Technics SL-PS670D - Block Diagram Details; Circuit Block Diagrams

SL-PS670A
the belt
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SL-PS670A
7
7 Block Diagram
Note: ——pee AUDIO SIGNAL 1
| OPTICAL PICKUP UNIT SERVO CIRCUIT MAIN CIRCUIT
ST
MN6474E
DIGITAL FILTER
& D/A CONV.MASH)
A+C/B+D/E/F BA4560FEI
DIFFERENTIAL
AMP
TBAL MN662713RGI q
ANB805SBE!
FRA
SRDATA
EN
SRDATA
>
LPF.
FEOUT FE SERVO PROCESSOR / DIGITAL
TE SIGNAL PROCESSOR/DIGITAL = LRCK
TRCRS FILTER & D/A CONVERTER BéLk
SERVO AMP TEOUT LM833M63
BA4S60FEI
OIFFERENTIAL 1C89 1 (1/2)
BODO
OFTR
/RFDET
AMP
on
po
OFT
BD0
0751,752
Q803,804
SUPPLY
SPINOLE
MOTOR
Q801,802,854
DE-EMPHASIS
DRIVE
TRV, TVD,ECM,
ECS, KICK,TRD,FOD
Pc SENSE,
/FLOCK,/TLOCK, MCLK VCOF
SOCK,SUBQ,STAT /RST = MDATA,MLD TX
XI, X2
851,853
AN8B389SEI 3 MUTING
SS SS
PHOTO CONTROL
ue —St— | dloves FOCUS COIL/
RADIAL
COIL/
a
SLEDGE
MOTOR/
SPINDLE MOTOR
SENSE,/FLOCK,/TLOCK, /SRST c
DRIVE Sock, SUBG.STAT MDATA.MLD 251,52 ' HEADPHONES CIRCUIT
! RESET a .
SLEDGE
o2-
SIGNAL
GENERATOR
woror
|
sd
saineine
tarzoisa
| iC781 |
UPD78042 4014 ,
MOTOR ORIVE
/OPEN,
oo SYSTEM CONTROL/FL DRIVE ae >
(REST SW)
/OPEN SW
REST SW /CLOSE SW
7POWER OFF
POWER SUPPLY CIRCUIT 22
PI-PIO POWER STANDBY
PIU-PI6 1G-10G Sw LED REMOCON
Pl22-PI26
LM2940T5SM ‘ '
ae Mi EGEREE wcrancio7oRe
® 0
(STANDBY MCT4HC74A0R2
RCDHC ~278N MC74HC86DR2 ‘
S65! DIGTTAL
KEY
MATRIX
(POWER)
REMOTE
(OPTICAL
OUT)
oi
oO +5V SENSOR WAVEFORM
SHAP
CIRCUIT
POWER
ac
+
eaNee:
0891-893
'
FORMER FL DISPLAY } From POWER TRANSFORMER
POWER SUPPLY
Q31-34
REGULATOR
Ee POWER SUPPLY CONT.
To FL6OI
FL6OI
PT free recone TY
ae
OPERATION CIRCUIT
aqae S45:
$78!
$782
LOADING
(OPEN DET.)
5
=~ {CLOSE DET.)
UNIT
SL-PS670A
re
?r ch
OUT
1
BA4560N
t
HEADPHONES.
AMP
O HEADPHONES
‘ Q871,872
LOADING
MOTOR
|