Kenwood DV 503 Service Manual

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DV7502(K)INT1P 01.6.7 5:38 PM «Ks/1

DVD / CD PLAYER

DV-502/503/DVF-3050

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DVF-3050-S/3550/3550-S

SERVICE MANUAL

© 2001-5/851-5731-00 (K/K) 3470

KENWOOD

Front Panel *
(A60-)

Window * Button(PLAY) *
(B10) (K27-)

KENWOOD

mm 2

navflcrr

Button POWER * Button * Button(SK|P) *
(K27-)( ) (K27-) (K27-)
TOP cover * AC power cord bushing
(A01-l (J42-0350-08)
l @ ©

muse omeur cowousm
vloEo ouwu'r

srleEo

o J;
v

RCA jack RCA jack *
(E63-1227-08) (E63-)
RCA iack RCA jack

(E63-1226-08) (E63-1191-08)

AC power cord *
(E30-)

* Refer to parts list on page 18 .

In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the porduct relating to laser
product safety.

KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.

DANGER : Laser radiation when open and interlock
defeated.
AVOID DIRECT EXPOSURE TO BEAM.

Caution

: No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.

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DV7502(K)INT1P 01.6.7 5:38 PM «392

DV-502/503/DVF-3050/3550

CONTENTS / ACCESSORIES / CAUTIONS

Contents

CONTENTS / ACCESSORIES / CAUTIONS.
DISASSEMBLY FOR REPAIR .......................
BLOCK DIAGRAM ........
CIRCUIT DESCRIPTION.
WIRING DIAGRAM .......

omin'ooix)

Attention

PC BOARD ....................
SCHEMATIC DIAGRAM
EXPLODED VIEW.
PARTS LIST..
SPECIFICATIONS

Please contact our KENWOOD Service Department in your side if you want the service information; Circuit Description. Full
Described Parts list and so. Information is available to you by internet from us.

Accessories

,
Cord RCA 1p Cord RCA 3p *
(E30-7235-08) (E30-2990-08) AC Plug adaptor (1)
(E03-0115-05)
* Use to adapt the plug on the
, power cord to the shape of the
s\\/ wall outlet.
(Accessory only for regions
where use is necessary.)
Batteries (R03/AAA) (2) Remote control unit (1)
(A70-1532-08)
\
Cautions

Note related to transportation and move-
ment

Before transporting or moving this unit, carry out the follow-

ing operations.

1. Set the POWER key to ON without loading a disc.

2. Wait a few seconds and verify that the display shown
appears.

3. Set the POWER key to OFF.

Beware of condensation

When the difference between the internal temperature of the unit
and external atmosphere is large, dew (mist) may be produced on
the internal parts of the unit. In such a case, turn the unit ON and
leave it for a few hours until the condensation has dried up.

Be especially careful in the following conditions:
When the unit is brought into a place where there is a large differ-
ence in temperature between the previous location, when the
humidity of the listening room is high, etc.

Operation to reset

The microprocessor may fall into malfunction (impossibility to oper-
ate erroneous display, etc.) when the power cord is unplugged
while power is ON or due to an external factor. In this case, exe-
cute the following procedure to reset the microprocessor and
return it to normal condition.

0 In POWER ON condition, keep the l (STOP) key and the »
(Search) key pressed at the same time.

9 When both keys are pressed, the region code of the unit, the
software version, etc. will be displayed on the display. (When
nothing is done, the display of this information continues.)
Example: 71 .101 .06:14

9 Press the ONIOFF key to go to Power OFF.

0 When Power ON is performed with the ONIOFF key, the set-
tings become the default factory settings.

. Please note that resetting the microprocessor clears the con-
tents stored in, it returns the microprocessor to the condition
when it left the factory.

I I J?

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DV-502/503/DVF-3050/3550

SPECIFICATIONS

[Type]
System ...................
Signal read system...

DVD video player system
.Semiconductor laser

[D/A Conversion Section]

D/A conversion ......................................................... 24 Bit
Oversampling .. .8 fs (Sampling frequency; 44.1, 48 kHz)
4 fs (Sampling frequency; 96 kHz)

[Audio section]

Frequency response

Sampling frequency ; 44.1 kHz.

Sampling frequency ; 48 kHz.

Sampling frequency ; 96 kHz
Signal to noise ratio ..
Dynamic range .......
Total harmonic distortion.
Channel separation
Wow and flutter .....

4 Hz ~ 20 kHz
4 Hz ~ 22 kHz

4 Hz ~ 42 kHz
....More than 98 dB
....More than 95 dB
..Less than 0.005 °/.. (1 kHz)
..More than 95 dB (1 kHz)
Below measurable limit

Analog output level/impedance .......................... 2 V / 1 k0
Digital output level/impedance
COAXIAL ............................................... 0.5 Vp-p/ 75 Q

OPTICAL ..... -21 dBm ~ -15 dBm (Wave length 660 nm)

[Video Section]
Video output format .......................................... NTSC/PAL
Video compression
DVD ................................................................... MPEG-2

Composite video output level
..................................... 1 Vp-p (75 0 load, sync. negative)
S-video output level

(Y-signal) .................. 1 Vp-p (75 51 load, sync. negative)
(C-signal)
NTSC ............................................. 0.286 Vp-p (75 9)
PAL ...................... 0.300 Vp-p (75 Q)

..More than 480 lines
....More than 60 dB

Horizontal resolution ..
Video signal to noise ratio

[General]
Power consumption ............................ 16 W
Dimensions ............ W: 440 mm (17-5/16")
H: 109 mm (4-5/16)
D: 325 mm (12-13/16")
Weight (net) ................................................. 4.0 kg (8.8 lb)

KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be

WEE changed without notice.
3 - Sufficient performance may not be exhibited at extremely cold locations (Where water freezes).

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1476,Dogenzaka1rchome, Shibuyarku, Tokyo, 1508501 Japan

KENWOOD SERVICE CORPORATION

F.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 9080175745, U.S.A.
KENWOOD ELECTRONICS CANADA INC.

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Mnema, Sac FaulorSPrBrasil

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aysra

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l l 4%.?