Casio jy10g Schematic

JY-10G (PAL)

INDEX

(KX-513)

JUN. 1998

(without price)

UHF
VHF

13

30 40 50 62 CH

1

POWER

ANT

TUNING

CH2 3 4681012

EXT

EAR

DC IN 6V

VHF UHF

R

CONTENTS

Page

SPECIFICATIONS

BLOCK DIAGRAM.................................................................................... 1

PRINTED CIRCUIT BOARDS................................................................... 2

PARTS LIST.............................................................................................. 4

EXPLODED VIEW..................................................................................... 6

SCHEMATIC DIAGRAMS......................................................................... 7

WAVEFORMS ...........................................................................................9

SPECIFICATIONS

Item Specification

1. Power voltage DC 6.0 V

2. Power consumption Approx. 3.5 W

3. Current consumption Approx. 580 mA

4. Battery life (with alkaline batteries) Approx. 4 hours
Batteries : 4 × LR6 (D) size batteries

5. Power supply Car adaptor : CA-K65
AC adaptor : AD-K64
Earphone jack : 3.5 ø mini

6. Connection terminals External power jack : 6.0 V DC IN
External antenna jack : 3.5 ø mini

7. Screen size 2.3 inches

8. No. of picture element 39,600 (360 × 110) dots

9. Dimensions 84 mm (H) × 138 mm (W) × 51 mm (D)

10. Weight 230 g without batteries
AC adaptor : AD-K64

11. Options Car adaptor : CA-K65
Antenna matching device : AS-35S

Color System TV System Channel

PAL M / M US VHF: 2 ~ 13 ch UHF: 14 ~ 69 ch

Antenna

BLOCK DIAGRAM

Power
Supply

1 TU200 2 Q200

IF Amp.Tuner

7

IC500

Tuning
Voltage
Generator

VCC2 (3.95 ± 0.02 V)
VCC7 (34.2 ~ 41.8 V)
VEE1 (– 6.03 ~ – 7.37 V)

VR800

Brightness
Control

3 IC200

Video
Sound Det.
FM
AFT Circuit
AGC Circuit

5

6

IC300

Chroma
Circuit

IC700

Osc.
Display
Control
A-D Converter
Auto-Tuning
Control

8 Q800 ~ Q803, Q805, Q806

Display
Voltage
Generator

VR600

Volume
Control

4 IC600 Speaker

Audio
Amp.

Common
Driver

LCD

Segment
Driver

1 — Color Tuner: TU200 TEPU5-02

Selects a desired radio wave and changes it to the video IF signal.

2 — Video IF Amp.: Q200 2SC4238

Amplifies the video IF signal output from the tuner TU by 10 times (20 dB).

3 — Video Det./Sound Det./FM Det./AFT/AGC: IC200 M51348FP

Eliminates the carrier wave in the video IF signal, and picks up the video signal and the sound IF signal.
Also, the sound signal is picked up from the sound IF signal by FM detection.

4 — Audio Amp.: IC600 NJM2070M

Sound amplification.

5 — Chroma Circuit: IC300 M52042FP

Generates the tricolor (red, green, and blue) from the video signal.

6 — Osc./A-D Converter/Display Control/ Auto-Tuning Control : IC700 MSM6625-02 GSK-640F

Converts the color signal into a digital signal.
Also, generates the clock pulse for the display and controls the display.

7 — Tuning Voltage Generator: IC500 MSC1169MS-K

Generates the tuning voltage with the tuning pulse (TU) output from 6.

8 — Display Voltage Generator: Q800 ~ Q803 Q805 Q806 2SD1149-S,

2SD601A-R×4, 2SB709A-R
Generates the display voltages V0 ~ V4 with VEE1 and VCC7 outputs from the power supply.

— 1 —

TOP VIEWS
Linear

C110

SW110

T100

R170

R121

R120

C137

Q101

VR100

R105

JK100

D180

JK600

HP210

JK200

C603

C112

C105

D110

CN710

L101

C100

C113

C115

HP110

L102

C202

Q805

C782
C770

C700

TU200

PRINTED CIRCUIT BOARDS

D805

C841

R745

L710

C808

R550

1

R500

C530

C550

D803

R501

R503

D500

CN700

R502

C545
R545

C800

C806

D707

R738

C535R704

CN720

VR700

R705

C750
C751

D703

C236

R700

R224

R201

R203

IC700

R205

C238

F200

VR200

HP100

1

C205

C740

C741

C742

L103

C208

C207

VR300

C345
R322
C346

R222

IC300

VR301

C305

R330C350

F210

R223
C259
R236

R251

1

C210

C309

C303

F220

H300

T200

T201

L202

F203

JK250

VR800

VR600

C606

Back Light

CN920

L950

Q950

C925

Q951

R950

Switch

SW100

C927

T900

— 2 —