DVP-M20P - Sony DVD Service Manual (repair manual). Page 20

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DVP-M20P
63
Additional Information
Self-diagnosis Function 
(When letters/numbers appear in the 
display)
When the self-diagnosis function is activated 
to prevent the player from malfunctioning, a 
five-character service number (e.g., C 13 50) 
with a combination of a letter and four digits 
appears on the screen. In this case, check the 
following table.
Glossary
Album (page 43, 45)
A unit in which to store JPEG image files or 
MP3 audio tracks on a DATA CD/DATA 
DVD. (“Album” is an exclusive definition for 
this player.)
Chapter
Sections of a picture or a music feature that 
are smaller than titles. A title is composed of 
several chapters. Depending on the disc, no 
chapters may be recorded.
Dolby Digital (page 18, 58)
Digital audio compression technology 
developed by Dolby Laboratories. This 
technology conforms to multi-channel 
surround sound. The rear channel is stereo 
and there is a discrete subwoofer channel in 
this format. Dolby Digital provides the same 
discrete channels of high quality digital audio 
found in “Dolby Digital” theatre surround 
sound systems. Good channel separation is 
realized because all of the channel data is 
recorded discretely and little deterioration is 
realized because all channel data processing 
is digital. 
DTS (page 18, 59)
Digital audio compression technology that 
Digital Theater Systems, Inc. developed. This 
technology conforms to multi-channel 
surround sound. The rear channel is stereo 
and there is a discrete subwoofer channel in 
this format. DTS provides the same discrete 
channels of high quality digital audio.
Good channel separation is realized because 
all of the channel data is recorded discretely 
and little deterioration is realized because all 
channel data processing is digital.
DVD VIDEO (page 5)
A disc that contains up to 8 hours of moving 
pictures even though its diameter is the same 
as a CD.
The data capacity of a single-layer and single-
sided DVD is 4.7 GB (Giga Byte), which is 7 
times that of a CD. The data capacity of a 
double-layer and single-sided DVD is 8.5 
GB, a single-layer and double-sided DVD is 
First three 
characters of 
the service 
number
Cause and/or corrective 
action
C 13
The disc is dirty or recorded 
in a format that this player 
cannot play (page 6).
,Clean the disc with a soft 
cloth or check its format 
(page 2).
C 31
The disc is not inserted 
correctly.
,Re-insert the disc 
correctly.
E XX
(xx is a number)
To prevent a malfunction, the 
player has performed the 
self-diagnosis function.
,Contact your nearest 
Sony dealer or local 
authorized Sony service 
facility and give the 5-
character service number.
Example: E 61 10
C:13:50
,continued
64
9.4 GB, and double-layer and double-sided 
DVD is 17 GB.
The picture data uses the MPEG 2 format, a 
worldwide standard of digital compression 
technology. The picture data is compressed to 
about 1/40 (average) of its original size. The 
DVD also uses a variable rate coding 
technology that changes the data to be 
allocated according to the status of the 
picture. Audio information is recorded in a 
multi-channel format, such as Dolby Digital, 
allowing you to enjoy a more realistic audio 
presence.
Furthermore, various advanced functions 
such as the multi-angle, multilingual, and 
Parental Control functions are provided with 
the DVD.
DVD-RW (page 5)
A DVD-RW is a recordable and rewritable 
disc that is the same size as a DVD VIDEO. 
The DVD-RW has two different modes: VR 
mode and Video mode. DVD-RWs created in 
Video mode have the same format as a DVD 
VIDEO, while discs created in VR (Video 
Recording) mode allow the contents to be 
programmed or edited.
DVD+RW (page 5)
A DVD+RW (plus RW) is a recordable and 
rewritable disc. DVD+RWs use a recording 
format that is comparable to the DVD VIDEO 
format.
File (page 43, 46)
A JPEG image recorded on a DATA CD/
DATA DVD (“File” is an exclusive 
definition for this player.) A single file 
consists of a single image or movie.
Film based software, Video based 
software (page 16)
DVDs can be classified as Film based or 
Video based software. Film based DVDs 
contain the same images (24 frames per 
second) that are shown at movie theatres.
Video based DVDs, such as television 
dramas or sit-coms, displays images at 30 
frames/60 fields (25 frames/50 fields) per 
second.
MPEG audio (page 18, 58)
International standard coding system used to 
compress audio digital signals authorized by 
ISO/IEC. MPEG 1 conforms to up to 2-
channel stereo. MPEG 2, used on DVDs, 
conforms to up to 7.1-channel surround.
Normal (Interlace) format (page 16)
Normal (Interlace) format shows every other 
line of an image as a single “field” and is the 
standard method for displaying images on 
television. The even number field shows the 
even numbered lines of an image, and the odd 
numbered field shows the odd numbered lines 
of an image.
Progressive format (page 16)
Compared to the Interlace format that 
alternately shows every other line of an image 
(field) to create one frame, the Progressive 
format shows the entire image at once as a 
single frame. This means that while the 
Interlace format can show 25 or 30 frames 
(50-60 fields) in one second, the Progressive 
format can show 50-60 frames in one second. 
The overall picture quality increases and still 
images, text, and horizontal lines appear 
sharper. This player is compatible with the 
525 or 625 progressive format.
Progressive JPEG
Progressive JPEGs are used mostly on the 
internet. They are different from other JPEGs 
in that they “fade in” gradually instead of 
being drawn from top to bottom when 
displayed on a browser. This lets you view the 
image while it is being downloaded.
Title
The longest section of a picture or music 
feature on a DVD, movie, etc., in video 
software, or the entire album in audio 
software.
65
Additional Information
Specifications
System
Laser: Semiconductor laser
Signal format system: PAL/NTSC (See 
page 15 to switch)
Audio characteristics
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: 2 Hz to 20 kHz (±0.5 dB)
Signal-to-noise ratio (S/N ratio): 115 dB 
(LINE OUT L/R (AUDIO) jacks only)
Harmonic distortion: 0.003 %
Dynamic range: DVD VIDEO: 103 dB/
CD: 99 dB
Wow and flutter: Less than detected value 
(±0.001% W PEAK)
Outputs
(Jack name: Jack type/Output level/Load 
impedance)
LINE OUT (AUDIO): Phono jack/2 Vrms/
10 kilohms
DIGITAL OUT (OPTICAL): Optical 
output jack/–18 dBm (wave length 
660 nm)
DIGITAL OUT (COAXIAL): Phono jack/
0.5 Vp-p/75 ohms
COMPONENT VIDEO OUT (Y, P
B
/C
B
,
P
R
/C
R
): Phono jack/Y: 1.0 Vp-p, P
B
/C
B
,
P
R
/ C
R
: 0.7 Vp-p/75 ohms
LINE OUT (VIDEO): Phono jack/1.0 Vp-p/
75 ohms
S VIDEO OUT: 4-pin mini DIN/Y: 
1.0 Vp-p, C: 0.3 Vp-p (PAL), 0.286 Vp-p 
(NTSC)/75 ohms
General
Power requirements:
110 – 240 V AC, 50/60 Hz
Power consumption: 9 W
Dimensions (approx.):
280 
×  45.5 ×  285 mm (width/height/
depth) incl. projecting parts
Mass (approx.): 1.7 kg
Operating temperature: 5
° C to 35 ° C
Operating humidity: 25 % to 80 %
Supplied accessories
See page 13.
Specifications and design are subject to 
change without notice.
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