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Symbol
Signal Source
Signal Name
PD-G010
Function
1C5-18
Mirror
Pitless side (mirror surface) detector signal (pitless side: H)
1012-14
Mirror inhibit
Control signa! which inhibits transfer of MIRR signal from IC5 to ICO
1C12-19
Muting
IC9 digital mute contro! signal
$102
oO
|
pen
Output from switch which detects when disc tray is open (open: L)
1C9-57
RAM overflow
Output signal generated when RAM area overflow occurs (overflow: H)
Q11-C
Reset
Power ON reset signal
TP4-7(1C9, 25)
Read frame clock
Standard frame clock signal (7.35kHz)
1C12-58
Remote control key
Remote control key strobe passed from remote control decoder (IC11) to main
Microprocessor (1C12)
IC9-22
Sub-code serial output
1C12-55
Serial clock
FL display data transfer clock
1013-4
System clock
Audio playback system clock
IC9-24
Sub-code sync
1012-56
Serial data
Control signal passed to FL control CPU
1C6-5
:
Detector output bus from IC6 & IC9
CN4-5
| Spindle drive
Spindle motor drive output
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CN4-6
Spindle return
Spindle motor drive current detector
1C12-57
1€201-21
Serial reset
Status
IC9-23
1C2-8
1C5-17
TP1-7
TP1-2
TP1-9
1C13-21
IC9-79
_t
Sub-code Q
Tracking drive
Tracking error
Tracking loop in
Tracking loop out
Key/display/microprocessor reset signal
Display data ''ready to send''
Tracking return
Tracking actuator drive current detector
Digital filter 88.2kHz strobe signal input
Digital filter 88.2kHz strobe signal output
1C9-49
Write enable
RAM write enable
1C9-25
Write from clock
Frame clock signal made from data (frame sync. lock: 7.35kHz)
1C12-16
Servo and decode IC serial data latch clock pulse signal
27
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