---
title: Hardware Adjustment Instructions
description: Technician-guided hardware adjustment procedures for APS-400 sensors, including media cartridge, microscope focus, and component replacements.
---

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# Hardware Adjustment Instructions

### The documents listed below contain instructions for customers to make adjustments to the hardware of their APS-400 sensors. They are only meant to be conducted when instructed by a Pollen Sense Technician to do so. Do not carry out any of these instructions if you were not asked to do so by a Pollen Sense Technician.

- [APS-400 Media Cartridge Reseat](https://support.pollensense.com/sensor-support/aps-400-media-cartridge-reseat?hsLang=en-us)
- [APS-400 Media Cartridge Tape Replacement](https://support.pollensense.com/sensor-support/aps-400-media-cartridge-tape-replacement?hsLang=en-us)
- [APS-400 Media Cartridge Manual Advance](https://support.pollensense.com/sensor-support/aps-400-media-cartridge-manual-advance?hsLang=en-us)
- [APS-400 Microscope Focus Recalibration](https://support.pollensense.com/sensor-support/aps-400-microscope-focus-recalibration?hsLang=en-us)
- [APS-400 Tape Drive Assembly Replacement](https://support.pollensense.com/sensor-support/aps-400-tape-drive-assembly-replacement?hsLang=en-us)
- [APS-400 Fan Replacement](https://support.pollensense.com/sensor-support/aps-400-fan-replacement?hsLang=en-us)
- [APS-400 Camera Replacement](https://support.pollensense.com/sensor-support/aps-400-camera-replacement?hsLang=en-us)
- [APS-400 Controller Board Replacement](https://support.pollensense.com/sensor-support/aps-400-controller-board-replacement?hsLang=en-us)

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