Jvc RS 55 L Service Manual

Page 1

MODEL

FI-SEEL

STEREO RECEIVER

No. 2504
Aug. 1979

Li -#

Page 2

1. Specifications

FM Tuner Section

Tuning Range

Signal to Norse Ratio : 45 d8
Distortion : 0.5%
Selectivrty - 46:13 :9 kHz

LW Tuner Section (DIN)

:87.6 MHI - 108 MHz

Tuning Range

. 150 kHz - 350 kHz

Usable Sensttwrty IlHFl ' 12.2 681 Usable Sensrtivity : 40 V
1.1 uV.-'75 £2 Signal to Noise Ratio . 45 dB
50 dB Otrieting Sensitivrty Distortion : 0.5 "is
Mono : 15.9 dBl 11.7 pr75 (.11 Selectivttv :50 dB 19 kHz
Stereo 38 2 Lilli (22 pVx7512l Amplifier Section
Distortion RMS Power 1 40 watts per channel at 8 ohms
Monti ' 0.15 '1. (1 kHz) (Both channels driven,
Stereo '030 i. ll kH11 from 20 Hz to 20 kHz)

Siurial to Noise Ratio

HMS Power
(Both channels rlriven

Morin : 78 dB A-Ntxt weighted (72 dB, DIN,
Stereo : 88 dB A-Nut weighted (63 dB, DlNl
Select-wty : 55 :13, 3.400 kHz
U15 (3, 300 kHz. DIN)
Cnptutu Rilllfl : l (1118
IF Rewclion f 90 d8 ill 98 MHz

lmrigu Ruitiction

: 42 watts per channel at 8 ohms
50 watts per channel at 4 ohms

ill 1 kHz)

Total Harmonic
Dlslortion

Signal-to-Noiw Ratio

(IHF shortcrrcuit

: 0.03 Xi at rated power (0.008 'K.
at hall ralud power, 1 kHz)
PHONO 77 dB
TAPE PLAY 98 dB

Stereo Separation
MW Tuner Suction
Tuning Plum".-
Uru'tltlu Settsrtivrty

: 55 «18 thB MHz A network)

:45 dB at 1 kHz DIMENSIONS : H: 109 mm M-IM")
W: 422 mm [16-5l8"l

.525 kHr , 1605 kill 0: 403 mm llS-7!B"l

. 300 uVIm. 50 pV (External Anmnnn) WE'GHT WU .8.3 Hi i '33 lbsl

SMClm rum: m FM Iirmrr section um bawd upon IHF standard.
Burgh and IDKHACJHUILI whine! m clumw without rrutrco.

2. Names of Parts and Their Functions

W 21 -

lit-is. vlS

V

l ~%"~'Tii~'r:: cw}: =-~2§-

s13 {milk nun-«uni arm:

it, POWER switch

ON: Press to turn the power on. During the
first 3 or 4 seconds alter the POWER
switch is turned on, no sound will be
heard until you hear a click"ol the relay
operation. This is not due to any detect
in the unit. The built-in power protection
circuit operates to mute the switching
noise [or speaker protection.

When the power cord is plugged into the
AC outlet, the standby indicator
MEMORY indicator 2i]: lights to show
that the memory circuit is operating. As
long as this indicator remains L the
preset stations are not suhiact to cancella-
tion or alteration The preset data are
maintained even in the case ol power
failure or when the power cord is discon
nectetl, ii the period at nonapplietlpowur
does not exceed a couple of days

STAND BY:

2,

Fl]. I

it] it 41' ital .rt:
52,: POWER indicator

This LED lights when the POWER switch is pressed to
ON.

Headphone jack (PHONES)

Plug stereo headphones into this jack lor private listen-
ing and recording monitoring.

SPK-1 switch

Press to swttch the speakers connected to the SPEAK-
ER SYSTEM 1 terminals on or ofl.

'15,: SPK-2 switch

Press to switch the speakers connected to the SPEAK-
ER SYSTEM 2 terminals on or oil.

FM MUTING switch

The PM muting circurt selects the strongest signal at a
given frequency and filters out the weaker signals to
improve FM reception. Press this switch to ON In
strong signal areas to eliminate interstation noise and
unwanted signals. Leave this switch in its out" (OFF)
position if FM reception is substandard due to insufli~
ctent Signal strength.

tog}

(3-1

R-SESL
No. 2504