Philips CDR880 - Signals and Abbreviations; Signal Definitions Part 1

SIGNALS AND ABBREVIATIONS
SIGNAL NAME _| SIGNAL FLOW
Power supply +12V for op-amps
Power supply +4V for servo microcontroller
Analog power supply +5V
Digital power supply +5V
Power supply +5V for Connector Part
Power supply turntable motor control circuit
Power supply User processsor & memories
Power supply -12V for op-amps
Power supply -8V
IC7170—>CONN.1101 Calculation 8 and HFO
Positive peak detector between CA and CALF
+ lt (t+ i+ ]+ ZIZlEligliv
lout’) <<
fom’)
>
B| Bl Zelalelala
>IS/2)a/<|<
a) |=|9
1C7170—>CONN.1101 Beta = (A1-A2)/(A1+A2)
Negative peak detector between CA and CALF
d
CK
1C7320<>R3904(IC7170)
|
Acknowledge
serial
communication
user
microprocessor
IC7320<>CONN.
1300
IC7320—31C7321
Address
bus
1C7320-sIC7322
TADC.—S—s=~SY—<“‘(W”~S”S~<C*é‘CS
CSC
AnlogyDigital
Converter
C—‘“‘CSCSC‘id
ATSB
1C7323—1C
7480
Attenuation
12
dB
of
DAC(active
low)
during
search
Central
Aperture(C1+C2+C3+C4)DC
—for
Mod.
calculation
CA
low
frequency
fCcDpb60,™~™~—“‘aYTSOCOC*~‘#’SDTT.WWTWWWOUOCOC*CWDecoders
es
—
—“‘“‘“‘“(“(“(;™CSC‘CY
1C7320->1C7465
DAI-O
interface
clock
1C7320-»CONN.
1302
1C7320<31C7465
DAI-O
interface
data
1C7320<>CONN.
1302
1C7320->CONN.
1302
CDCEP
CD-Circ
Efm
Encoder
Plus
CDE
CD
erase
|
CE_INT
1C7170<-1C7245
CDCEP
interrupt
|
CFLG
1C7210-»CONN.
1250
Correction
flag
output(CD60)
CLCE
1C7170-—3IC
7245
P
clock
output
encoder(CD60
CLDE
P
clock
output
decoder(CD60
CLDS
1C7170—1C7130
P
clock
output
DSICR
1C7245—1C7240
PLL
clock
output
from
encoder
1C7245-3IC7241
CLKQ
divided
by
2
CLO3
1C7440-1C7405
GDIN
clock3
out:
system
clock
for
ADC,
DAC
and
DAI-O
IC7440-1C7465
1C7440-1C7480
CLWP 1IC7170—1C7245 P clock Atip information CDCEP |
Communication clock for data transfer from user
1C7320<2CONN. 1300 microprocessor
COMSYNC 1C7320<91C7170 Communication synchronisation from user microprocessor |
1C7320eCONN.1300
CRIN 1C7440—1C7210 GDIN clock1 out: system clock for decoder CD60 |
CSEXP 1IC7320—1C7323 Chip Select Expander
PCS 83 976