Block Diagram - Philips CD210 Service Manual

4-1
BLOCK DIAGRAM
MC
offset IN
offset OUT
PLLH
RADout
RE
CS 22 190
Automatic Gain Control
Control bits for radial circuit
Equalizer reference current input
DC and LF gain control reference input
Capacitor wobble oscillator
Capacitor wobble oscillator
Decoupling input internal bypass
HF detector voltage input
Divide by 4 input
Drop out detector suppression
Photodiode currents
Focus error signal
Focus error signal for LAG network
HF output for DEMOD
HF detector output for DEMOD
HF current input to HF amplifier
HF amplifier and equalizer voltage output
Laser monitor diode input
Laser amplifier current output
Motor control signal
Offset control input
Offset contro! output
PLL on hold output
output of RE2-RE1 input
Radial error signal (Amplified RE,-RE,
currents)
BANOWIOTH
8CM-12CM DISC
DECODING 1
uPD41416
DRAM
Resistor wobble oscillator
Wobble generator input
Radial error signal 1 (summation of
amplified currents D, and D,
Radial error signal 2 (summation of
amplified currents D, and D,
Radial error digital
* Radial error signal for LAG network
Starting up capacitor input
On/off control for laser supply and focus
circuit. Ready signal, Starting up
procedure succesful.
Track loss output signal
Control voltage for turntable motor
Control voltage for turntable motor
Supply connection
Supply connection
MUSB:
ATSB
CD ROM
Switch
CEFM
CLAB
CLBD
CREF
CRI
DAAB
DABD
DEEM
DOBM
EFAB
MUTE
DECODING 2
Attenuation of Audio level in Search
position (Cueing)
Digital Data information on disc signal
Clock Ejight-to-Fourteen Modulator
Clock signal Decoder-A to Filter-B
Clock signal Filter-B to DAC
Reference Current
Counter Reset Inhibit
Data signal Decoder-A to Filter-B
Data signal Filter-B to DAC
Deemphasis
Digital out signal
Error flag Decoder-A to Filter-B
Mute signal
TDA 1543 Via
AUDIO
LEFT
DUAL DAC
6d8
4 LZZTATA Ry D
AUDIO i:
RIGHT
DABD
MOTOR
LOADING
MUSB
PD/OC
KBSC..
VLCD
QCL
QDA
QRA
SCAB
SDAB___
SWAB/SSM
WSAB
WSBD
XIN
XSYS
Soft Mute signal
Phase detector - oscillator control
Key board scan
Voltage liquid cristal display
Q-channel Clock signal
Q-channel Data signal
Q-channel Request Aknowledge
Subcode clock Decoder-A to Filter-B
Subcode data Decoder-A to Filter-B
Subcode Word/Start-stop motor signal
Word select Decoder-A to Filter-B
Word Select Filter-B to DAC
Oscillator signal in Decoder-A
Oscillator signal out Filter-B
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