List of Abbreviations
GB 54
CDR600
9.
LWRT R3048 -> IC7008 Laser WRiTe control input
MA(16:17) IC7270 <-> IC7208 bank switch higher address lines
MA(8:15) IC7270 <-> IC7802 <-> IC7208 address bus high byte
MACE2 Mini All Cd Engine (minus d OPC + PCS + extra RAM)
MAD(0:7) IC7270 <-> IC7209 <-> IC7802 <-> IC7208
<-> IC7300
bi-directional data bus / address bus low byte
MIRN IC7010 -> IC7270 MIRror Normalized (disc reflection) current output
MOTO1 IC7300 -> IC7355A turn table MOTOr control output
MRDN IC7270 -> R3276 -> R3242A, IC7802,
IC7300
Master ReaD, read strobe for external peripherals, active low
MUTE IC7270 -> R3718, R3723IC7270 -> IC7701 MUTE control from MACE2 to DASP, active low
MWRN IC7270 -> R3280 -> R3242B, IC7802,
IC7300
Master WRite, write strobe for external peripherals, active low
NMUTE IC7701 -> R3726, IC7406 MUTE output, low active
OFFTRACK IC7270 -> IC7300 OFFTRACK detection flag
OPC Optimum Power Calibration
P12VKILL supply v12V supply voltage for KILL-circuit
PCS Position Control Sledge
PCSCOS IC7225B, C2229 -> IC7270, CONN1812 Position Control Sledge COS feedback signal
PCSSIN IC7225A, C2227 -> IC7270, CONN1812 Position Control Sledge SIN feedback signal
PDAR Photo Diode Amplifier Recordable
PERASE R3036, R3031, R3030, R3029, R3028,
R3027, R3020 -> IC7002C, R3043, T7113
laser Power switch for ERASE
POWER_UP IC7270 -> R3243C,R3556, R3538 standby pin, high level activates essential powers necessary for full
function; overrules HI_POWER setting
PPN IC7010 -> IC7050C Push-Pull signal, Normalized, balanced, voltage output
PRCOARSE IC7016 -> R3057 drive signal from Power Read COARSE DAC for read current source
PRFINE IC7016 -> R3058 drive signal from Power Read FINE DAC for read current source
PROF_EBU IC7701 -> CONN1820 PROFessional digital output (CDR950 only)
PSENn IC7270 -> R3260 -> IC7208IC7270 ->
R3231
Program Store ENable; external ROM output enable line, active low
PW R3081 -> IC7008 Write Power signal to OPC input of MACE2
PWB IC7001C -> IC7016 drive signal to XDAC<->s for write and erase current sources and
VCAGAIN
PWD IC7016 -> IC7002BIC7016 -> IC7002C drive signal from XDAC for write and erase current sources
PWMAX IC7016 -> R3073 PW MAXimum signal from DAC used for determining set point for laser
power during writing
PWMIN IC7016 -> R3072 PW MINimum signal from DAC used for determining set point for laser
power during writing
PWRITE R3035, R3026, R3025, R3024, R3023,
R3022, R3021 -> IC7002B, R3044, T7124
laser Power switch for WRITE
RAD- IC7240 -> CONN1000 Radial actuator drive signal negative connection
RAD+ IC7240 -> CONN1000 Radial actuator drive signal positive connection
RAS0 IC7701 -> IC7702 Row Address Strobe DRAM
RCK IC7300 -> R3319 -> IC7701 EIAJ subcode clock from CDR60 to DASP (CD text interface)
RDGAIN1 IC7008 -> R3054 forward sense ReaD GAIN switch 1
RDGAIN2 IC7008 -> C2027 forward sense ReaD GAIN switch 2
RDGAIN3 IC7008 -> C2060 forward sense ReaD GAIN switch 3
RE IC7010 -> IC7215A Radial Error signal for fast track counting, voltage output
RECORDING IC7008 -> IC7010IC7008 ->
CONN1000IC7008 -> IC7355C
RECORDING output (active high)
REN IC7010 -> IC7270 Radial Error Normalized current output
RIGHT CONN1708, C2742 -> IC7401A, IC7407A audio output RIGHT channel from CD-player in CDR775
RXD_TOOL CONN1818 -> IC7701 Receive of UART for test TOOL
S1V65 Referenve Voltage 1.65V delivered by IC7215B for Servo part
S2V9 Reference Voltage 2.9V delivered by IC7010 for Servo part
SEL_HP_OUT IC7701 -> R3720 -> IC7407 SELect HeadPhone OUTput in DJ-mode (for CDR775 only)
SFSY IC7701 -> R3756 -> IC7300 EIAJ subcode synchronisation from DASP to CDR60 (CD text interface)
SIN- CONN1220 -> IC7225A Hall feedback signal from sledge motor
SIN+ CONN1220 -> IC7225A Hall feedback signal from sledge motor
SL- IC7240 -> R3265 -> CONN1220 SLedge motor drive signal negative connection
SL+ IC7240 -> CONN1220 SLedge motor drive signal positive connection