Samsung PN17LT-LO Block Diagram

8 Block Diagrams

PN17LT/LO 8-1

S
C
R
E
E
N

RGB

VIDEO BOARD

TO D-COIL
ON THE CRT

VIDEO INPUT

H/V SYNC

VIDEO OUTPUT

IC103

RGB - CUTOFF

IC102

G1

HEATER

VIDEO PRE-AMP

+ OSD

IC101
IC104

SOCKET

FBT

T501

H/V SIZE

REG.

VERTICAL

FOCUS

HOR. DY

CN401

VER. DY

CN401

H. D. T

T401

S-COR.

VER. OUTPUT

IC301

HOR. DRIVE

Q403

HOR./VER.

PROCESSOR

IC401

H-SYNC1
V-SYNC1
E/W_OUT

12C DATA

12C CLK

REG.

V-MUTE

S-CORRECTION

PS-2(POWER OFF)

HOR. LINEARITY

TILT

POWER

PWM CONTROL

IC601C

BRIDGE

RETIFIER

EPROM

IC202

DEGAUSSING

BLOCK

RL601

UP, DOWN

BRIGHTNISS

CONTRASTER

PIN, TRAP

SIZE, POSI,

DEGA.

LED

POWER

AC INPUT

SOCKET

CN601

LINE

FILTER

L601

SWITCHING

TRANS

T601

ACL

CIRCUIT

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

+50V

-12V

+13V

+6.3V

Q610

+70V

CRT HEATER

13V_1

+12V REGULATOR

HEATER

VER. OUT

VER.OUT & TILT / H_LIN. CONTROL

12V

G1

TO VIDEO

-140V

+30V

+12V

CONTRAST
CONTROL

BRIGHTNESS
CONTROL

-140V

(FROM FBT)

VER. BLANKING

Q303

KSC945

OFF MODE

(FROM MCU)

24LC04

FROM MCU

B(+)

FROM IC401

H-SYNC, V-SYNC

TDA4859

KA2142

FRONT CONTROL
BOARD

SIGNAL

MAIN BOARD

H/V

F
O
C
U
S

MCU

IC201

HOR. OUT

Q404

DYNAMIC FOCUS

T502

Memo

8 Block Diagrams

8-2 PN17LT/LO