Technics SL-HD505, Руководство по обслуживанию, Страница: 27 / 35

15.1. 15.1. 15.1. 15.1. IC701 IC701 IC701 IC701 (AN8839NSBE2): (AN8839NSBE2): (AN8839NSBE2): (AN8839NSBE2):
SERVO SERVO SERVO SERVO AMP AMP AMP AMP
Pin
No.
Mark I/O
Division
Function
1 PDE I Tracking signal input terminal 1 (E ch)
2 PDF I Tracking signal input terminal 2 (F ch)
3 VCC I Power supply terminal
4 PDA I Focus signal input terminal 1 (A ch)
5 PDB I Focus signal input terminal 2 (B ch)
6 LPD I APC amp. input terminal
7 LD O APC amp. output terminal("L": laser
ON)
8 RF O RF adding output terminal
9 RFIN I AGC input terminal
10 CSBRT I OFTR capacitor connection terminal
11 CEA I HPF-AMP capacitor connection
terminal
12 BDO O Drop out output terminal("H": Drop
out)
13 LDON I Laser ON signal input terminal("H":
laser ON)
14 GND — GND terminal
15 /RFDET O RF detection signal output terminal
("H": detection)
16 PDOWN — Connected to GND
17 OFTR O Off track signal output terminal ("H":
off track)
18 NC — —
19 ENV O RF envelope signal output terminal
20 NC — —
21 NC — —
22 TEN I Tracking error amp input terminal
23 TEOUT O Tracking error amp. output terminal
24 FEOUT O Focus error amp. output terminal
25 FEN I Focus error amp. input terminal
26 VREF O VREF output terminal
27 TBAL I Tracking balance adj. input terminal
28 FBAL I Focus balance adj. input terminal
15.2. 15.2. 15.2. 15.2. IC702 IC702 IC702 IC702 (MN662790RSA1): (MN662790RSA1): (MN662790RSA1): (MN662790RSA1):
SERVO SERVO SERVO SERVO PROCESSOR/DIGITAL PROCESSOR/DIGITAL PROCESSOR/DIGITAL PROCESSOR/DIGITAL
SIGNAL SIGNAL SIGNAL SIGNAL PROCESSOR/DIGITAL PROCESSOR/DIGITAL PROCESSOR/DIGITAL PROCESSOR/DIGITAL
FILTER/D- FILTER/D- FILTER/D- FILTER/D-A A A A CONVERTER CONVERTER CONVERTER CONVERTER
Pin
No.
Mark I/O
Division
Function
1 BCLK O Serial data bit clock output
terminal(Not used, open)
2 LRCK O L/R discriminating signal output
terminal(Not used, open)
3 SRDATA O Serial data output terminal(Not used,
open)
4 DV
DD1
I Power supply (digital circuit) terminal
5 DV
SS1
— GND (digital circuit) terminal
6 TX O Digital audio interface signal output
terminal
7 MCLK I Microcomputer command clock signal
input terminal(Latching on the data by
rising edge)
8 MDATA I Microcomputer command data signal
input terminal
9 MLD I Microcomputer command load signal
input terminal
Pin
No.
Mark I/O
Division
Function
10 SENSE O Sense signal output terminal (OFT,
FESL, NACEND, NAJEND, DATA,
SFG) (Not used)
11 /FLOCK O Focus servo lead-in signal output
terminal ("L": lead-in) (Not used)
12 /TLOCK O Tracking servo lead-in signal output
termianl ("L": lead-in) (Not used)
13 BLKCK O Sub-code block clock signal output
terminal (fBLKCK=75 Hz:
normal
play)
14 SQCK I Sub-code Q resistor external clock
signal input terminal
15 SUBQ O Sub-code Q code output terminal
16 DMUTE I Muting input terminal ("L": mute)
(Connected to GND)
17 STAT O Status signal output terminal (CRC,
CUE, CLVS, TTSTOP, FCLV, SQOK)
18 /RST O Reset input terminal
19 SMCK O Not used, open
20 CSEL O Power supply terminal
21 TRV O Traverse forced feed terminal(Not
used, open)
22 TVD O Traverse drive signal output terminal
23 PC O Spindle motor drive signal output
terminal ("L": ON)
24 ECM O Spindle motor drive signal output
terminal (Forced mode)
25 ECS O Spindle motor drive signal output
terminal (Servo error signal)
26 KICK O Kick pulse output terminal (Not used,
open)
27 TRD O Tracking drive signal output terminal
28 FOD O Focus drive signal output terminal
29 VREF I VREF input terminal
30 FBAL O Focus balance adj. output terminal
31 TBAL O Tracking balance adj. output terminal
32 FE I Focus error signal input
terminal(analog input)
33 TE I Tracking error signal input
terminal(analog input)
34 RFENV I RF envelope signal input terminal
35 VDET I Oscillation det. signal input
terminal("H": det.) (Connected to
GND)
36 OFT I Off track signal input terminal("H": off
track)
37 TRCRS I Track cross signal input
terminal(Connected to GND)
38 /RFDET I RF detection signal input terminal("L":
detection)
39 BDO I Dropout signal input terminal ("H":
dropout)
40 LDON O Laser ON signal output terminal ("H":
ON)
41 PLLF2 — PLL loop filter 2 terminal(Not used,
open)
42 DSLF2 — DSL loop filter 2 terminal
43 WVEL O Double velocity status signal output
terminal ("H": double) (Not used,
open)
44 ARF I RF signal input terminal
45 IREF I Reference current input terminal
46 DRF I DSL bias input terminal
47 DSLF I/O DSL loop filter terminal
48 PLLF I/O PLL loop filter terminal
49 VCOF — VCO loop filter terminal(Not used,
connected to GND)
50 AV
DD2
I Power supply (analog circuit) terminal
15
15 15
15 Terminal
Terminal Terminal
Terminal Function
Function Function
Function of
of of
of IC´s
IC´s IC´s
IC´s
27
SL-
SL- SL-
SL-HD50
HD50 HD50
HD505
5 5
5