Technics SLXP 140 Service Manual
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Extracted text from Technics SLXP 140 Service Manual (Ocr-read)
Page 1
ORDER NO. AD9603057CB
Service Manual
Portable CD Player
at
area "3- MAS H S L X P1 40
mumstags noise shaping .-
mmwm" %
. isa ra ema o . COIOUI
Area
3:3: :\l°¢:. Area Colour
(E) Europe.
(EB) Great Britain.
(EG) Germany and Italy.
Asia, Latin America, (K)
(GC) Middle Near East and
Africa.
(GN) Oceania.
TRAVERSE DECK: RAEo141z MECHANISM SERIES
ISPECIFICATIONS;
IAudio
No. of channels:
Output voltage:
Frequency response:
SIN:
Wow and flutter:
DA converter:
Headphone output level:
Digital filter:
ISignaI Format
Correction system:
IPickup
Type:
Light source:
Wavelength:
Lens:
I Playing time;
(When the unit is used,
at 25°C temperature
and on flat and Stable
surface.)
Recharging time;
Technics®
IGeneral
2 channels (left and right, stereo) Power requirement:
0.6 V (50 k9) 95 3.5 stereo mini jack
20~20,(l00 Hz (+0.5 dB, --1.5 dB)
More than 94 dB
Below measurable limit
1 bit, MASHK
Max. 9 mW+9 mW/169 (variable)
stereo mini jack ¢ 3.5
8 times over sampling
Technios New
Super Decoding Algorithm
One beam
Semiconductor laser DO IN:
780 nm Operation temperature
Glass pressed lens range:
Rechargeable
- temperature range:
:lechargeable About 3 hours Power SUPPIV
atterles- Power consumption:
Panasonic Using AC adaptor;
alkaline dry cell About 10 hours Dimensions (wx HXD):
batteries Weight:
The play time may be less depending on
the operating conditions.
About 3 hours
A0; with an included panasonic AC
adaptor
RFEA401E-2S (E, EG)
RFEA404B~1W (EB)
RFEAAOSZ-S (GC)
RFEA403A-S (GN)
Batteries; DC 3 V (two "AA" size batteries,
not included)
(Panasonic RGP/LRG or equivalent, not
included)
Rechargeable Batteries; DC 2.4 V with
an optional Panasonic Rechargeable
Batteries (SH~CDBBD set ol 2)
Car Battery; with an optional Pansonic car
adaptor (SH-CD09)
DC 4.5 v 9-6-69
0°C ~ 40°C
5°C-40°C
DC 4.5 V
5.5 W
128><29><140 mm
225 9 without batteries
270 g with batteries
Note: Design and specifications are subject to change without notice.
Weight and dimensions are approximate.
© 1996 Matsushita Electric Industrial (30., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation at law.
Contents
Page 2
SL-XP14O
ICHECKING THE OPERATION PROBLEMS ON THE TRAVERSE DECK
(OPTICAL PICKUP)
Make sure to follow the procedures below to check the operation problems of the traverse deck (optical pickup) before replacing it.
Replace the traverse deck only after the problem is identified.
(Procedure No.)
(Checking Points)
Starting the reading operation
(TOC).
Is focus search
executed?
(Check if lens moves
up and down.)
NO
(Cause)
Broken or
shorted focus
YES
Does the laser turn on?
(If it does, the turntable
will rotate.)
N0
coil
(Testing Procedure)
' Check if conductance on
both ends of coil with the
LD
deterioration,
or the position
of the
YES
turntable is
very low and
make contact
tester at about 15 ohms.
(The lens will slightly move
up and down during the
_ checking.)
' - RF signal at the RF test
point is over 0.4 Vp-p.
0 Check if the position of
the turntable is not very
with the motor.
Broken or
Tracking ON:'i-v shorted
YES
tracking coil
low and does not make
contact with the motor.
' Check if conductance on T
both ends of coil with the
Faulty PD
RF signal 0% (PHOTO
DETECTOR)
Traverse deck (optical
pickup) is normal.
0 Check electrical circuit.
0 Check for flaws on disc or if it is warped or not centered.
tester at about 15 ohms.
(The lens will slightly move
to the right or Ielt during the
» checking.)
' Check if the output is
minimum 0.4 Vp-p at the
_ test point. _
Traverse deck (optical
pickup) is faulty.
>.< Replace traverse deck.
0 Check the operations described below on the traverse deck after replacing it.
>1: Checking Skip Search
1. Play an ordinary musical program disc.
2. Press the skip button to check for normal skip search
operation (in both the forward and reverse directions).
>l< Checking Manual Search
1. Play an ordinaly musical program disc.
2. Press the manual search button to check for smooth
manual search operations at either low or high speed (in
both the forward and reverse directions).
* Checking Playability
1. Play the 0.7 mm black dot and the 0.7 mm wedge on
the playability test disc (SZZP1054C) and verify that
no sound skip or noise occurs.
2. Play the middle tracks of the uneven test disc
(SZZP105BC) and verify that no sound skip or noise
occurs.
,10_