HT-DV40H (serv.man4) — Sharp Audio Service Manual (repair manual)

Model
HT-DV40H (serv.man4)
Pages
127
Size
16.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / Home Theatre
File
ht-dv40h-sm4.pdf
Date

View Sharp HT-DV40H (serv.man4) Service Manual online

HT-DV40H
 
SERVICE MANUAL
No. S0752HTDV40HH
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
PRECAUTIONS FOR USING LEAD-FREE SOLDER
CHAPTER 1. GENERAL DESCRIPTION
[1]  Safety Precaution For Service Manual ......... 1-1
[2]  Important Service Notes (for U.K. only) ......... 1-2
[3] Specifications................................................ 1-2
[4]  Names Of Parts ............................................
........ 1-4
CHAPTER 2. ADJUSTMENTS
[1] Servo 
Section ............................................... 2-1
[2] Test 
Mode ..................................................... 2-2
[3] DVD 
Test 
Mode............................................. 2-3
[4]  DVD Firmware Update Test Mode ................ 2-4
[5]  DVD Region Code Setup 
( For Service Centre ) .................................... 2-5
CHAPTER 3. MECHANISM BLOCKS
[1]  Caution On Disassembly ............................... 3-1
[2] Removing 
And 
Reinstalling The Main Parts . 3-4
CHAPTER 4. DIAGRAMS
[1]  Main Block Diagrams ..................................... 4-1
[2]  DVD/CD Block Diagrams .............................. 4-3
[3]  Power Block Diagrams .................................. 4-5
CHAPTER 5. CIRCUIT DESCRIPTION
[1]  Waveforms Of DVD/CD Circuit...................... 5-1
[2] Voltage .......................................................... 5-2
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1]  Notes On Schematic Diagram....................... 6-1
[2]  Types Of Transistor And LED........................ 6-1
[3] Schematic 
Diagram ....................................... 6-2
[4]  Wiring Side Of PWB .................................... 6-12
CHAPTER 7. FLOWCHART
[1] Troubleshooting............................................. 7-1
CHAPTER 8. OTHERS
[1]  Function Table Of IC...................................... 8-1
[2] FL 
Display ..................................................... 8-8
[3]  Wiring Of Primary Supply Leads 
(for U.K. only) ................................................ 8-9
PARTS GUIDE
DVD CINEMA
HT-DV40H
MODEL
HT-DV40H DVD Cinema consisting of HT-DV40H
(main unit), CP-DV40H (front speaker) and
CP-SW40H (subwoofer system).
CONTENTS
l
 
Note for users in U.K.
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 Performers Protection Acts
1963 and 1972 and subsequent statutory enactments and
orders.
• In the interests of user-safety (Required by safety regulations in
some countries) the set should be restored to its original
condition and only parts identical to those specified be used.
SHARP CORPORATION
[ For Europe, U.K. ]
HT-DV40H
 – i –
Audio
XL-MP150
Service Manual
XLMP150
Market
E
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
Example:
Indicates lead-free solder of tin, silver and copper.
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire 
solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to
use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our
service station or service branch in your area.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder
and as it has poor solder wet ability, you may be apt to keep the soldering bit in contact with the PWB for
extended period of time. However, since the land may be peeled off or the maximum heat-resistance temperature
of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on
and off the power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after
every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
Ref No.
Description
Parts No.
"MAIN, POWER, DISPLAY, SCART, VIDEO OUT, DIGITAL IN, DVD, SUBWOOFER PWB" of this model employs
lead-free solder. 
The LF symbol indicates lead-free solder, and is attached on the PWB and service manuals. The alphabetical character 
following LF shows the type of lead-free solder.
by 40 C,
PWB-A
92LPWB6891MANS
MAIN
PWB-B
92LPWB6891PWRS
POWER (B1), DISPLAY (B2), SCART (B3), VIDEO OUT (B4), DIGITAL IN (B5)
PWB-C
92LPWB6891DVDS
DVD
PWB-D
92LPWB6891SWFS
SUBWOOFER
HT-DV40H
  1 – 1
CHAPTER 1:
 
GENERAL DESCRIPTION
[1] Safety Precaution For Service Manual
This product is classified as a CLASS 1 LASER PRODUCT.
WARNINGS
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 AGAINTS 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.   
[2] Important Service Notes (For U.K. Only)
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.
Set name
set value
Withstanding Voltage Tester
Test voltage
4,240 VPEAK
3,000 VRMS
Set time
6 secs
Set current (Cutoff current)
4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
WITHSTANDING
VOLTAGE TESTER
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.
 
HT-DV40H
 – 4
[3] Specifications
HT-DV40H
Main Unit
USB
Power source
AC 220 - 240 V ~ 50 Hz
Power
consumption
Power on: 82 W 
Power stand-by: 0.6 W
Output power
Front speaker: 
RMS: 150 W (75 W + 75 W) (DIN 45 324)
Subwoofer:
RMS: 100 W (DIN 45 324)
Frequency
range
FM: 87.5 - 108 MHz
Video output 
terminals
SCART output: SCART terminal x 1
Video output: RCA type x 1
S-video output: S-terminal x 1
Component video output: (Y/P
B
/P
R
) x 1
HDMI output : HDMI x 1
Audio input 
terminals
Optical digital input (DIGITAL 1): Square type x 1 
Optical digital input (DIGITAL 2): Square type x 1 
Analogue input : RCA type x 1 pair (L/R)
Audio output 
terminals
Front speakers: 4 ohms
Subwoofer: 12 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
Dimensions
Width: 300 mm (5-11/16") 
Height: 106 mm (8-5/16") 
Depth: 300 mm (9-39/64")
Weight
3.8 kg (6.8 lbs.)
USB host 
interface
 Complies with USB 1.1/2.0 (Full Speed)
 Mass-Storage-Class.
 Support Bulk only and CBI protocol.
 Support up to logic drives.
Support file
 MPEG 1 Layer 3
 MPEG 2 Layer 3
 WMA (Non DRM)
Bitrate support
 MP3 (32 - 320 kbps)
 WMA (64 - 160 kbps)
Other
 Maximum total number of MP3/WMA files is
 65 535.
 Maximum total number of folders is 512 
INCLUSIVE of root directory. (Folders which 
have non playable files also counted.)
 The  ID3TAG  information  supported  are 
TITLE, ARTIST and ALBUM only.
 Support ID3TAG version 1 and version 2.
File system 
support
 Support USB devices with Microsoft 
Windows/DOS/FAT 12/FAT 16/FAT 32.
 2 kbyte block length for sector.
DVD player
Speaker
Subwoofer
Signal system
PAL/NTSC colour
Supported disc 
types
DVD (with the same region number on the
back of the unit), audio CD, CD-R, CD-RW,
JPEG, DivX (version 3.0 ~ 6.0)
Video signal
Horizontal resolution: 500 lines
S/N ratio: 70 dB
Audio signal
Frequency
characteristics
Linear PCM DVD:
20 Hz to 20 kHz
(sampling rate: 48 kHz)
20 Hz to 20 kHz
(sampling rate: 96 kHz)
CD: 20 Hz to 20 kHz
S/N radio
CD: 94 dB (1 kHz)
Dynamic range
Linear PCM DVD: 95 dB
CD: 94 dB 
Total harmonic
distortion ratio
0.01% maximum
Type
2-way type speaker system
2.5 cm (1") tweeter
8 cm (3-1/8") woofer (x 2)
Maximum input 
power
150 W
Rated input power
75 W
Impedance
4 ohms
Dimensions
Width: 300 mm (11-13/16") 
Height: 129 mm (5-1/16") 
Depth: 160 mm (6-5/16")
Weight
2.1 kg (4.6 lbs.)/each
Type
Subwoofer system
20 cm (8 ") subwoofer
Maximum input 
power
200 W
Rated input power
100 W
Inpedance
12 ohms
Dimensions
Width: 220 mm (8-11/16") 
Height: 354 mm (13-15/16") 
Depth: 438 mm (17-1/4")
Weight
7.6 kg (16.7 lbs.)
1 – 2
Page of 127

Download Sharp HT-DV40H (serv.man4) Service Manual (Repair Manual)

Here you can view online or download Sharp HT-DV40H (serv.man4) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp HT-DV40H (serv.man4) Home Theatre. Information contained in Sharp HT-DV40H (serv.man4) 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).