Technics SL-P250 - Page 37

7
ORDER NO. AD8809240S0 SL-P250
Bi
|
AG
Service
Manual
*2s222""""
Change
of
Part
No.
pave
Part
Name
&
Description
Remarks
Compact
Disc
Player
Original
IC101 AN8370S | AN8373S=—s|s SERVO AMP
Le! |
aici: ‘os Pole
ic108
(C108 | ANSS2S__—«|«LMzesoTeM | REGULATOR
(K)...Black Type
penRY euMe (S)...Silver Type
Modification of the Servo Circuit
(C105 108 Deaton | SS
1C501 AN8371S Deletion ae
K
i" | aror | 2sansa7-q | asaisa7astv2 | AP.C.
Note: The SL-P250's servo circult has been modified during its | (x) Pow ‘| aspreezp | detion =|
aad 1a die lGwihg tla! (hese Ge. oie teloie EuroRe. favz | aspizop | bettion |
listed in the following table (next page). The IC401’s (K) (8) Sanea Kingdom. seBieee Deletion
peripheral circuit on the [Bj P.C.B. has also been partially (K) Australia. ater | aspisezP | Deletion S| COC t—<“—ssCSssYSSC( Cid
modified. The Supplementary Service Manual outlines all _—_| (x) (6) | (EG)... FR. Germany. Fares __—'| aseiacp ——'|detion =| SC SCSC~dYSC“(C~*'
Me cate nae been mode tothe atten creat, {2 | (9S) | (EB).---Belgium ave asoiesar [poten PT
D sekenialio; ses bate cue cima sence Maia Holland. Parse | aseia0P ‘| Detet ee
a schematic, see page 42 of the original Service Manual.) (K) (S) France. :
Use the original Service Manual (Order No. HAD880305560), | (W) (2) | Eta [azor, 208 | 2soiee2P ‘| deletion | Ss S—SCidTSCCC~*d
together
With
thls
SUpplomentaly'Selvice:
Manual:
(K)
Asia,
Latin
*
C401:
System-controlling
microprocessor
on
the
[BJ
P.C.B.
All
other
ICs
and
transistors
listed
in
this
table
are
used
America,
Middle
on
the
[E¥
Servo
P.C.B.
Near
East,
Africa
*
A
comprehensive
electrical
parts
list,
regarding
the
servo
circuit,
appears
on
pages
21~23
of
this
Supplermentary
and
Oceania.
Service
Manual.
CH ANG ES Saudi Arabia. (None of the mechanical parts have been affected by these modifications. Refer to the original Service Manual.)
Far East PX.
Notes (1) Reason for Modifications: To simplify the servo European Military.
circuit while improving its performance. European Audio
(2) Modifications Effective: From July, 1988 and Club.
onward
(3) Identification of Modified Units: Hi CONTENTS
1): A serial number suffix of F or beyond
ran
‘ds
:
Page
Page
indicates a modified unit.
2): A “CAUTION” label (THE ORIGINAL MEASUREMENTS AND ADJUSTMENTS ................ 3~7 SCHEMATIC DIAGRAM..............ccceceresrere censors 17~20
DESIGN HAS BEEN CHANGED. REFER TO BLOCK DIAGRAM OF SERVO CIRCUIT .............cccccse 8 RESISTORS AND CAPACITORG............c..00 cscs 21, 22
SERVICE
MANUAL
(SUPPLEMENT).)
has
TERMINAL
FUNCTION
OF
ICs
REPLACEMENT
PARTS
LIST
(Electrical
parts)....
23,
24
been affixed inside the chassis. (10101, 102, 103) oo... ceesseesescseenesceeseeeeeeseeesereeate 9~11 NEW SERVO GAIN ADJUSTER
TROUBLESHOOTING GUIDE... eee eeeeeeeeee 12~14 (Servo Amp. Adjusting Fixture)............. 2 ceseeee 24
PRINTED CIRCUIT BOARDS. .............eceesssessseeneees 15, 16
Matsushita Services Company Panasonic Hawall, Inc. Matsushita Electric Industrial Co., Ltd.
50 Meadowland Parkway, 99-859, lwaiwa Street Central P.O. Box 288, Osaka 530-91, Japan
Secaucus, New Jersey 07094 P.O. Box 774
@ Honolulu, Hawaii 96808-0774 Panasonic Tokyo Sales Department
C Panasonic Sales Company, Matsushita Electric Industrial Co., Ltd.
eS nigics Division of Matsushita Electric Matsushita Electric World Trade Center Bidg.. 4-1, Hamamatsu-cho,
of Puerto Rico, Inc. of Canada Limited 2-chome, Minato-ku, Tokyo 105, Japan
Ave.65 De infanteria,Km.9.7 5770 Ambler Drive, Mississauga,
Victoria Industrial Park Ontario, L4W 2T3
Carolina,Puerto Rico 00630 —-2-—