Pioneer 434CMX Service Manual - Page 99

5 6 7 8 • Identification of locations having abnormality by the number of times the LEDs flash On Shutdown and power-down Shutdown • Operation: When the microcomputer detects any abnormality, it forcibly shuts the unit off. A • LED indication: The LED flashes in green. Note: The LED flashes regardless of the FRONT INDICATOR setting on the Integrator menu. Power-down • Operation: When the unit is in emergency status, a protection circuit is activated, and the power is shut off. • LED indication: The LED flashes in red. Category LED STB ON Content Unit's Operation Warning Message Once Communication failure of the Shutdown 3 seconds panel-drive IC after warning Shutdown by circuit failure (01) Twice Communication failure of the Shutdown 3 seconds module IIC after warning Shutdown by circuit failure (02) B 3 times Power decrease of the digital DC-DC converter Immediate shutdown 4 times Panel having high temperature Shutdown 30 seconds after warning Shutdown by warning temperature rise (04) 5 times Audio failure Shutdown 3 seconds after warning Shutdown by warning speaker failure (05) 6 times Communication failure of the Shutdown 3 seconds module microcomputer after warning Shutdown by circuit failure (06) SD 7 times Main 3-wire serial communication in failure Shutdown 3 seconds after warning Shutdown by circuit failure (07) C 8 times Communication failure of the Shutdown 3 seconds main IIC after warning Shutdown by circuit failure (08) 9 times Communication failure of the main microcomputer Immediate shutdown 10 times Fan in failure Shutdown 3 seconds after warning Shutdown by warning fan abnormality (10) 11 times Unit having higher temperature Shutdown 30 seconds after warning Shutdown by warning temperature rise (11) 13 times Main microcomputer ASIC power supply NG Immediate shutdown 14 times Communication failure of IF-EEPROM Shutdown 3 seconds after warning Shutdown by circuit failure (14) D 15 times Other failure RLS Shutdown 30 seconds after warning VCC-D1 Shutdown 3 seconds VCC-D2 after warning Shutdown by circuit failure (15) Once Twice Power Immediate power-down 3 times SCAN Immediate power-down 4 times SCAN-5V Immediate power-down 5 times Y-DRIVE Immediate power-down 6 times Y-DCDC Immediate power-down PD 7 times Y-SUS Immediate power-down E 8 times ADDRESS Immediate power-down 9 times X-DRIVE Immediate power-down 10 times X-DCDC Immediate power-down 11 times X-SUS Immediate power-down 12 times DIGITAL-DCDC Immediate power-down 15 times UNKNOWN (Not identified) ∗ Immediate power-down ∗ If the unit cannot identify which protection circuit was activated, even if a power-down had been detected, the red LED may flash 15 times. F PDP-434CMX 99 5 6 7 8