Sony TC-204SD - Component Diagrams

3-2. SCHEMATIC DIAGRAM
C102
41/25V
Q109 ZR
2SC1362 ioe
101
Mic
R102 15k
Clol
oot
“a
i Paes 120k
R104
2.2k
ROG 3Z0K(NI| EV
IV
RUIZ. 50k (A)
UNE IN | R283
120k
(R)
| [AUDIO AMP BOARD] L-CH
QiOl 281362 al02 2SC632A
TC-204SD
TC-204SD
Q106 2SC634A
{ SWITCH BOARD ) L-CH vader
>
$5-1 oN
ee S31 us ONO = OFF
EQ DOLBY NR OFF (FILTER OFF)
CrO2——-Fe-Cr =-NORM oY =— ON-OFF
(FILTER OFF)
ok: age, aN
| R395
47k
ey ~ "Thes 100K $ 1 Y—di0s ascé32n Q104 25C634A “0105 2scesaa bide 1122
7 1
C10 CX-064 at to r 01 IT40
859 1/50 Lt
RI68
3.3k | 120k
RIG4
t
cll4 0056
CIS5 10/16V
——_{h-
C4501 R198 2.2k
C140 47/10V
eT
R
cur
68
Ci
0.0033
Cu9 0.0022
(yr
ci2e | Ct)
OA7/S0V| O6v-”
ate — |}
ort TSS,
% C138. 82p 5OOV | PLAYBACK y¥V
Rrustecon
|
|
Se"
i
:
S-4
S83
QI08
R308
S| REC/PB_ 2108 2scs344 “i
PLAYBACK PECORD
0.01/100V
EH 301
EFI35-36 4 C306
3 0.015
‘a | 100vV
{RO
LINE OUT | RIO
Kk
R310
22k
RI3t
18k |
Sh 3I0 1740
a
R315 R316
33k
33k
RI45 47k
RIB} 20k] (8)
stor LINE OUT
s60}-1 PRYBA
33)
(IG
201 wi
mic(RL
C201
001 Ae
' L
R-CH ‘
| CMIC_AMP_BOARD }
Note:
©
All
capacitors
are
in
uF
unless
otherwise
noted.
50
or
less
e
working
volts
are
omitted
except
for
electrolytic
type.
e
p=
wuF
e
e All resistors are in 2, % W, unless otherwise noted.
k=1,000 M=1,000k
Rooo
Rooo
°
ook = ookQ
(2%)
(42%)
e
REF NO-- FROM 201
RPH 201
PFI45- 36024
i; lea AS L-CH )
=
© jew
R392
120
(ew)
R393
270
(vew)
13
(N) indicates a low-noise resistor.
wumme indicates B+ circuit.
Voltages are DC with respect to ground unless otherwise
noted. Readings are taken under no-signal conditions with
a VOM (20k9/V). Readings in [| | are in record mode.
Voltage variations may be noted due to normal produc-
tion tolerances.
AC voltage readings on bias oscillator circuit are taken
with a VITVM.
e@ Switch Mode
%* REC/PB (L-CH)
%* REC/PB (R-CH)
DOLBY NR
TAPE SELECT EQ
LIMITER
* REC: record
PB: playback
~ §2-9
Q603 2SCI76I Q602 2SC1363
302
I} HADEPHONES
"309 0.00!
Note:
Serial No.
E Model 17651 and later
AEP Model 15651 and later
UK Model 17151 and iater
oe 4s Note:
i Serial No.
E Model Up to 17650
r AEP Model Up to 15650
UK Model Up to 17150
I
1 7301
t POWER
TRANSFORMER
a
03032 ne
BRN HOV
4
ON(FILTER 0
Lu en
299 | br nee
PU PB DOLBY NR $3-2
<VOLTAGE CONNECTION)
TAPE SELECT BIAS
TIMING
MUTING
MOTOR
POWER
en