HP 8340B Manual page 256

Table F-3.
A60
Self Test LEDs
-
Failure Indications
A60 Processor Self Test LEDs
(Time After Power
On or QNSTR PRESET])
A60
Processor
LED
DS1
DS2
DS3
DS4
DS5
DS6
DS7
DS8
DS9
DS10
DS11
DS12
DS13
DS14
DS15
DS16
First
2
Seconds
SHIFT M4
Test«
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Test Name
PROCESSOR
ROM U37
ROM U36
ROM U35
ROM U34
RAM U39
RAM U38
EEPROM U33
EEPROM U32
MKR BX RAM
TMR LEDS
U4
TMRU4
I/O ADRS
I/O DATA
OFF
OFF
Second
2
Seconds
I/O Address
Bus
Test
ADRO
ADR1
ADR2
ADR3
ADR4
SIOA
SIOB
SIOA
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
Afterward
I/O Data
Bus Test
DBO
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DBS
DB9
DB10
DB11
DB12
DB13
DB14
DB15
F-18
A60
Processor Assembly-Level Troubleshooting
HP 8340B/41B