Furuno AD-100 TV Converter Box User Manual


 
2-2
Symptom Possible Cause Remedy
The bearing display
deviates often.
*Jumpers and DIP switches are
set wrong.
*Correct the setting.
Key input not accepted *Defective keyboard *Call for service.
The status of the LEDs on the Processor Board show equipment condition.
CR21 CR22
OFF OFF No power
OFF ON Power supply less than 5V, or Stator signal breaking detection/
Power fail detection activates.
BLINK OFF Defective CR22
BLINK ON Power supply and CPU are normal.
3. SELF TEST
The AD-100 employs Self tests to check it for proper operation. These are as follows.
*Display LED test
*Analog Data Input Test
*DIP SW Setting Display
*Program Version Display
*Key Input Test
1) Sequence
DISPLAY LED TEST
*The HOLD lamp and all the segments on the display lights for 1 sec.
*The display changes from “0000”, “1111” – “8888” “9999”. every 1 sec.
ANALOG DATA INPUT TEST
*The input data of S1, S2, S3, R1, R2 alternately appears on the LED for 1 sec. (This test
is for factory use only.)
LED Display
1 to 5 (1=S1, 2=S2, 3=S3, 4=R1, 5=R2)
Decimal point
0 to 255 (Input analog data)
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