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Casio TV-880B Service Manual & Parts List

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TV-880B
(KX-518B)
(For NTSC)
NOV. 1998
TV-880B
INDEX
R

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  Summary of Contents for Casio TV-880B

  • Page 1 (without price) TV-880B (KX-518B) (For NTSC) NOV. 1998 TV-880B INDEX...
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................1 BLOCK DIAGRAM ..................2 ADJUSTMENTS .................... 3 PRINTED CIRCUIT BOARDS ............... 5 EXPLODED VIEW ..................7 PARTS LIST ....................8 SCHEMATIC DIAGRAMS ................11...
  • Page 3: Specifications

    SPECIFICATIONS Item Specification 1. Type LCD Color Television 2. Reception Frequencies UHF: UHF band CH 14 – CH 69 (model B) CH 21 – CH 69 (models C and N) CH 21 – CH 68 (model D) VHF: VHF band CH 2 –...
  • Page 4: Block Diagram

    BLOCK DIAGRAM L-PCB LAMP TUNER VIF/SIF (TEAA1) (M51348FP) FILTER BL-PCB VCC2 (4.7 V) BATTERY 1.5 V × 4 DC DC VCC2 (4.0 V) INVERTER POWER SW VCC1-1 GND CONVERTER IRANS AC ADAPTOR 6V BAND SW VCC1-1 VCC7 (40 V) TRANS VEE1 (—5 V) VCC2 VCC7 BT...
  • Page 5: Adjustments

    ADJUSTMENTS 1. VCC2 adjustment, VCC2-3, VCC7, VEE1 voltage check 2. LLD coil adjustment 3. Free running frequency adjustment 4. Contrast adjustment 5. TINT pot adjustment Preparations 1. Connect AVB (CP725) to GND. 2. Set SW100 on UHF mode. Adjustment procedures 1.
  • Page 6 • Adjustment Monitoring HDB (CP305) with a frequency counter, adjust VR700 so that the frequency is 15.734 ± 0.1 [kHz]. • Caution (1) Disconnect the wire between SYF terminal and VCC2-7. Applying IF signal make sure that synchronization is normal on the display. (2) Use input signal pattern conforming CCIR standard.
  • Page 7: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS TOP VIEWS Linear Back Light — 5 —...
  • Page 8 BOTTOM VIEWS Linear Back Light — 6 —...
  • Page 9: Exploded View

    EXPLODED VIEW — 7 —...
  • Page 10: Parts List

    PARTS LIST LINEAR PCB Item Code No. Parts Name Specification Diodes D100 7101 1194 Chip diode MA111(TX) D110 2360 2520 Chip zener diode MA8051-L(TX) D150 7101 1194 Chip diode MA111(TX) D152 2390 1379 Schottky diode MA729-(TX) D155 2390 1470 Chip diode MA143A-(TX) D180 2390 1190 Diode...
  • Page 11 Item Code No. Parts Name Specification Q810 2253 0716 Chip transistor 2SD1824-S(TX) Q811 2253 0133 Chip transistor 2SD1819A-R(TX) Q813 2251 0189 Chip transistor 2SB1218A-R(TX) Q820 2253 0133 Chip transistor 2SD1819A-R(TX) Q821 2253 0133 Chip transistor 2SD1819A-R(TX) Q822 2253 0133 Chip transistor 2SD1819A-R(TX) Switch SW100...
  • Page 12 MAIN COMPONENT Item Code No. Parts Name Specification 6613 7030 Lower case BIM-K518 K140511-1 6613 7060 Battery cover A-K518 K241047-1 3851 1267 Rod antenna YH810721 6613 7180 Stand B-K518 K241040-1 6613 7190 Rating plate BIM-K518 K341435-1 6613 7170 Jack plate B-K518 K241058-1 6613 7014 Upper case ass'y K341446*1...
  • Page 13: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR IF Detection Circuit Audio Amplifier Circuit Antenna Antenna External Jack Earphone Jack Speaker Chroma Circuit Tunner Tunner Power Switch Tuning Voltage Generator Circuit 40 V 4.0 V –5 V Power Supply Circuit Display Controller Circuit Display Generator Voltage Circuit —...
  • Page 14 BACK LIGHT Notes: 1. All resistance values are indicated in "ohms" (k=10 ohms, M=10 ohms). µF). 2. All capacitance values are indicated in "µF" (p=10 3. All inductance values are indicated in "µH."...
  • Page 15 CASIO TECHNO CO.,LTD. Overseas Service Division Nishi-Shinjuku Kimuraya Bldg. 1F 5-25, Nishi-Shinjuku 7-Chome Shinjuku-ku, Tokyo 160-0023, Japan...

This manual is also suitable for:

Kx-518b