Matrix U3x-01, Service Manual

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7.8 TRoUBleSHooTiNg - HeART RATe iSSUeS
HeART RATe fUNCTioN DoeS NoT WoRk oR iS ReADiNg iNCoRReCTly
PoSSiBle CAUSeS:
1) The chest strap being used is not making good contact with the user's chest.
2) The chest strap is at a low battery status.
3) The chest strap is damaged.
4) The HR grips are damaged.
5) The HR board is damaged.
6) The UCB is damaged.
SolUTioN:
1) Re-center the chest strap below the user's pectoral muscle (Figure A) and check again.
2) Replace the battery in the chest strap.
3) Replace the chest strap.
4) If there is no HR present, replace the HR grips.
5) If there is a HR present but it is much higher than normal, replace the HR board.
6) If replacing the HR grips and board does not resolve the issues, replace the console.
figURe A
CHAPTeR 7: TRoUBleSHooTiNg