Raymarine Chartplotter RL70CRC PLUS User Manual

Page of 248
Chapter 9: Maintenance and Problem Solving
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Chapter 9: Maintenance and Problem 
Solving
This chapter provides information on routine maintenance and on possible 
causes of problems you may experience with your 
hsb
2
 series display unit.
9.1 Maintenance
WARNING:
The display unit contains high voltage
. Adjustments require specialized 
service procedures and tools only available to qualified service 
technicians - there are no user serviceable parts or adjustments and the 
operator should not attempt to service the equipment. The operator 
should not remove the rear cover of the display.
Switch off the display unit before removing the power cord.
Routine Checks
The LCD display is a sealed unit. Maintenance procedures are therefore 
limited to the following periodic checks:
Examine the cables for signs of damage, such as chafing, cuts or nicks.
Check that the cable connectors are firmly attached.
Cleaning Instructions
Cleaning the Display
CAUTION:
Take care when cleaning the display.  Avoid wiping the display screen 
with a dry cloth - this could scratch the screen coating.
Do not use acid, ammonia based or abrasive products.
Ensure power is off, wipe the display clean with a damp cloth.
If necessary, use IPA (iso-propyl alcohol) or a mild detergent solution to 
remove grease marks.
EMC Servicing and Safety Guidelines
Raymarine equipment should be serviced only by authorized Raymarine 
service technicians. They will ensure that service procedures and replace-
ment parts used will not affect performance.  There are no user serviceable 
parts in any Raymarine product.
Some products generate high voltages, so never handle the cables/connec-
tors when power is being supplied to the equipment.