Sharp CD-BK2100V Service Manual page 48

CD-BK2100V
IC2 VHiLC78636E-1: Servo/Signal Control (LC78636E) (1/2)
Terminal Name Input/Output Setting in Reset
Pin No.
1 PDO1
2 PDO2
3 VVSS
4 PCKIST
5 VVDD
6 FR
7 HFL
8 SLCIST
9 SLCO
10 EFMIN
11* JITTV
12 JITTC
13 BH
14 PH(RFENV)
15 FE
16 TE
17 VREF
18 ADAVDD
19 ADAVSS
20* PHREF
21* BHREF
22 TBLO
23 TDO
24 FDO
25 SPDO
26 SLDO
27* FG
28 LASER
29 CONT1
30 CONT2
31 CONT3
32 CONT4
33 CONT5
34* PCK
35 C2F
36 VDD
37* DOUT
38* FSX
39* EFLG
40 TEST
41 EMPH
42* MUTEL
43* MUTER
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Output –
Output –
– –
AI –
– –
AI –
Input –
AI –
Output –
Input –
Output Unfixed
Output –
Input –
Input –
Input –
Input –
Input –
– –
– –
Output (1/2VDD)
Output (1/2VDD)
Output (1/2VDD)
Output (1/2VDD)
Output (1/2VDD)
Output (1/2VDD)
Output (1/2VDD)
Input –
Output L
In/Output Input mode
In/Output Input mode
In/Output Input mode
In/Output Input mode
In/Output Input mode
Output H
Output H
– –
Output L
Output L
Output L
Input –
In/Output Input mode
Output H
Output H
For PULL Phase-comparison output terminal for built-in VOC control.
Phase-comparison output terminal for built-in VOC control.
Rough servo : OFF, phase servo : ON.
Ground terminal for built-in VCO.
Resistor terminal for setting the PDO output current.
Power terminal for built-in VCO.
Resistor terminal for setting the VCO frequency range.
Mirror detection signal input terminal.
For slice level control Resistance connection terminal for current adjustment of
SLCO output.
Control output.
EFM signal input terminal.
Jitter detection/monitor terminal.
Jitter detection/adjustment terminal.
BH signal input terminal. A/D input.
PH signal or RFENV signal input terminal. A/D input.
FE signal input terminal. A/D input.
TE signal input terminal. A/D input.
VREF signal input terminal. A/D input.
AD for servo, D/A power terminal.
AD for servo, D/A ground terminal.
PH reference output terminal. D/A output.
BH reference output terminal. D/A output.
Output terminal for tracking balance. D/A output.
Output terminal for tracking control. D/A output.
Output terminal for focus control. D/A output.
Output terminal for spindle control. D/A output.
Output terminal for sled control. D/A output.
FG signal input terminal. (When not used,connect to 0V)
LASER ON/OFF control terminal.
General purpose input/output terminal 1.
General purpose input/output terminal 2.
General purpose input/output terminal 3.
General purpose input/output terminal 4.
General purpose input/output terminal 5.
Clock monitor terminal for EFM data replay. 4.3218MHz as phase clock.
C2 flag output terminal.
Power terminal of digital system.
Output terminal of digital OUT. (EIAJ format)
Output terminal of synchronous signal of 7.35kHz divided from quartz oscillation.
C1,C2 correct monitor terminal.
Input terminal for test. Surely connected to 0V.
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.
Mute output terminal for L channel.
Mute output terminal for R channel.
– 48 –
Function
Controlled with serial data command
from microcomputer. When not used,
set it as the input terminal and
open it by connecting to 0V, or set it
as the output terminal and open it.