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Philips Sylvania CD1473 Service Manual page 17

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B0-B3
-
Control bits for radial circuit
RE1
-
Radial error signal 1 (summation of
ATSB
-
Attenuation of Audio level in Search
MUSB
-
PRS03037
112/735
Soft Mute signal
DAC
-
Current output for track jumping
amplified currents D
3
and D
4
position (Cueing)
PD/OC
-
Phase detector - oscillator control
(Digital to Analogue Converted)
RE2
-
Radial error signal 2 (summation of
CD ROM
-
Digital Data information on disc
acL
-
a-channel Clock signal
DODS
-
Drop out detector supression
amplified currents D
1
and D
2
Switch
signal
aDA
-
a-channel Data signal
D1+4
-
Photodiode currents
RE dig
-
Radial error digital
CEFM
-
Clock Eight-to-Fourteen Modulator
aRA
-
a-channel Request Acknowledge
FE
-
Focus error signal
RE lag
-
Radial error signal for LAG network
CLAB
-
Clock signal Decoder-A to Filter-B
SCAB
-
Subcode clock Decoder-A to Filter-B
FE-lag
-
Focus error signal for LAG network
RD
-
Ready signal, starting up procedure
CLBD
-
Clock signal Filter-B to DAC
SCLK-I
2
C
-
Serial Clock signal Decoder-Control
HF
-
HF output for DEMOD
finished
CRI
-
Counter Reset Inhibit
µP (Inter IC Connection)
HFD
-
HF detector output for DEMOD
RPU
-
Radial puls after track jumping
DAAB
-
Data signal Decoder-A to Filter-B
SDAB
-
Subcode data Decoder-A to Filter-B
HF-in
-
HF current input
Si
-
On/off control for laser supply and
DABD
-
Clock signal Filter-B to DAC
SDAT-I
2
D
-
Serial Data signal Decoder-Control
LM
-
Laser monitor diode input
focus circuit
DEEM
-
Deemphasis
µP (Inter IC Connection)
LO
-
laser amplifier current output
TL
-
Track loss signal
DOBM
-
Digital out signal
SWAB/SSM -
Sbucode Word/Start-stop motor
MC
-
Motor control signal
Ve
-
Control voltage for turntable motor
EFAB
-
Error flag Decoder-A to Filter-B
signal
RE
-
Radial error signal (amplified
IREF
-
Reference Current
WSAB
-
Word Select Decoder-A to Filter-B
RE
2
-RE
1
currents)
MSTP
-
Motor start-stop signal
WSBD
-
Word Select Filter-B to DAC
MUTE
-
Mute signal
XIN
-
Oscillator signal in Decoder-A
XSYS
-
Oscillator signal out Filter-B
cs
9 948

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