CD-DP2400H (serv.man19) — Sharp Audio Service Manual (repair manual)

Model
CD-DP2400H (serv.man19)
Pages
68
Size
4.11 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-dp2400h-sm19.pdf
Date

View Sharp CD-DP2400H (serv.man19) Service Manual online

No. S9166CDDP2400
 CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................  2
IMPORTANT SERVICE NOTES ........................................................................................................................................  2
SPECIFICATIONS .............................................................................................................................................................  3
WIRING OF PRIMARILY SUPPLY LEADS .......................................................................................................................  3
NAMES OF PARTS ...........................................................................................................................................................  4
OPERATION MANUAL ......................................................................................................................................................  6
DISASSEMBLY ..................................................................................................................................................................  8
REMOVING AND REINSTALLING THE MAIN PARTS ...................................................................................................  11
ADJUSTMENT .................................................................................................................................................................  12
TEST MODE ....................................................................................................................................................................  15
NOTES ON SCHEMATIC DIAGRAM ..............................................................................................................................  16
BLOCK DIAGRAM ...........................................................................................................................................................  17
SCHEMATIC DIAGRAM ................................................................................................................................................... 20
WIRING SIDE OF P.W.BOARD ........................................................................................................................................ 32
VOLTAGE ........................................................................................................................................................................  40
WAVEFORMS OF CD CIRCUIT ......................................................................................................................................  41
TROUBLESHOOTING .....................................................................................................................................................  42
FUNCTION TABLE OF IC ................................................................................................................................................  46
FL DISPLAY ...................................................................................................................................................................... 52
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
SERVICE MANUAL
SHARP CORPORATION
CD-DP2400H Mini Component System consisting of CD-DP2400H
(main unit), CP-DP2400H (front speakers), GBOXS0072AWM1 (centre
speaker) and GBOXS0073AWM1 (surround speakers).
CD-DP2400H
 • Note for users in UK
Recording and playback of any material may require consent which SHARP
is unable to give. Please refer particularly to the provisions of Copyright Act
1956, the Dramatic and Musical Prefomers Protection Act 1956, the
Preformers Protection Acts 1963 and 1972 and to any subsequent statutory
enactments and orders.
MINI COMPONENT SYSTEM
MODEL
 CD-DP2400H
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic", and the double-D symbol are trademarks of Dolby Laboratories.
CD-DP2400H
– 2 –
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN.  
DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH  
OPTICAL INSTRUMENTS.
WARNUNG-UNSICHTBARE LASERSTRAHLUNG WENN GERÄT
GEÖFFNET. NICHT IN DIE STRAHLUNG SCHAUEN ODER
DIREKT MIT OPTISCHEN HILFSMITTELN BETRACHTEN.
ATTENTION-RAYON LASER INVISIBLE EN CAS D’OUVERTURE.
NE PAS REGARDER LE FAISCEAU DIRECTEMENT OU AVEC DES
INSTRUMENTS OPTIQUES.
Precaution to be taken when replacing and servicing the
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class I Requirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam
(1) When the cabinet has been removed, the power is turned
on without a compact disc, and the Pickup is on a position
outer than the lead-in position, the Laser will light for several
seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and
replacement service parts have already been adjusted prior
to shipping.
(3) No adjustment to the Laser Power should be attempted
when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens
at any time.
(5) CAUTION - Use of controls or adjustments, or performance
of procedures other than those specified herein may result
in hazardous radiation exposure.
NG: The “NG” lamp lights and the buzzor sounds.
OK: The “GOOD” lamp lights.
Judgment
Unit
Set current (Cutoff current)
Set time
Set name
Withstanding Voltage Tester
Test voltage
Set value
4,240 VPEAK
3,000 VRMS
6 secs
4 mA
Before returning the unit to the customer after completion of a
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
IMPORTANT SERVICE NOTES
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
WITHSTANDING
VOLTAGE TESTER
Screw
Figure 2
SAFETY PRECAUTION FOR SERVICE MANUAL
– 3 –
CD-DP2400H
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO
THE OPERATION MANUAL.
Specifications for this model are subject to change without prior
notice
 
SPECIFICATIONS
General
Amplifier
CD player
Tuner
Cassette deck
Front speaker
Centre speaker
Surround speaker
Power source
AC 230 V, 50 Hz
Power consumption
108 W
Dimensions
Width: 270 mm (10-5/8") 
Height: 330 mm (13") 
Depth: 332 mm (13-1/16")
Weight
8.0 kg (17.6 lbs.)
Output power
Front speakers:
RMS: 60 W (30 W + 30 W) (10 % T.H.D.)
RMS: 46 W (23 W + 23 W) (0.9 % T.H.D.)
Centre speaker:
RMS: 20 W (10 % T.H.D.)
RMS: 16 W (0.9 % T.H.D.)
Surround speakers:
RMS: 20 W (10 W + 10 W) (10 % T.H.D.)
RMS: 16 W (8 W + 8 W) (0.9 % T.H.D.)
Output terminals
Front speakers: 6 ohms
Centre speaker: 6 ohms
Surround speakers: 12 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Input terminals
Video/Auxiliary (audio signal): 500 mV/47 kohms
Type
3-disc multi-play compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser pickup
D/A converter
1-bit D/A converter
Frequency response
20 - 20,000 Hz
Dynamic range
90 dB (1 kHz)
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
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
0.3 % (WRMS)
Type
2-way type speaker system
5 cm (2") Tweeter
13 cm (5-1/4") Woofer
Maximum input power 60 W
Rated input power
30 W
Impedance
6 ohms
Dimensions
Width: 220 mm (8-11/16") 
Height: 330 mm (13") 
Depth: 217 mm (8-9/16")
Weight
3.0 kg (6.6 lbs.)/each
Type
10 cm (4") full-range speaker
Maximum input power 40 W
Rated input power
20 W
Impedance
6 ohms
Dimensions
Width: 260 mm (10-1/4") 
Height: 140 mm (5-1/2") 
Depth: 155 mm (6-1/8")
Weight
0.9 kg (2.0 lbs.)
Type
10 cm (4") full-range speaker
Maximum input power 20 W
Rated input power
10 W
Impedance
12 ohms
Dimensions
Width: 200 mm (7-7/8") 
Height: 93 mm (2-11/16") 
Depth: 170 mm (6-3/4")
Weight
0.5 kg (1.1 lbs.)/each
If any one of the bands shoen in Fig.3 is removed for some
reason,be sure replace it to the original position and same
appearance as before.
WIRING OF PRIMARILY SUPPLY LEADS
AC Power 
Supply Cord
Power 
Transformer
Brown
Blue
Nylon Band 80mm
92LNBAND1318A
Figure 3
CD-DP2400H
– 4 –
NAMES OF PARTS
Front panel
1. Disc Number Select Buttons 
2. Disc Skip Button 
3. On/Stand-by Button 
4. Clock Button 
5. Timer/Sleep Button 
6. Dimmer Button 
7. Disc Tray Open/Close Button 
8. Disc Tray 
9. Volume Control 
10.Tape 2 Cassette Compartment 
11.Tape 1 Cassette Compartment 
12.Normal Button (with Indicator)   
13.Bypass Button (with Indicator)   
14.Extra Bass/Demo Mode Button  
15.Phantom Button (with Indicator) 
16.Equalizer Mode Select Button 
17.Headphone Socket 
18.Tuning and Time Down Button   
19.CD Button 
20.Tape (1   2) Button 
21.Tuning and Time Up Button 
22.Tuner (Band) Button 
23.Video/Auxiliary Button 
24.CD Track Down or Fast Reverse, Tape 2 Rewind, 
Tuner Preset Down Button 
25.Memory/Set Button 
26.CD or Tape Stop Button (with Indicator) 
27.Timer Set Indicator 
28.CD Play or Repeat, Tape Play Button (with Indicator) 
29.Tape 2 Record Pause Button 
30.CD Track Up or Fast Forward, Tape 2 Fast Forward, 
Tuner Preset Up Button 
1
7
8
9
10
11
2
3
4
5
6
18
21
22
23
19
20
24 25 26 27 28 29 30
12
15
16
17
13
14
Display
1. Extra Bass Indicator
2. Disc Number Indicators
3. Spectrum Analyser/Volume Level Indicator
4. Tape 2 Record Indicator
5. Memory Indicator
6. CD Pause Indicator
7. Tape Play Indicator
8. CD Play Indicator
9. CD Repeat Play Indicator
10.Music Schedule Indicator
11.Sleep Indicator
12.FM Stereo Mode Indicator
13.FM Stereo Receiving Indicator
14.Timer Recording Indicator
15.Timer Play Indicator
 
 
Rear panel
1. FM 75 Ohms Aerial Socket 
2. AM Loop Aerial Socket 
3. Video/Auxiliary (Audio Signal) Input Sockets 
4. AC Power Lead 
5. Front Speaker Terminals  
6. Centre Speaker Terminals 
7. Surround Speaker Terminals
2
1
3
4
15
6
5
7 8 9
10
11 12 13 14
4
3
3
1
2
5 6 7
Page of 68
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Here you can view online or download Sharp CD-DP2400H (serv.man19) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp CD-DP2400H (serv.man19) System. Information contained in Sharp CD-DP2400H (serv.man19) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).