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Section IV:
Ser¥ice
INTRODUCTION
The HP R85026A detector is not field repairable to the component level. The only replaceable part is the
cable assembly (W1), with all other repairs involving a detector exchange. This section provides cable
troubleshooting and replacement procedures, and the information for ordering a restored detector.
WARNING
Any servicing or repair of this product must be performed by qualified
personnel. Never look directly into the open end of a piece of waveguide
when it is connected to a source of microwave energy. Microwave energy
is extremely harmful to the eye.
QABU
Digital Voltmeter
.HP 3456A
1. Place the detector so that its narrow side is on a flat surface, with the waveguide connector facing
away from you. Refer to Figure 4-1.
WARNING
While removing the covers DO NOT hold the detector in the palm of your
hand. Personal injury can result. READ the entire procedure before
attempting cover removal.
2.
Hold the sides of the detector, near the cable end.
3.
At an angle, carefully insert the tip of a flat-head screwdriver into the seam of the cover assembly until
it slips under the seam. Be sure your hand is not in the path of the screwdriver.
4.
Turn the screwdriver to snap apart the cover assembly.
HP R85026A
4-1
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