Sam 4 Power Up (Test 1 Resident Diagnostic) Problem Isolation - Control Data Corporation CDC CC63X Hardware Maintenance Manual

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SAM 4-1
SAM 4 POWER UP (TEST 1 RESIDENT DIAGNOSTIC) PROBLEM ISOLATION
Prerequisite: None
Assumptions: All four power supply LEDs are lit. Raster appeared
as BRIGHTNESS and G2 were turned fully clockwise. TEST switch was
enabled (pulled out) before resident diagnostic test 1 was
initiated.
001 Y N Is the screen blank (no message or cursor)?
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Y
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002
N Did more than one failure message appear with one of
the messages being SERIAL PORT A and/or B FAIL?
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003
Y N Did any of the following messages appear?
004
005
006
007
008
009
010
6A-8
II
• CHARACTER RAM FAIL
• RAM FAIL
• ROM FAIL
• COMM FAIL
• KEYBOARD FAIL
• TIMER FAIL
• KBD CLOCK FAIL
• EXT KBD LOOPBACK FAIL
Did either a NVM ALTERED message or NVM FAIL
message appear? .
N Did BATTERY LOW message appear?
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Y
N
Did GRAPHIC FAIL message appear?
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Y N
Did SERIAL PORT A or
B
FAIL message appear?
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Y N Did SERIAL PORT TEST SWITCH ENABLED appear?
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~
N
If terminal has internal modem installed,
do any of the following messages appear?
INTERNAL MODEM CHECKSUM FAIL, INTERNAL
MODEM UART FAIL, or INTERNAL MODEM
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yl
NLOOPBACK FAIL
Does TEST SWITCH ENABLED appear along
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with RES REV X.X and COPYRIGHT CONTROL
DATA 198X (copyright message only applies
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alarm sound correctly and do two op panel
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LEDs light does (left
=
red, right
=
green)?
222 2 2 2 222 2 2
ABC D E F G H I
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K
62940034 E
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