Installation guide

D6600/D6100 | Operation and Installation Guide | 15.0 Troubleshooting Guide
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Bosch Security Systems | 4/05 | 4998122704F 31
15.0 Troubleshooting Guide
The D6600 consists of several plug-in assemblies that you can easily replace in the field (components and controls
on individual assemblies are shown starting in Section 3.0 Card Functions and Locations on page 6).
Do not attempt to repair individual assemblies. Return any failed assemblies to Bosch Security
Systems for testing and repair. Use this Troubleshooting Guide to identify failed modular components.
Table 11: Hardware Troubleshooting Guide
Problem Symptom Solution
• Pull the line card out of the receiver, and re-insert it to ensure
the card is properly connected.
• Swap the connecting cord with a telephone line that operates.
If the original OL/LF LED remains a steady red, the problem is
with a plug-in card. Replace the line card with a spare. If the
OL/LF LED for the new card is a steady red, change the line
terminator card.
• If the OL/LF LED on the original troubled card goes out and the
OL/LF indicator on the previously untroubled card lights when
you swap connecting cords, the trouble is with the telephone
line. Replace the telco line connecting cord.
If the OL/LF LED is still on, the trouble might
be in the telephone line. Report the trouble to
the telephone company.
Line Card OL/LF
LED steadily glows
red.
Telephone line, telephone
connecting cord, line card, or
telco terminator is defective.
Take immediate action if a telephone line is out of order and is the first line in a rotary or hunt group.
Have the telephone company busy the defective line at the telephone exchange.
If emergency service is not available, call the troubled line and leave the calling handset off the hook.
Do not hang up. Incoming alarm signals see a busy signal and rotor (hunt) to another line in the hunt
group. This procedure does not work for Wide Area Telephone Service (WATS) lines.
Menus cannot be
accessed.
• Incorrect password
• Defective keypad panel
• Defective CPU card
• Default password is “6600.”
• Ensure a secure connection of ribbon cable between CPU and
front panel.
• Defective or loose cable
between the CPU card
and display panel or user
interface card
• Ensure a secure connection of ribbon cable between CPU and
front panel.
• Defective user interface
card
• Swap CPU Card to confirm it is the problem.
Printer works but no
display.
• Defective CPU