Troubleshooting strategies 6-17
1.
Disconnect the rear terminal PCP cable (J18) from the
control PCP connector (J5).
2.
Pull off the top terminal block from the rear terminal
PCP and snap it to the upper arm of the link assembly.
Figure 6-9: Connecting inside service wires to terminal block
ISW wires
Connector/
rear terminal block
Rear terminal PCP
(top to bottom): Tip
Ring
Top of
terminal block
3. Probe from the positive and negative terminals on the
terminal block of the rear terminal PCP looking for ap
proximately 25 V DC. If this voltage is not present at the
terminal block or the polarity is reversed, there is a de
fective transformer or transformer wiring problem.
4.
If voltage is present, reconnect J18 to J5. If the VFD re
mains blank, replace the rear terminal PCP. Refer to
Replacing the rear terminal PCP
in Chapter 7.
5.
If this does not correct the problem with the terminal
closed, check for dialtone on the telephone line. If dial-
tone is present and the VFD remains blank, replace the
control PCP. Refer to
Removing the telephony and
control PCPs
in Chapter 7.
Figure 6-10 shows a flow ch^rt for diagnosing power
problems.
Millennium multi-pay terminal installation, operation, and maintenance guide
Summary of Contents for Millennium multi-pay M1211
Page 3: ...iv NTP 506 6501 203 Document issue 00 01 Status Standard Date January 1997...
Page 17: ...xviii Table of contents NTP 506 6501 203 Issue 00 01 Status Standard Date January 1997...
Page 21: ...t ATG 4 About this guide I NTP 506 6501 203 Issue 00 01 Status Standard Date January 1997...
Page 283: ...Customer orderable parts 9 11 Figure 9 4 Auxiliary view multi pay terminal chassis...
Page 304: ...A 16 Appendix A List of alarms NTP 506 6501 203 Issue 00 01 Status Standard Date January 1997...
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