Agilent DSO81204B 12GHz 4 Chan. Passes Self Tests, Chan2 Trigger Fails Cal-Parts

Manufacturer: Agilent

Model: DSO81204B

Condition: For Parts or Not Working. Comes in non-original packaging.  This scope is in Fair cosmetic condition with some blemishes from prior use.  There are a few small, heavy scratches on the display; the worst is near the left side, by some scratches on the front of the frame, see photo #6 top/right.  There are several corners with scuffs from bumping or rubbing hard.  The back of the top by the power input has a big dent. 

This came to us with a REJECTED sticker from a calibration lab, stating they "Could not calibrate due to being non-operational."  The sticker on the front from Tektronix calibration in 2021 reads "Ch2 fails trigger hysteresis all else cal'd"  The Calibration Status in the scope says "Uncalibrated" and "Failed" on Channel 2 trigger status.
The photos show the exact item(s) the buyer will receive.

Notes: This scope is in PARTIAL working condition.  The CMOS battery is dead, which prevents the unit from loading windows.  A keyboard must be used to get past the "F1 to continue or DEL to enter SETUP" screen, and reset the date if the unit is unplugged.  Once the scope boots, it is able to display signals to 12GHz on each channel, as well as AutoScale on all four channels up to 6GHz.  Using the same cable with the same signal on each channel individually, vertical measurements of waveforms were dramatically different at higher frequency.  At 3GHz the measurements were within about 5% of each other.  Measurements varied by up to 20% at 12GHz!  This unit needs calibration, at least, if not some kind of repair.  Although each channel was able to display signals at 12GHz, no channels are able to autoscale and find a signal at 12GHz, they must be tuned manually there.  The display is clear and bright, and the touch screen works.  Keyboard tests pass.  Self-tests pass.  The LEDs all light up, but they light up surprisingly dim.  No other testing was done.
No manuals, cords/cables, or additional items are included if not listed or shown.

Included:

• (1) Agilent DSO81204B Infiniium high performance digital storage oscilloscope

Specifications:

• Manufacturer: Agilent Technologies
• Model: DSO81204B
• Infiniium high performance digital storage oscilloscope
• Item: DSO81204B-CFG001
• Bandwidth: to 12 GHz
• Sampling: to 40GSa/s
• 4 channels
• XGA color LCD display
• GPIB interface
• Installed options: Ext Ref Clk
• Operating system: Windows XP
• Power requirement: 100-240V 47-63Hz 550W
• Sold AS-IS, please read testing notes!

AS-IS

• No returns - No refunds - No exchanges
• By purchasing this item, you are agreeing to not seek reimbursement should the item not function to the manufacturer's specifications.
• Read the notes carefully to ensure you are buying something you can use
• See complete terms

CDN Systems LLC, DBA Doug Deals, is not an authorized distributor or affiliated with the manufacturer of this product. Original manufacturer's warranty does not apply.