Maintenance and Service Guide
Table Of Contents
- Product description
- Components
- Illustrated parts catalog
- Removal and replacement procedures preliminary requirements
- Removal and replacement procedures for Customer Self-Repair parts
- Removal and replacement procedures for authorized service provider parts
- Interpreting system validation diagnostic front panel LEDs and audible codes
- Troubleshooting guide
- Resources
- General troubleshooting steps
- Identify the issue
- Analyze the issue
- Resolve the issue
- Verify solution
- Helpful Hints
- Common issues and possible solutions
- Additional information
- Acronyms
- Blinking lights and boot error codes
- Processor not executing code
- BIOS recovery code unable to find valid BIOS recovery image
- Memory module error
- Graphics Controller Error (No Controller)
- Failure - System Board Error
- Intel Trusted Execution Technology (TXT) Error
- Sure Start unable to find valid BIOS Boot Block image
- Sure Start has identified a problem (Manual Recovery Policy Set)
- POST error messages and user actions
- Routine maintenance for performance improvement
- Common blue screen error messages
- Use Windows Debugging Tool
- Display issue: pixel anomalies
- Cable management
- Connector types
- Computer Setup (BIOS), TPM, and HP Sure Start
- Using HP PC Hardware Diagnostics
- Backing up, restoring, and recovering
- Specifications
- Power cord set requirements
- Statement of memory volatility
- Recycling
- Index

Keyboard
In this section, the rst table provides the main spare part number for the keyboards. The second table
provides the country codes.
Table 5-6 Keyboard descriptions and part numbers
Description Spare part number
Keyboard, no backlight L17970-xx1
Keyboard, backlit L17971-xx1
Table 5-7 Keyboard country codes
For use in country
or region
Spare part
number
For use in country
or region
Spare part
number
For use in country
or region
Spare part
number
Belgium -A41 India -D61 Slovenia -BA1
Brazil -201 Israel -BB1 South Korea -AD1
Bulgaria -261 Italy -061 Spain -071
Canada -DB1 Japan -291 Sweden and Finland -B71
Czech Republic
and Slovakia
-FL1 Latin America -161 Switzerland -BG1
Denmark -081 The Netherlands -B31 Taiwan -AB1
Denmark, Finland, and
Norway
-DH1 Northern Africa -FP1 Thailand -281
France -051 Norway -091 Turkey -141
Germany -041 Portugal -131 Turkey F -541
Greece -151 Romania -271 Ukraine -BD1
Hungary -211 Russia -251 United Kingdom -031
Iceland -DD1 Saudi Arabia -171 United States -001
Before removing the keyboard, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 32).
2. Remove the bottom cover (see Bottom cover on page 32).
3. Disconnect the battery cable from the system board (see Battery on page 44).
Remove the keyboard:
1. Remove the three Phillips M2.0 × 3.0 screws that secure the keyboard to the computer (1).
NOTE: The screws are labeled with a keyboard symbol.
40 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts