Technics RS-X501

32 33 34 35
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HiSCHEMATIC DIAGRAM Parts list on pages 30~32, 42~44.)
(This
schematic
diagram
may
be
modified
at
any
time
with
development
of
new
technology.)
Notes:
S601: Voltage selector in “240V” position.
(For [GC] area only.)
(100 V+ 127V<220V<-240V)
¢S701: Stop switch in “off” position. (DECK 1)
¢S702: F.F. switch in “off” position. (DECK 1)
¢S703: Rew. switch in “off” position. (DECK 1)
S704: Forward-side playback switch in “off” position.
(DECK 1)
S705: Reverse mode switch ( +) in “off” position.
°S706: Reverse mode switch (C*>) in “off” position.
S707: Reverse mode switch (O©) in “off” position.
°S708: Auto rec. mute switch in “off” position. (DECK 2)
S709: Reverse-side playback switch in “off” position.
(DECK 1)
¢S710: Meter-range selector switch in “off” position.
S711: Stop switch in “off” position. (DECK 2)
°S712: F.F. switch in “off” position. (DECK 2)
¢S713: Rew. switch in “off” position. (DECK 2)
°S714: Forward-side playback switch in “off” position.
(DECK 2)
S715: Reverse-side playback switch in “off” position.
(DECK 2)
¢S716: Record switch in “off” position. (DECK 2)
°S717: Pause switch in “off” position. (DECK 2)
¢S718: Synchro-start switch in “off” position.
S719: Editing tape speed selector (X2) in “off” position.
¢S720: Editing tape speed selector (X1) in “off” position.
¢ $722: Dolby NR C switch in “off” position.
¢S723: Tape counter reset 2 switch in “off” position.
¢S724: Tape counter reset 1 switch in “off” position.
¢°S725: Power switch in “on” position.
S726: Dolby NR B switch in “off” position.
S727: Auto-fade switch in “off” position.
¢S951: Mode switch in “off” position. (DECK 1)
°S952: Cassette half detection switch in “off” position.
(DECK 1)
S953: ATS (CrO,) switch in “off” position.
(DECK 1)
°S971: Mode switch in “off” position. (DECK 2)
S972: Cassette half detection switch in “off” position.
(DECK 2)
S973: Reverse rec. inhibit switch in “off” position.
(DECK 2)
¢S974: Forward rec. inhibit switch in “off” position.
(DECK 2)
¢S975: ATS (CrO,) switch in “off” position. (DECK 2)
S976: ATS (Metal) switch in “off” position. (DECK 2)
¢ Resistance are in ohms (Q), 1/4 watt unless specified
otherwise.
1K=1,000 (Q), 1M=1,000k (Q)
¢ Capacity are in micro-farads (uF) unless specified
otherwise.
¢ All voltage values shown in circuitry are under no signal
condition and playback mode with volume control at
minimum position otherwise specified.
( )esereeees Voltage values at record mode.
For measurement us EVM.
¢ Important safety notice
Components identified by /\ mark have special
characteristics important for safety. When replacing
any of these components, use only manufacturer’s
specified parts.
o( omen + 2 > ) indicates +B (bias).
o( sees —-B>see8 ) indicates —B (bias).
e( ) indicates the flow of the playback signal.
*( c= ) indicates the flow of the record signal.
* Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
%* Cover the parts boxes made of plastics with aluminum
foil.
* Ground the soldering iron.
* Put a conductive mat on the work table.
* Do not touch the legs of IC or LSI with the fingers
directly.
Mi
TERMINAL
GUIDE
OF
IC’S,
TRANSISTORS
AND
DIODES
M50963-227SP 64 Pin
UPC1297CA | 18 Pin |
AN7384-B | 16 Pin | AN7351K | 42 Pin |
TEA0665 | 28 Pin | HD404302SA02
2SD1450RSTA,
2SB1030RSTTA,
y=
2SB1357EFTA,
2SD2037EFTA
2SB621ARSTA,
2SD592AQRSTA
iP
Cc
DTC114ESTP
ane)
cs
2SJ164PQRTA
Ca
Cao—__fq—_ 0A
MA167TA, 1SR35200TB,
MA165TA, MA7OOTA,
188133 A
MSA1048ABCTA,
MSC2458ABCTA
MA4062LTA,, t
MA4240H,
MA4082MTA,
MA4056MTA 4
Ca
Ca o—_§_4q-—_0A