SONY STRDE885
Manual de Servicio

STR-DE885/DE985 SECTION 3 TEST MODE
FACTORY PRESET MODE
* All preset contents are reset to the default setting. * Procedure: While depressing the [SET UP] and the [DIMMER] buttons simultaneously, press the power ?/1 button to turn on the main power. The message �TUNER FACTORY PRESET� appears and the present contents are reset to the default values.

SOUND FIELD CLEAR MODE
* The preset sound field is cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: While depressing the [SOUND FIELD MODE] button, press the power ?/1 button to turn on the main power. The message �S.F Initialize� appears and initialization is performed.

AM CHANNEL STEP 9 KHZ/10 KHZ SELECTION MODE
* Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. * Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the [PRESET TUNING+] button, press the power. ?/1 button to turn on the main power. Either the message 9 k STEP or 10 k STEP appears. Select the desired step.

VERSION DISPLAY MODE
* The version is displayed. * Procedure: While depressing the [MUTING] and the [DIMMER] buttons simultaneously, press the power ?/1 button to turn on the main power. The massage �VERSION� and the version number are displayed.

KEY CHECK MODE FLUORESCENT INDICATOR TUBE TEST MODE
* All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another. * Procedure: While depressing the [A.DEC] and the [DIMMER] buttons simultaneously, press the power ?/1 button to turn on the main power. 1. All segments turn on. [VIDEO 2], [SETUP], [DVD/LD], [MULTI CHANNEL DECODING] (blue) and [MULTI/2CH ANALOG DIRECT] LEDs turn on. 2. Press the [A.DEC] or the [DIMMER] button, confirm display. (Display) * Button check * Procedure: While depressing the [LEVEL] and the [DISPLAY] buttons simultaneously, press the power ?/1 button to turn on the main power. �Rest 36 Key� appears. Every pressing of any button other than ?/1 counts down the buttons. The buttons which are already counted once are not counted again. When all buttons are pressed �Rest 00 Key� appears.

[SOUND FIELD MODE], [VIDEO 1], [VIDEO 3], [SOUND FIELD 2CH], [SURR] and [A.DEC] LEDs turn on. 3. Press the [A.DEC] or the [DIMMER] button, confirm display. (Display)

[Digital Cinema Sound], [TV/SAT], [LEVEL], [EQ], [CUSTOMIZE] and [A.DEC] LEDs turn on. 4. Press the [A.DEC] or the [DIMMER] button, All segments turn off. ALL LEDs turn off. 5. Every pressing of the [A.DEC] or the [DIMMER] button turns on each segment and LED one after another in the same order.

11