-7-
CPU Port Functions
Pin No.
Function Name
Function
IN/OUT
1
RC IN
RC signal input
IN
2
RESET
Reset input
IN
3
50/60
50/60Hz output (50Hz=H)
OUT
4
H-BLK
H-Blank
OUT
5
V-BLK
V-Blank
OUT
6
AV SW2
Option SW2
OUT
7
AV SW1
Option SW1
OUT
8
KEY IN
Key switch signal input
IN
9
H-P
Headphone mute (not used)
OUT
10
RELAY
To operate degauss circuit
OUT
11
PROTECT
Power failure detect
IN
12
HP-mode
Headphone mute
OUT
13
BBE
BBE ON/OFF
OUT
14
W-P
White enable
OUT
15
B-OUT
Blue output
OUT
16
G-OUT
Green output
OUT
17
R-OUT
Red output
OUT
18
FB-OUT
Fast blanking output
OUT
19
SDA
SDA
IN/OUT
20
SCL
SCL
OUT
21
VDD
VDD
--
22
JDTO
Not used
--
23
N.C.
Not used
--
24
Vpp
Not used
--
25
AVDD3
Analog VDD of PLL
--
26
TEST0
Test pin
--
27
MCFM
Test pin
--
28
JTCK
Test pin
--
29
TXCF
Analog pin for the
--
Teletext slicerline PLL
30
CVBSO
Not used
--
31
AVDD2
Analog power supplies
--
32
JTMS
Not used
--
33
CVBS2
Video input (H.F)
IN
34
CVBS1
Video input (L.F)
IN
35
AGND
Analog circuit ground
--
36
GND
Digital circuit ground
--
37
JTRSTO
Test pin
--
38
PXFM
Analog pin for the Display
--
Pixel Frequency Multiplier
39
AVDD
Analog power supplies
--
40
H-SYNC
Horizontal Sync input
IN
41
V-SYNC
Vertical Sync input
IN
42
ACK
Answer for status
OUT
43
STATUS
Request for Bus open
IN
44
IGNOA
RGB on/off switch
OUT
45
AMP-MUTE
Sound mute on/off switch
OUT
46
L/L’
L/L’ switch
OUT
Pin No.
Function Name
Function
IN/OUT
47
LED2
Brightness control of LED
OUT
48
S-VIDEO SW
S-video switch
OUT
49
H-Phase
H-Phase (not used)
OUT
50
OSC OUT
Oscillator (output)
OUT
51
OSC IN
Oscillator (input)
IN
52
RF AGC
RF Auto gain control
IN
53
PITTARI
PITTARI switch
OUT
54
POWER
TV power on/off switch
OUT
55
8PIN (SC2)
AV input detect
IN
56
8PIN (SC1)
AV input detect
IN
