Yamaha CDC-775 Service Manual page 20

CDC-775
IC3 : MN35511
Signal Processor & Controller
Pin No. Name I/O
1 BCLK O
2 LRCK O
3 SRDATA O
4 DVDD1 I
5 DVSS1 I
O
6 TX
7 MCLK I
8 MDATA I
9 MLD I
O
10 SENSE
11 FLOCK O
12 TLOCK O
O
13 BLKCK
14 SQCK I
15 SUBQ O
16 DMUTE I
O
17 STAT
18 RST I
19 SMCK/ O
FCLK
20 CLVS/ O
FLAG6
21 TRV O
O
22 TVD
23 PC O
24 ECM O
25 ECS O
26 KICK O
27 TRD O
28 FOD O
I
29 VREF
30 FBAL O
31 TBAL O
32 FE I
I
33 TE
34 RFENV I
35 VDET I
I
36 OFT
37 TRCRS I
38 RFDET I
39 BDO I
O
40 LDON
41 TOFS O
42 PLAY/TRVSTOP O
43 WVEL O
44 ARF I
45 IREF I
46 DRF I
(Note 1) At the SMCK/FCLK pin, output does not stop while /RST=L.
19
Bit clock output for SR DATA
L/R identification signal output
Serial data output
Power supply for digital circuit
GND for digital circuit
Digital, audio, interface output signal
Microprocessor command clock signal input (data latched at leading edge)
Microprocessor command data input
Microprocessor command load signal input
Sense signal output (OFT, FESL, NACEND, NAJEND, SFG, NWTEND)
Focus servo drawing signal (L : when drawn)
Tracking servo drawing signal (L : when drawn)
Sub code block clock signal (BLKCK=75Hz)
Clock input for sub-code Q register
Sub-code Q code output
Muting input (H : MUTE)
Status signal (CRC, STCNT, CLVS, TTSTOP, SQOK, RESY, FCLV, FLAG6, SENSE ,/FLOCK, /RFDET, /TLOCK)
Reset input (L : RESET)
4.2336MHz clock signal output SMCK when command is defaulted. (Note 1)
SMCK (8.4672MHz), FCLK (7.35kHz) or "L" fixed is selected when command is switched.
With command defaulted : CLVS when IOSEL=H, FLAG6 when IOSEL=L
These settings can be reversed by command (FLAG6 when IOSEL=H).
Traverse (Feed) forced feed output
Traverse (Feed) drive output
Spindle motor ON signal L : ON (default)
Spindle motor drive signal (forced mode output)
Spindle motor drive signal (servo error signal output)
Kick pulse output 3-State
Tracking drive output
Focus drive output
Reference voltage for DA output block (TVD, ECS, TRD, FOD, FBAL, TBAL)
Focus balance adjustment output
Tracking balance adjustment output
Focus error signal input (analog input)
Tracking error signal input (analog input)
RF envelope signal input (analog input)
Oscillation detect signal input (H : DETECT)
Off track signal input (H : OFF TRACK)
Track cross signal input (analog input)
RF detect signal input (L : DETECT)
Drop out signal input (H : DROP OUT)
Laser ON signal output (H : ON)
Tracking offset adjustment output
Switched by command. PLAY (Play signal output) when command is defaulted.
Double speed status signal output (H : double speed)
RF signal input
Reference current input terminal
Bias terminal for DSL
Function
(L : LOAD)
3-State
3-State
(+5)
(NC)
(NC)
(NC)
(NC)
(NC)
(NC)