Sony TC-FX4 - Page 22

A
4-2. SCHEMATIC DIAGRAM
— System Control Section —
@ See page 19 for the semiconductors lead layout.
@® Refer to page 18 for voltages and waveforms at
the terminal of IC401.
{REC/PB BOARD]
M601
ONE4100A
CAPSTAN MOTOR
es
Q413_ 2SC1363
SWITHING
R429 100
WW
[MD BOARD Jor
sy 402 250809
. REEL MOTOR DRIVE
TC-FX4
TC-FX4
D E
{SHUT-OFF BOARD]
fe [ors ar |
HEAD
PHIO2 cD
(3) ~(K) SHUT-OFF Io<
had Papas GE | , , So
m6o2 | | agen aoe |
RFSIO
R603
Q60!
2SC1364
$60!
$602
REEL
MOTOR
tte
270)
DET
AMP
ACCIDENTAL
|
ERA
SURE
CASSETTE
”) 0601 ar
ie
ig
nS
aaa
GV 47/6
b:2.6V
pg
©
ER: 6.2V
a = os $ 4 _ =
0403,404 288808 0407 2SB734 eae aa Te
REEL
MOTOR
DRIVE
HEAD
PLUNGER
KICK
30V
D417 1T40
TO AUDIO AMP
circuit @
R422
10k
1C403 pPC339C
VOLTAGE
COMPARATOR 58V
CNy603
REMOTE
ie
R419 LR4IG
C4I7 cals
0.022 - 0.0!
R418
39k
1C402 NJM2903D
VOLTAGE COMPARATOR
D413—415
1$1555
D414
PM6OI
OFF
ay |
Q408 2SC1364 D412 = 1S1555
SWITCHING
Q409 2501020
PLUNGER ORIVE
o4l2
Q410 2SAl026
LINE MUTING DRIVE
Q4lz2 2SA1026
SWITCHING
Vv
30V
1@1@ @
e@
20V
/
4, R438
eH 47k
(4.5V)
Y
D419
1$1555
Q405,406 2SD1012
REEL MOTOR DRIVE
>
“AEP MODEL |
$435 |
1C40l| MSMS836RS
CONTROL
REC LAMP
R428 2.2k
—w—
9.3V
re
a
,
L997
0416
D416
|
$806 $805 $803 $80!
i @®@ » gs
{LED BOARD]
$804
»
a
oa
AL
LL
RRR
|
$807
1$1555 °
$802 (RED) (GRN) (ORG)
« @r> n
eO)-—9)
w
a = a Po w , a
s Ss ce a = a Ss 2 = w co = am]
= : 2 n wi =
3 Ss 5 4 = a = a s
= = 2 2 a ied =
= = w oO = 2g
= ra a = : = w a
w rs = ‘al a i2)
e < =
=
PAUSE LAMP
REC MUTE
FWD LAMP
SHUT - OFF
(@®) COUNTER
| =
—~24—
30
REC MUTE: 4,5v
ae
D410 IT40 D418
0401- 408
10E2
Q401
250880
a4i4
281364
REG.
- 20V
SV
@ 70 wete
[LAMP BOARD
PLI
tr (3) METER |
I
9.3V
TO AUDI
CIRCUI