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Panasonic RX-1490/A User Manual

Panasonic RX-1490/A
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ORDER
NO.
RD82112046C3
Service
Manual
Radio
Cassette
RX-1490/A
FM-AM
Radio
Cassette
Recorder
@
SPECIFICATIONS
General:
Power
Requirement:
AC;
110~115/115~127/200~220/
230~250
V,
50/60
Hz
AC:
240
V
50
Hz
(Australia
Only)
Battery;
7.5
V
(Five-UM-1
“‘D”’
Size
Flashlight
Batteries)
(National
UM-1
or
equivalent)
Radio
Section:
Radio
Frequency
Range:
Intermediate
Frequency:
Sensitivity:
FM;
88~108
MHz
AM;
525~1605
kHz
(571~187
m)
FM;
10.7
MHz
AM;
455
kHz
FM;
2.8uV/50
mW
output
Power
Consumption:
8
W
(AC
only)
AM;
50nV/m/50
mW
output
Power
Output:
2.5W...
RMS
(max.)
Tape
Deck
Section:
Speaker:
Woofer;
12
cm
(423/32'’)
PM
Dynamic
Frequency
Response:
80~9,000
Hz
Speaker
(30)
Recording
system:
DC
bias,
Magnet
erase
Tweeter;
3.
cm
(13/16’’)
PM
Dynamic
Tape
Speed:
4.8cm/s,
(17/s
ips)
Speaker
(420)
Program
Time:
1
hour
with
C-60
cassette
tape
Input:
MIC;
sensitivity
0.25
mV
(—72
dB)/
Track
System:
2-track
1
channel
monaural
recording
applicable
microphone
impedance
and
playback
200~6000
EXT
SP;
3~82
Dimensions:
348
mm(W)
x
223
mm(H)
x
123
mm(D)
(131/16
813/16
47/s)”
Weight:
2.4
kg
(5
Ib.
4.7
oz.)
without
batteries
Specifications
are
subject
to
change
without
notice.
National
Panasonic
Matsushita
Electric
Trading
Co.,
Ltd.
P.O.
Box
288,
Central
Osaka
Japan
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Panasonic RX-1490/A Specifications

General IconGeneral
BrandPanasonic
ModelRX-1490/A
Power SourceAC
Battery typeD-type (R20)
Speakers2

Summary

Specifications

General Specifications

Summary of power, output, speaker, input, dimensions, and weight.

Radio Section Specifications

Details radio frequency range, intermediate frequency, and sensitivity.

Tape Deck Section Specifications

Outlines tape deck frequency response, recording system, speed, and program time.

Controls and Components Location

Front Panel Controls and Indicators

Identifies and locates all buttons, knobs, and indicators on the front.

Rear and Side Panel Connections

Details external connection jacks and ports on the unit.

Disassembly Instructions

Component Removal Procedures

Explains steps and specific parts needed for disassembly.

Dial Threading

Dial Cord Routing Diagram

Visual guide for threading the dial cord for accurate tuning.

Measurements and Adjustments

Alignment Procedure and Instructions

Step-by-step guide for aligning radio circuits for optimal performance.

Alignment Points and Diagrams

Illustrates specific points requiring adjustment for radio tuning.

Block Diagram Overview

Presents a high-level functional overview of the unit's electronic circuitry.

Schematic Diagram

Component Identification and Notes

Lists electronic components and provides important safety and usage notes.

Circuit Board and Wiring Diagram

Test Point Voltage Readings

Provides DC voltage measurements for various test points within the circuitry.

Mechanism Parts Location

Mechanical Assembly Diagrams

Visual layout of all mechanical components for assembly and repair reference.

Cabinet and Electrical Parts Location

Cabinet Component Identification

Illustrates and locates various external cabinet parts for replacement.

Replacement Parts List

Mechanical Parts

Comprehensive list of mechanical components with part numbers and references.

Electronic Components

Lists integrated circuits, transistors, diodes, coils, and transformers with part numbers.

Replacement Parts List (Continued)

Switches, Jacks, and Resistors

Lists switches, jacks, and resistors with their respective part numbers.

Capacitors, Accessories, and Printed Material

Lists capacitors, accessories, and printed materials with part numbers.

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