Read Sharp DV-760H (serv.man3) Service Manual online
DV-700S
DV-760S/H
DV-760S/H
11-15. IC707 IX1473GE
SERVO PROCCESSOR
Pin No.
Terminal name
I/O
Operation function
Remarks
1
VSS
–
Digital ground terminal.
2
BCK
O
Bit clock (1.4122MHz) output terminal.
3
AOUT
O
Audio data output terminal.
4
DOUT
O
Digital out output terminal.
5
MBOB
O
Buffer memory over signal output terminal. Over: “H”
6
IPF
O
Correction flag output terminal. When correction disable symbol
is given if AOUT output is C2 correction: “H”.
is given if AOUT output is C2 correction: “H”.
7
SBOK
O
Sub-code Q data CRCC judgment result output terminal.
Judgment result OK: “H”.
Judgment result OK: “H”.
8
CLCK
I/O
Sub-code P to W data read clock output/input terminal.
Selectable with command bit.
Selectable with command bit.
9
VDD
–
Digital + power terminal
10
VSS
–
Digital ground terminal
11
DATA
O
Sub code P-W data output terminal.
12
SFSY
O
Playback system frame sync signal output terminal.
13
SBSY
O
Subcode block sync output terminal.
When subcode sync is detected, S1 position: “H”.
When subcode sync is detected, S1 position: “H”.
14
SPCK
O
Processor status signal read clock (176.4 kHz) output terminal.
15
SPDA
O
Processor status signal output terminal.
16
COFS
O
Correction system frame clock (7.35 kHz) output terminal.
17
MONIT
O
LSI internal signal monitor terminal.
DSP internal flag and PLL system clock can be monitored with
microcomputer command.
DSP internal flag and PLL system clock can be monitored with
microcomputer command.
18
VDD
–
Digital + power terminal.
19
TESIO0
I
Test input/output terminal. Usually fixed to “L”.
20
P2VREF
–
PLL system 2VREF terminal.
21
SPDO
O
VCO center frequency shift terminal.
22
PDOS
O
EFM and PLCK signal phase error signal output terminal.
(To be used when x8 speed operation is used)
(To be used when x8 speed operation is used)
23
PDO
O
EFM and PLCK signal phase error signal output terminal.
24
XMAXS
O
TMAX detection result output terminal.
To be selected with command bit TMPS.
To be selected with command bit TMPS.
25
TMAX
O
26
LPFN
I
Reverse input terminal for low pass filter amplifier.
27
LPFO
O
Output terminal for low pass filter amplifier.
28
PVREF
–
PLL system VREF terminal.
29
VCOREF
I
VCO center frequency reference level terminal.
To be fixed usually to “PVREF”.
To be fixed usually to “PVREF”.
30
VCOF
O
Filter terminal for VCO.
31
AVSS
–
Analog system ground terminal.
32
SLCO
O
Data slice level generation DAC output terminal.
33
RFIN
I
RF signal input terminal.
34
AVDD
–
Analog system power terminal.
35
RFCT
I
RFRP signal center level input terminal.
36
RFZI
I
RFRP zero cross input terminal.
37
RFRP
I
RF ripple signal input terminal.
38
FEIN
I
Focus error signal input terminal.
39
SBAD
I
Sub-beam addition signal input terminal.
40
TSIN
I
Test input terminal. To be fixed usually to “Vref”
41
TEIN
I
Tracking error signal input terminal.
(Fetching when tracking servo is ON)
(Fetching when tracking servo is ON)
42
TEZI
I
Tracking error zero cross input terminal.
43
FOO
O
Focus equalizer output terminal.
TMAX detection result
TMAXoutput
Longer than specific period
“P2VREFF”
Shorter than specific period
“VSS”
Within specified period
“HiZ”
11-19
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