Philips CD610 - System Architecture and Technical Glossary; Overall Functional Block Diagram; Circuit Descriptions and Terminology

3-3
BLOCK
DIAGRAM
AGC
-
Automatic
Gain
Control
Rose
-
Resistor
wobble
oscillator
B0-B3
-
Control
bits
for radial circuit
Rwob
-
Wobble
generator input
BEQ
-
Equalizer
reference
current input
RE1
-
Radial error
signal
1
(summation of
BGC
-
DC and
LF
gain control
reference
input amplified
currents D
3
and
D
4
Coscl
-
Capacitor
wobble
oscillator
RE2
-
Radial error
signal
2
(summation of
Cosc2
-
Capacitor
wobble
oscillator
amplified
currents D
1
and D
2
DEC
-
Decoupling
input of
inkruat bypass
RE
dig
-
Radial
error digital
DET
-
HF
detector voltage
input
RE lag
-
Radial error
signal for LAG
network
DIV4
-
Divide
by
4 input
Sc
-
Starting
up capacitor input
DODS
-
Drop out
detector
suppression
Si/RD
-
On/off
control for laser
supply and focus
DU4
-
Photodiode
currents
circuit.
Ready
signal,
Starting
up
FE
-
Focus
error signal
procedure
succesful.
FE
lag
-
Focus
error signal
for LAG
network
TL
-
Track
loss
output
signal
HF
-
HF output
for DEMOD
TTM-
-
Control
voltage for turntable
motor
HFD
-
HF detector output
for DEMOD
TTM+
-
Control
voltage
for
turntable
motor
HF-in
-
HF current
input
to
HF
amplifier
Vext-
-
Supply
connection
HF-out
-
HF
amplifier and
equalizer
voltage output
Vext+
-
Supply
connection
LM
-
Laser
monitor
diode
input
TCMP
-
Turntable
control motor
pulse
LO
-
Laser
amplifier current output
MC
-
Motor
control
signal
offset
IN
-
Offset control
input
offset
OUT
-
Offset
control output
PLLH
-
PLL
on
hold output
RADout
-
output
of
RE2-RE1 input
RE
-
Radial
error signal
(Amplified
RE
2
-RE
1
currents)
ATSB
-
Attenuation of Audio level in
Search
MUSB
-
Soft Mute signal
position (Cueing) PD/OC
-
Phase
detector
-
oscillator control
CD ROM
-
Digital
Data
information
on disc
signal
QCL
-
Q-channel
Clock
signal
Switch QDA
-
Q-channel
Data
signal
CEFM
-
Clock Eight-to-Fourteen Modulator QRA
-
Q-channel
Request
Aknowledge
CLAB
-
Clock signal
Decoder-A
to
Filter-B
SCAB
-
Subcode
clock Decoder-A
to
Filter-B
CLBD
-
Clock signal
Filter-B
to
DAC SDAB
-
Subcode data
Decoder-A to Filter-B
CREF
-
Reference
Current
SWAB/SSM
-
Subcode
Word/Start-stop
motor signal
CRI
-
Counter Reset Inhibit
WSAB
-
Word
select Decoder-A to
Filter-B
DAAB
-
Data
signal
Decoder-A
to
Filter-B
WSBD
-
Word
Select
Filter-B
to
DAC
DABD
-
Data
signal Filter-B
to
DAC XIN
-
Oscillator signal in Decoder-A
DEEM
-
Deemphasis
XSYS
-
Oscillator signal
out
Filter-B
DOBM
-
Digital
out
signal
EFAB
-
Error flag
Decoder-A
to
Filter-B
MUTE
-
Mute signal
CS
22
791