Technics SL-PD687

‘SL-PD687
=a-
* 1C401 (UPD78044A058): System control & FL drive
Bin mark | ie, Function Mat | tO, Function
No.
Division
Drvielon
Pin]
wax
|
HO
Raweica
Pin]
Mark
|
vO
=
a3
|
wee
°
Double
velocity
status
signal
es
|
FOLK
co
_|
Crystal
frame
clock
No.
Division
‘No.
Division
(*H": double) {Not used, open) Tl a
‘ ‘ 0 | end atonal of FL. enter ae | xa — _} Not used, onan
44] ARF 1 | RF signal input 64 | IPFLAG | 0 | interpolation flag terminal i ot Sees ee
a3] vss — | GND terminat
8 | vop 1 | Power supply terminal L
4s | REF 1 | Reterence current input 5 | Flac | 0 | Flag terminal Si lcss ?
9 | mcLk | 0 | Command clock signal Crystal Ose termina
DSL bias terminal “Turntable servo phase synch. 74.2596MH2)
48 OBE. | | vot usea, open) ‘ignal ini 5 DP ae 35 | x2 °
oo) cvs © | eH*: CLy, "L": Rough servo)
(Not
used,
open)
36
|
KEYINT
47 | DSLF | 10 | DSL to0p fiter terminal ‘Command ioad signal ‘ 5 1 | Key return signal
HM 2 {ee Loan) 42 | KEVIN’
es eee (9 _| Subcode CRC check terminal
48 | PLLF | 10 | PLL toop filter terminal (1H: OK, “L": NG) an mee eee Jes)? Baul | 20. | ese serae Tis
De-emphasis ON signal
4a | voor | vo | 100 loon titer terminal 68 | vemPH | 0 | CH": 0N) 13, | omute | 0 | Muting contro! signal 44 | POFF 1 | Power det. terminal
(Not ued: cpeny (Not used, open)
Rotary tray position det.
50
|
AVoo2
1
Sears
(analog
clreulty
Re-synchronizing
signal
of
14
|
sack
©
=|
Sub-code
Q
register
clock
48
[POSITION]
1
|
tare
ay
69 | nesy | 0 | frame sync.
(Not used, open) s | nc | — |Notconnecte as | speep | 1 | Leading motor speed sensor
51
|
Ava
|
—
—
|
GND
(analog
circuit)
terminal
signal
70 | imst2 iy, | Geset sermanal afer “Mnsit 16 | susa 1 | sub-code @ data 47 |Remocon| 1 | Remote contro! signal input
52 | EFM © | EFM signal (Not used, open)
nn] rest | 1 | Tost terminal 17 | imeset | 1 | Reset signal input «| ic — | Not used, connected to GND
as
|
<pex.
|
Pk
extract
clock
(Normal:
“H")
(f=43218MH2) ‘Optical servo condition
ne
oe
|_|
Power
supply
analog
circu
18
|
zsense
|
—
_
|
Not
used,
connected
to
GND
49
|
mock
|
1
|
Peete
Phase
comparated
signal
of
fod
terminal
(1)
aa
=
s4| Poo © | EFM and PCK 19 | REC.EN | 1 | Synchro. rec. control terminal Bo, | seuocx || ~ 1." | Geant teres sanettion frcue)
(Not used, open) 7a | our | 0 | teh audio signat car epee SoS UE IS
fatus signal (CRG,
‘Sub-code serial output data 20 AVSS! | sh | GND termina as PE a |_| Tstop, FoLv, sack)
ss | susc | o FLV,
(Not used, open) Saillecaveicst =
bat terminal (1) 21 | istsv | 0 | Reset signal output s2| vop | | Power supply terminal
il Sece. 1 | Subcode serial input clock
(Not used, connected to GND)
78 | OUTR © | Reh audio signal 22} OPEN 1 | Open detect terminal 83 | POWER | © | Power ON/OFF output terminal
sri Eee Polarity direction control sa |syNcHRo
2| on. | o NCH — | Not used, open
76i,) ORSEL ' {terminal of AF signat
Motor control signal
sa} xt 1 aa: Seo ce. $5 | KEYouTS
Crystal oscitiator terminal Frequency control terminal of i 5 © | Key scan signal
((=16.9944MH2) 77 | set 1 | crystat oscillator 60 | KEYouT1
59 x2 ° (Not used, connected to GND) 25 | LOAD © —_| Motor control signal er ar
5 i © | Segment signai of FL display
Test terminal
60] Vo 1 | Power supply terminal 78.) OPOEL 1 Normal: “U7 26 | pac © | Not used, open oD Se
7 7 | VPP 1 | Power supply terminal
Byte clock signal “SMCK" terminal frequency 27 | nestsw | 1 | Rest position ae
st
|
avtek
|
|
ee
cee
oon)
72
|
MseL
'
m2]
88
SMCK=4.2006MH9 va lupmowm| 1 | Taverss deck oplaowa oot | | P| oJ segment signa of FL splay
Sub-code frame clock signal terminal m| st
62
|
recocx
|
0
|
(
CLOCK=7.35kHz:
Normal)
|
see
|_|
SUBQ"
terminal
mode
select
(Not used, open) CH": @ code button 29 | avon 1 | Power supply terminal 78 | EXDATA | © | Not used, open
30] aver | 1 | Power supply terminal 73 | eXCLK | 0 | Not used, open
ai | ox — | Not usea, connected to GND wo | ce © | Gria signal of FL display