Daewoo 14A5 Service Manual page 12

(4) Pin Description
* A : DW5255M*/DW5255RM*, B : DW370M*
Pin Name
A* B* A*
1 1 P3.1
2 2 P0.7/Open Drain
3 3 P0.6/Open Drain
4 4 P0.5/Open Drain
5 5 P0.4/Open Drain
6 6 P0.3/Open Drain
7 7 P0.2/Open Drain
8 8 P0.1/Open Drain
9 9 P0.0/Open Drain
10 10 VSS
11 11 VCC
12 12 XTAL1
13 13 XTAL2
14 14 P4.0/ALE
15 15 RESET
16 16 P1.7/14BIT PWM
17 17 P1.6/14BIT PWM
18 18 P1.5/8BIT PWM
19 19 P1.4/8BIT PWM
20 20 P1.3/8BIT PWM
21 21 P1.2/8BIT PWM
22 P1.1/8BIT PWM
23 P1.0/8BIT PWM
24 VSSA
25 FIL3
B
T1IC1/CR
A0
A1
A2
A3
A4
A5
PWM1-0/ Open Drain
PWM1-1/ Open Drain
OSCIN
OSCOUT
PWM1-2/Open Drain
RESET/Open Drain
PWM2-0
PWM2-1
PWM1-3/Open Drain
PWM1-4/Open Drain
PWM1-5/Open Drain
TEST
12
Symbol Description
SYS SECAM-L' OUT for switching SAW filter
L9461
- SECAM-L' : H
- SECAM- L : L
BUSSTOP I2C BUS STOP IN for Computer
controlled alignment in Factory
( Active Low )
SDA Serial data IN/OUT for I2C
SCL Serial clock IN/OUT for I2C
OPTION #5 #6 Teletext
OPTION H H West Teletext
L H East Teletext
H L Turkish Teletext
OPTION Auto search priority
H : L/L' priority
L : B/G priority
OPTION Not Used (Reserved)
LED LED drive OUT
- Stand-by mode : H
- Operating mode : L
VSS ground
VCC Power Supply
OSCIN Input to inverting osc. Amplifier
OSCOUT Output of inverting osc. Amplifier
Not Used
RST RESET IN (ACTIVE LOW)
VT TUNING VOLTAGE OUT
SW TV/AV &AM/FM SW.OUT for
STV8225
F/SW F/SW IDENT IN for stopping OSD
display in RGB mode
- H : TV /AV mode
- L : RGB mode
Not Used
MUTE AUDIO MUTE OUT
GND (Must be tied 0V for DW370M*)
Not Used
Not Used
VSSA Analog GND for Slicer
FIL3 PLL Loop Filter I/O for Phase Shifting
( IR reception : pulse )