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JRC JMA9933SA Manual

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Radar Failure Check List
When placing an order for repair of the product, it is requested that you could confirm the check items
and fill the results and sent the sheet to our contact.
If there is any unclear items, contact the ship on which the product is installed, and give the correct
information on the product.
Ship name:
Phone: Fax:
Radar general model name: JMA-
Serial No. :
(Write the full model name correctly)
（1） Check the following items in the order of the number, and circle the applicable answer between
YES or NO. If the item cannot be determined as YES or NO, explain in detail in the item (18),
others.
（2） If any of the items (1) to (5) if marked as NO, check the fuse of the product (refer to Section 8.2
and 8.3).
（3） Check the items (4) to (17) while the transmission (TX) in ON.
*Function mentioned in the items (14), (15) and (17) may be optional, answer is not necessary.
No. Check Item Result
（1）
Power can be turn on. (The lamp on the operation panel is lit) YES NO
（2）
A few minutes after powering-on, it will become standby status . YES NO
（3）
When powering-on (or TX ON), the LCD displays something (LCD is lit). YES NO
（4）
The scanner rotates at the transmission (TX) ON.
(Check the following items while transmission is ON)
YES NO
（5）
Current is supplied to the magnetron. (Refer to the instruction manual) YES NO
（6）
Tuning is enabled. (Check with the range of 6 NM or more) YES NO
（7）
Fixed marker is displayed. YES NO
（8）
VRM is displayed. YES NO
（9）
While noise is displayed while set at STC and FTC minimum,
GAIN maximum, IR-OFF and range 48 NM.
YES NO
（10）
Target reflection echo is displayed. YES NO
（11）
Sensitivity of reflection echo is normal. YES NO
（12）
EBL is displayed. YES NO
（13）
cursor mark moves. YES NO
*（14）
GYRO course can be set and normally displayed. YES NO
*（15）
LOG speed can be normally displayed. YES NO
（16）
ARPA works normally. YES NO
*（17）
If wquipped with an interswitch, when switching from the straight mode (| |) to
(×), the failures (items marked NO) in the ablve (1) to (16), are switched over to
the other unit.
YES NO
（18）Others (Error message, etc.)
… 291 …


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