Hi,
I have a 8568b spectrum analyzer. The battery is empty, so I have to replace them.
There is a 3 AA (joined) Lithium batteries in a separate case, not as in documentation, on A15 board. No voltages labeled, just the part number:
1420-0235
Could somebody recommend me a replacement? Usually lithium batteries are 3.6V, but I am afraid, my ones are 1.5V, so it gives 4.5V.
May I just try it install a 3.6V one, and lets see, how it works? Does
capacity and max current matter?
Thanks,
Armin
I have a 8568b spectrum analyzer. The battery is empty, so I have to replace them.
There is a 3 AA (joined) Lithium batteries in a separate case, not as in documentation, on A15 board. No voltages labeled, just the part number:
1420-0235
Could somebody recommend me a replacement? Usually lithium batteries are 3.6V, but I am afraid, my ones are 1.5V, so it gives 4.5V.
May I just try it install a 3.6V one, and lets see, how it works? Does
capacity and max current matter?
Thanks,
Armin
First, I assume you know that your instrument is really an 8568B. When you power it on, the screen should say 8568B and give the firmware revision. HP produced 8568As for many 6 years and there are still some out there and these "As" do use the 3 cell battery pack you described.
If you really have an "A" I do not know where you can find replacement NI-CADS. The 3 sources I know of all have the p/n in inactive status.
However, if indeed your instrument tells you it is a 8568B, I believe you have an 8568A that was converted to a "B" model with a retrofit kit. It appears you looked behind the front panel of the 85680B front panel and found the 3 NI-CAD batteries in the plactic case. These batteries should have been removed by the technician that installed the A to B retrofit kit.
So, the Battery message on screen should go away when you replace the 3.6 V, 1.74A-HR Lithium Thionyl battery on the A15 Processor assembly. This battery is probably pink or red, the size of an AA cell, and has axial leads (looks like a big capacitator).
The HP part number for the battery was 1420-0331.
manufacturer is TADIRAN ELECTRONICS INDUSTRIES
Mfg p/n is TL-5104/P
Best regards,
Agilent Customer Support