Service manual

Backdating 101
Index
A
averaging
constant current measurements, 19
B
backdating, 99
block diagram, 64
C
cabling diagram, 75
CAL DENIED, 43
calibration
inhibit, 43
jumper, 43
post-repair, 43
constant current load effect test, 17
constant current source effect test, 18
constant voltage load effect test, 13
constant voltage noise test, 14
constant voltage source effect test, 13
current programming and readback accuracy test, 17
D
disassembly
A10 assembly, 54
component locations, 52
fan transformer, 58
front frame, 53
line choke, 57
procedures, 48
tools required, 49
E
E1 FP RAM, 27
E10 SEC 5 V, 27
E11 TEMP, 27
E12 DACS, 27
E2 FP ROM, 27
E3 EE CHKSM, 27
E4 PRI XRAM, 27
E5 PRI IRAM, 27
E6 PRI ROM, 27
E7 GPIB, 27
E8 SEC RAM, 27
E9 SEC ROM, 27
EE WRITE ERR, 27
EEPROM initialization, 44
electrostatic discharge
precautions, 8
error messages
E1 FP RAM, 27
E10 SEC 5V, 27
E11 TEMP, 27
E12 DACS, 27
E2 FP ROM, 27
E3 EE CHKSM, 27
E4 PRI XRAM, 27
E5 PRI IRAM, 27
E6 PRI ROM, 27
E7 GPIB, 27
E8 SEC RAM, 27
E9 SEC ROM, 27
EE WRITE ERR, 27
SBUF FULL, 27
SECONDARY DN, 27
SERIAL DOWN, 27
SERIAL TIMOUT, 27
SUBF OVERRUN, 27
UART FRAMING, 27
UART OVERRUN, 27
UART PARITY, 27
F
firmware revision, 8
firmware revisions, 42
flowchart
troubleshooting, 26
I
identification, 7
inhibit calibration, 43
initialization, 44
program, 45
transferring CAL constants, 44
J
jumper
DIG I/O, 42
FACTORY PRESET CAL, 42
FLT/INH, 42
INHIBIT CAL, 42
NORM, 42
RELAY LINK, 42
SA Mode, 42
M
manual
revision, 7
manual backdating, 99
mnemonics, 70
O
operation
ac calibration, 61
control board, 60