Section 16: Diagnostics And Troubleshooting; General Diagnostics; Restoring Factory Default Programming; Hardware Reset - DSC PC4020 Installation Manual

Section 16: Diagnostics and Troubleshooting

16.1 General Diagnostics

Ref #: [04]
The diagnostics function is designed to help you track down
any problems with the installed modules.
If there is no problem the keypad will display 'PC40X0 Sys-
tem No Faults Found'.
If there is a problem, the keypad will display 'Error... Mod-
ule'. This message will be accompanied by either 'E' 'T' or
'LV' followed by a number. The number represents the mod-
ule (see list below). The letters represent the following:
• E = communications error. The main panel has lost com-
munications with the module.
• T = tamper. The tamper zone on the module has been acti-
vated.
• LV = low voltage. The module is not receiving enough
voltage from the Combus.
Below is a list of the indicated numbers and which modules
they represent.
Indicated #Module #
1-8
9-24
25-28
29-44
45-53
54-69
70
71
72-87
88
89-92
93
94-109
110

16.2 Restoring Factory Default Programming

These options are only available during the first 10 minutes
after power up. To access these sections, disconnect then
reconnect the AC and battery power. Then, enter [*] [8]
[Installer's Code], followed by reference number [0402] to
default the main panel, or [0403] to default the
ESCORT4580 (if installed).
Factory Default (Software)
Ref #: [0402]
Once this selection has been made, the keypad will read
'Confirm Default Press *'. Press the [*] key to confirm the
operation. To cancel the default, press the [#] key.
Once the [*] key is pressed, the programming keypad will
display the message 'Power System Down and Restart'.
Remove the battery and AC connections to the control
panel. This will erase all programming and reset the system
to its factory default settings. All modules will have to be
re-enrolled.
When using AML devices, the AML Key will return to [00]
upon resetting the panel's software.
46
For Future Use
LCD45XX - #1-16
PC440X - #1-3
PC41XX - #1-16
PC4216 - #1-9
PC4204/PC4204CX - #1-16
Not used
ESCORT4580
PC4820 - #1-16
PC4701
PC4702 #1-4
PC4936
PC4850 #1-16
Alt. Comms
Default ESCORT4580 (if installed)
Ref #: [0403]
Once this selection has been made, the keypad will read
'Confirm Default Press *'. Press the [*] key to confirm the
operation. To cancel the default, press the [#] key.
Once the [*] key is pressed, the programming keypad will
display the message 'Resetting 4580 Module'. Once the
default is complete, the keypad will display '4580 Default is
Complete'. The ESCORT4580 module will be reset to its fac-
tory default settings.

16.3 Hardware Reset

If the installer's code is lost inadvertently, the only way to
reprogram the system is to perform a hardware reset.
NOTE: If the Installer's Lockout feature is enabled, there is
no way to reprogram the system without entering the cor-
rect installer's code. Panels returned to the manufacturer
with this feature enabled and exhibiting no other problems
will be subject to an additional service charge.
NOTE: Delete any enrolled AML zones from the system
before performing a Hardware Reset.
To reset the panel to its factory default settings, perform the
following:
1. Power the system down by removing both the AC con-
nections and the battery power to the control panel.
2. Short the Z1 and PGM1 terminals on the control panel.
Nothing else should be connected to Z1 or to the PGM
terminals.
3. Restore power to the control panel. Wait for 20 seconds.
4. Power down the panel by removing both the AC and
battery connections.
5. Remove the short between the Z1 and PGM1 terminals.
The system will have reloaded all factory default set-
tings. All modules will have to be enrolled again. The
event buffer is the only part of the system's memory that
will not be restored.
6. Power up the panel. Connect the battery first, then the
AC.

16.4 Viewing Trouble Conditions

The alarm control panel continuously monitors a number of
possible trouble conditions. If one of these conditions
occurs, the keypad Trouble light will turn on and a beeping
sound will be heard every 10 seconds. Press the [#] key to
silence the keypad. The Trouble light will stay on until the
trouble is cleared.
If the Audible AC Tbl option is turned on (ref # [000200]),
keypads will sound trouble beeps at the end of the AC Fail
Delay (see 10.9 'Transmission Delay') when the panel loses
AC power. If the option is turned off, keypads will not
sound trouble beeps when the panel loses AC power. The
option is off by default.
If the Latch Troubles option is turned on (ref # [000200]),
whenever any panel or module AC or battery trouble
occurs, the panel will not restore the trouble until it has
been viewed using the [*][2] trouble display. The trouble
will not be restored until it has been viewed, even if the
cause of the trouble has been physically restored. If the
option is turned off, the panel will restore these troubles as
soon as the trouble condition is physically restored. The
option is off by default.
Trouble conditions can be transmitted to the central station,
if programmed (see 12.7 'Reporting Codes').