MICROFILM
XR-C543SP
East European Model
SERVICE MANUAL
FM/MW/LW CASSETTE CAR STEREO
SPECIFICATIONS
Model Name Using Similar Mechanism
XR-C553SP
Tape Transport Mechanism Type
MG-52A-135
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol
aare trademarks
of Dolby Laboratories Licensing Corporation.
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
Speaker impedance
4 8 ohms
Maximum power output 35 W
× 4 (at 4 ohms)
General
Outputs
Power amplifier control
lead/Power aerial control
lead/Telephone mute
control lead
Line out (2)
Tone controls
Bass ± 8 dB at 100 Hz
Treble ± 8 dB at 10 kHz
Power requirements
12 V DC car battery
(negative ground)
Dimensions
Approx. 188
× 58 × 183 mm (w/h/d)
Mounting dimensions
Approx. 182
× 53 × 164 mm (w/h/d)
Mass
Approx. 1.6 kg
Supplied accessories
Parts for installation and connections (1 set)
Rotary commander
RM-X2S
Design and specifications are subject to change without notice.
Cassette player section
Tape track
4-track 2-channel stereo
Wow and flutter
0.08% (WRMS)
Frequency response
30 20,000 Hz
Signal-to-noise ratio
Cassette type
Dolby B NR
Dolby NR off
TYPE II, IV
67 dB
61 dB
TYPE I
64 dB
58 dB
Tuner section
FM *
Turning range
65.0 74.0 MHz
(at 30 kHz step)
87.5 108.0 MHz
(at 50 kHz step)
Aerial terminal
External aerial connector
Intermediate frequency 10.7 MHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo),
0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 15,000 Hz
Capture ratio
2 dB
* There are the numerical values mesured at 87.5 108.0 MHz.
MW/LW
Tuning range
MW: 531 1,602 kHz
LW: 153 281 kHz
Aerial terminal
External aerial connector
Intermediate frequency 10.71 MHz/450 kHz
Sensitivity
MW: 30 µV
LW: 50 µV
Refer to RM-X2S/X3S SERVICE MANUAL (9-960-039-
)
issued previously for information of remote commander
(RM-X2S) supplied with this set.
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TABLE OF CONTENTS
1.
GENERAL
Location of Controls ........................................................ 3
Installation ....................................................................... 4
Connections ..................................................................... 5
2.
DISASSEMBLY .......................................................... 8
3.
ASSEMBLY OF MECHANISM DECK ........... 11
4.
MECHANICAL ADJUSTMENTS ....................... 17
5.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 17
Tape Deck Section ........................................................... 18
Tuner Section ................................................................... 18
6.
DIAGRAMS
6-1. IC Pin Function Description ............................................ 22
6-2. Printed Wiring Boards MAIN Section ..................... 25
6-3. Schematic Diagram MAIN Section ........................... 29
6-4. Printed Wiring Board POWER Section .................... 34
6-5. Schematic Diagram POWER Section ........................ 37
6-6. Printed Wiring Board CONTROL Section ............... 41
6-7. Schematic Diagram CONTROL Section ................... 43
7.
EXPLODED VIEWS ................................................ 47
8.
ELECTRICAL PARTS LIST ................................ 51
SERVICING NOTES
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270 ° C dur-
ing repairing.
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
· Be careful not to apply force on the conductor when soldering
or unsoldering
Notes on chip component replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used batteries according to the manufacturer's instructions.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type
anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens
instruksjoner.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande föreskrifter.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
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SECTION 1
GENERAL
This section is extracted
from instruction manual.
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