List of Abbreviations
GB 72 CDR7799.
KEY_PRESSE
D
IC7706B -> R3816 -> IC7701 KEY PRESSED interrupt
KILL T7560, T7561, R3560 -> CONN1400,
R3424, R3428
KILL signal from power supply part to audio outputs
KILL_OUT IC7701 -> R3532 disables the KILL activity from the PSU; 1 = no kill,0 = kill active
L12V supply voltage +12V supply voltage for servo/Laser part
L3_CLK IC7701 -> R3725 -> IC7406 L3 interface CLocK line / control CODEC (not for CDR779)
L3_DATA IC7701 <-> R3728 <-> IC7406 L3 interface DATA line with CODEC (not for CDR779)
L3_MODE IC7701 -> R3735 -> IC7406 L3 interface MODE line selects data or address transfer mode for
CODEC (not for CDR779)
L5V supply voltage +5V supply voltage for servo/Laser part
L-5V supply voltage -5V supply voltage for servo/Laser part
LASCK IC7270 <-> R3248D ClocK line DAC LASer control
LASDACCK R3248D <-> IC7016 ClocK line DAC LASer control
LASDACDI R3248C <-> IC7016 Data line DAC LASer control
LASDACLD R3212 <-> IC7016 LoaD line DAC LASer control
LASDD IC7270 <-> R3248C Data line DAC LASer control
LASLD IC7270 <-> R3238 <-> R3212IC7270 <->
R3232
LoaD line DAC LASer control
LEFT CONN1708, C2743 -> IC7401C,
IC7407C
audio output LEFT channel from CD-player in CDR779
LLP IC7270 -> IC7300 Laser Low Power (active high), switches the laser from write to read
power whenever the device tends to go offtrack
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 decoder + 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 voltage +12V 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 (CDR779 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
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