DOWNLOAD Sharp CD-C491H Service Manual ↓ Size: 1.64 MB | Pages: 48 in PDF or view online for FREE

Model
CD-C491H
Pages
48
Size
1.64 MB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Audio / System
File
cd-c491h.pdf
Date

Sharp CD-C491H User Manual / Operation Manual ▷ View online

TROUBLESHOOTING
If a problem occurs
If this unit functions abnormally during operation, first check the following items. If the unit continues to function abnormally,
or if an abnormality appears other than those listed below, set the player in the stand-by mode and disconnect the AC
power plug, then consult your SHARP dealer or service centre.
SYMPTOM
POSSIBLE CAUSE
REMEDY
No sound is heard.
Sound is barely heard.
Are each of the speakers and any
external units connected properly?
Is the volume too low?
Is the correct function mode se-
lected?
Was each item set up properly in
the "SET UP" operation (page 31)?
Connect the speakers and external
unit properly.
Increase the volume. The volume
control will change the audio level
slowly.
Select the correct function mode.
Return the current settings to their
initial condition. (Press the MENU
and CLEAR buttons.)
Although a DVD player is connected,
no sound is heard.
Is the power to the DVD player con-
nected properly?
Is a digital signal being output from
the DVD player?
Is "DVD 1 NO" being displayed?
Is "DVD 2 NO" being displayed?
Does the type of DVD digital signal
appear in the display?
Is a disc with a sampling frequency
of 96 kHz being played?
Is a Dolby digital 2/0 (monaural) sig-
nal being played with the surround
mode set to NORMAL and without
a centre speaker connected?
Connect the power to  the DVD
player.
Make sure the DVD player is output-
ting a digital signal.
The DVD player is not connected to
the DVD 1 socket, or the optical dig-
ital lead is unplugged. Connect them
correctly.
The DVD player is not connected to
the DVD 2 socket, or the coaxial dig-
ital lead is unplugged. Connect them
properly.
If the type of digital signal is not dis-
played, the signal cannot be played
using the digital inputs. Select an-
other disc.
A digital signal with a sampling fre-
quency of 96 kHz cannot be played
using this unit. In this case, make an
analogue connection.
This signal will not be output if the
centre speaker is not connected.
Connect the centre speaker.
The balance between the left and
right channels is bad.
Are the front and surround speakers
connected to the correct left and
right channels?
If an external unit is connected, are
the left and right channels con-
nected properly?
Connect the left and right channels
correctly.
Hum or excessive noise
Is the speaker wire plugged in cor-
rectly?
Does the speaker wire run past other
electronic equipment?
Are the plugs or terminals dirty?
Plug in the speaker wire correctly.
Move the speaker wire away from
other equipment.
Clean the plugs and terminals.
No sound is heard, or the sound is
too low, from the centre or surround
speakers.
Is the "SPEAKER SIZE" item set to
"NO" in the "SET UP" operation
(page 31)?
Is the volume too low?
Set it to "YES".
Increase the volume.
CD-C491H(SUK) TINSE0229AWZZ
44
SYMPTOM
POSSIBLE CAUSE
REMEDY
No surround effect is obtained.
Is the BYPASS mode selected?
Are the headphones plugged in?
Select any surround mode except
BYPASS.
When the headphones are plugged
in, the surround mode will be can-
celled.
No picture is seen on the TV.
Is the correct function selected?
Select the correct function.
(No video signal is output except
when DVD 1, VCR 1, DVD 2 or VCR
2 is selected.)
The remote control does not func-
tion or does not operate properly.
The batteries (polarity) are not in-
serted properly.
The batteries in the remote control
are dead.
The remote control is being operated
from an incorrect distance or angle.
Insert the batteries properly.
Replace the batteries.
Operate it within a range of 0.2 m
(8") to 6 m (20’) and within an angle
of 15˚ to either side of centre.
The power cannot be turned on from
the remote control.
Is the AC power lead plugged in?
Connect the AC power lead.
"PROTECT" appears in the display,
and no sound is heard.
Is the speaker wire shorted?
Was the unit used at high volume
for many hours?
Plug in the speaker wire properly.
Set the unit in the stand-by mode
and wait for a while.
No sound is heard from the sub
woofer.
Were the headphones plugged in
and then unplugged?
When the headphones are plugged
in, the sub woofer is cancelled. After
pulling out the headphone plug, if
sound can’t be heard from the sub
woofer, press the equalizer button
(or set the unit in the stand-by mode
and then turn it back on, or change
the surround mode).
(Continued)
TAPE1
TAPE2
MAINTENANCE
Internal care
Dirty heads, capstans or pinch rollers can cause poor
sound and tape jams. Clean these parts with a cotton
swab moistened with commercial head/pinch roller cleaner
or isopropyl alcohol.
After long use, the deck’s heads and capstans may be-
come magnetised, causing poor sound. Demagnetise
these parts once every 30 hours of playing/recording time
by using a commercial tape head demagnetiser. Read the
demagnetiser’s instructions carefully before use.
External care
Periodically wipe the cabinet with a soft cloth and a diluted
soap solution, then wipe with a dry cloth.
Do not use chemically treated cleaning cloths or other
chemicals.
CD-C491H(SUK) TINSE0229AWZZ
45
SPECIFICATIONS
As part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for
product improvement without prior notice. The performance specification figures indicated are nominal values of production
units. There may be some deviations from these values in individual units.
General
Power source:
AC 230 V, 50 Hz
Power consumption:
190 W
Dimensions:
Width; 270 mm (10-5/8")
Height; 316 mm (12-1/2")
Depth; 343 mm (13-1/2")
Weight:
10.5 kg (23.2 lbs.)
Amplifier section
Output power:
Front speakers;
MPO;
142 W (71 W + 71 W)
(10 % T.H.D.)
RMS;
80 W (40 W + 40 W)
(10 % T.H.D.)
72 W (36 W + 36 W)
(0.9 % T.H.D.)
Centre speaker;
MPO;
71 W (10 % T.H.D.)
RMS;
40 W (10 % T.H.D.)
36 W (0.9 % T.H.D.)
Surround speakers;
MPO;
142 W (71 W + 71 W)
(10 % T.H.D.)
RMS;
80 W (40 W + 40 W)
(10 % T.H.D.)
72 W (36 W + 36 W)
(0.9 % T.H.D.)
Sub woofer;
MPO;
71 W (10 % T.H.D.)
RMS;
40 W (10 % T.H.D.)
36 W (0.9 % T.H.D.)
Output terminals:
Front speakers; 8 ohms
Centre speaker; 8 ohms
Surround speakers; 8 ohms
Sub woofer; 8 ohms
Monitor; 1 Vp-p/75 ohms
Headphones; 16 - 50 ohms
(recommended; 32 ohms)
Input terminals:
DVD 1 (Digital); Optical
DVD 2 (Digital); Coaxial
VCR 1/AUX 1; 500 mV/47 kohms
VCR 2/AUX 2; 500 mV/47 kohms
DVD 1/VCR 1; 1 Vp-p/75 ohms
DVD 2/VCR 2; 1 Vp-p/75 ohms
Tuner section
Frequency range:
FM; 87.5 - 108 MHz
MW; 522 - 1,620 kHz
LW; 153 - 281 kHz
Cassette deck section
Frequency response:
50 - 14,000 Hz (Normal tape)
Signal/noise ratio:
55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/
playback)
Wow and flutter:
0.15 % (WRMS)
Compact disc player section
Type:
3-disc multi-play compact disc
player
Signal readout:
Non-contact, 3-beam semi-
conductor laser pickup
D/A converter:
1-bit D/A converter
Frequency response:
20 - 20,000 Hz
Dynamic range:
100 dB (1 kHz)
Front speaker section
Type:
3-way, 130 mm (5-1/8") woofer,
50 mm (2") tweeter and super
tweeter
Maximum input power: 80 W
Impedance:
8 ohms
Dimensions:
Width; 220 mm (8-11/16")
Height; 316 mm (12-1/2")
Depth; 284 mm (11-3/16")
Weight:
3.4 kg (7.5 lbs.)/each
Centre speaker section
Type:
2-way, 120 mm (4-3/4") woofer
and 50 mm (2") tweeter
Maximum input power: 80 W
Impedance:
8 ohms
Dimensions:
Width; 270 mm (10-5/8")
Height; 142 mm (5-5/8")
Depth; 220 mm (8-11/16")
Weight:
1.8 kg (4.0 lbs.)
Surround speaker section
Type:
2-way, 100 mm (4") woofer and
50 mm (2") tweeter
Maximum input power: 80 W
Impedance:
8 ohms
Dimensions:
Width; 200 mm (7-7/8")
Height; 134 mm (5-5/16")
Depth; 240 mm (9-1/2")
Weight:
1.4 kg (3.1 lbs.)/each
Sub woofer section
Type:
160 mm (6-1/2") woofer
Maximum input power: 80 W
Impedance:
8 ohms
Dimensions:
Width; 220 mm (8-11/16")
Height; 316 mm (12-1/2")
Depth; 294 mm (11-5/8")
Weight:
3.8 kg (8.4 lbs.)
CD-C491H(SUK) TINSE0229AWZZ
46
TERMS OF GUARANTEE
Sharp Electronics (UK) Ltd. ("Sharp") guarantees to provide for the repair, or at its option the replacement, of this
product subject to the conditions listed below:-
1.
This guarantee shall only apply to faults which are due to inferior workmanship or materials. It does not cover
faults or damage caused by accident, misuse, fair wear and tear, neglect, tampering with the product, or repair
other than by a Service Facility appointed by Sharp.
2.
As this product is intended for private domestic use only, the guarantee will not apply if the product is used
in the course of a business, trade or profession.
3.
To benefit from this guarantee, any fault which occurs must be notified to Sharp, or its appointed Service
Facility within one year from the date this product was purchased. Proof of purchase must be provided.
4.
The guarantee does not cover carriage costs, jewelled styli, audio tapes, compact discs or batteries.
5.
In the unlikely event of this product requiring repair, please contact the supplier from whom it was purchased.
Where this is not possible, please contact the Sharp Customer Information Centre on the telephone number
given below.
6.
No person has any authority to vary the terms or conditions of this guarantee.
7.
This guarantee is offered as an additional benefit to your statutory rights, and does not affect these rights in
any way.
If you have any difficulty operating this product, or would like information on other Sharp products, please telephone
the Sharp Customer Information Centre on the number given below.
Sharp Customer Information Centre - Telephone 0345 125387
SHARP ELECTRONICS (U.K.) LTD.
Sharp House, Thorp Road, Newton Heath, Manchester, M40 5BE
SHARP CORPORATION
TINSE0229AWZZ
A9807.YT
CD-C491H(SUK) TINSE0229AWZZ
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