Agilent Technologies 8590L Service Manual page 278

Table 5-7 A15 Motherboard Pin Designations (Continued)
Mnemonic
A7
IOB14
IOB15
LBIO
LINE_TRIG
LOG_LIN
52
LPWRON
LTIO
REF_CAL
53
b
SWEEP_RAMP 51
VIDEO_IF
VTO_TUNE
a. 8590 E-Series, 8591C and 8594Q only.
b. Refer to the figure, "A15 Connectors with Additional Associated Circuitry" in this section.
c. Pin numbers indicate assembly where signal or voltage originates.
A8 A9
47
18
5
c
18
c
19
c b
c
11
Chapter 5
Troubleshooting the A15 Motherboard Assembly
Instrument Assemblies
A11 A12
Troubleshooting the IF Section
A13 A14 A16
52
23
c
10
60
31
c
59
c
24
c 1
2
b,c
29
Card
a
Cages
Slots 1,
2, 3, 4
53
24
11
25
28
1
279