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AV DIAGNOSIS SYSTEM (AUDIO UNIT) AV-73 < SYSTEM DESCRIPTION > [DISPLAY AUDIO] C D E F G H I J K L M B A O P 2. Self diagnosis screen is displayed. The bar graph visible in center of screen indicates progress of self 3. Diagnosis results are displayed after the self diagnosis is com- 1: Control unit (audio unit) is displayed in red. • Replace audio unit if Self Diagnosis did not run because control unit malfunction is indicated. The symptom is audio unit internal error. Refer to AV-114, "Removal and Installation" . • If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > gray. 4. Comments of self diagnosis results can be viewed in the diagno- Audio Unit Self Diagnosis Results AWNIA2630GB Diagnosis results Unit Connection line Normal Green Green Connection malfunction Gray Yellow Unit malfunction 1 Red Green JSNIA1870ZZ Only Unit Part Is Displayed In Red Screen switch Description Possible cause Control unit Malfunction is detected in audio unit power • Audio unit power supply or ground cir- cuits. • If no malfunction is detected in audio unit power supply and ground circuits, re- . A Connecting Cable Between Units Is Displayed In Yellow Area with yellow connection lines Description Possible cause Control unit ⇔ Meter When one of the following is detected: meter power supply and ground circuits. • malfunction is detected in AV communi- cation circuits between audio unit and • Combination meter power supply or ground circuits. . • AV communication circuits between au- dio unit and combination meter. |