CPU can automatically determine the maximum channels to be stored according
to the capacity of external EEPROM connected.
EEPROM model
AT24C02
AT24C04
AT24C08
Channel max
55
140
255
3. Definitions of Local Buttons
3-1. Definitions of buttons (AD input port)
PORT
VOLTAGE RANGE
BUTTON
FUNCTION DESCRIPTION
AN4
0V~3/32VDD
OFF
No status when button pressed
KEY IN
4/32VDD~7/32VDD
AUTO
Full-auto search
8/32VDD~11/32VDD TV/AV
TV/AV
switch
12/32VDD~15/32VDD MENU
Menu
button
16/32VDD~19/32VDD VOL+
Volume
+
20/32VDD~23/32VDD VOL-
Volume
-
24/32VDD~27/32VDD POS+
Program
+
28/32VDD~VDD POS-
Program
-
note if a local button and a remote control button are pressed simultaneously, the
local button is prior to remote control button.
3-2. Definitions of user's remote control buttons
Button
English name
Chinese name
Function description
Remark
0 0
0
Channels selected directly by
figure button
9 9
9
10
Direct selection by double or
triple digit numbers
11 TV/AV TV/AV
TV/AV
switch
12 GAME
GAME control
13
14 MENU
Control menu switch
15 WOOF
Woofer switch control
16 VOL+
+ Volume
+
17 PROD
Factory mode
Factory use only
18 POWER
Power on/off
19 POS+
+ Program
+
20 VOL-
- Volume
-
21
JUMP
Analogue jump
(jump button in FACTORY mode)
22 MUTE
Mute
23 POS-
- Program
-
24 SLEEP
/
Sleep
25
PP /
Picture mode selection
26 RECALL
/
Program recall
27 DISPLAY
/
Display
28 PICTURE
/ Picture
menu
29 AUDIO
/ Audio
menu
30 CLOCK
/
Clock menu/jump to yellow fast
page
31 SYSTEM
/
System menu / jump to cyan fast
page