SAMSUNG PG17ISBU_EDC Service Manual

8 Block Diagram

PG17**/PG19**/PG21** 8-1

VIDEO

OUTPUT

FA4111B

BNC/D-SUB

SELECT IC

BA7657S

COLOR ADJUST

CONTROL(JIG)

COLOR GAIN CONTROL

VIDEO

CUTOFF

CONTROL

HORIZONTAL

BLANK

BRIGHTNESS

CONTROL

HORIZONTAL

BLANK

MUTE

AC INLET SOCKET

LINE FILTER

RECTIFIER

D3SBA60

AC INPUT

90-264VAC

60/50Hz

DEGAUSS

OPERATION

D-COIL

SWITCHING

TRANS

+33V

+14V

+7V

-14V

+14V_I

+80V

+210V

H-DRIVE

CRT HEATER

VERT OUT

SUSPEND

+58V

DEGAUSS

DDC-DATA

DDC-CLK

S-RASTER

H-SYNC/

V-SYNC

OUT

SDA/SCL

CRYSTAL

24MHz

R G B

CRT

R G B

MICROPROCESSOR

ST72T752

D D C

CONTROL

24LC21A

S-CORRECTION

LED

VIDEO PRE-AMP

M52748

OSD

KS2501

SDA/SCL

ERROR

DETECT

& FEED BACK

POWER SYNC

H-SYNC

TRIGGER

PWM CONTROL &

SWITCHING FET

KA2S1265

BNC/D-SUB

R.G.B

H-SYNC

V-SYNC

INPUT

H-SYNC

V-SYNC

POWER OFF

CONTROL

VIDEO OUTPUT

VOLTAGE

REGULATOR

KA78R12

VOLTAGE

REGULATOR

KA7805

+5V

SOG

HOR.VER. OSC

PROCESSING

SAM9222G

H/V DRIVE

DYNAMIC

FOCUS

HORIZONTAL

FOCUS CIRCUIT

H-AFC

HOR. OUTPUT

2SC5584

H-DY

HORIZONTAL

REGULATION

CONTROL

HOR. REGULATION

OUTPUT

(PWM CONTROL)

REGULATION

SENSER

HOR. DRIVE

S-CORRECTION

FBT

H/V OUTPUT

2SC5296

H/V REGULATION

ERROR

FEEDBACK

X-RAY

PROTECTOR

VERTICAL BLANKING

GENERATOR

VERTICAL OUTPUT

TDA8172

V-DY

VERTICAL FOCUS

CIRCUIT

+12V

HIGH VOLTAGE

SCREEN

G2

FOCUS1, 2

H_LIN.

MOIRE

TILT

CLAMP

ACL

CONTROL BUTTON

OSD CALL/ENTER

POSITION/SIZE

PIN/TRAP

PARALLEL/ROTATION

CHOOSE OR ADJUST

MENU BUTTON

POWER BUTTON

CONTRAST

BRIGHTNESS

H-FLB

V-FLB

SELECT

ACL

CLAMP

DDC-DATA

DDC-CLK

H-LIN

MUTE

SELECT

SOG

Memo

8 Block Diagrams

8-2 PG17**/PG19**/PG21**