Jvc KSRT 55 Service Manual

Page 1

KS - RT55 C/J

.JVB
SERVICE MANUAL

KS- RT55 C/J

............... Canada
................. U'SA.

Contents

1. Main Features .................................................... 2 g_ mock Diagram ................................................ 23
2. Specifications ------ ---2 9. Wiring Connections ----------- -~25
3. lnstructions(Extract) ...3 10. Standard Schematic Dlagram 26
4. Location of Main Parts-m ~12 11. Location of RC. Board Parts-- 28
5. Removal of Main Parts -------------------------------------- 13 12. Electrical Pans List ~~~~~~~~~~~~~~~~~~~

6. Main Adjustment ................................................ 15 13. lllustration of Packing and Parts List ................... 34
7 Ana|yfic Drawing and Parts List ............................ 18 14' Accessories .................................................... 35

No. 49201
April 1994

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KS-RT55 C/J

.1. Main Features

0 Detachable Control Panel

.AM/FM Stereo PLL Synthesizer Tuner

.20 - Station Preset Tuning(FM - 15,AM v 5)

O Preset Scan/Scan/Seek/Manual Tuning

0 U - Turn Auto - Reverse Mechanism

.Dolby B Noise Reduction

.4 - Channel Amplifier System

.Maximum Power Output 018 watts per channel
(Front)/25 watts per ohannel(Rear)

.Active Hyper 7 Bass Sound

2. Specifications

AUDIO AMPLIFIER SECTION

Maximum Power Output: (Front) 8 W per channel
(Rear) 25 w per channel

Continuous Power Output (HMS): (Front) 3 W per
channel into 4 Q, 40 to 20,000 Hz at no more than
0.8% total harmonlc distortion. (Rear) 12 W per
channel into 4 Q. 40 to 20,000 Hz at no more than
0.8% total harmonic distortion.

Load Impedance: 4 Q (4 to 8 Q allowance)

Tone Control Range
Bassz'HU dB at 100 Hz
Treble. :10 dB at 10 kHz

Frequency Response: 40 to 20,000 Hz

Signal~to-Noise Ratio: 70 dB

Line-Out Level/Impedance: 0.5 V120 kn load
(250 nWb/m)

RADIO SECTION
Frequency Range
FM: 87.5 to 107.9 MHz (GM)
(with channel interval set to 200 kHz)
87.5 to 108.0 MHZ (C/J)
(wlth channel interval set to 50 kHz)
875 to 108.0 MHz (A/U)
AM: 530101.710 kHz (C/J)
(with channel interval set to 10 kHz)
522 to 1 .620 kHz (CA!)
(with channel intenral set to 9 kHz)
531 to 1,602 kHz (A/U)
[FM Tuner]
Usable Sensitivity: 12.1 dBl ( 1.1 uV/75 9)
50 dB Quiellng Sensitivity: 16.3 (151 (1.8 pV/75 9)
Alternate Channel Selectlvlty: (400 kHz): 65 (18
Frequency Response: 40 to 15.000 Hz
Stereo Separation: 35 dB
Capture Ratio: 2.0 dB

2 (No. 49201)

. Fader Control

0 Digital Clock Display
0 Mono Button

0 Line Output Terminal

*Dolby Noise Reduction manufactured under license from Dolby
Labratorles Licensing Corporation.Dolby"and the double - D
symbol DEI are trademarks of Dolby Laboratories Licensing

Corporation.

[AM Tuner]
Sensitivity: 20 (N
Selectlvlty: 35 dB

CASSETTE DECK SECTION

Wow & Flutter: 0.1 1% (WRMS)

Fast-Wind Time: 100 sec. (6-60)

Frequency Response: 50 to 15,000 Hz (13 dB)

Signalto-Noise Ratio (Dolby NR-ON): 60 dB
(Dolby NR-OFF): 52 dB

Stereo Separation: 40 :18

G ENERA L

Power Requirement
Operating Voltage: 00 14.4 volts (11 to 16 volts
allowance)
Grounding System: Negative ground

Dimensions (W x H x D) Installation Size: 178 x 50 x
151 mm (7-1/16" X 2" x 6")
Panel Slze: 190 x 58 x 18 mm (7-1/2" x 2-5/16" x
3/4")

Gross Weight: 1.8 kg (4.01bs)

Design and specifications subject to change without
notice

If a kit is necessary for your car, consult
your telephone directory for the nearest 'car
audio speciality shop.