Sony PS-242 - Schematic Diagram

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A B C
5-2. SCHEMATIC DIAGRAM
[ PITCH CONTROL BOARD] [SPEED SWITCH BOARD]
S|
PLT R Pepe
4 ce ag ee
: cai 0
| [SERVO AMP BOARD) IC3-1 NUM4558D
|
MOTOR
DRIVE
AMP
: | cate be a NS Oe Le [woroR SECTION]
; ' : AAA, ee
L oa |[eain RB 330 | 100k
|
:
*
120
Cl-2
NUM4558D
[$e
ane
|
ICI-| NUM4558D : 2 cx-o6sa | 11, | DC AMP | al
_
SERVO
AMP
SERVO
AMP
[eigen
ea”
fas
|
ae
eece
|
cS
YORFSET|
,
RIG
68k
:
=.
OV
ree
ee
FL.
|
|
da
esorma
0.12Vb—p
3Vp—p
IC
3-2
NJM4558D
Q3
258734
| MOTOR DRIVE AMP MOTOR DRIVE .I5V
oe
5k
(B)
330
(00k
H-M:G
330 330
C8
100 /16V RI7 120 =
E Model | | 5 US Mode! se [oe AEF Model
Replacement Semiconductors : 7 Note:
For
replacement,
use
semiconductors
except
in
(_
).
:
:
|
:
e
All
capacitors
are
in
uF
unless
otherwise
noted.
pF
:
uuF
eer
A
5OWV
or
less
are
not
indicated
exeeHt
for
electrolytics
Note:
The
components
identified
by
shading
and
mark
i.
2SB734,
2SB740
28C1475
CX-065A,
|
uJM4558D,
S1B01-02
SIVB20
HL-300C
,
and
tantalums.
3
A\
are
critical
for
safety.
Replace
only
with
|
CX-065B uPC4558C cathode bscihe side e All resistors are in ohms, %W unless otherwise noted. part number specified. ees
8765 , ? kQ : 10002, MQ : 1000k2a
if
;
[__]
:
panel
designation.
[7] ; adjustment for repair.
2 B+ bus:
——-e==: B- bus.
123 Y 1234
4565 79 (Top view)
@ 6 @. & @
Voltages are dc with respect to ground unless otherwise
noted.