March 2000 © TOSHIBA TEC
11-19
DP120F/DP125F Troubleshooting
1.5.3 MODEM TEST (Factory Test)
[MENU], [9], [4], [03]
This test is used to check the MODEM signal outputs at different transmission speeds and
different frequencies. By measuring the difference in signal strength at different frequencies, it is
possible to plot the phone line's bandpass.
This test is performed at the factory for inspection and not required in the field.
(1)
Use the [
↑
] or [
↓
] key to select “03. MODEM TEST”, and then press the [ENTER] key.
MODEM TEST
1.LINE-1
2.LINE-2
<Remarks>
“2. LINE-2” is displayed only when LINE-2 is installed.
(2)
Select “1. LINE-1” to test the LINE-1 side, and “2. LINE-2” to test the LINE-2 side, then
press the [ENTER] key.
MODEM TEST
LINE-1
2100Hz
(3)
Select the frequency by pressing the [START] key.
<Remarks>
The frequencies are displayed as in the following order.
2100Hz
→
G3(V34)
→
G3(V17)
→
G3(V29)
→
G3(V27)
→
2400BPS
→
300BPS
→
1850Hz
→
1650Hz
→
1100Hz
→
1300Hz
→
ANSam
→
CM
→
CI
→
Repeats
(4)
When you complete the test, press the [STOP] key to return to the standby mode screen.
(5)
Depending on the result of the test, replace the Main PBA or the MODEM PBA, referring
to "Chapter 8 Removal/Replacement/Adjustment" on page 8-46 or 8-42.
Summary of Contents for DP120F
Page 1: ...PLAINPAPERFACSIMILE File No 31200001 R0112216901 TTEC ...
Page 401: ...DP120F DP125F Circuit Description 7 92 March 2000 TOSHIBA TEC 07 05 00 Fig 7 5 1 ...
Page 656: ...DP120F DP125F Troubleshooting 11 44 March 2000 TOSHIBA TEC ...
Page 700: ...DP120F DP125F Appendix 12 2 March 2000 TOSHIBA TEC 1 2 Error Count List ...
Page 701: ...March 2000 TOSHIBA TEC 12 3 DP120F DP125F Appendix 1 3 Function List for Maintenance ...
Page 702: ...DP120F DP125F Appendix 12 4 March 2000 TOSHIBA TEC 1 4 Drum Unit ...
Page 703: ...March 2000 TOSHIBA TEC 12 5 DP120F DP125F Appendix 1 5 Memory Dump List ...
Page 706: ...SHUWA SHIBA PARK BLDG A 2 4 1 SHIBA KOEN MINATO KU TOKYO 105 8524 JAPAN ...