Index
E8257D/67D, E8663D PSG Signal Generators Service Guide 3
inverter, 22
G
gains, device, 105
getting started, 2
H
hardware, 35
harmonic spurs,
troubleshooting
, 78
harmonics, specifications, 78
highband detector bias board,
replacement
, 70
I
I/O interface, description, 83
I/Q MUX, replacement, 32, 34
I/Q signals, 102
instrument cover
replacement
, 4, 6
internal hard drive,
replacement
, 99
inverter, replacement, 22
K
keyboard, replacement, 11
L
line module, replacement, 50
lists
hardware
, 35
replaceable assemblies, 1
lithium battery disposal, 2
lithium battery,
replacement
, 42
losses, device, 105
lowband coupler/detector,
replacement
, 52
lowband switch filter,
replacement
, 108, 118, 120
M
microcircuit interface deck
(MID), replacement
, 72
mixing products, 102
modulator filter,
replacement
, 82
motherboard
connector locations
E8257D
, 21, 22
LED locations
E8257D
, 25, 26
test points, 14
motherboard, replacement, 84,
86
N
non-harmonic spurs,
troubleshooting
, 81
O
option 015, 102
Option UNR/UNX,
troubleshooting
, 82
options, descriptions, 1
oscillator
10 MHz crystal
, 88
YIG, 78
output, replacement, 23
overcurrent, 27
overvoltage, 27
P
performance test failures,
troubleshooting
, 74
performance tests, required
after repair
, 1
phase noise,
troubleshooting
, 82
post-repair procedures, 1
power
maximum leveled
, 68, 69
RF levels, troubleshooting, 75
power supply
dc voltage specifications
, 23
motherboard LED locations
E8257D
, 25, 26
troubleshooting, 14
power supply, replacement, 44
power switch, replacement, 19
PSG, overall block
description
, 83
PSG, overall block diagram
E8257D
, 89
E8267D, 91
PSG, reference/synthesis loop
block diagram
, 97
PSG, reference/synthesis loop
description
, 93
PSG, RF path block diagram
E8257D
, 107, 109
E8267D, 115, 117, 119
PSG, RF path description, 99
PSG,Option UNY block diagram
E8257D
, 113
PSG,RF path block diagram
E8257D,low band RF
path
, 111
pulse modulation,
troubleshooting
, 77
pulse modulator board,
replacement
, 30
pulse/analog modulation
generator, replacement
, 28
Q
quadraplier, replacement, 104
R
ramp sweep, description, 93
rear panel, replacement, 94, 96
rear-panel interface,
replacement
, 48
reference, replacement, 23
reference/synthesis loop,
description
, 93
repair
adjustments required
, 1
performance tests required, 1
repair, troubleshooting, 1
replaceable parts
assemblies
, 1
hard ware, 35
ordering information, 1
RF path
description
, 99
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