Tektronix TG8000 Service Manual

GPS7 module troubleshooting
Troubleshooting procedures
Power on self test
When you first apply power to a TG8000, it runs a Power On Self Test (POST).
If an error is encountered during this POST the display will show one of several
error codes. (See Table 10-4.) Watch the display during boot up and note any
error codes.
Table 10-4:
POST error codes
Error
Code
Meaning
Action
1:
CPLD constant 1 check (0xAAAA or 0x00AA based on cpld version at addr 0x8)
2:
CPLD constant 2 check (0x5555 or 0x0055 based on cpld version at addr 0xA)
3:
CPLD R/W error (writes 0x5555 to addr 0x102 and confirms)
4:
CPLD R/W error (writes 0xAAAA to addr 0x102 and confirms)
5:
Error copying DO Fpga to GPS7 EEPROM
7:
Error copying BB Fpga to GPS7 EEPROM
9:
DO Fpga constant check (0x55 at addr 0x501000)
10:
DO Fpga R/W error (writes 0x5555 to addr 0x501024 and confirms)
11:
DO Fpga R/W error (writes 0xAA AA to addr 0x501024 and confirms)
12:
BB Fpga R/W error (writes 0 x5555 to addr 0x400008 and confirms)
13:
BB Fpga R/W error (writes 0xAAAA to addr 0x400008 and confirms)
14:
DO fpga Trimble Module communications error - GPS receiver is disconnected or failed
Try another GPS7 module in
the mainframe slot 1. If you
do not hav
e another module,
or if the 2
nd
module does not
show an error code, return the
GPS7 modu
le for repair
255:
Not an error. This code may appear following some firmware updates.
No actio
n
Check the installed
firmware version
Use thi
s procedure to check the installed firmware versions:
1. Access the UTILITY menu.
a. From the TG8000 main menu, press the u p (▲)ordown(▼) arrow
buttons to select UTILITY.
b. Press the ENTER button to enter the utility submenu.
2. Access the Software Version information.
a. Press the up (▲)ordown(▼) arrow buttons to select VERSION INFO
(F/W).
b. Read the firmware version.
3. If the CPU is not Version 1.1 or later, then install current software. The latest
software is available on the Web at w ww.tektronix.com/downloads.
TG8000 Multiformat Test Signal Generator Service Manual 10–11

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English