Raymarine R21 Service Manual download pdf (Page 16)

Priority: Distribution List:

URGENT

(For immediate attention)

Distributors & Service Agents

ROUTINE

(Action at next Service Call)

Installing Agents & BoatBuilders

Key Stockists

INFORMATION ONLY

Internal Release

Raymarine,

Raymarine House,

Quay Point,

Portsmouth,

Hampshire,

PO6 3TD, UK.

T: +44 (0)23 9269 3611 ext 2023

F: +44 (0)23 9266 1228

Raymarine Inc.,

21 Manchester Street

Merrimack, NH 03054-4801

USA

T: 1-603-881-5200

F: 1-603-864-4756

www.raymarine.com

Technical Update

Issue Number: TU228

Page 1of 2

Date: 1

August 2005

Author:

Bob Sims

Product Description:

SmartPilot S1 & S1G Course Computers, Corepacks &

Systems

Serial Number(s): All

Subject

Fluxgate Compass Circuit Fault

Please be advised that infield feedback has highlighted a potential fluxgate compass circuit fault, which can affect current

S1 and S1G SmartPilot course computers.

The fault will cause the compass heading to drift, jump segments or show large inaccuracies.

The fault is associated with the wrongly reverse placement of the fluxgate drive AC coupling capacitor C43. The fault

does not affect all S1 Course Computers and is only triggered when the tolerance of the capacitor is at the limits of its

value specification.

The following service procedure should be taken to rectify faulty units:

¾Follow procedure over.

¾Remove PCB from Course Computer Case

¾Locate C43 Capacitor

¾Unsolder & remove from PCB

¾Replace and re-solder in reverse (see diagrams)

¾Replace PCB into case

¾15mins labour per unit can be claimed against warranty

¾For onboard service follow the normal warranty claims procedure

For further information contact Raymarine’s Technical Services Department.

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