Casio EV-510C, EV-510D, EV-510I, EV-510N Service manual

EV-510C(PAL B / G,H)

INDEX

EV-510D(PAL I)
EV-510I (PAL B / G)
EV-510N(PAL B / G,H)

FEB. 1997

(without price)

UHF
VHF

13

30

1

2

3

< TUNNING >

EV-510

40

50

62

4681012

CH
CH

R

CONTENTS

SPECIFICATIONS ......................................................................................... 1

BLOCK DIAGRAM ........................................................................................ 2

PRINTED CIRCUIT BOARDS ....................................................................... 3

EXPLODED VIEW ......................................................................................... 5

PARTS LIST .................................................................................................. 6

SCHEMATIC DIAGRAMS ............................................................................. 9

WAVEFORMS.............................................................................................. 12

SPECIFICATIONS

Item Specification

1. Power voltage DC 6.0 V

2. Power consumption Approx. 2.3 W

3. Current consumption Approx. 383 mA

Batteries : 3 AA size batteries

4. Power supply Car adaptor : CA-K65
AC adaptor : AD-K65

Earphone jack : 3.5ø mini

5. Connection terminals External power jack : 6.0 V DC IN
External antenna jack : 3.5ø mini
Audio / Video jack : 3.5ø

6. Screen size 2.5 inches

7. No. of Picture element 61,380 (220 × 279) dots

8. Dimensions 75 (W) × 26.7 (D) × 120.8 (H) mm

9. Weight 195 g excepting batteries

AC adaptor : AD-K65, 64

10. Options Car adaptor : CA-K65
RF connector : CF-13
Antenna matching device : AS-35S

Model Color System TV System Channel

EV-510C/N PAL B/G, H CCIR VHF: 2 ~ 12 ch UHF: 21 ~ 69 ch

EV-510D PAL –/I UK — UHF: 21 ~ 68 ch

EV-510I PAL B/G ITALY VHF: A ~ H2 ch UHF: 21 ~ 69 ch

— 1 —

Antenna

BLOCK DIAGRAM

Power
Supply

1 TU200 2 Q200

IF Amp.Tuner

7

IC270

Tuning
Voltage
Generator

VCC2 (4.5 ± 0.02 V)
VCC7 (25.9 ~ 31.3 V)
VCC6 (10.8 ~ 12.0 V)
VEE1 (–8.5 ~ –7.5 V)
VEE2 (–19.8 ~ –17.2 V)

3 IC200

Video
Sound Det.
FM
AFT Circuit
AGC Circuit

5

6

IC300

Chroma
Circuit

IC700

Display
Control
Auto-Tuning
Control

Det

4 IC600 Speaker

VR600

Audio

Amp.
Volume
Control

LCD

1 — Color tuner: TU200 TEPE5-01 (EV-510C/I/N) TEPB5-05 (EV-510D)

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 tuner TU200 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 IR3P96-1

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

6 — Display control/Auto-tuning control: IC700 MSM6770CGS

Controls the display.

7 — Tuning voltage generator: IC270 BA10358F

Generates the tuning voltage with the tuning pulse output from 6.

— 2 —

,

,

TOP VIEWS

PRINTED CIRCUIT BOARDS

Linear

JK200

C225

GND GND

+

C202

+

TU200

+

L101

+

+

C118

C746R780

C120

C112

VR100

SW100

R105
TM100

+

C100

C145

T100

C114

IC700

615C-L

R736

D180

JK100

FU100

C353

C352

C306

+

C305

C334

R737

C333

+

L301

H300

C300

R750
R751

C725

L310

+

+

R761
C781

R312

C355

C374

C312

R302

C315

+

C110

+

C116

+

1

C752

C375

C220

L102

R715

Q760

R716

R707
R705
R701

HP900

+

+

C215

F200

+

C205

R212R209R222

C245

GND

T201 T200

+

+

C710

R710

R711

Q710
R706

C606

R703

+

C600

C603C311

+

C376C381

C380

C301

+

C207

C259

R758
Q750

R759

+

C236R223

C208

+

R224

R227

R230
C257

+

C210

+

,

,

JK250

JK600

R229

F203 F202 F201

CN700

VR600

VR304

BL

615BL

R720

CN702

L950

Q951

R950

— 3 —

Q950

C925

T950

CN950

C927