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AFTER-SALES SERVICE
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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) is 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) is ON.
* Functions mentioned in the items (14), (15) and (17) may be optional, answer is not necessary.
No. Check Item Result
(1) Power can be turned on. (The lamp on the operation panel is lit) YES NO
(2) A few minutes after powering-on, it will become standby status (TX Ready). YES NO
(3) When powering-on (or TX ON), the CRT displays something (CRT is lit). YES NO
(4)
The scanner rotates at the transmission (TX) ON.
YES NO
(Check the following items while transmission is ON)
(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,
YES NO
GAIN maximum, IR-OFF and range 48 NM.
(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
If equipped with an interswitch, when switching from the straight mode
*(17) () to ( × ), the failures (items marked NO) in the above (1) to (16), are YES NO
switched over to the other unit.
(18) Others (Error message, etc.)
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