Samsung KCT52A, Training Manual

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KCT52A Chassis
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TOC
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IC Pin Description
Micom (IC901) Pin Description
Pin No Pin Name In/Out Description
2 OSD-CONTRAST OUTPUT OSD Contrast level adjustment
3, 4 AV0, AV1 OUTPUT TV/AV mode selection control
5 SPOT OUTPUT CRT spot prevention control
6 S.MUTE OUTPUT Sound mute control
7 CCD OUTPUT Caption Brightness control
9, 10 KEY-IN1, IN2 INPUT Key matrix input
11, 14 MPX 0, 1 OUTPUT MTS mode selection
12 HOLD INPUT Power failure detection
15 LED2 OUTPUT LED drive signal output
17 D-COIL OUTPUT Degaussing coil control
18 POWER OUTPUT Power on/off
19, 20 A/V-IN1, IN2 INPUT Detection of AV Jack plugged in
22~24 R, G, B OUTPUT OSD RGB output
25 BLK OUTPUT OSD blanking signal output
26 H-SYNC INPUT H-Sync input
27 V-Sync INPUT V-Sync input
28 OSC-IN(C-IN) INPUT Composite video input
29 OSC-OUT(LOOP) IN/OUT Loop out of Pin 28
31, 32 XTAL 2, 1 IN/OUT Oscillation for Micom Operation
33 RESET INPUT Micom initialization
34 VDD INPUT Main B+
35, 37 PIP-AV0, AV1 OUTPUT PIP TV/AV Selection
36 IR-IN INPUT Remote signal input
38 BUS STOP OUTPUT Factory use
39 STEREO INPUT Stereo indication input
40 SAP INPUT SAP indication input
41, 42 SCL, SDA IN/OUT Bus control
EEPROM (IC902) Pin Description
Pin No Pin Name In/Out Description
1~3 A0 ~ A2 Input Address Inputs
4 Vss - Ground
5, 6 SDA, SCL In/Out Serial clock/Data
7 WC Input Write Control input
8 Vcc Input Supply voltage
*Memory capacity: 256 X 8 bits (256 words), Retention: 10
years