Jvc KSRT 505 R Service Manual

Page 1

KS - RT505R B/E/G/GE/GI

JVB

SERVICE

MANUAL

KS - RT505 R B/E/G/GE/Gl

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Area Sulfix
B .............................. U.K.
E -------- Continental europe
G ....................... Germany
GE ~~~~~~~~ Eastern Europe
Austria and Switziand
contents G1 ............................. italy
I .Features ........................................ Page2 [Standard schematic diagram ................... 25
I Specifications --------------------------------------- 2 @Locadon of p.c.board parts and parts list 28
I .lnstructions ........................................... 3 Exploded view of enclosure assembly
[Location of main parts ............................ 13 and parts list ................................. 33
.Removal of main parts -------------------------- 15 Exploded view of mechanism
I'Main adjustment ................................... 17 assembly and parts list .......................... 34
@Block diagram .................................... 21 @Packing illustration and parts list ............... 35
No.49266

May 1995

Page 2

KS - FlT505R B/E/G/GE/Gl

FEATURES

0 Detachable Control Panel

0 Radio Data System (R08)

0 AM/FM Stereo PLL Synthesizer Tuner

o lastation Preset Tuning (FM-12, AM-G)

o Seek/Manuel Tuning

- Strong-station Sequential Memory (SSM)

0 U»Tum Auto-Reverse Mechanism

0 4-Channel Amplifier System

0 Maximum Power Output 0t 8 watts per channel
(Front)/8 watts per channel (Rear)

0 Sound Control Memory

0 Digital Clock Display

0 Line Output Terminal

0 Cleaning TheHead
Heads are important as they pick up sound.
When they become dirty, the lollowing
symptoms become noticeable:
o The sound quality ls reduced.
0 The sound level is decreased.
nThe sound can be heard intermlttently.

(Sound drop occurs.)

These are NOT malfunctions. However. before
these symptoms appear, clean the heads alter
every 10 hours ol use using a wetAtyoe head
cleaning tape, available lrom an audio store.
For more details, refer to the Instructions ol the
Head Cleaning Tape.

MAINTENANCE

l

SPECIFICATIONS

l

Auolo'mpunzn secrton ,

Maximum Power Output: (Front) 3 watts oercttannel
(Rear) 8 watts per channel

Continuous Power output (RMs): (From) 3 watts per
channet into 4 0. too to 20,000 Hz at no more than
03% total harmonic detonimt (Rear) 3 watts per
dtannet'mto A n, 100 to.20.000 Hz at no more than
0.8% total harmonic distortion,

Load Impedance: 4 :2 (4 to 3 Q allowance)

Tone Control Range
53551111 68 at 100 Hz
Treble: :10 dB at 10 kHz

Frequency Response: 40 to 20,000 Hz

Signal-tattoos Ratio: 70 dB

Line-Out Level/Impedance: 0,5 Vl20 kn load
(250 nwblm)

RADIO SECTION
Frequency Range
FM: 37.5 to 108.0 MHz
AM: 522 to 1,620 kHz
[FM Tuner]
Usable Sensitivity: 121 Get ( L1 [JV/75 Q)
50 dB Ouieting Sensitivity: 16.3 GB! (1.8 )lV/75 .0)
Alternate Channel Selectivity: (400 kHz): 65 65
Frequency Response: 40 to 15.000 Hz
Stereo Separation: 30 dB
Capture Ratio: 1.5 dB
(AM Tuner]
Sensitivity: 20 (N
Selectivity: 35 dB

CASSETTE DECK SECTION

Wow 8t Flutten 0.11%(WRMS)

Fast-Wind Time: 100 sec. (060)

Frequency Response: 50 to 16,000 Hz (a GE)
Signal-toNoise Ratio: 52 dB

Stereo Separation: 40 dB

GEN ERAL

Power Requirement
Operating Voltage: DC 144 volts (1 l to 16 volts
allowance)
Grounding System: Negative ground

Dimensions (W x H X D) Installation Size: l82 X 52 x
152 mm (7-3/l6" x 2-1116" x 6")
Panel Size: 89 x 58 x 14 mm
(7-1/2" X 25/16" x 5/8")

Gross Weight: 1.9 kg (4.2 lbs)

Design and specifications subject to change without
notice.

- Head cleaning tape
~ Kopireinlgungscassette
. Cassette tie nettoyage de (files

0 Cleanlrtg The Connector
II the control panel is frequently detached, a
poor connection may occur with the control
panel holder. To minimize this possibility,
periodically wipe the connector with a cotton
swab or cloth moistened with alcohol, being
caretul not to damage the connector terminals.

Your unit requires very little attention, but you will
be assured of top penormance only it you lollow
the above notes,

2 (No. 49266)

Page 8

KS - RTSOSR B/E/G/GE/GI

TAPE OPERATION

Operate In the order shown.

0 POWER 0 0 PROG
es <<

Switch an insert a cassette. Select program,

SEL BASITRE/FAD/BAL/LOU DNOL

fi>WE>; i

oSOUND OFF/BEAT/SOFT/POP

some

Select.

How To Fast-Fomard And Rewind Tapes

Press the FF button to iast-tomard the side
being played: when the tape end is detected, the
tape is reversed and playback starts {mm the
beginning oi the other side.

Press the REW button to rewind the tape to its
beginning. where playback restarts.

Lightly press the FROG button to start playback
from the current position during tast-Iorward or
rewind.

RADIO OPERATION

i

Operate In the order shown.

Auto-Reverse Mechanism

When the tape reaches its end, this mechanism
automatically switches over to play back the
other side. To listen to the other side of the tape
during playback, press the PHOG button. The
change in direction can be checked in the Tape
Direction indicator.

0 9

0 POWER
IM A \ I /
l:> M :
i v .
i gave
Swrtch on. Select band, Set Manual mode, Tune.
0 VOL SEL BAS/TRE/FAD/BAULOUDNOL o SOUND OFF/BEATISOFT/POP
e. 1:2
* E> :>
7"? dim Select,

a (No. 49266)

Page 22

KS - RTSOSR B/E/G/GE/GI

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22 (NO. 49266)