Read Sharp CD-ES222E (serv.man4) Service Manual online
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CD-ES222H/ES222E
FUNCTION TABLE OF IC
IC401 VHiLC78646E-1: Servo/Signal Control (LC78646E) (1/2)
1
SLCO
Output
—
Control output.
2
SLCIST
Input
—
Resistor connection terminal for SLCO output current setting.
3
EFMIN
Input
—
RF signal input terminal.
4
RF
Output
—
RF signal monitor terminal.
5
RFVDD
Input
—
RF power terminal.
6
RFVSS
—
—
RF earth terminal. To be connected to 0 V.
7
FIN1
Input
—
A+C signal input terminal.
8
FIN2
Input
—
B+D signal input terminal.
9
TIN1
Input
—
E signal input terminal.
10
TIN2
Input
—
F signal input terminal.
11
VREF
Output
RFVDD/2
VREF voltage output terminal.
12
REF1
Input
—
Reference supply setting terminal.
13*
FE
Output
ZHI
FE signal monitor terminal.
14
TEC
Output
—
LPF capacitor connection terminal for TE signal.
15
TE
Output
ZHI
TE signal monitor terminal.
16*
RFMON
Output
ZHI
RF internal signal monitor terminal.
17
JITTC
—
—
Capacitor connection terminal for jitter detection.
18
ADAVDD
Input
—
Power terminal for servo A/D, D/A.
19
ADAVSS
—
—
Earth terminal for serve A/D, D/A. To be connected to 0 V.
20
TDO
Output
ADAVDD/2
Output terminal for tracking control. D/A output.
21
FDO
Output
ADAVDD/2
Output terminal for focus control. D/A output.
22
SPDO
Output
ADAVDD/2
Output terminal for spindle control. D/A output.
23
SLDO
Output
ADAVDD/2
Output terminal for sled control. D/A output.
24*
GPDAC
Output
ADAVDD/2
Servo D/A general-purpose output terminal.
25
CONT4
Input/Output
Input Mode
General-purpose I/O terminal 4.
26
CONT5
Input/Output
Input Mode
General-purpose I/O terminal 5.
27*
SBCK/CONT6
Input/Output
Input Mode
General-purpose I/O terminal 6 or
Subcode reading clock input terminal.
Subcode reading clock input terminal.
28
SBCK/FG
Input
—
Subcode reading clock input terminal/FG signal input terminal/external
emphasis setting terminal. Terminal functions are set by commands. When
not used, connect to 0 V.
emphasis setting terminal. Terminal functions are set by commands. When
not used, connect to 0 V.
29*
DEFECT
Output
L
Defect terminal.
30*
V/*P
Output
H
Auto switching monitor output terminal for rough servo phase control. “H”:
rough servo, “L”: phase servo.
rough servo, “L”: phase servo.
31*
FSEQ
Output
L
Sync signal detection output terminal.
The status changes to “H” when the sync signal detected in EFM and the
sync signal of internal generation are identified.
The status changes to “H” when the sync signal detected in EFM and the
sync signal of internal generation are identified.
32*
MONI1
Output
L
Internal signal monitor terminal 1.
33*
MONI2
Output
L
Internal signal monitor terminal 2.
34*
MONI3
Output
L
Internal signal monitor terminal 3.
35*
MONI4
Output
L
Internal signal monitor terminal 4.
36*
MONI5
Output
L
Internal signal monitor terminal 5.
37
VSS
—
—
Digital system earth terminal. To be connected to 0 V.
38
VDD
Input
—
Digital system power terminal.
39*
DOUT
Output
L
Digital OUT output terminal. (EIAJ format)
40
TEST
Input
L
Input terminal for test. To be connected to 0 V.
41
LVDD
Input
—
Power supply for Left channel.
42
LCHO
Output
LVDD/2
Left channel output.
43
LVSS
—
—
GND for Left channel. Must be connected to 0 V.
Pin No.
Function
Terminal Name Input/Output Setting in Reset
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Left channel
D/A converter
For slice level
control.
Controlled by commands from the
microcomputer. When not used, set
them as input terminals and connect
to 0 V, or set them as output
terminals and leave open.
microcomputer. When not used, set
them as input terminals and connect
to 0 V, or set them as output
terminals and leave open.
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