Sony TC-150 User manual

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Power Requirements:
,Power Consumption:
Power Output:
SPECIFICATIONS
6V de, four baneries, size AA, (IEC
Designation R-6),
Rechargeable Battery Pack BP-28
(optional) or 12 V car battery with
SONY Car Battery Cord
DCC·127H (optlonal)
120 V ac, 60 Hz
with SONY AC Power . Adaptor
AC-9W ................ .. .... for USA Model
with SONY AC Power Adaptor
Fast Winding Time:
Fraqu8ncy Responsa:
Input:
AC-9 ......................... for Canadian Model Output:
220 ~ 240Vac (100, 110~ 127V
adjustable), 50/60 Hz with SONY
Power Adaptor
AC-4 W (optional .) ...• for E Model
110, 220 V
ac adjustable, 50/60 Hz
with SONY Power Pack
AC-456C (optional) ...
for AEP Model
240 V ac, 50 Hz
with SONY AC Power Adaptor
AC-15 (optional) ...... for UK Model
6W (with AC.:9W or AC·9)
9W (with AC-15)
9VA (with AC-456C)
7.4
VA at 50 Hz (with AC-4W)
6.SVA at 60Hz (with AC-4W)
360mW (max.I
(USA, Canada, E, AEP Model)
320 mW (max.) (UK Model)
Q,ther Jack:
Battery life:
Dimensions:
Weight:
Speaker: 5 cm (2 inches) dia.
Recording System:
Tape Speed: 2-
track 1·channel monaural
4.8 cm/sec (17/s ips)
US Model
Canadian Model
E Madel
AEP Model
UK 11/:odel
Approx. 1 min. 50 sec. with SONY
Cassette C-60
90 ...... 10,000Hz
(USA, Canada, E, AEP Model)
150~
8,000 Hz (UK Model)
M!IC .....•...•.......... 1 ( mini jack)
se , nsitivity 0.2 mV (- 72dB) ·
for low impedance microphone .
EARPHONE ....• •. 1 {mini jack)
8 n earphone
or load impedance
10
kfl or higher
REMOTE ....•.•••... 1
Approx. 2.5 hours of continous
recording
from the built- in
microphone with SONY Super
Batteries, size AA
(IEC Designation R-6)
Approx. 174(w) x 29.S(h) x 113(d) mm
67/s (w) x 11 /4(h) x 4½(d) inches
Approx. 760 g (1 lb 11 oz)
I 0dB=0 . 775V I
SONY.
SERVICE MANUAL

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TC-150/B. BT-50
1-1. BLOCK DIAGRAM
e
J t nVi g
MI C
RPH -
REC : RECORO
PB : PLAYBACK
PREAMP
01,2
SERVICING NOTE
circuit board
€)
Before attaching the lower panel, confirm that portion G
is detached from portion €)
SECTION 1
OUTLINE
SI
REC / PB
PB-R EC
AGC
03
l-- _ _ _.
02
._.....i METER AWP
06
~
S5 MUSIC/SPEECH
SPEECH-MUSIC
METER
SW IT CHING
05
S4
---<1-- --o----"- BATT
V
S
1- 4
9-,.
CHECK
S2 POWER
·.•
BI AS OSC
04
RIPPLE FILTU!
Q7 (
TUR NS ON WIO HI E )
PLA YBACK, AIST F ORMRO,
REC000 OR REWIND aITTOII
IS PUSIIEO
r---- -- r=t=~J_~~ ~==- ;~-~~CNJ
MOTOR
Cfl l VER
08
•. . I
. I I
L __ ~--- , -------- ---J
I
I
J3
\-._-1---o--.JI REMOTE
2
S3 S TART /ST OP
L-o--,,n START
t
I> STOP
:n
o----1
R ECHARGEABLE
BATT E RY
BP-28
OC IN 6V
c-i
T
'
-L
o--1
ORY BATTERY
S IZE "AA"
O EC DESIGNATION R-6 I
4PCS, 6V

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1-2. AUTOMATIC
SHUT-OFF
MECHANISM
TC-I
50
mechanism is
so
designed t
hat
it
is
automati-
cally
shuts
tape
tr
ansport
off
at
ta
pe
en
d
in
reco
rd
or
playback
mode
. When
the
tape
comes
to
the
end,
the
tape tension
sto
ps
th
e
tak
e-up reel spindle
from
rotating. This mechanism mechanically d
et
ects
such
During
tape
travef:
D ~
n
©
motor
TC-150/B.
BT-50
st
op
of
the
reel spindle
rotation
a
nd
returns
ta
pe
transport
to
s
top
mode.
This
op
eration
in
playback
mode
is described as
follows.
The
operatio
n in record
mode
is
the
same
as
in
playback mode.
0 0 0
@pulley
be
;
-
.
..
,
.
.
®
dri..,.
belt
@
friction
pullr,,
■
The
motor
rotatu
the
frictio
n
pulley
clockwi#.
(
O,wat
l
on
or<Nr:
@ -
@)
II
The
pin
of
the
shut-off
/
rAr
A
mow,
only
within
portion
O
b«:au•
th•
clockwiSII
fore» is
applied
to
the
detect•
ing
lewr.
(!)
intermediar.,
pulley
3 -
second
gar
@ $
pind
l•
drum
,_.,
,_/
cam
{Jtlllf
■
Th•
intermed
;.re
pulley
rotatn
the
cam
gnr
through t
he
second
gear.
,.

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yc:.1so;a.
BT-so
.::
__________
_____
_,
■
·
Th•
friction
pullev
applin
clockwi,a
force
to
the
detect-
i
ng
,_
through
coil
spring.
When
tape
stops traveling
at
tape
end:
1!1
~
ID
■
The l
ock
p
late
rele
ase$
the
forward
button.
f
orward
button
■
Wl'len
the
tape
stops
tnwtling
-
at
cape
end
,
the
frict
i
on
-p
ull
ev
dlrectlV
connected
with
the
take-
up
rH
I sp
indl
e
stops
mov
ing. The
friction
pullev,
th•efor11,
stops
to
a
ppl
v
the
clockwi1t1-
forC#I
to
the
detecting
/11wtr.
■
The
pin
of
the
shut-off
/ewtr
A
ptah••
the
dettcting
le
ver
a,
.
shown
below.
4 -
f
orward
button
0
' I
' _
.,,
axi
s
•
l
fricti
on
pu
ll•v
detecting
le
llflr------
shut-off
,_
A-
■
The
shut-off
ltltlW
continua
ID
ret:ip,
~

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l ock plate
cam gear
II The shut-off lever S pushes the
l ock plate.
shut-off tev,r 8
■ The shut-off /aver geer con•
nected with the shut-off lever
A on the axis • · mown to·
,n~~ with thtl small gear.
axis.
■ The pin goes ro portion Ci)
through portion- 0 .
5
TC-150/B. BT-50

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TC-150/B.
BT-50
UPPER
PANEL REMOVAL
SECTION 2
DISASSEMBLY
Note: Use
the
same
co
lo
ur
screws as t
he
pane
l's.
(Silver screws for TC•lSO, BT-SO)
B
lack
screws for TC-150B
LOWER
PANEL REMOVAL
Se
sure
to
use
the
screws specified
ebo
ve.
- 6 -
CASSETTE
LID
R
EMC
No
te
: To avo
id
losint
bes
ure
to
close
CIRCUIT BOARD REI\
@ Circ
uit
Board
....

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•
VAL
@
Remove
the
cassette
li
d.
0P2x4
; toggle springs attached
to
the
cassette lid,
:
the
cassette lid
and
the
n remove
it
.
IDVAL
(})
Screw, circuit
board
7 -
TC-150/B.
BT-50
REEL
PANEL
REMOVAL:
G)
and @
MAIN
CHASSIS REMOV
AL
(
PART
1):
@
MAIN
CHASSIS
REMOVAL
(
PART
2)

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1C-150/B.BT-50
Note:
• Do not remove th is screw usually.
•
If necessary to remove this screw, do not
lose the spring attached by this screw in-
s id e the case.
MOTOR REMOVAL
@ Motor
SHUT-OFF BLOCK REMOVAL
© Lift the flywheel retainer. ,:;\
0_;P2x4
Lever (A) Ass 'y, forward
- 8 -

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SECTION 3
ADJUSTMENTS
AND MEASUREMENTS
3-1. MECHANICAL ADJUSTMENT ANO MEASUREMENTS
3. Torque Measurement
TC-150/B.BT-50
1. Flywheel Thrust Play Adjustment
-playback mode -
de ammeter
Keep the set horizontally and confirm that the
B+ voltage is 5 Vdc.
t
6Vdc
-terminals
of the
battery case
1. Loosen two adjustment screws.
2. Tum one of them clockwise carefully.
3. Stop turning it when the current suddenly in-
creases
and back it ¼ tum.
4. Adjust the other screw in the same way as
step 2
and 3.
5. Secure the adjustment sc.rews with locking
compound.
adjustment screws
2. Pinch Roller Pressure Measurement
-playback mode -
Read the scale when the pinch roller just touches
the capstan and starts to tum.
Permissible reading:
200 ~ 300 g (7 ~ 11 oz)
Torqu e SONY To,que Met e,
Forward CQ!OlA, CQ102A, CQ!03A
Fast Forward CQ201A
and Rewind
Cue
an d CQ201A
Review
4. Wow and Flutter Measurement
Permissible value: within 0.38 %
9 -
Pe,miuibla Rea ding
25 -45g·cm
(0.35 - 0.63 OZ·inch)
over SS g•cm
(0. 76 oz·inch)
over 55 g·cm
( 0.76 oz·inch)
·"

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TC-150/B.
BT-50
3-2.
ELECTR
I
CAL
ADJUSTMENTS
PRECA
UTION
l.
Clean
the
following partswithalcohol moistened
swab:
Record/Playback h
ead
Erase head
Capstan
Pinch roller
Rubber
belts
Idlers
2. Demagnetize
the
record/playback head
with
a
head demagnetizer.
(Do
not
bring
the
head demagnetizer close
to
the
erase head, and
do
not use magnetized
screwdriver
for
adjusting).
3. After
the
adjustments, apply
the
locking
compound
to
the
adjusted parts.
4.
The
adjustments
shou
ld
be
performed in
the
order
listed in this service manual.
5.
The
adjustments should
be
performed
with
the
rat
ed po
wer
su
pp
ly
voltage
unle
ss
othe
rw
ise
specified.
1.
Tape Spe
ed
Adjus
tm
e
nt
Setting
s:
Power
sou
rce ................ 6 V
de
Pro
ce
dure:
1.
Mode playback
w.,.
49
SptJed
checker
(S
ONY
LFM
-
30}
(
JkHz
,
OdB}
or
digital
frequency
coun
t
er
~-
S8t
t4====
~
J'
EARPHON
E
Speficications
I)
I
Speed
checker I Digital frequen
cy
counter I
li---±3-
%
----t
l
--29_1_0
_
H_z_~-30_9
_0_
H_z_
---t
l
2)
Fr
e
quency
difference between beginning and
end
of
tape should be within I
%
(
30
Hz).
2.
If
the
above specification is
not
satisfied, adjust
R40.
QR
40
0
-
10
-
,,

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2. Record/Playback Head Azimuth
Adjustment
Procedure:
I.
Mode playback
P·4·A81
(6.3
kHz,
-10
dB)
VOM
: 0
.2
5
~
2.5 V ac range
811
(
2W)
set
+
EARPHONE
2. Turn
th
e adjustment screw for
the
highest
VOM
reading.
Not
e:
Several peaks may appear, take
the
highest.
adjustm
ent
screw
Note:
When 0.25
~
2.S
V
ac
range
is
not
available
on
the
VOM, use a network as
shown
belo
w.
811
(2W)
3µF~
TOµF
TC-150/B.BT-
3. REC/BATT
Meter
calibration
Setting:
Power source
3.6
V
de
Procedure:
I.
Push forward
button
without
casse
tte
.
2. When power source is 3.6 V de,
the
pointershould
indicate as shown below.
~
pointer
3.
If
necessary, solder *
1
and * 2.
Soldering Portion Pointer
nothing
-
mark
*
1
t
•land•
2
+
mark
0
,.
.
- 11 -
..,,

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.-150/B.BT-50
4.
Record
Bi
as
Adju
stment
Procedure:
I. M
od
e
af
osc
record
a ~:
:..
e~
:.
u
..:
a~
:..
0
.2,
,.-
'~~
--'
s
et
b
lank
t
ape
SONY
CS
·10
1
MIC
(1
)
333
Hz }
(
2)
15
0H
z
-80d8
(
17µV
)
(3)
6k
Hz
2. Mode ............................
playback
VTV
M
re
cord
ed
po
rtion
se
t
1
0kfl
E]
E
ARPHONE
Recorded
signa
l
VTVM
reading
33
3H
z
Adjust
VOLU
ME
co
ntrol
for
-10
dB
(0.25
V).
150
Hz /
a.t.{/
(L/
(LLLL.(LL,(,,(£.
(.
,
6
dB
allow
ab
le
ra
nge
6kHz. //7/Tl/7/l7l
ll
ll7lllll77>..
15
0Hz
333Hz
6kH
z
If necessary, adjust
by
changing t
he
sol
de
ring
portions (*
I,
* 2
an
d
*3).
Soldering Portion
6k
Hz Level
..,
I
down
• 2 t
...
3
up
MEMO
··
············
···
·
·································
·
··········
·
··················································
····
······
·······
···
········
····
·
··
···············
··
·············
····
···
······
·········
··
·
··
····
·
····
·
··
··
·
·····
·
······································"··············
·
·········
..
,,
...
.....................
......
.......
.....
...
..
..
...............
.
..
..............................
.
..........
......
..
.
..
.
....
.
........
.....
......................
••••••••••••••
••••
••••••••••••
••••••••••••••••••••u•••••••••••••••••
•••
•••
••
•
•••••oo••••••••••oo••••••••••
•
•••••
0
-
12
-

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4·1
. MOUNTING
DIAGRAM
-Conductor Side -
C
NJ
DC
IN 6V
(I
NCL
UDING
S3l
RED
SECTION 4
DIAGRAMS
(
S2
POWER
)
TUR
NS
ON
WHEN
THE
PL.AY8
AO<,
FAST
FORWARD,
RECORD
OR
REWIND
BUTTO
N IS
PUSHED
BATTERY
CASE
ORG
TOTAL
CURRENT
PLAYBACK·······-
IO
OmA
RECOR0
·----·
-
·-
115mA
REWI
ND
·
··
·-
- - • I
Z5mA
FAST
FORWARD
---
IIOmA
YEL
S4
rr-
-o-~
--t-s~
BATT
C
HECK
...._"'"°'
a=t.,.,.K-
S5
MUSI
C/S
PEECH
SP
EE
CH
-M
USIC
BLK
SP
e.n
REC:
RECORD
PB
:
PLAYBACK
l~I
-
13
-
6
4
I0
.
65VI
(0
.
7V)
OR
RY
5
45
TC-150/B.BT-50
re,
(
GRYJ
(GRYJ
RED
RPH
PP134-36
*(I
OVAC
l
2 8 2
1

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-
~T-50
TC-150/B.BT-50
c-
100
2s
MOTOR
D-221
F
(
INC
LUD
ING
FG
COIL)
WHT
IOV
-
-----,;;"i,vi"
_____
______
____
___JBRN
(G
RY)
PH
P134-36
2
MIN
MAX
R43
IOk(C)
IPB
VOL!
7
(DC
RESISTANCE)
lcil~
'a
i!
O··
3
3 2
t,
0.001
YEL
-
14
-
01,
2 2SC632A
03,4,6,
7 2SC634A
f
•-0:
B
05
2SA678
t·
©:'.
08
2SC1474
'
-©:'.
E C
s
D1
,
2,
3,
4,
5
1T40
"-
D
IC 1 CX-170
IS !41312111098
~
:::::::1
1 2 3 4
561
fT
op
l'WWI
IC 2
BX
-
295
,.
Q
1
234~
(
M,t
;ntf~
..,,
Note:
• - :
8+
pattern
••---.
:signal
path
•
"'
...:

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TC-150/B.BT-50
TC
4-2.
SCHEMATIC
DIAGRAM
--------------------------
01
2SC632A
OI
IT
40
,--~---~---;:.
PRE
•••
·
AMP::::;;;:::;;::::::::~:;!;;::::::::::~
02-2SC632A
5.3V
PQP
UD
.,~
ECM
~--:>----
---
t11
4
-
1._lio
......
v
I
4
.sv,1
R6
2.2k
\Pe
voL!
C-0025
~
0
VJ,·
.
::.i
!C3
·
II/
SW)
RI
,,.
33/IOV
:
rst
,---
·
U---.......,,-•11•---!--.0---
I
1,
8k: $ C2 QI
I
fl/SW)
R43
MlN
~
W~~
~~~~.~
l~A~V~
--~--~.~-1
~
~
J3i
C9
ca
,!7P
o)
~E
~3/IOV
II
~3.5';
Cl2
1.
5/20
.___-<;I--
- -
---'
I.8k
f
.--
1
C7
I,4V
~
Rl3:
0
(
C)
i.:
>O.z.l
~
!13313v
02
:~
18k
,
l=
0,001
R3
I
Ok:
Sl-2
R7
47k(l/8W)
RIO
____
.......
_...J,IJ.___.......,
_____
...
33
CS
(I/SW)
---
~_f
"J
i--
OI
_._
__
------,
.,,
ClO
~
!J
tRII
:
Rl
4
C4
: :
6~~
:~
RB: : •
•01
:~
/i7~
W)
I.6k
0.0047 (II
SWJ
33k
• V
II
C6 Q0047
03
rc20
a)
l/
6.3V
Rl2
2.2k
-
"
Q3
2SC634A
SI
- I
S1
- 4
S1-3
AGC
~
.~~-~
S
H;
RPH
PPt34-36
-
J!P_--o--...L.....---1,-...-------' SI
REC
/
PB
Q6
2SC634A
Q5
2SA67
8
~
P8-ilEC
04,5 IT40
METER
A
MP
METER
SWI
T
CHI
N
~g
:
?:~
.R28
33
',
~ ·
·\'
)
J>
C21
0.01
/
\
/
:
.•
.
~R33
(
0.65Vl
R36
1•
R30
I
~..
(0:IV)
-
5.
lk
(1,
...,
.
05
◄
_
(0.035V)
r.M"'I
"""'
I
,
..
. I
Q4
2SC634A
BIAS
OSC
(
0,03V~),._~,-...--~'-I
r-
·)
n.._.
I
ll
(RE
-
...
\!::::-
...
<Um
L!
(
e.mA)
,ii;DS
07
~
C25
R'31
06
1
2k
3,3!J.OV
{O
i::
'
t'h
(0.3V)
ER37
1
50
..,__k<s
.
aVJ
~l
.~•
-:7
I
i
◄
C24
/
ME
-
4.7/l&J
I
S4
BATT
<
C?>REC
/
BA
TT
,.
0ECI(
..
._
Q7
2SC634A
RIPPlE
FILTER
-----------------------L
Note:
• All
c:apaciton
are
in siF unlessotherwise noted.
50
or
les
worki119,
volts
ere
omitted
except
for
electrolytic.
typlt.
p-~
-
• All resistors:
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k •
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1,000k
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•
In
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connect
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R2
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with
~
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1.
•
"1r.
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dleuit
ground
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1 5
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~
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• Voltages are DC w
ith
respect
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noted
. Rltlldingt
are
taken
undllt' no-signal
conditions
w
it
h
a VOM (
20
kO/V)
.
( ):
rtcord
< >:
playbec:k
no
mark:
common
• Voltage' variations.
may
be
noted
due
to
no
rmal
P"oduc-
tion
tolerances.
•
Radings
indicat
ed
by*
are taken
on
VTVM.
•
•

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BT-50
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ECM:
Electret
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EH:
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Heed
M:
Motor
ME:
Meter
PB:
Playback
REC: Record
RPH:
Record/playback
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5-1.
SECTION 5
EXPLODED VIEWS
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beca~
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required
for routine service.
o
All
setews are Phillips (
cross recess)
type
unless
otherwise
noted.
(-),.
slotted
head
o
(
□
on
shows
the
number
of
coils
in
spring.
/

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TC-150/B.BT-50
5-2.
1·5al·582.(J(1 ct)
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..

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