
DV-SP302
IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
IC2 : ES6603 DVD SERVO F/E-(2)
Name
Pin Numbers
I/O
Definition
DVDRFP,
DVDRFN
1, 2
I
Differential RF signal attenuator inputs.
A2, B2, C2, D2
3:6
I
AC coupled photo detector interface inputs for the differential phase detector (DPD)
from the main beam photo matrix.
CP, CN
7, 8
—
Differential phase tracking low-pass filter pins. Connect CP to CN via capacitors.
D, C, B, A
9:12
I
Photo detector interface inputs from the main beam photo matrix.
CD_D, CD_C,
CD_B, CD_A
13:16
I
CD photo detector interface inputs from the main beam photo matrix.
CD_F, CD_E
17, 18
I
CD photo detector interface inputs from the CD side beam photo detector; used for
CD tracking detection.
VPB
19
P
Servo block power supply.
VC
20
O
Reference voltage out (VPB/2). Output impedance is less than 50
DVDLD
21
O
DVD APC output; controls laser power for DVD.
CDLD
22
O
CD APC output; controls laser power for CD.
DVDPD
23
I
DVD APC input.
CDPD
24
I
CD APC input.
VNB
25
G
Servo block ground.
LDON
26
I
APC On/Off control. A high level activates LD output. (open is low)
MIRR
27
O
Mirror detect output.
MP, MB
28, 29
I
Mirror top and bottom hold pins.Connected to VPB pin 19 via capacitors.
MLPF
30
I
Mirror low-pass filter pins. Connected to VPB pin 19 via a capacitor.
MIN
31
I
RF input signal for mirror. AC coupled inputs for the mirror detection circuit from
MEVO pin 32.
MEVO
32
O
RFDC bottom envelope out. Pull-In or bottom clamped RF envelope signal output
for mirror detection.
LINK
33
I,O
Linking Signal In/Mirror Monitor Out. In the linking area, the mirror and tracking
error outputs are disabled when this pin goes high. When the monitor output signal
is selected by the Control H register, mirror-related signals can be observed.
DFT
34
O
Defect output. When the Pull-In signal level is below the detection level, or when
the RF signal level is below the detection level, the DFT output goes high. The
defect output is selected by the serial port.
TPH
35
I
Pull-In top hold. Connected to VPB pin 19 via a capacitor.
V125
36
O
1.25V servo block reference voltage output.
V25
37
P
2.5V servo output reference power supply.
PI
38
O
Pull-In signal out. The summing signal output of A, B, C, D, or CD_A, CD_B, CD_C,
or CD_D. Reference to V25/3.
TE
39
O
Tracking error output reference to V125 pin 36.
FE
40
O
Focusing error output reference to V125 pin 36.
Содержание DV-SP302
Страница 8: ...DV SP302 BLOCK DIAGRAM FRONT DISPLAY SECTION DV SP302...
Страница 9: ...BLOCK DIAGRAM OVERALL...
Страница 10: ...DV SP302...
Страница 11: ...DV SP302 BLOCK DIAGRAM OVERALL...
Страница 12: ...SCHEMATIC DIAGRAM U20 DVD MAIN CIRCUIT BOARD 2 2 A 1 2 3 4 5 B C D...
Страница 13: ...DV SP302 E F G H From Power supply unit To Output board...
Страница 14: ...SCHEMATIC DIAGRAM U20 DVD MAIN CIRCUIT PC BOARD 2 2 A 1 2 3 4 5 B C D From Front board...
Страница 23: ...DV SP302 PRINTED CIRCUIT BOARD VIEW 1 U20 DVD MAIN BOARD 1 Top view...
Страница 24: ...DV SP302 PRINTED CIRCUIT BOARD VIEW 2 U20 DVD MAIN BOARD 2 Bottom view...
Страница 26: ...DV SP302 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 5 U21 OUTPUT TERMINAL PC BOARD Soldering side view...
Страница 27: ...DV SP302 IC BLOCK DIAGRAM TERMINAL DESCRIPTION IC6 BA5954 MOTOR DROVER...
Страница 44: ...PIN CONNECTIONS PIN DESCRIPTION DV SP302 IC BLOCK DIAGRAM TERMINAL DESCRIPTION IC81 M74HCU04 INVERTER IC...
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