JVC RC-QC7 Service Manual page 18

(9€001'ON) 84
Notes:
© When the volume setting is set to "VOL ~" (volume level is not specified),
the timer piayback volume is at the level used before setting the timer. (In
this case, the fade-in mode does not function.)
© To stop during timer playback, press the /I button to switch the unit
off.
© To get an extra 5 minutes of sleep...
When timer playback starts, press the TIMER button. The power
is switched off and timer playback restarts after 5 minutes (snooze
function).
TIMER
Sleep timer operations (using the remote control unit)
A. Use this when you want to fall asleep while listening to a
tape, broadcast or CD.
@ Set to the required source and tune (broadcast) or play back (CD or
tape).
@® Press the SLEEP button to set the sleep time.
SLEEP
1a SLEEPlis shown in the display.
Say x 7 Nee N17
"30-00 + "90 + Jed-5
7S 7. Zits 7yNn
Source mode display (Releasing the sleep mode)
© Sleep time settings of 30, 60, 90 or 120 minutes can
be set, When you release the SLEEP button, the
source Is displayed atter 5 sec.
© The sleep timer operation will start and the power will be switched off
after the specified time.
© Checking the sleep time
When the SLEEP button is pressed, the remaining sleep time is
displayed. If it is pressed again, a new sleep time can be set.
@ To cancel the sleep timer operation
Press the /I button to switch the power off or press the SLEEP button
until the sleep time indicator disappears.
B. To fall asleep while listening to a tape, broadcast or CD
and to perform timer playback the following morning
@ Set the timer. (Refer to "Setting the timer" on page 23.)
@ Set to the required source (broadcast, tape or CD).
@ Press the SLEEP button to set the sleep time.
SLEEP
*
\ Ise \ rd N A , les
-30-—--68- > -99- > -i2d-
7 1. eT PONS 7 ~N
Source mode display (Releasing the sleep mode)
@ Any source can be selected for sleep timer operation and timer playback.
For example;
* CD play for sleep timer operation and broadcast reception for timer
playback.
+ Tape playback for sleep timer operation and CD play for timer
playback.
However, when broadcast reception is selected for both sleep timer
operation and timer playback, the station you heard at night will be tuned
to the following morning.
( TROUBLESHOOTING °
( MAINTENANCE
eM
When the tape is punning, magnetic powder and dust naturally accumulate
on the heads, capstan and pinch roller. When they become too dirty...
Sound quality deteriorates.
@ The output sound level drops.
@ Previously recorded tape is not completely erased.
Recording is not performed satisfactorily.
Therefore, you should clean the heads, etc. after every 10 hours of use
for optimal recording conditions.
Cleaning the heads, capstan and pinch roiler
Open the cassette holder.
Clean the heads, pinch roller and capstan.
For effective cleaning, use a cleaning kit available from an audio store.
After cleaning, be sure that the cleaning fluid has dried completely before
loading a cassette.
26
Capstan shaft(s) Pinch rolter(s)
Erase head Combination record/play head
Cautions:
1. Keep magnets and metallic objects away from the head.
If the head becomes magnetized, noise will increase and the sound
will deteriorate. Demagnetize the head every 20-30 hours of use with
ahead eraser (available from an audio store). (When demagnetizing
the head, the /1 button should be set to STANDBY.)
2. Do not use anything other than alcohol for cleaning.
Thinner and benzine will damage the rubber pinch roller.
What appears to be troubie is not always serious. First make sure...
@ When abnormal operation occurs.
*tUnplug the AC power cord from the AC outiet. Then reconnect and
switch the /1ON.
© Power cannot be turned on.
* 4s the power cord unplugged?
© No sound from the speakers.
* Ase headphones connected?
{CD Player Section)
© The CD player does not play.
*Is the CD upside down?
* 4s the CD dirty?
© Acertain portion of the CD does not piay correctly.
* Is the CD scratched?
© CD playback Is not performed when the CD CONTROL button is
pressed.
"Is program mode engaged?
@ When the operation stops.
* Switch the &/| standby and ON again.
{Cassette Deck Section)
@ Playback sound is at a very low level.
* Is the head dirty?
@ The ONE TOUCH REC button does not function.
* Have the safety tabs of the cassette been broken off?
(Tuner Section)
@ Reception ts noisy.
* Try adjusting the antenna.
(Timer Section)
© Timer operation does not start.
* Is the current time set correctly?
* |g the timer mode indicator (©) displayed?
(Remote Control)
© Remote control Is impossible.
* Are the batteries in the remote control exhausted?
*ls the remote sensor section exposed to bright light (direct sunlight,
etc.)?
Note:
Before making an important recording, be sure to make a test recording
first to check that the deck, etc. is working correctly.
SPECIFICATIONS
Type : Compact disc player
system : Non-contact optical pickup
Number of channels: 2 channels
Frequency response : 20 Hz - 20,000 Hz
Signal-to-noise ratio : 90 dB
Wow & flutter : Less than measurable kmit
Radio section
Frequency range : FM 87.5-108 MHz
AM 522-1,629 kHz
Antennas : Telescopic antenna for FM
Ferrite core antenna for AM
Tape deck section
Track system : 4track 2-channet stereo
Motor : Electronic governor DC motor for capstan
Heads : Deck A; Hard permalioy head for playback
Deck 8; Hard permalloy head for recording/playback, 2
gap ferrite head for erasure (Combination head)
Frequency response : 60 - 14,000 Hz
(with CrO2 tape)
Wow & flutter : 0.15% (WRMS)
Fast wind time : Approx. 130 sec (C-60 cassette)
General
Speakers
(Impedance) 2 10cm (3 -18/16 inch) x 2 (3.9).
Power output 1 14.W(7W +7 W) at3 & (Max)
10 W (5 W+5 W) at 3 Q (10% THD)
Input terminals : AUX IN (300 mV/47 kQ)
Output terminals. : PHONES (Output level: 0-18 mW/ch, 32 Q, Matching
impedance: 16 Q - 1 kQ)
Power requirements ; AC 230 V, 50 Hz
Ext. DC 12 V (car battery via optional CA - A120E car
adapter)
Power consumption : 19 W (with /1SW ON)
3 W (with 6/1SW STANOBY)
Dimensions > 480 (W) x 179 (H) x 283 (D)
including knobs
Weight + 6.4 kg (with batteries)
5.6 ky (without batteries)
Accessories provided: AC power cord x 1
Remote control unit (RM-RXQC7BKE) x 1
"RG/AA (15F)* batteries x 2 (for the remote contro!)
Design and specifications are subject to change without notice.
27
| 9/N3/3/a 490-9Ou