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Template:Repair Guide/Example: Difference between revisions

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The device arrived with the numeric keys on the internal keyboard non‐functional, despite a complete keyboard replacement. Visible moisture and sulfation were detected near the keyboard’s SPI controller (U4801).
The device arrived with the numeric keys on the internal keyboard non‐functional, despite a complete keyboard replacement. Visible moisture and sulfation were detected near the keyboard’s SPI controller (U4801).


== Symptoms ==
820-3662 NO NUMERIC KEYS/CAPS LOCK INVERTED/INPUT DELAY - TOUCHPAD ISSUES
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Detail all measurable or observable symptoms in this section.  
The device arrived with the numeric keys on the internal keyboard non‐functional, despite a complete keyboard replacement. Visible moisture and sulfation were detected near the keyboard’s SPI controller (U4801).
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* Symptom 1 (Figure 1)
* Symptom 2


== Solution ==
== Solution ==

Revision as of 23:44, 2 August 2025

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Repair Guide/Example
Device
Affects part(s)
Needs equipment
Difficulty
Type


    1. Initial Problem Description

The device arrived with the numeric keys on the internal keyboard non‐functional, despite a complete keyboard replacement. Visible moisture and sulfation were detected near the keyboard’s SPI controller (U4801).

820-3662 NO NUMERIC KEYS/CAPS LOCK INVERTED/INPUT DELAY - TOUCHPAD ISSUES

The device arrived with the numeric keys on the internal keyboard non‐functional, despite a complete keyboard replacement. Visible moisture and sulfation were detected near the keyboard’s SPI controller (U4801).

Solution

Diagnostic Steps

Repair Steps