Keysight (Agilent) E4419A Service Note

E4419A-07A

SERVICE NOTE

SUPERSEDES: E4419A-07

E4419A EPM Series Power Meter

Serial Numbers: GB0000000/GB9999999

US0000000/US9999999

Hardware upgrade information.

Duplicate Service Notes: E4418A-06B

To Be Performed By: Agilent-Qualified Personnel

Parts Required:

P/N Description Quantity

E4418-60021 EPM HW Upgrade kit 1
11683A Range Calibrator 1
11730A Power Sensor Cable 1

Situation:

The E4419A requires new hardware pn E4418-80023 and firmware version (A2.04.00 or
above) to be fitted in order to make it compatible with the E9300 series sensor.The new
E9300 series power sensor requires EPM "A" model dual channel power meters to have firm­ware version A2.04.00 or greater and have U13 (pn E4418-80003) on the A6 Measurement
Assy to be replaced with pn E4418-80023. These changes are required to allow the E9300 se­ries power sensors to operate with the EPM "A" model power meter.

ADMINISTRATIVE INFORMATION

SERVICE NOTE CLASSIFICATION:

MODIFICATION AVAILABLE

ACTION
CATEGORY:

LOCATION
CATEGORY:

AUTHOR:
JW

AGREEABLE TIME

CUSTOMER INSTALLABLE
ON-SITE
SERVICE CENTER

ENTITY:
E600

Continued

DATE: November 1999

PERFORMANCE ENHANCEMENT
SERVICE/RELIABILITY ENHANCEMENT

AVAILABLE UNTIL:
November 2001

ADDITIONAL INFORMATION:
This upgrade should take no more than one hour.

© 1999 AGILENT TECHNOLOGIES
PRINTED IN U.S.A.

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Page 2 Service Note E4419A-07A

Solution / Action:

The new parts allow the user to utilise the new E9300 power sensors. These sensors are capable
of performing the following:

• Wide Dynamic range measurements of all modulated signals.

• Accurate measurement of signals with high peak to average ratios.

• Flat calibration factors give accurate measurement of multi-tone signals.

Installation Procedure
EEPROM Replacement

Replacing the EEPROM requires removal of the power meter cover and the A6 measurement as­semblies from the chassis. With the measurement assemblies removed, the EEPROMs are re­placed. The power meter is then reassembled and the measurement path verified.

Outer Cover Removal

1. Ensure all power and sensor cables are disconnected from the power meter. WARNING:
The power meter contains potentially hazardous voltages.

2. Using a T15 screw driver, loosen the captive screws in the rear bezel and remove the
power meter chassis from the cover as shown in Figure 1.

Figure 1 Outer Cover removal

Measurement Assemblies

1. Access the power meter as shown in Figure 3.

NOTE

Replacement of the EEPROM can be achieved on Channel B of
a dual channel meter without the removal of the A6 measure­ment assembly only after disconnecting and removing the Chan­nelA A6 measurement assembly as described in steps 2 and 3.

2. Disconnect the flex circuit from the measurement assembly.