Read Sharp DV-720H (serv.man19) Service Manual online
DV-720S/DV-720S(K)
DV-720H
DV-720H
18
10-2. IC302 IX1517GE
RF PROCESSOR
Pin No. Terminal name
I/O
Operation function
Terminal DC Voltage(TYP.)
Remarks
1
GND
–
GND terminal.
–
2
P2TP
I
TE+input (CD)
VrA
3
P2TN
I
TE–input (CD)
VrA
4
LDO2
O
Drive ouput
–
5
MDI2
I
Monitor input
–
6
VrA
O
Analog VREF
2.1[V]
7
VrD
O
Digital VREF
–
Vdd 1/2
8
Vdd
I
Power terminal
4.2V (3.3V)
9
DPAC
–
DPD AC combination capacity 1
–
10
DPBD
–
DPD AC combination capacity 2
–
11
DPD1
–
DPD integral capacity 1
–
12
DPD2
–
DPD integral capacity 2
–
13
SCB
I
Control line (Bit clock)
2.2[V]
14
SCL
I
Control line (Latch signal)
2.2[V]
15
SCD
I
Control line (Sirial Data)
2.2[V]
16
VRCK
I
Reference clock input
2.3[V]
When frequency is increased, the
filters excepting the servo LPF are
shifted to high frequency side.
filters excepting the servo LPF are
shifted to high frequency side.
17
VCKF
–
Capacity for time constant adjustment
–
18
VccP
–
Power terminal
–
19
LVL
O
Servo addition output
Vrd x (1/2)
20
TEO
O
TE output
VrD
21
FEO
O
FE output
VrD
22
DFTN
I
DPD difect
–
Low DPD output: Mute
23
VccS
–
Power terminal (servo)
–
24
RPZ
O
RF ripple center voltage
VrD
25
RPO
O
RF ripple output
VrD
26
RPB
O
RF ripple bottom
–
27
RPP
O
RF ripple peak
–
28
RFO
O
Equalizing RF output
2.3[V]
29
NC
–
NC terminal
–
To be connected to GND
30
NC
–
NC terminal
–
To be connected to GND
31
VccR
–
Power terminal (RF)
–
32
DPDB
I
Pit depth adjustment
VrD
When D PDB is raised, the A/B
side delay increases.
side delay increases.
33
TEB
I
TE balance
VrD
When TEB is raised, the TP side
gain increases and the A+C side
delay increases.
gain increases and the A+C side
delay increases.
34
FEB
I
FE balance
VrD
When FEB is raised, the A+C (FP)
side gain increases.
side gain increases.
35
PSC
I
VRCK frequency division ON/OFF
–
High: Frequency division OFF
36
Vcc2
–
Power terminal
–
37
NC
–
NC terminal
VrD
To be connected to VrD, or to GND
through C
through C
38
EQD
I
Group delay correction
VrD
When EQD is raised, the group
delay increases at the right side.
delay increases at the right side.
39
GND2
–
GND terminal.
–
40
RFDC
–
DC feedback capacity
–
41
RFA
O
RF total addition output
2.2[V]
42
EQB
I
Boost adjustment
VrD
When EQB is raised, the boost increases.
43
EQF
I
Frequency adjustment
VrD
When EQF is raised, shift to the
high frequency side occurs.
high frequency side occurs.
44
MDI1
I
Monitor input
–
45
LDO1
O
Drive output
–
46
P1TN
I
TE–input (DVD)
VrA
47
P1TP
I
TE+input (DVD)
VrA
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