Question about Yamaha CAVIT AP-U70 External Sound System

1 Answer

Volume control of yamaha ap-u70 defect

Hi, the volume control of my yamaha ap-u70 doensn't function correct anymore. it goes up and down when you turn the knob. can this be repeared (by cleaning the inside or replacement by what type?)
thanks, Rob Groot, the Netherlands

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

- Unplug Ap-U70 from power
- Remove side and top plates
- Remove front panel (3 connectors onboard)
- Lift up front pcb from the main plasic front

Then you see the poti with 4 clamps - bend the 4 clamps carefully aside and open the poti - you will see there's alot of oil/fat inside the poti that shouldn't be there - remove it all with some cleaning fluids

Assemble all together and see: Volume control is back

Within the years the oil/fat goes where it shouldn't ...

Greetings from Sven, Germany

Posted on Nov 12, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Volume decreases during use


Very simple. It is not a defective unit. Simply a matter of volume attenuation, hold the "function" and "grove"keys for aprox 5 seconds until a message saying vac off appears. Problem solved. Resets itself eveytime the unit is turned off .
enjoy!!!

Nov 16, 2013 | Sony RDH-GTK1i Hi-Fi Music System

1 Answer

I HAVE A Yamaha PSR 260. About 8 years old. Recently it became defective.: Only the display lights up . No sound. No response to any button. When volume control is turned, I can hear the faint rustle on...


This MAY be due to a key contact or button that is STUCK "on".

Often this will freeze the controller.

Make sure power adapter is the correct one... underpowered or incorrect ones cause trouble.

Mar 20, 2010 | Yamaha Music

1 Answer

Auto accompament failure Yamaha DGX220


I had similar problem out of the box; fixed by setting Function to Style Volume and adjusting upward.

Jan 19, 2009 | Yamaha Full-Size Keyboard

2 Answers

NV-U70 Won't load past INSTALLATION screen


I have had a problem like yours and yes there is software that will get you back in but you should try Windows XP Startup disk or Windows XP CD to use Recovery Console. When either of these two is inserted, restart your computer. When the "Welcome to Setup" screen appears, press R to start the Recovery Console. Once the Recovery Console is open, type your Administrator password (blank by default) and input fixmbr to get MBR fixed.
Note that the fixmbr command may damage your partition table (part of MBR) if a hardware problem exists. You may also create inaccessible partitions by this command. You are highly recommended to backup your data before you use this fixmbr command.Ok if you dont have the disks here is a list of software that you can use. www.Spotmau BootSuite .com I have used this program and its very good I will also give you a few free ones that you might like to try http://www.lazesoft.com/lazesoft-recovery-suite-free.html ............. http://ccm.net/download/download-1221-ultimate-boot-cd ...........
http://download.cnet.com/Windows-Boot-Genius/3000-2094_4-75827488.html...... if these are of no help then google search using" boot disk software" or: boot disk software free"

Aug 07, 2017 | Sony nav-u NV-U70 GPS Receiver

3 Answers

Comcast remote


The volume keys should be working by default, but you may have volume punch through turned on (meaning the remote is sending signals for TV or CABLE volume function no matter what mode you are actually on). To unlock volume control for AUX mode, do the following:
1. Press and release AUX
2. Press and hold SETUP until the remote blinks twice
3. Type 993
4. Press and release VOL-
The remote should blink four times to confirm unlock.

Jul 05, 2008 | Yamaha RX-V1400 Receiver

1 Answer

DirectTV HD-DVR & Yamaha RX-v1500


The types of remotes are as follows

- Single item, or fixed. This unit will only operate the unit it came with
- Multi function, this type can operate the unit it came with and a fixed set of other types. Normally the remote comes with a list of supported device it could work with.
- Learning, the combine both a predefined list with the ability to learn functions by sensing input from the original remote.
- Programable. These are the newest remotes that work like multifunction but the list is maintained by the manufacturer and down loadable from the web.

I would guess that the DVR has a multi function remote.
If you can't find the specific Yamaha in the list, then
try another brand, this could take a while.

Some multi function remotes have an option that allow a semi automatic configuration.
You turn on the item and then using a special key sequence try to turn off the device. once the item turns off you should be able to control it.

If you can't the Yamaha has a learning remote. If you really want an easy solution try looking at a programmable remote. I just got a Logitech, (Harrmony). Life has never been so easy.

Mar 08, 2008 | Yamaha RX-V1500 Receiver

1 Answer

Volume


Hi,
This sounds like a case of a dirty/defective rotary encoder. The volume control used here is not the conventional potentiometer type , but a rotary set of switches that tell the sytem if the knob is being turned left ot right.
Do you think you'd be able to open the unit and spray some contact cleaner into the rotary encoder? It might involve dis-assembling it down to front bezel removal.
jango.

Aug 18, 2007 | RCA RS2044 Shelf System

1 Answer

No USB audio device for AP-U70 in WinXP


It may be that your device is operating in 6 channels mode. You can correct that by pressing the USB button on the AP-U70 until the display says USB_Xch. Then select the right mode (USB_2ch) with the < and > buttons and press the USB button again until is says Xch->2ch. Sometimes you have to disconnect the device from your computer, or you may not be able to select an other mode.

I use the AP-U70 with Vista and even then it works, although the program for making adjustments does not. By telling you this I want to say that the AP-U70 is rather compatible and not one of that always having trouble devices.

Success

Jun 24, 2007 | Yamaha CAVIT AP-U70 External Sound System

3 Answers

Flashing volume control


THE MUTING CIRCUIT IS ON AND IT CANNOT BE DEACTIVATED BY UNPLUGGING UNIT...YOU MUST HAVE THE REMOTE TO DEACTIVATE.

Sep 10, 2006 | Yamaha DSP-A1000 5-Channel Amplifier

2 Answers

Yamaha RX-V793 flashing light on volume control and no volume


Per Yamaha support page: The volume light on my Yamaha AV receiver is flashing, what does this mean ? The "MUTE" function on your remote control has been activated. The reason that you can still hear a very low sound is that the muting circuit within your stereo is not a full mute, but rather a -20dB mute. To deactivate the "MUTE" function, simply press the "MUTE" button on your remote control. (Make sure the volume control is turned down to avoid damage to your system.) If you misplace or lose your remote control, you will have to purchase a new remote control unit, as there is no duplicate function on the front panel of your stereo. Unplugging the stereo will not deactivate the muting circuit, as the microprocessor "remembers" if the muting circuit was active prior to being turned off or unplugged. If you need to purchase a remote control, you may order one directly from our parts office. You may reach them by dialing (714) 522-9888 from 8 am to 3 p.m. Pacific Time, Monday through Friday. If you have any other questions, please contact our customer service department by dialing (800) 292-2982 Monday through Friday from 8:00 a.m. to 4:00 p.m.

Sep 03, 2006 | Yamaha RX-V793

Not finding what you are looking for?
Yamaha CAVIT AP-U70 External Sound System Logo

346 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Computers & Internet Experts

Carlos L. Burgos
Carlos L. Burgos

Level 2 Expert

620 Answers

Marvin
Marvin

Level 3 Expert

82313 Answers

xalint1
xalint1

Level 2 Expert

152 Answers

Are you a Yamaha Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...