Philips CDR775 Service Manual page 30

List of Abbreviations
9. List of Abbreviations
SIGNAL NAME
+12V
+12VA
+5V
+5VA
+9SRVPWR
12VPWR
-8V
-8VA
A(1:20)
A(10:20)
A t
A1LF, A2LF
A2
A-8V
AEGER
AINTON
ALE
ALPHAO
ALS
ASTROBE
ATIP
ATIPSYNC
ATT
B1LF, B2LF
BCLK
BE_RESET
BIASC
BKPT
C1LF, .. , C 4 L F
CAGAIN
CAHF
CALF
CASO
CAS1
CDR
CDR60CFLG
CDR60CL1
CDR60CS
CDR60INT
CDR60LWRT
SIGNAL FLOW
main supply voltage from PSU
supply voltage
main supply voltage from PSU
supply voltage
IC7558 ->- IC7240
supply voltage
main supply voltage from PSU
supply voltage
IC7701 -> R3818.R3819, R3820, R3821,
R3897 -> IC7703
IC7701 -> R3819, R3820, R3821 ->
IC7702
IC7010->IC7270
CONN1000->IC7010
IC7010->IC7270
supply voltage
IC7008-> IC7010
IC7270->R3213->IC7209,
IC7300IC7270 -> R3230
IC7270->IC7010
IC7008->IC70tO
IC7008->IC7010
IC7300->IC7270
IC7270 -> R3717, R3722IC7270 ->
IC7701
CONN1000->IC7010
IC7701 -> R3898A -> IC7300
IC7701 -> R3261 -> IC7270IC7701 ->
R3716
IC7008 -> R3056
CONN1819, R3907 -> IC7701
CONN1000-> IC7010
R3016,R3115->IC7010
CONN1000 -> C2374
IC7010->IC7270
IC7701 -> IC7702
IC7701 •> IC7702
IC7008 -> IC7355
IC7300 -> R3382B -> CONN1812
IC7300 -> R3382C -> CONN1812
IC7270 -> R3235B -> R3702, IC7300
IC7300 -> IC7270
IC7300 -> R3048
FUNCTION AND DESCRIPTION
+12V supply voltage from PSU
+12V supply voltage for Audio part
+5V supply voltage from PSU
+5V supply voltage for Audio part
PoWeR supply for SeRVo driver IC
+12V supply voltage for servo part
•8V supply voltage from PSU
-8V supply voltage for Audio part
Address lines 1 to 20 between DASP and flash ROM
Address lines 10 to 20 between DASP and DRAM
amplitude of the "land" reflection relative to the average EFM, voltage
output, OPC input
satellite photo diodes A1, A2 current output
amplitude of the "pit" reflection relative to the average EFM, voltage
output, OPC input
-8V supply voltage for servo part
Analog Error signal GEnerator for Recordable
Alpha INTegrator ON (to AEGER)
Address Latch Enable; external address latch strobe line, freeze
address when low
analog voltage mode output from OPC D/A converter
Alpha Loop Switch (to AEGER)
Alpha STROBE (to AEGER)
Absolute Time In Pre-groove (sync signal)
ATIP SYNC signal
ATTenuation request from MACE2 to audio DAC, active low; means
that the output can be attenuated in case of search activities
satellite photo diodes B 1 , B2 current output
I2S1 BitCLocK from DASP to CDR60 (playback and record)
Basic Engine RESET, active high
BIAS Current switch CDRW output
JTAG mode select / debug mode BreaKPoinT
Central photo diodes C 1 , C2, C3, C4 current output
set-point laser power on disc, current input
Central Aperture (central photo diodes) High Frequency current
output (C1+C2+C3+C4)
Central Aperture (central photo diodes) Low-pass Filtered signal (DC
coupled EFM signal), voltage output, OPC input
Column Address Strobe DRAM for upper byte
Column Address Strobe DRAM for lower byte
CDR strategy detected output (active high)
serial output of error corrector status information of the CDR60-
decoder, to be measured at test connector
output of CLock signal for testing system clock of IC CDR60 at test
connector
CDR60 Chip Select, active high
CDR60 INTerrupt line, active low
CDR60 Laser WRiTe control output
CDR775