Sony TC-580 User manual

Power
Requirements:
Power
Consumption:
Track System:
Reel Size;
Tape Speed:
Recording Time:
(with 1,800 ft, tape)
Frequency
Responsa:
Signal-to-Noise
Ratio:
Flutter
and Wow:
AC 160 V, 110 V, 120 V, 127 V, 220 V or 240 V
50/60 Hz
90W
4-track stereophonic and monophonic
7” (18 em) maximum
7/2 ips, 3 344 ips, 1 7/8 ins
{19 cm/s, 9.6 cm/s, 4,8 cm/s)
Tape speed
7 % ips (19 em/s} 1.5 bes
3% ips (9.5 cm/s) Shrs
(with SONY SLH tape}
20~ 30,000 Hz at 7 1/2 ips (19 cm/s)
20~ 20,000 Hz at 3 3/4 ips (9.5 cm/s}
(with standard tape)
20~ 25,000 Hz at 71/2 ips (19 emis}
30~ 17,000 Hz at 3 3/4 ips (9.5 cm/s}
30~ 9,000 Hz at 1 7/8 ips (4.8 cm/s}
56 dB (with SLH tape}
53 d8 (with standard tape)
0.06 % at 7 1/2 ips (19 om/s}
0.10 % at 3. 3/4 ips (9.5 cm/s)
0.20% at 1 7/8 ips (4.8 cm/s}
SPECIFICATIONS
4-track stereo 4-track mono
3hrs
6 hrs
Recording Bias
Frequency:
Inputs:
Outputs:
‘Overalt
Distortion:
Semiconductors:
Dimensions:
Weight:
Approx. 160 kHz ,
Two MIC inputs .
impedance:
Maximum sensitivity:
Two AUX inputs
impedance:
Maximum sensitivity:
REC/PB connector
Impedance:
Input level:
Two LINE Outputs
Load impedance:
Output level:
HEADPHONE Output
Load impedance:
Output level:
1.2%
low impedance
0.2 mV (—72 cB}
100 kQ,
0.06 V (~22 dB)
10kQ
17.4 mV (33 dB)
100 k&2
0:775 V (0 d8)
BQ
12.6 mV (-36 dB) at
1 of level switch
31 mV {28 dB) at
2 of level switch
45 transistors, 1 integrated circuit, 27 diodes
17 ew) x8 Ve
(446 x 225 x 460 mm)
43 tb (19.5 kg}
(H} x18 1/8" (0)
ON Ye
SERVICE MANUAL

TABLE OF CONTENTS
Section Title Page
Specifications... ...-..-% 1
4. GENERAL DESCRIPTION
1-1, Block Diagram... . . - 3
1-2, Major Parts Locations . 4~5
1-3, Switch Location. . . . . 6
2. DISASSEMBLY
2-1, Cabinet Removal ... . 7
2-2, Head Deck Removal. . . 8
2-3. Record Equalizer Circuit Board
Removal... ...----005 8
2-4, Reverse Switch Circuit Board
Removal ........--- a5
3. ADJUSTMENT PROCEDURES
3-1, Mechanical Adjustments... .. . 9~18
3-2, Electrical Adjustments .... . . 19 ~ 32
4. DIAGRAMS
4-1. Schematic Diagram
4-1-1, Audio Amp. and Bias OSC
Circuit... 2... 055. 1 BBN 84
4-1-2, System Control Circuit ..... - 35~ 36
4-2. Mounting Diagram
Be ae
Section Title Page
4-2-1, Record Amp. Circuit Board . . . . 37~ 39
4-2-2, Record Equalizer Circuit Board . . 40~ 41
4-2-3, Playback Amp. Circuit Board . . . 42~ 44
424, Bias OSC Circuit Board ...... 45~ 47
4.2.5. Servo Control Circuit Board. . . . 48
42-6. Relay Circuit Board... ..... 49—~ 51
4-2-7. Power Supply Circuit Board. . . . S2~ 54
42-8. ESP Circuit Board... .....- 55 —~ 56
4-2-9, Reverse Switch Circuit Board . . . 57
4-3. Level Diagram. .....- 204s 58
5. ELECTRICAL PARTS LIST...... 59~ 64
6. EXPLODED VIEWS
6-1. Packing .....- Sidh Ad ES 65
6-2. Cabinet - top view—....,. . 66
6-3. Head Deck — top view~ .... . 67~ 68
6-4. Amplifier Chassis — top view — . . 69-~~70
6-5. Chassis — top view —(1) .....71
6-6. Chassis — top view - (2) .....72
6-7. Chassis — top view -(3) ... - . 73
6-8. Chassis — bottom view — .....74
7. HARDWARES........ (ae Bob dS
Hardware Nomenclature .... . rarer at)

SECTION 1
GENERAL DESCRIPTION
BLOCK DIAGRAM
V1.
sor0yy
joy
109AH
‘A000
44
804-9020
tw) ic Nie
Nem
LOLD
Ee eer |
inz~ OMe)
ONIHOLIMS:
0
|
aeov
|
ty
4n0
hit
9060
209d
00.
prousyes
VEE
9095
tosiva|
plovelos
UITIOWHINIE
OLS
't4
wi
ow
NIL
0g
23
coer
a
MOHD
dT
908
‘201
6010
1H
F
1
oN
2011010
by.
Sa
dole
238
ane OW
Lt xv
35

1-2. MAJOR PARTS LOCATIONS
Cabinet — Top View —
X-34970-26 X-34970-46 X-34970-26
ree! table ass'y knob assy, ree! table assy
| AUTO REV i
| | X-34970-81-1
X-34970-42 _ree/ panel ass‘y,
cabinet assy complete
X-34970-47 L
cover ass‘y, head ~~ i X-34970-45
X-34970-46
R
|
button
ass’y,
REC
knob assy, TT 3-497-195
TAPE SPEED ———— button, REW
1-514-867 3-497-196
switch, lever (S108) ~~ —-— button, FF
TAPE SELECT $497.192
1-514-768 fe) 1 ————- button, STOP.
switch, lever (S7 “ee _ a
HEADPHONE
LEVEL
sa
en
fener
REV
3-497-193
1-507-282
jack,
binaural;
Me
at
button,
FWD
HEADPHONE (J104) X-34970-50
S102)
1507-281 | 1102)
jack, MIC :
R(J202) —--—>
X-34970-50
knob assy, volume
control; AUX (L)
X-34970-50
knob ass‘y, volume —--—-----— st |
control; MIC (L) '
1-524-082-1171 omteas _
meter, VU (L)
|
|
i
i
Cabinet — Side Views —
171-509-359
connector, REC/PB
(J705)
3-497-237 _t
terminal, ground 4
1-507-142
jack, phono;
AUX IN
(J101, 201)
(S103, 203)
knob ass‘y, volume
—~ control; AUX (R)
—- 1-514-866 switch, lever; power (S603)
X-34970-50
| i a KNOB ass’'y, volume
| control, MIC (R)
i : i 1524-08 2-11
\
meter,
VU
(R)
[ree eee ee SOG) 1-514-836
a S705) switch, lever; MONITOR
iz
1-509-427
__ socket, power
voltage selector
(VS601)
171-509-341
_.. connector, AC
OUTLET |C/VJ601}
171-533-048
i—~ holder, fue

Chassis — Top View —
171-514-706
switch, leaf;
PLAY-FF,STOP
(S613)
171-514-707
switch, leaf;
PLAY-FF,STOP _
(S620)
1-454-075
solenoid, plunger
{(PM601); PINCH ROLLER
1-514-864
microswitch,
AUTO SHUT-OFF (2)
(S618)
8-828-629-20
head, record/erase
(ERP102-2902)
8-829-142-20
head, playback
(PP 102-4202)
1-222-497
resistor, variable;
30 kQ1(D), R131
(AUX-L)
1-514-864.
microswitch, PLAY, FF-STOP
S614 (upper)
S605 (lower) 171-514-633
_. switch, lever; AUTO
REV (S617)
1-514-864
microswitch, PLAY-FF,STOP
~S610 (upper)
S602 (lower)
1-5 14-864
microswitch, PLAY-FF, STOP
S604 (upper)
S612 (lower)
1-514-864
. microswitch, AUTO (7)
SHUT-OFF (S609)
Y¥-20410-12-9
counter, tape index
8-828-629-20
head, record /erase
(ERP102-2902)
8-829-142-20
head, playback
(PP 102-4202)
1-222-497
resistor, variable;
30 kQQ.(D), R231
(AUX-R)
3-497-207
pinch roller
1-222-498
resistor, variable;
10 kX2(D), R135
(MIC-L)
1-222-498
resistor, variable;
10 kS2(D), R235
(MIC-R)
Chassis — Bottom View —
8-836-624-07
motor, UC-624K
X-34970-65
mounted circuit
board, power
supply
1-454-074
solenoid, plunger,
DIRECTION CHANGE
(PM603)
1-441-729
transformer, power
8-836-624-07
motor, UC-624K
X-34970-66
mounted circuit
board, relay
X-34970-68
mounted circuit
board, servo contro!
X-34970-67
——— mounted circuit
board, ESP
X-34970-62
—. Mounted circuit
board, record equalizer
TOE
i
X-34970-61
mounted circuit
board, record
amp.
X-34970-64
mounted circuit
board, bias osc
X-34970-63
mounted circuit
board, playback amp.

1-3. SWITCH LOCATION
S614 (upper side)
PLAY,FF-STOP switch (4)
S605 (lower side)
PLAY,FF-STOP switch (2)
|
S613
PLAY-FF,STOP—
switch (3)
S620
PLAY-FF,STOP __.
S610 (upper side)
PLAY ,FF-STOP switch (3)
—..- S602 (lower side }
PLAY,FF-STOP switch (1)
S604 (upper side)
PLAY-FF,STOP switch (1)
S612 (lower side)
switch (4)
S618
AUTO SHUT-OFF ——
switch (2)
$607 =
FF switch (1)
S619 (upper side)
FWD-REV switch (2)
S601 (lower side)
FWD-REV switch (1)
PLAY-FF,STOP switch (2)
_. S609
AUTO SHUT-OFF switch (7)
_ 8615
PLAY switch (2)
__ S616
PLAY switch (3)
___ S608
PLAY switch (1)
S606
~— STOP switch
S617
——“" FF switch (2)

SECTION 2
DISASSEMBLY
2-1. Cabinet Removal
-x——-—~- head cover
SONY,
\Neaeee 4
® B3x8 |
(Black) :
cere! panel
@®B3x 10
Go (Black)
volume control ———x | 5 ! OB3x 10
knob . , f (Black)
(4 pes.)
O-<——ornamental washer
“——— ree! pane! washer
rubber washer
/
/
/
‘ \
\ @ RK 4x 50
washer
cabinet
t
os
|
ee washer
GO Ph 4x14

2-2. Head Deck Removal
L: Remove the FWD and REV lamps.
2: Remove the five screws shown in Fig. 2-2. Lift
off the head deck.
lamp~-— lamp
(for REV) (for FWD)
Fig. 2-2. Head deck removal
2-3. Record Equalizer Circuit Board Removal
= © PSW3x 8
Fig. 2-3. Record equalizer circuit board removal
Note: After reattaching, make the equalizer switch (S107)
position adjustment (See page 15).
2-4. Reverse Switch Circuit Board Removal
reverse switch e ® PSW3x6
circuit board
|
Fig. 2-4. Reverse switch circu/t board removal
Note: Pay attention not to cut the head lead wires.
CAUTION:
1
Install the playback and bias osc. circuit boards,
after the levers are perfectly hooked to the holes
of the slider of the slide switches.
2) The lead wire of microswitch has a connector,
which is connected to the other lead wire with a
special jig.
If the lead wire is cut or the connector is damajed,
solder the lead directly to the microswitch terminal
with an insulating tape wound around the terminal.
3
Never put the unit upside down on the hard plate
with the head cover removed.The pin of the tape
shifter, the shut-off arm pin, the tension armand
others will be bent because of the weight of the
unit. If it is necessary to put the unit upside down,
put it ona soft cloth with the head cover attacied.
4
When replacing the chassis, cut threads on it wih a
hexagon tapping screw.
Part No.
*7-685-146-31 (for 3 mm dia.)
@P3xs
*7-685-159-04 (for 4 mm dia.)
@®P4x8

SECTION 3
ADJUSTMENT PROCEDURES
3-1. MECHANICAL ADJUSTMENTS
(3-1-18) REC lock pull (3-1-12) brake torque
(3-1-4)
PLAY,
FF-STOP
switch
(S605,
614)
rod
adjustment
adjustment
(3-1-5)
PLAY,
FF-STOP
switch
(S602,
610)
position
adjustment
pa
\
ate \ iL position adjustment
(3-1-3) brake solenoid (PM602)}
(3-1-8) reel table height
position adjustment
adjustment
(3-1-8) reel table height —__ v : pry ie arm bracket position
adjustment
Tents
a7
adjustment
(3-1-20) PLAY-FF,STOP switch —
_(3-1-1) PLAY-FF,STOP (S604, 612)
(S613, 620) adjustment
position adjustment
(3-1-6) pinch roller ae
solenoid (PM601} ~
position adjustment
_-— capstan bearing position adjustment
(See page 21)
(3-1-9) servo control circuit ——~
board position adjustment tape contact check of
scrape filter roller
(3-1-19) equalizer switch (S107)
position adjustment
Wi
(3-1-21) PLAY switch (S615, 616)
position adjustment
/ \
(3-1-2) AUTO SHUT-OFF switch X
(S609, 618) position adjustment (3-1-14) pinch roller
pressure adjustment
wh
(3-1-13) direction change
stopper adjustment
Fig. 3-1. Adjusting parts locations (1)
(3-1-10]) FWD and REV back
tension torque adjustment —
(3-1-11) FF and REW back tension ———
torque adjustment ‘
(3-1-16) FWD-REV switch
(S601, 619) position :
adjustment "
_(3-1-15) direction switch joint
rod stroke adjustment
7
(3-1-18) REC lock pull
8
(3-1-17) record button
rod adjustment
block adjustment
Fig. 3-2. Adjusting parts locations (2)

(10 -FWD, REV, FF,
ape threaded, hold.
3-1-1,
PLAY-FF, STOP Switch (S604, 612) Position
Adjustment
Make the following adjustments by loosening
the two microswitch holding screws, See Fig. 3-3.
After that, apply lock paint to them.
1. STOP mode (Lock arm B is locked)
Make sure that the actuator of microswitch is
perfectly pushed with the plate spring as shown
in Fig. 3-3.
2. FWD or REV mode (Lock arm B is released.)
The actuator of microswitch should not be
pushed by the plate spring at all.
STOP to FWD (or REV) mode
8604 ‘should be released approximately one
second after S612 is released.
— $604
PLAY—FF, STOP switch (omer — S612
tock arm (B)
release
Fig. 3-3. PLAY-FF, STOP switch (S604, 612)
position adjustment
3-1-2.
Adjustment
1. Make sure that the bent portion of the actuator
pin is positioned vertically against the chassis.
If.necessary, adjust by bending the base of the
pin.
2. Loosen the two microswitch holding screws.
Adjust the position of the microswitch so that
the switch is turned ON by the actuator pin at
the position shown in Fig. 34.
3. Apply lock paint to the screws.
AUTO SHUT-OFF Switch (S609, 618) Position
4105
0~0.5mm ,
Note:
Adjust for both AUTO SHUT-OFF switch in
the same way.
AUTO SHUT-OFF switch (S609)
Tighten screw here.
(0~1/64")
/ | Adjust by bending here,
actuator pin |e
actuator pin
Fig. 3-4. AUTO SHUT-OFF switch (S609, 618)
3-1-3.
1,
Fig. 3-5.
position adjustment
Brake Solenoid (PM602) Position Adjustment
Turn OFF the power. Unhook either end of the
spring and loosen the four solenoid holding
screws. See Fig. 3-5.
Push the solenoid shaft to the full with a hand
in the direction shown by the arrow. Adjust the
position of the solenoid so that the clearance
between the timing lever and the lock lever is
0 to 0.5 mm (1/64”). Make this adjustment
perfectly otherwise an unusual noise is produced
because of the vibration of the brake lever.
Hook the spring again and turn ON the power.
Change the mode from FWD (REV) to STOP
and vice versa several times. Make sure that the
unusual noise is not produced. Adjust the
position of the solenoid, if necessary.
Apply lock paint to the screws,
brake solenoid
(PM602)
timing lever
0~0.5mm ,
(0~1/64")
spring
Brake solenoid {(PM6O2) position
adjustment