Read Sharp HT-X1H (serv.man2) Service Manual online
HT-X1H
– 0 – – 0 –
SERVICE MANUAL
SHARP CORPORATION
CONTENTS
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.
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................1-1
[2] Names
[1] Specifications ................................................1-1
[2] Names
of
parts ..............................................1-2
CHAPTER 2. ADJUSTMENTS
[1] TEST
[1] TEST
Mode ...................................................2-1
CHAPTER 3. MECHANISM BLOCKS
[1] Caution on diassembly ..................................3-1
[1] Caution on diassembly ..................................3-1
CHAPTER 4. DIAGRAMS
[1] Block
[1] Block
diagram................................................4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Notes on schematic diagram.........................5-1
[2] Types
[1] Notes on schematic diagram.........................5-1
[2] Types
of
transistor .........................................5-1
[3] Waveforms of circuit ......................................5-2
[4] Voltage...........................................................5-3
[4] Voltage...........................................................5-3
CHAPTER 6. PARTS LAYOUT AND CIRCUIT
SCHEMATICS
[1] Schematic
SCHEMATICS
[1] Schematic
diagram ........................................ 6-1
[2] Wiring side of PWB .......................................6-11
[3] DVD PWB Unit............................................. 6-18
[3] DVD PWB Unit............................................. 6-18
CHAPTER 7. FLOWCHART
[1] Troubleshooting ............................................. 7-1
[1] Troubleshooting ............................................. 7-1
CHAPTER 8. OTHER
[1] Function table of IC........................................ 8-1
[1] Function table of IC........................................ 8-1
Parts Guide
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
original condition and only parts identical to those specified be
used.
HT-X1H
MODEL
HOME CINEMA WITH DVD
No. XXXXXXXXXXXXX
HT-X1H
– i –
Mateial: AlGaAs/AlGalnPr
Wavelength: 785 nm/650 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Wavelength: 785 nm/650 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Laser Diode Properties
For U.K.
SAFETY PRECAUTION FOR SERVICE MANUAL
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 1 Requirements.
However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
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
(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.
Laser Diode Properties
Material: AIGaAs/AIGaInP
Wavelength: 785 nm/650 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Wavelength: 785 nm/650 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYVÄLLE JANÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN
I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN UTSÄTTAS FÖR SYNLIG OCH OSYNLIG
LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING.
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ
OPTISEN LAITTEEN LÄPI.
VARNING-SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA
DEL ÄR ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ
STRÅLEN GENOM OPTISKT INSTRUMENT.
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ
OPTISEN LAITTEEN LÄPI.
VARNING-SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA
DEL ÄR ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ
STRÅLEN GENOM OPTISKT INSTRUMENT.
Except for U.K.
HT-X1H
– ii – – ii –
1. Employing lead-free solder
"VCD 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.
Example:
service manuals. The alphabetical character following LF shows the type of 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.
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 by 40 C,
and as it has poor solder wettability, 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.
and as it has poor solder wettability, 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.
PWB-A
Amp./Power1/Power2
PWB-B
Display/Main/LED/Switch/Tuner/Headphones
HT-X1H
1 – 1
Audio
HT-X1H
Service Manual
HT-X1H
Market
E
CHAPTER 1.
GENERAL DESCRIPTION
[1] Specifications
Main unit
Dimensions
Including the stand
Width: 430 mm
Height: 192 mm
Depth: 100 mm
Excluding the stand
Height: 192 mm
Depth: 100 mm
Excluding the stand
Width: 430 mm
Height: 171 mm
Depth: 88 mm
Height: 171 mm
Depth: 88 mm
Weight
2.2 kg
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Video output terminals
SCART output: SCART terminal
1
Video output: RCA type
1
S-video output: S-terminal
1
Audio output terminal
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
(recommended: 32 ohms)
Audio input terminals
Audio input (AUX): RCA type
2
Optical digital input: Square type
1
Other terminal
System control
2
Signal system
PAL
Supported disc types
DVD (region number 2 or ALL),
DVD-R/RW (video mode),
DVD+R/RW (video mode),
super video CD, video CD, audio CD,
CD-R, CD-RW
DVD-R/RW (video mode),
DVD+R/RW (video mode),
super video CD, video CD, audio CD,
CD-R, CD-RW
Video signal
Horizontal resolution: 500 lines
S/N ratio: 70 dB
Audio
signal
signal
Frequency
characteris-
tics
characteris-
tics
Linear PCM DVD:
4 Hz to 22 kHz (sampling rate: 48 kHz)
4 Hz to 44 kHz (sampling rate: 96 kHz)
CD: 4 Hz to 20 kHz
S/N ratio
CD: 96 dB (1 kHz)
Dynamic
range
range
Linear PCM DVD: 95 dB
CD: 94 dB
Total har-
monic distor-
tion ratio
monic distor-
tion ratio
0.006 % maximum
Type
Bass reflex, full range system
(magnetic shield)
(magnetic shield)
8 cm speaker
1
Maximum input power
100 W
Rated input power
50 W
Impedance
4 ohms
Dimensions
Width: 105 mm
Height: 205 mm
Depth: 105 mm
Height: 205 mm
Depth: 105 mm
Weight
0.9 kg/each
Subwoofer/amplifier unit
Amplifier:
Subwoofer:
Type
Bass reflex, full range system
8 cm speaker
1
Maximum input power
100 W
Rated input power
50 W
Impedance
4 ohms
Dimensions
Width: 105 mm
Height: 205 mm
Depth: 105 mm
Height: 205 mm
Depth: 105 mm
Weight
0.75 kg/each
Type
Bass reflex, full range system
(magnetic shield)
(magnetic shield)
8 cm speaker
1
Maximum input power
100 W
Rated input power
50 W
Impedance
4 ohms
Dimensions
Width: 185 mm
Height: 123 mm
Depth: 115 mm
Height: 123 mm
Depth: 115 mm
Weight
0.9 kg
Power source
AC 230 V, 50 Hz
Power consumption
Power on: 160 W
Power stand-by: 0.6 W
Dimensions
Width: 200 mm
Height: 380 mm
Depth: 443 mm
Height: 380 mm
Depth: 443 mm
Weight
10.6 kg
Speaker terminals
Front speakers, center speaker and
surround speakers: more than 4 ohms
surround speakers: more than 4 ohms
Other terminals
System control
2
Rated power output
Front speakers:
RMS: 100 W (50 W + 50 W)
(10 % T.H.D., 1 kHz)
(10 % T.H.D., 1 kHz)
Center speaker:
RMS: 50 W (10 % T.H.D., 1 kHz)
Surround speakers:
RMS: 100 W (50 W + 50 W)
(10 % T.H.D., 1 kHz)
(10 % T.H.D., 1 kHz)
Subwoofer:
RMS: 50 W (10 % T.H.D., 100 Hz)
Type
Bass reflex, 1 way system
16 cm woofer
1
Maximum input power
100 W
Rated input power
50 W
Impedance
4 ohms
HT-X1H
CP-X1HF
CP-X1HC
CP-X1HS
Specifications for this model are subject to change without
prior notice.
prior notice.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO THE OPERATION MANUAL.