Ram Test; Power On/Off - Fluke ScopeMeter 123 Service Manual

123
Service Manual
2. Check TP487 for +3V (supplied by D471).

7.5.12 RAM Test

You can use the Microsoft TERMINAL program to test the RAM. Proceed as follows:
1. Connect the Test Tool to a PC via the Optical Interface Cable PM9080.
2. Start the Terminal program, and select the following Settings:
3. Turn the test tool off. Keep the keys
4. In the terminal program type capital characters
5. Type
6. Type

7.5.13 Power ON/OFF

1. Check TP528 for +3V at power on, and 0V at power off (supplied by D471).
2. Check MS444 (ONKEY, D471) for +3V; when pressing the ON key the signal must
7-16
Terminal Emulation
Terminal Preferences
Communications
This will start up the mask software. You will hear a very weak beep now.
characters the test tool mask software will respond with an acknowledge 0 (zero).
This indicates that the communication between the Terminal program and the test
tool is accomplished.
ID
and press [Enter]
The test tool will return an acknowledge 0 (zero), and the string
Universal Host Mask software; UHM V2.1
If it does not, check the Terminal program settings, the interface connection, and the
test tool Optical Port (Section 7.5.5).
EX10,#H400000,#H20000
and press [Enter]
The test tool will return one of the following acknowledges:
0 the RAM is OK.
1 syntax error in the typed command
6 the RAM does not properly function.
Notice that the acknowledge overwites the first character of the message sent to the
test tool.
If not correct, do the Section 7.4.1. tests first!
below for 100...150 ms.
TTY (Generic)
Terminal Modes
Line Wrap
Local Echo
Sound
Baud Rate
Data Bits
Stop Bits
Parity
Flow Control
Connector
pressed, and turn the test tool on again.
(no ENTER!). After a number of
X
CR -> CR/LF
Inbound
Outbound
9600
8
1
None
Xon/Xoff
COMn