Samsung KCT52A, Training Manual

Page: 42 / 93

KCT52A Chassis
l
SAMSUNG GROUP
l
SAMSUNG GROUP
O
[
O
]
TOC
42
IC Pin Description
TDA8377 (IC201) Pin Description
Pin No Pin Name Description
1 SOUND IF INPUT 4.5 Mhz SIF signal input (1m Vrms max.)
2 EXT AUDIO INPUT External Audio input
3,4 VCO REF FILTER IF VCO tuning filter (2 X IF carrier freq.)
5 PLL LOOP filter PLL loop filter to stabilize PLL loop response
6 VIDEO OUT Composite video output
7 BUS (SCL) INPUT Serial clock input
8 BUS (SDA) INPUT Serial data input
9 BANDGAP DECOUPLING Reference voltage setting for IC operation
10 CHROMA INPUT Chroma signal input
11 T/CVBS INPUT Luminance signal input
12 Main B+ Main Power Supply
13 INT CVBS INPUT Composite video input
14 GND Ground
15 AUDIO OUT NC
16 DECOUPLING FILTER To remove noise in VCO loop output
17 EXT CVBS INPUT External composite video input (Terminate by cap.)
18 BLACK CURRENT INPUT Cathode block beam level input for compensation
19~21 R,G,B OUTPUT RGB output
22 ABL Beam current limiting input for compensation
23~25 R,G,B INPUT OSD & PIP RGB input
26 RGB INSERTION SWITCH Fast blanking signal input for internal & external RGB selection
27 Y INPUT Luminance input
28 Y OUTPUT Luminance output
29, 30 B-Y, R-Y OUTPUT NC
31, 32 B-Y, R-Y INPUT NC
33 SECAM REF OUTPUT NC