Read Sharp LC-M3700 (serv.man9) Service Manual online
39
LC-M3700
LC-M3710
LC-M3710
39-1
39-2
Ë
VHiPD64084+-1Q(ASSY:IC7001)
3-Dimensiona Y/C Separation LSI with a built-in 4M bit Memory
»
Block Diagram
»
Pin Function
Pin No
.
Pin Name
I/O
Pin Function
1,33,48,75
DGND
—
Digital part GND (common to I/O part grounding)
39,62,100
DVDD
—
Digital part 2.5V power supply
4-12,28-30,
TEST01-
Test terminal (OPEN or GND connection)
32,40-43,
TEST26
78-85,99
13
EXTALTF
O
Extended 4fsc and an alternat-flag output terminal
14-23
EXTDYCO0-
I/O
Extended digital input-and-output terminal
EXTDYCO9
24-25
DGNDRAM
—
DRAM part GND
26-27
DVDDRAM
—
DRAM part 2.5V power supply
31
DVDDIO
—
I/O part 3.3V power supply
34-35
AGND
—
OSC circuit part GND
36
XI
I
Standard clock input
37
XO
O
Standard clock reversal output
38
AVDD
—
OSC circuit part 2.5V power supply
44
RPLL
I
Test input terminal (GND connection)
45
SLA0
I
I2C-bus slave address selection input
46
SCL
I
I2C-bus clock input
47
SDA
I/O
I2C-bus clock output
49
AGND
—
I2C-bus data input-and-output terminal
50
AVDD
—
fsc DAC section 2.5V power supply
51
FSCO
O
fsc generator fsc output
52-53
AGND
—
8fsc PLL section grounding
54
FSCI
I
8fsc PLL fsc input
55
AVDD
—
8fsc PLL section 2.5V power supply
56
CKMD
I
CLK8 test mode selection (GND connection)
57
CLK8
I/O
CKMD = 0 : 8fSC clock output
CKMD = 1 : 8fsc clock input
58
RSTB
I
System reset input (active low)
59
ST0
O
Internal signal monitor output
60
ST1
O
Internal signal monitor output
61
NSTD
O
Non-standard detection monitor output
(L : A standard judging , H : Non-standard judging)
63-72
DYCO0-DYCO9
I/O
Digital input and output
73
ALTF
O
4fsc alternat-flag output
74
LINE
I
Compulsive line processing selection input
(L : It is usually Processing H. : Processing between compulsive lines)
76
KIL
I
External killer input
(L : It is usually Processing H. : Compulsive Y/C separation stop)
77
CSI
I
Composite sync. input (active low)
2
TESTIC1
I
T
he test terminal for IC sorting (GND connection)
3
TESTIC2
I
The test terminal for IC sorting (GND connection)
86
AVDD
—
Y-DAC and C-DAC part 2.5V power supply
87
CBPC
O
C-DAC phase compensation output
88
ACO
O
C-DAC analog C-signal output
89
AYO
O
C-DAC analog Y-signal output
90
CBPY
O
Y-DAC phase compensation output
91
AGND
—
Y-DAC and C-DAC part grounding
92
AGND
—
ADC section grounding
93
AYI
I
ADC analog composite signal input
94
VCLY
O
ADC clamp potential output
95
VRBY
O
ADC bottom standard voltage output
96
VRTY
O
ADC top standard voltage output
97
VCOMY
O
ADC standard voltage of the same phase
98
AVDD
—
ADC section 2.5V power supply
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