(No.YA243)1-5
2.4
TECHNICAL INFORMATION
2.4.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin
No.
Pin name I/O
Function
Pin
No.
Pin name
I/O
Function
1
MTS_ADJ
I
Not used
29 YC_GND
-
GND
2
AFT1
I
AFT voltage for tuner (Tuning frequency control)
30 V1_IN
I
Not used
3
KEY
I
Key scan for front control [No signal: H]
31 ABCL
I
Current for automatic beam (brightness)/contrast limit
4
uP_DVss
-
GND
32 MONITOR_OUT O Not used
5
Reset
I
CPU reset [Reset: L]
33 BLACK_DET
-
Black level detection filter
6
8MHz_OUT O CPU system clock: 8MHz oscillation
34 SVM_OUT
O Y signal for scan velocity scan modulation
7
8MHz_IN
I
CPU system clock: 8MHz oscillation
35 APL_FIL
-
Average picture level filter
8
TEST
-
GND
36 APC_FIL
-
Automatic phase control filter
9
uP_DVDD
I
5V
37 fsc_OUT
O Color sub carrier (3.58MHz) for 3-line digital comb filter [IC5201]
10 AGC_MUTE O AGC muting for tuner (when channel select) [Muting : H]
38 YC_Vcc
I
5V (for video process circuit)
11 uP_VVSS
-
GND
39 R_OUT
O R signal for CRT output
12 TV_HGND
-
GND
40 G_OUT
O G signal for CRT output
13 FBP_SCP
I
Flyback pulse (H. pulse)
41 B_OUT
O B signal for CRT output
14 HOUT
O H. drive (oscillation)
42 RGB_Vcc
I
9V (for RGB process circuit)
15 H_Vcc
I
9V (for H. oscillation start)
43 IK_IN
I
Not used
16 HAFC_1
-
H. AFC filter
44 TV_DGND
-
GND
17 Vsaw
-
V. saw filter
45 uP_AGND
-
GND
18 VOUT
O V. drive
46 uP_AVdd
-
5V
19 EW_OUT
O Parabola waveform (for sidepin correection)
47 MAIN_POWER O Power on/off switching control [Powen on: L]
20 X-RAY
I
X-ray detection (for protection) [Detection : H]
48 PANORAMA
I
Not used: Aspect size control [PANORAMA: L]
21 Ys
I
Not used
49 SDA0
I/O Data for Inter IC control bus (for various devices)
22 Cb_IN
I
Cb (external) signal
50 SCL0
O Clock for Inter IC control bus (for various devices)
23 Y_IN
I
Y (external) signal
51 SDA1
I/O Data for Inter IC control bus (for main memory)
24 Cr_IN
I
Cr (external) signal
52 A_MUTING
O Audio muting [Muting : H]
25 TV_DVcc
I
3.3V
53 SCL1
O Clock for Inter IC control bus (for main memory)
26 V3IN/CIN
I
Chroma signal (for YC separation output)
54 LED
O POWER / ON TIMER LED lndication [lighting : L]
27 EHT_IN
I
Not used
55 REMOCON
I
Remote control sensor input [No input : H]
28 V2_IN/Y_IN
I
Y signal (for YC separation output)
56 ASP_ABL
I
Not used
