Iiyama Vision Master Pro 451, Service Manual

Page: 23 / 74

Pin
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Name
GND
XIN
XOUT
TEST
VDD
P46
P47
RESET
INT5/STOP/P20
PWM0/P00
PWM1/P01
PWM2/P02
PWM3/P03
PWM4/P04
PWM5/P05
PWM6/P06
PWM7/P07
AIN00/P10
AIN01/P11
AIN02/P12
VREF
- 18 -
Function
GND
12MHz X'TAL
12MHz X'TAL
GND
5V Vcc
Cushion-S switching signal 1
Cushion-S switching signal 2
Reset
Cushion-S switching signal 3
PWM-Landing BL
PWM-Landing TL
PWM-Landing BR
PWM-Landing TR
N.C.
Cushion-S switching signal 4
Cushion-S switching signal 5
Cushion-S switching signal 6
A/D Magnetism X
A/D Magnetism X
A/D funnel temperature
5V Vcc
Main microprocessor specifications
Name
P36/VSYNC1
P35/HSYNC1
P34/VSYNC0
P33/HSYNC0
P32/CLAMP0
P31/HOHALF
P30/HIHALF
P45/SDA3
P44/SCL3
P43/SDA2
P42/SCL2
P41/SDA1
P40/SCL1
P57/SO1
P56/SI1
P55/SCK1
P54/DVO
P53/TI1/T01
P52/TI0/T00
P51/INT1
P50/INT0
Function
V-SYNC signal input
H-SYNC / COMP signal input
V-SYNC signal out
H-SYNC signal out
Video clamper
N.C.
HM903DT and A902MT-v switch
Degauss control signal output
H-LIN-1 switching signal output
E 2 PROM SDA
E
2
PROM SCL
UPC1888/PRF/OSD/DA SDA
UPC1888/PRE/OSD/DA SCL
Sub microprocessor DATA-OUT
Sub microprocessor DATA-IN
Sub microprocessor CLOCK
H-DRIVE switching signal output
H-LIN-2 switching signal output
Diagnostic mode
Automatic adjustment data output
Automatic adjustment data input
Pin
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Name
VREF
R40(AIN0)
R41(AIN1)
R42(AIN2)
R43(AIN3)
R71(WT0)
R80(INT2)
R81(T2)
R82(INT1)
P10
P11
P12
P13
Vss
Function
5V Vcc
Front Menu key signal (0/2.5V)
Front four key signal (0/2/3/4V)
Surrounding temperature detection
N.C.
Volume control 1
N.C.
PS1 (main power off signal)
Signal select
Volume control 2
Volume control 3
Volume control 4
LED signal out
GND
Sub microprocessor specifications
Name
VDD
K03
K02
K01
K00
HOLD
HOLD(KE0)
RESET
XOUT
XIN
R92(SCK)
R91(SO)
R90(SI)
P20
Function
5V Vcc
GND
GND
GND
GND
GND
GND
Reset
4MHz CLOCK
4MHz CLOCK
Main microprocessor CLOCK
Main microprocessor DATA-IN
Main microprocessor DATA-OUT
PS2 (heater off)