Samsung CKG7507 Block Diagram

10 Block Diagram

CKG7507L 10-1

TO D - COIL

ON THE CRT

CRT

-90V

( FROM FBT)

BRIGHTNESS

CONTROL

CONTRAST

CONTROL

+12V

+200V

-90V

+30V

FOCUS1,2

SCREEN

R G B

H/V

VIDEO BOARD

MAIN BOARD

H - SIZE

V - SIZE

H - POSI.

V - POSI.

S - PIN.

TRAPEZOID

PARA.

PIN - BALANCE

V - LIN.

VER.-BLANKING

GENERATOR

High Voltage

OUTPUT

G1

ABL

CIRCUIT

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

DEGAUSSING

BLOCK

RL601

AC-INLET

SOCKET

IS601

LINE FILTER

L601

CRT SOCKET BOARD

SOCKET

SK1

G1

HEATER

R G B

D-SUB INPUT

(15 PIN)

Video Pre-Amp

IC101(KA2140B)

VIDEO OUTPUT

IC101(LM2405T)

OSD DRIVE CONTROL

IC401(LSC4350)

TILT

ABL

R G B - CUTOFF

CONTROL(KA324)

H-SYNC, V-SYNC

V-MUTE

S-CORRECTION

LED

PS-1 (SUSPEND)

PS-2 (POWER-

OFF)

PWM CONTROL &

SWITCHING FET

IC601

RECTIFIER

(D601~D604)

SWITCHING

TRANS.

T601

+70V

+13V

-12V

+7V

TO VIDEO

+12V REGULATION

PS1,PS2 (FROM Micom)

CRT HEATER

+45V

+12V

HEATER

PS-2

POWER-OFF MODE CONTROL

(Q606)

2

EPROM

(24LC411)

IC203

FRONT CONTROL BOARD

V-SYNC

H-SYNC,

HOR./VER. OSC

PROCESSOR

(UPC1883)

IC401

MICOM

(BD-7)

IC201

HOR.-DY

CN400

CN401

CN402

VER. - DY

CN301

High Voltage

CONTROL

IC501

FBT

T501

HOR.- OUT

Q406

H-DEF.

TRANS

T401

HOR.-DEF.

STEP-UP

CONVERTER

Q411

VER. OUTPUT

IC301

High Volt.-DRIVE

Q501

HOR.-DRIVE

Q403

POSITION

SIZE

G/D

COLOR TEMP

RECALL

DEGAUSS

ADJUSTMENT

BRIGHTNESS

CONTRAST

LED

VER. OUTPUT & TILT CONTROL

Memo

10 Block Diagram

10-2 CKG7507L