD" Wire "RA" Wire "US" Open side 9. Remove the 2 lock screws and detach the MINI AV Unit. WS MINI AV COV 2 – 18...
Page 29 LC-32X20E/S/RU, LC-37X20E/S/RU 10.Remove the 4 lock screws and detach the LCD Control Cover. Detach the 2 Conductive Tapes. Remove the 14 lock screws and detach the Chassis Tray. CONDUCTIVE TAPE LCD CNTROL COVER CHASSIS TRAY CONDUCTIVE TAPE 2 – 19...
Page 30 LC-32X20E/S/RU, LC-37X20E/S/RU 11.Remove the 5 lock screws and detach the Stand Angle Sub Ass’y. 37 LCD PANEL STAND ANGLE SUB ASSY 12.Remove the 4 lock screws and detach the Stand Support Angle. STAND SPPRT ANG Back side STAND ANG 2 – 20...
Page 31 LC-32X20E/S/RU, LC-37X20E/S/RU 13.Remove all the connectors from PWBs. Wire Wire "PD" Wire "US" to WH Wire "PE" Wire "US" Wire "RA" Wire "RA" to WH 14.Remove the 4 lock screws , 8 lock screws and the 1 lock screw . Detach the Main Shield.
Page 32 LC-32X20E/S/RU, LC-37X20E/S/RU 15.Remove all the connectors from PWBs. B to B connection Pull same time Wire "KM" Wire "FR","LW" to WH Wire "LB" to WH Wire "FR" Wire "LB" Wire Wire "LA" Wire "PL" Wire "US" Wire "RA","PD" to WH Wire Wire "RA"...
Page 33: Adjustment Procedure
LC-32X20E/S/RU, LC-37X20E/S/RU CHAPTER 3. LC32X20E ADJUSTMENT PROCEDURE Service Manual [1] ADJUSTMENT PROCEDURE 1. Adjustment method after PWB and/or IC replacement due to repair The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following procedure.
Page 34 LC-32X20E/S/RU, LC-37X20E/S/RU 2. Entering and exiting the adjustment process mode 1. Press the “POWER” key on the set of running TV set to force off the power. 2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.
Page 35: Adjustment Process Mode Menu
LC-32X20E/S/RU, LC-37X20E/S/RU 5. 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.) 1/33 [INFO] MAIN Version Main software version BOOT Version BOOT Version.
Page 36 LC-32X20E/S/RU, LC-37X20E/S/RU Page Line Item Description Remarks (adjustment detail, etc.) 7/33 [HDTV] HDTV ADJ Enter HDTV video level adjustment HDTV Y GAIN HDTV Y GAIN adjustment value HDTV CB GAIN HDTV Cb adjustment value HDTV CR GAIN HDTV Cr adjustment value...
Page 37 LC-32X20E/S/RU, LC-37X20E/S/RU Page Line Item Description Remarks (adjustment detail, etc.) 14/33 [MGXX2] MG4R W/B adjustment, gradation 4R adjustment value MG4G W/B adjustment, gradation 4G adjustment value MG4B W/B adjustment, gradation 4B adjustment value MG5R W/B adjustment, gradation 5R adjustment value...
Page 38 LC-32X20E/S/RU, LC-37X20E/S/RU Page Line Item Description Remarks (adjustment detail, etc.) 21/33 [M OPC2] OPC LDUTY12 OPC LDUTY13 OPC LDUTY14 OPC LDUTY15 OPC LDUTY16 OPC LDUTY17 OPC LDUTY18 OPC LDUTY19 OPC LDUTY20 OPC LDUTY21 OPC LDUTY22 22/33 [M OPC3] OPC LDUTY23...
Page 39 LC-32X20E/S/RU, LC-37X20E/S/RU Page Line Item Description Remarks (adjustment detail, etc.) 26/33 [M V6THE] V6 OS THERMO 1 V6 OS THERMO 2 V6 OS THERMO 3 V6 OS THERMO 4 V6 OS THERMO 5 V6 OS THERMO 6 V6 OS THERMO 7...
Page 40: Special Features
LC-32X20E/S/RU, LC-37X20E/S/RU 6. Special features 1. NORMAL STANDBY CAUSE (Page 1/33) Display of a cause (code) of the last standby. The cause of the last standby is recorded in EEPROM whenever possible. Checking this code will be useful in finding a problem when you repair the troubled set.
Page 41 LC-32X20E/S/RU, LC-37X20E/S/RU 8. Public Mode (Hotel Mode) 1. Starting the Public Mode • There are two following ways to display the PUBLIC Mode setting screen. 1) On the process adjustment mode screen (2/33), set the “HOTEL MODE” Flag to ON.
Page 42 LC-32X20E/S/RU, LC-37X20E/S/RU 4. Basic operation in the Public Mode or Cursor ←/→ Change or execution of the set value. Volume or Cursor ↑/↓ Movement to the selected item. Channel Decision (ok) Execution (Used by the items “Execution” and “RESET”.) PUBLIC Mode R/C Ordinary operation mode: It enters the PUBLIC Mode.
Page 43 LC-32X20E/S/RU, LC-37X20E/S/RU 6. Setting items (* Item names and selective items are expressed in English.) 1) Power ON Fixed (POWER ON FIXED) Selection “VARIABLE” or “FIXED” is selectable. (Loop is provided.) Default “VARIABLE” Function • When "FIXED" is set, “Power ON/Standby Key” of the main unit and R/C is disabled.
Page 44 LC-32X20E/S/RU, LC-37X20E/S/RU 5) R/C Operation [RC BUTTON] Selection “RESP0ND” or “NO RESPOND” is selectable. (Loop is provided.) Default RESP0ND Function R/C key operation is set. When set to “NO RESPOND”, the R/C keys are disabled in the ordinary mode. The power key (Power ON/Standby Key) is also disabled.
Page 45: Video Signal Adjustment Procedure
LC-32X20E/S/RU, LC-37X20E/S/RU 10)Mode Fixed [INPUT MODE FIXED] Selection “VARIABLE” or “FIXED” is selectable. (Loop is provided.) Default VARIABLE Function When set to “FIXED”, it is disable to switch to other channel or input after start in the set value of “Start Mode (INPUT MODE START)”.
Page 46 LC-32X20E/S/RU, LC-37X20E/S/RU 4. SECAM adjustment Adjustment point Adjustment Conditions Adjustment procedure Setting [Signal] • Feed the SECAM full field colour bar signal (75% colour saturation) to EXT1 SECAM SCART IN. Full Field Colour Bar signal [Terminal] EXT1 SCART IN Black...
Page 47: White Balance Adjustment
LC-32X20E/S/RU, LC-37X20E/S/RU 7. DVI-I adjustment (ANALOG D-sub15PIN) Adjustment point Adjustment Conditions Adjustment procedure Setting [Signal] • Feed the XGA 60Hz 100% full field colour bar signal (100% colour satura- XGA 60Hz tion) to EXT7 PC IN. 100% Full Field Colour Bar sig-...
Page 48 LC-32X20E/S/RU, LC-37X20E/S/RU 5) Repeat step 4) for points 4, 3, 2, and 1. [Adjustment reference standard value] Adjustment spec ± 0.002 Inspection spec ± 0.004 (point 1 and 2) Adjustment spec ± 0.001 Inspection spec ± 0.002 (Excluding the above-mentioned) * Adjusting procedure by use of [RS-232C] 1.
Page 49: Upgrading The Software
LC-32X20E/S/RU, LC-37X20E/S/RU 11. Confirmation item 1. Magi-Link Inspection The thing that the Magi-Link circuit operates is confirmed. 2. HDMI-CEC Inspection The thing that the HDMI-CEC circuit operates is confirmed. 12. Initialization to factory settings CAUTION: When the factory settings have been made, all user setting data, including the channel settings, are initialized.
Page 50 LC-32X20E/S/RU, LC-37X20E/S/RU 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 51 LC-32X20E/S/RU, LC-37X20E/S/RU CHAPTER 4. LC32X20E TROUBLESHOOTING TABLE Service Manual [1] TROUBLESHOOTING TABLE Power unit operation check. Are the power cord and harness in the unit properly connected? Connect the power cord and harness properly, and turn on the power. Is F7000 normal? Isn't FL7001, L7001, CX7000-1, Z7000, BD7000, TH7000, Z7001, IC7801, etc.
Page 52 LC-32X20E/S/RU, LC-37X20E/S/RU The sound is not emitted from the speaker though the picture has come out. No sound output in all modes? TEREMINAL UNIT: Is the audio signal output of pins (38) (L-ch) and (39) (R-ch) of Check IC1404 and its peripheral circuits.
Page 53 LC-32X20E/S/RU, LC-37X20E/S/RU No sound (during the reception of TV (DIGITAL) broadcasting) Does not the sound go out though the picture has come out when DTV is received? MAIN UNIT: Is DTV_SPDIF audio signal output from pin (T2) of IC8101 (CPU/...
Page 54 LC-32X20E/S/RU, LC-37X20E/S/RU No sound from external input devices (2) Does not the sound of the audio signal input to EXT3 go out? MINI AV_UNIT: Is audio signal output from pin (5/IN3-L), (4/IN3-R) of input termi- Check connection of between from J901 to P901 and the exter- nal J901 to pin (3), (1) of connector P901? nal input device.
Page 55 LC-32X20E/S/RU, LC-37X20E/S/RU No sound from external input devices (4) Does not the sound of the audio signal input to EXT6 (Analog) go Does not the sound of the audio signal input to EXT7 go out? out? Whether “Analog” has selected it in the Audio setup of the HDMI option is checked.
Page 56 LC-32X20E/S/RU, LC-37X20E/S/RU The audio signal is not output (1) The audio signal of UHF/VHF and DTV is not output from EXT1 (SCART). TEREMINAL UNIT: Is audio signal sent to pins (3/L-ch) and (1/R-ch) of SCART1 Check the connection to SCART1 and external devices.
Page 57 LC-32X20E/S/RU, LC-37X20E/S/RU The audio signal is not output (3) The audio signal of MONITOR is not output from EXT2 (SCART). TEREMINAL UNIT: Is audio signal sent to pins (3/L-ch) and (1/R-ch) of SCART2 Check the connection to SCART2 and external devices.
Page 58 LC-32X20E/S/RU, LC-37X20E/S/RU The audio signal is not output (5) No audio signal output from DIGITAL_AUDIO_OUTPUT terminal. TEREMINAL UNIT: Is audio signal output to pin (1) of digital sound output terminal Check D501 or peripheral circuits. D501? (B3.3V_LINE, etc.) Do pin (92) of SPDIF_MUTE_LINE [MAIN_UNIT IC9101...
Page 59 LC-32X20E/S/RU, LC-37X20E/S/RU No picture on the display (1) The picture doesn't appear in all modes. MAIN UNIT: Is LVDS signal output from 1st_channel and 2nd_channel of IC3301(VIDEO PROCESSER) in each mode? TA1_P/M (A14/B14), TB1_P/M (A15/B15), TC1_P/M (A16/B16), TD1_P/M (A18/B18), TE1_P/M (A19/B19), TCLK1_P/M (A17/B17), TA2_P/M (A20/B20), TB2_P/M (C20/D19), TC2_P/M (D20/E19), TD2_P/M (F20/G19), TE2_P/M (G20/H19), TCLK2_P/M (E20/F19) Check IC3301 and its peripheral control circuits.
Page 60 LC-32X20E/S/RU, LC-37X20E/S/RU No picture on the display (3) Does not the picture come out when DTV is received? TERMINAL UNIT: Is the voltage of regulation for a TUNER circuit and the power Each power supply circuit is checked. supply terminal of IC7507 (COFDM) supplied?
Page 61 LC-32X20E/S/RU, LC-37X20E/S/RU <External input EXT1,EXT2> No picture on the display (4) Does not the picture of the CVBS signal input to EXT1 go out? Does not the picture of the CVBS signal input to EXT2 go out? TERMINAL UNIT: <EXT1>...
Page 62 LC-32X20E/S/RU, LC-37X20E/S/RU <External input EXT1,EXT2> No picture on the display (5) Does not the picture of the R/G/B video signal input to EXT1 go out? Does not the picture of the R/G/B video signal input to EXT2 go out? TERMINAL UNIT: <EXT1>...
Page 63 LC-32X20E/S/RU, LC-37X20E/S/RU <External input EXT1,EXT2> No picture on the display (6) Does not the picture of the Y/C video signal input to EXT1 go out? Does not the picture of the Y/C video signal input to EXT2 go out? TERMINAL UNIT: <EXT1>...
Page 64 LC-32X20E/S/RU, LC-37X20E/S/RU <When EXT3 is used for external input> No picture on the display (7) Does not the picture of the composite video signal input to EXT3 go out? MINI AV UNIT: Is CVBS signal output from pin (6) in input terminal J901 to pin Check the line between J901 and P901.
Page 65 LC-32X20E/S/RU, LC-37X20E/S/RU <When EXT3 is used for external input> No picture on the display (8) Does not the picture of the Y/C video signal input to EXT3 go out? MINI AV_UNIT: Is Y/S signal input into pin (13), (11) of connector P901 from pin Check the line between J901 and P901.
Page 66 LC-32X20E/S/RU, LC-37X20E/S/RU <When EXT4 is used for external input> No picture on the display (9) Does not the picture of the HDMI signal input to EXT4 go out? MINI AV_UNIT: Is the HDMI detection function output from pin (19) of the HDMI Check between SC1503 and IC1507 (HDMI_SW) of pin (56).
Page 67 LC-32X20E/S/RU, LC-37X20E/S/RU <When EXT5/6 is used for external input> No picture on the display (10) Does not the picture of the HDMI signal input to EXT5/6 go out? MAIN UNIT: EXT5 EXT5 Is the HDMI detection function output from pin (19) of the HDMI Check between SC1501and IC1507(HDMI_SW)of pin(16).
Page 68 LC-32X20E/S/RU, LC-37X20E/S/RU <When EXT7 is used for external input> No picture on the display (11) Does not the picture of the DVI(ANALOG) video signal input to EXT7(15pin-D-SUB terminal) go out? MAIN_UNIT: Are the video signal and the synchronized signal input from pin...
Page 69 LC-32X20E/S/RU, LC-37X20E/S/RU <During external connection> No picture on the monitor (1) No picture appears on EXT1 - connected monitor during the tuner (U/V) reception. Checklist: 1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.
Page 70 LC-32X20E/S/RU, LC-37X20E/S/RU <During external connection> No picture on the monitor (2) No picture appears on EXT1 - connected monitor during the tuner (DTV) reception. Checklist: 1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.
Page 71 LC-32X20E/S/RU, LC-37X20E/S/RU <During external connection> No picture on the monitor (3) SCART2: No picture from EXT1 appears on EXT2-connected monitor. NOTE: Normally, if the screen during display is sent to EXT2, no picture is sent to EXT2. Checklist: 1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.
Page 72 LC-32X20E/S/RU, LC-37X20E/S/RU <During external connection> No picture on the monitor (4) SCART2: No picture from EXT3 appears on EXT2- connected monitor. Checklist: 1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.
Page 73: Major Ic Informations
LC-32X20E/S/RU, LC-37X20E/S/RU CHAPTER 5. LC32X20E MAJOR IC INFORMATIONS Service Manual [1] MAJOR IC INFORMATIONS 1. MAJOR IC INFORMATIONS 1.1. IC7504 (VHiTDA9886+-1Y) The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL demodulator for positive and negative modulation, including sound AM and FM processing.
Page 74 LC-32X20E/S/RU, LC-37X20E/S/RU 1.11. IC1507 (VHiSii9185+-1Q) Sil9185 is a 3-input/1-output switch compatible with HDMI1.3. • Built in Consumer Electronics Control (CEC) support • Individual control of Hot Plug Detect (HPD) for each port • 5V detect to help speed soft mute of audio during plug-in, plug-out conditions •...
Page 75 LC-32X20E/S/RU, LC-37X20E/S/RU 1.17. IC3301 (RH-IXC010WJQZQ) SVP-WX Video Processor. • Integrated HDMI Receiver • Integrated De-interlacing • Integrated ADC • SRC (Scan Rate Conversion) Improvement • PC Auto Tune • Built-in LVDS Transmitter • Scaling Engine • DNR-Digital Noise Reduction Filter •...
Page 76 LC-32X20E/S/RU, LC-37X20E/S/RU 1.22. IC7603 (9NK2633003842) DLA001DTR High voltage resonant controller. It supplies power supply voltages of INV60V/S15V/UR15V/PNL12V. • High voltage rail up to 600V. • CMOS shut down input. • Under voltage lock out. • Soft start frequency sgifting timming.
Page 77 LC-32X20E/S/RU, LC-37X20E/S/RU 2. Detailed ICs Information 2.1. IC402 (VHiBD9305AF-1Y) 2.1.1 Pin Connections and short description Pin No. Pin Name Pin Function — Timing resistor external terminal — Timing capacitor external terminal Control input terminal Gate drive output terminal — Power terminal —...
Page 78 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function DCOUT DC output for S-terminal. VOUT3 Monitor output (composit signal) COUT3/VOUT6 Monitor output (Chroma or composite signal) YOUT3/ VOUT5 Monitor output (Luminance or composite signal) PROUT2 Colour difference PR-signal output. PROUT1 PBOUT2/ COUT2 Colour difference PB-signal or chroma signal output.
Page 79 LC-32X20E/S/RU, LC-37X20E/S/RU 2.3.2 Pin Connections and short description Pin No. Pin Name Pin Function 1, 2, 12, 25, 35, 36 — No connection PVDDREG — Power terminal for regulator (PVDD) AVDD — Output terminal for 3.3V regulator INLP Analog input terminal (Lch+)
Page 80 LC-32X20E/S/RU, LC-37X20E/S/RU 2.5. IC1403 (VHiTAS3108D-1Y) 2.5.1 Block Diagram 2.5.2 Pin Connections and short description Pin No. Pin Name Pin Function AVDD — Analog power-supply input (3.3V) AVSS — Analog ground Pull-down Chip select 9, 30 DVDD — Digital power-supply input (3.3V)
Page 81 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function SCLKOUT1 Bit clock #1 out. Used to receive input serial data. SCLKOUT2 Bit clock #2 out. Used to clock output serial data. SDA1 I2C port #1 data (always a slave) SDA2 I2C port #2 data (always a slave)
Page 82 LC-32X20E/S/RU, LC-37X20E/S/RU 2.6.2 Pin Connections and short description Pin No. Pin Name Pin Function PVDD — PLL Power supply, 4.5V~5.5V. Receiver Channel 0 (Internal biased pin. Internally biased at PVDD/2). Control Mode Select. “L”: 4-wire Serial, “H”: I2C Bus Receiver Channel 1.
Page 83 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function LIN4 Lch Input 4 RIN4 Rch Input 4 LIN5 Lch Input 5 RIN5 Rch Input 5 LIN6 Lch Input 6 RIN6 Rch Input 6 PVSS — PLL Ground — External Resistor 2.7. IC1507 (VHiSii9185+-1Q) 2.7.1 Block Diagram...
Page 84 LC-32X20E/S/RU, LC-37X20E/S/RU 2.7.2 Pin Connections and short description Pin No. Pin Name Pin Function System Switching Pins 30, 50, 70 DSDA0, DSDA1, DSDA2 DDC I2C Data for respective port. 31, 51, 71 DSCL0, DSCL1, DSCL2 DDC I2C Clock for respective port.
Page 85 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function R2X0+ TMDS input Port 2 data pairs. R2X0- R2X1+ R2X1- R2X2+ R2X2- R2C+ TMDS input Port 2 clock pair. R2C- TX0+ TMDS output data pairs. TX0- TX1+ TX1- TX2+ TX2- TXC+ TMDS output clock pair.
Page 86 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function LED_SLEEP SLEEP_LED AV_LINK_O AV_LINK output ANT_POW Antenna power control EXE_LED Microprocessor operation check LED I2C_GATE I2C bus SW N_SYSRST_IN SYSTEM RESET switch detection RS_ON RS232C power control Backlight control. ERR_PNL Lamp error detection (L: error)
Page 87 LC-32X20E/S/RU, LC-37X20E/S/RU 2.9. IC3301 (RH-iXC010WJQZQ) 2.9.1 Pin Connections and short description Pin No. Pin Name Pin Function Ball Assignments for CPU Host Interface. K20, K19, K18, K17, L20, A_D[7:0] Multiplexed address and data bus powered by VDDH/VSS. L19, L18, L17...
Page 88 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function Ball Assignments for Frame Buffer Memory. D3, C3, C2, C1, A1, A2, MD[31:0] Memory data. A3, C5, A4, B5, A5, D6, A7, B7, C7, D7, D8, C8, B8, A8, D9, D10, C10,...
Page 89 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function AVSSLLPLL — 1.2V Line Lock PLL GND. Miscellaneous Ball Assignments. RESET System reset forces the chip to a known state. Active High. INTN Interrupt signal (active low). PWM0 PWM I/O. (Not connected)
Page 90 LC-32X20E/S/RU, LC-37X20E/S/RU 2.10. IC3501-2 (RH-iXC163WJQZQ) 2.10.1 Block Diagram 2.10.2 Pin Connections and short description Pin No. Pin Name Pin Function 62, 63 CK, CK The differential system clock Input. All of the inputs are sampled on the rising edge of the clock except DQ’s and DM’s that are sampled on both edges of the DQS.
Page 91 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function 89, 94, 109, 115, 116, — Ground for the input buffers and core logic. 117, 118, 124, 126, 127, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,...
Page 92 LC-32X20E/S/RU, LC-37X20E/S/RU 2.11.2 Pin Connections and short description Pin No. Pin Name Pin Function MPEG pins MOSTRT MPEG packet start MOVAL MPEG data valid 49-53, 56-58 MDO[0:4]/ MDO[5:7] MPEG data bus MOCLK MPEG clock out BKERR Block error MICLK MPEG clock in...
Page 93 LC-32X20E/S/RU, LC-37X20E/S/RU 2.13. IC7801 (9NK2510067610) 2.13.1 Pin Connections and short description Pin No. Pin Name Pin Function Inverting input of the error amplifier. The information on the output voltage of the PFC preregulator is fed into the pin through a resistor divider.
Page 94 LC-32X20E/S/RU, LC-37X20E/S/RU 2.15. IC8101 (RH-iXC011WJQZQ) 2.15.1 Pin Connections and short description Ref No. Pin Name Pin Function DAC Interface VDDZ_DAC — Digital power for DAC (+3.3V). VSSZ_DAC — Digital ground for DAC. DAC_VS DAC vsync. DAC_HS DAC hsync. DAC_CLK DAC clock...
Page 95 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function TD1P LVDS Positive Output. (Not used) TD1M LVDS Negative Output. (Not used) TCLK1P LVDS Positive clock Output. (Not used) TCLK1M LVDS Negative clock Output. (Not used) TC1P LVDS Positive Output. (Not used) TC1M LVDS Negative Output.
Page 96 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function AD23_FRA7 Flash address 7/PCI AD bus bit 23. AD16_FRA0 Flash address 0/PCI AD bus bit 16/POD host interface Card I/O output enable. IRDY_PCAS PCI bus IRDY# signal/M68K CPU interface address strobe signal.
Page 97 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function POD_CE1 Card enable. POD_CTX POD OOB TX Gapped Symbol clock. POD_DRX POD OOB RX data. POD_CD1 Card Detect. POD_IREQ Ready/IRQ POD_CRX POD OOB RX Gapped clock. POD_RESET POD Card reset signal. POD_QTX POD OOB TX Q Channel.
Page 98 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function AM21 VDB_G4 Video input/output; Green channel bit 4; IDE: IDE data bus bit 4. EJTAG: TPC[0], output as EJTAG PC Trace bus, bit 0. POD2: POD_CD2B#, the second POD interface card detect.
Page 99 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function AK25 VDB_R0 Video input/output; Red channel bit 0; IDE: IDE address bus bit 2. EJTAG: PCST[8], output as EJTAG PC Trace bus, bit 8. POD2: POD2_TS1_D1, the second POD_TS1 data[1]. AL25 VDB_R1 Video input/output;...
Page 100 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function J3, J2, J1, H1, H2, H3, H4, TS1_D[7:0] Transport Stream 1, data bus. TS1_DEN Transport Stream 1, data enable. TS1_SYNC Transport Stream 1, sync signal. TS1_CLK Transport Stream 1, clock. Memory Interface...
Page 101 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function MAA2 Memory Address line of Port A or SCAN data output. MAA3 Memory Address line of Port A or SCAN data output. MAA4 Memory Address line of Port A or SCAN data output.
Page 102 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function I2S Interface SCKIN I2S: SCK of I2S input port. (Not used) AC Link: SDATA_OUT POD2: POD_DRXB, the second POD OOB RX data. WSI2S I2S: WS of I2S input port. (Not used) AC Link: ACLINK_RSTN POD2: POD_CRXB, the second POD OOB RX gapped clock.
Page 103 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function GP14 Program IO. PWM: Pulse-Width Modulation. POD: VS1, the second POD interface voltage sense. GP13 Program IO. PWM: Pulse-Width Modulation. POD: VPP_EN#, the second POD interface slot VPP enable. GP12 Program IO.
Page 104 LC-32X20E/S/RU, LC-37X20E/S/RU Ref No. Pin Name Pin Function — — IO ground related to VDDF./Core ground related to VDDC. A31, A34, AA6, AA14, AA15, AA16, AA17, AA18, AA19, AA20, AA21, AB6, AB15, AB16, AB17, AB18, AB19, AB20, AB31, AB34, AC6, AC29, AC32, AD31, AF29,...
Page 105 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function 33, 35, 37, VSSQ — DQ Ground. 39, 54, 56, 58, 60, 82 DLL Power Supply: 1.8V ± 0.1V. VDDL — VSSL — DLL Ground. Power Supply: 1.8V ± 0.1V. 5, 12, 18, 20 —...
Page 106 LC-32X20E/S/RU, LC-37X20E/S/RU 2.17.2 Pin Connections and short description Pin No. Pin Name Pin Function 23 Address inputs DQ15/A-1 DQ15 (Data input/output, word mode), A-1(LSB Address input, byte mode) DQ14 15 Data inputs/outputs DQ13 DQ12 DQ11 DQ10 Chip Enable input Output Enable input...
Page 107 LC-32X20E/S/RU, LC-37X20E/S/RU 2.18. IC8702 (RH-iXC0150WJQZY) 2.18.1 Block Diagram 2.18.2 Pin Connections and short description Pin No. Pin Name Pin Function Voltage input to VCXO. Zero to 3.3V signal which controls the VCXO frequency. Select pin 0. Internal pull-up resistor. Select pin 1. Internal pull-up resistor.
Page 108 LC-32X20E/S/RU, LC-37X20E/S/RU 2.19. IC9101 (RH-iXC121WJN8Q) 2.19.1 Pin Connections and short description Pin No. Pin Name Pin Function D3.3V — Power supply(+3.3V) HiDTV CS0 ⋅⋅⋅ Flash N_CPLD_CS0 XERE HiDTV PCI_BUS OE# ROM_CE BOOT ROM CE input HiDTV CS1 ⋅⋅⋅ CPLD N_CPLD_CS1...
Page 109 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function GND_B — Ground CPLD_TDI PNL_WP VCOM Write Protect control signal CPLD_TMS FE_RST CE6353 reset CPLD_TCK FEPG0_COMP Sleep signal FEPG1_LOCK Signal LOCK detection FERR_UNCOR Error flag N_TS1_DEMORST TS1 demodulator reset GND_B — Ground D3.3V...
Page 110 LC-32X20E/S/RU, LC-37X20E/S/RU Pin No. Pin Name Pin Function HDMI_PLG_EN HDMI output control D3.3V — Power supply(+3.3V) MUTE_HDMI HDMI_MUTE initial value Low HPLUGOUT_A HDMI Plug Out detection HDMIKEY_WP EDIT_Write Protect N_CPLD2_RST CPLD2 reset PNL_POW Panel power control HDMI_SW_INT HDMI SW IC interrupt request...
Page 111 LC-32X20E/S/RU, LC-37X20E/S/RU 2.20.2 Pin Connections and short description Pin No. Pin Name Pin Function BOOST Gate drive voltage for the high side N-channel MOSFET. The BOOST voltage is 9 V greater than the input voltage. A 0.1-µF ceramic capacitor should be connected from this pin to the drain of the lower MOSFET.
Page 112 LC-32X20E/S/RU, LC-37X20E/S/RU 2.21. IC9602 (VHiMP2367DN-1Y) 2.21.1 Block Diagram 2.21.2 Pin Connections and short description Pin No. Pin Name Pin Function High-Side Gate Drive Boost Input. BS supplies the drive for the high-side N-Channel MOSFET switch. Connect a 0.01µF or greater capacitor from SW to BS to power the high side switch.
Page 113: Chapter 6. Block Diagram/Wiring Diagram 1] System Block Diagram
LC-32X20E/S/RU, LC-37X20E/S/RU LC32X20E CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM Service Manual [1] SYSTEM BLOCK DIAGRAM SYSTEM BLOCK DIAGRAM 6 – 1...
Page 114: Terminal Block Diagram
LC-32X20E/S/RU, LC-37X20E/S/RU [2] TERMINAL BLOCK DIAGRAM TERMINAL BLOCK DIAGRAM 6 – 2...
Page 115: Main Block Diagram
LC-32X20E/S/RU, LC-37X20E/S/RU [3] MAIN BLOCK DIAGRAM MAIN BLOCK DIAGRAM 6 – 3...
Page 116: Power Block Diagram
LC-32X20E/S/RU, LC-37X20E/S/RU [4] POWER BLOCK DIAGRAM POWER BLOCK DIAGRAM 6 – 4...
Page 117: Wiring Diagram (Lc-32X20E/S/Ru)
LC-32X20E/S/RU, LC-37X20E/S/RU [5] WIRING DIAGRAM (LC-32X20E/S/RU) WIRING DIAGRAM (LC-32X20E/S/RU) 6 – 5...
Page 118: Wiring Diagram (Lc-37X20E/S/Ru)
LC-32X20E/S/RU, LC-37X20E/S/RU [6] WIRING DIAGRAM (LC-37X20E/S/RU) WIRING DIAGRAM (LC-37X20E/S/RU) 6 – 6...
Page 119: Main Unit Printed Wiring Board
LC-32X20E/S/RU, LC-37X20E/S/RU LC32X20E CHAPTER 7. PRINTED WIRING BOARD Service Manual [1] MAIN UNIT PRINTED WIRING BOARD MAIN Unit (Side A) 7 – 1...
Page 120 LC-32X20E/S/RU, LC-37X20E/S/RU Chip Parts Side A MAIN Unit ( R1133 R1134 P4501 P4502 P1101 LUG1101 X8701 P8102 R8706 C8715 R8729 R8701 R9625 C8707 R8714 C8706 FB8102 FB8701 R8723 FB8101 C8117 C8136 C8135 C8146 R8149 R9306 R9307 R8152 R8153 R9335 R1802...
Page 121 LC-32X20E/S/RU, LC-37X20E/S/RU Side B MAIN Unit ( 7 – 3...
Page 122 LC-32X20E/S/RU, LC-37X20E/S/RU Chip Parts Side B MAIN Unit ( C8391 C8390 FB1101 C1136 C8392 R4515 C8384 C8383 C8378 C8377 R8712 R8722 C8718 FB8111 C8370 C8717 C8126 C8369 C8368 C8131 C8374 R8104 R8162 R9302 R9301 R8174 R9609 C8702 D9601 D1801 R8161...
Page 123: Terminal Unit Printed Wiring Board
LC-32X20E/S/RU, LC-37X20E/S/RU [2] TERMINAL UNIT PRINTED WIRING BOARD Side A TERMINAL Unit ( 7 – 5...
Page 124 LC-32X20E/S/RU, LC-37X20E/S/RU Chip Parts Side A TERMINAL Unit ( R 438 C433 LUG502 LUG503 Q407 IC405 S C501 IC404 C434 D411 D412 C428 FB406 C423 C424 FB404 C7513 IC7502 IC502 L7504 C617 Q516 Q518 Q520 C501 L502 R 7508 C7568...
Page 125 LC-32X20E/S/RU, LC-37X20E/S/RU Side B TERMINAL Unit ( 7 – 7...
Page 126: R/C, Led Unit Printed Wiring Board
LC-32X20E/S/RU, LC-37X20E/S/RU [3] R/C, LED UNIT PRINTED WIRING BOARD [4] KEY UNIT PRINTED WIRING BOARD KEY Unit (Side A) KEY Unit (Chip Parts Side A) R/C, LED Unit (Side A) R/C, LED Unit (Chip Parts Side A) S155 R153 D152...
Page 127: Mini Av Unit Printed Wiring Board
LC-32X20E/S/RU, LC-37X20E/S/RU [5] MINI AV UNIT PRINTED WIRING BOARD C832 R 820 VA801 VA802 R 908 R 907 D903 C827 R 821 D905 D904 D806 R 912 R 911 LUG901 P901 P801 MINI AV Unit (Chip Parts Side-A) MINI AV Unit (Side-A)
Page 128 LC-32X20E/S/RU, LC-37X20E/S/RU MINI AV Unit (Side-B) 7 – 10...
Page 129: Power Unit Printed Wiring Board
LC-32X20E/S/RU, LC-37X20E/S/RU [6] POWER UNIT PRINTED WIRING BOARD POWER Unit (Side-A) 7 – 11...
Page 130 LC-32X20E/S/RU, LC-37X20E/S/RU POWER Unit (Side-B) 7 – 12...
Page 131: Description Of Schematic Diagram
LC-32X20E/S/RU, LC-37X20E/S/RU LC32X20E CHAPTER 8. SCHEMATIC DIAGRAM Service Manual [1] 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 230V. 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 132: Schematic Diagram
LC-32X20E/S/RU, LC-37X20E/S/RU [2] SCHEMATIC DIAGRAM MAIN Unit-1 8 – 2...
Page 133 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-2 8 – 3...
Page 134 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-3 8 – 4...
Page 135 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-4 8 – 5...
Page 136 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-5 8 – 6...
Page 137 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-6 8 – 7...
Page 138 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-7 8 – 8...
Page 139 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-8 8 – 9...
Page 140 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-9 8 – 10...
Page 141 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-10 8 – 11...
Page 142 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-11 8 – 12...
Page 143 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-12 8 – 13...
Page 144 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-13 8 – 14...
Page 145 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-14 8 – 15...
Page 146 LC-32X20E/S/RU, LC-37X20E/S/RU MAIN Unit-15 8 – 16...
Page 147 LC-32X20E/S/RU, LC-37X20E/S/RU TERMINAL Unit-1 AND SHADED COMPONENTS=SAFETY RELATED PARTS 8 – 17...
Page 148 LC-32X20E/S/RU, LC-37X20E/S/RU TERMINAL Unit-2 8 – 18...
Page 149 LC-32X20E/S/RU, LC-37X20E/S/RU TERMINAL Unit-3 8 – 19...
Page 150 LC-32X20E/S/RU, LC-37X20E/S/RU TERMINAL Unit-4 8 – 20...
Page 151 LC-32X20E/S/RU, LC-37X20E/S/RU TERMINAL Unit-5 8 – 21...
Page 152 LC-32X20E/S/RU, LC-37X20E/S/RU R/C, LED Unit 8 – 22...
Page 153 LC-32X20E/S/RU, LC-37X20E/S/RU KEY Unit 8 – 23...
Page 154 LC-32X20E/S/RU, LC-37X20E/S/RU MINI AV Unit 8 – 24...
Page 155 LC-32X20E/S/RU, LC-37X20E/S/RU POWER Unit AND SHADED COMPONENTS=SAFETY RELATED PARTS 8 – 25...
Page 156 LC-32X20E/S/RU, LC-37X20E/S/RU — M E M O — 8 – 26...
Page 157 LC-32X20E/S/RU, LC-37X20E/S/RU PartsGuide PARTS GUIDE No. S97S9LC32X20E LCD COLOUR TELEVISION LC-32X20E/S/RU LC-37X20E/S/RU MODELS CONTENTS PRINTED WIRING BOARD DUNTKE266FM01 (KEY Unit) ASSEMBLIES DUNTKE306FM01(MINI AV UNIT) LCD PANEL AND TUNER (NOTE: THE PARTS HERE SHOWN ARE CABINET PARTS SUPPLIED AS AN ASSEMBLY BUT (LC-32X20E/S/RU) NOT INDEPENDENTLY.)
Page 158 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [1] PRINTED WIRING BOARD ASSEMBLIES MAIN Unit DUNTKE237FM02 TERMINAL Unit DUNTKE238FM01 R/C, LED Unit DUNTKE264FM01 KEY Unit DUNTKE266FM01 MINI AV Unit DUNTKE306FM01 RDENCA230WJQZ Power Unit [2] LCD PANEL AND TUNER (NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPENDENTLY.)
Page 159 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) C1597 Capacitor 1000p 50V Ceramic VCKYCZ1HB102KY C1599 Capacitor 1000p 50V Ceramic VCKYCZ1HB102KY C1608 Capacitor 10 10V Ceramic RC-KZA195WJZZY C1613 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C1614 Capacitor 1000p 50V Ceramic...
Page 160 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) C3348 Capacitor 10 10V Ceramic RC-KZA195WJZZY C3349 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C3350 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C3351 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C3352 Capacitor 0.1 16V Ceramic...
Page 161 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) C4404 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C4405 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C4406 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C4408 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C4410 Capacitor 0.1 16V Ceramic...
Page 162 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) C8178 Capacitor 2700p 50V Ceramic VCKYCZ1HB272KY C8179 Capacitor 2700p 50V Ceramic VCKYCZ1HB272KY C8180 Capacitor 2700p 50V Ceramic VCKYCZ1HB272KY C8181 Capacitor 2700p 50V Ceramic VCKYCZ1HB272KY C8182 Capacitor 2700p 50V Ceramic...
Page 163 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) C8346 Capacitor 10 10V Ceramic RC-KZA195WJZZY C8347 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C8348 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C8349 Capacitor 0.1 16V Ceramic VCKYCZ1CF104ZY C8350 Capacitor 0.1 16V Ceramic...
Page 164 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) C9611 Capacitor 1 25V Ceramic RC-KZA114WJZZY C9612 Capacitor 3300p 50V Ceramic VCKYCZ1HB332KY C9613 Capacitor 6800p 25V Ceramic VCKYCZ1EB682KY C9614 Capacitor 100p 50V Ceramic VCCCCZ1HH101JY C9615 Capacitor 0.1 16V Ceramic...
Page 165 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) D9601 Diode DAN217UT106 VHDDAN217U+-1Y D9602 Diode 1SS355TE-17 VHD1SS355//-1Y D9604 Diode D1FH3 VHDD1FH3+++-1Y D9605 Diode 1SS355TE-17 VHD1SS355//-1Y D9606 Zener Diode UDZSNPTE-176.2B RH-EX1395CEZZY D9607 VHD1SS355//-1Y Diode 1SS355TE-17 D9608...
Page 166 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) IC1503 IC RGB (PC)_EXT7 RH-IXC287WJQZS IC1504 IC NJM2750M(TE2) VHINJM2750M-1Y IC1505 IC HDMI_EXT4 RH-IXC284WJQZS IC1506 IC TC7W08FU(TE12L,F) VHITC7W08U/-1Y IC1507 IC SII9185CTU VHISII9185+-1Q IC1508 VHIAHC1G08W-1Y IC 74AHC1G08GW/G,125 IC1805...
Page 167 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) L9601 Coil RCILPA086WJZZY L9602 Coil RCILPA084WJZZY L9603 Coil RCILPA084WJZZY L9604 Coil RCILPA084WJZZY L9605 Coil RCILPA086WJZZY L9606 RCILPA765WJQZY Coil LUG1101 QLUGHA006WJZZY LUG1102 QLUGHA006WJZZY LUG1103 QLUGHA006WJZZY LUG1104 QLUGHA006WJZZY...
Page 168 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) R1166 Resistor 0 1/16W Metal Oxide VRS-TV1JD000JY R1503 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102JY R1504 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102JY R1508 Resistor 100 1/16W Metal Oxide...
Page 169 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) R2036 Resistor 22k 1/32W Metal Composition VRK-SB1FF223JY R2038 Resistor 100k 1/16W Metal Oxide VRS-CZ1JF104JY R2039 Resistor 10k 1/16W Metal Oxide VRS-CZ1JF103JY R2040 Resistor 10k 1/16W Metal Oxide...
Page 170 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) R3303 Resistor 1k 1/16W Metal Oxide VRS-CZ1JF102JY R3304 Resistor 10k 1/16W Metal Oxide VRS-CZ1JF103JY R3305 Resistor 10k 1/16W Metal Oxide VRS-CZ1JF103JY R3306 Resistor 75 1/4W Metal Oxide...
Page 171 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) R3579 Resistor 68 1/32W Metal Composition VRK-SB1FF680JY R4401 Resistor 47 1/16W Metal Oxide VRS-CZ1JF470JY R4402 Resistor 47 1/16W Metal Oxide VRS-CZ1JF470JY R4403 Resistor 47 1/16W Metal Oxide...
Page 172 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) R8174 Resistor 4.7k 1/32W Metal Composition VRK-SB1FF472JY R8175 Resistor 47 1/16W Metal Oxide VRS-CZ1JF470JY R8301 Resistor 100 1/16W Metal Oxide VRS-CZ1JF101JY R8302 Resistor 100 1/16W Metal Oxide...
Page 173 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) R9328 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9329 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9330 Resistor 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9331 Resistor 47 1/32W Metal Composition...
Page 174 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [3] DUNTKE237FM02 (MAIN Unit) VA1511 Varistor EZAEG2A50AX RH-VXA187WJQZY VA1512 Varistor EZAEG2A50AX RH-VXA187WJQZY VA1513 Varistor EZAEG2A50AX RH-VXA187WJQZY VA1514 Varistor EZAEG2A50AX RH-VXA187WJQZY VA1515 Varistor EZAEG2A50AX RH-VXA187WJQZY VA1516 RH-VXA187WJQZY Varistor EZAEG2A50AX VA1517 Varistor EZAEG2A50AX...
Page 175 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) C553 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY C554 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY C555 Capacitor 10 16V Ceramic RC-KZA237WJZZY C556 Capacitor 10 16V Ceramic RC-KZA237WJZZY C557 Capacitor 10 16V Ceramic...
Page 176 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) C1330 Capacitor 1 25V Ceramic RC-KZA114WJZZY C1402 Capacitor 47 6.3V Electrolytic VCEASX0JN476MY C1404 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY C1405 Capacitor 0.1 25V Ceramic VCKYCY1EF104ZY C1406 Capacitor 0.1 25V Ceramic...
Page 177 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) C7522 Capacitor 10 16V Ceramic RC-KZA237WJZZY C7523 Capacitor 0.01 50V Ceramic VCKYCY1HB103KY C7524 Capacitor 0.01 50V Ceramic VCKYCY1HB103KY C7525 Capacitor 0.1 25V Ceramic VCKYCY1EF104ZY C7526 Capacitor 0.01 50V Ceramic...
Page 178 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) FB406 Balun BLN-0207TA RBLN-0207TAZZY FB501 Balun BLN-0077TA RBLN-0077TAZZY FB502 Balun BLN-0077TA RBLN-0077TAZZY FB503 Balun BLN-0077TA RBLN-0077TAZZY FB504 Balun BLN-0077TA RBLN-0077TAZZY FB505 RBLN-0077TAZZY Balun BLN-0077TA FB506 Balun BLN-0077TA...
Page 179 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) L7504 Coil Peaking 2.2µH VPSBN2R2JR54NY L7505 Coil Peaking 33µH VPCNN330J4R2NY L7506 Coil Peaking 2.2µH VPSBN2R2JR54NY L7509 Coil Peaking 2.2µH VPSBN2R2JR54NY L7510 Coil Peaking 2.2µH VPSBN2R2JR54NY L7511 VPSBN2R2JR54NY Coil Peaking 2.2µH...
Page 180 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) R537 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY R538 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY R539 Resistor 220 1/16W Metal Oxide VRS-TV1JD221JY R540 Resistor 220 1/16W Metal Oxide...
Page 181 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) R657 Resistor 33k 1/16W Metal Oxide VRS-CY1JF333JY R660 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY R661 Resistor 820 1/16W Metal Oxide VRS-CY1JF821JY R670 Resistor 100 1/16W Metal Oxide...
Page 182 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] DUNTKE238FM01 (TERMINAL Unit) R1480 Resistor 22k 1/16W Metal Oxide VRS-CY1JF223JY R1481 Resistor 47k 1/16W Metal Oxide VRS-CY1JF473JY R1482 Resistor 22k 1/16W Metal Oxide VRS-CY1JF223JY R1483 Resistor 47k 1/16W Metal Oxide...
Page 183 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] DUNTKE264FM01 (R/C, LED Unit) SLD101 Shield PSLDPA076WJFW [6] DUNTKE266FM01 (KEY Unit) D151 Zener Diode MTZJT-7215B RH-EX0646GEZZY D152 Zener Diode MTZJT-7215B RH-EX0646GEZZY D155 Zener Diode MTZJT-7215B RH-EX0646GEZZY P151 Plug 5Pin(KM)
Page 184 LC-32X20E/S/RU, LC-37X20E/S/RU [8] CABINET PARTS (LC-32X20E/S/RU) 1-10...
Page 185 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [8] CABINET PARTS (LC-32X20E/S/RU) Front Cabinet Ass'y CCABAB825WJ11 Front Cabinet Not Available Front Cover Not Available LED Cover HDECQA777WJ1A Shine Trim Not Available Speaker Net HPNLSA149WJ1A Mask Himelon, x2 (T-B)
Page 186 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [8] CABINET PARTS (LC-32X20E/S/RU) Model Label TLABNC117WJZZ Screw, x2 (Bottom Cover) XEBS940P16000...
Page 187 LC-32X20E/S/RU, LC-37X20E/S/RU [9] CABINET PARTS (LC-37X20E/S/RU)
Page 188 LC-32X20E/S/RU, LC-37X20E/S/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [9] CABINET PARTS (LC-37X20E/S/RU) Front Cabinet Ass'y CCABAB824WJ11 Front Cabinet Not Available Front Cover Ass'y Not Available LED Cover HDECQA777WJ1A Speaker Net HPNLSA148WJ1A Mask Himelon, x6 Not Available Front Cover tape, x6...
Page 189 LC-32X20E/S/RU, LC-37X20E/S/RU [10] SUPPLIIED ACCSESSORIES PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [10] SUPPLIIED ACCSESSORIES AC Cord (for UK and Eire) QACCBA073WJPZ QACCKA021WJPZ AC Cord (for Europe without UK and Eire) Remote Control Unit RRMCGA586WJSA Cable Clamp LHLDWA173WJKZ Guarrantee Card (for RU models only)
Page 190 LC-32X20E/S/RU, LC-37X20E/S/RU [11] PACKING PARTS...
Page 191 [11] PACKING PARTS Packing Case (LC-32X20E/S) SPAKCD529WJZZ Packing Case (LC-32X20RU) SPAKCD538WJZZ Packing Case (LC-37X20E/S) SPAKCD528WJZZ Packing Case (LC-37X20RU) SPAKCD537WJZZ Wrapping Paper Packing Case (LC-32X20E/S/RU) SPAKPA382WJZZ Wrapping Paper Packing Case (LC-37X20E/S/RU) SPAKPA338WJZZ Buffer Material (LC-32X20E/S/RU) SPAKXB541WJZZ Buffer Material (LC-37X20E/S/RU) SPAKXB540WJZZ Polyethylene Bag...
Page 192 LC-32X20E/S/RU, LC-37X20E/S/RU COPYRIGHT © 2007 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.

This manual is also suitable for:

Lc-37x20ru Lc-32x20ru Lc-32x20s Lc-37x20s Lc-37x20e Lc-42x20e ... Show all

Sharp LC-32X20E Service Manual

Safety Precaution

Chapter 1. Operation Manual Specifications

Chapter 2. Removing of Major Parts

Chapter 3. Adjustment Procedure

Chapter 4. Troubleshooting Table

Chapter 5. Major IC Informations

Chapter 6. Block Diagram/Wiring Diagram

CHAPTER 7 Printed Wiring Board

Chapter 8 . Schematic Diagram

Parts Guide

Quick Links

SERVICE MANUAL

Troubleshooting

Related Manuals for Sharp LC-32X20E

Summary of Contents for Sharp LC-32X20E

This manual is also suitable for:

Table of Contents