Read Sharp CD-BA2010 (serv.man8) Service Manual online
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CD-BA2010H
IC2 VHiLC78641E-1: Servo/Signal Control (LC78641E) (1/2)
1
PDO1
Output
–
For PULL
Phase-comparison output terminal for built-in VOC control.
2
PDO2
Output
–
Phase-comparison output terminal for built-in VOC control.
Rough servo : OFF, phase servo : ON.
Rough servo : OFF, phase servo : ON.
3
VVSS
–
–
Ground terminal for built-in VCO.
4
PCKIST
AI
–
Resistor terminal for setting the PDO output current.
5
VVDD
–
–
Power terminal for built-in VCO.
6
FR
AI
–
Resistor terminal for setting the VCO frequency range.
7
HFL
Input
–
Mirror detection signal input terminal.
8
SLCIST
AI
–
For slice level control
Resistance connection terminal for current adjustment of
SLCO output.
SLCO output.
9
SLCO
Output
–
Control output.
10
EFMIN
Input
–
EFM signal input terminal.
11*
JITTV
Output
Unfixed
Jitter detection/monitor terminal.
12
JITTC
Output
–
Jitter detection/adjustment terminal.
13
BH
Input
–
BH signal input terminal. A/D input.
14
PH(RFENV)
Input
–
PH signal or RFENV signal input terminal. A/D input.
15
FE
Input
–
FE signal input terminal. A/D input.
16
TE
Input
–
TE signal input terminal. A/D input.
17
VREF
Input
–
VREF signal input terminal. A/D input.
18
ADAVDD
–
–
AD for servo, D/A power terminal.
19
ADAVSS
–
–
AD for servo, D/A ground terminal.
20*
PHREF
Output
(1/2VDD)
PH reference output terminal. D/A output.
21*
BHREF
Output
(1/2VDD)
BH reference output terminal. D/A output.
22
TBLO
Output
(1/2VDD)
Output terminal for tracking balance. D/A output.
23
TDO
Output
(1/2VDD)
Output terminal for tracking control. D/A output.
24
FDO
Output
(1/2VDD)
Output terminal for focus control. D/A output.
25
SPDO
Output
(1/2VDD)
Output terminal for spindle control. D/A output.
26
SLDO
Output
(1/2VDD)
Output terminal for sled control. D/A output.
27*
FG
Input
–
FG signal input terminal. (When not used, connect to 0V)
28
LASER
Output
L
LASER ON/OFF control terminal.
29
CONT1
In/Output
Input mode
General purpose input/output terminal 1.
Controlled with serial data command
30
CONT2
In/Output
Input mode
General purpose input/output terminal 2.
from microcomputer. When not used,
31
CONT3
In/Output
Input mode
General purpose input/output terminal 3.
set it as the input terminal and
32
CONT4
In/Output
Input mode
General purpose input/output terminal 4.
open it by connecting to 0V, or set it
33
CONT5
In/Output
Input mode
General purpose input/output terminal 5.
as the output terminal and open it.
34*
PCK
Output
H
Clock monitor terminal for EFM data replay. 4.3218 MHz as phase clock.
35*
C2F
Output
H
C2 flag output terminal.
36
VDD
–
–
Power terminal of digital system.
37*
DOUT
Output
L
Output terminal of digital OUT. (EIAJ format)
38*
FSX
Output
L
Output terminal of synchronous signal of 7.35 kHz divided from quartz oscillation.
39*
EFLG
Output
L
C1,C2 correct monitor terminal.
40
TEST
Input
–
Input terminal for test. Surely connected to 0V.
41*
EMPH
In/Output
Input mode
Emphasis terminal. After resetting, it is configured as an input terminal. It can be controlled
from the outside. It is also becomes a emphasis monitor terminal under command control.
from the outside. It is also becomes a emphasis monitor terminal under command control.
42*
MUTEL
Output
H
Mute output terminal for L channel.
43*
MUTER
Output
H
Mute output terminal for R channel.
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.
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