Denon S-81 Service Manual page 35

Pin No. Symbol I/O
O
11 SFSY
3-5I/F
O
12 SBSY
3-5I/F
13 I O0
I/O
3-5I/F
14 I O1
-
15 P V ˇ
DD3
O
16 PDO
AI/F
O
17 TMAX
AI/F
I
18 LPFN
AI/F
O
19 LPFO
AI/F
-
20 PV ˇ
REF
O
21 VCOF
AI/F
-
22 AV ˇ
SS3
O
23 SLCO
AI/F
I
24 RFI
AI/F
-
25 AV ˇ
DD3
I
26 RFCT
AI/F
I
27 RFZI
AI/F
I
28 RFRP
AI/F
I
29 FEI
AI/F
I
30 SBAD
AI/F
I
31 TE I
AI/F
I
32 TEZI
AI/F
O
33 FOO
AI/F
O
34 TRO
AI/F
-
35 V ˇ
REF
O
36 RFGC
AI/F
O
37 TEBC
AI/F
Function Description
Playback frame sync signal output pin.
Subcode block sync signal output pin. "H" level at S1 when
subcode sync is detected.
General-purpose input / output pins.
Input port at reset.
PLL-only 3.3 V power supply voltage pin.
EFM and PLCK phase difference signal output pin.
TMAX detection result output pin.
TMAX Detection Result
Longer than fixed period
Within fixed period
Shorter than fixed period
Inverted input pin for PLL LPF amp.
Output pin for PLL LPF amp.
PLL-only V pin.
REF
VCO filter pin.
Analog GND pin.
DAC output pin for data slice level generation.
RF signal input pin. Zin selectable by command.
Analog 3.3 V power supply voltage pin.
RFRP signal center level input pin.
RFRP signal zero-cross input pin.
RF ripple signal input pin.
Focus error signal input pin.
Sub-beam adder signal input pin.
Tracking error input pin. Inputs when tracking servo is on.
Tracking error signal zero-cross input pin.
Focus equalizer output pin.
Tracking equalizer output pin.
Analog reference power supply voltage pin.
RF amplitude adjustment control signal output pin.
Tracking balance control signal output pin.
Schmitt at input
4-state output
(PV
TMAX Output
3-state output
"PV "
DD3 (PV
"HiZ"
"AV "
SS3
Analog input
Analog output
Analog output
Analog output
Analog input
Analog input: Zin ı 33 k
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input: Zin ı 10 k
Analog output
(AV
3-state output
(PWM carrier ı 88.2 kHz)
(AV
35
S-81/S-81DAB
Remarks
-
ˇ
-
ˇ
-
ˇ
, HiZ, PV , AV )
DD3 REF SS3
, HiZ, AV )
DD3 SS3
-
ˇ
-
ˇ
-
ˇ
=
=
~AV )
SS3 DD3
-
ˇ
=
, V , AV )
DD3 REF SS3