Read Sony DVP-FX740DT Service Manual online
Sony Corporation
Home Entertainment Business Group
SERVICE MANUAL
9-890-717-11
2009H0500-1
© 2009.8
Published by Quality Assurance Dept.
PORTABLE CD/DVD PLAYER
Ver. 1.0 2009.08
DVP-FX740DT
RMT-D193
SPECIFICATIONS
AEP Model
UK Model
System
Laser: Semiconductor laser
Signal format system: PAL (NTSC)
Transmission standards: DVB-T
Digital Channel coverage: VHF/UHF
Signal format system: PAL (NTSC)
Transmission standards: DVB-T
Digital Channel coverage: VHF/UHF
Outputs
VIDEO (video output):
Minijack
Output 1.0 Vp-p/75 ohms
Output 1.0 Vp-p/75 ohms
AUDIO (audio output)
Stereo minijack
Output 2.0 Vrms/47 kilohms
Recommended load impedance over
47 kilohms
Output 2.0 Vrms/47 kilohms
Recommended load impedance over
47 kilohms
PHONES (headphones) A/B:
Stereo minijack
USB:
USB jack Type A (For connecting USB
memory)
memory)
DIGITAL AERIAL IN:
75 ohm external terminal for VHF/UHF
Liquid Crystal Display
Panel size: 7 inches wide (diagonal)
Driving system: TFT active matrix
Resolution: 480
Driving system: TFT active matrix
Resolution: 480
× 234 (effective pixel rate:
more than 99.99%)
General
Power requirements:
DC 9.5 V (AC power Adaptor/Car battery
adaptor)
DC 7.4 V (rechargeable battery)
adaptor)
DC 7.4 V (rechargeable battery)
Power consumption (DVD VIDEO Playback):
7 W (when used with a headphone)
Dimensions (approx.):
200
× 39.5 × 155 mm (width/height/depth)
incl. projecting parts
Mass (approx.): 880 g
Operating temperature: 5
Operating temperature: 5
°C to 35 °C
Operating humidity: 25 % to 80 %
AC Power Adaptor: 110-240 V AC, 50/60 Hz
Car Battery Adaptor: 12 V DC
AC Power Adaptor: 110-240 V AC, 50/60 Hz
Car Battery Adaptor: 12 V DC
Supplied accessories
Specifications and design are subject to change
without notice.
without notice.
s AC power adaptor (1)
s Car battery adaptor (1)
s Audio/video cord (mini plug
s Car battery adaptor (1)
s Audio/video cord (mini plug
× 2 y
phono plug
× 3) (1)
s Remote (with battery) (1)
s Aerial (1)
s Aerial (1)
– 2 –
DVP-FX740DT
SAFETY CHECK-OUT
1. Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
and bridges.
2. Check the interboard wiring to ensure that no wires are “pinched”
or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transistors,
that were installed during a previous repair. Point them out to
the customer and recommend their replacement.
the customer and recommend their replacement.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
safety checks before releasing the set to the customer:
Unleaded solder
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
CAUTION:
The use of optical instrument with this product will increase eye
hazard.
The use of optical instrument with this product will increase eye
hazard.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radia-
tion exposure.
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radia-
tion exposure.
WARNING!!
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION,
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 25 cm FROM THE SURFACE OF THE OBJEC-
TIVE LENS ON THE OPTICAL PICK-UP BLOCK.
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION,
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 25 cm FROM THE SURFACE OF THE OBJEC-
TIVE LENS ON THE OPTICAL PICK-UP BLOCK.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK OR DOTTED LINE
WITH MARK ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. RE-
PLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
WITH MARK ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. RE-
PLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recommend
their replacement.
their replacement.
5. Check the B+ voltage to see it is at the values specified.
This label is located on the bottom of the unit.
This appliance is classified as a
CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT
MARKING is located on the
bottom of the unit.
CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT
MARKING is located on the
bottom of the unit.
– 3 –
DVP-FX740DT
TABLE OF CONTENTS
Section Title
Page
Section Title
Page
1. DISASSEMBLY
1-1. Disassembly
Flow
........................................................
1-1
1-2. Top Cover Block ........................................................... 1-1
1-3. LCD Panel Block .......................................................... 1-2
1-4. LCD
1-3. LCD Panel Block .......................................................... 1-2
1-4. LCD
..............................................................................
1-2
1-5. Travers
Unit
..................................................................
1-3
1-6. MAIN
Board
..................................................................
1-4
1-7. ANT
Board
.................................................................... 1-4
1-8. Circuit Boards Location ................................................ 1-5
2.
BLOCK DIAGRAM
2-1. OVERALL BLOCK DIAGRAM ...................................... 2-1
3.
SCHEMATIC DIAGRAMS
3-1. FRAME SCHEMATIC DIAGRAM (1/3) ......................... 3-1
3-2. FRAME SCHEMATIC DIAGRAM (2/3) ......................... 3-2
3-3. FRAME SCHEMATIC DIAGRAM (3/3) ......................... 3-3
3-4. MAIN BOARD (1/7) (DC-DC POWER) ......................... 3-4
3-5. MAIN BOARD (2/7) (MCU & KEY) ............................... 3-5
3-6. MAIN BOARD (3/7)
3-2. FRAME SCHEMATIC DIAGRAM (2/3) ......................... 3-2
3-3. FRAME SCHEMATIC DIAGRAM (3/3) ......................... 3-3
3-4. MAIN BOARD (1/7) (DC-DC POWER) ......................... 3-4
3-5. MAIN BOARD (2/7) (MCU & KEY) ............................... 3-5
3-6. MAIN BOARD (3/7)
(DVD SERVO & DSP MT1389LP) ............................... 3-6
3-7. MAIN BOARD (4/7) (SDRAM & FLASH ROM) ............ 3-7
3-8. MAIN BOARD (5/7) (VIDEO OUT) ............................... 3-8
3-9. MAIN BOARD (6/7) (AUDIO OUT) ............................... 3-9
3-10. MAIN BOARD (7/7) (TUNER & ANT CONNECTOR) ... 3-10
3-11. LCD BOARD (T_CON) ................................................. 3-11
3-12. KEY BOARD (TOUCH BOARD) .................................. 3-12
3-13. ANT BOARD (ANTENNA) ............................................ 3-13
3-8. MAIN BOARD (5/7) (VIDEO OUT) ............................... 3-8
3-9. MAIN BOARD (6/7) (AUDIO OUT) ............................... 3-9
3-10. MAIN BOARD (7/7) (TUNER & ANT CONNECTOR) ... 3-10
3-11. LCD BOARD (T_CON) ................................................. 3-11
3-12. KEY BOARD (TOUCH BOARD) .................................. 3-12
3-13. ANT BOARD (ANTENNA) ............................................ 3-13
4.
PRINTED WIRING BOARDS
4-1. MAIN Board (SIDE A) ................................................... 4-1
4-2. MAIN Board (SIDE B)................................................... 4-2
4-3. LCD
4-2. MAIN Board (SIDE B)................................................... 4-2
4-3. LCD
Board....................................................................
4-3
4-4. KEY
Board
.................................................................... 4-4
4-5. ANT
Board
.................................................................... 4-5
5.
WAVEFORMS AND CIRCUIT VOLTAGE CHECK
5-1. Waveforms
...................................................................
5-1
5-2. Circuit Voltage Chart .................................................... 5-3
6.
IC PIN FUNCTION DESCRIPTION
6-1. MPEG/DSP/RF PIN Functiom
(MAIN Board U7: MT1389LP) ...................................... 6-1
7. ELECTRICAL
ADJUSTMENT
7-1. VCOM DC Level Adjustment ........................................ 7-1
8. TROUBLESHOOTING
8-1. Electrical Trouble Shooting Guide ............................... 8-1
8-2. LCD Trouble Shooting Guide ....................................... 8-6
8-2. LCD Trouble Shooting Guide ....................................... 8-6
9.
REPAIR PARTS LIST
9-1. EXPLODED
VIEWS
.....................................................
9-1
9-1-1. Top Cover Block ...................................................... 9-1
9-1-2. Bottom Block ........................................................... 9-2
9-1-3. LCD Panel Block ..................................................... 9-3
9-2. Electrical Parts List ....................................................... 9-4
9-1-2. Bottom Block ........................................................... 9-2
9-1-3. LCD Panel Block ..................................................... 9-3
9-2. Electrical Parts List ....................................................... 9-4
1-1
DVP-FX740DT
SECTION 1
DISASSEMBLY
• This set can be disassembled in the order shown below.
1-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
1-2. TOP COVER BLOCK
1-2. TOP COVER BLOCK
(Page 1-1)
1-3. LCD PANEL BLOCK
(Page 1-2)
1-4. LCD
(Page 1-2)
1-5. TRAVERS UNIT
(Page 1-3)
1-7. ANT BOARD
(Page 1-4)
1-6. MAIN BOARD
(Page 1- 4)
SET
0
top cover block
9
KEY board harness
6
screw (TS2
× 7)
7
two screws (TS2
× 7)
5
open preve sheet
4
four screws (TS2
× 7)
1
two foot rubbers
2
two screws (TS2
× 7)
3
four screw pads
8
three screws (TS2
× 7)