Sony STR-DE475 Service Manual - Page 6
Test Mode, Fluorescent Indicator Tube Test Mode - repairs
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STR-DE475 SECTION 2 TEST MODE SOFTWARE VERSION DISPLAY MODE * The software version is displayed. * Procedure: While depressing the TUNER and the VIDEO buttons simultaneously, press the power ?/1 button to turn on the main power. The model name, destination and the software version are displayed. 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/SAT and the DVD/LD buttons simultaneously, press the power ?/1 button to turn on the main power. 1. All segments turn on. SW SLEEP SP.OFF D DIGITALPRO LOGIC DTS MPEGSTEREO MONO RDS OPT COAX MULTI CH IN D.RANGE EQ TA NEWS INFO LCR dB ( ( ( L F E ) ) ) kHz mft. SL S SR MHz MEMORY MUTING D D NAME , SURR and SOUND FIELD MODE LED turn on. 2. Press the VIDEO button, confirm display SW SLEEP D PRO LOGIC MPEGSTEREO COAX D.RANGE TA L R L F E S RDS INFO MUTING k m MHz Digital Cinema Sound, SET UP and 2CH LED turn on. 3. Press the VIDEO button, confirm display DIGITAL DTS SP.OFF OPT MULTI CH IN C ((( ))) SL SR MONO EQ NEWS MEMORY dB Hz ft. MULTI CHANNEL DECODING(blue), LEVEL and A.F.D LED turn on. 4. Press the VIDEO button, All segments turn off. 5. Every pressing of the VIDEO button turns on each segment and LED one after another in the same order. (Not only the VIDEO button, but also the other buttons such as DVD/LD , TV/SAT , MD/TAPE , CD , TUNER can be used.) FACTORY SET MODE * All preset contents are reset to the default setting. * Procedure: While depressing the VIDEO and the CD buttons simultaneously, press the power ?/1 button to turn on the main power. The message FACTORY appears and switch off the set. While depressing the VIDEO and the CD buttons simultaneously, press the power ?/1 button again. The message FACTORY 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. CLR 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 TUNING+ button or 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. * For US/Canadian/E model only KEY CHECK MODE * Button check * Procedure: While depressing the SURR and the A.F.D buttons simultaneously, press the power ?/1 button to turn on the main power. "REST 36" 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" appears. When MASTER VOLUME is rotated in clockwise direction, "VOL MIN", "VOL 1" to "VOL 30", "VOL MAX" appear. 6