Technics RS-X501

vo
Division
a7 B Dolby NR B “ON/OFF” select
(P1 (1)) signal (“ON”: “L”, “OFF”: “H”)
ENC Encode/decode select signal
(P1 (0)) of dolby NR circuit
“ON/OFF” select signal of
power supply circuit (“ON”:
“pe. “OFF”: “H”)
po Serial data signal to FL display
“ON/OFF” select signal of
“AUTO FADE” display (“ON”:
a Bie “OFF”: “H”)
Not used, open
Reverse rec. inh. switch select
terminal of deck 1 (““ON”: “L”,
“OFF”: “H”)
(Not used, open)
Forward rec. inh. switch select
terminal of deck 1 (“ON”: “L”,
“OFF”: “H”)
Mechanism motor speed
select signal of deck 2 (‘‘X1”:
“H”, "XO": “L”)
Mechanism plunger
“ON/OFF” select signal of
deck 2 (“ON”: “H”, “OFF”: “L”)
Mechanism motor “ON/OFF”
select signal of deck 2 (“ON”:
“H”, “OFF”: “L”)
Mechanism mode “ON/OFF”
select signal of deck 1 (“ON”:
bal a “OFF”: “H”)
Cassette half detection switch
terminal of deck 1 (“ON”: “L”,
“OFF”: “H”)
Mechanism motor speed
select signal of deck 1 (“X1” 1:
“H”, “XQ”: “L”)
Mechanism plunger
“ON/OFF” select signal of
deck 1 (“ON”: “H”, “OFF”: “L”)
Mechanism motor “ON/OFF”
select signal of deck 1 (“ON”:
(P2 (0))
(Not used, open) “H”, “OFF”: “L”)
Music select det. signal (“H”:
NO SIGNAL, “L”: ON SIGNAL)
Rec level control signal
Lch level signal
Rch level signal
} 28 | RESET ee Reset terminal (“RESET”: “H”)
| 29 | TEST ae Test terminal
Clock OSC terminal (4MHz)
Tape counter reset terminal of
deck 2
Tape counter reset terminal of
deck 1
GND terminal
Power supply terminal
33 G1
5 5 Grid signal for FL display
41 G9
_ pw | — | Notused,open
Mi BLOCK DIAGRAM
AN7384-B
ELECTRIC VOLUME
Feet ere ee at
Music Selector
Controt
LINE IN
(Len) g
Q! | REC
(Q2) | Mute
DECK |
PLAYBACK HEAO—— §
(Len)
3104)
Switching
(Play Zon)
DECK 2
R/P HEAD —— 3
(Len
(ATS/CrOz)
fo)
(Q6 ,8,10,12,14)
Switching
t $953 (tape select
high speed)
M5218L
EGE. osic
MUSIC SELECTOR
AN7351K TEAO6ES
16232 ( Jindicates pinNo. 40 , 403 { g c302 9)
REC/ PLAYBACK AMP of right channel. (402,404) OOLBY NR (B/C)
MPX
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VR3(VR4)
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| H Switching
'{fcine rs] | (8/C/OFF)
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VR7(VR8)
OVERALL
GAIN ADJ.
ie
O5,7,9,11,13
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BIAS CURRENT ADJ.
Bios OSC
control
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L485
Switching 2h ene
(R/P select)
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Gs [ Sritena 24 RESET
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(POWER) PWIN
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(REC LEVEL) -———4Ivr IN
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2916, 917
Solenoid $3,
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9920, 921
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ICAPSTAN,
MOTOR: