Matsushita Electric KX-TCD952NLB, Service Manual

Page: 31 / 62

13. Press POWER RAMP.
14. Check the Burst fits mask.
15. Press MENU UP.
16. Press BER.
17. Note the Sensitivity (reduce RF LEVEL for a BER of approx.
1000ppm) : the RF LEVEL must be < - 90 dBm.
18. Press MENU UP.
19. Press BEARER RELEASE.
Note:
These tests can be repeated on Traffic Carriers 5 and 9.
14.6. TELEPHONE LINE TESTS
1. Connect the tel line from the base under test to the line simulator.
2. Send batch file “OFFHOOK”.
3. Check if the green “In-Use” LED is on.
4. Set the line current to 40 mA on the line simulator.
5. Send batch file “ONHOOK”.
6. Check that the line current is 0 ± 0.5 mA.
7. Check if the green “In-Use” LED is off.
8. Send batch file “OFFHOOK”.
9. Check the DC Voltage on TP45. It must be 9.5 ± 0.5V.
10. Send batch file “LINIMP 1”.
11. Check the DC Voltage on TP45. It must be < 3.5V.
12. Send batch file “LINIMP 0”.
13. Send batch file “PULDIAL”.
14. Observe on the line simulator current meter that 5 dial pulses are
output causing the current to reduce to approx. 20mA.
15. Send batch file “STRTDTMF”.
16. Check on the scope that a DTMF waveform is output on that tel
line.
31