Verification - GE Corometrics 250cx Series Service Manual

Verification

Analog Ground
HR1 and HR2
UA
HR1 Mode
HR2 Mode
4-46
Maintenance: J102 Analog Output Connector DAC Static Test
This screen displays the J102 pin numbers, the signal descriptions, the range of
allowable values for measured voltages, the expected output voltages, and the
settings (meaning) adjustable using the Trim Knob control. Use this screen while
verifying and calibrating the digital-to-analog converters (DACs) on the
Communications Board (No. 13388 or 15297).
Access the Diagnostic Control screen by selecting the Service softkey at the bottom
1.
of the General Setup Screen. Input the Service Lock access code, then the Install
Options Screen 1 appears. Select the Tests softkey from the bottom of the screen.
(Refer to"Diagnostic Control Screen" on page 5-5 for instructions.)
Use the Trim Knob control to select the J102 softkey at the bottom of the screen.
2.
The J102 screen displays. (See figure "J102 Analog Output Connector Screen"
on page 4-47.)
The Range and Voltage fields can be displayed using a decimal point or a comma
3.
as a separator. Each activation of the Decimal softkey at the bottom of the screen
alternates between using a decimal and a comma.
4. Use the Trim Knob control to cycle through the available settings for each field.
The expected voltage for each J102 pin number changes accordingly.
For each pin, select a value in the Meaning field and measure the expected output.
This field is not adjustable. Use J102, pin 3 as a ground when making measurements
on other pins.
Use the Trim Knob control to select: – – – (0 bpm) or 30–240 bpm in increments of
1 bpm.
Use the Trim Knob control to select from the full range of mmHg or kPa in
increments: mmHg ranges from 0-100 in steps of 1; kPa ranges from
0-13.3 in steps of 0.1 or 0.2 (based on rounding from mmHg).
Use the Trim Knob control to select: – – –, FECG, Off, US, or INOP.
Use the Trim Knob control to select: TEST, FECG, INOP, US, or MECG.
250cx Series Maternal/Fetal Monitor
2036947-001
Revision C