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
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• Field #33: Alarm setup and display
As in the transmitter this field displays the various alarms that sum up to the general alarm signal,
and allow some changes to them. The following table lists the alarms for the receiver:
• ALARM SETUP
• TEMPERATURE: ON
• PLL UNLOCK: ON
• LOW RF INPUT: ON/OFF
• MISTUNING: ON/OFF
• NO MODULATION: ON/OFF
• OVERMODULATION: ON/OFF
• HIGH TEMPERAT.: 55°C
• LOW RF INPUT: -xxdBm
• NO MOD. LEV.:-15.9dB
• NO MOD. TIME: 90sec
• UNLOCK TIME: 60sec
• Field #34: I/O pin allocation and logic level setup
As described in the proper section, there are at least 4 I/O lines which may be associated to
corresponding pins of the parallel remote I/O connector on the rear panel. This submenu permits to
choose the corresponding function to associate to the pins with the following options
Inputs:
PIN 6: AUDIO MUTING
REMOTE LOCK
Outputs:
PIN 2: MODULATION OK
REMOTE LOCKED
PIN 7: ALARM
FIELD GOOD
PIN 3, 8: FIELD GOOD
ALARM
The factory default is the first line for each pin. All of these lines may be preset active high or low in
the same menu.