Sony PS-X7 - Page 36

1 (switch: ON)
START/STOP
3) Ss) er
switch
(S5)
|
¢
(inversion)
start/stop Nf | , (D1 lights up)
flip-flop
|
7
(inversion
)
(motor rotates)
motor flip-flop
|
| |
REPEAT | |
switch (S6) | |
| |
|
repeat flip-flop a
+1 (switch: ON)
play switch | t i i)
3) | | | i ia (switch: ON)
return switch | | F t 0
(S4) | |
| ! \ 7 1 (during solenoid operation)
solenoid operation i ; | oO
ru | 7171 (0410 ON)
boat | 3
0
reset (Q410)
(S5
START)
(
return
operation
is activated by S3.
when S5 is set to stop
during lead-in.
Fig. 3-10. Operation if START/STOP switch is touched during lead-in
SONY-00830 / DRUCK 20
PS-X6/X7 PS-X6/X7
3-6.
1.
2
t $2
$2-1
4 —
R209
33k
Q201 2SC6334 9202, pocoeae
BUFFER AMP HING 12k
ICi-2 pPC324C
LIMITER AMP.
MGH
SPEED DETECTING
HEAO
0.047
SF20!
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(our
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|
1
16202
D201
1T40
=
403,404
2SC633A
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ranene
PU
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wt
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R405
10k
Q401,402
22k
3.9k
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$401
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|
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AMP
47k
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0401~403 IT40
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404,405 |
1740-3,
Rv201
(sawtgor WAVE) To905 001 20
Po a40 CH
Operation if the START/STOP Switch touched
during Lead-in (See Fig. 3-11)
At the commencement of the auto-start opera-
tion, Q408 of the start/stop flip-flop circuit is
turned on, and Q409 turned off.
Since Q408 is turned on, the start indicator
D1 is turned on. Q411 of the motor flip-flop
circuit is turned off, and Q412 is turned on,
thereby starting up the motor. Activation of
the mechanical systems results in lead-in motion
of the tonearm.
If SS is then touched during this lead-in
operation, the start/stop flip-flop circuit is
inverted. That is, Q408 is turned off, and
Q409 is turned on.
The starting indicator D1 will thus turn off as
a result of Q408 turning off.
When S3 is then turned on mechanically, Q405
is turned on by the D402/D402 AND gate,
thereby passing a current through the solenoid,
and activating the auto-return operation
The circuitry is thus restored to the original
status.
Q405,406 2SC633A
Fae
Q407 2sci475
330r SWITCHING SOLENOID ORIVE
0305
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407
C404
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aio 8 203,204 Q205, Q206 Q207,208 Q209,210
a tn 25C633A 2SA677 25C633A 2SA677 2SC633A
COMPARATOR BUFFER AMP = SWITCHING SWITCHING SWITCHING
+
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22k 0209 aoe
0203
Bene 'T40
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ICt-1 pPC324C
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WHEN ACTIVATING
t SOLENOID, SOLENOID)
PUSHES CLAW OF
te GEAR
ON: DURING
Pay PLAY
~~ ON
41
0402 Fae R412 4.7k
0408,409 2SC633A = Q410 2SC633A
START/STOP FLIP-FLOP (RESET
Q411,412 2SC633A
MOTOR ORIVE FLIP-FLOP
D414 1T40 — — —
28C633A
i SWITCHING
Sh 8 ays
Q415,416 2SC633A
fp
0414
0415
IT40
REPEAT FLIP-FLOP Gala
3.3725 0406~ 409
IT40
9
S4 RETURN
Q413,414 2SC633A
OC AMP
R430 C4i2
10k 1/50V
C413
1/50V
0410~ 413 1T40
Fig. 3-11.
°
OFF ON