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Funai LCD A2004 User Manual

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    							15″/20″ COLOR LCD TELEVISION
    LCD-A1504
    LCD-A2004
    The LCD panel is manufactured to provide many years of useful life.
    Occasionally a few non active pixels may appear as a tiny spec of color.
    This is not to be considered a defect in the LCD screen.
     
    						
    							1-1 L4100SP
    SPECIFICATIONS
    ANT. Input ------------------- 80 dBµV, Video: PAL 87.5%, Audio: 30 kHz dev (1 kHz Sin)
    Test Input Signal ----------- 400Hz 30% modulation
    
    
    
    All items are measured across 8Ω load at speaker output terminal with L.P.F.
    Note:
    Nominal specifications represent the design specifications. All units should be able to approximate these. Some 
    will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute 
    worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications.Description Condition Unit Nominal Limit
    1. Intermediate Freq. Picture
    SoundMHz
    MHz45.75
    41.25-
    -
    2. Color Killer Sens. CH-3 dBµV 20 23
    3. AFT Pull In Range
    (10mV input)– MHz ±1.6 ±0.7
    Description Condition Unit Nominal Limit
    1. Number of Pixels Horizontal
    Ve r t i c a lpixels
    pixels640 x 3
    480-
    -
    2. Brightness
    cd/m
    2450 -
    3. Response Time - msec 16 -
    4. Support Color - - 16mil.(8bit) -
    5. Viewing Angle Horizontal
    Ve r t i c a l°
    °-85 to 85
    -85 to 70-
    Description Condition Unit Nominal Limit
    1. Over Scan Horizontal
    Ve r t i c a l%
    %8.5
    6.510±5
    10±5
    2. Color Temperature -
    x
    y°K 8500
    0.29
    0.30-
    0.29±0.03
    0.30±0.03
    3. Resolution Horizontal
    Ve r t i c a lline
    line400
    350
    						
    							4-3 L4100DC
    Wiring Diagram
    Fig. D3
    T402
    CN101A CN102A
    CN31A
    CN31B CN801CN802
    To Speaker To LCD Module 
    AssemblyTo LCD Module Assembly
    Function CBAMain CBA LCD Main CBA
    To Speaker CN103A CN101BCN320A CN321A
    CN102B CN103B
    T401
     
    						
    							4-6 L4200DC
    Cable Wiring Diagram
    Fig. D3
    T1402
    CN101A CN102A
    CN53 CN405
    CN1401CN51
    CN51A CN801CN802
    To SpeakerTo LCD Module Assembly
    Function CBA IR Sensor CBA Inverter CBAMain CBA LCD Main CBA
    To Speaker CN103A CN101BCN310A CN311ACN313A
    CN102B CN103B
    T1401
    T1404
    To LCD 
    Module
    Assembly To LCD 
    Module
    Assembly
    T1403
     
    						
    							5-1 L4100INT
    HOW TO INITIALIZE THE LCD TELEVISION
    To put the program back at the factory-default, 
    initialize the LCD television as the following procedure.
    How to initialize the LCD television:
    1. Turn the power on. (Use main power on the TV 
    unit.)
    2. To enter the service mode, press [STANDBY], [2], 
    [7], [1], and [MUTE] buttons on the remote control 
    unit in that order within 5 seconds.
    - To cancel the service mode, press [STANDBY] 
    button on the remote control.
    3. To initialize the LCD television, press “DISPLAY” 
    button on the remote control unit. 
    4. Confirm FF indication on the upper right of the 
    screen.
     
    						
    							6-1 L4100EA
    ELECTRICAL ADJUSTMENT INSTRUCTIONS
    General Note: 
    “CBA” is abbreviation for “Circuit Board Assem-
    bly.”
    NOTE:
    Electrical adjustments are required after replacing 
    circuit components and certain mechanical parts. It is 
    important to perform these adjustments only after all 
    repairs and replacements have been completed. 
    Also, do not attempt these adjustments unless the 
    proper equipment is available.
    Test Equipment Required
    1. DC Voltmeter
    2. Pattern Generator
    3. Color Analyzer
    How to Set up the Service mode:
    1. Turn the power on. (Use main power on the TV 
    unit.)
    2. Press [STANDBY], [2], [7], [1], and [MUTE] buttons 
    on the remote control unit in that order within 5 
    seconds.
    - To cancel the service mode, press [STANDBY] 
    button on the remote control.
    1. Initial Setting
    General
    Enter the Service mode. 
    Set the each initial data as shown on table 1 below. 
    Table 1: Initial Data 
    ITEMBUTTON(on the remote 
    control)
    DATA VALUE
    LCD-
    A1504LCD-
    A2004
     BRT(PAL)
    MENU → 1130 134
     CNT(PAL) 174 174
     CLR-R(PAL) 78 74
     CLR-B(PAL) 78 74
     SHR(PAL) 143 143
     S-BRT(PAL)
    MENU → 2130 134
     S-CNT(PAL) 174 174
     S-CLR-R(PAL) 78 74
     S-CLR-B(PAL) 78 74
     S-SHR(PAL) 143 143
     C-BRT(PAL)
    MENU → 3134 134
     C-CNT(PAL) 122 132
     C-CLR-R(PAL) 156 154
     C-CLR-B(PAL) 156 154
     C-SHR(PAL) 143 143
     BRT(SECAM)
    MENU → 4130 134
     CNT(SECAM) 174 174
     CLR-R(SECAM) 78 74
     CLR-B(SECAM) 78 74
     SHR(SECAM) 143 143
     S-BRT(SECAM)
    MENU → 5130 134
     S-CNT(SECAM) 174 174
     S-CLR-R(SECAM) 78 74
     S-CLR-B(SECAM) 78 74
     S-SHR(SECAM) 143 143
     C-BRT(SECAM)
    MENU → 6134 134
     C-CNT(SECAM) 122 132
     C-CLR-R(SECAM) 156 154
     C-CLR-B(SECAM) 156 154
     C-SHR(SECAM) 143 143
     BRT(NTSC)
    MENU → 7134 134
     CNT(NTSC) 172 174
     CLR-R(NTSC) 78 70
     CLR-B(NTSC) 78 70
     TNT(NTSC) 148 148
     SHR(NTSC) 143 143
     S-BRT(NTSC)
    MENU → 8134 134
     S-CNT(NTSC) 172 174
     S-CLR-R(NTSC) 78 70
     S-CLR-B(NTSC) 78 70
     S-TNT(NTSC) 148 148
     S-SHR(NTSC) 143 143
     
    						
    							6-2 L4100EA
    2. +B Adjustment
    Purpose: To obtain correct operation.
    Symptom of Misadjustment: The picture is dark and
    the unit does not operate correctly.
    Note: TP401(+B), TP300(GND), VR649 --- Main CBA
    1. Connect DC Volt Meter to TP401 and 
    TP300(GND).
    2. Adjust VR649 so that the voltage of TP401 
    becomes +13.0±0.3V DC [LCD-A1504] or 
    +21.0±0.3V DC [LCD-A2004].
    3. Flicker Adjustment
    Adjustment Point: R977 (LCD Main CBA)
    1. Enter the Service mode. 
    2. Press “2” button on the remote control unit.
    The following screen appears.
    3. If Flicker Adjustment is not fit, the screen become 
    the following.
     4. Adjust R977 so that flash stops.  C-BRT(NTSC)
    MENU → 9134 134
     C-CNT(NTSC) 122 132
     C-CLR-R(NTSC) 156 154
     C-CLR-B(NTSC) 156 154
     C-TNT(NTSC) 148 148
     C-SHR(NTSC) 143 143
    BRIGHT 0 0 0
    NORMAL 0 40 65
    DARK 0 95 98
     COR(C/D/S-1) VOL. p→ 1 131 131
     COG(C/D/S-1) VOL. p→ 2 131 131
     COB(C/D/S-1) VOL. p→ 3 131 131
     DR(C/D/S-1) VOL. p→ 4 145 145
     DG(C/D/S-1) VOL. p→ 5 143 143
     DB(C/D/S-1) VOL. p→ 6 140 140
     SBR(C/D/S-1) VOL. p→ 70 0
     SBB(C/D/S-1) VOL. p→ 90 0
     C-COR(C/D/S-2) VOL. p→ 1 131 131
     C-COG(C/D/S-2) VOL. p→ 2 131 131
     C-COB(C/D/S-2) VOL. p→ 3 131 131
     C-DR(C/D/S-2) VOL. p→ 4 145 145
     C-DG(C/D/S-2) VOL. p→ 5 143 143
     C-DB(C/D/S-2) VOL. p→ 6 140 140
     C-SBR(C/D/S-2) VOL. p→ 70 0
     C-SBB(C/D/S-2) VOL. p→ 90 0
    7F
    VOL. pFF FF
    LAST POWER OFF OFF
    SYSTEM
    PA L - B G PA L - B G
    NCM ON ON
    ASPECT OFF OFF
    RUSSIAN OFF OFF
    Test Point Adj. Point
    TP401 (+B)
    TP300 (GND)VR649
    M. EQ. Spec.
    DC Voltmeter+13.0±0.3V DC [LCD-A1504]
    +21.0±0.3V DC [LCD-A2004] ITEMBUTTON
    (on the remote 
    control)
    DATA VALUE
    LCD-
    A1504LCD-
    A2004
    R977 LCD Main CBA
    FLASH
    (Go and Off)
     
    						
    							6-3 L4100EA
    The following adjustment normally are not 
    attempted in the field. Only when replacing the 
    LCD Panel then adjust as a preparation.
    4. White Balance Adjustment
    Purpose: To mix red, green and blue beams correctly
    for pure white. 
    Symptom of Misadjustment: White becomes bluish
    or reddish.
    1. Operate the unit for more than 20 minutes.
    2. Input the White Purity (APL 80% or APL 40%).
    3. Set the color analyzer to the CHROMA mode and 
    bring the optical receptor to the center on the 
    LCD-Panel surface after zero point calibration as 
    shown above.
    Note: The optical receptor must be set 
    perpendicularly to the LCD Panel surface.
    4.[RF/AV2(CVBS)]
    Enter the Service mode. Press “VOL p” button on 
    the remote control unit and select “C/D/S-1” mode. 
    [AV1(RGB)]
    Enter the Service mode. Press “VOL p” button on 
    the remote control unit and select “C/D/S-2” mode. 
    5.[RF/AV2(CVBS)]
    When “x” value and “y” value are not within 
    specification, adjust “DB (C/D/S-1)” or “DR (C/D/S-
    1)”. Refer to “1. Initial Setting.”
    Note: “DB(C/D/S1)” or “DR(C/D/S1)” must be 
    adjusted within ±10.
    [AV1(RGB)]
    When “x” value and “y” value are not within 
    specification, adjust “C-DB(C/D/S-2)” or “C-DR(C/
    D/S-2)”. Refer to “1. Initial Setting.”
    Note: “C-DB(C/D/S-2)” or “C-DR(C/D/S-2)” must 
    be adjusted within ±10.
    6. Turn the power off and on again. (Main power 
    button on the TV unit.) Test Point Adj. Point Mode Input
    ScreenVOL. p
    buttons
    [RF/AV2(CVBS)]
        C/D/S-1
    [AV1(RGB)]
        C/D/S-2White Purity 
    (APL 80%)
    or
    (APL 40%)
    M. EQ. Spec.
    Pattern Generator, 
    Color analyzerx: 260 to 320,
    y: 270 to 330
    Figure
    Color Analyzer It carries out in a darkroom.
    L = 50 cmPerpendicularity
    INPUT: WHITE 80%
     
    						
    							7-1
    System Control Block Diagram
    L4100BLS
    BLOCK DIAGRAMS
    KEY-IN-1 44
    CN31B
    KEY-IN-2 33
    RCV30REMOTE
    SENSOR
    CN31A
    FUNCTION CBA
    KEY-IN-1 44
    CN51A
    KEY-IN-2 33
    IR SENSOR CBA
    CLN53RCV51
    D51
    RCV-IN 33
    REMOTE
    SENSOR
    IC151
    (MICRO CONPUTER)
    931052895922
    KEY-IN-1 44
    CN103B CN103A
    RCV-IN 11BACKLIGHT-SW33BACKLIGHT-ADJ22P-ON-H 66PROTECT-1 13 13PROTECT-2 14 14VOLUME 77A-MUTE(NU)88INPUT-0 99INPUT-1 10 10S-SW 15 15SCL 18 18SDA 19 19
    16 KEY-IN-1
    RCV-IN RESET
    P-ON-HPROTECT-1PROTECT-2VOLUME
    SDASCLINPUT-0INPUT-1S-SWSCLSDA
    88247746277845281311
    X151
    10MHz
    XIN
    XOUT
    TO POWER SUPPLY
    BLOCK DIAGRAM
    TO AUDIO
    BLOCK DIAGRAM
    BACKLIGHT-SW BACKLIGHT-ADJ
    P-ON-H PROTECT-1
    PROTECT-2
    VOLUME
    A-MUTEINPUT-0
    INPUT-1S-SW
    SCL
    SDA
    MAIN CBA LCD MAIN CBA UNIT
    92
    KEY-IN-2 55
    KEY-IN-2
    CN51
    CN53
    RESET IC1534AL+5V
    CN102B
    CN102A
    EEP-SDA 2EEP-SCL 1BUS-OPEN 4CN105 (NO CONNECTION)
    IC152
    (MEMORY)
    SCL
    6
    SDA57 WP
    26 BUS-OPEN(NU)
    AL+5V
    AL+5V
    CN105 IS 
    USED FOR 
    ADJUSTMENT
    AT FACTORYSCLK 3BUSY 2RXD 4CN104 (NO CONNECTION)EPM(NU) 6CE(NU) 5CNVSS 9RESET 8TXD 10DVP-SOUTDVP-CSDVP-SINMPSEL-0DVP-CLK
    DVP-RESET-PC
    QHFBIN
    BUS-OPEN 2DVP-RESET-PC
    8
    DVP-CLK-PC
    5CN301 (NO CONNECTION)
    DVP-SOUT-PC
    6
    DVP-SIN-PC
    7
    DVP-CS-PC
    4
    MPSEL-0 3
    Q1563.3V5V
    CONVERTER Q1553.3V5V
    CONVERTER Q1523.3V5V
    CONVERTER
    Q1543.3V5V
    CONVERTER Q1533.3V5V
    CONVERTER
    REG+3.3V
    25192DVP-SOUT
    2DVP-CS 2DVP-CLK42DVP-SIN379H-SYNK 2DVP-RESET3039314432
    9190
    7
    56
    29
    AFT-IN 11 11P-ON-H2 22 22
    AFT-IN P-ON-H2 PROTECT-3
    PROTECT-3 16 16BUS-OPEN(NU)20 20
    23
    SLOW-SW 19 19SP-MUTE 20 20FBIN 25 25
    1 SLOW-SW-IN
    SP-MUTE84
    INSEL-MUTE
    87
    RAPID-SW 18 18
    RAPID-SW-IN
    2083852558
    INSEL-MUTE17 17P-ON-L(NU) 24 24RGB-CONTROL(NU)26 26P-25V-ON 23 23NICAM-RESET22 22
    P-ON-L(NU) RGB-CONTROL(NU)P-25V-ON
    SC-VIDEO-MUTE
    NICAM-RESET
    S/C-JACK-MUTE16 16
    3334EEP-SCL
    EEP-SDA
    S/C-JACK-MUTE
    PROTECT-3P-ON-H2SP-MUTEINSEL-MUTENICAM-RESET
    FBIN
    RAPID-SWSLOW-SW
    S/C-JACK-MUTE
    TO IF/VIDEO
    BLOCK DIAGRAM AFT-IN
    BUSY-FLASH
    SCLK-FLASH
    RXD-FLASH
    CE-FLASH(NU)
    EPM-FLASH(NU)
    CNVSS
    TXD-FLASH
    IC301
    (LCD DRIVE / 
     SIGNAL PROCESS)
    585060575983897
    RCV-IN 77
    KEY SWITCHKEY SWITCHKEY SWITCHKEY SWITCHP-25V-ON
    5
    AL+5V
    INVERTER CBA
    CN1401
    BACKLIGHT-SW10 10BACKLIGHT-ADJ11 11
    CN405
    PROTECT-1 12 12P-ON-H 13 13
    TO LCD BACKLIGHT
    BLOCK DIAGRAM (B)
    BA
    FUNCTION CBA
    BACKLIGHT-ADJBACKLIGHT-SW
    PROTECT-1
    TO LCD BACKLIGHT 
    BLOCK DIAGRAM (A)
    BACKLIGHT-SW BACKLIGHT-ADJ
    PROTECT-1
    P-ON-H
    A
    Comparison Chart of 
    Models & Marks
    Model
    MarkLCD-A1504
    LCD-A2004A
    B
    D30
    STAND BYSTAND BY
     
    						
    							7-2
    IF/Video Block Diagram
    L4100BLIF
    JK75115117
    VIDEO-PbVIDEO-Y VIDEO-Pr
    TO 
    AUDIO
    BLOCK DIAGRAM
    CN103A INPUT-0(INV)
    INPUT-1(INV)
    TU1
    SIF
    SDASCL
    7109SIF
    MAIN CBA
    VIDEO SIGNAL
    AUDIO SIGNAL
    TO AUDIO  BLOCK
    DIAGRAM
    Q734
    JK722
    VIDEO1
    -IN
    JK721
    S-VIDEO
    -INTO SYSTEM 
    CONTROL 
    BLOCK
    DIAGRAM
    CY
    TO
    LCD BLOCK 
    DIAGRAM (A),(B)
    CN103B
    IC781
    (INPUT SELECT)
    Q754 Q702
    Q701
    SW
    CONTROL
    10
    9
    11
    INPUT-0
    INPUT-1
    TO 
    SYSTEM CONTROL
    BLOCK DIAGRAM
    Q872
    Q871
    Q753
    Q752
    Q751
    (TUNER UNIT)
    BUFFERBUFFERBUFFERBUFFERBUFFERBUFFER
    WF7WF2WF3WF6WF5WF4
    35
    4
    CVBS1 8S-VIDEO-C 5S-VIDEO-Y 6VIDEO-Pr 1VIDEO-Y 2VIDEO-Pb 3CVBS2 9
    81920
    VIDEO-IN VIDEO-OUTSLOW-SW
    1716
    16 RAPID-SWAFT VIDEO
    Q781BUFFER
    WF8
    SDASCLS-SW
    6 AUDIO
    AUDIO
    AFT-INS/C-JACK-MUTEFBIN
    Q11
    SLOW-SW
    Q731
    RAPID-SW
    Q730
    Q791
    Q744
    Q792AL+5V
    Q743
    BUFFER
     
    						
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