|TEK 2754 Service Vol1 Part2.pdf|| Maintenance - 275412754P Service Vol. 1
MICROCOMPUTER SYSTEM MAINTENANCE
Several maintenance aids are built into the micro- "ROM XX TESTS BAD. PUSH A BUTTON TO CONT."
computer system. These operating tests demonstrate
correct performance or indicate the location of a prob- "ROM XX MISPLACED. PUSH A BUTTON TO CONT."
lem, if any.
The switch settings that set up two of these tests "TIMER TESTS BAD. PUSH A BUTTON TO CONT."
are described first. These are followed by descriptions Cross-reference tables between the ROM and RAM
of the three tests. numbers given in error messages (XX) and the circuit
numbers of the parts are given in Table 6-8 and Table
In the first test, the microcomputer executes a self-
test that verifies, as much as possible, correct opera-