Technics SL-HD301 Service Manual

SL-HD301 / SL-HD501
13 Terminal Function of IC’s
e IC701 (AN8839NSBE2): SERVO AMP
cee
Division
pee
ch)
ee
ch)
3 VCC Power supply terminal
4 [PDA |__| Focus signal input terminal 1 (A ch) |
PDB !____|Focus signal input terminal 2 (B ch) |
fo LPD ft [APC amp. input terminal
7 LD Comat es amp. output terminal("L": laser
ON)
je |RF_ [ORF adding output terminal
jo REIN, [| [AGC input terminal
10 |CsBRT__[!____[OFTR capacitor connection terminal |
i a
terminal
BDO a Drop out output terminal("H": Drop
out)
at el ae Laser ON signal input terminal("H":
laser ON)
(14 (GND [GND terminal
cae ae Gee RF detection signal output terminal
("H": detection)
[16 |POOWN|—___[ConnectedtoGND
ae ae Off track signal output terminal ("H":
off track)
Wg NG
119 |ENV [ORF envelope signal output terminal _|
20 eo NG. eS ee ar
i SING a ae ee
22 {TEN [Tracking error amp input terminal _|
23 |[TEOUT [0 Tracking error amp. output terminal _|
24 |FEOUT |O _|Focus error amp. output terminal
25 [FeN |! Focus error amp. input terminal |
26 [vREF [0 [VREF outputterminal
27 [TBAL _—si{|_—_| Tracking balance adj. input terminal
28 |FBAL_—si{i_—_|Focus balance adj. input terminal
e IC702 (MN662790RSA): SERVO PROCESSOR/DIGITAL
SIGNAL PROCESSOR(DIGITAL FILTER/D-A CONVER-
TER
Function
Division
terminal(Not used, open)
1@) L/R discriminating signal output
terminal(Not used, open)
oO Serial data output terminal(Not used,
open)
Power supply (digital circuit) terminal
GND (digital circuit) terminal
Digital audio interface signal output
terminal
Microcomputer command clock
signal input terminal(Latching on the
data by rising edge)
Microcomputer command data signal
input terminal
Microcomputer command load signai
input terminal
Sense signal output terminal (OFT,
FESL, NACEND, NAJEND, DATA,
SFG) (Not used, open)
Focus servo lead-in signal output
terminal ("L": lead-in) (Not used,
open)
<= is)
26
Function
Tracking servo lead-in signal output
Mark vO
Division
Pole
termian| ("L": lead-in) (Not used,
open)
13 BLKCK Sub-code block clock signal output
Fi ae iaaiel terminal (fBLKCK=75 Hz: normal
play)
14 Sub-code Q resistor external clock
signal input terminal
SUBQ [O_[Sub-code Q code output terminal
16 Muting input terminal ("L": mute)
DMUTE
(Connected to GND)
STAT Pose! signal output terminal (CRC,
CUE, CLVS, TTSTOP, FCLV,
SQOK)
18 [Rst fo | Reset input terminal
19 [sMck [0 _[Notused, open
20 |CseL [0 Power supply terminal
21 TRV Traverse forced feed terminal(Not
used, open)
22. [Two fos Traverse drive signal output terminal
23 PC Spindle motor drive signal output
terminal ("L": ON)
le cee Spindle motor drive signal output
a ee al
terminal (Forced mode)
KICK
N
Spindle motor drive signal output
terminal (Servo error signal)
Kick pulse output terminal (Not used,
open)
O Tracking drive signal output terminal
oO Focus drive signal output terminal
VREF input terminal
oO Focus balance adj. output terminal
Focus error signal input
terminal(analog input)
Tracking error signal input
terminal(analog input)
RF envelope signal input terminal
Oscillation det. signal input
terminal("H": det.) (Connected to
GND)
Off track signal input terminal("H":
off track)
Track cross signal input
terminal(Connected to GND)
RF detection signal input
terminal("L": detection)
Dropout signal input terminal ("H":
[o)
<jaj4
sth
mjo;o na
aH m |
> -
4 m wl wlwlol[N]M[YT NRT NT & Wl NIAlOlOlolnN] @) a #
7 @ > im
l
VDET l
a ee
ei
38 /RFDET ro
O
wo Wi] o
o oye
wo
dropout)
40 LDON Laser ON signal output terminal ("H":
ON)
PLLF2 — PLL loop filter 2 terminaal(Not used,
open)
42 |DSLF2
43 WVEL oO Double velocity status signal output
terminal ("H": double) (Not used,
open)
44 [ARF | __RF signal input terminat |
IREF | Reference current inpyt terminal
46 |DRF iI DSL bias input termina
an ae a VCO loop filter terminal Not used,
connected to GND)
AVpp2 Fe Power supply (analog circuit)
terminal
51 [AVcsp GND (analog circuit) terminal |
EFM signal output termi nal(Not
used, open)
fe ae

Technics SL-HD301 Specifications

General

Brand	Technics
Model	SL-HD301
Category	CD Player
Language	English