P3PC-6661-04EN*P3P C-6661-04E N*

Happy Hacking Keyboard
Professional Classic(US Layout/Non-Printed)
User’s Guide

System Requirements
This product can be used with the following computers or devices.
・ Computers with Windows® (Windows® 7 or later) installed
・ Computers with Mac OS (macOS 10.12 or later) installed

Part Names and Functions
Front

Introduction
Thank you for purchasing Happy Hacking Keyboard Professional Classic (US Layout/Non-Printed). Please read this User's Guide and use this product safely and correctly. Be sure
to read and understand "Safety Precautions" (a separate manual) before using the keyboard.
Mac, Mac OS, and macOS are trademarks of Apple Inc.
Other company names and product names are the registered trademarks or trademarksof the respective companies.
Ⓒ PFU Limited 2019-2022

April 2022

Checking the Items in the Package
Make sure that all items shown below are included in the package:□ Keyboard (x1)
□ USB cable (x1)

LED Indicator

Back

Description

LEDIndicator

Lit in blue: Caps Lock is on.
Turned oﬀ: Caps Lock is oﬀ.

Part NameDescription

USB Type-CConnector

Use the USB cable to connect
this product to a computer.

USB Type-C Connector

Bottom□ Safety Precautions (x1)
□ User's Guide (this manual) (x1)

If items other than those shown above are included in the package, keep them as well.
Treat the items that are included in the package with care. Retain the box and any packaging material as they would be needed to protect the keyboard should it be necessary
to return the item in the event of a warranty claim.
If you ﬁnd that an item is missing or defective, contact the distributor/dealer where youpurchased this product.

DIP Switches
Tilt Stands

Part Name

Description

DIP Switches Used to switch the setting mode.
For details, refer to “Switching the Setting Mode”.
Tilt Stands

Used to adjust the height of the keyboard.
For details, refer to “Adjusting the Height of the Keyboard”.

1

2

Switching the Setting Mode
Switch the setting mode according to the device that you use. By using the DIP switcheson the bottom of the keyboard, you can change the keyboard setting mode. The HHK
mode is set as the factory default.
You can also change some key codes. To change the settings for the DIP switches, usea tool such as a ﬂathead screw driver.

DIP SwitchStatusKeyFunction

SW5OFFAltAlt◇◇ (*2)Alt◇ (*2)◇Alt

ON

SW6ATTENTION

Be sure to disconnect the USB cable before setting any of the DIP switches. Even if you set a DIPswitch while the keyboard is connected via the USB cable, the setting you changed is not applied.

1 Remove the DIP switch cover on the bottom of the keyboard in thedirection of the arrow.
The figure below shows ON/OFF for each DIP switch.

Power Saving Enabled (*3)
Power Saving Disabled (*4)

*1: In Mac mode, SW3 is disabled.
*2: In Win mode, ◇ functions as the [Windows] key.
In Mac mode, ◇ functions as the [Command] key.
*3: When Power Saving Enabled is set, the device in use cannot be resumed fromthe suspended status by pressing a key.
*4: Power Saving Disabled consumes power for the device in use, faster than Power Saving Enabled.

sure you push it until it locks in place.

OFF(Factory Default)

ATTENTION

DIP Switch Cover

2 Switch the setting mode by referring to the tables below.
DIP Switch

OFFON

3 Attach the DIP switch cover back. When attaching the cover, makeONSetting Mode

To return from a suspended status using the keyboard, you need to change the Power Management settings in the properties of the keyboard in Device Manager on theoperating system.

Establishing a Connection with a Computer

SW1SW2OFFOFF

HHK mode

ONOFFWin mode

OFFON

Mac mode

ONON

DIP Switch

StatusKey

Function

SW3 (*1)

OFF

DeleteDeleteONDelete

BS (Back Space)OFF

Left ◇Left ◇ON

Left ◇Fn

SW4Part NameWindows®

Mac OS

1 Connect the USB cable to the USB Type-C connector on this product and a USB port on a computer.

2 When this product is recognized on the device, follow the instruc-3tions displayed in the window to install the driver software.
⇒ A connection with the computer is established.

ATTENTION

Depending on the device that you use, this product may not be recognized when thedevice resumes from a suspended status.
In such a case, disconnect the USB cable and then connect it again.
4

To use the codes that are shown on the front facing side of the keys such as F1 to F12,
Pg Up (Page Up), Caps, and arrows (cursor), hold down Fn and press the relevant key.
Make sure that available codes vary depending on the keyboard mode.
For details, refer to the following table.
Symbol on the Meaning
Side Facing
the Front

Setting Mode
HHKmodeWinmodeMacmode

1 to =

F1 to F12

F1 to F12○○○\InsInsert

○

○

○

`Del

Delete○○○DeleteBS ClearBack Space○○−Clear (keypad)

−−

○

KeyI

PSc/SRq

Print Screen/System Request

○

○

○

O

ScrLk

Scroll Lock

○

○

○

PPus/Brk

Pause/Break○

○

○

K

HomeHome

○

○

○

L

PgUp

Page Up○○○,EndEnd○

○

○.

PgDn

Page Down○○○TabCaps

Caps Lock−○ (*1)○ReturnEnter

Enter (keypad)−○○

N＋＋ (keypad)

−

○

○

M−− (keypad)−○○

H＊＊ (keypad)

−

○

○

J// (keypad)−○○[↑↑○○○/↓↓

○○○;

←←

○

○

○

→→

○

○

○

Vol _Dn

Volume Down

−−

○

A

Symbol on the Meaning
Side Facing
the Front

Setting Mode
HHKmodeWinmodeMacmodeSVol _Up

Volume Up−−

○

D

Mute

Mute−−

○

F

Eject

Eject−−○

Esc

Power

Power−−○ (*2)

Right ◇StopStop

○−−

Key

How to Use the [Fn] Key○ : Supported − : Not supported*1: You need to press Shift at the same time depending on the driver and the operating system.
*2: It is not possible to turn the power on.
Codes in italics are only for Mac OS.

Key Combinations for Switching the Setting Mode
Switching the Setting Mode

Key Combination (Press the keys in the order in which
they are displayed.)

Switching to the Win mode (*1) Fn + Control + W
Switching to the Mac mode

Fn + Control + M*1: When the DIP switches are set for the HHK mode, the setting mode is switched to the HHK mode.

Assigning the Mac OS Keys
The Mac OS keys such as the [Command] key are assigned to keys on the keyboard asshown below.
These assignments are enabled only when the setting mode is Mac mode.

［Option］［Command］［Command］［Option］

The multimedia keys are assigned as shown below. These keys must be pressed together with Fn .
［Volume Up］［Volume Down］ ［Mute］［Eject］
5

Adjusting the Height of the Keyboard

6Specifications

The tilt mechanism is equipped on thebottom of the keyboard, allowing you toadjust the height at two levels. Raise oneof the tilt stands that suits you until it locks
in place. Use the same tilt stands on theright and left sides.

Item

Speciﬁcation

Key
Speciﬁcations

Electrostatic capacitiveswitch
Step sculpture
Key pitch: 19.05 mm

PFU Limited declares that the radio equipment type HHKB is in compliance with FCC.
The full text of the FCC of conformity is available at the following internet address:
https://happyhackingkb.com/r/cert

Ambient 5 to 35°C
Temperature

LowMiddle

HighAmbient
Humidity

20 to 80％ RH(non condensing)

Dimension

294 mm (W) x 110 mm (D) x40 mm (H)WeightApprox. 530 gCableLength1.8 m

Daily Care

Troubleshooting
For troubleshooting tips for this product,refer to the following website:
https://happyhackingkb.com/

If this product gets dirty, wipe it with a drycloth.

ATTENTION

To avoid deterioration and discoloration, never use alcohol or any othervolatile solutions.

Notice・ Copying of the contents of this document in whole or in part is prohibited under thecopyright law.
・ The contents of this document are subject to change without notice.
Regulatory Model78PD-KB401