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JVC LT-22HG45E Service Manual

22" led tv.
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LT-22HG45E
SERVICE MANUAL
22" LED TV
ORIGINAL
MFR'S VERSION A
Design and specifications are subject to change without notice.

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   Summary of Contents for JVC LT-22HG45E

  • Page 1 LT-22HG45E SERVICE MANUAL 22" LED TV ORIGINAL MFR'S VERSION A Design and specifications are subject to change without notice.
  • Page 2 IMPORTANT SERVICE SAFETY INFORMATION Operating the receiver outside of its cabinet or with its Before returning the receiver to the user, perform the back removed involves a shock hazard. Work on following safety checks: these models should only be performed by those who 1.
  • Page 3 ABOUT LEAD FREE SOLDER (PbF) Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a PbF printing on the PCB. (Please refer to figures.) Caution: • Pb free solder has a higher melting point than standard solder; Typically the melting point is 86 F~104 F(30...
  • Page 4 HOTEL MODE FUNCTION To set the Hotel mode, please follow the steps below. 1. Press the MENU ---> 1147 button on the remote control. 2. Press the DOWN button on the remote control, Hotel mode <> 3. Select the "Setup" menu , then press ENTER button. Source Lock >>...
  • Page 5 GENERAL SPECIFICATIONS LCD Size / Visual Size 21.53 inch / 546.8mmV System LCD Type Color TFT LCD Number of Pixels 1920(H) x 1080(V) Double Scan View Range Left/Right 85/85 degree Up/Down 80/80 degree Bright Dot ≦ Zero Bright Dot Ratio 70% above Color System PAL / SECAM...
  • Page 6 GENERAL SPECIFICATIONS Remote Unit RC-TR Control Glow in Dark Remocon Remocon Format ORION Format Custom Code 71-8E h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power (Stand By) Information Audio Ⅰ Ⅱ Input Select Guide(EPG) Menu...
  • Page 7 GENERAL SPECIFICATIONS G-10 Features Power On Memory Auto Shut Off Just Clock Function Game Position Comb Filter Auto Set Up (Fast installation) Language Country TV Location Auto Power Off E-POP Demo Tuner Mode Auto Tuning (Analog/DVB-T, DVB-C) CH sort Auto clock (Digital tuner) Plug in start Picture Setting(TV) Picture Mode...
  • Page 8 GENERAL SPECIFICATIONS T'Text Text type Fastext / Toptext Text Language English, German, Swedish, Finnish, Hungarian, Italian, French, Portuguese, Spanish, Czech, Slovak, Polish, Estonian, Lettish, Lithuanian, Slovenian, Rumanian, Russian, Ukrainian, Turkish, Greek, Hebrew, Farisi Arabic, Danish, Flemish, Icelandic, Byelorussian Text and Picture Timeshift Timer Recording EPG Recording...
  • Page 9 GENERAL SPECIFICATIONS Digital Out Dolby Digital Dolby Digital Dolby Digital Plus Dolby Digital MPEG HE AAC Decode(Down Mix) Dolby Digital Dolby Digital Plus MPEG HE AAC PC Monitor Input VGA (640x480) Yes (60Hz) VGA (720x400) No (Possible to Display) WVGA (848x480) SVGA (800x600) Yes (60Hz) XGA (1024x768)
  • Page 10 GENERAL SPECIFICATIONS G-11 Accessories Owner's Manual Language English/Czech/Slovak/Hungarian/Polish w/Guarantee Card Remote Control Unit Rod Antenna Poles Terminal Loop Antenna (W/ Antenna Change Plug) Terminal DVB-T Antenna U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Quick Set-up Sheet...
  • Page 11 1650 Sets/45' Trailer w/Pallet w/Wrapping G-16 Material Cabinet Cabinet Front PC+ABS 94V0 NON-HALOGEN Cabinet Rear PS 94V0 NON-DECABROM Stand PC+ABS 94V0 NON-HALOGEN Non-Halogen Eyelet G-17 Environment Environmental standard requirement Green procurement of JVC Pb- Free Phase3(PHASE3A) Measures for Whisker WEEE...
  • Page 12 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: MAIN PCB (Refer to Fig. 1-3) AND P.C. BOARDS 1. Disconnect the following connectors: (CN2, CN3, CN5, CN6, CN11 and CN17). CAUTION 2. Remove the screw (1). 3. Remove the 2 screws (2). Be careful not to remove the LVDS cable forcibly, because 4.
  • Page 13 DISASSEMBLY INSTRUCTIONS 1-5: REMOCON PCB / LED PCB / OPERATION PCB (Refer to Fig. 1-5) 1. Remove the Remocon PCB in the direction of arrow (A). 2. Remove the screw (1). 3. Remove the Angle Hinge in the direction of arrow (B). 4.
  • Page 14 DISASSEMBLY INSTRUCTIONS 2. REMOVAL AND INSTALLATION OF 3. When IC starts moving back and forth easily after FLAT PACKAGE IC desoldering completely, pickup the corner of the IC using tweezers and remove the IC by moving with the IC REMOVAL desoldering machine.
  • Page 15 DISASSEMBLY INSTRUCTIONS INSTALLATION 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a 1. Take care of the polarity of new IC and then install the Thintip Soldering Iron. (Refer to Fig. 2-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
  • Page 16: Service Mode List

    SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. CAUTION Do not feel after other MENU. 1. Check of the SUM DATA and MICON VERSION on the screen. 1-1: Press the MENU ---> 1147 button on the remote control to select "Setup". 1-2: Press the DOWN button on the remote control to select "Version Info".
  • Page 17 ELECTRICAL ADJUSTMENTS 2. BASIC ADJUSTMENTS 1. ADJUSTMENT PROCEDURE Prepare the following measurement tools for electrical 2-1: WHITE BALANCE adjustments. Place the set in Aging Test for more than 15 minutes. 1. Pattern Generator Please select input About mode to adjust W/B. Receive the gray scale pattern from the Pattern Generator.
  • Page 18 ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) LCD PANEL CD2801 POWER PCB MAIN UNIT CN11 CD3004 CP7001 CN13 CN24 CN14 CN25 CN27 J502 CN23 CN26 CN6 CN5 CN17 CD805 SPEAKER CP2204 CD7602 OPERATION PCB OS7601 CP7601 LED PCB REMOCON PCB...
  • Page 19: Troubleshooting Guide

    TROUBLESHOOTING GUIDE (LCD SECTION) POWER DOES NOT TURN ON Is F501 broken? Change F501. Is there voltage C502 Check D507, D508, D518, D510 305VDC? and peripheral circuit. Is there voltage at pin6 Check IC501 and peripheral of IC501 21VDC? circuit. Is there voltage Q501 Change R510 and peripheral 169VDC?
  • Page 20 TROUBLESHOOTING GUIDE THE PICTURE APPEARS, BUT THE AUDIO DOES NOT APPEARS. Is SP WIRE CONNECTOR Connect SP WIRE connected? CONNECTOR. Is there signal at wave Change SPEAKER. (SP.Lift) and wave (SP.Right)? Is there signal at pins 1 Check IC YD1517(F) and and 9 of IC YD1517(F)? and 9 of IC YD1517(F)? peripheral circuit.
  • Page 21 TROUBLESHOOTING GUIDE THE PICTURE DOES NOT APPEAR Check IC7001 and peripheral Does backlight shine? circuit. Check D514 and L503 and Is there voltage at peripheral circuit. pin2 12VDC? Is there voltage at pin7 Check R7003 and peripheral of IC 7001 5VDC? circuit.
  • Page 22 TROUBLESHOOTING GUIDE THE COLOR DOES NOT APPEAR Is Setting of color Adjust the color. Normal? Is the color signal Receive the color signal. received? Check IC MT5310CHHU and Is there color signal at peripheral circuit. IC MT5310CHHU? Change IC MT5310CHHU.
  • Page 23 SEMICONDUCTOR BASE CONNECTIONS DIODE 1N4006-A5 HZS33NB2 RB056L-40TE25 S14K385E2S5M4 1SS133T-77 FCHS10A08 FCF10A20 HZS12NB2 SARS01 ZRM11C ANODE CATHODE ANODE BA36-PUR1DCB549T1/470 UDZSNP11B TE-17 MA111-(TX) ATTINY48-MU NR887D TRANSISTOR FA5640N-D1-TE1 KIA431A-AT PS2561AL1-1-V(W) KRC103SRTK FMV09N90E KTA1504S_Y_RTK...
  • Page 24: Block Diagram

    BLOCK DIAGRAM <Remonon PCB> <Operation PCB> <DVD PCB> <LCD P ANEL>         DVB-T/C TUNER MPEG/SCALER TDTK-G941D DEMOD. MT5310 (MEDIATEK) BUS SW SPDIF LVDS PCMCIA MT5135AE (MTK) SPDIF SPI FLASH 6 4Mbit   EN25Q64-104HIP H DMI-1 【 【 【 【 】...
  • Page 25 PRINTED CIRCUIT BOARDS POWER (INSERTED PARTS) SOLDER SIDE D505 IC505 CP501 R512 IC502 C516 W810 TH501 R501 W008 D510 C508 W802 D507 W009 B7001 W004 D518 HS501 W001 R505 L504 W003 L501_1 HS502 CEL788A D527 Q501 IC7001 D513 R511_1 W007 L7002 C514 F501...
  • Page 26 PRINTED CIRCUIT BOARDS POWER (INSERTED PARTS) SOLDER SIDE POWER (CHIP MOUNTED PARTS) SOLDER SIDE...
  • Page 27 PRINTED CIRCUIT BOARDS REMOCON (INSERTED PARTS) LED (INSERTED PARTS) SOLDER SIDE SOLDER SIDE CEJ570A CEJ572A CP7601 OS7601 CD7602 REMOCON (CHIP MOUNTED PARTS) LED (CHIP MOUNTED PARTS) SOLDER SIDE SOLDER SIDE W801 CEJ570A CEJ572A OPERATION (TOP SIDE) C2229 C2230 R2271 R2265_1 R2272 R2264 R2273_1...
  • Page 28 PRINTED CIRCUIT BOARDS REMOCON (INSERTED PARTS) LED (INSERTED PARTS) SOLDER SIDE SOLDER SIDE REMOCON (CHIP MOUNTED PARTS) LED (CHIP MOUNTED PARTS) SOLDER SIDE SOLDER SIDE OPERATION (TOP SIDE)
  • Page 29 POWER SCHEMATIC DIAGRAM (POWER PCB) SH507 SH502 SH503 YQ-12 YQ-12 YQ-12 FRAMEGND1 FRAMGND3 FROM/TO BACKLIGHT INVERTER LED+12V SOUND_GND W847 TH501 LIGHT_CTL B57153S0479A001 LINE FILTER L501_1 JLB24123 D508 D510 ZRM11C ZRM11C SH505 F501 YQ-12 D518 D507 SCT_2.5A250V ZRM11C ZRM11C USA:4A(T)250V/EU:2.5A(T)250V D514 J502_1 FCF10A20 CCT2302-0721C...
  • Page 30 BACKLIGHT INVERTER SCHEMATIC DIAGRAM (POWER PCB) PATTERN FROM/TO LED PCB C7016 CP7001 (CD2003) 470P 00_6232_007_006_800+ L7002 D7003 B7002 10V 960mA VLED HCB3216KF-391T20 RB056L-40 22uH PF13 VLED INVERTER DRIVE VLED IC7001 NR887D ILED1 C7005 R7004 ILED2 FROM/TO POWER 960mA 100 1/10W ILED2 12.7 ILED2...
  • Page 31 HEAD PHONE/REMOCON/LED SCHEMATIC DIAGRAM (REMOCON/LED PCB) (HEAD PHONE/REMOCON PCB) OS7601 KSM-603LM2M(OR) R7605 100 1/16W 1608 Vout W801 FROM/TO MAIN UNIT (CN6) CP7601 A2001WV-3A AT+3.3V REMOCON IN PCBDA0 CD7601_2 E8232206 CEJ570 (LED PCB) FROM/TO MAIN UNIT CD7602 (CN2) E8231204 W804 POWER ON LED W803 STAND_BY LED ST-BY/POWER...
  • Page 32 OPERATION SCHEMATIC DIAGRAM (OPERATION PCB) C2226 0.022 C2227 0.022 C2228 0.022 C2229 0.022 C2230 0.022 R2264 330 1/16W OUT4 R2265_1 10K 1/16W +-1% OUT3 3.28 3.28 3.36 3.36 0 3.28 0 3.28 PD3 PD4 PA2 3.28 3.36 C2231 0.022 R2278 1K 1/16W JG2205 KEY6/MENU 3.28...
  • Page 33 INTERCONNECTION DIAGRAM CD2003 CP7001 CP501 VLED VLED AT+5.8V VLED CN11 VLED AT+5.8V VLED VLED AT+5.8V ILED1 ILED2 ILED2 ILED2 SW+12V/GND SW+12V CN10 LED PCB SOUND+B PCBFM0 SOUND+B CEL789 SOUND_GND SOUND_GND CN17 POWER_ON_H POWER_FAIL LIGHT_CTL INVERTER_H CN12 230V AC 50Hz J3801 CD501 CN23 POWER PCB...
  • Page 34 WAVEFORMS SCALER VIDEO/AUDIO 20µs/div 2ms/div 500mV/div 200mV/div AV IN PC AUDIO L 10µs/div 2ms/div 200mV/div 200mV/div PC AUDIO R 10µs/div 1ms/div 100mV/div 500mV/div AUDIO OUT L 10µs/div 1ms/div 200mV/div 500mV/div AUDIO OUT R 1ms/div 1ms/div 200mV/div 2V/div AU AUDIO IN L SPEAKER L 1ms/div 1ms/div...
  • Page 35 MECHANICAL EXPLODED VIEW 103B 103B 103B 103A 103B 102B 102B 102A PCBDA0 (REMOCON PCB ASS'Y) MAIN001 (MAIN UNIT) 101C PCB240 (POWER PCB ASS'Y) 101B 101D PCBDT0 (LED PCB ASS'Y) 101D 101D PCB270 (OPERATION PCB ASS'Y) 101D 101D 101A 101D...
  • Page 36 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 6, 12, 13, 14, 15...
  • Page 37: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION QUANTITY X-7A708A911A FRONT CABI ASS'Y 101A X-708WPDA718 CABINET FRONT 101B X-711WPAA316 FRONT PLATE 101C X-713WPD0028 GUIDE REMOCON 101D X-800WQ00181 FELT SHEET 102A X-702WPAC014 CABINET BACK 102B X-800WQ0A312 FELT SHEET X-7A704A375A STAND ASS'Y 103A X-704WPA0161 STAND 103B...
  • Page 38 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION QUANTITY REMOCON PCB ASS'Y *** PCB *** PCBDA0 X-A3LJ03WDA0P REMOCON PCB ASS'Y CEJ570A *** RESISTORS *** R7605 X-R803R9101J 100 OHM 1/16W HPWGJ101T50 *** CAPACITORS *** C7602 X-CS0PB0PQ6K CC 4.7 UF 6.3V B GRM188B30J475KE18D *** OTHERS *** CP7601...
  • Page 39 ELECTRICAL REPLACEMENT PARTS LIST R519 X-R803R9103J 10K OHM 1/16W HPWGJ103T50 ! R520 X-R8X2R8334J 330K OHM 1/8W 1206W8J0334T5E R522 X-R801R7222J 2.2K OHM 1/10W HMWAJ0222T50 R523 X-R803R9222F 2.2K OHM 1/16W HPWGF222T50 R524 X-R803R9911F 910 OHM 1/16W HPWGF911T50 R525 X-R803R9222F 2.2K OHM 1/16W HPWGF222T50 ! R526 X-R8X2R8334J...
  • Page 40 ELECTRICAL REPLACEMENT PARTS LIST *** DIODES *** ! D504 X-D7KZ385E20 DIODE VARISTA S14K385E2S5M4 ! D505 X-D4CTN40060 DIODE SILICON 1N4006-A5 D506 X-D4JX001F50 DIODE SILICON ! D507 X-D4JXRM11C0 DIODE SILICON ZRM11C ! D508 X-D4JXRM11C0 DIODE SILICON ZRM11C ! D510 X-D4JXRM11C0 DIODE SILICON ZRM11C ! D511 X-D4JX001F50...
  • Page 41 ELECTRICAL REPLACEMENT PARTS LIST *** OTHERS *** EL2401 X-124116281A EYE LET EYE LET XRY16X28BD EL2402 X-124120301A EYE LET EYE LET XRY20X30BD SH502 X-126D000045 TERMINAL PIN YQ-12 SH503 X-126D000045 TERMINAL PIN YQ-12 SH505 X-126D000045 TERMINAL PIN YQ-12 SH507 X-126D000045 TERMINAL PIN YQ-12 OPERATION PCB ASS'Y *** PCB ***...
  • Page 42 ELECTRICAL REPLACEMENT PARTS LIST *** COILS *** B2201 X-024HC51023 CORE,BEADS FCM1608KF-102T02FCM1608KF-102T02 1 B2202 X-024HC51023 CORE,BEADS FCM1608KF-102T02 B2203 X-024HC51023 CORE,BEADS FCM1608KF-102T02 B2204 X-024HC51023 CORE,BEADS FCM1608KF-102T02 *** OTHERS *** CP2204 X-06GG240059 CONNECTOR PCB SIDE A2001WR-S04-T AND OTHERS *** CONNECTORS *** CD805 X-06CH242503 CORD CONNECTOR CH242503 CD805...
  • Page 43 SPEC.NO. M3LJ-03W O/R NO. F233167...

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