Tektronix Option 10 Service Manual page 183

All Options-Maintenance
24X5B12467B Options Service
Routine
Type
GPlB Board Test
Test
Number
11
Table
5-4
Diagnostic and Exerciser Routines
Routine
Name
RAM
GPlB Controller
Power Latch
Output Latches
Wait State
Cali bration constant test
Gate Array (U6190)
Error
Code
01
02
03
04
05
Error Code Meaning
Error in RAM or associated circuitry.
Malfunction of U4818, decoder U4708, or
buffer U4701.
Failure in latch U4801, gate U4735D, Q4745,
or buffer U4701.
Malfunction of latch U4625, gate U4731,
buffer U4701, a GPlB STATUS indicator, or
latch U4626.
Malfunction of U4831 B, Generator U4735A,
U4801, U4838A.
Delay Offset constant Board Tests out of
limit. Recalibrate the CTT.
Clock Frequency constant out of limit.
Recali brate the CTT.
Gate Array bit 0 I10 path test. ReadIWrite
error. Check U6190, R5935, U6290A, U6250,
and U5950.
Gate Array bit 1 Readwrite error. Check
U6190, U62$OB, U6250, U5950, and R5934.
Gate Array bit 2 Readwrite error. Check
U5952, U6190, U6290C, U6250, U5950, and
R5933.
Gate Array bit 3 Readwrite error. Check
U5952, U6190, U6290A, U6250, U5950,
and R5932.
Gate Array bit 4 Readwrite error. Check
U5952, U6190, U6290B, U6250, U5950,
and R5931.
Gate Array bit 5 Readwrite error. Check
U5952, U6190, U6290C, U6250, U5950,
and R5930.