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Casio TV-880C Manual

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INDEX
TV-880C
TV-880I
TV-880N
TV-880D
(KX-518)
FEB. 1999
TV-880
(without price)
(PAL B / G,H)
(PAL B / G)
(PAL B / G,H)
(PAL I)
R

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  Summary of Contents for Casio TV-880C

  • Page 1 (without price) TV-880C (PAL B / G,H) TV-880I (PAL B / G) TV-880N (PAL B / G,H) TV-880D (PAL I) (KX-518) FEB. 1999 TV-880 INDEX...
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................1 BLOCK DIAGRAM ..................2 ADJUSTMENTS .................... 3 TV-880C/I/N ....................4 TV-880D ..................... 7 PRINTED CIRCUIT BOARDS ..............10 EXPLODED VIEW ..................12 PARTS LIST ....................13 SCHEMATIC DIAGRAMS ................16...
  • Page 3: Specifications

    83 (W) × 36 (D) × 128 (H) mm 13. Weight Approx. 6.7 oz 190 g (excluding batteries) Model Color System TV System Channel TV-880C/N B/G, H CCIR VHF: 2 ~ 12 ch UHF: 21 ~ 69 ch TV-880D –/I —...
  • 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

    ADJUSTMENT 1. VCC2 adjustment, 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 And Test Point Locations VR301 : Tint adjustment VR300 : Contrast adjustment T200 : LLD Coil adjustment...
  • Page 6: Tv-880C/I/N

    Adjustment procedures (TV-880C/I/N) 1. VCC2 adjustment, VCC7, VEE1 voltage check • Condition Power supply: Vcc1-1 = 5.0 ± 0.05 [V] • Adjustment Apply 5.0 ± 0.05 [V] on Vcc1-1 (CP101). Adjust VR100 so that Vcc2 (CP102) voltage becomes 4.00 ± 0.02 [V].
  • Page 7 3.Free running frequency adjustment • Conditions (1) Signal No signal (PAL standard signal should be applied only at synchronous check) (2) Signal level Input electric field only at synchronous check: 70 dBµ (terminated with 75-ohm resistance), P/S = 10 dB (3) Other conditions CCIR IF input only at synchronous check (input electric field with 75-ohm termination).
  • Page 8 • Caution (1) Make sure that there is no distortion on the waveforms. (2) Connect COLOR terminal of Chroma IC (M52045FP) to GND. (3) Monitor the B output signal with an oscilloscope via a low-pass filter (C = 2700 pF, R = 100 ohm). •...
  • Page 9 Adjustment procedures (TV-880D) 1. VCC2 adjustment, VCC7, VEE1 voltage check • Condition Power supply: Vcc1-1 = 5.0 ± 0.05 [V] • Adjustment Apply 5.0 ± 0.05 [V] on Vcc1-1 (CP101). Adjust VR100 so that Vcc2 (CP102) voltage becomes 4.00 ± 0.02 [V]. •...
  • Page 10 3.Free running frequency adjustment • Conditions (1) Signal No signal (PAL standard signal should be applied only at synchronous check) (2) Signal level Input electric field only at synchronous check: 70 dBµ (terminated with 75-ohm resistance), P/S = 7 dB (3) Other conditions UK IF input only at synchronous check (input electric field with 75-ohm termination).
  • Page 11 • Caution (1) Make sure that there is no distortion on the waveforms. (2) Connect COLOR terminal of Chroma IC (M52045FP) to GND. (3) Monitor the B output signal with an oscilloscope via a low-pass filter (C = 2700 pF, R = 100 ohm). •...
  • Page 12: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS TOP VIEWS Linear Back Light — 10 —...
  • Page 13 BOTTOM VIEWS Linear Back Light — 11 —...
  • Page 14: Exploded View

    EXPLODED VIEW — 12 —...
  • Page 15: Parts List

    PARTS PRICE LIST TV-880C/I/N/D Item Code No. Parts Name Specification Quantity Price Code R LINEAR PCB Connector CN700 35021718 Connector 52559-2290 CN710 35022586 Connector 9210B-1-04Z604-T Diodes Chip diode D100 71011194 MA111-(TX) Chip zener diode D110 23603092 MA8047-L(TX) Chip diode D150...
  • Page 16 Item Code No. Parts Name Specification Quantity Price Code R Chip transistor Q811 22530133 2SD1819A-R(TX) Chip transistor Q813 22510189 2SB1218A-R(TX) Chip transistor Q820 22530133 2SD1819A-R(TX) Chip transistor Q821 22530133 2SD1819A-R(TX) Chip transistor Q822 22530133 2SD1819A-R(TX) Switch SW100 34120938 Slide switch ESD-11V231 SW100 34121134...
  • Page 17 CMG23C1-TO 66137300 sealed case A-K518 K241038-1 38311095 Speaker 28-8AB-09 66091290 Screw A-K610 K412031-1 66099630 Screw A-K720 K410188-6 58600532 Screw BT31.7X9 C:TV-880C(PAL B/G,H) I:TV-880I(PAL B/G) N:TV-880N(PAL B/G,H) D:TV-880D(PAL I) NOTE: Q - Quantity per unit - 15 - R - Rank...
  • Page 18: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR (TV-880C/I/N) IF Detection Circuit Audio Amplifier Circuit Antenna External Antenna 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 19 LINEAR (TV-880D) IF Detection Circuit Audio Amplifier Circuit Antenna External Antenna 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 20 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." — 18 —...
  • Page 21 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:

Tv-880iTv-880nTv-880d