2.
MCU
Monitor MCU Specification
Frequency Specification
H-freq. : 29.5K – 70KHz
V-freq.
: 43 – 160Hz
Judge polarity only when frequency is 31.5 KHz and 37.8 KHz
Support composite sync detection
System Architecture
1.
MCU – Weltrend WT6016, 16K bytes ROM size
2.
EEPROM – 24C04 series, 4K bit, with ID code for identify initialization.
3.
OSD – Myson MTV016N-12
Input
1. Sync input
– 2 pins for H-sync & V-sync frequency inverted input.
2. Key input
– 2 pins for A/D key input (SELECT. UP, DOWN and RECALL).
3. Burn-in ID input – 1 pins for Burn-in ID input.
4. Reset input
– low pulse for reset MCU
5. Crystal input – 2 pins using 8MHz crystal.
Output – MCU digital pin
1.Degauss – Active high pulse for 2.5 sec when in degauss. MCU will activate degauss while
power on.
2.CS output – 3 pins (CS2, CS1, CS0) for CS control
H-sync
CS2
CS1
CS0
H-sync
<
33.25KHz
0
0
0
33.25KHz
<
H-sync
<
36.50KHz
0
1
0
36.50KHz
<
H-sync
<
40.50KHz
0
1
1
40.50KHz
<
H-sync
<
45.10KHz
1
0
0
45.10KHz
<
H-sync
<
51.60KHz
1
0
1
51.60KHz
<
H-sync
<
55.10KHz
1
1
0
55.10KHz
<
H-sync
<
62.15KHz
1
1
0
62.15KHz
<
H-sync
1
1
1
Mode change
0
0
0
43
Содержание Diamond Scan 51
Страница 9: ...6 MultiSync MV521 Diamand Scan 51 ...
Страница 71: ...11 Monolithic triple 13 5nS CRT driver 68 ...
Страница 72: ...69 ...
Страница 73: ...70 ...
Страница 74: ...71 ...
Страница 103: ...95 SCHEMATIC DIAGRAMS 1 Video Board ...
Страница 104: ...96 2 Main Board ...