Technics RS-B465

Mi SCHEMATIC DIAGRAM
(Parts list on pages 27, 28, 35, 36.)
(This schematic diagram may be modified at any time with
development of new technology.)
Notes:
e $701 : Stop switch (stop) in “off” position.
«$702 : Fast-forward/cue switch (ff) in “off” position.
© $703 : Rewind/review switch (rew) in “off” position.
¢ $704 : Playback switch (play) in “off” position.
° $706 : Record switch (rec) in “off” position.
e $707 : Pause switch (pause) in “off” position.
¢ $708, 709 : Dolby noise-reduction switches in “off” position.
Petes Dolby NR . |
$709: Dolby NR B
¢ $710 : Multiplex filter switch (MPX filter) in “off” position.
° $711 : Timer switch (timer) in “off” position.
© $712 : Automatic-record-muting switch (auto rec mute) in
“off” position.
© $713 : Counter reset switch (counter reset) in “off”
position.
©$714 :Memory-stop switch (memory stop) in “off”
position.
¢ $715, 716 : Peak hold reset switches.
has auto ]
$716: manual
¢$717 : Power switch (power) in “on” position.
° $971 : Mode switch in “off” position.
¢ $972 : Cassette half detection switch in “off” position.
© $973 : ATS (CrO.) switch in “off” position.
e $975 : Rec inhibit switch in “off” position.
° S976 : ATS (Metal) switch in “off” position.
¢ 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 signa!
condition and playback mode with volume control at minimum
position otherwise specified.
( | ener Voltage values at record mode.
For measurement us EVM.
¢ (important safety notice
Components identified by A mark have special characteristics
important for safety. When replacing any of these
components, use only manufacturer's specified parts.
¢( m—mmee= ) indicates +B (bias).
¢( mam m ) indicates —B (bias).
o( ) indicates the flow of the playback signal.
¢( <> ) 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.
RS-B465
Mi WIRING CONNECTION DIAGRAM
AC IN ERASE HEAD R/P HEAD
T6OI
( Power
transformer )
SLD WHT
WHT RY
BP om CNG
Bh > omc SEF
abun —
POWER SUPPLY
P.C.B.
LINE OUT] [LINE IN |
——
o Litt 26-1] z
go
E=3)
i
BJ motor P.C.B.
a
Zz +
>
Oo
2s oo
pales,
FL DRIVE P.C.B.
CAPSTAN
MOTOR CPll
POWER SWITCH/
HEADPHONES P.C.B.
iw
[7-----1J
w7
LETT TTT
J971 BPS
REC
LEVEL P.C.B
LJ
PHONES REC LEVEL