Pre-Check
PRE-CHECK1. MATSUSHITA MADE:
DIAGNOSES CHECK
a. Starting Diagnosis Mode (Service Check Mode)
1. Turn off the audio system and turn the IG switch to ACC. While pressing the preset switches "1" and "6" at the same time, press "CD" 3 times.
2. Reference:
- Beep sound is given 3 times and the system enters the service check mode.
- It may take about 40 second to complete the check.
- In the service check mode, the system check and the diagnosis memory check are performed, and the check results are displayed in ascending order of the device codes (physical address.)
Code No. (physical address) List
b. Finishing Diagnosis Mode
Press "CD" for 2 second or more, or turn the IG switch OFF.
c. Service Check Mode Result Display (for checking the current and the past system conditions)
1. Press the "TUNE" switch to see the check result of each device.
2. Check Result Display
3. To perform the Service Check again, press the preset switch "1".
d. Detail information Mode (when displaying the troubled device's DTC)
1. With "CHEC" or "ECHn" being display, press the preset switch "2" to go to the detail information mode.
2. Press the "TUNE" switch to display "System Check Result (SyS)" and "Diagnosis Memory Response (CODE)".
3. Displayed Items in Detail Information Mode
4. Check the trouble area referring to the DTC list.
5. To return to the service check mode, press the preset switch "3".
e. Clearing Individual DTC Memory (when clearing the memory of DTC detected in the pest individually)
Press the preset switch "5" for 2 second or more while the "ECHn" is displayed in the service check mode or during the detail information mode.
HINT:
- Beep sound is given once when the DTC memory is completely cleared.
- When DTC memory is cleared, only the component code (physical address) is displayed for the target component.
- To check DTC, press the preset switch "1" and perform the service check again.
f. Clearance of all DTC memory (when clearing all the memory of DTC detected in the past)
1. Start the diagnosis mode after repairing the trouble area.
2. Press the preset switch "5" for 2 second or more. ("CLr" is displayed at this time.)
HINT:
- Beep sound is given once when the DTC memory is completely cleared.
- When DTC memory for all the device is cleared, only the component codes (physical address) are displayed.
3. Press the preset switch "1" to perform the service check again, and check that no DTC is displayed for all the component codes (physical address).
2. FUJITSU TEN MADE:
DIAGNOSIS CHECK
HINT: Error codes over tuner and connected equipment are displayed on the screen of tuner.
a. Diagnosis start-up
For shifting to diagnosis mode, push "CD" switch 3 times with pressing "1" and "6" of PRESET switch at the same time while the audio power is OFF and ACC is ON.
(When "1-190" is displayed, the mode is transferred to LAN check mode.)
b. LAN check
When starting up the diagnosis mode, the mode turns to LAN check mode, the screen displays the code numbers (physical address) of tuner and connected equipment. Smaller codes are displayed in order, displayed code numbers are switched by operating TUNE "UP" or "DOWN" switch. In LAN check mode, by pressing "5" of PRESET switch for more than 2 seconds, diagnosis memory of each equipment can be deleted, when deletion is completed, the mode returns to LAN check mode.
Code No. (physical address) List
c. Finishing Diagnosis Mode
Press "CD" for 2 second or more, or turn the IG switch OFF.
d. System check
- When pressing "1" of PRESET switch in LAN check mode, the mode turns to the system check mode, the system performs self diagnosis of connected equipment and displays the results. ("SYS" (showing the system is under detection) is displayed.)
- Perform the operation shown in the following illustration, then read the result of the inspection.
HINT:
- It sometimes takes approx. 40 seconds. till the system inspection is completed.
- The chart shown is an example of when diagnosis code "21" appears on the physical address (190) equipment. (ROM error occurs on the radio receiver.)
- The smaller code numbers (physical address) are displayed in order (code No., diagnosis code, support code of diagnosis code (object equipment)).
- When no error is detected in the system, "00", is displayed.
- When an error code is detected, up to 6 codes per one system are displayed. Pressing TUNE "UP" or "DOWN" switches the display.
- In the system check mode, when pressing "6" of PRESET switch the mode returns to LAN check mode.
e. Diagnosis memory
1. In LAN check mode, when pressing "2" of PRESET switch the mode turns to the diagnosis memory mode. ("CODE" is displayed.)
The results of self diagnosis performed over tuner and connected equipment are memorized and displayed.
2. Perform the operation shown in the following illustration, then read the result of the inspection.
HINT:
- The smaller code numbers (physical address) are displayed in order (code No., periodic communication number when error occurs, diagnosis code, and support code of diagnosis code (object equipment)).
- When no error is detected in the system, "00" is displayed. When an error code is detected, up to 6 codes per one system are displayed. Pressing TUNE "UP" or "DOWN" switches the display. Each diagnosis code Is same as code in the system check mode.
- When pressing "6" of PRESET switch, the mode returns to LAN check mode.
- The following illustration given is an example of when diagnosis code "D1" appears on the code (190) and (240 or 360) equipment. (Communication error occurs between the radio receiver and CD changer.)
f. Diagnosis memory clear
1. After error is fixed, start up the diagnosis mode.
2. Continue pressing preset switch "5" for 2 seconds. (CLr is displayed.)
3. Press the preset switch "2" and transfer to the diagnosis memory mode and check that the normal code (00) is output.
3. IDENTIFICATION OF NOISE SOURCE
a. Identify the condition under which the noise occurs, and check the noise filter on the related part.
b. Reference:
- Make sure first that there is no noise from outside.
Failing to do so makes the noise source detection difficult and leads to misunderstanding.
- The noise should be removed in descending order of loudness.
- Setting the radio untuned makes noise noticeable, making the recognition of the phenomenon easier.