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2.4
TECHNICAL INFORMATION
2.4.1 MAIN MICRO COMPUTER (CPU) FUNCTION (MN102H75K)
Pin No.
Pin name
I/O
1
ATSC_RX
O
2
/ VSYNC
I
3
LB_PRO
I
4
NC
-
5
/RST
I
6
NC
O
7
/TEST
I
8
OSD_YS
O
9
SDA4
I/O I
10
SYNC_SEL
I
11
A_MU
O
12
/HSYNC
I
13
M MUTE
O
14
OSDXI
-
15
OSDXO
-
16
SDA2
I/O I
17
AC IN
I
18
SCL2
O
19
NC
-
20
VCOI
I
21
PDO
O
22
/IP_RESET
O
23
OSD_YM
O
24
OSD_B
O
25
POWER_LED
O
26
OSD_G
O
27
OSD_R
O
28
VREF
I
29
IP_ERR
I
30
IREF
I
31
COMP
I
32
AVDD
I
33
CLL
I
34
VREFLS
I
35
SUB_CCD
I
36
NC
-
37
VSS
-
38
MAIN_CCD
I
39
VREFHS
I
40
CLH
I
41
VDD
I
42
SCL4
O
43
NC
O
Function
ATSC serial communication
V.sync for OSD
Low B protection detection [Error : H]
--------
Main CPU reset [Reset:L]
--------
+3.3V
OSD Ys (blanking)
2
C bus (data) for JCC5055
Sync select [ATSC : L]
Audio muting [Muting:H]
H sync for OSD
Audio muting for MONITOR OUT
[Muting:L]
Oscillation for OSD
Oscillation for OSD
2
C bus (data) for MTS
AC for time count
2
I
C bus (data) for MTS
--------
LPF
LPF
Reset for DIST [Reset:L]
OSD Ym (transparence)
OSD blue
Lighting for POWER LED
[HIGH / ON:H]
OSD green out
OSD red out
Reference voltage for OSD
AMDP program load error detection
[Error : L]
Reference current for OSD
Phase adjust for OSD
+3.3V
Clamp low level for SUB CCD
Reference voltage for SUB CCD
Video for sub closed caption decoder
--------
GND
Video for main closed caption
decoder
Reference voltage for MAIN CCD
Clamp high level for MAIN CCD
+3.3V
2
I
C bus (data) for JCC5055
--------
Pin No.
Pin name
I/O
44
LED_ONTIMER
O
45
CONVER_RXD
O
46
CONVER_TXD
I
47
SBT1
I
48
NC
O
49
ATSC_RST
O
50
NC
O
51
ATSC POW
O
52
NC
O
53
NC
O
54
DC_COTL
O
55
NC
O
56
NC
O
57
REC_LED
O
58
/LOB_POW
O
59
/COMPLINK
I
60
/POWERGOOD
I
61
/MECA_ON
I
62
/MAIN_POW
O
63
NC
-
64
/B1 POW
O
65
AFC1
I
66
X-RAY
I
67
NC
-
68
KEY2 (Key scan)
I
69
KEY1
I
70
SCL1
O
71
SDA1
I/O I
72
REMO
I
73
NC
O
74
VSS
I
75
OSC2
O
76
OSC1
I
77
VDD
I
78
SCL0
O
79
VOUTENB
O
80
SDA0
I/O I
81
NC
O
82
ATSC_TX
I
83
NC
-
84
P_MU
O
Function
Lighting for on temer LED
[ON TIMER ON:H]
Convergence control
Convergence control
Use for on board writing [Setting : H]
--------
Reset for ATSC tuner [Reset : L]
--------
ATSC power control [ON : H]
--------
--------
Black level DC reproduce control
--------
--------
ATSC-REC reseration
(Lighting for program LED(Red)
[REC. ON : H]
Low-B power control [Power on:L]
AV COMPULINK III control
Power condition check [ON : H]
Machine SW interrupt [Pushing:L]
Main power control [Power on :L]
--------
B1 power control [Power on:L]
Main AFT control [No AFT : H]
X-ray protection detection
[Protection : 2.0V]
--------
Front key scan 2 (CH+, VOL+/-)
[No input : H]
Front key scan 1 (CH-, MENU)
[No input : H]
2
I
C bUS (clock) for EEP-ROM
2
C bus (data) for EEP-ROM
Remote control
--------
GND
4MHz oscillation for system clock
4MHz oscillation for system clock
+3.3V
2
I
C bus (clock) for general
ATSC video output signal control
[Out : H / Non out : L]
2
C bus (data) for general
--------
ATSC serial communication
--------
Picture muting [Muting:H]
(No.YA173)1-7
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