Read Sharp QT-V5E (serv.man4) Service Manual online
QT-V5E/QT-V5H
SERVICE MANUAL
No. S7460QTV5H///
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.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
for after sales service only.
The contents are subject to change without notice.
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................. 1-1
[2] Names
[1] Specifications ................................................. 1-1
[2] Names
of
parts............................................... 1-2
CHAPTER 2. MECHANISM BLOCKS
[1] Caution
[1] Caution
on
disassembly ................................. 2-1
CHAPTER 3. DIAGRAMS
[1] Block
[1] Block
diagrams............................................... 3-1
CHAPTER 4. CIRCUIT DESCRIPTION
[1] Notes on schematic diagram.......................... 4-1
[2] Types of transistor and LED........................... 4-1
[3] Voltage ........................................................... 4-2
[1] Notes on schematic diagram.......................... 4-1
[2] Types of transistor and LED........................... 4-1
[3] Voltage ........................................................... 4-2
CHAPTER 5. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Schematic
LAYOUT
[1] Schematic
diagram........................................5-1
[2] Wiring side of PWB......................................5-13
CHAPTER 6. OTHERS
[1] Function table of IC .......................................6-1
[1] Function table of IC .......................................6-1
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.
DVD/CD SYSTEM
QT-V5E
MODEL
DVD/CD SYSTEM
QT-V5H
MODEL
QT-V5E/QT-V5H
– i –
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.
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.
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
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.
NG: The "NG" lamp lights and the buzzer sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
TO GND OF CHASSIS
SCREW
WITHSTANDING
VOLTAGE TESTER
Material: AlGaAs/AlGalnP
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
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
ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING. SE IKKE IND I
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN
LAITTEEN LÄPI.
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.
ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM
OPTISKT INSTRUMENT.
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA
KÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE NÄKYVÄLLE JA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
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.
(For U.K.)
(Except for U.K.)
QT-V5E/QT-V5H
1 – 1
Audio
QT-V5E/QT-V5H
Service Manual
QT-V5E/QT-V5H
Market
E
CHAPTER 1.
GENERAL DESCRIPTION
[1] Specifications
Power source
AC 230 - 240 V, 50 Hz
DC 12 V ["D" size (UM/SUM-1, R20 or HP-2) battery
8]
DC 3 V ["AA" size (UM/SUM-3, R6 or HP-7) battery
2 for
memory]
Power consumption
23 W
Output power
RMS: 10 W (5 W + 5 W) (10 % T.H.D., 1 kHz)
Speakers
8 cm Full range speaker
2
Dimensions
Width: 420 mm
Height: 150 mm
Depth: 260 mm
Height: 150 mm
Depth: 260 mm
Weight
5.2 kg
Signal system
PAL/NTSC color
Supported disc types
DVD (region number 2 or ALL), SVCD, VCD, audio CD,
CD-R, CD-RW, MP3
CD-R, CD-RW, MP3
Video signal
Horizontal resolution: 500 lines
S/N ratio: 50 dB
Audio signal
Frequency character-
istics
istics
Linear PCM DVD:
20 Hz to 20 kHz (sampling rate:
48 kHz)
48 kHz)
20 Hz to 20 kHz (sampling rate:
96 kHz)
96 kHz)
CD: 20 Hz to 20 kHz
S/N ratio
CD: 80 dB (1 kHz)
Dynamic range
Linear PCM DVD: 70 dB
CD: 70 dB
Total harmonic distor-
tD:ion ratio
tD:ion ratio
0.01 % maximum
Audio output termi-
nals
nals
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Optical digital output: Square type
1
Analog output: RCA type
1 pair (L/R)
Video output termi-
nals
nals
SCART output: SCART terminal
1
Video output: RCA type
1
S-video output: S-terminal
1
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
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.
Power source
AC 230 - 240 V, 50 Hz
DC 12 V ["D" size (UM/SUM-1, R20 or HP-2) battery
8]
DC 3 V ["AA" size (UM/SUM-3, R6 or HP-7) battery
2 for
memory]
Power consumption
23 W
Output power
RMS: 10 W (5 W + 5 W) (10 % T.H.D., 1 kHz)
Speakers
8 cm Full range speaker
2
Dimensions
Width: 420 mm
Height: 150 mm
Depth: 260 mm
Height: 150 mm
Depth: 260 mm
Weight
5.2 kg
Signal system
PAL/NTSC color
Supported disc types
DVD (region number 2 or ALL), SVCD, VCD, audio CD,
CD-R, CD-RW, MP3
CD-R, CD-RW, MP3
Video signal
Horizontal resolution: 500 lines
S/N ratio: 50 dB
Audio signal
Frequency character-
istics
istics
Linear PCM DVD:
20 Hz to 20 kHz (sampling rate:
48 kHz)
48 kHz)
20 Hz to 20 kHz (sampling rate:
96 kHz)
96 kHz)
CD: 20 Hz to 20 kHz
S/N ratio
CD: 80 dB (1 kHz)
Dynamic range
Linear PCM DVD: 70 dB
CD: 70 dB
Total harmonic distor-
tion ratio
tion ratio
0.01 % maximum
Audio output termi-
nals
nals
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Optical digital output: Square type
1
Analog output: RCA type
1 pair (L/R)
Video output termi-
nals
nals
SCART output: SCART terminal
1
Video output: RCA type
1
S-video output: S-terminal
1
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
QT-V5H
QT-V5E
QT-V5E/QT-V5H
1 – 2
[2] Names of parts
Main unit
1. On/Stand-by Switch
2. Volume Up and Down Buttons
3. Stop Button
4. Play/Pause Button
5. Chapter (track) Skip Down or Tuning Down Button
6. Chapter (track) Skip Up or Tuning Up Button
7. Tuner (Band) Button
8. Disc Tray Open/Close Button
9. Remote Sensor
2. Volume Up and Down Buttons
3. Stop Button
4. Play/Pause Button
5. Chapter (track) Skip Down or Tuning Down Button
6. Chapter (track) Skip Up or Tuning Up Button
7. Tuner (Band) Button
8. Disc Tray Open/Close Button
9. Remote Sensor
10. Disc Tray
11. Timer Set Indicator
11. Timer Set Indicator
12. Extra Bass Indicator
13. Random Indicator
14. Repeat Indicator
15. Memory Indicator
16. Track Indicator
17. Surround Indicator
18. Stereo Indicator
19. Sleep Indicator
20. Timer Indicator
21. Preset Equalizer Indicators
22. CD Indicator
23. MP3 Indicator
13. Random Indicator
14. Repeat Indicator
15. Memory Indicator
16. Track Indicator
17. Surround Indicator
18. Stereo Indicator
19. Sleep Indicator
20. Timer Indicator
21. Preset Equalizer Indicators
22. CD Indicator
23. MP3 Indicator
24. FM Telescopic Rod Aerial
25. SCART Output Socket
26. S-video Output Socket
27. Video Output Socket
28. Audio Output Sockets
29. Headphone Socket
30. Optical Digital Audio Output Socket
31. Battery Compartment cover
32. AC Power Input Socket
25. SCART Output Socket
26. S-video Output Socket
27. Video Output Socket
28. Audio Output Sockets
29. Headphone Socket
30. Optical Digital Audio Output Socket
31. Battery Compartment cover
32. AC Power Input Socket
12
13
14
15
16
17
18
19 20
24
31
32
25 26 27
29
28
30
21
22
23
9
10
11
1
2
3
4
5
6
7
8
Remote control
1. Remote Control Transmitter
2. On-Screen Display Select Button
3. On/Stand-by Button
4. Subtitle Select Button
5. Audio Language Select or Audio Output Select Button
6. Angle Select Button
2. On-Screen Display Select Button
3. On/Stand-by Button
4. Subtitle Select Button
5. Audio Language Select or Audio Output Select Button
6. Angle Select Button
7. Top Menu Button
8. Clear Button
9. Return Button
8. Clear Button
9. Return Button
10. Cursor Buttons
11. 1/ALL Repeat Button
12. A - B Repeat Button
13. PBC On/Off Button
14. Slow-motion Play Buttons
15. Fast Reverse/Tuner Preset Down and Fast Forward/
11. 1/ALL Repeat Button
12. A - B Repeat Button
13. PBC On/Off Button
14. Slow-motion Play Buttons
15. Fast Reverse/Tuner Preset Down and Fast Forward/
Tuner Preset Up Buttons
16. Programme Button
17. Clock Button
18. Shift Button
19. Timer/Sleep Button
20. Sound Mode Select Button
21. Tuner (Band) Button
22. Dimmer Button
17. Clock Button
18. Shift Button
19. Timer/Sleep Button
20. Sound Mode Select Button
21. Tuner (Band) Button
22. Dimmer Button
23. Disc Tray Open/Close Button
24. Direct Number Buttons
25. Menu Button
26. Enter Button
27. GOTO Button
28. Random Play Button
29. Still/Frame Advance Buttons
30. Chapter (Track) Skip Up and Down Buttons
31. Play/Pause Button
32. Stop Button
33. Volume Up and Down Buttons
24. Direct Number Buttons
25. Menu Button
26. Enter Button
27. GOTO Button
28. Random Play Button
29. Still/Frame Advance Buttons
30. Chapter (Track) Skip Up and Down Buttons
31. Play/Pause Button
32. Stop Button
33. Volume Up and Down Buttons
1
32
22
23
24
25
26
27
28
33
31
29
30
9
7
6
5
4
3
2
10
11
12
13
14
18
15
16
17
19
20
21
8
This button works as the ZOOM button when pressed with the SHIFT button.
This button works as the NTSC/PAL select button when pressed with the SHIFT
button.
button.
QT-V5E/QT-V5H
