KENWOOD DVF3050S
Manual de Servicio

DV-502/503/DVF-3050/3550
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS............. 2 DISASSEMBLY FOR REPAIR....................................3 BLOCK DIAGRAM ......................................................4 CIRCUIT DESCRIPTION ............................................5 WIRING DIAGRAM ...................................................10 PC BOARD .............................................................. 11 SCHEMATIC DIAGRAM .......................................... 15 EXPLODED VIEW ....................................................21 PARTS LIST..............................................................22 SPECIFICATIONS ......................................Back cover

Attention 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 (E30-7235-08) Cord RCA 3p (E30-2990-08) *AC plug adaptor (1) (E03-0115-05) * Use to adapt the plug on the power cord to the shape of the 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 movement
Before transporting or moving this unit, carry out the following 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 difference 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 operate erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, execute the following procedure to reset the microprocessor and return it to normal condition.

1 In POWER ON condition, keep the 7 (STOP) key and the ¡ (Search) key pressed at the same time. 2 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 3 Press the ON/OFF key to go to Power OFF. 4 When Power ON is performed with the ON/OFF key, the settings become the default factory settings. ¶ Please note that resetting the microprocessor clears the contents stored in, it returns the microprocessor to the condition when it left the factory.

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