SONY STRDE425
Instrukcja Serwisowa

SECTION 2 TEST MODE
INITIALIZATION MODE
* All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: While depr essing the VIDEO and the TAPE/MD buttons simultaneously, press the power [I/u] button to turn on the main power. The message INITIAL 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. (US, CND and E model only) * Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING+ button, press the power [I/u] button to turn on the main power. Either the message 9k STEP or 10k STEP appears. Select the desired step.

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 TV/LD and the BASS BOOST buttons simultaneously, press the power [I/u] button to turn on the main power. All segments turn on at the same time, then each segment turns on one after another. The message FINISH appears when this test is complete.

REAR SPEAKER GAIN UP MODE
* The rear speaker gain can be set to either NORMAL or GAIN UP. * Procedure: While depressing the -SURROUND- MODE button, press the power [I/u ] button to turn on the main power. Either the message NORMAL or GAIN UP appears. When the product enters this mode again, the other gain appears. Select the desired gain.

SOFTWARE VERSION DISPLAY MODE
* The software version is displayed. * Procedure: While depressing the TUNER and the BASS BOOST buttons simultaneously, press the power [I/u] button to turn on the main power. The software version is displayed.

AUTO-BETICAL CHECK MODE
* To auto-scanning FM board and memorise RDS station. (FM/ RDS model only) * Procedure: While depressing the MEMORY button, press the power [I/u] button to turn on the main power. The message AUTO BET appears and each function is selected one after another.

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