Samsung CKB5237 Block Diagram

8 Block Diagrams

CKB5237L

CKB5237L/7227L 8-1

H/V

+210V

+30V

+12V

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

CRT

VIDEO OUTPUT

R G B

CRT SOCKET BOARD

SOCKET

IC102(LM2405T)

SK1

R G B - CUTOFF

ICONTROL(IC103)

G1

SCREEN

FOCUS1

MAIN BOARD

HEATER

High Voltage

CN301

CN300

VER. - DY

VER. OUTPUT

V-SYNC

FBT

CONTROL

IC501

IC300

HOR./VER. OSC

T501

High Voltage

CONTROL

OUTPUT

High Volt.-DRIVE

Q512

PROCESSOR

(TDA9109)

HOR.-DY

CN400

CN401

HOR.- OUT

Q406

HOR.-DRIVE

Q403

IC302

ACL

CIRCUIT

CN402

CONTRAST

CONTROL

G1

H-DEF.

TRANS

T402

HOR.-DEF.

STEP-UP

VER.-BLANKING

GENERATOR

(Q301)

BRIGHTNESS

CONTROL

+12V

TO VIDEO

+75V

+45V

SWITCHING

-210V

( FROM FBT)

PS1,PS2 (FROM Micom)

+12V REGULATION

+13V

TRANS.

VER. OUTPUT & TILT CONTROL

-12V

T601

HEATER

CRT HEATER

POWER-OFF MODE CONTROL

+7V

PS-2

(Q601, Q602)

H-SYNC,

RECTIFIER

(D600,D602,

L600/L602

LINE FILTER

AC-INLET

SOCKET

CN603

D603,D604)

VIDEO BOARD

Video Pre-Amp

IC101(KA2143)

R G B

S/Cable INPUT

OSD DRIVE CONTROL

IC104(LSC4390)

H-SYNC, V-SYNC

FRONT CONTROL BOARD

H-SYNC1

V-SYNC1

SDA

SCL

H-SIZE

MICOM

IC202

MENU EXIT

BRIGHTNESS

CONTRAST

I-SENSE

ENTER

REGIN

LED

POWER

V-MUTE

S-CORRECTION

LED

PS-1 (SUSPEND)

PS-2

2

EPROM

(24LC04B)

IC205

TILT

(POWER-OFF)

DEGAUSSING

BLOCK

TO D - COIL

PWM CONTROL &

SWITCHING FET

IC602

RL601

ON THE CRT

CKB7227L

8 Block Diagrams

8-2 CKB5237L/7227L

H/V

–210V

+30V

+12V

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

CRT

R G B

CRT SOCKET BOARD

SOCKET

SK1

G1

SCREEN

FOCUS1,2

MAIN BOARD

HEATER

High Voltage

CONTROL

VER. - DY

CN300A

VER. OUTPUT

FBT

T501

IC501

High Voltage

IC300

High Volt.-DRIVE

HOR./VER. OSC

PROCESSOR

CONTROL

OUTPUT

Q512

(TDA9109)

IC302

ACL

CN400

CN402

HOR.-DY

HOR.- OUT

Q406

HOR.-DRIVE

Q403

CIRCUIT

H-DEF.

TRANS

HOR.-DEF.

VER.-BLANKING

GENERATOR

CONTRAST

CONTROL

G1

T402

STEP-UP

(Q301)

BRIGHTNESS

CONTROL

+12V

TO VIDEO

+75V

+45V

-210V

( FROM FBT)

PS-2

PS1,PS2 (FROM Micom)

+12V REGULATION

+13V

HEATER

CRT HEATER

VER. OUTPUT & TILT CONTROL

+7V

-12V

POWER-OFF MODE CONTROL

(Q601, Q602)

VIDEO OUTPUT

IC102(LM2405T)

R G B - CUTOFF

ICONTROL(IC103)

VIDEO BOARD

Video Pre-Amp

IC101(KA2143)

R G B

S/Cable INPUT

OSD DRIVE CONTROL

IC104(LSC4390)

H-SYNC, V-SYNC

V-SYNC

H-SYNC,

FRONT CONTROL BOARD

H-SYNC1

V-SYNC1

SDA

SCL

H-SIZE

MICOM

IC202

MENU EXIT

BRIGHTNESS

CONTRAST

I-SENSE

ENTER

REGIN

LED

POWER

V-MUTE

S-CORRECTION

LED

PS-1 (SUSPEND)

PS-2

2

EPROM

(24LC04B)

IC205

SWITCHING

TILT

(POWER-OFF)

DEGAUSSING

BLOCK

TO D - COIL

ON THE CRT

TRANS.

T601

PWM CONTROL &

SWITCHING FET

IC602

RL601

RECTIFIER

(D600, D601,

L600/L602

LINE FILTER

AC-INLET

SOCKET

CN603

D603,D604)