JVC KD-S721R, Service Manual

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1-23
KD-S723R/KD-S721R
26
27
28
29
30
31
32
33
34
35
36
37
38
39
HSSW
ZDET
PDO
TMAXS
TMAX
LPFN
LPFO
PVREF
VCOREF
VCOF
AVSS
SLCO
RFI
AVDD
2/4 times speed at "VREF" voltage.
1 bit DA converter zero detect flag output terminal.
Phase difference signal output terminal of EFM
signal and PLCK signal.
TMAX detection result output terminal. Selected by
command bit (TMPS)
TMAX detection result output terminal. Selected by
command bit (TMPS)
LPF amplifier inverting terminal for PLL.
LPF amplifier output terminal for PLL.
PLL reference voltage supply terminal.
VCO center frequency reference level terminal. Normally,
keep at "PVREF" level.
VCO filter terminal.
Analog GND terminal.
Data slice level output terminal.
RF signal input terminal.
Analog power supply voltage terminal.
O
O
O
O
O
I
O
-
I
O
-
O
I
-
Pin No.
Symbol
I/O
Function Remarks
TC9462F(2/3)
DIFFERENCE RESULT TMAX OUTPUT
Longer than fixed freq. "P2VREF"
Shorter than fixed freq. "VSS"
Within the fixed freq. "Hiz"
2-state output
(PVREF,HiZ)
-
3-state output.
(P2VREF,PVREF,VSS)
3-state output.
(P2VREF,PVREF,VSS)
3-state output.
(P2VREF,HiZ,VSS)
Analog input.
Analog output.
-
-
Analog output.
-
Analog output.
Analog input.
(Zin:selected by command)
-
Analog input
(Zin : 50k )
Analog input.
Analog input.
Analog input.
Analog input.
Analog input.
Analog input.
Analog input
(Zin :10k )
Analog output.
(2VREF AVSS)
-
3-state PWM signal
output.
(2VREF,VREF,VSS)
(PWM carrier
=88.2kHz)
3-state output.
(2VREF,VREF,VSS)
-
-
-
-
-
-
With pull-up resistor.
With pull-up resistor.
With pull-up resistor.
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58~61
62
63
64~67
68
69
70
RFCT
RFZI
RFRP
FEI
SBAD
TSIN
TEI
TEZI
FOO
TRO
VREF
RFGC
TEBC
FMO
FVO
DMO
2VREF
SEL
FLGA~D
VDD
VSS
IO0~3
DMOUT
CKSE
DDACT
RFRP signal center level input terminal
RFRP zero cross input terminal
RF ripple signal input terminal
Focus error signal input terminal
Sub-beam adder signal input terminal
Test input terminal Normally, keep at "vref" level
Tracking error signal input terminal. Take in at tracking
servo ON.
Tracking error zero cross input terminal
Focus servo equalizer output terminal
Tracking servo equalizer output terminal
Analog reference voltage supply terminal
RF amplitude adjustment control signal output terminal
Tracking balance control signal output terminal
Feed equalizer output terminal
Speed error signal or feed search equalizer output
terminal
Disk equalizer output terminal
(PWM carrier=88.2kHz for
DSP, Synchronize to PXO)
Analog double reference voltage supply terminal
APC circuit ON/OFF indication signal output terminal
External flag output terminal for internal signal
Digital power supply voltage terminal
Digital GND terminal
General I/O terminal
This terminal control IO0~IO3 terminal
Normally, keep at open
DAC test mode terminal. Normally, keep at open
I
I
I
I
I
I
I
I
O
O
-
O
O
O
O
O
-
O
O
-
-
I/O
I
I
I
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