Pioneer FX-MG8247ZT/ES, Service Manual

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FX-MG8247ZT/UC
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7.1.2 AVC-LAN DIAGNOSIS MODE
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Operations and functions
(1) Key operations for Diagnosis IN (Note *1 ) (2) Key operations for Diagnosis OUT (2) Key operations for Diagnosis OUT
(2) Key operations for Diagnosis OUT
Normal operation mode
All-element lighting mode SW check mode
Service check mode
The physical addresses for all devices connected to the AVC-LAN (including this product) are displayed. The current and past product conditions are checked by performing the system check and collecting the diagnosis memory data. Each address check result is displayed as follows: "OK", "Not connected", "Check", "Replace", "Old Version" or "No response".
Details display mode
This mode is available only when the service check result is "Check", "Replace" or "Old Version". For each physical address, the following information is displayed: - Logical address for the device where some failure occurs and the diagnosis codes (indicating details of the failure), which were obtained through system check - In addition to the above data, sub-code (indicating the device with failure), connecting confirmation no. (time stamp), and frequency of occurrence, which were obtained from diagnosis memory data
Diagnosis memory
clearance
< From the service check mode > The diagnosis memory data (codes) for all devices connected are cleared. < From the details display mode > The diagnosis memory data for devices selected is cleared. After memory clearance is completed, the mode is automatically shifted to the service check mode.
(6)Key operations for Memory clearance
(6)Key operations for Memory clearance
Memory clearance automatically ends.
(3) Key operations for entering Service check mode
(4)Key operations for entering the details display mode
(5)Key operations for returning to the service check mode
Note *1: To enter the diagnosis IN mode, use the buttons on the head unit.
(1) Diagnosis IN
While pressing the CH1 and CH6
With three times of beep sound, the mode
buttons simultaneously, press the
change operation completes.
DISC button three times.
(2) Diagnosis OUT
Keep the DISC button pressed for 3 seconds or more and turn the ACC switch OFF.
(3) Entering the Service check mode.
P
ress the TRACK UP button.
With a beep sound, the mode change completes. (4) Entering the Details display mode.
Press the CH2 button.
(5) Returning to the service check mode.
P
ress the CH3 button.
(6)Clearing the Memory data
Keep the CH5 button pressed for 3 seconds or more.
Change the display (forward)
Press the TRACK UP button.
Change the display (backward)
Press the TRACK DOWN button.
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Key operations
All elements on the LCD are lit. (This is for checking if the LCD is lit normally.) Note : In this mode, when any key except for TUNE UP is pressed, a beep will be heard once. (You can check if pressing keys are accepted normally by hearing beeps.)