M
O
D
I
F
I
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A
T
I
O
N
R
E
C
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M
M
E
N
D
E
D
G
G
G
E
E
–
D
–
D
–
O
R
D
E
S
I
G
N
D
E
F
E
C
T
O
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D
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I
G
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F
D
E
F
E
E
C
C
T
T
S
S
S
M
M
C
C
C
O
O
O
O
O
R
R
R
D
D
R
R
R
I
F
I
C
A
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O
N
R
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C
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M
M
E
N
U
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R
R
N
I
I
I
N
N
N
D
D
I
F
I
C
A
T
I
O
N
R
E
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E4401B-10
S E R V I C E N O T E
Supersedes:
NONE
E4401B 9 kHz to 1.5 GHz ESA Spectrum Analyzer
Serial Numbers: US40240618 / US41061631
Replace Micron DRAM SIMMS from the A4, CPU assembly that can cause
intermittent lock-up issues on instruments having option B72 only.
To Be Performed By: Agilent-Qualified Personnel or Customer
Parts Required:
P/N Description Qty.
E4401-60289 DRAM SIMM 1
ADMINISTRATIVE INFORMATION
SERVICE NOTE CLASSIFICA TI ON:
MODIFIC ATION RECOMMENDED
ACTION X IMMEDIATELY STANDARDS:
CATEGORY: [[]] ON SPECIFIED FAILURE LABOR: 0.5 Hours
LOCATION X CUSTOMER INSTALLABLE SERVICE [[]] RETURN USED [[]] RETURN
CATEGORY: [[]] ON-SITE INVENTORY: X SCRAP PARTS: X SCRAP
[[]] SERVICE CENTER [[]] SEE TEXT [[]] SEE TEXT
AVAILABILITY: PRODUCT’S SUPPORT LIFE AGILENT RESPONSIBLE UNTIL: End of GMS
[[]] AGREEABLE TIME
AUTHOR: bd PRODUCT LINE: 12
ADDITIONAL INFORMATION:
© AGILENT TECHNOLOGIES, INC. 2002
PRINTED IN U.S.A.
February 15, 2002
Page 1 of 2
Page 2 of 2 E4401B-10
Situation:
DRAM SIMMS using Micron parts can cause the instrument to lock-up and possibly white screen.
This problem will only occur on instruments within the specified serial number range that have option
B72, expanded memory. Micron has been removed from Agilent Technologies approved supplier list.
Solution/Action:
Remove the A4, CPU assembly from the instrument and pull out the DRAM SIMM pictured below.
Additional information about removing the CPU assembly from the instrument can be found in the
ESA or EMC Service Guide under chapter heading, “Replacing Assemblies”. Inspect for Micron
parts. If there is an “M” with a circle indicating the Micron parts, the SIMM should be replaced. All
other component manufacturers are fine.
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