Maintenance Manual
Table Of Contents
- 1 OVERVIEW Marti GTX / GRX
- 2 TECHNICAL SPECIFICATIOINS
- 3 INSTALLATION
- 4 SET UP
- 4.1 Password Organization
- 4.2 Factory Default Passwords
- 4.3 Display Menus and Navigation
- 4.3.1 START & DEFAULT FIELDS
- 4.3.2 TRANSMITTER FIELDS & MENU TREE
- OPERATION MENUS
- Field #02: Direct & Reflected Power
- Field #04: Multiplex Signal Level (Output Modulation)
- Field #05: Left & Right Signal Level in dB
- Field #06: L & R Signal Level / Analog Meter
- Field #07: RDS / SCA Auxiliary Modulation Level
- Field #09: Internal Voltages
- Field #10: Temperature, Data and Clock
- SETUP MENUS
- Field #21: Local/Remote control setup
- Field #22: Transmission Frequency setup
- Field #23: Output Power setup
- Field #24: LF Modulation Input Level setup
- Field #25: Auxiliary Input Level setup
- Field #26: Limiter setup
- Field #27: Transmission Mode, and Pre-emphasis Setup
- Field #28: Reference Deviation setup
- Field #29: Display Contrast setup
- Field #30: Time & Date setup
- Field #31: Elapsed Time
- Field #32: Password Management
- Field #33: Alarm Setup and Display
- Field #34: I/O Pin Allocation and Logic Level setup
- Field #35: Synthesis setup
- Field #37: Ethernet & Lan setup
- 4.3.3 RECEIVER FIELDS & MENU TREE
- OPERATION MENUS
- Field #02: Receiver Frequency
- Field #03: Received RF Field and Muting
- Field #04: MPX Modulation and Reception Field
- Field #04Modulation of the Multiplex Signal
- Fields #05 & #06: L and R Decoded Output Levels
- Field #08: Stereo Pilot Frequency level
- SETUP MENUS
- Field #22: Frequency setup
- Field #24: LF Output Level setup
- Field #25: Receiver Muting setup
- Field #26: De-emphasis setup
- Field #28: Optional Boards Detection
- Field #33: Alarm setup and display
- Field #34: I/O pin allocation and logic level setup
- Field #36 Left & Right Level
- Field #37 Headphone Volume
- Field #39 Serial Number
- 5 SERVICE & CHASSIS DIAGRAMS
33
©2021 Broadcast Electronics
• Field #33: Alarm Setup and Display
This menu shows the various alarm conditions which are associated with the general alarm line,
either located the front panel LED and the remote I/O signaling line. Some of them may be edited for
their threshold level while others are factory set and fixed. The following table lists all them:
• ALARM SETUP
• TEMPERATURE: ON
• PLL UNLOCK: ON
• HIGH VSWR: ON
• LOW POWER: ON/OFF
• NO MODULATION: ON/OFF
• OVERMODULATION: ON/OFF
• TEMP. AMBIENT: 55°C TEMP.
• HEATSINK: XX°C
• MAX REFL.PW: XX.X W
• MIN DIR. PW: XX.X W
• NO MOD. LEV.:-15.9dB
• NO MOD. TIME: 90sec
• UNLOCK TIME: 60sec
If the alarm is enabled, the red front panel "Alarm" LED and the corresponding remote signal line will
turn on. At the same time a flashing line will superimpose on the display specifying the highest
priority pending alarm. This alarm line will stop flashing whenever the control jog knob is moved to
permit navigation in the control and setup menus; at timeout, i.e. 2 or 3 minutes from the last access
it will superimpose again till alarm resets. The alarm reset is automatic and requires no action from
the user. The equipment has no alarm historical memory
• Field #34: I/O Pin Allocation and Logic Level setup
I/O PIN ALLOCATION
& LOGIC LEVELS SETUP
As described in Section 3.3, there are 3 I/O lines which are associated to corresponding pins of the
parallel remote I/O connector on the rear panel. This field permits setup to the corresponding
function associated to each pin with the following options ("NOT DEFINED" means that no alternate
function is assigned):
Inputs:
PIN 6: RF ENABLE
NOT DEFINED
Outputs:
PIN 2: ON THE AIR
REMOTE LOCKED
PIN 7: ALARM
NOT DEFINED
The factory default value is the one indicated on the first line. Subsequently, on the same menu it is
possible to choose the high or low logic level associated with the alarm. When the equipment is
locked to remote control operation, it is not possible to alter any preselection before unlocking this
control.