Noblex 24LC823H Service Manual
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Noblex 24LC823H Service Manual

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SERVICE MANUAL LCD Television
Contents
Safety Notice.............................................. 
Chassis Block Diagrams......................... 4-5
Adjustments................................. 16
Disassembly..................... 17-19
List..................................... 0
Chassis Electrical Parts List................ 1-9
Schematic Diagram............................. 35-37
N8WY
................................ 6-10
System........ 11-15
NOBLEX
FILE NO.
Model No. 4LC83H
Service Ref.No. 4LC83H-00
Product Code: 1-130-4-18
Original Version
Chassis Series: UE7-L
Give complete "SERVICE REF. NO." for
parts order or servicing.It is shown on the
rating lable at the cabinet back of the unit.
This T.V. receiver will not work properly
in foreign countries where the television
transmission system and power source
differ from the design specifi cations. Refer
to the specifi cation table.
REFERENCE NO.
(Argentina)

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Summary of Contents for Noblex 24LC823H

  • Page 1: Table Of Contents

    NOBLEX FILE NO. SERVICE MANUAL LCD Television Model No. 4LC83H (Argentina) Service Ref.No. 4LC83H-00 Product Code: 1-130-4-18 Contents Original Version Safety Notice.......... Specifi cations..........3 Chassis Series: UE7-L Chassis Block Diagrams......4-5 IC Block Diagrams ........ 6-10 On-screen Service Menu System..

  • Page 2: Safety Notice

    Safety Notice Safety Precautions The following precautions must be observed. 1:Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabinet or on the chassis. :When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly, such as, control knobs, adjustment covers or shields, barriers, etc..
  • Page 3 Specifications Power Source AC 110 - 40 Volts, 50/60 Hz Receiving System PAL-N, PAL-M, NTSC3.58 Channel Coverage ANTENNA mode VHF: CH0 - CH13 UHF: CH14 - CH69 CATV mode VHF band: CH01-CH13 MID band: CH14-CH SUPER band: CH3-CH36 HYPER band: CH37-CH64 ULTRA band: CH65-CH94 and CH100-CH15 Low MID band: CH95-CH99 Aerial Input Impedance...

  • Page 4: Chassis Block Diagrams

    Chassis Block Diagrams MAIN SIGNAL PROCESSING CIRCUIT...
  • Page 5 Chassis Block Diagrams POWER SUPPLY IC 1.5A 13V FOR AUDIO AMP 13V (1.5A) 100mA FOR MONITOR OUT 100mA DC/DC 33V FOR TUNER PWR-ON +13V 200mA (26inch 15V) 5V FOR TUNER 600mA 12VP FOR PANEL CMOS SW (1.5A) ON-PANEL 600mA 1.26VA 3.3V 300mA AVDDA &...
  • Page 6 IC Block Diagrams (On the ASSY, PWB, MAIN) IC700 MST740KU MST740KU C158 C158 CL=20pf of XTAL 27pF 27pF R166 R166 C159 C159 14.318MHZ 14.318MHZ R167 R167 200R 200R 27pF 27pF AVDDA VDDC VDDP HWRESET SCL_HD RLV0P RXO0- DDCD_SCL RLV0P/LVA0P RXO0- SDA_HD RP22X4 RP22X4...
  • Page 7 EN25F80 IC Block Diagrams EN25F80 Figure.1 CONNECTION DIAGRAMS Figure.1 CONNECTION DIAGRAMS IC8000 �XXAAJ�164-- �XXAAJ�164-- 8 - LEAD SOP / PDIP 8 - CONTACT VDFN 8 - LEAD SOP / PDIP 8 - CONTACT VDFN Figure 2. BLOCK DIAGRAM Figure 2. BLOCK DIAGRAM This Data Sheet may be revised by subsequent versions ©2004 Eon Silicon Solution, Inc., www.eonssi.com...

  • Page 8: Ic Block Diagrams

    IC Block Diagrams IC8001 �XXAVC951---P IC750 �PS331T�FP64M...
  • Page 9 IC Block Diagrams IC750 �LM1085R-3.3P IC7504 �LM1117S-ADJP...
  • Page 10 IC Block Diagrams IC001 �TPA1517DWPRP -10-...

  • Page 11: On-Screen Service Menu System

    On-screen Service Menu System General This set has an On-screen Service Menu System included in the CPU that allows remote operation for most of the service adjustments. On-screen Service Menu System �uick operation is needed to enter Service Mode. ■ How to enter the Service Menu 1.
  • Page 12 On-screen Service Menu System ■ Service Adjustment Data Table Item Name Initial Data Description 575i SUB-CONT MST740KU 575i SUB-BRIGHT MST740KU DVD Input 575i SUB-COLOR MST740KU Input Video Format: 575i 575i SUB-TINT MST740KU (Different Value) 575i SUB-SHARP MST740KU 575p SUB-CONT MST740KU 575p SUB-BRIGHT MST740KU DVD Input...
  • Page 13 On-screen Service Menu System Item Name Initial Data Description PC SUB-SHARP MST740KU DVI SUB-CONT MST740KU DVI SUB-BRIGHT MST740KU DVI SUB-COLOR MST740KU HDMI Input DVI SUB-TINT MST740KU (Different Value) DVI SUB-SHARP MST740KU AVPAL-N BASE-CONT MST740KU AVPAL-N BASE-BRIGHT MST740KU AVPAL-N BASE-COLOR MST740KU Input Alteration: VIDEO(PAL-N) AVPAL-N BASE-TINT MST740KU...
  • Page 14 On-screen Service Menu System Item Name Initial Data Description Black-575p G MST740KU Black-575p B MST740KU White-480i R MST740KU White-480i G MST740KU White-480i B MST740KU DVD Input: 480i Black-480i R MST740KU (Different Value) Black-480i G MST740KU Black-480i B MST740KU White-480p R MST740KU White-480p G MST740KU...
  • Page 15 On-screen Service Menu System Item Name Initial Data Description White-DVI R MST740KU White-DVI G MST740KU White-DVI B MST740KU HDMI Input Black-DVI R MST740KU (Different Value) Black-DVI G MST740KU Black-DVI B MST740KU White-AVPAL-M R MST740KU White-AVPAL-M G MST740KU White-AVPAL-M B MST740KU VIDEO Input→PAL-M Black-AVPAL-M R MST740KU...

  • Page 16: Service Adjustments

    Service Adjustments CAUTION ! Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for correct operation. ■ Setting the Initial data This adjustment is controlled by the CPU (IC8000) through the IIC Bus Data Line in the chassis, and those adjustment data are memorized the memory IC (IC700).

  • Page 17: Mechanical Disassembly

    Mechanical Disassembly [ Disassembly Diagram ] PANEL MAIN BOARD CABINET BACK CABINET FRONT BUTTON DEC. RC SPEAKER POWER BOARD STAND BASE -17-...
  • Page 18 Mechanical Disassembly 1. STAND Removal 1. Remove 4 screws and remove the STAND. STAND 2. CABINET BACK Removal 1. Remove 10 screws and take the CABINET BACK off. -18-...
  • Page 19 Mechanical Disassembly 3. ASSY, PWB, MAIN Board and DEC IND RC Board Removal 1. Remove 8 screws and take ASSY, PWB, MAIN off. 2. Remove 1 screw and take DEC IND RC Board off. ASSY, PWB, MAIN DEC IND RC PWB 4.

  • Page 20: Cabinet Parts List

    Cabinet Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. Note: The parts which are not described the part number in this parts list are not supplied for the service parts. Key No. Part No. Description Key No.

  • Page 21: Chassis Electrical Parts List

    Chassis Electrical Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. Key No. Part No. Description Key No. Part No. Description 406 021 4308 TR MMBTSA1235F ASSEMBLED BOARDS Q030 305 014 4512 TR 2SC2412K T146 R A1001 655 004 0640 ASSY,PWB,MAIN UNIT N8WW 305 014 4611 TR 2SC2412K T146 S A1900 655 004 0626 IR+LED UNIT N8WW 305 015 8727 TR 2SC2812-L6-TB A2000 655 004 0602 ASSY,PWB,POWER 24-N8WW...
  • Page 22 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description 305 173 9816 TR 2SC3928A1R 305 015 8727 TR 2SC2812-L6-TB 305 173 9915 TR 2SC3928A1S 305 015 8925 TR 2SC2812-L7-TB 406 021 4407 TR MMBTSC3928R 305 163 1615 TR 2SC2812N-L6-TB0 Q7203 305 014 4512 TR 2SC2412K T146 R 305 173 9816 TR 2SC3928A1R 305 014 4611 TR 2SC2412K T146 S 305 173 9915 TR 2SC3928A1S 305 015 8727 TR 2SC2812-L6-TB 406 021 4407 TR MMBTSC3928R 305 015 8925 TR 2SC2812-L7-TB Q8021 305 014 4512 TR 2SC2412K T146 R 305 163 1615 TR 2SC2812N-L6-TB0...
  • Page 23 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description C102 303 298 9612 CERAMIC 0.1U K 16V C409 303 403 0718 ELECT 220U M 16V 304 103 4508 CERAMIC 0.1U K 16V 303 373 6314 ELECT 220U M 16V 304 095 0502 CERAMIC 0.1U K 16V C410 303 298 9612 CERAMIC 0.1U K 16V C1020 303 402 8319 ELECT 10U M 50V...
  • Page 24 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description C7215 304 104 7904 CERAMIC 22P J 50V C7250 303 113 3818 CERAMIC 1000P K 50V 304 094 7601 CERAMIC 22P J 50V 304 103 2405 CERAMIC 1000P K 50V C7216 304 104 7904 CERAMIC 22P J 50V 304 090 1108 CERAMIC 1000P K 50V 304 094 7601 CERAMIC 22P J 50V C7251 303 113 3818 CERAMIC...
  • Page 25 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description C7310 303 113 4112 CERAMIC 2200P K 50V 304 095 0502 CERAMIC 0.1U K 16V 304 104 5702 CERAMIC 2200P K 50V C759 303 386 0910 ELECT 100U M 16V 304 091 3309 CERAMIC 2200P K 50V 303 312 8515 ELECT 100U M 16V C7330 303 402 8418 ELECT 2.2U M 50V C761 303 298 9612 CERAMIC...
  • Page 26 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description R057 301 256 0411 MT-GLAZE 12K JA 1/10W R118 301 276 4710 MT-GLAZE 0.000 ZA 1 /3W R058 301 162 2417 MT-GLAZE 1.2K JA 1/10W R121 301 150 6014 MT-GLAZE 0.000 ZA 1 /10W R059 301 162 2417 MT-GLAZE 1.2K JA 1/10W R1506 301 255 6513 MT-GLAZE 100 JA 1/10W R062...
  • Page 27 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description R7227 301 150 6014 MT-GLAZE 0.000 ZA 1 /10W R7324 301 256 5911 MT-GLAZE 2.7K JA 1/10W R7228 301 150 6014 MT-GLAZE 0.000 ZA 1 /10W R7325 301 256 6314 MT-GLAZE 47K JA 1/10W R7229 301 255 8715 MT-GLAZE 22 JA 1/10W R7326 301 162 3018 MT-GLAZE 22K JA 1/10W R7230 301 150 6212 MT-GLAZE...
  • Page 28 Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description L7330 652 003 2569 INDUCTOR ,220UH 408 062 7201 DIODE 1SS35 L7500 945 036 3895 INDUCTOR,220 OHM 408 066 0000 DIODE L1SS355T1G 952 001 6980 INDUCTOR , 220 OHM D405 307 163 0414 DIODE 1SS352-(TPH3) 652 003 2071 INDUCTOR ,220 OHM 307 149 0810 DIODE 1SS355-TE-17 L7501 945 036 3895 INDUCTOR,220 OHM 408 062 7201 DIODE 1SS35 952 001 6980 INDUCTOR , 220 OHM 408 066 0000 DIODE L1SS355T1G 652 003 2071 INDUCTOR ,220 OHM D703...
  • Page 29 303 368 7319 CERAMIC 10U K 6.3V 610 349 6351 CABINET BACK-N8WW C1922 303 113 3818 CERAMIC 1000P K 50V 610 348 9254 DEC IND RC-N8JE 303 224 5718 CERAMIC 1000P K 50V 610 349 6436 SPACER SHEET POWER-N8WJ 304 103 2405 CERAMIC 1000P K 50V 655 004 0503 BADGE NOBLEX-BE2A 304 090 1108 CERAMIC 1000P K 50V 655 003 5530 SPACER SHEET C-N8JE RESISTOR 655 003 7077 SPACER SHEET-N8WJ R1920 301 162 2912 MT-GLAZE 220 JA 1/10W 655 003 7060 SPACER SHEET BACK A-N8WJ R1921 301 162 2912 MT-GLAZE 220 JA 1/10W...
  • Page 30 Printed Wiring Board MAIN BOARD (Solder Side) SC06 C403 X10 K800 SC07 1LG4B0Y050A_B A30C5 ??? *** R00 K1501 K150 R001 C003 K100 SW1956 A101 K1001 K1003 SW1955 SW1954 SW1953 SW195 K1005 SW1951 K1004 -30-...
  • Page 31 Printed Wiring Board MAIN BOARD (Part Side) -31-...
  • Page 32 Printed Wiring Board POWER BOARD (Solder Side) -3-...
  • Page 33 Printed Wiring Board POWER BOARD (Part Side) -33-...
  • Page 34 Printed Wiring Board RC BOARD (Solder Side) K1900 1AA4B10S0630B ??? *** SC1903 R190 C191 R191 C19 C190 SC1904 D190 SC006 R19 C194 C195 U1901 RC BOARD (Solder Side) 1AA4B10S0630B K1900 ??? *** U1901 A30C5 D190 -34-...

  • Page 35: Schematic Diagram

    Schematic Diagram POWER BOARD -35-...
  • Page 36 Schematic Diagram INVERTER BOARD -36-...
  • Page 37 Schematic Diagram LED BOARD U1901_GND SC1904 C1922 KK1000GQ SC1903 C1924 C1925 R1921 1/10GJ220C C1921 6.3KK10MB R1920 R1922 1/10GJ220C 1/10GJ100C C1920 6.3KK10MB SCREW SC006 GND2 GND2 8 9 10 11 12 13 14 NOBLEX Jun. 010 -37-...
  • Page 38 N: Metalized carbon SERVICE mark. 7. Parts specified with "X" are not installed in this model. Kind (M.carbon) S: Oxied metalized 24LC823H-00 8. Parts specified with "J" are just jumper wires. REF. NO. Rated wattage (1/2W) W: Wire wounding C: Solid...

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