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Funai LCD A2004 User Manual

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    							7-3
    Audio Block Diagram
    L4100BLA
    MAIN CBA
    AUDIO SIGNAL
    VOLUMETO SYSTEM 
    CONTROL 
    BLOCK
    INPUT-0(INV)
    INPUT-1(INV) SCL SDA
    IC871(INPUT SELECT)
    SW CTL
    3
    11151241
    910
    dBX/MNR
    PANDA1
    FM/AM
    PRESCALE
    I2C  READ
    REGISTER
    AUTOMATIC
    SOUND
    SELECT
    NICAM
    PRESCALE
    L-CH R-CH
    VOLUME
    AGC
    DEMODULATOR
    A/D
    CONVERTERI2C
    DECORDER
    TO IF/VIDEO 
    BLOCK
    DIAGRAM 
    TUNER
    AUDIO1
    AUDIO2
    TUNER
    AUDIO1
    AUDIO2(L-CH)
    (R-CH)
    21213IC831(SOUND PROCESSOR)
    AUDIO1(L)
    -IN JK723
    SIF
    JK724AUDIO1(R)
    -IN
    14
    IC801(AUDIO AMP)
    7
    VOLUME
    11
     AMP
     AMP MUTE
    /STANDBY
    CONTROL
    61
    (R-CH) (L-CH)
    2
    5RF
    JK801
    HEADPHONE
    JACK
    CN801SP-R 1GND 2
    SP802
    SPEAKER
    L-CH
    CN802SP-L 1GND 2
    TO IF/VIDEO 
    BLOCK
    DIAGRAM
    13
    2
    WF1
    CLN802
    CLN801
    SP801
    SPEAKER
    R-CH
    TO SYSTEM 
    CONTROL 
    BLOCK
    DIAGRAM
    NICAM-RESET
    4322
    AUDIORESET
    6INH
    JK75113
    AUDIO2(L)
    -OUT AUDIO2(R)
    -OUT
    6
    AUDIO2(L)
    -IN
    2
    AUDIO2(R)
    -IN
    Q732
    Q733
    Q741
    Q742
    AL+5V
    INSEL-MUTES/C-JACK-MUTESP-MUTE
    DEEMPHASIS
    SOUND
    SELECT
    A/D
    CONVERTER
    SCART DSP
    INPUT SELECT
    SCART
    PRESCALE
    D/A
    CONVERTER
    VOLUME
    SCART1 OUTPUT SELECT
    SCART1
    CHANNEL
    MATRIX
    QUASI-PEAK
    CHANNEL MATRIX
    I2C  READ
    REGISTER
    3031
    QUASI-PEAK
    DETECTORLOUD SPEAKER
    CHANNEL MATRIXAV C
    D/A
    CONVERTER
    STANDERD
    AND SOUND
    DETECTION
     
    						
    							7-4
    L4100BLLCD
    LCD Block Diagram ( A )
    LCD MAIN CBA UNIT
    VIDEO SIGNAL
    IC301(LCD DRIVE / SIGNAL PROCESS)
    TO
    IF/VIDEO
    BLOCK
    DIAGRAM
    CN103A
    CN103B
    182181180179175174173
    ODDINV
    EVENINV STH1 POL
    STV1
    CLKVCLKH1 LCD MODULE
    VREF(4) 25VREF(0) 29VREF(1) 28VREF(2) 27VREF(3) 26VREF(7) 21VREF(5) 23VREF(6) 22VREF(8) 20VREF(9) 19
    104105103
    VCOM 35VCOM
    36
    PANEL+10.8V
    R977
    VCOM
    CN320A
    169168167166165161160159158155154153152151150146145
    LCD MODULE
    TP322TP323TP318TP319TP320TP321
    143142141140139135134133132131130129128127123122121120119116115114113106
    TP316TP317TP312TP313TP314TP315
    CN321A
    OR(3)
    32OR(4)
    31OR(5)
    30OR(0)
    35OR(1)
    34OR(2)
    33OG(3)
    25OG(4)
    24OG(5)
    23OR(0)
    28OG(1)
    27OG(2)
    26OB(3)
    18OB(4)
    17OB(5)
    16OB(0)
    21OB(1)
    20OB(2)
    19ER(3)
    5ER(4)
    4ER(5)
    3ER(0)
    8ER(1)
    7ER(2)
    6EG(3)
    47EG(4)
    46EG(5)
    45EG(0)
    50EG(1)
    49EG(2)
    48EB(3)
    40EB(4)
    39EB(5)
    38EB(0)
    43EB(1)
    42EB(2)
    41
    CVBS1 8CVBS2 9S-VIDEO-C 5S-VIDEO-Y
    6VIDEO-Pb 3VIDEO-Pr 1VIDEO-Y 2VCOM 3VCOM
    4
    CN321A
    84
    85
    X301
    54MHzXIN XOUT
    CLEAR 15CLKV 14
    VCOM
    CONTROLQ971 IC981,CLEAR
    91959698
    STV1 13LP 44
    CN320A
    POL 43HMS1-E 10CLKH 12STH1 42HMS1-O 14
    WF11
    WF10
    WF12
    WF9
    VIDEO
    SIGNAL
    PROCESSNTSC/PAL 
    SEPARATIONBURST 
    LOCKED
    OUTPUT
    CONTROLCHROMA 
    DECODER
    SECAM PDM
    RCO
    PA N E L
    SIGNAL
    PROCESS
    TV
    SIGNAL
    PROCESS
    INPUT
    CONTROL
    CVBS
    Y C
    B GR
    A/DA/DA/DA/D
    33441342402131
    LP
    97187
    WF14
    WF13
    Comparison Chart of 
    Models & Marks
    Model
    MarkLCD-A1504
    LCD-A2004A
    B
    B G
    R
    B G R
    R905
    R907R901
    R904
    R902
    R997
     
    						
    							7-5
    LCD Block Diagram ( B )
    L4200BLLCD
    CN310A
    LCD MAIN CBA UNIT
    VIDEO SIGNAL
    IC301(LCD DRIVE / SIGNAL PROCESS)
    TO
    IF/VIDEO
    BLOCK
    DIAGRAM
    CN103A
    CN103B
    182181180179175174173
    CN311A
    ODDINV
    EVENINV STH1 POL LP
    CLKH1 LCD MODULE
    VREF(4) 10VREF(0) 14VREF(1) 13VREF(2) 12VREF(3) 11VREF(7) 6VREF(5) 8VREF(6) 7VREF(8) 5VREF(9) 4
    104105
    OR(0) 29OR(1) 28OR(2) 27OR(3) 26OR(4) 25OR(5) 24OG(0) 22OG(1) 21OG(2) 20OG(3) 19OG(4) 18OG(5) 17OB(0) 15OB(1) 14OB(2) 13OB(3) 12OB(4) 11OB(5) 10ER(0) 39ER(1) 38ER(2) 37ER(3) 36ER(4) 35ER(5) 34EG(0) 32EG(1) 31EG(2) 30EG(3) 29EG(4) 28EG(5) 27EB(0) 25EB(1) 24EB(2) 23EB(3) 22EB(4) 21EB(5) 20
    169168167166165161160159158155154153152151150146145
    LCD MODULE
    TP322TP323TP318TP319TP320TP321
    143142141140139135134133132131130129128127123122121120119116115114113106
    TP316TP317TP312TP313TP314TP315
    CVBS1 8CVBS2 9S-VIDEO-C 5S-VIDEO-Y
    6VIDEO-Pb 3VIDEO-Pr 1VIDEO-Y 2VCOM 17VCOM
    18
    979596
    STV1
    CLKV
    103
    CN311A CN313A
    STV1 14CLKV 16VCOM 1VCOM
    2
    98
    EVENINV 2ODDINV 8CLKH
    5
    CN310A
    STH1 37POL 38LP 39
    WF14
    WF13
    WF11
    WF10
    WF12
    WF9
    PANEL+10.8V
    R977
    VCOM
    VCOM
    CONTROL Q971 IC981,
    VIDEO
    SIGNAL
    PROCESSNTSC/PAL 
    SEPARATIONBURST 
    LOCKED
    OUTPUT
    CONTROLCHROMA 
    DECODER
    SECAM PDM
    RCO
    PANEL
    SIGNAL
    PROCESS
    TV
    SIGNAL
    PROCESS
    INPUT
    CONTROL
    CVBS
    Y C
    B GR
    A/DA/DA/DA/D
    84
    85
    X301
    54MHzXIN XOUT
    3344134240213191
    Comparison Chart of 
    Models & Marks
    Model
    MarkLCD-A1504
    LCD-A2004A
    B
    B G
    R
    B G
    R
    R905
    R907
    R901
    R904
    R902
    R994
     
    						
    							7-6L4100BLP
    Power Supply Block Diagram
    CAUTION !
    FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
    REPLACE ONLY WITH THE SAME TYPE T 4A , 250 V FUSE. NOTE : 
    The voltage for parts in hot circuit is measured using
    hot GND as a common terminal.CAUTION !
    Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
    If Main Fuse (F601) is blown, check to see that all components in the power supply
    circuit are not defective before you connect the AC plug to the AC power supply.
    Otherwise it may cause some components in the power supply circuit to fail.
    LINE
    FILTER L601
    AC601
    AC CORD
    BRIDGE
    RECTIFIER D605
    HOT
    COLD
    T601
    11912141516
    7
    43
    12
    MAIN CBA
    CN101A
    Q505Q504Q503
    HOT CIRCUIT. BE CAREFUL.
    532
    Q511
    Q502Q501
    REG+5VAL+3.3V
    AL+8V
    PROTECT-1
    +12VAL+33VP-ON-H
    Q506
    Q633
    PROTECT-2
    IC631+5V
    REG
    1013
    IC504+3.3V
    REG
    IC601
    ERROR
    VOLTAGE
    DET
    Q507Q512
    VR649
    TP401
    +B
    Q510
    412756
    PROTECT-3
    CN103A
    AL+5VP-ON-H2AL+13V
    Q508
    CN101B
    PANEL+25V77PANEL+3.3V44PANEL+10.8V11
    PANEL+25V PANEL+3.3V
    LCD MAIN CBA UNIT
    PANEL-6V10 10
    PANEL-6VPANEL+10.8V
    CN103B
    AL+8V 14 14AL+5V 13 13AL+3.3V 11 11
    REG+3.3V AL+5V
    AL+8V 15 15
    REG+1.8V
    AL+3.3VIC101+3.3V
    REG
    IC102+1.8V
    REG
    Q511
    SWITCHING
    REGULATOR IC602
    +B ADJ
    P-25V-ON
    AL+21V
    TO LCD BACKLIGHT
    BLOCK DIAGRAM (A)TO LCD BACKLIGHT
    BLOCK DIAGRAM (B)
    43
    12
    +8V
    REG IC503
    IC603
    ERROR
    VOLTAGE
    DET
    IC507+5V
    REG
    INVERTER CBA
    AL+21V 33AL+21V 22AL+21V 11AL+21V 44
    CN405
    CN1401
    P-ON-L
    B
    Comparison Chart of 
    Models & Marks
    Model
    MarkLCD-A1504
    LCD-A2004A
    B
    B
    B
    B
    A
    A
    F601
    T4A L 250V
    Q603
    Q602
    D505SHUNT
    REGULATOR(
    (
    D525SHUNT
    REGULATOR(
    (
    D649SHUNT
    REGULATOR(
    (
     
    						
    							7-7L4100BLLB
    LCD Backlight Block Diagram ( A )
    T40134
    BACK
    LIGHT
    CN401
    21
    2516
    10978
    OVER VOLTAGE
    PROTECTORQ423,Q427OVER VOLTAGE
    PROTECTORQ424,Q428
    T402342516
    10978
    BACK
    LIGHT
    CN402
    21
    SWITCHING Q425,Q426SWITCHING Q421,Q422
    OVER CURRENT
    PROTECTOR Q462
    PWM
    CONTOROL Q468
    BACKLIGHT-ADJ
    OVER VOLTAGE
    PROTECTOR Q464
    +
    Q461 Q460
    +12V
    SWITCHING Q466
    BACKLIGHT-SW
    SWITCHING
    BACKLIGHT-ON Q469
    PROTECT-1
    LCD MODULE MAIN CBA
    AL+13V
    Q463
    TO
    POWER 
    SUPPLY
    BLOCK
    DIAGRAM
    SWITCHING
    BACKLIGHT-ON Q467
    Q471
    Q470
    TO
    SYSTEM
    CONTROL
    BLOCK
    DIAGRAM
    Comparison Chart of 
    Models & Marks
    Model
    MarkLCD-A1504
    LCD-A2004A
    B
     
    						
    							7-8
    LCD Backlight Block Diagram ( B )
    L4200BLLB
    SW/
    SW CTL BACKLIGHT-SWRL1401
    Q1405,
    Q1406
    IC1401 (DC-AC INVERTER CONTROL) Q1403
    Q1402VCC
    12
    T1401
    CN1402
    LCD MODULE INVERTER CBA
    BACKLIGHT-ADJPROTECT-1
    SW/
    SW CTL Q1407,
    Q1408
    Q1401
    BACK
    LIGHTBACK
    LIGHTBACK
    LIGHTBACK
    LIGHT
    2627232428141191312
    11516
    +10V
    REG. OUTPUT
    LOGIC1
    OUTPUT
    LOGIC2
    LOGICOVER
    VOLTAGE
    PROTECT
    SLOW
    START
    OSC
    PWM2PWM1
    STANDBY
    PROTECT
    MODE SW
    457
    OVER VOLTAGE
    PROTECTORQ1410,1411OVER VOLTAGE
    PROTECTORQ1412,1413
    T1402
    CN1403
    OVER VOLTAGE
    PROTECTORQ1414,1415
    12
    T1403
    CN1404
    OVER VOLTAGE
    PROTECTORQ1416,1417OVER VOLTAGE
    PROTECTORQ1418,1419
    T1404
    CN1405
    OVER VOLTAGE
    PROTECTORQ1420,1421
    12
    10
    97
    316425
    10897
    316425
    10897
    316425
    10897
    316425
    108
    TO
    POWER
    SUPPLY
    BLOCK
    DIAGRAMAL+21V
    P-ON-H
    12
    IC1402
    (AMP)
    IC1403
    (AMP)1
    7
    2
    65
    3+-
    +-+-
    +-
    +-
    +-
    8
    1314
    910
    12
    1
    7
    2
    63
    5
    TO
    SYSTEM
    CONTROL
    BLOCK
    DIAGRAM
    Comparison Chart of 
    Models & Marks
    Model
    MarkLCD-A1504
    LCD-A2004A
    B
     
    						
    							L4100SCM1 8-3
    Main 1/4 & IR Sensor Schematic DiagramComparison Chart of 
    Models and Marks
    MODE L MARK
    LCD-A1504 A
    LCD-A2004 B
     
    						
    							L4100SCM2
    Main 2/4 Schematic Diagram
    8-4
     
    						
    							L4100SCM3
    Main 3/4 Schematic Diagram
    8-5
    Comparison Chart of 
    Models and Marks
    MODE L MARK
    LCD-A1504 A
    LCD-A2004 B
     
    						
    							L4100SCM4
    Main 4/4 Schematic Diagram
    8-6
    Comparison Chart of 
    Models and Marks
    MODE L MARK
    LCD-A1504 A
    LCD-A2004 B
    CAUTION !
    Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
    If Main Fuse (F601) is blown , check to see that all components in the power supply
    circuit are not defective before you connect the AC plug to the AC power supply.
    Otherwise it may cause some components in the power supply circuit to fail.CAUTION !
    For continued protection against fire hazard,
    replace only with the same type fuse.NOTE:
    The voltage for parts in hot circuit is measured using
    hot GND as a common terminal.
     
    						
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