Sony DVP-FX820 / DVP-FX825 Service Manual ▷ View online
SERVICE MANUAL
US Model
DVP-FX820
Canadian Model
DVP-FX825
PORTABLE CD/DVD PLAYER
DVP-FX820/FX825
RMT-D183
SPECIFICATIONS
System
Laser: Semiconductor laser
Signal format system: NTSC
Signal format system: NTSC
Audio characteristics
Frequency response: DVD VIDEO (PCM
48 kHz): 20 Hz to 22 kHz/
CD: 20 Hz to 20 kHz
CD: 20 Hz to 20 kHz
Harmonic distortion: 0.01 %
Dynamic range: DVD VIDEO: 90 dB/
Dynamic range: DVD VIDEO: 90 dB/
CD: 90 dB
Wow and flutter: Less than detected value
(
±0.001% W PEAK)
Inputs/Outputs
VIDEO (video input/output):
Minijack (1)
Output 1.0 Vp-p/75 ohms
Output 1.0 Vp-p/75 ohms
AUDIO (audio input/output)/OPTICAL
OUT (optical output):
Stereo minijack/optical minijack
combined (1)
Output 2.0 Vrms/47 kilohms
Recommended load impedance over
47 kilohms
Stereo minijack/optical minijack
combined (1)
Output 2.0 Vrms/47 kilohms
Recommended load impedance over
47 kilohms
PHONES (headphones) A/B:
Stereo minijack (2)
Liquid Crystal Display
Panel size: 8 inches wide (diagonal)
Driving system: TFT active matrix
Resolution: 800
Driving system: TFT active matrix
Resolution: 800
× 480 (effective pixel rate:
more than 99.99%)
General
Power requirements:
DC 9.5 V (AC Adaptor/Car battery
adaptor)
DC 7.4 V (Battery pack)
adaptor)
DC 7.4 V (Battery pack)
Power consumption (DVD VIDEO
Playback):
23 W (when used with a battery pack)
8.5 W (when used without a battery pack,
with a headphone)
23 W (when used with a battery pack)
8.5 W (when used without a battery pack,
with a headphone)
Dimensions (approx.):
225.4
× 33.5 × 164.9 mm (8 /
8
× 1 /
8
×
7
3
6
1
/
2
inches) (width/height/depth) incl.
projecting parts
Mass (approx.): 920 g (2.03 lbs)
Operating temperature: 5 ˚C to 35 ˚C
Operating temperature: 5 ˚C to 35 ˚C
(41
°F to 95°F)
Operating humidity: 25 % to 80 %
AC Adaptor: 100-240 V AC, 50/60 Hz
Car Battery Adaptor: 12 V DC
AC Adaptor: 100-240 V AC, 50/60 Hz
Car Battery Adaptor: 12 V DC
Supplied accessories
• Audio/video cord (mini plug × 2 y phono
plug
× 3) (1)
• AC power cord (1)
• AC adaptor (1)
• AC adaptor (1)
• Car battery adaptor (1)
• Battery pack (NP-FX110) (1)
• Remote (with battery) (1)
• Remote (with battery) (1)
Specifications and design are subject to
change without notice.
change without notice.
Photo: DVP-FX820
– 2 –
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
OBJECTIVE 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
OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL
OR IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL
OR IN SUPPLEMENTS PUBLISHED BY SONY.
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2V AC range are suit-
able. (See Fig. A)
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2V AC range are suit-
able. (See Fig. A)
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
splashes 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 transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
out to the customer and recommend their replacement.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
mend their replacement.
5. Check the line cord for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
6. Check the B+ voltage to see it is at the values specified.
7. Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
Check leakage as described below.
SAFETY CHECK-OUT
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:
CAUTION:
The use of optical instrument with this product will increase eye
hazard.
hazard.
This CD/DVD player is CLASS 1 LASER PRODUCT.
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.)
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
• 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
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!
heated tip is applied for too long, so be careful!
• Strong viscosity
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.
ordinary solder so use caution not to let solder bridges occur
such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
– 3 –
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1.
GENERAL
Precautions ................................................................... 1-1
About This Manual ........................................................ 1-1
This Player Can Play the Following Discs .................... 1-1
Preparations .................................................................. 1-2
Playing Discs ................................................................. 1-3
Settings and Adjustments ............................................. 1-7
Hookups ........................................................................ 1-8
Additional Information ................................................... 1-9
About This Manual ........................................................ 1-1
This Player Can Play the Following Discs .................... 1-1
Preparations .................................................................. 1-2
Playing Discs ................................................................. 1-3
Settings and Adjustments ............................................. 1-7
Hookups ........................................................................ 1-8
Additional Information ................................................... 1-9
2.
DISASSEMBLY
2-1.
Bottom Assy .................................................................. 2-1
2-2.
MAIN Board ................................................................... 2-1
2-3.
Upper Block ................................................................... 2-2
2-4.
LCD Panel Assy ............................................................ 2-3
3.
BLOCK DIAGRAM
3-1.
Overall Block Diagram ................................................... 3-1
4.
SCHEMATIC DIAGRAMS
4-1.
Frame ............................................................................ 4-1
4-2.
DC-DC POWER ............................................................ 4-3
4-3.
MCU & KEY ................................................................... 4-5
4-4.
DVD SERVO & DSP MT1389HD .................................. 4-7
4-5.
SDRAM & FLASH ROM ................................................ 4-9
4-6.
VIDEO OUT & PANEL CONNECT ................................ 4-11
4-7.
AUDIO OUT 1 ................................................................ 4-13
4-8.
AUDIO OUT 2 ................................................................ 4-15
4-9.
T-CON ............................................................................ 4-17
4-10. KEY ADC ....................................................................... 4-19
5.
PRINTED WIRING BOARDS
5-1.
Circuit Boards Location ................................................. 5-1
5-2.
MAIN Board ................................................................... 5-3
5-3.
LCD Board ..................................................................... 5-7
6.
WAVEFORMS AND CIRCUIT VOLTAGE
6-1.
Waveforms ..................................................................... 6-1
6-2.
Circuit Voltage Chart ..................................................... 6-5
7.
IC PIN FUNCTION DESCRIPTION
7-1.
MPEG/DSP/RF Pin Function
(MAIN Board U7: MT1389HD) ...................................... 7-1
(MAIN Board U7: MT1389HD) ...................................... 7-1
7-2.
FRONT MICOM Pin Function
(MAIN Board U6: Z8F0822) .......................................... 7-7
(MAIN Board U6: Z8F0822) .......................................... 7-7
8.
ELECTRICAL ADJUSTMENT
8-1.
Standard Video Level .................................................... 8-1
9.
TROUBLESHOOTING
9-1.
Electrical Trouble Shooting Guide ................................. 9-1
1.
Power (DC-DC Converter) Circuit ................................. 9-1
2.
MPEG Circuit ................................................................. 9-3
3.
Front Circuit (Dogotrpm & Key) ..................................... 9-4
4.
RF/Servo Circuit ............................................................ 9-5
9-2.
LCD Trouble Shooting Guide ........................................ 9-6
10.
REPAIR PARTS LIST
10-1. Exploded Views ............................................................. 10-1
10-1-1. Main Block ................................................................ 10-1
10-1-2. Upper Block .............................................................. 10-2
10-1-3. LCD Block ................................................................. 10-3
10-1-2. Upper Block .............................................................. 10-2
10-1-3. LCD Block ................................................................. 10-3
10-2. Electrical Parts List ....................................................... 10-4
– 4 –
MEMO
