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  • 21MF2-S/U/RU , 21PF2-S/U/RU

    7 1

    CHAPTER 7. CHASSIS LAYOUT

    [1] CHASSIS LAYOUT

    33

    3

    (QKITPD746WJN3 )

    3

    QP

    WB

    FD

    74

    7W

    JN3

    21MF2-S / U / RU21PF2-S / U / RU

    A

    C

    B

    D

    E

    F

    G

    H

    2 1098765431

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    CHAPTER 8. BLOCK DIAGRAM

    [1] BLOCK DIAGRAM: MAIN UNIT

    21MF2-S / U / RU21PF2-S / U /RU

    A

    C

    B

    D

    E

    F

    G

    H

    2 1098765431

    8 1

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    19181716151413121110

    8 2

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    [2] BLOCK DIAGRAM: CRT UNIT

    21MF2-S / U /RU21PF2-S /U / RU

    A

    C

    B

    D

    E

    F

    G

    H

    2 1098765431

    8 3

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    9 1

    TV21MF2-S/U/RU , 21PF2-S/U/RUService Manual21MF2-S/U/RU , 21PF2-S/U/RUMarketE CHAPTER 9. DESCRIPTION ON SCHEMATIC DIAGRAM

    [1] DESCRIPTION OF SCHEMATIC DIAGRAM

    SAFETY NOTES:

    DISCONNECT THE AC PLUG FROM THE AC OUT-

    LET BEFORE REPLACING PARTS.

    SEMICONDUCTOR HEAT SINKS SHOULD BE RE-

    GARDED AS POTENTIAL SHOCK HAZARDS

    WHEN THE CHASSIS IS OPERATING.

    1.

    2.

    NOTES:

    The unit of resistance "ohm" is omitted.(K = 1000 ohms, M = Mega ohm).

    1.

    All resistors are 1/16 watt, unless otherwise noted.2.

    All capacitors are F, unless otherwise noted.(P = F).

    3.

    VOLTAGE MEASUREMENT CONDITIONS:

    Voltages in parenthesis measured with no signal.1.

    Voltages without parenthesis measured with 3mV B & Wor Colour signal.

    2.

    All the voltages in each point are measured with VTVM.3.

    WAVEFORM MEASUREMENT CONDITIONS:

    The colour bar generator signal of 1.0V peak applied atpin (41) of IC801.

    1.

    Approximately 4V AGC bias.2.

    SERVICE PRECAUTION:

    THE AREA ENCLOSED BY THIS LINE ( - ) IS DI-

    RECTLY CONNECTED WITH AC MAINS VOLTAGE.

    WHEN SERVICING THE AREA, CONNECT AN ISOLAT-

    ING TRANSFORMER BETWEEN TV RECEIVER AND

    AC LINE TO ELIMINATE HAZARD OF ELECTRIC

    SHOCK.

    CAUTION:

    This circuit diagram is a standard one, prited circuits may

    be subject to change for product improvement without pri-

    or notice.

    IMPORTANT SAFETY NOTICE:

    PARTS MARKED WITH " " ( ) ARE IMPO-

    TANT FOR MAINTAINING THE SAFETY OF THE SET.

    BE SURE TO REPLACE THESE PARTS WITH SPECI-

    FIED ONES FOR MAINTAINING THE SAFETY AND

    PERFORMANCE OF THE SET.

    32

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    10 1

    CHAPTER 10. WAVEFORM

    [1] WAVEFORMS

    129.16 Vp-p (H) 114.16 Vp-p (H) 140.83 Vp-p (H)

    500 Vp-p1.02 KVp-p (H) 52.08 Vp-p (V) 4.08 Vp-p (V) 130 Vp-p (H)

    59.16 Vp-p (H)4.58 Vp-p (H)4.83 Vp-p (V) 1.45 Vp-p (V)5.83 Vp-p (H)

    0.96 Vp-p (H) 4.75 Vp-p (H) 4.37 Vp-p (H) 5.16 Vp-p (H) 5.29 Vp-p (H)

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    TV21MF2-S/U/RU , 21PF2-S/U/RUService Manual21MF2-S/U/RU , 21PF2-S/U/RUMarketE CHAPTER 11. SCHEMATIC DIAGRAM

    [1] SCHEMATIC DIAGRAM: CRT UNIT ( 21MF2-S / U , 21PF2-S / U )

    [2] SCHEMATIC DIAGRAM: CRT UNIT ( 21MF2-RU , 21PF2-RU )

    21MF2-S/U21PF2-S/U

    A

    C

    B

    D

    1 2 3 4 5 6 7 8 9 10

    A

    C

    B

    D

    1 2 3 4 5 6 7 8 9 10

    11 1

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    [3] SCHEMATIC DIAGRAM: MAIN UNIT

    21MF2-S/U21PF2-S/U

    A

    C

    B

    D

    E

    F

    G

    H

    2 1098765431

    11 2

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    19181716151413121110

    11 3

  • 21MF2-S/U/RU , 21PF2-S/U/RU

    A

    C

    B

    D

    E

    F

    G

    H

    1 2 3 4 5 6 7 8 9 10

    11 4

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    10 11 12 13 14 15 16 17 18 19

    11 5