Panasonic RX-DS45 User manual

ORDER NO. AD9104 TesC
Service Manual
Portable Stereo CD System
OISc
DIGITAL AUDIO
TAPE DECK: RX-FD55 MECHANISM SERIES (AR300)
TRAVERSE DECK: RX-DT55 MECHANISM SERIES (SODD110)
@ SPECIFICATIONS
General:
Power Requirement:
Power Consumption:
Power Output:
Speaker:
Inputs:
Output:
Dimensions:
Weight:
Disc Player Section:
Sampling Frequency:
D-A Conversion:
Light Source:
No. of Channels:
Frequency Range:
Dynamic Range:
S/N Ratio:
Wow and Flutter:
AC; 230~240 V, 50 Hz
Battery; 15 V (10 R20/LR20, UM-1
batteries)
Memory Back-up for
Computer/Clock; 6V (4 R6/LR6,
UM-3 batteries)
46 W (AC only)
22.5 Wx2...PMPO
Woofer; 10 cmx2 PM Dynamic
speaker (2.7Q)
Tweeter; 8cmx2 PM Dynamic
speaker (8Q)
MIX MIC; 4.5 mV/200~600Q, 23.5
AUX; 200 mV/47 kQ
HEADPHONES; 32Q, @3.5
648 (W) x 175 (H)x250 (D) mm
5.8 kg without batteries
44.1 kHz
16-bit linear
Semiconductor laser
(wavelength 780 nm)
2 channels, stereo
20~ 20,000 Hz (+ 1/—2 dB)
95 dB
100 dB
below measurable limit
Notes:
Radio Section:
Radio Cassette
RX-DS45
Color
(Kei cas one Black Type
Areas
Country
Continental Europe and
(EG) F.R. Germany
(K)
Radio Frequency Range: FM; 87.5~108 MHz
LW; 144~288 kHz
MW; 522~1611 KHz
Intermediate Frequency: FM; 10.7 MHz
AM; 459 kHz
Sensitivity: FM; 5 uV/50 mW output
(-3 dB Limit Sens)
LW; 100 2V/m/50 mW output
MW; 60 LV/m/50 mW output
Tape Deck Section:
Frequency Range:
Recording System:
Tape Speed:
Monitor System:
Track System:
1. Weights and dimensions shown are approximate.
2. Design and specifications are subject to change without notice.
Panasonic
30~ 16,000 Hz (with normal tape)
AC bias (67 kHz), AC erase
4.8 cm/s
Variable sound monitor
4-track 2-channel stereo recording and
playback

RX-DS45
m@ CONTENTS
Page Page
@PRECAUTION OF LASER DIODE .................-... 0000 2 eUSING THE EXTENSION CABLES WHEN CHECKING
®@LOCATION OF CONTROLS ..............0 2 eee ee eee 3~6 THE PC Be oi s.sc. catcsee Bohs Stlees Salta dedi Baca eee 35~37
@HANDLING PRECAUTIONS FOR TRAVERSE DECK ........ 7 @®MEASUREMENTS ANDADJUSTMENTS ............ 38~45
®@DISASSEMBLY INSTRUCTIONS .................0000- 7~13 e@BEFORE REPLACING TRAVERSE DECK .............. 40, 41
@SCHEMATIC DIAGRAM ............. 2.0 cece e eens 14~27 @FUNCTION OF IC TERMINALS ...................05- 46~49
@LIQUID CRYSTAL DISPLAY (LCD) .................0.22. 19 @BLOCK DIAGRAM........-. 6.0... ccc eee eee 50~55
®CIRCUIT BOARD DIAGRAM .............--2..0 000s 28~32 @REPLACEMENTPARTSLIST ......... 000... .0 eee 56~69
e@WIRING CONNECTION DIAGRAM ..................-- 33, 34 @CABINET PARTS LOCATION ........... 0.00 .0.0.0000 008 65, 66
CAUTION:
THIS PRODUCT UTILIZES A “LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED
HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
m@ PRECAUTION OF LASER DIODE
CAUTION: This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pick up lens.
Wave length: 780 nm
Maximum output radiation power. from pick up: 100 pW/VDE
Laser radiation from the pick up lens is safety level, but be sure the followings:
1. Do not disassemble the optical pick up unit, since radiation from exposed laserd diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using oplical instruments.
4. Recommend not to look at pick up lens for a long time.
ACHTUNG: Dieses produkt enthalt eine laserdiode. Im eingeschalleten zustand wird unsichtbare laserstrahlung von der
lasereinheit abgestrahlit.
Wellenlange: 780 nm
Maximale strehlungsleistung der lasereinheit: 100 UW/VDE
Die strahlung an der lasereinheit ist ungefahrlich, wenn folgende punkte beachtet werden:
1, Die lasereinheit nicht zerlegen, da die strahlung an der freigelegten laserdiode gefahrlich ist.
2. Den werksseitig justierten einstellregier der lasereinreit nicht verstellen.
3. Nicht mit optischen instrumenten in die fokussierlinse blicken.
4. Nicht Gber langere zeit in die fokussierlinse blicken.
VARO! Avattaessa ja
suojalukitus ohitettae-
ssa olet alttiina
nadkymattémille
lasersateilylle.
Ala katso sateeseen.
CLASS 1
LASER PRODUCT
ADVARSEL: USYNLIG LASERSTRALING ME BVARNING! Osynlig
VED ABWING, NAR simceHEDSAF- TIMI ferns de at_oppnad
BRYDERE ER UDE AF FUNKTION. och sparren ar
UNDGA UDS/ETTELSE FOR STRALING. urkopplad.
LUOKAN 1 LASERLAITE Raneakte 0) Setea
KLASS 1 LASER APPARAT inccrsicen at apparatet
~2-

RX-DS45
m@ LOCATION OF CONTROLS
eCD/GENERAL CONTROLS
BALANCE ~~ XBS LEVEL TONE
@ CD eject button (CD EJECT)
@ Headphones jack (PHONES)
(@3.5, 32Q)
@ Balance control (BALANCE)
© Extra bass system control (XBS LEVEL)
@ Tone control (TONE)
@ Volume control (VOLUME)
@ Automatic tape level setting button (ATLS)
@ Fit edit recording button (FIT)
© Tape length button (TAPE LENGTH)
@ Skip/search buttons ( 10/0 - pvpot )
® Pause button ( 00 )
@ Beep sound button (BEEP)
Caters
TC ) | time settunng _)
ae einige) =| ehérw | ESP
| SEEEEPERED) V2,
Saas === ea=3) |
—
C
Preser
tuning)
=a
as ae | | | ee
Car [owes
b/O
co
TUNER/TIMER:
@® Cancel button (CANCEL)
@ Auto edit recording button (AUTO EDIT)
® Play/stop button (>/0)
® Operation switch ( )
@® CD button (CD)
@® Display section
: CD mode indicator (CD)
: Track display
: Playing time display
: Level meter
: Program indicator ([PROGRAM] )
: Random indicator ( )
: Music matrix
: Over mark indicator (@) )
I: Repeat indicator (5))
@® Operation/Battery check/AC connection indicator
(OPR-STDBY (4 )
© Remote control sensor
roOomnmoowap

RX-DS45
eTUNER CONTROLS
ERK
€&) Tuning buttons (TIME SET/TUNING)
@ Tuning memory button (TUNING MEMORY)
@® FM mode/beat proof button (FM MODE/B.P)
€) Tuner/band select button (TUNER/BAND)
® Preset tuning buttons (PRESET TUNING)
BALANCE
XBS LEVEL
Tol
E wn VOLUME wax
SF =>)
FM MODE | TUNING 5
cua | ett
PRESET TUNING
+
@ Display section
O7NmMION>
: Band indicator (FM/MW/LW)
: Frequency display
: Stereo indicator ( )
: Tuning indicator ( )
: Preset channel displays
Memory indicator ((PROGRAM])
: FM mode indicator ([MONO])
When the tape is Caught in the pinch
roller, etc. Release the tape by tuning the
pulley on the motor with the screwdriver
in the direction of the arrow.

eDECK CONTROLS
@ Cassette compartment cover
@ Eject button (4 EJECT)
@® Reverse mode select button (REVERSE MODE)
€ Counter reset button (COUNTER RESET)
&® Rec-pause button (REC PAUSE)
@® Stop button (D)
@ Fast/tape program sensor button (<i<J DD)
@ Reverse side playback button (>)
@REAR PANEL
RX-DS45
min VOLUME max
TIMER | TIMER-REC ATLS
TIMER TIME, 1
CHECK | ADJUST
j@
CANCEL
n a
TIME SET/TUNING TAPE AUTO
S + LENGTH | EDIT
FM MODE | TUNING Dot
(s2rcalpe
PRESET TUNING
+
Vv XN
Oo
TUNER/ TIMER
@ Forward side playback button (<)
@ TAPE/AUX button (TAPE/AUX)
@ Display section
A: Tape mode indicator (TAPE)
B: Tape counter
C: Tape running indicator
D: Reverse mode indicator ( <=> )
E: Tape direction indicators (<< D>)
@ AC socket (AC IN~)
@® Handle
@ Telescopic antenna
@ Battery compartment cover
@ AUX input jack (AUX IN)
(200 mV/50 kQ)
©) Mixing microphone jack (MIX MIC)
(4.5 mV/200~ 6000, 23.5)

RX-DS45
eTIMER CONTROLS
BALANCE
REVERSE | COUNTER:
MODE | “RESET f
[ore pause :
= [w= |(maF [ase)
PRESET TUNING
=. = ( w | >va)
TAPE ) K TUNER/TIMER Ke co J
TIMER TIME
CHECK ADJUST
© Timer check button (TIMER CHECK) @ Display section
: Timer ON indicator (ON)
©
Timer
play
button
(TIMER)
B:
Timer
indicator
(TIMER)
>
@ Timer recording button (TIMER-REC) C: Timer recording indicator (TIMER-REC)
: ;
D:
Timer
OFF
indicator
(OFF)
@ Time adjust button (TIME ADJUST) E: Sleep timer indicator (SLEEP)
@ Time set buttons (TIME SET/TUNING) F: AM-PM/play mode indicator
@ Sleep timer button (SLEEP) Galina dispiay
eREMOTE CONTROLLER
©The receiving angle is approx. 60° (30° in each of the left, right directions).
@The maximum usable distance in about 7 m when the Remote Controller is aimed directly at the Remote Control Sensor.
@ Display Button (DISPLAY)
© Manual Edit Recording Button (M.EDIT)
© Numeric Buttons (1-10, +10)
© Program Button (PROGRAM)
© Cancel Button (CANCEL)
@ Random Button (RANDOM)
@ Repeat Button (REPEAT)
Note:
Please refer to “LOCATION OF CONTROLS" for the controls
not described above.

| RX-DS45
m HANDLING PRECAUTIONS FOR TRAVERSE DECK
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or
human body.
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
Handling of traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static
electricity as itis extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an anti-static
shorting pin is inserted into the flexible board (FPC board).
When removing or connecting the short pin, finish the job in as
short time as possible.
3. Take care not to apply excessive stress to the flexible board (FPC.
board).
4. Do not tum the variable resistor (laser power adjustment). It has
already been adjusted.
eGrounding for electrostatic breakdown
prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity
from your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where
the traverse deck (optical pickup) is placed, and ground the sheet.
Caution:
The static electricity of your clothes will not be grounded through the
wrist strap. So, take care not to let your clothes touch the traverse
deck (optical pickup).
m@ DISASSEMBLY INSTRUCTIONS
eee | Removal of the Handle eo Removal of the Front Cabinet
2]
1. Remove 2 screws (@, @).
2. Remove the handle in the direction of arrow.
Front cabinet
6. Remove the front cabinet in the direction of arrow ©.
7. Release the connector (CP303).
Optical pickup
(Do not turn)
FPC board
(Handle it carefully)
Be sure to short this portion
(Use the shorting pin or ctip.)
esseiseces:
1MQ
Iron plate or some metals
to conduct electricity
Procedure
1-2
1. Remove the battery cover.
2. Remove 8 screws (@~@).
Cassette eject button
3. Press the cassette eject button and then open the cassette
holder.
4. Press the CD eject button and then open the CD cover.
5. Release the claw in the direction of arrow @.

RX-DS45
Procedure
1323
ais
Removal
of
the
Tuner
P.C.B.
1,
Remove
4
screws
(@~Q).
2.
Release
2
connectors
(CP1,
CS2).
Removal of the connector (CS2).
iad
Removal
of
the
Mechanism
oe
Removal
of
the
Upper
Cabinet
Procedure
1+24
1. Remove 3 screws (Q@~®).
J971 cP302
Mechanism
2. Pullout the mechanism.
©Removal of the connector (J971).
as <
am
3. Release 3 connectors (CP301, CP302, J971).
Flat cable
Procedure
132-55
a3 ©
cK»)
|
te Tes |
= | -
fromm
hauacen 4
oe
8
‘
CD eject button
. Press the CD eject button and then open the CD cover.
. Open the operation panel cover.
. Remove the volume knob.
. Remove 6 screws (@~@).
. Release the connector (CM804).
ahwhd —
Open the operation panel cover.
2. Lift up the operation panel
cover.
eRemoval of the volume knob.
Rope

RX-DS45
Ref. No. .
Removal of the Operation P.C.B. Operation P.C.B.
Procedure
1-25-56
© PT inn ‘2
Operation P.C.B.
1. Remove 4 screws (@~@O). 3. Remove the operation P.C.B. in the direction
2. Release 2 claws in the direction of arrows @. of arrow @ @.
Procedure
1325-7
1. Remove the connector (CP1).
\ S701
8 cmso2 CM801 =
1. Release 3 connectors (CS701, CS702, CS703).
€S701 CS702 CS703 ‘ \ f- 2. Remove 4 screws (@~@).
Traverse unit
2. Remove 4 screws (Q@~O).
3. Release 6 connectors (CS701, CS702, CS703, CM801,
CM802, CM803).
Removal of the connectors (CS701, CS702, CS703).
Notes: B...Blue
O...Orange
W...White
K...Black
3. Release 2 claws in the direction of arrows @.
4. Lift up the traverse unit in the direction of arrow @.
5. Release 5 connectors (CP701, CP702, CP703, CP704,
CS705).

RX-DS45
Removal of the Traverse Unit
Procedure
1 2 5 > 8—>
9
Release 4 claws in the direction of arrows @ and then pull out the pin in the direction of @®
arrow @). Wes hm or) Pec. ate )
Ret N° | Removal of the AF P.C.B.
Procedure
1 2-4-5
Battery P.C.B.
ys
Sth A
Lo”
1. Remove 2 screws (@, @). 4. Release the claw in the direction of arrow © and then pull
2. Remove the holder. out the battery P.C.B.
3.
Release
2
connectors
(CS2,
CM301).
5.
Release
3
connectors
(CM801,
CM802,
CM803).
6. Remove the AF P.C.B. in the direction of arrow @.
(ae Removal of the Power Supply P.C.B.
a i Power Supply
. P.C.B.
Removal of the connector (CM301).
1. Release 2 connectors (CM301, CM308).
2. Remove 6 screws (@~@).
3. Pull out the power supply P.C.B.
Removal of the Back-up Battery
P.C.B.
ae
Procedure
#-
\.
Back-up
battery
132-5585
@
P.C.B.
a5
{
\
\ : Back-up battery
1. Release the claw in the direction of arrow @ and then pull out
the back-up battery P.C.B. @.
2. Pull out the back-up battery P.C.B. @ in the direction of arrow @.
~10-