Read Sharp SD-AT100 (serv.man6) Service Manual online
SD-AT100H
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FUNCTION TABLE OF IC
IC3701 VHiTC94A03F-1: Servo ECC (TC94A03F) (1/3)
1
ASLCN
Output
Data slice negative output.
2
ASLCO
Output
Analog data slice output. (at differential input, digital slice output enable)
3
DVSS
—
DAC ground.
4*
RO
Output
R-ch output signal.
5
DVDD
Input
DAC power supply.
6
DVR
Output
Amp reference signal output.
7*
LO
Output
L-ch output signal.
8
DVSS
—
DAC ground.
9
XVSS
—
Oscillator ground.
10
XI
Input
Crystal oscillation input.
11
XO
Output
Crystal oscillation output.
12
XVDD
Input
Oscillator power supply.
13-15(14*) TESM0-2
—
Test terminal.
16
VDD3
Input
3.3 V digital power supply.
17
VSS3
—
3.3 V digital ground.
18
VPFC
Output
Clock PLL system phase/frequency comparison output.
19
TEST0
Input
Test mode terminal.
20
VLPFI
Input
VCO system filter input for clock PLL.
21
VLPFO
Output
VCO system filter output for clock PLL.
22
VSS3
—
3.3 V digital ground.
23*-32*
MON0-9
Output
Test monitor.
33
VDD3
Input
3.3 V digital power supply.
34*,35*
N.C.
—
—
36
TEST1
Input
Test mode terminal.
37
FLGA
Input/Output
General-purpose I/O or flag monitor.
38*
FLGB
Input/Output
General-purpose I/O or flag monitor.
39
VSS3
—
3.3 V digital ground.
40
/RST
Input
Reset terminal.
41
/MA
Input
Microcomputer address enable signal.
42
/MRD
Input
Microcomputer data read signal.
43
/MWR
Input
Microcomputer data write signal.
44
/MCE
Input
Microcomputer chip enable signal.
45
/MINT
Output
Microcomputer interrupt signal.
46-53
MD0-7
Input/Output
Microcomputer data bus.
54
VDD5
Input
5 V power supply.
55*,56*
N.C.
—
—
57*
SMCK
Output
22 M system clock output.
58*
VMCK
Output
Clock output for data output (signal processing) system.
59
VDD3
Input
3.3 V digital power supply.
60
PD0
Output
DVD/CD data output.
61
VSS5
—
5 V ground.
62-65
PD1-4
Output
DVD/CD data output.
66
VSS3
—
3.3 V digital ground.
67-70
PD5-PD8
Output
DVD/CD data output.
71
/PSYC
Output
DVD data sector synchronous signal.
72
/PDRQ
Output
DVD data transfer block.
73
PDCK
Output
DVD data transfer clock.
74
VDD5
Input
5 V power supply.
75
TESM3
—
Test terminal.
76
DIGI
Input
1 bit DAC digital IN input.
Pin No.
Function
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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