OPERATION
3-14
Revised February 1997
Part No. 001-9750-005
on) but does not automatically turn back on again
when the ignition switch is turned off. Therefore, it
must be manually turned on after starting the vehicle.
Power Switch - The current horn alert mode does not
change when power is turned on and off using the
front panel power switch.
Mode A-2 (Manual On and Off)
(Transceiver Software Version 214 and later)
The current horn alert mode does not change
when power is turned on and off by either the power or
ignition switch.
Mode B (Automatic Off and On)
(Transceiver Software Version 213 and later)
Ignition Switch - The horn alert is always off when the
ignition switch is turned on, and always turns on when
the ignition switch is turned off (if there is a power-off
delay programmed).
Power Switch - The horn alert is always off when the
power switch is turned on.
Option Switch and Menu Mode Control
The HORN option switch or Menu Mode
“HORN/LIGHT” parameter (see Section 3.5.12) can
be used to change the current condition. However, the
automatic operation described in the preceding modes
overrides an on or off condition that may have been
selected by the switch or menu parameter.
Permanently Enabling Horn Alert
The profile programming for the horn alert in the
Menu screen (see next section) is in effect only until
the first time it is manually or automatically changed.
If neither an option switch or menu parameter is
programmed and the default is set to “disabled”,
operation is as follows:
Mode A1
- If the ignition switch controls power, this
mode cannot be used because the horn alert automati-
cally turns off the first time the ignition switch is
turned on and there is then no way to turn it back on. If
the ignition switch does not control power, the horn
alert is always enabled when transceiver power is on.
Mode A2 -
If the horn alert is to be always enabled
when transceiver power is on, this mode could be
used.
Mode B -
This mode could be used if the ignition
switch controls power. The horn alert is then always
disabled when the ignition switch is on and enabled
during the turn-off delay. However, if the ignition
switch does not control power, it cannot be used
because the horn alert turns off the first time power is
turned on and there is no way to turn it back on.
3.6.5 PROFILE
When programming the menu described in
Section 3.5, a default setting for most items can also
be selected. This default setting can establish the
power-on profile of the transceiver. For example, the
backlight could be on when power is turned on.
However, if an item can be changed by the user in
the Menu Mode or by an option switch, it returns to
the condition that was last selected by the user. There-
fore, the default setting is fixed only if the parameter is
not controlled by the Menu Mode or an option switch.
The functions that can be programmed in the profile
are as follows. If a function is not programmable, it
returns to the last selected state or the state it was in
when power was turned off.
Auto-Registration
Priority
Auxiliary 1 and 2
Radio Sounds
Backlight Control
Scan List Save
Bank Select
Scan Type Select
Encryption
Talk-around
External PA
Status
LTR System Search
View Angle Adjust
3.6.6 BANKS
Banks of systems can be programmed to allow
the transceiver to operate with different radio person-
alities. For example, one bank could be programmed
for operation in Chicago and another for operation in
St. Louis. Each bank can contain any of the systems
that have been programmed, and they can be
numbered differently. Only the systems in the
currently selected bank can be selected or scanned.
Summary of Contents for Summit DM 975x
Page 105: ...MULTI NET SYSTEM OVERVIEW 5 10 Revised February 1997 Part No 001 9750 005 ...
Page 108: ...CIRCUIT DESCRIPTION 6 3 August 1993 Part No 001 9750 001 Figure 6 1 Transceiver Block Diagram ...
Page 123: ...CIRCUIT DESCRIPTION 6 18 August 1993 Part No 001 9750 001 ...
Page 131: ...SERVICING 7 8 Revised January 1995 Part No 001 9750 003 ...
Page 156: ...9 19 Revised December 2000 Part No 001 9750 007 TRANSCEIVER EXPLODED VIEW PART 1 ...
Page 168: ...Revised January 1995 Part No 001 9750 003 10 11 INTERCONNECT SCHEMATIC ...
Page 169: ...Revised January 1995 Part No 001 9750 003 10 12 DISPLAY BOARD SCHEMATIC ...
Page 171: ...Revised January 1995 Part No 001 9750 003 10 14 RF BOARD SCHEMATIC REVISED 800 MHZ ...
Page 172: ...Revised January 1995 Part No 001 9750 003 10 15 RF BOARD BOARD LAYOUT ALL 800 900 MHZ ...
Page 173: ...Revised January 1995 Part No 001 9750 003 10 16 RF BOARD BOARD SCHEMATIC 900 MHZ ...
Page 174: ...Revised January 1995 Part No 001 9750 003 10 17 RF BOARD BOARD SCHEMATIC UNREVISED 800 MHZ ...
Page 178: ...Revised January 1995 Part No 001 9750 003 10 21 PA BOARD SCHEMATIC 900 MHZ 30W ...
Page 179: ...Revised January 1995 Part No 001 9750 003 10 22 PA BOARD SCHEMATIC 900 MHZ 15W ...
Page 181: ...Revised January 1995 Part No 001 9750 003 10 24 PA BOARD SCHEMATIC UNREVISED 800 MHZ 35W ...
Page 182: ...Revised January 1995 Part No 001 9750 003 10 25 PA BOARD SCHEMATIC UNREVISED 800 MHZ 15W ...
Page 183: ...Revised January 1995 Part No 001 9750 003 10 26 AUDIO LOGIC BOARD SCHEMATIC PART 1 OF 2 ...
Page 184: ...Revised January 1995 Part No 001 9750 003 10 27 AUDIO LOGIC BOARD SCHEMATIC PART 2 OF 2 ...
Page 185: ...Revised January 1995 Part No 001 9750 003 10 28 AUDIO LOGIC BOARD LAYOUT TOP VIEW ...
Page 186: ...Revised January 1995 Part No 001 9750 003 10 29 AUDIO LOGIC BOARD LAYOUT BOTTOM VIEW ...
Page 188: ...Revised January 1995 Part No 001 9750 003 10 31 REMOTE TRANSCEIVER INTERCONNECT SCHEMATIC ...
Page 189: ...Revised January 1995 Part No 001 9750 003 10 32 REMOTE CONTROL UNIT INTERFACE BOARD SCHEMATIC ...
Page 216: ...Part Number 001 9750 007 12 00 hph Printed in U S A ...
