REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Showing posts with label MIXER. Show all posts
Showing posts with label MIXER. Show all posts

Saturday, 29 February 2020

MACKIE DL806 - DL1608 WIRELESS DIGITAL MIXER ASSEMBLY SCHEMATIC + WIRING SCHEMATIC DIAGRAM

General Digital
Sample Rate: 48 kHz
A/D/A Bit Depth: 24-bit
System Latency: 1.5 ms

Frequency Response
All inputs to all outputs: ±0, –1 dB, 20 Hz to 20 kHz

Mic input to Main Output (A–weighted)
Channel and main faders at unity: –79 dBu
Faders down: –90 dBu

Dynamic Range (One channel and main fader at unity, A–weighted): 109 dB

CMRR: >70 dB @1 kHz (60 dB gain)

Analog Inputs 1–16

1-12: XLR Balanced

13-16: Combo XLR / TRS Balanced

Supported Devices
iOS Version Requirement: iOS 5.1 or higher [Master Fader] iOS 6 or higher [My Fader]

DL Series mixer with Lightning Connector

Wired:  iPad(4th generation), iPad mini (With iPad mini tray accessory)

Wireless:  All iPad models, iPhone (iPhone 4, iPhone 4S and iPhone5), iPod touch (4th and 5th generation)

DL Series mixer with 30-pin Connector

Wired:  Original iPad, iPad 2, iPad (3rd generation)

Wireless:  All iPad models.

Control Application: Mackie Master Fader App, Mackie My Fader App

External Supply Power Requirements: 100-240 VAC, 50-60 Hz, Universal Supply, Output Voltage:  12 VDC, Current:  4A, DC Connector:  5.5 mm x 2.5 mm barrel with locking ring

Line Cord:  User-replaceable IEC. Power Consumption:  48 W max. Weight: 6.9 lb / 3.1 kg

Service Kits
• 30-PIN CONNECTOR WITH TRAY SERVICE KIT (Includes instructions) PN#2039264
• 30-PIN DOCK SERVICE KIT (Includes instructions) PN#2042301
• LIGHTNING CONNECTOR WITH TRAY SERVICE KIT (Includes instructions) PN#2039276
• LIGHTNING DOCK SERVICE KIT (Includes instructions) PN#2042300
• DL iPAD MINI TRAY KIT (Includes instructions) PN#2042302

Block diagram



Assembly and quick parts


Wiring diagram


Bottom side and top side of the PWB


Below is an annotated picture of DL1608 and DL806 showing how the channels are named in the hardware (since variations between models are by board no-stuffs, and the same physical channels are not labeled the same between models for the user). So the schematics, and connector pin-out documentation, use these labels as appropriate. H/W inputs A5-A8 are combo jacks. All others are regular XLR

Monday, 25 March 2019

BOSE ROLAND BR-1600CD - DIGITAL RECORDING STUDIO - ERROR CODES - CAUES - SOLUTIONS

BOSE ROLAND BR-1600CD - DIGITAL RECORDING STUDIO - ERROR CODES - CAUES - SOLUTIONS



ERROR CODES
Blank Disc.
  • Cause: Disc in the CD-R/RW drive contains no data.
  • Action: Load a CD-R/RW disc that has data written on it.
Cannot Select Same Track
  • Cause: You attempted to select the same track more than once during
  • Track Edit, WAV/AIFF Export, or another procedure.
  • Action: Select a different track.
CD Full
  • Cause: The CD-R/RW disc is full, and no more data can be written to it.  Additionally, when creating an audio CD, the total time of the tracks exceeds the capacity of the CD-R/RW disc.
  • Action: Reduce the amount of data or number of songs to be written, then try again.
CD Read Error
  • Cause: An error occurred while reading data from the CD-R/RW disc.
  • Action: This may be due to a low-quality or dated disc. Try using a new
  • CD-R/RW disc.
CD Write Error
  • Cause: An error occurred while writing data to the CD-R/RW disc.
  • Action: This may be due to a low-quality or dated disc. Try using a new
  • CD-R/RW disc.
Clock Error
  • Cause: Reception of the MIDI timing clock was interrupted during recording of the Sync Track.
  • Action: Make sure that the MIDI cable is connected correctly and check whether the external MIDI device was turned off during the recording process.
Data Too Large
  • Cause 1: You attempted to import an SMF exceeding 250 KB.
  • Action 1: Prepare the SMF to be loaded so that it is no more than 250 KB.
  • Cause 2: You attempted to create a loop phrase using waveform data thirty minutes or longer.
  • Action 2: Use waveform data less than thirty minutes long.
Data Too Short
  • Cause 1: You attempted to load a waveform file lasting 0.5 seconds or less.
  • Action 1: Prepare the waveform file so that it is longer than 0.5 seconds.
  • Cause 2: You attempted to write an audio CD with a track that is less than four seconds in length.
  • Action 2: Prepare tracks being written to audio CDs so that they are at least four seconds long.
  • Cause 3: You attempted to create a loop phrase using waveform data less than 0.5 seconds in length.
  • Action 3: Use waveform data that is at least 0.5 seconds long.
Data Type Not Supported
  • Cause: You are attempting to load a file or disc in an incompatible format.
  • Action: Use a file in a compatible format.
Digital In Unlock.
  • Cause: Signal lock with the digital input source was interrupted.
  • Action: Make sure that the digital-audio input cable is connected correctly and check whether the external digital-audio device has been turned off.
Medium Error
  • Cause: There is a problem with the CD-R/RW disc or hard disk.  Alternatively, the disc on the CD-R/RW drive is unreadable.
  • Action 1: Confirm that the correct type of disc is placed in the CD-R/RW drive.
  • Action 2: Use a new CD-R/RW disc.
  • Action 3: Use the following procedure to initialize the hard disk.
MIDI Error
  • Cause 1: Active Sensing is on, and it has detected that no MIDI message transmissions have taken place for more than approximately 400 ms.
  • Action 1: Check the external MIDI device connected to MIDI IN to make sure it is turned on, and that the settings are correct. Also, confirm that the MIDI cable has not been disconnected.
  • Cause 2: Processing has been overloaded due to high volumes of MIDI messages received from the external MIDI device.
  • Action 2: Reduce the amount of MIDI messages transmitted by the external MIDI device.
No Data
  • Cause 1: You attempted to modify marker or scene data when none existed.
  • Cause 2: You attempted to create an audio CD with no data in the tracks or songs, or you attempted to export a WAV or AIFF file.
  • Action: First create data.
No File
  • Cause 1: During a USB import operation, no file was copied from the PC to the USB folder.
  • Action 1: Copy the file from the PC to the USB folder.
  • Cause 2: The copied file is not of WAV or AIFF format.
  • Action 2: Copy a file of WAV or AIFF format.
Not Blank Disc
  • Cause: The CD-R/RW disc already has data written to it.
  • Action: Place a CD-R/RW disc with no data written to it (a blank disc) in the CD-R/RW drive.If using a CD-RW disc, you can erase the data on the disc in order to create a blank disc.
Not CD-RW Disc
  • Cause: The disc is not a CD-R/RW disc, so the data cannot be erased.
  • Action: Use a CD-R/RW disc.
Pattern Memory Full
  • Cause: The total number of sounds in the drum and bass patterns has exceeded 10,000.
  • Action: Delete unneeded patterns.
Protected Song
  • Cause: Since Song Protect is ON, the operation cannot be executed.
  • Action: Turn Song Protect Off.
Select Track
  • Cause: You attempted to execute a track editing operation without specifying the track to which the operation will apply.
  • Action: Specify the track, and then execute the editing operation.
Select Data
  • Cause: The data or files upon which the operation is to be performed have not yet been specified.
  • Action: Select data or files and repeat the operation
Disc Not Ready
  • Cause: There is no CD-R/RW disc in the drive.
  • Action: Place a CD-R/RW disc in the drive.
Drive Busy
  • Cause: The data on the hard disk has become fragmented, causing delays in reading and writing data.
  • Action 1: Reduce the number of tracks that are played back simultaneously.  Use track bouncing (or other means) to combine tracks, or erase or cut data from tracks which you do not need to play back, and then try the playback again.
  • Action 2: Reduce the number of tracks that are being recorded simultaneously.
  • Action 3: If using the drum and bass patterns or loop phrases, press the Track button, causing the button's indicator to go out.
  • #  In cases of unfavorable disk access conditions, such as when track editing, punch-in recording, etc. is used to connect phrases (musical data) of several seconds.
Event Memory Full
  • Cause: The BR-1600CD has used up all the events that can be handled by one song.
  • Action: Perform the Song Optimize operation.
Finalized Disc
  • Cause: Data has already been written to the CD-R/RW disc, and the data has been finalized.
  • Action: Place a CD-R/RW disc that has not been finalized in the drive.
HDD Damaged.  Can't Access HDD.
  • Cause: Data could not be read from or written to the hard disk.
  • Action: There is a possibility that the hard disk has been damaged. Shut down the BR-1600CD as instructed and send it for repair.
HDD Full
  • Cause: There is insufficient free space on the hard disk.
  • Action 1: Erase unneeded data.
  • Action 2: Perform the Song Optimize operation.
HDD Read Error
  • Cause: An error occurred while reading data from the hard disk.
  • Action: The hard disk must be initialized.
HDD Write Error
  • Cause: An error occurred while writing data to the hard disk.
  • Action: The hard disk must be initialized. Also, the song data you had been attempting to save will be lost.
Insert Disc 
  • Cause: During recovery of backup data located on multiple CD-R/RW discs, the disc of the requested number was not placed in the drive.
  • Action: Place the disc with the requested number in the drive.
Lack of Events
  • Cause: It is not possible to execute Undo or Redo if fewer than 200 events remain.
  • Action: Perform the Song Optimize operation.
Marker Memory Full
  • Cause: The BR-1600CD has used up all the marker memory (100 markers) that can be handled by one song.
  • Action: Delete unneeded markers.
Set Location
  • Cause: No target data or file has been selected yet.
  • Action: Select the data before continuing.
Stop Recorder
  • Cause: The operation you attempted cannot be done while the recorder is running (playing or recording).
  • Action: Press [STOP] to stop playback or recording.
Sync Track Full
  • Cause: All of the remaining memory was used up during the Sync Track recording process.
  • Action: No further recording will be possible. Reduce the recording time and repeat the recording process.
Too Many Songs
  • Cause 1: The song creation operation would result in the number of songs exceeding 999.
  • Action 1: Erase unneeded songs and repeat the song creation process.
  • Cause 2: The import operation would result in the number of songs exceeding 999.
  • Action 2: Erase unneeded songs and repeat the song import operation.
Too Long Name
  • Cause: The names of files and folders on the current CD-R/RW disc are too long.
  • Action: Add up the lengths of all file names and folder names, and then modify these names to reduce the total number of characters to 236 or less.
Too Many Tracks
  • Cause: You attempted to write more than 99 tracks to the audio CD being created.
  • Action: Reduce the number of tracks you are writing to 99 or fewer tracks.
Wrong Disc
  • Cause: A disc other than the required CD-R/RW disc is placed in the drive.
  • Action: Place a CD-R/RW disc in the drive.

BOSE ROLAND BR-1600CD - DIGITAL RECORDING STUDIO - RESTORING FACTORY DEFAULTS

BOSE ROLAND BR-1600CD - DIGITAL RECORDING STUDIO - RESTORING FACTORY DEFAULTS





TO INITIALIZE FACTORY SETTINGS
Initialize function allows you to return all of the following BR-1600CD parameters to their original settings.

Global Parameters
  1. Reference Pitch in Tuner parameters
  2. System parameters
  3. Sync parameters
  4. MIDI parameters
  5. Marker parameters
  6. Scene parameters
  7. Scrub and Preview parameters
Mixer Parameters
  1. Track Compressor, EQ, Pan
  2. Loop Effects
  3. Input Select
  4. Level Calibration
  5. Recording Mode.
Effect Patch Data
  1. User patches from all insert effect banks
  2. Vocal Tool Box user patches
  3. Mastering Tool Kit user patches
  4. Speaker Modeling user patches.
  • Press [UTILITY].  The Utility screen will appear.
  • Move the cursor to the INITIALIZE icon and press [ENTER/YES].  Icons representing the various things that can be initialized will appear.



GLOBAL icon
When this icon is selected
  • Reference Pitch in Tuner parameters
  • System parameters
  • Sync parameters
  • MIDI parameters
  • Marker parameters
  • Scene parameters
  • Scrub and Preview parameters will be initialized and returned to the values they had at the time of purchase.
MIXER icon
When this icon is selected,
  • Track Compressor, EQ, Pan
  • Loop Effects
  • Input Select
  • Level Calibration
  • Recording Mode will be returned to the values they normally have immediately after Song New is performed.
EFFECTS icon
When this icon is selected,
  • User patches from all insert effect banks
  • Vocal Tool Box user patches
  • Mastering Tool Kit user patches
  • Speaker modeling user patches will be initialized and returned to their values at the time of purchase (i.e., the values for preset patches).
ALL icon
When this icon is selected, all global parameters, effect patches, and mixer parameters will be initialized.
In addition, all data for song markers, Tempo Maps, Sync Tracks, scenes, and the like will be cleared. The display contrast will also be returned to the factory default contrast setting.
  1. Move the cursor to the icon for the parameters to be initialized and press [ENTER/YES].
  2. Alternatively, you can push the FUNCTION button below the relevant icon.
  3. The message “Initialize *** OK?” will appear. 
  4. Move the cursor to the icon for the parameters to be initialized and press [ENTER/YES].
  5. Alternatively, you can push the FUNCTION button below the relevant icon.
  6. The message “Initialize *** OK?” will appear.
  7. Press [ENTER/YES] once again.
  8. The BR-1600CD will start the initialization process. When this process has finished, the message “Complete!” will appear and you’ll automatically be returned to the top screen.

Friday, 15 March 2019

MAX YORKVILLE - STEREO MIXING CONTROL - 275W & 800W - AMPLIFIER SCHEMATIC [CIRCUIT DIAGRAM]

MAX Yorkville - Stereo Mixing Control - 275W & 800W - AMPLIFIER SCHEMATIC [Circuit Diagram]


275 WATTS AMP

CLICK ON THE SCHEMATICS TO ZOOM IN
800 WATTS AMP

Tuesday, 12 March 2019

DENON DN-X300 DJ MIXER DISASSEMBLING AND CIRCUIT DIAGRAM

DENON DN-X300 DJ MIXER DISASSEMBLING AND CIRCUIT DIAGRAM


 DJ MIXER


DISASSEMBLING AND CIRCUIT DIAGRAM  


DISASSEMBLE PROCEDURE 
1. Top Panel
(1) Pull out the Knobs from the Top Panel.
(2) Remove the 6 screws attaching the Top Panel.
(3) Pull up the Front Panel.

2. Crossfader Unit
(1) Remove the 2 screws attaching the Crossfader Unit.
(2) Pull up the Crossfader Unit and disconnect the connector.

3. Channel Fader Unit
(1) Remove the 3 screws attaching the Channel Fader Unit.
(2) Pull up the Channel Fader Unit and disconnect the connector.

4. Input Selector Unit
(1) Remove the 2 screws attaching the Input Selector Unit.
(2) Pull up the Input Selector Unit and disconnect the connector.

5. Top Panel Unit
(1) Remove the 6 screws from the both-sides side.
(2) Remove the 2 screws from the rear side.
(3) Remove the 5 screws from the front side.
(4) Remove the 4 screws from the bottom side.
(5) Pull up the front side of the Top Unit.
(6) Disconnect the connectors.

CIRCUIT DIAGRAM 
MIXER UNIT AND PHONE UNIT 
CPU UNIT - FADER START UNIT - REVERSE UNIT - CH VR UNIT

OUTPUT UNIT -  JACK UNIT -  TRANS UNIT
CLICK ON THE IMAGES TO ZOOM IN

DENON DN-X1500 - DN-X1500S DISASSEMBLING AND SERVICE MODE

DENON DN-X1500 - DN-X1500S DISASSEMBLING AND SERVICE MODE


DENON DN-X1500 - DN-X1500S DJ MIXER DISASSEMBLING SERVICE MODE AND POWER SUPPLY CIRCUIT  


DISASSEMBLING  (Follow the procedure below in reverse order when reassembling.) 1. Top Panel Unit (1) Remove 9 side screws and pull up the Top Panel Unit. (2) Disconnect FFC cable and Connector. (3) Detach Top Panel Unit Note : Do not pull out aslant to prevent FFC cable damage. Do not fail to pull AC cord from wall outlet before disconnect the FFC cable. If AC cord is remained plugged into wall outlet, power is kept supplied in the unit, which may cause danger.

2. Cross Fader Unit
(1) Remove 2 top screws and pull up Cross Fader Unit.
(2) Disconnect Connector.

3. CH Fader Unit
(1) Remove 4 knobs.
(2) Remove 4 screws and pull up CH Fader Panel.
(3) Remove 2 screws for each CH.
(4) Disconnect Connector.
(5) Detach CH Fader Unit.

4. Top Panel
(1) Pull out the knobs.
(2) Remove 8 screws.
(3) Detach Top Panel.

ADJUSTING THE MOVEMENT OF THE CROSS FADER CONTROL
(1) Move the Cross Fader control all the way to the end in the direction of the arrow.
(2) Turn Cross Fader screw A gently using the adjustment screwdriver to adjust the movement of the control. When turned clockwise, the movement of the control becomes heavier. When turned counterclockwise, the movement of the control becomes lighter.
(3) After adjusting, mount the Cross Fader Unit onto the main unit, being sure to place the cable properly. Be careful not to let the cable get stuck in the main unit.
Note : The Cross Fader has a precision structure. Do not tighten or loosen it excessively. Doing so could cause malfunction or adversely affect performance.

SERVICE MODE 
Power on while pressing MIC POST ON/OFF button and EFFECT LOOP ON/OFF button.
For canceling the service mode, turn power off/on
POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN