DVP-F41MS - Sony DVD Service Manual (repair manual)

US Model

Canadian Model

AEP Model

UK Model

Laser

Semiconductor laser

Signal format system

NTSC

Frequency response 

DVD VIDEO (PCM 96 kHz): 2 Hz to 44 kHz (±1.0 dB)
DVD VIDEO (PCM 48 kHz): 2 Hz to 22 kHz (±0.5 dB)
CD/“MG Memory Stick” (ATRAC3): 2 Hz to 20 kHz (±0.5 dB)

Signal-to-noise ratio (S/N ratio)

115 dB (AUDIO OUT L/R jacks only)

Harmonic distortion

0.003%

Dynamic range

DVD VIDEO: 103 dB
CD/“MG Memory Stick” (ATRAC3): 99 dB

Wow and flutter

Less than detected value (±0.001% W PEAK)

The signals from AUDIO OUT L/R jacks are measured. When you play PCM sound tracks with a 96 kHz sampling 
frequency, the output signal from the DIGITAL OUT (OPTICAL) jack is converted to 48 kHz sampling frequency.

DIGITAL OUT 
(OPTICAL)

Optical output jack

-18 dBm

Wave length 660 nm

AUDIO OUT L/R

Phono jack

2 Vrms (50 kilohms)

Over 10 kilohms

VIDEO OUT

Phono jack

1.0 Vp-p

75 ohms, sync negative

S-VIDEO OUT

4-pin mini DIN

Luminance signal: 

1.0 Vp-p

Color signal:

0.286 Vp-p

75 ohms, sync negative

75 ohms terminated

Power requirements

DC 10.5 V
See page 3 for further information.

Power consumption

12 W

Dimensions (approx.)

252 

×  60 ×  183 mm (10 ×  2 3/8 ×  7 1/4 in.) (width/height/depth) 

including projecting parts

Mass (approx.)

1.5 kg (3 lb. 5 oz.)

Operating temperature

5°C to 35°C (41°F to 95°F)

Operating humidity

25% to 80%

Model name

AC-F21

Power requirements

100 – 240 V AC, 50/60 Hz

Output voltage

DC 10.5 V, 1.3 A in operating mode

Operating temperature

5°C to 35°C (41°F to 95°F)

Storage temperature

–20°C to 60°C (–4°F to 140°F)

See page 17.

Active Speaker System SA-F21

Specifications and design are subject to change without notice.

E

NERGY 

S

TAR

 is a U.S. registered mark. As an 

E

NERGY 

S

TAR

 Partner, Sony Corporation has determined 

that this product meets the 

E

NERGY 

S

TAR

 guidelines for energy efficiency.

After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly-sol-dered

connections. Check the entire board surface for solder 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.

4. Look for parts which, though functioning, show obvious signs

of deterioration. Point them out to the customer and recom-
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.

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.
1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers' instructions to use these
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 pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suit-able. (See Fig. A)

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !

!

!

!

! SUR LES

COMPONENTS IDENTIFIED BY MARK !

!

!

!

! OR DOTTED LINE WITH

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 ra-
diation exposure.

Ω

µF

Section

Title

Page

1.

GENERAL

2.

DISASSEMBLY

2-1.

Terminal Cover, Lower Case .......................................... 2-1

2-2.

Upper Case .................................................................... 2-1

2-3.

Mechanism Deck ............................................................ 2-1

2-4.

Chucking Arm Block ....................................................... 2-1

2-5.

MD-90, Board, Lever Assembly ...................................... 2-2

2-6.

Base (C) Assembly ......................................................... 2-2

2-7.

Optical Device ................................................................ 2-2

2-8.

BU Holder ....................................................................... 2-2

2-9.

Gate Assembly, Cover (T) .............................................. 2-3

2-10.

Roller (Slider) ................................................................. 2-3

2-11.

Slider (L), Slider (R) ........................................................ 2-3

2-12.

FL-123A Board ............................................................... 2-3

2-13.

MB-99A, IR-39 Boards ................................................... 2-4

2-14.

Sliders (L) and (R) Phase Adjustment ............................ 2-4

2-15.

Internal Views ................................................................. 2-5

2-16.

Circuit Boards Location .................................................. 2-6

3.

BLOCK DIAGRAMS

3-1.

Overall Block Diagram .................................................... 3-1

3-2.

RF/SERVO Block Diagram ............................................. 3-3

3-3.

Signal Processor Block Diagram .................................... 3-5

3-4.

System Control Block Diagram ...................................... 3-7

3-5.

Video Block Diagram ...................................................... 3-9

3-6.

Audio Block Diagram .................................................... 3-10

3-7.

Interface Control Block Diagram ................................... 3-11

3-8.

POWER BLOCK DIAGRAM ......................................... 3-12

3-9.

MEMORY STICK DIAGRAM ........................................ 3-13

4.

PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS

4-1.

Frame Schematic Diagram ............................................. 4-3

4-2.

Printed Wiring Boards and Schematic Diagrams ........... 4-5
• IR-39A (IR) Printed Wiring Boards and Schematic

Diagrams .................................................................... 4-5

• MB-99A (VIDEO/AUDIO/SIGNAL PROCESS/SERVO)

Printed Wiring Board .................................................. 4-7

• MB-99A (SYSTEM CONTROL) Schematic

Diagram .................................................................... 4-11

• MB-99A (RF SERVO) Schematic Diagram ............... 4-13
• MB-99A (SIGNAL PROCESS) Schematic Diagram . 4-15
• MB-99A (SERVO) Schematic Diagram .................... 4-17
• MB-99A (SIGNAL PROCESS) Schematic Diagram . 4-19
• MB-99A (SIGNAL PROCESS) Schematic Diagram . 4-21
• MB-99A (POWER) Schematic Diagram ................... 4-23
• MB-99A (AV OUT) Schematic Diagram .................... 4-25
• MB-99A (VIDEO) Schematic Diagram ...................... 4-27
• MB-99A (AUDIO) Schematic Diagram ...................... 4-29
• MB-99A (AVMS) Schematic Diagram ....................... 4-31
• MD-89 (FUNCTION SWITCH 1)

Printed Wiring Board and Schematic Diagram ......... 4-33

• FL-123A (INTERFACE CONTROL)

Printed Wiring Board ................................................ 4-35

• FL-123A (INTERFACE CONTROL)

Schematic Diagram .................................................. 4-37

• MD-90 (FUNCTION SWITCH) Printed Wiring Board

and Schematic Diagram ........................................... 4-39

• MD-91 (SWITCH) Printed Wiring Board and

Schematic Diagram .................................................. 4-39

Section

Title

Page

5.

IC PIN FUNCTION DESCRIPTION

5-1.

System Control PIN Function (MB-99A Board IC103) ... 5-1

5-2.

System Control PIN Function (FL-123A Board IC403) ... 5-2

6.

TEST MODE

6-1.

General Description ....................................................... 6-1

6-2.

Starting Test Mode ......................................................... 6-1

6-3.

Syscon Diagnosis ........................................................... 6-1

6-4.

Drive Auto Adjustment .................................................... 6-5

6-5.

Drive Manual Operation ................................................. 6-7

6-6.

Mecha Aging ................................................................ 6-10

6-7.

Emergency History ....................................................... 6-10

6-8.

Version Information ...................................................... 6-12

6-9.

Video Level Adjustment ................................................ 6-12

6-10.

IF CON Function Check Mode ..................................... 6-12

6-11.

Troubleshooting ............................................................ 6-15

7.

ELECTRICAL ADJUSTMENT

7-1.

Power Supply Check ...................................................... 7-1
1.

MB-99A Boards ........................................................ 7-1

7-2.

Adjustment of Video System .......................................... 7-2
1.

Video Level Adjustment (MB-99A Board) ................ 7-2

2.

Checking S Video Output S-Y .................................. 7-2

3.

Checking S Video Output S-C .................................. 7-2

7-3.

Adjustment Related Parts Arrangement ......................... 7-2

8.

REPAIR PARTS LIST

8-1.

Exploded Views .............................................................. 8-1

8-1-1.

Case Assembly .............................................................. 8-1

8-1-2.

MECH.DECK Block (1) ................................................... 8-2

8-1-3.

MECH.DECK Block (2) ................................................... 8-3

8-1-4.

CHASSIS Block .............................................................. 8-4

8-1-5.

Supplied Accessories ..................................................... 8-5

8-2.

Electrical Parts List ......................................................... 8-6

This section is extracted rom instruction
manual (3-072-475-11(1)).

• Instructions in this manual describe the 

controls on the remote. You can also use the 
controls on the player if they have the same 
or similar names as those on the remote.

• The icons used in this manual are described 

below:

The following terms will be used to explain common 
features in similar media.

– “DVD” for DVD VIDEOs, DVD-Rs and DVD-

RWs (Video mode/VR mode)

– “Memory Stick” for both “Memory Stick” and 

“MG Memory Stick”

* Audio compression standard defined by ISO 

(International Organization for Standardization)/
MPEG

** Adaptive Transform Acoustic Coding 3: Audio 

compression technology
US and foreign patents licensed from Dolby 
Laboratories.

“DVD VIDEO” and “DVD-RW” are trademarks.

Your player has a region code printed on the 
back of the unit and will only play DVDs 
labeled with identical region codes.

DVDs labeled 

 will also play on this 

player.
If you try to play any other DVD, the 
message “Playback prohibited by area 
limitations.” will appear on the TV screen. 
Depending on the DVD, no region code 
indication may be labeled even though 
playing the DVD is prohibited by area 
restrictions.

Functions available for DVD 
VIDEOs or DVD-Rs/DVD-
RWs in Video mode

Functions available for DVD-
RWs in VR (Video Recording) 
mode

Functions available for VIDEO 
CDs or CD-Rs/CD-RWs

Functions available for music 
CDs or CD-Rs/CD-RWs

Functions available for MP3* 
audio tracks or JPEG image 
files on CD-ROMs/CD-Rs/
CD-RWs

Functions available for JPEG 
image files on a “Memory 
Stick”

Functions available for 
ATRAC3** audio tracks or 
JPEG image file on a 
“MagicGate (MG) Memory 
Stick”

z

More convenient features

DVD VIDEO

DVD-RW

VIDEO CD

Music CD

Region Code

,

The player cannot play the following discs:
• CD-ROMs/CD-Rs/RWs (except the discs 

recorded in the following formats:

– Music CD format
– VIDEO CD format
– MP3 audio tracks and JPEG image files 

which conform to ISO9660* level 1/ 
level 2/Joliet)

• Data part of CD-Extras
• DVD-ROMs
• DVD Audio discs
• HD layer on SACDs

* A logical format of files and folders on CD-ROMs, 

defined by ISO (International Organization for 
Standardization).

Also, the player cannot play the following 
discs:
• A DVD VIDEO with a different region 

code (page 98).

• A disc recorded in a color system other than 

NTSC, such as PAL or SECAM. (This 
player conforms to the NTSC color 
system.)

• A disc that has a non-standard shape (e.g., 

card, heart).

• A disc with paper or stickers on it.
• A disc that has the adhesive of cellophane 

tape or a sticker still left on it.

On playing DVD-R/DVD-RW/CD-R/CD-RW
Some DVD-Rs, DVD-RWs, CD-Rs or CD-RWs 
cannot be played on this player due to the recording 
quality or physical condition of the disc, or the 
characteristics of the recording device. The disc will 
not play if it has not been correctly finalized. 
Discs containing one-generation copy controlled 
contents recorded with CPRM (Content Protection for 
Recordable Media) protection cannot be played on this 
player.
For more information, see the operating instructions 
for the recording device.
Note that discs created in the Packet Write format also 
cannot be played.

Some playback operations of DVDs and 
VIDEO CDs may be intentionally set by 
software producers. Since this player plays 
DVDs and VIDEO CDs according to the disc 
contents the software producers designed, 
some playback features may not be available. 
Also, refer to the instructions supplied with 
the DVDs or VIDEO CDs.

This product incorporates copyright 
protection technology that is protected by 
method claims of certain U.S. patents, other 
intellectual property rights owned by 
Macrovision Corporation, and other rights 
owners. Use of this copyright protection 
technology must be authorized by 
Macrovision Corporation, and is intended for 
home and other limited viewing uses only, 
unless otherwise authorized by Macrovision 
Corporation. Reverse engineering or 
disassembly is prohibited.

• To keep the disc clean, handle the disc by its 

edge. Do not touch the surface.

• Do not expose the disc to direct sunlight or 

heat sources such as hot air ducts, or leave 
it in a car parked in direct sunlight as the 
temperature may rise considerably inside 
the car.

• After pressing 

A on the player to eject the 

disc, do no leave the disc as it is. Remove it 
completely from the player.

• After playing, store the disc in its case.
• If glue is present on the outer edge of the 

disc, wipe the edge of the disc with the side 
of a pen or pencil so that the glue is spread 
evenly along the edge before inserting the 
disc into the player. Be sure not to touch the 
playback side of the disc when wiping the 
edge.

•  If burrs remain on the outer edge of the 

disc, remove them by rubbing with the side 
of a pen or pencil. If burrs are not removed, 
discs may not load properly into the player, 
or fragments of plastic adhering to the 
playback side of the disc may cause 
skipping in the sound.

• Before playing, clean the disc with a 

cleaning cloth. Wipe the disc from the 
center out.

• Do not use solvents such as benzine, 

thinner, commercially available cleaners, or 
anti-static spray intended for vinyl LPs.