EBME Forums Forums Maintenance Technical Assistance Ohmeda 3740 Pulse oximeter - error codes

Dear Friends,

We are getting the following 2 errors in Ohmeda 3740 pusle oximeters.
1. Test signal DC reference error - service unit.

2. ROM test error low byte - service unit.

What can be the problems ? how to solve this ?

Also i would like to get the technical manual for datex 3740 pulse oximeters , kindly send it to my mail jerrytmathew@yahoo.com.
Thanks, Jerry.