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Casio TV-770C Service Manual & Parts Manual

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TV-770C
TV-770D
TV-770G
TV-770N
(KX-503)
AUG. 1996
(without price)
(PAL B / G, H)
(PAL I)
(PAL M)
(PAL B / G, H)
R

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  Summary of Contents for Casio TV-770C

  • Page 1 (without price) TV-770C (PAL B / G, H) TV-770D (PAL I) TV-770G (PAL M) TV-770N (PAL B / G, H) (KX-503) AUG. 1996...
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................1 BLOCK DIAGRAM ..................2 PRINTED CIRCUIT BOARDS ................ 3 EXPLODED VIEW ..................5 PARTS LIST ....................6 IC AND TRANSISTOR LEAD IDENTIFICATION .......... 9 SCHEMATIC DIAGRAMS ................11 WAVEFORMS ....................15...
  • Page 3: Specifications

    : AD-K64, 65 11. Options Car adaptor : CA-K65 Antenna matching device : AS-35S Model Color System TV System Channel TV-770C/N B/G, H CCIR VHF: 2 ~ 12 ch UHF: 21 ~ 69 ch TV-770D –/I — UHF: 21 ~ 68 ch...
  • Page 4: Block Diagram

    BLOCK DIAGRAM Antenna IC200 TU200 Q200 IC600 Speaker Video VR600 Sound Det. Audio Tuner IF Amp. Amp. AFT Circuit Volume AGC Circuit Control IC500 IC300 Tuning Voltage Common Chroma Generator Driver Circuit IC700 Osc. Display Segment Control Driver A-D Converter Auto-Tuning Control Q800~Q803, Q805, Q806...
  • Page 5: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS TOP VIEWS Linear C305 H300 L103 R335 R305 VR301 C351 R336 C330 R306 C210 F211 C208 F221 F210 T200 R255 R256 R253 T201 F220 R236 C281 R222 C263 C262 C259 R254 R261 R209 C245 R257 R212 CN710 D805 C800 R110...
  • Page 6 BOTTOM VIEWS Linear R645 VCC2-3 R116 R331 R330 C265 C642 C350 C348 R326 R610 C641 C347 R325 C250 R611 CP244 R641 C230 Q300 R225 R247 C635 R210 AUDIO CP590 C345 R706 C282 VIDEO HP210 R260 R258 R541 Q230 C246 R503 C530 R201 R208 D500...
  • Page 7: Exploded View

    EXPLODED VIEW LA900 — 5 —...
  • Page 8: Parts List

    2253 0476 Chip transistor 2SD1149-S(TX) TV-770 Common Q806 2230 7011 Chip transistor 2SD601A-R(TX) TV-770 Common Switches SW100 3412 0938 Slide switch ESD-11V231 TV-770C/G/N SW100 3412 1134 Slide switch ESD-11V221 TV-770D Converter T100 3065 0672 DC-DC converter LC12U-40 TV-770 Common Tuners...
  • Page 9 BL PCB Item Code No. Parts Name Specification Applicable Lamp LA900 3851 1918 Fluorescent lamp 3064BB-CA39 TV-770 Common Transistors Q950 2253 0308 Chip transistor 2SD1119-R(TX) TV-770 Common Q951 2253 0308 Chip transistor 2SD1119-R(TX) TV-770 Common Switches SW700 3412 1029 Switch SKHHAL TV-770 Common SW701...
  • Page 10 MAIN COMPONENT Item Code No. Parts Name Specification Applicable 6611 3500 Display plate CIM-K503 K440797-6 TV-770C 6611 4570 Display plate DAM-K503 K440928-1 TV-770D 6611 0980 Display plate BXM-K503 K440797-1 TV-770G 6611 3570 Display plate NDM-K503 K440797-7 TV-770N 6611 1010 Adhesive tape A-K503...
  • Page 11: Ic And Transistor Lead Identification

    IC AND TRANSISTOR LEAD IDENTIFICATION IC/LSI IC200 IC300 M51348FP-T1 M52045FP IF AGC OUT IF AGC ADJ VIDEO IF AGC IN SyOUT SY IN VCXO OUT RF AGC SyIN ACCF AGCDL AFTC SY OUT VCXO IN VCCv HDIN COLOR IFIN Y CLAMP TINT IFIN VIDEO...
  • Page 12 IC700 MSM6625-02GSK-640F VSS2 TRANSISTORS 2SD1119 2SD601A 2SB709A 2SD1149-S 2SC4238 — 10 —...
  • Page 13: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR (TV-770C/N) Antenna External Antenna Jack Tuner Display Voltage Generator Circuit Chroma Circuit IF Detection Circuit DC In Batteries Power Switch Tuning Voltage Generator Circuit 34.2 ~ 41.8 V Earphone Jack 3.95 V Speaker -6.1 ~ -7.3 V...
  • Page 14 LINEAR (TV-770D) Antenna External Antenna Jack Tuner Display Voltage Generator Circuit Chroma Circuit IF Detection Circuit DC In Batteries Power Switch Tuning Voltage Generator Circuit 34.2 ~ 41.8 V Earphone Jack 3.95 V Speaker -6.1 ~ -7.3 V Display Controller Circuit Notes: Audio Amplifier Circuit 1.
  • Page 15 LINEAR (TV-770G) Antenna External Antenna Jack Tuner Display Voltage Generator Circuit Chroma Circuit IF Detection Circuit DC In Batteries Power Switch Tuning Voltage Generator Circuit 34.2 ~ 41.8 V Earphone Jack 3.95 V Speaker -6.1 ~ -7.3 V Display Controller Circuit Audio Amplifier Circuit Notes: 1.
  • Page 16 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." — 14 —...
  • Page 17: Waveforms

    WAVEFORMS TV-770C/D/N 64 µs 64 µs 64 µs 1 Q200 collector 2 IC200 pin 19 3 IC200 pin 18 0.24 µs 64 µs 64 µs 4 IC300 pin 23 5 IC300 pin 12 6 IC300 pin 5 64 µs 64 µs...
  • Page 18 TV-770G 63.5 µs 63.5 µs 63.5 µs 1 Q200 collector 2 IC200 pin 19 3 IC200 pin 18 0.24 µs 63.5 µs 63.5 µs 4 IC300 pin 23 5 IC300 pin 12 6 IC300 pin 5 63.5 µs 63.5 µs 130 ns 7 IC300 pin 4 8 IC300 pin 1...
  • Page 19 MA0900461A...

This manual is also suitable for:

Tv-770dTv-770gTv-770n