Read Sharp DV-560H (serv.man2) Service Manual online
DV-560H
12-11. IC2002, IC2003 AMP
Bias
Clamp
1
8
V
IN
1
V
IN
2
2.07K
Ω
2.2K
Ω
6.2dB
Amp
75
Ω
Driver
2.07K
Ω
2.2K
Ω
6.2dB
Amp
75
Ω
Driver
7
V
+
5
6
4
3
NC
V
OUT
1
V
OUT
2
V
SAG
1
750
Ω
2
GND
SAG correction terminal
12-12. IC402 IX1474GE DEM/ECC (DVD)
Pin No. Terminal name
I/O
Operation function
Remarks
1
DPCK1
I
Signal processing reference clock input.
0.5-3.3Vp-p Feedback
resistor built in.
2
DVDD3
–
Digital power. (3.3V)
For logic cell
3
SVCK1
I
Servo reference clock input. (Oscillation circuit input terminal) 3.3V-I/F Feedback
4
SVCK0
O
Servo reference clock output. (Oscillation circuit input terminal)
resistor built in.
5
DVSS
–
Digital power. (0V)
For logic cell
6
DVDD2
–
Digital power. (3.3V)
For logic cell
7
N.C.
–
User use prohibited.
Open
8
HDWT
I
MPU write signal.
TTL level
9
HDRD
I
MPU read signal.
TTL level
10
HCEN
I
MPU chip selection.
TTL level
11
HD0
I/O
MPU data bus.
TTL level
12
HD1
I/O
MPU data bus.
TTL level
13
HD2
I/O
MPU data bus.
TTL level
14
HD3
I/O
MPU data bus.
TTL level
15
HD4
I/O
MPU data bus.
TTL level
16
HD5
I/O
MPU data bus.
TTL level
17
HD6
I/O
MPU data bus.
TTL level
18
HD7
I/O
MPU data bus.
TTL level
19
DVSS
–
Digital power. (0V)
For I/O cell
20
DVDD5
–
Digital power. (5V)
For I/O cell
21
HINT
O
MPU interruption signal. (Occurrence of interruption = “L”)
OPEN DRAIN
22
HA0
I
MPU address bus.
TTL level
23
HA1
I
MPU address bus.
TTL level
24
PLCK
I/O
Read channel clock input/output terminal.
12-20
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