Samsung CS21A9W2QS/MUR Service Manual page 10

4-6-2 UOC MICOM Part Pin Port Function
Pin No FUNCTION
1 POWER
2 SCL
3 SDA
4 MUTE
5 STD-BY & BUS-STOP
6 KEY-1
7 KEY-2
SC1-ID & CHINA SOUND
8
& SAW S/W
9 GND
10 TV/VIDEO S/W
NT/PAL & AW-S/W
11
& L/L'-S/W
54 VDDA 3.3V
55 VPE
56 VDDC 3.3
57 OSCGND
58 XTAL IN
59 XTAL OUT
60 RESET
61 VDDP
62 SIGNAL IN
63 BILINGUAL
64 HOLD
Samsung Electronics
INITIAL
LOW ACTIVE HIGH
SERIAL H E 2 PROM/UOC/TUNER/MSP34XX SCL LINE
SERIAL H E 2 PROM/UOC/TUNER/MSP34XX SCL LINE
LOW ACTIVE HIGH
LOW & HIGH STD-BY:LOW, NORMAL
HIGH MENU, VOL-DOWN, VOL-UP CONTROL
HIGH CH-DOWN, CH-UP, TV/VIDEO CONTROL
TV MODE : OV
4.5Mhz : LOW
Digital GND for MICOM
TV MODE : OV
HIGH PAL : HIGH
HIGH Analog supply of TTX and Digital supply of TV(3.3V)
GND OTP Programming voltage
HIGH Digital supply to core(3.3V)
Oscillator GND supply
XTAL oscillator input
XTAL oscillator output
LOW POWER ON : 25ms HIGN -> LOW
HIGH Digital supply to periphery(3.3V)
PRE AMP Signal input
Select bilingual
HIGH TV out for inrush voltage : AUOT TV ON
ASSIGNMENT
OPERATION:HIGH, BUS STOP(STOP:LOW)
AV MODE:HIGH(3.3V)
5.5-6.5Mhz : HIGH
AV MODE : HIGH(3.3V)
NTSC : LOW L : LOW
Alignment and Adjustments
L' ; HIGH
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