Jvc KSRT 505 Service Manual

Page 1

KS ~ RT505 C/J

JVD

SERVICE MANUAL

KS - RT505 C/J

Area Suffix

C ....................... Canada

J ............................ U.S.A

Contents
I .Features-m Page2 @Location of p.c.board parts and parts list 32
I Specifications -------------------------------------- 2 .Expioded view of enclosure assembly
I .Instruciions ........................................... 3 and parts list ....................... 35
I.Location of main parts ----- I.Exploded view of mechanism
IRemoval of main parts ........................... 22 assembly and parts list ...................... 33
I.Main adjustment ................................... 24 @Packing illustration and parts list ............... 41
I.Biock diagram ...................................... 28
.Standard schematic diagram ------------------ 30
No.49239

February 1995

Page 2

KS RT505 ON

I Features, Specifications

QEATURES

CARACTERISTICAS

CARACTERISTIQUES

o Detachable Control Panel

a AM/FM Stereo PLL Synthesizer Tuner

I 24-Station Preset Tuning (FM-13, AM-s)

I Extra Station Preset Tuning

- Preset ScarVSeek/Manual Tuning

»Turn Auto-Reverse Mechanism

I Mutti Music Scan (KS-RT505 only)

I 4-Channel Amplifier System

0 Maximum Power Output of 22 watts per
channel (Front)/22 watts per channel (Rear)

I Sound Control Memory

0 Digital Clock Display

0 Line Output Terminal

I Panel as control removible

I Sintonizador sintetizador PLL estereolomco de
AM/FM

I 24-sintonlzacion programada de estaclones
(FM-18. AM-e)

I Preslntonizaclén de estaciOn extra

IExploraciOn preaiustada/bilsqueda/
sintonizacibn manual

I Mecanismo de inversién automatica de vuelta
en U

0 Exploracion de multiples mtlsicas (KS-FIT505
exclusivamente)

o Sistema amplillcador de 4 canales

o Salida de potencia maxima de 22 watts per
canal (frontal)/22 watts per canal (trasero)

I Memoria de control de sonido

I Reloj con indicacion digital

a Terminal de salida de llnea

o Panneau de commands detachable

o Syntoniseur a synthétiseur a accrochage de
phase bouclé AM/FM sléréc

o Syntonisation de 24 stations préréglées {FM-
18, AM)

I Synlonisation dc la station préréglée extra

I Syntonisatian par balayaga des préréglages/
recherche/manuelIe

I Mécanisme d'inversion automatique U-Tum

I Recherche musicals multiple ($437505
um'quement)

I Amplificateur 4 canaux

o Puissance de sortie maximale de 22 watts par
canal (A vant)/22 watts par canal (A Iris/e)

I Mémoire de commands de son

I Allichage numénque de Ihollage

I Bome de sortie Iigne

(SPECIFICATIONS

ESPECIFICACIONES

CARACTERISTIGUES TECHNIQUES

AUDIO AMPLIFIER SECTION

Maximum Power Output: (Front) 22 watts per channel
(Rear) 22 watts per channel

Continuous Power Output (HMS): (Front) 3 watts per
channel into 4 (2. 40 to 20.000 Hz at no more than
0.8% total harmonic distortion. (Rear) 8 waits per
channel into 4 £2. 40 to 20.000 Hz at no more than
0.8% Ioial harmonic distortion.

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

Tone Control Range
Bass: 110 dB at 100 Hz

33Treble: 110 dB at 10 kHz

Frequency Response: 40 to 20.000 Hz

Signal-to-Ncise Ratio: 70 dB

Line-Out Level/Impedance: 0,5 V/20 k9. load
(250 nWb/m)

RADIO SECTION
Frequency Range
FM: 87,510 107.9 MHz
(with channel interval set to 200 kHz)
87.5w 10540 MHZ
(with channel interval set to 50 kHz)
AM:530t01,710 kHz
(with channel Interval set to 10 kHz)
531 to 1.620 kHz
(with channel interval set to 9 kHz)

[FM Tuner]
Usable Sensitivity: 12.1 B! ( 1.1 W75 9)
50 dB Quieting Sensitivi 6.3 (1310.8 lav/75 Q)

Alternate Channel Selectivity: (400 kHz): 65 dB
Frequency Response: 40 to 15,000 Hz

Stereo Separation: 35 dB

Capture Ratio: 2.0 (13

[AM Tuner]

Sensitivity: 20 W

Selectivity: 35 dB

CASSETTE DECK SECTION

Wow Gt Flutter: 0.11% (WRMS)

Fast-Wind Time: 100 sec. (060)

Frequency Response: 50 to 14.000 Hz (23 dB)
Signal-towoise Ratio: 52 dB

Stereo Separation: 40 dB

2 (tie. 49239)

SECCION DEL AMPLIFICADOH DE AUDIO

Maxima potencia de salida: (Frontal) 22 W per canal
(Trasera) 22 W por canal

Poiencia de salida continua (HMS), (Frontal) a W per
canal dentro de 4 f2. 40 a 20 000 HZ con distorcién
armonica no mayor de 0.8%. (Tresero) a W per
canal hacia 4 n. 40 a 20000 Hz con distorcion
armorlica no mayor ca 0.9%.

1. lmpedancia de carga: 4 a (tolerancia de 4 a a a)

leites de control Ge torio
Graves: :10 dB a 100 Hz
Agudos: :10 dB a 10 kHz

Respuesla de lrecuencia 40 a 20 000 Hz

Relacion Seflal » ruido: 70 dB

Nivei do selida de llriea/lmpedancia: carga de 0.5 V/
20 m (250 rin/m)

SECCIDN DE RADIO
Limites de lrecuenola
FM: 87.5 a 107.9 MHZ
(con intervalos entre canales de 200 kHz)
87.5 3108.0 MHZ
(con lniervalos entre canales de 50 kHz)
AM: 530 a 1 710 kHz
(con intervalos entre canales de 10 kHz)
531 a 1 620 kHz
(con intervaloe entre canales de 9 kHz)
[Sintonizador de FM]
Sensibilidad milizable 12.1 dB! (1.1 pV/75 fl)
Umbral de sensibilidad de 50 dB: 16.3 1531 (1.3 "W75 0)
Selectividad de canal alternado: (400 kHz) 55 dB
Respuesta de lrecuencia: 40 a 15.000 Hz
Separaclon estereolonica. 35 dB
Relaclon tie caplacion: 2.0 dB
[Sintonizador de AM]
Sensbllida 20 [AV
Selectivide . 5 0E

SECCION DE LA PLATINA DE CASSETTE
Fluctuation y irémolo: 1% (WHMS)

Tiempo de Dobinadc raplaoz 100 seg. (C-GO)
Respuesta de lrecuencia: 50 a 14000 Hz (:3 dB)
Relacion serial - wide 52 dB

Separaclérl estereotonica: 40 dB

SECTiON AMPLIFICATEUR AU DlO

Puissance de sortie maximale: (A van!) 22 Wparcanal
(Arriére) 22 w par canal

Puissance de some continue (HMS): (Al/ant} E Wpar
canal sous 4 Q, 40 320.000 HZ avec mains de
0.0% do distorsion harmonique totale, (Amara)
B Wpar canal Sails 4 Q, 40 320.000 HZ EVBC mains
as 0.0% de distorsl'on harmanlque (aisle.

Impedance d9 charge: 4 (l (4 a 8 9 possible)

Gamma dc commands do tonalité
Graves: 10 (13 a 10(7Hz
Aigus: :10 yea 10 kHz

Hepanse en Iréquence: 40 a 20.000 Hz

Rapport signavbmrt: 70 dB

Niveau de sortie /ignylmpéderice: 0.5 V/20 Id}
(250 nWb/m)

SECTION RADIO
Gamma des (réquences
FM: 57.5% 107.9 MHZ
(avec intervene entre les canaux réglé 50!
200 kHz)
87.5 .9 109.0 MHZ
(avec interval/s entre les canaux réglé 50!
50 kHz)
AM: 53031.710kHz

(avec interval/s suite has canaux reg/é sur
10 KHz)
531 a 1.620 kHz
(aver; intervalle entre les canaux reglé sur
9 kHz)

[Synlonlseur FM]

Sells/Mme utilisable: 12,1 :15! (1.1 [AV/750}

Sensrbilite de sllencleux a 50 US: 16.3 L151 (1.3 W75 0)

Sélecavité d9 canal Vols/n: (400 KHZ): 65 dB

Fléponse en frequents: 40 a 15.000 Hz

Separation sréréo: 35 dB

Rapport de capture: 2.0 as

[Syntoniseur AM]

Sensibilité' 20 0V

Sélectlvité: 35 d5

SEOTION CASSETTE

Flea/age at scintillement: 0,1 1% (WRMS)
Durée de délilemcnt rapids: 100 s (060)
Reponsa en Iréquence: 50 a 14.000 Hz (13 dB)
Rapport signamelt: 52 an

Separation stéréa: 40 dB

34