 |
 |
TPA-CEC-RR is used for testing HDMI CTS 1.3c CECT 7-1 and 7-2. CECT 7-1
tests to ensure that DUT CEC line driver logic ‘0’ and ‘1’ output voltage
level is within the limits of the specification. CECT 7-2 tests to ensure
the maximum rise time and fall time of the CEC line driver on the DUT is
within the limits of the specification. In the test procedures, it says to
test with the CEC line connected to +3.3V via 3Kohm +/-5% resistor and then
repeat the test with the CEC line connected to ground via 150K +5%/-0%
resistor. The TME will instruct the user how to set up the TPA-CEC-RR to
run 7-1 and 7-2 tests properly. Also please refer to HDMI CTS 1.3c.
TPA-CEC-R is used for testing HDMI CTS 1.3c Test ID 7-15 and 8-14. Test ID
7-15 (testing source DUT) and Test ID 8-14 (testing sink DUT) test to ensure
that the DUT does not degrade communication between other CEC devices when
power is applied, when power is removed, and, if supported, in standby mode
(the line must not be pulled down by the powered off device). In the test
procedures, it says to connect the CEC line to the settings that TPA-CEC-R
switch positions 1 through 4 support. Switch position 2 and 5 are equivalent,
but position 2 is easier to measure than 5. Position 6 is for debugging
purposes only. So, you will need to test the DUT using switch positions
1, 2, 3, and 4. Please refer to HDMI CTS 1.3c.
|
|
 |
