Page 1: Table Of Contents
INDEPENDENTLY ..........37 » TROUBLE SHOOTING TABLE ......40 Ë PACKING PARTS ........140 » CHASSIS LAYOUT ..........49 » PACKING OF THE SET ........141 » DESCRIPTION OF MAJOR IC FUNCTIONS ..51 » OPTIONAL SYSTEMS ........142 SHARP CORPORATION...
Page 2: Important Service Safety Precaution
LC-28HM2 AN-28SP2 IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be perfomed only by qualified service technicians who are thor- oughly familiar with all safety checks and the servicing guidelines which follow: » Use an AC voltmeter having with 5000 ohm per volt, WARNING or higher, sensitivity or measure the AC voltage drop 1.
Page 3: Specifications
LC-28HM2 AN-28SP2 Specifications Size (Diagonal) 28" WIDE XGA LCD Number of pixel 2,949,120 (1280 dots 3 RGB 768 lines) Low reflection Low reflection coating Brightness 400cd/m (at normally white) Viewable angle Left to right 160 Up to down Life of backlight 60,000 hours (at normal mode) VIDEO Multi system capability...
Page 4: Operation Manual
LC-28HM2 AN-28SP2 Operation Manual Display Top view – INPUT BRIGHTNESS MAIN POWER MAIN POWER switch INPUT button VOL (+)/(–) button BRIGHTNESS button Front view Side speakers (Option) Table stand Remote sensor window POWER/Standby indicator Rear view AC power input terminal Display input terminal System cable cover...
Page 5: Avc System
LC-28HM2 AN-28SP2 AVC System Front view 1 S-VIDEO input terminal (AV INPUT 2) AV INPUT 2 HEAD 2 VIDEO input terminal (AV INPUT 2) S-VIDEO VIDEO AUDIO PHONE AUDIO input terminal (AV INPUT 2) HEAD PHONE jack AV INPUT 2 HEAD S-VIDEO VIDEO...
Page 6: Remote Control
LC-28HM2 AN-28SP2 Remote Control 1 Infrared transmitter window 2 POWER button • To switch off the power, press this button. The POWER/Standby indicator lights up red. • To switch the power back on, press this button once more. The POWER/Standby indicator lights up green. 3 INPUT button Use this button to select an input source.
Page 7: Dimensions
LC-28HM2 AN-28SP2 Dimensions Display 690.8 mm 59.7 mm POWER 22.2 mm 112.8 mm 485 mm 277 mm...
Page 8 LC-28HM2 AN-28SP2 AVC System 360 mm AV INPUT 2 HEAD S-VIDEO VIDEO L-AUDIO-R PHONE AVC SYSTEM POWER 95 mm 270 mm...
Page 9: Removing Of Major Parts
LC-28HM2 AN-28SP2 REMOVING OF MAJOR PARTS Ë Display 1. Remove the terminal cover and the system cable cover. 2. Remove the table stand fixing screws (6 pcs.). 3. Remove the cabinet B fixing screws (16 pcs.) and detach the cabinet. Detach the connectors from the cabinet B operation PWB.
Page 10 LC-28HM2 AN-28SP2 8. Remove the reinforcement plate fixing screws (12 pcs.) and detach the reinforcement plate (center). 9. Remove the main PWB fixing screws (5 pcs.). 10. Remove the main power supply PWB fixing screws (4 pcs.) 11. Remove the amplifier PWB fixing screws (4 pcs.). 12.
Page 11 LC-28HM2 AN-28SP2 Æ LCD panel handling precautions 1. Perform the job in clean environment. (Min. RH 50%) 2. Make sure workers wear the anti-static armband. 3. Perform the job on conductive mattress. 4. Handle carefully not to drop or give impacts or vibrations. 17.
Page 12 LC-28HM2 AN-28SP2 Ë AVC System 1. Remove the top cabinet fixing screws (4 pcs.) from right and left sides and those (5 pcs.) from the rear side. 2. Remove the front terminal cover fixing screws (2 pcs.), and disconnect the cable connecting the front terminal PWB and the main PWB.
Page 13 LC-28HM2 AN-28SP2 Æ Description of PC I/F unit Simplified block diagram Video line input (1Vp-p) PC input (0.7Vp-p) Microprocessor Sync Video signal signal Sync signal selector 3ch AD converter Clamp/bias/gain adjustment EEPROM Video signal Encoded signal timing signal G/A group Encoder IC »...
Page 14 LC-28HM2 AN-28SP2 Æ Specific faults and countermeasures...
Page 15: Power Supply Start-Up Sequence
LC-28HM2 AN-28SP2 POWER SUPPLY START-UP SEQUENCE 1. System connections » AC power connection at Display unit. » AC power connection at AVC system unit » System cable connection tying the Display unit and the AVC system unit 2. Power supply start-up sequence 1 Turn on the main power switch positioned at the top of the Display unit.
Page 16: Adjustment Procedures
LC-28HM2 AN-28SP2 ADJUSTMENT PROCEDURES When indicating the adjustment line in the process adjustment mode, it is described in such a manner that the second line on page 1, for example, is “P1L2”. 1. Precautions and notes for adjustment » As power source, use the stable AC power. »...
Page 17 LC-28HM2 AN-28SP2 4 Process adjustment mode for display only [Procedure] Separate the display from the AVC center. While pressing [BRIGHTNESS] and [VOL–] buttons simultaneously, switch on the power. [Contents] Various monitor side adjustments can be made manually. (1) Lamp error reset (Done automatically with presetting) Set 0F 00 0 in the 1st line, and then set 1 into the least significant bit.
Page 18: List Of Adjustment Items
LC-28HM2 AN-28SP2 LIST OF ADJUSTMENT ITEMS Item Initial setting Description CENTER VERSION Center side microcomputer version MONITOR VERSION Monitor side microcomputer version MODEL SELECT Model selection for each destination CENTER ACUTIME Center side accumulated operation time MONITOR ACUTIME Monitor side accumulated operation time SIGNAL INFO Inspection mode switch LAMP NG CHECK...
Page 19 MONITOR CORRECT G Monitor correction G MONITOR CORRECT B Monitor correction B CEENT EEP RST S/C ONLY EEPROM reset in Sharp Corporation control area only MONITOR EEP RST Monitor side EEPROM reset UPDATE CENTER PROGRRAM Start updating the center side program...
Page 20 LC-28HM2 AN-28SP2 Item Initial setting Description COMP 15/50 COLOR Component 15k/50Hz color density setting COMP 15/50 TINT Component 15k/50Hz tint setting COMP 15/50 SHARNESS Component 15k/50Hz sharpness setting COMP 15/50 APACONPEAK Component 15k/50Hz apaconpeak setting COMP 15/50 YNR LEVEL NORMAL Component 15k/50Hz YNR level setting COMP 15/50 CDE Component 15k/50Hz CDE level setting...
Page 21 LC-28HM2 AN-28SP2 Item Initial setting Description C PAL-60 R DRIVE Composite PAL-60 red gain setting C PAL-60 B DRIVE Composite PAL-60 blue gain setting C PAL-60 COLOR Composite PAL-60 color density setting C PAL-60 TINT Composite PAL-60 tint setting C PAL-60 SHARPNESS Composite PAL-60 sharpness setting C PAL-60 APACONPEAK Composite PAL-60 apaconpeak setting...
Page 22 LC-28HM2 AN-28SP2 Item Initial setting Description S N443 BRIGHT S video NTSC 4.43 black level setting S N443 CONTRAST S video NTSC 4.43 contrast setting S N443 R DRIVE S video NTSC 4.43 red gain setting S N443 B DRIVE S video NTSC 4.43 blue gain setting S N443 COLOR S video NTSC 4.43 color density setting...
Page 23 LC-28HM2 AN-28SP2 Item Initial setting Description BRIGHT USER NORMAL Black level user initial setting (NORMAL) BRIGHT USER MOVIE Black level user initial setting (MOVIE) BRIGHT USER GAME Black level user initial setting (GAME) CONTRAST USER NORMAL Contrast user initial setting (NORMAL) CONTRAST USER MOVIE Contrast user initial setting (MOVIE) CONTRAST USER GAME...
Page 24 LC-28HM2 AN-28SP2 Item Initial setting Description V183H Gradation power reference voltage V183L Gradation power reference voltage V234H Gradation power reference voltage V234L Gradation power reference voltage V247H Gradation power reference voltage V247L Gradation power reference voltage V255H Gradation power reference voltage V255L Gradation power reference voltage V256H...
Page 25: Operations In Process Adjustment
LC-28HM2 AN-28SP2 OPERATIONS IN PROCESS ADJUSTMENT <Basic functions for adjustment> Cursor button up/down : Page backward/forward Channel selection up/down : 1 line backward/forward Menu: 1 line forward Cursor button left/right : Adjustment value –16/+16 Volume up/down : Adjustment value +1/–1 <Video source switching function>...
Page 26 The following items are put into actual execution by switching the relevant line display from “OFF” to “ON” and then pressing the ENTER button. P6L5 CENT EEP RST S/C ONLY Initializing the center side EEPROM Sharp Corporation control area (excluding accumulation time and +B ADJ) P6L6 MONITOR EEP RST...
Page 27: Adjusting Procedure
LC-28HM2 AN-28SP2 ADJUSTING PROCEDURE (1) AVC system chassis pre-adjustment Adjusting point Adjusting conditions Adjusting procedure AVC system +B 1. Connect DC voltmeter to 1. Adjust DC/DC 5V line output voltage to 5.0 ±0.05V. adjustment L806 on the side as shown (P2L1: in the figure.
Page 28 LC-28HM2 AN-28SP2 Adjusting point Adjusting conditions Adjusting procedure NTSC CONTRAST 1. Feed the color bar signal 1. Adjust (P2L6) C N358 CONTRAST, so that the 100% adjustment carrying NTSC composite white portion has the largest green area. 100% white and 0% white (pedestal black).
Page 29 LC-28HM2 AN-28SP2 (3) PAL signal adjustment (Adjustment item appearing on the 1st line of page 1 is described as P1L1.) Adjusting point Adjusting conditions Adjusting procedure Color system setting 1. Feed the PAL video signal. 1. If “PAL” is not found in the last part of the 1st line, press [ 5 ] key of the remote controller to switch to “PAL”.
Page 30 LC-28HM2 AN-28SP2 Adjusting point Adjusting conditions Adjusting procedure PAL B DRIVE 1. Feed the color bar signal 1. Adjust (P3L4) C PAL B DRIVE, so that the 100% adjustment carrying PAL composite white portion has the largest blue area. 100% white and 0% white (pedestal black).
Page 31 LC-28HM2 AN-28SP2 Adjusting point Adjusting conditions Adjusting procedure SECAM BRIGHT 1. Feed the color bar signal 1. Adjust (P4L2) C SECAM BRIGHT, so that the adjustment carrying SECAM composite pedestal black portion has the largest green area. If 100% white and 0% white there is no change against lowering the value, it is If N358 adjustment item (pedestal black).
Page 32 LC-28HM2 AN-28SP2 Adjusting point Adjusting conditions Adjusting procedure SECAM B DRIVE 1. Feed the color bar signal 1. Adjust (P4L5) C SECAM B DRIVE, so that the 100% adjustment carrying SECAM composite white portion has the largest blue area. (C SECAM B DRIVE) 100% white and 0% white (pedestal black).
Page 33 LC-28HM2 AN-28SP2 Adjusting point Adjusting conditions Adjusting procedure COMPONENT 1. Feed the color bar signal 1. Adjust (P5L2) COMP 15/60 CONTRAST, so that the CONTRAST carrying COMPONENT 100% white portion has the largest green area. adjustment 15kHz/60Hz 100% white and 0% white (pedestal black).
Page 34 LC-28HM2 AN-28SP2 (6) Data copy Adjusting point Adjusting conditions Adjusting procedure Data copy 1. Operate the adjustment key in the line (P5L13) DATA COPY. It works all right if “ON” appears first and then “OFF” appears. (7) Monitor side adjustment Adjusting point Adjusting conditions Adjusting procedure...
Page 35 Other than PC mode PICTURE-NORMAL-BRIGHT. Other than PC mode PICTURE-MOVIE-BRIGHT. –5 Other than PC mode PICTURE-GAME-BRIGHT. Other than PC mode PICTURE-NORMAL-SHARP. Other than PC mode PICTURE-MOVIE-SHARP. Other than PC mode PICTURE-GAME-SHARP. –20 Other than PC mode SOUND-NORMAL-TREBLE Other than PC mode...
Page 36 LC-28HM2 AN-28SP2 Description Setting Remarks VIEW-DOT BY DOT-H-POS In PC mode VIEW-SIDEBAR-POSITION-H Other than PC mode VIEW-FULL-POSITION-H Other than PC mode VIEW-CINEMA-H-POS Other than PC mode VIEW-SIDEBAR-V-POS In PC mode VIEW-CINEMA-V-POS In PC mode VIEW-FULL-V-POS In PC mode VIEW-DOT BY DOT-V-POS In PC mode VIEW-SIDEBAR-POSITION-V Other than PC mode...
Page 37: How To Adjust Display Unit Independently
LC-28HM2 AN-28SP2 HOW TO ADJUST DISPLAY UNIT INDEPENDENTLY The unit is factory adjusted to the optimum setting. When the setting has been deviated or the parts have been replaced, re-adjust the setting following the procedures described below. 1. Preparation As power source, use the stable AC power. 2.
Page 38 LC-28HM2 AN-28SP2 4. Test pattern display The gradation test pattern held by inside LCD controller can be displayed. It is useful to check the display function of the display unit. Set “1” in the 2nd line of the OSD for display. Set this to 1 to display the test pattern.
Page 39 LC-28HM2 AN-28SP2 (2) Controller 1st address 2nd address item Initial setting Remarks Initial setting Horizontal position Vertical position Delay adjustment Test pattern display Test pattern selection PWM control PWM frequency Lower PWM frequency Upper PWM duty Lower PWM duty Upper 6.
Page 40: Trouble Shooting Table
LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE...
Page 41 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 42 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 43 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 44 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 45 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 46 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 47 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 48 LC-28HM2 AN-28SP2 TROUBLE SHOOTING TABLE (Continued)
Page 49: Chassis Layout
LC-28HM2 AN-28SP2 CHASSIS LAYOUT (DISPLAY)
Page 50 LC-28HM2 AN-28SP2 CHASSIS LAYOUT (AVC SYSTEM)
Page 51: Description Of Major Ic Functions
LC-28HM2 AN-28SP2 DESCRIPTION OF MAJOR IC FUNCTIONS Ë Display » IC4001 (IX3333CE) Video signal decoder IC. The decoded video signals are 8-bit digital RGB signals and supplied to the panel control G/A together with the demodulated sync signals. » IC4302 (IX3424CE) Panel control G/A.
Page 52 LC-28HM2 AN-28SP2 » IC1901 (TA1300AN) Sync separator IC. When horizontal frequency is 15kHz (480i), IC801 can operate with its internal signal. When the frequency is either 31kHz (480p) or 33kHz (1080i), the external clamp pulse needs to be supplied to IC IC801. This IC produces such clamp pulse.
Page 53 LC-28HM2 AN-28SP2 Æ Major functions and pin allocations 1 Decoder IC (IC4001) Pin No. Name Function DDCK Video reference dot clock (Approx. 40MHz) Video display data field Vsync Vertical sync signal (60Hz) Hsync Horizontal sync signal (48.36kHz) 2 Panel control G/A (IC4302) Pin No.
Page 54: Block Diagram
LC-28HM2 AN-28SP2 BLOCK DIAGRAM (DISPLAY)
Page 55 LC-28HM2 AN-28SP2 BLOCK DIAGRAM (AVC SYSTEM)
Page 56: Printed Wiring Board Block Diagram
LC-28HM2 AN-28SP2 PRINTED WIRING BOARD BLOCK DIAGRAM (DISPLAY) Æ PWB Block Diagram (Display) H. V. INVERTER MAIN UNIT CONDENSER UNIT HIGH VOLTAGE BLOCK DC/DC UNIT BOSE INVERTER POWER H. V. POWER UNIT UNIT CONDENSER SUPPLY 110-120V/220-240V SYSTEM SPEAKER Æ Main Unit Control key INPUT Buffer f or source Buffer f or source...
Page 57: Main Unit
LC-28HM2 AN-28SP2 PRINTED WIRING BOARD BLOCK DIAGRAM (AVC SYSTEM) Æ PC I/F unit SCALOR IC CONVERTOR AVC SYSTEM PICTURE PROCESSING IC SETS CONTROL PICTURE SIGNAL ENCODER Æ Main Unit AV INPUT 2 CRYSTAL FOR 3D Y/C SYNC. DC POWER SUPPLY FIELD MEMORY SEPARATOR FOR 3D Y/C SEP.
Page 58: Multi Color System Block Diagram
LC-28HM2 AN-28SP2 MULTI COLOR SYSTEM BLOCK DIAGRAM...
Page 59: Overall Wiring Diagram
LC-28HM2 AN-28SP2 OVERALL WIRING DIAGRAM-1/2 (DISPLAY)
Page 60 LC-28HM2 AN-28SP2 OVERALL WIRING DIAGRAM-2/2 (DISPLAY)
Page 61 LC-28HM2 AN-28SP2 OVERALL WIRING DIAGRAM (AVC SYSTEM)
Page 62: Description Of Schematic Diagram
LC-28HM2 AN-28SP2 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 k /V tester. WAVEFORM MEASUREMENT CONDITION: 1.
Page 63: Waveforms
LC-28HM2 AN-28SP2 WAVEFORMS TP7002 TP7003 TP7004 TP7005 V: 500mV/div H: 20µsec/div V: 500mV/div H: 20µsec/div V: 500mV/div H: 20µsec/div V: 500mV/div H: 20µsec/div TP801 TP802 TP806 TP807 V: 500mV/div H: 20µsec/div V: 500mV/div H: 20µsec/div V: 500mV/div H: 20µsec/div V: 500mV/div H: 20µsec/div TP819 TP820 TP821...
Page 64 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-1/6 (DISPLAY)
Page 65 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-2/6 (DISPLAY)
Page 66 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-3/6 (DISPLAY)
Page 67 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-4/6 (DISPLAY)
Page 68 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-5/6 (DISPLAY)
Page 69 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-6/6 (DISPLAY)
Page 70 LC-28HM2 AN-28SP2 Ë CONTROL UNIT (DISPLAY)
Page 71 LC-28HM2 AN-28SP2 Ë R/C RECEIVER UNIT (DISPLAY)
Page 72 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë POWER UNIT (DISPLAY) L9 C1224 2SK2662 TR-5(250V/1A) 82 .6 82 .6 82 .6 82 .6 8 2 . 4 8 2 . 4 8 2 . 4 8 2 . 4 (2SK3233) (2SK2358) 0.015uF/1250VH FPH T4 Z1211 40 0 40 0...
Page 73 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë AMP UNIT (DISPLAY) D1 0 F MB 26L P 12 0 5 R C I LC 11 9 6 SN EZ (S F1 0S C6 ) D 2 R L4 A 2 2 4 . 3 2 2 4 .
Page 74 LC-28HM2 AN-28SP2 Ë LAMP-1 UNIT (DISPLAY)
Page 75 LC-28HM2 AN-28SP2 Ë LAMP-2 UNIT (DISPLAY)
Page 76 LC-28HM2 AN-28SP2 Ë LAMP-GND UNIT (DISPLAY)
Page 77 LC-28HM2 AN-28SP2 Ë FRONT TERMINAL UNIT (AVC SYSTEM) DUNTKA354NJ01...
Page 78 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-1/6 (AVC SYSTEM)
Page 79 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-2/6 (AVC SYSTEM)
Page 80 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-3/6 (AVC SYSTEM)
Page 81 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-4/6 (AVC SYSTEM)
Page 82 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-5/6 (AVC SYSTEM)
Page 83 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë MAIN UNIT-6/6 (AVC SYSTEM)
Page 84 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë REAR TERMINAL UNIT (AVC SYSTEM)
Page 85 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Ë POWER UNIT (AVC SYSTEM) 1000pF/ 250V RS(KH) 1SS270A HZS33-1 RL4A 68uF/45 0V GQ P1208 1 7 . 2 1 7 . 2 1 7 . 2 1 7 . 2 1 7 . 2 1 7 . 2 1 7 .
Page 86: Printed Wiring Board Assemblies
LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 PRINTED WIRING BOARD ASSEMBLIES Main Unit (Display) (A-Side)
Page 87 LC-28HM2 LC-28HM2 AN-28SP2 AN-28SP2 Main Unit (Display) (B-Side)
Page 88 LC-28HM2 AN-28SP2 Lamp-1 Unit (Display) (A-Side) Lamp-2 Unit (Display) (A-Side) Lamp-GND Unit (Display) (A-Side)
Page 89 LC-28HM2 AN-28SP2 Lamp-1 Unit (Display) (B-Side) Lamp-2 Unit (Display) (B-Side) Lamp-GND Unit (Display) (B-Side)
Page 90 LC-28HM2 AN-28SP2 Power Unit (Display) (Component Side)
Page 91 LC-28HM2 AN-28SP2 Amp Unit (Display) (Component Side) Front Terminal Unit (AVC System) (A-Side) Front Terminal Unit (AVC System) (B-Side)
Page 92 LC-28HM2 AN-28SP2 Main Unit (AVC System) (A-Side)
Page 93 LC-28HM2 AN-28SP2 Main Unit (AVC System) (B-Side)
Page 94 LC-28HM2 AN-28SP2 Rear Terminal Unit (AVC System) Rear Terminal Unit (AVC System) (A-Side) (B-Side)
Page 95 LC-28HM2 AN-28SP2 Power Unit (AVC System) (Componen Side) Power Unit (AVC System) (Componen Side)
Page 96 LC-28HM2 AN-28SP2 Control Unit (Display) (A-Side) Control Unit (Display) (B-Side) R/C Receiver Unit (Display) (A-Side) R/C Receiver Unit (Display) (B-Side)
Page 97: Schematic Diagram
3. NO. DE PIECE 4. DESCRIPTION in USA : Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call Toll- in CANADA : Contactez SHARP Electronics of Canada Limited Free: 1-800-BE SHARP Phone (416) 890-2100...
Page 98 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA168DE03 PACKAGED CIRCUITS MAIN UNIT (DISPLAY) (Continued) X2001 RCRSB0138GEN1 J Crystal X4318 RCRSZ0073CEZZ J Crystal IC4307 VHiTAC541FT-1 J TC74AC541FT FILTER AND COILS IC4308 VHiTAC541FT-1 J TC74AC541FT IC4309 VHiTAC541FT-1 J TC74AC541FT CF2001 RFiLC0163TAZZ...
Page 99 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA168DE03 C2009 VCCCCY1HH220J J 22p Ceramic C2010 VCCCCY1HH220J J 22p Ceramic MAIN UNIT (DISPLAY) (Continued) C2011 VCKYCY1EF104Z J 0.1 Ceramic C2012 VCKYCY1EF104Z J 0.1 Ceramic C1159 VCKYCY1EF104Z J 0.1 Ceramic C2014 VCKYCY1EF104Z...
Page 100 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA168DE03 R1105 VRS-CY1JF104J J 100k 1/16W Metal Oxide R1106 VRS-CY1JF000J 1/16W Metal Oxide MAIN UNIT (DISPLAY) (Continued) R1107 VRS-CY1JF000J 1/16W Metal Oxide R1108 VRS-CY1JF000J 1/16W Metal Oxide C4340 VCKYCY1CF104Z J 0.1 Ceramic...
Page 101 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA168DE03 R2024 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R2025 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide MAIN UNIT (DISPLAY) (Continued) R2026 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R2027 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R1189 VRS-CY1JF682F...
Page 102 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code MISCELLANEOUS PARTS DUNTKA168DE03 FB1301 RBLN-0064CEZZ J Ferrite Bead MAIN UNIT (DISPLAY) FB1302 RBLN-0064CEZZ J Ferrite Bead (Continued) FB1303 RBLN-0064CEZZ J Ferrite Bead R4028 VRS-CB1JF330J J 33 1/16W Metal Oxide FB1304 RBLN-0064CEZZ J Ferrite Bead...
Page 103 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA169DE03 DUNTKA172DE03 LAMP-1 UNIT (DISPLAY) CONTROL UNIT (DISPLAY) CAPACITORS DIODES C6101 RC-KZ1035CEZZ J 10p Ceramic D3502 RH-EX0879CEZZ J Zener Diode C6102 RC-KZ1035CEZZ J 10p Ceramic D3503 RH-EX0879CEZZ J Zener Diode C6103 RC-KZ1035CEZZ J 10p...
Page 104 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code Q513 VSUMG4/////-1 J UMG4 DUNTKA352NJ01 Q514 VSUMG4/////-1 J UMG4 MAIN UNIT (AVC) Q515 VSDTC144EE/-1 J DTC144EE Q516 VSUMG4/////-1 J UMG4 INTEGRATED CIRCUITS Q701 VSFMMT619//-1 J FMMT619 Q702 VSFS5ASJ06/-1 J FS5ASJ06...
Page 105 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C353 VCEAPF1HN225M J 2.2 Electrolytic DUNTKA352NJ01 C354 VCFRED1HM822J J 8200p 50V Film MAIN UNIT (AVC) C355 VCFYEC1CM334J J 0.33 Film (Continued) C356 VCEAPF1CN106M J 10 Electrolytic FILTERS AND COILS C357 VCKYCY1EF104Z...
Page 106 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C788 RC-EZ0649CEZZ J 47 Electrolytic DUNTKA352NJ01 C790 VCKYCY1EF104Z J 0.1 Ceramic MAIN UNIT (AVC) C793 RC-KZ1025CEZZ J 1.0 Ceramic (Continued) C795 RC-EZ0417CEZZ J 150 Electrolytic C449 VCEAPW1CN107M J 100 Electrolytic C797...
Page 107 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C6095 VCE9PF1CW226M J 22 Elect.(N.P) DUNTKA352NJ01 C6096 VCKYCY1CF104Z J 0.1 Ceramic MAIN UNIT (AVC) C6097 VCKYCY1CF104Z J 0.1 Ceramic (Continued) C6098 VCKYCY1CF104Z J 0.1 Ceramic C1905 RC-EZ0538CEZZ J 330 Electrolytic C6099 VCKYCY1CF104Z...
Page 108 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R395 VRS-CY1JF000J 1/16W Metal Oxide DUNTKA352NJ01 R396 VRS-CY1JF000J 1/16W Metal Oxide MAIN UNIT (AVC) R398 VRS-CY1JF104J J 100k 1/16W Metal Oxide (Continued) R399 VRS-CY1JF104J J 100k 1/16W Metal Oxide C7242 VCCCCY1HH680J J 68p Ceramic...
Page 109 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R723 VRS-CY1JF682J J 6.8k 1/16W Metal Oxide DUNTKA352NJ01 R724 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide MAIN UNIT (AVC) R725 VRS-CR3AD2R7J J 2.7 Metal Oxide (Continued) R726 VRS-CR3AD2R7J J 2.7 Metal Oxide...
Page 110 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R6070 VRS-CY1JF101J J 100 1/16W Metal Oxide DUNTKA352NJ01 R6071 VRS-CY1JF101J J 100 1/16W Metal Oxide MAIN UNIT (AVC) R6072 VRS-CY1JF101J J 100 1/16W Metal Oxide (Continued) R6073 VRS-CY1JF101J J 100 1/16W Metal Oxide R1818 VRS-CY1JF103J...
Page 111 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA352NJ01 DUNTKA353NJ01 MAIN UNIT (AVC) REAR TERMINAL UNIT (AVC) (Continued) R7210 VRS-CY1JF392J J 3.9k 1/16W Metal Oxide DIODES R7225 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide D1409 RH-EX1271CEZZ J Zener Diode R7226 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide...
Page 112 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code FB1410 RBLN-0062TAZZ J Ferrite Bead DUNTKA353NJ01 FB1411 RBLN-0062TAZZ J Ferrite Bead REAR TERMINAL UNIT (AVC) FB1412 RBLN-0062TAZZ J Ferrite Bead (Continued) FB1413 RBLN-0062TAZZ J Ferrite Bead C1455 VCCCCY1HH101J J 100p Ceramic...
Page 113 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code J2401 QJAKJ0063CEZZ J Jack, Headphone DUNTKA354NJ01 J2402 QTANZ0634CEZZ J Jack, Video Input-2 FRONT TERMINAL UNIT (AVC) SC2402 QSOCN0487FJZZ J Socket, 20-pin TRANSISTORS Q2401 VS2SC3928AR-1 J 2SC3928AR Q2402 VS2SC3928AR-1 J 2SC3928AR Q2403 VS2SC3928AR-1...
Page 114 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code VHPPC123FY2-1 J Photo Coupler PC123FY å RDENC0321CEZZ VHPPC123FY2-1 J Photo Coupler PC123FY å POWER UNIT (DISPLAY) VHPPC123FY2-1 J Photo Coupler PC123FY å VHPPC123FY2-1 J Photo Coupler PC123FY å...
Page 115 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code VRD-HT2EY242J J 2.4k 1/4W Carbon RDENC0321CEZZ VRD-HT2EY154J J 150k 1/4W Carbon POWER UNIT (DISPLAY) VRD-HT2EY122J J 1.2k 1/4W Carbon (Continued) VRD-HT2EY111J J 110 1/4W Carbon VRD-HT2EY394J J 390k 1/4W Carbon RC-RPER1H333K J 0.033 50V...
Page 116 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code CAPACITORS RDENC0322CEZZ RC-M2E224RESC J 0.22 275V Film å POWER UNIT (AVC) RCECKDRS102K1 J 1000p 250V Ceramic å RCECKDRS102K1 J 1000p 250V Ceramic å INTEGRATED CIRCUITS å RCECKDRS102K1 J 1000p 250V Ceramic å...
Page 117 LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code RDENC0322CEZZ RDENC0323CEZZ POWER UNIT (AVC) AMP UNIT (DISPLAY) (Continued) INTEGRATED CIRCUITS VRD-HT2EY680J J 68 1/4W Carbon VRNHT2EK3601F J 3.6k 1/4W Carbon VHiAN8032//-1 J AN8032 VRNHT2EK1001F J 1k 1/4W Carbon VHiTA76431S15 J TA78431S...
Page 118 J Front Cabinet Ass’y VRD-HT2HY394J J 390K 1/2W Carbon Not Available – Front Cabinet — VRD-HT2EY514J J 510K 1/4W Carbon HBDGB3158CESA J Badge "SHARP" VRD-HT2EY514J J 510K 1/4W Carbon LHLDF1207CEKZ J Holder (R/C PWB) VRD-HT2EY153J J 15K 1/4W Carbon GCOVA1863CEZZ...
Page 119: Ë Cabinet And Mechanical Parts
LC-28HM2 AN-28SP2 CABINET AND MECHANICAL PARTS (Display) Control Unit Main Unit Lamp-GND Unit Power Unit Amp. Unit DC/DC Unit 8-17 Lamp-1 Unit 8-18 8-14 8-12 8-11 8-15 8-16 8-10 8-21 8-16 8-13 Lamp-2 Unit 8-18 8-18 8-22 8-17 8-20 8-19 8-18 8-18 R/C Receiver Unit...
Page 120 J Front Terminal Panel Ass’y AU RCORF0098CEZZ J Ferrite Core, x7 Not Available – Front Terminal Panel — QCNW-5724CEZZ J Connecting Cord HBDGB3154CESA J Badge, "SHARP" QCNW-5723CEZZ J Connecting Cord GCOVA1875CEZZ J Cover, LED PZETK0113CEZZ J Barrier, x1 CCOVA1924CE01 J Rear Terminal Cover Ass’y...
Page 121 LC-28HM2 AN-28SP2 CABINET AND MECHANICAL PARTS (AVC System) Rear Terminal Unit PC I/F Unit Main Unit 3-4-1 3-4-1 Power Unit Front Terminal Unit...
Page 122: Supplied Accessories
LC-28HM2 AN-28SP2 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PACKING PARTS SUPPLIED ACCESSORIES (NOT REPLACEMENT ITEM) SSAKA0160CEZZ J Polyethylene Bag, SPAKC5487CEZZ – Packing Case — for Operation Manual SPAKP0892CEZZ – Wrapping Paper, for Display — GCOVA1860CEKA J Terminal Cover SPAKP0869CEZZ...
Page 123: Packing Of The Set
LC-28HM2 AN-28SP2 PACKING OF THE SET Reinforcing Pad (Accessories) AC Cord Terminal Cover System Cable Accessories Operation Manual Infrared R/C Unit Batteries Cable Clamp (4 pcs) Wrapping Paper Polyethylene Bag (Display) Wrapping Paper (AVC) Reinforcing Pad (Display) AVC System Reinforcing Pad (AVC) Buffer Material No.
Page 124: Optional Systems
LC-28HM2 AN-28SP2 OPTIONAL SYSTEMS SPEAKER SYSTEM AN-28SP2 MODEL OUTLINE Speaker System for the LCD Monitor [Appropriate Model] This speaker system is for exclusive use with model LC-28HM2 ACCESSORIES Speaker system fixing screws ... 4 Speaker system ... 1 Set Rear cover ... 2 Instruction...
Page 125 LC-28HM2 AN-28SP2 Attachment...
Page 126 3. NO. DE PIECE 4. DESCRIPTION in USA : Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call Toll- in CANADA : Contactez SHARP Electronics of Canada Limited Free: 1-800-BE SHARP Phone (416) 890-2100...
Page 127 LC-28HM2 AN-28SP2 DIMENSIONS 71.13 (Unit: mm) PACKING OF THE SET Polyethylene Sack Instruction Manual Reinforcing Pad (Top) Polythylene Sack Polythylene Sack Screw (4pcs) Rear Cover Polythylene Sack Polythylene Sack Rear Cover Reinforcing Pad (Bottom) Packing Case...
Page 128 LC-28HM2 AN-28SP2 COPYRIGHT © 2000 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.

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