Technics SL-P200

IS FOCUS LENS MOVED VERTI-
CALLY FOR SERACH OPERATION?
(VISUAL CHECK)
No
DOES
SPINDLE
MOTOR
———
|
@.
Microprocessor
Circuit
START
TO
ROTATE?
IC~601
N152611)
IC-401 (NLS54PEP)
Yes
No
TS
FOCUS
LOOP
SERVO
———
|
©.
Focus
Error
Amplifier
OPERATED?
[C101
(AN8370S)
Yes
No
IS
TRACKING
LOOP
SERVO
——>
|
©.
Microprocessor
Ci
OPERATED?
[C401
MN1S54PEP
@. Servo Control Circuit
(AN8370S)
Yes
No
DOES
TRAVERSE
SERVO
OPERATE
|
=?
|
@.
Microprocessor
Circuit
CORRECTOLY?
IC-401
MN1554PEP)
@. Traverse Drive Circuit
6636)
Yes
Saeco. | i CIRCUIT IN NORMAL
‘ass aie
(S RF SIGNAL CONVERTED BY
THE ACC CIRCUIT TO ON ARF
SIGNAL WITH A CONSTANT
AMPLITUDE?
i
SL-P200 SL-P200
————= | (D. Microprocessor Circuit
C401 O4N1554PED)
@. Servo Contro! Circuit
IC-101 (AN8370S)
@. Focus Error Amplifier
IC-104, 106, (SVIBA4558FTID
Q141 (2901862)
Q142 (2881240)
@ Optical Se ¢SOAD70S)
Focus Co
None eriblo
@. Turntable Drive Circuit
[C-301 4N6617)
IC-402 (aA4558)
Q351 (UN4112)
Q403 (2SD1862)
Q404 (2SB1240)
@.0C Spindle Motor
(SJCDRF310T-2)
Q142 (2881240)
reuit
,)
Hacking tof Api
racking Error Amplifier
[C-105 (SVIBA455.
Q162 (2881240)
. Optical Pick-up ¢SOAD70S)
. Tracking Coil
(one Repairable)
————>
|
=HOW
TO
CHECK
THE
TRAVERSE=
@the
sound
skip
every
few
second
in
play
mode.
tical
pick-up
move
to
outward
or
inward
alter-
nately.
@Otical
pick-up
stick
at
inner
or
outer
position.
IC-102 ON
[C-103 (AN6554S)
Q181 (2801662)
Q182 (2SB1240)
@. Traverse Coil (SORD38-2
No
—————
|
©.
Microprocessor
Circuit
S
aameen.
2
IC-401
MN1SS5S4PEP)
No
——~>
|
©.
Auto
Gain
Control
Circuit
|
———=»
[C-SO1
(AN8371S)
=HOW TO CHECK DSL CIRCUIT=
@the level of IC-501 pin 22
become low
SHOW TO CHECK ACC CIRCUIT=
@The level of [C-501 pin 16
(ARF Signal) becom 0. 8Vp-p
ae
— 49 —
IS ARF = CONVERTED BY
ens
@.
Data
Slice
Circuit
_
DSL
CIRCUIT
TO
SRF
|
SA
SBM,
CaN
|
IC-501
(AN8371S)
[e
IS SRF SIGNAL SYNCHRONIZED a
WITH PCK SIGNAL?
Yes
No
[S CLV SERVO CHANGED TO THE | ———-->
PHASE-COMPARTSON MODE?
["
No
ARE BOTH EFM AND PCK CLOCK | —————»
SIGNAL APPEARED?
Yes
NORMAL OPERATION
[S AUDIO SIGNAL APPEARED? | ————=
@. Phase Loop Circuit
IC-301 (46617)
[C-501 (AN8371S)
@. CLV Circuit
[C-301 (4N6617)
(D. Phase Loop Lock Circuit
[C-501 (AN8371S)
@. Digital Filter Circuit
[C-801 (4N6623)
. LPF Circuit
[C-803, 804 (LM833)
IC-805 (SVIH8DN2175)
[C-806 (SV[H8DN2175)
=HOW TO CHECK SRF CIRCUIT=
@To check oe Signal) at
IC-501 pin
=HOW TO CHECK SYNCHRONIZE=
@To check IC-501 pin 5 by
oscilloscope in triggered
mode with RF signal (J301)
and if output wave from at
IC~501 pin 5 can be synch-
nized phasetically, the
Aes IC-301 pin 78 become
=HOW TO CHECK PHASE COMPARISON
@To check waveform at [C-301
pin 65 FC signal)
—-———> | =HOW TO CHECK EFM AND PCK=
@To check IC-501 pin 3 for
EFM waveform
———ep
@To check IC-501 pin 5 for
PCK waveform
Printed in Japan
H880307600AM/TK