Novametrix Medical Systems MARS PO2 TECH 2001, Руководство по обслуживанию

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Procedure
Section 7
Electronic Tests
Rev. 01 Model 2001 Service Manual
31
8. Short out capacitor C90 by installing a jumper wire from R59 to R56 as shown.
9. Connect the RS232 test fixture to J101 and the saturation test jack to the saturation input
connector.
10. Run monitor test 1. Press the Test softkey, “Automatic Test” will appear. Press the Test softkey
again to initiate the test, Follow the prompts in each test and verify each test passes.
A series of auto tests will be performed, if any failures are encountered the
monitor will default to MONITOR TEST 2. Of the list below only the tests with * next to them are
performed in the auto test. Upon completion of the auto test the monitor will default to
MONITOR TEST 2.
The following is a list of the monitor tests available:
Test# Description
1 Auto Test
2* RAM Test
3* ROM Test
4* Real Time Clock Test
5* Audio Volume Test
6* Audio Frequency Test
7* RS232 Loopback Test
8 Keyboard Test
9 Mains Test
10* 20 Bit ADC Test
11* 8 Bit ADC Test
12 Display ADC Channels Test
13 515A-> PC Interface Test
11. Disconnect the jumper wire, the RS232 test fixture, and the saturation test jack.
12. Connect the TB500B to the saturation input connector. Set the saturation to 0 and the
attenuation to 5.
13. Using the Next softkey increment to monitor test 12 (Display ADC channels). Press the Test
softkey, “Display ADC channels” will appear. Press the Test softkey to initiate the test. Press
the Prev softkey. Verify the LED pwr=20. Press the
Prev softkey until “IR Adc=xxxxx” appears,
verify the value displayed is within the limits specified below. Press the Prev softkey again,
“RED Adc=xxxxx” will appear. Verify the value displayed is within the limits specified. Press the
exit
softkey and set the TB500B saturation to 100 and attenuation to 3.