Emerson HKTV13 Service Manual page 31

Appendix
PIN Terminal
21 B
22 BL
23 P31
24 P32
25 P70/INT0
26 P71/INT1
27 P72/INT2
28 P73/INT3
29 P14/PWM1
30 P15/PWM2
31 P16/PWM3
32 P17
33 P00
34 P01
35 P02
36 P03
Port 00~03 : The Port characteristic is specified by the software and the use of pull-up resistors for each port is specified by the option SW.
Port 10~13 : The Port characteristic and the use of pull- up resistors for each port is specified by the software.
* The Port characteristic means I/O characteristic and Port description - CMOS or N-channel open drain needed pull-up resistors.
Teriminal I/O
Port 0 I
Port 1 I
Name Explanation
B
Blue output terminal of RGB image
Fast blanking control signal
BL
Switch TV image Signal and caption / OSD image signal
Output terminal
Audio Mute
Use only read data of LA76814/10
Use when does power off/on
Power On
Power off: Output Low(DC 0V)
Power on: Output High(DC 5V)
Bus Stop
No Use
Relay On/Off
Relay On/Off Terminal
A/V Detection
Detect port of Front A/V
Remocon In
Input of Remocon Signal
High: RF only mode
RF(H)/AV(L)
Low: RF/AV mode
Low (DC-0V) : On(Auto Tint)
AUTO TINT
High (DC-5V) : Off
PWM VOLUME Use only to control Sound of Stereo mode
High (DC-5V) : No Blue Back
BLUE BACK
Low (DC-0V) : Blue Back
Low (DC-0V) : Normal
PRISON
High (DC-5V) : Prison
Low (DC-0V) : Mono
MONO/STEREO
High (DC-5V) : Stereo
No Use
CAPTION
Low (DC-0V) : TV/Video
TV ONLY(H)
High (DC-5V) : TV Only
Pull- up resistor status at selection pull-up option.
Pull- up resistor OFF, ON after reset release.
Programmable pull- resistor OFF.
30
IC DESCRIPTION