Lexicon LXP-5 Service Manual

LXP-5 Service Manual
Performance
Verification
ADJUST Knob
Position
Slave Diagnostic
Program Names
MIN
Run All Slave tests
2
Shared RAM test
3
Slave Reset test
4
Slave Communications test
5
Slave Interrupt test
6
Slave RAM test
7
Master WCS test
8
Slave WCS test
9
Run All Slave tests
10
Run All Slave tests
11
Run All Slave tests
12
Run All Slave tests
13
Run All Slave tests
14
Run All Slave tests
15
Run All Slave tests
MAX
Run All Slave tests
ADJUST Knob
Position
Alternative System Exit
Program Names
MIN
All Registers Dump exit
2
N/A
3
N/A
4
N/A
5
N/A
6
N/A
7
N/A
8
N/A
9
Exit to System without Diagnostics
10
N/A
11
N/A
12
N/A
13
N/A
14
N/A
15
N/A
MAX
N/A
N/A=none available.
An error indication will occur if these positions are used to select a program.
The LXP-5 diagnostic tests are designed to facilitate the "process of elimina¬
tion" technique of troubleshooting, but running a single diagnostic test will not
always sufficiently isolate a hardware failure. Although related tests are
indicated in each test description, it is recommended that the appropriate
section of Chapter 3: Circuit Description be read to maximize the usefulness
of the diagnostic tests. Chapter 3 also contains a reference glossary of signal
and bus abbreviations.
For example: a unit is behaving in an inconsistent manner and Diagnostic
tests are run to isolate possible hardware problems. Master RAM test is run
and passes. Master Address test runs and fails. The diagnostic description of
Master Address test states that the test checks all Master Processor
addressable memory. In Chapter 3: Circuit Description: Memory, it is noted
that the Master Processor can address all of the Slave RAM and the WCS
located in the Lexichip.
Table 2
Slave Diagnostic Test Programs
(User 6)
accessed by ADJUST knob
Table 3
Alternative System Exit
(User 8)
accessed by ADJUST knob
Using the Diagnostic Tests
2-3

Lexicon LXP-5 Specifications

General

Brand	Lexicon
Model	LXP-5
Category	Recording Equipment
Language	English