Fix broken links

Author: daschuer

source/conf.py

@@ -463,6 +463,7 @@
     "https://www.allen-heath.com/support/",
     "https://www.keithmcmillen.com/QuNeo/downloads/",
     "https://www.keithmcmillen.com/products/quneo/",
+    "https://oblique-audio.com/rtl-utility.php",
 ]
 
 # Avoid freezing during linkcheck

source/hardware/controllers/intech_TEK2.rst

@@ -31,7 +31,7 @@ Setting up the controller
 
 To make this mapping work, follow these steps:
 
-1. Download and open the `Grid Editor <https://intech.studio/ae/products/grid-editor/>`__.
+1. Download and open the `Grid Editor <https://intech.studio/software-downloads>`__.
 2. In the Grid Editor, access the Profile Cloud where you can load and save configurations to our Modules.
 3. Search for 'TEK2 DJ setup', then load and store it to your TEK2.
 4. Open up Mixxx, go to :menuselection:`Preferences` --> :menuselection:`Controllers` --> :menuselection:`Intech TEK2` and select the 'Intech TEK2' mapping.

source/hardware/controllers/pioneer_ddj_400.rst

@@ -19,8 +19,8 @@ The Pioneer DDJ-400 is a 2 deck USB controller with an integrated audio interfac
 designed for rekordbox.
 
 - `Manufacturer's Product Page <https://www.pioneerdj.com/en/product/controller/ddj-400/black/overview/>`__
-- `Midi Mappings <https://www.pioneerdj.com/-/media/pioneerdj/software-info/controller/ddj-400/ddj-400_midi_message_list_e1.pdf>`__
-- `Hardware Diagram <https://www.pioneerdj.com/-/media/pioneerdj/software-info/controller/ddj-400/ddj-400_hardwarediagram_rekordboxdj_e1.pdf>`__
+- `Manufacturer's User Manual <https://support.alphatheta.com/de/articles/4404919716761?product=4416577146009>`__
+- `Manufacturer's Firmware Update <https://support.alphatheta.com/de/products/4416577146009?section=25/>`__
 - `Mapping Forum Thread <https://mixxx.discourse.group/t/pioneer-ddj-400/17476>`__
 
 .. versionadded:: 2.3.0

source/hardware/controllers/pioneer_ddj_flx4.rst

@@ -19,10 +19,9 @@ Pioneer DDJ-FLX4
 The Pioneer DDJ-FLX4 is a 2 deck USB controller with an integrated audio interface
 designed for rekordbox and Serato.
 
-- `Manufacturer's Product Page <https://www.pioneerdj.com/en-us/product/controller/ddj-flx4/black/overview/>`__
-- `Manufacturer's User Manual <https://support.pioneerdj.com/hc/en-us/articles/12267724407961-How-to-use-your-Pioneer-DJ-DDJ-FLX4-controller-Instruction-Manual/>`__
-- `Midi Mappings <https://www.pioneerdj.com/-/media/pioneerdj/software-info/controller/ddj-flx4/ddj-flx4_midi_message_list_e1.pdf>`__
-- `Hardware Diagram <https://www.pioneerdj.com/-/media/pioneerdj/software-info/controller/ddj-flx4/ddj-flx4_hardwarediagram_rekordbox_e1.pdf?la=en-us>`__
+- `Manufacturer's Product Page <https://support.alphatheta.com/de/products/12077079532697>`__
+- `Manufacturer's User Manual <https://support.alphatheta.com/de/articles/12267724407961>`__
+- `Hardware Diagram <https://downloads.support.alphatheta.com/software_info/dj-controllers/DDJ-REV1/DDJ-REV1_HardwareDiagram_SeratoDJLite_Pro_E1.pdf>`__
 - `Mapping Forum Thread <https://mixxx.discourse.group/t/pioneer-ddj-flx4/26553>`__
 
 Firmware

source/hardware/controllers/pioneer_ddj_sb.rst

@@ -15,7 +15,7 @@ Drivers
 Windows
 ~~~~~~~
 
-Windows Vista, Windows 7 and Windows 8 are supported. You can download the latest drivers and firmware from http://www.pioneerdj.com/en/support/software/ddj-sb.
+Windows Vista, Windows 7 and Windows 8 are supported. You can download the latest drivers and firmware from https://support.alphatheta.com/products/4416565750809.
 
 .. note::
    If you're using Windows and have problems getting both sound outputs to work properly, please try using a different Sound :term:`API` in the :ref:`preferences <preferences-sound-api>`.

source/hardware/controllers/pioneer_ddj_sb2.rst

@@ -5,7 +5,8 @@ Pioneer DDJ-SB2
 
 The Pioneer DDJ-SB2 is an all-in-one USB :term:`MIDI` controller with a built in sound card. It has controls for 2 decks that can be toggled between decks to play with 4 decks.
 
--  `Manufacturer’s product page <https://www.pioneerdj.com/en/product/controller/archive/ddj-sb2/black/overview/>`__
+-  `Manufacturer’s product page <https://www.pioneerdj.com/de/product/dj-controllers/ddj-sb2/>`__
+-  `Manufacturer's User Manual <https://support.alphatheta.com/de/articles/23017624264857?product=4416570350105>`__
 -  `Forum thread <https://mixxx.discourse.group/t/pinoneer-ddj-sb2-midi-mapping/15373/26>`__
 
 .. versionadded:: 2.0
@@ -22,7 +23,7 @@ be noise added to the main RCA outputs.
 Windows
 ~~~~~~~
 
-Pioneer has a `driver <https://www.pioneerdj.com/en/support/software/ddj-sb2/>`__ for Windows versions 7 and newer. Select the ASIO sound :term:`API` in Mixxx’s Sound Hardware Preferences.
+Pioneer has a `driver <https://support.alphatheta.com/de/articles/23017814733465?product=4416570350105>`__ for Windows versions 7 and newer. Select the ASIO sound :term:`API` in Mixxx’s Sound Hardware Preferences.
 
 Mac OS X & Linux
 ~~~~~~~~~~~~~~~~

source/hardware/controllers/pioneer_ddj_sb3.rst

@@ -16,8 +16,8 @@ Pioneer DDJ-SB3
 The Pioneer DDJ-SB3 is a 4 deck USB DJ controller.
 
 -  `Manufacturer's Product Page <https://www.pioneerdj.com/product/controller/ddj-sb3/black/overview/>`__
--  `Manufacturer's User Manual <https://support.pioneerdj.com/hc/en-us/articles/4404925658009-How-to-use-the-Pioneer-DJ-DDJ-SB3-Instruction-Manual/>`__
--  `Manufacturer's Firmware Update <https://www.pioneerdj.com/product/controller/ddj-sb3/black/support/>`__
+-  `Manufacturer's User Manual <https://support.alphatheta.com/de/articles/4404925658009?product=4416577034009/>`__
+-  `Manufacturer's Firmware Update <https://support.alphatheta.com/de/products/4416577034009?section=25/>`__
 -  `Mixxx User Forum <https://mixxx.discourse.group/t/pioneer-ddj-sb3-mapping-v1-0-now-available/22186>`__