Question about Dual 2-Channel Bridgeable MOSFET Amplifier (XPA4100) Car Audio Amplifier

1 Answer

How to find the correct rotary encoder from my previous post.

Thank you very much for your help. I would have never figured that out haha. Only thing is, how can I find the exact one I need without having to take my broken one out and look at it?

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Its not really a POT (Potentiometer) but a rotary knob, you can try radio shack or digi-key. if you can't find one, you can probably fix the one you have, you just have to open it up, clean it and re-adjsut the inside of it, be carefull becaus there are small parts that can easily brake.....

Posted on Jan 07, 2008

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Posted on Jan 02, 2017

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1 Answer

2488 jog wheel not behaving correctly, jumping around.


These units have what is known as a Rotary Encoder. They're just like the volume controls on audio equipment, now a days. You can turn it all the way, and it never stops. The pulses from these encoders, are routed to the microprocessor(computer inside your unit). The encoder may be bad, or the microprocessor itself. If you'd like to enquire about repairing your unit, please contact me directly from my website at audioserviceclinic.com. Thank you.

Oct 20, 2014 | Tascam 2488 Portastudio Multitrack...

1 Answer

I can set the hour but I can't figure out the minute settings on the clock.


Setting Time

1 In the Clock priority mode, press and hold

TITLE/ for at least 2 seconds while the time is

displayed.

The time indication will blink.

2 Turn the Rotary encoder (CDE-9846 only) or

press 4 and 3 (CDE-9842 only) to adjust the

hours while the time indication is blinking.

3 When the hour has been adjusted, press the

Rotary encoder (CDE-9846 only) or press MODE

(CDE-9842 only).

4 Turn the Rotary encoder (CDE-9846 only) or

press 4 and 3 (CDE-9842 only) to adjust the

minutes while the time indication is blinking.

The time is automatically set 5 seconds after the minute

adjustment. The time can also be manually set by

pressing the Rotary encoder (CDE-9846 only) or press

MODE (CDE-9842 only).

• To synchronize the clock to another clock/watch or radio time

announcement, press and hold the Rotary encoder (CDE-9846

only) or press and hold MODE (CDE-9842 only) for at least 2

seconds after setting the "hour." Minutes will reset to 00. If the

display shows over "30" minutes when you do this, the time will
advance one hour.

Apr 12, 2011 | Alpine CDE-9846 CD/MP3 Car Stereo

2 Answers

Does anyone know the part number for the volume control rotary encoder for an Aiwa AV-DV70U audio/video receiver? There are no markings on the component but the pc board is marked SW101. A schematic...


The EC16B24304 number above is a discontinued Alps part. I found an equivalent encoder from Taiwan Alpha available on Mouser.com, part number RE160F-40E3-20A-24P. It has the same footprint, shaft length and keying. It fits perfectly. It has a lower rotational force than the Alps encoder and 24 detents per rotation instead of a smooth feel, but it is perfectly acceptable. I just made this repair on my Aiwa CX-NA222 stereo, and I've got my volume control back!

Feb 20, 2011 | Aiwa AV-DV70 5.1 Channels Receiver

1 Answer

How do I set the clock on my Alpine stereo, Model CDM 9801?


Hi there,

From Page 6 of the CDM-9801 manual from Alpine's site:

http://vault.alpine-usa.com/products/documents/OM%20CDM-9801.PDF

------------------------------------------------
1. In the Clock priority mode, press and hold the
DISP button for at least 3 seconds while the
time is displayed. The time indication will blink

2. Turn the Rotary encoder to adjust the hours
while the time indication is blinking.

3. When the hour has been adjusted, press the
Rotary encoder.

4. Turn the Rotary encoder to adjust the minutes
while the time indication is blinking. The time is
automatically set 5 seconds after the minute
adjustment. The time can also be manually set by
pressing the Rotary encoder.

--------------------------

I hope that helps.

May 11, 2010 | Alpine CDM-9801 CD Player

1 Answer

I cannot figure out how to change the clock! Help please.


From the manual...

Setting Time
1 In the Clock priority mode, press and hold TITLE for at least 2 seconds while the time is displayed. The time indication will blink.

2 Turn the Rotary encoder to adjust the hours while the time indication is blinking.

3 When the hour has been adjusted, press the Rotary encoder.

4 Turn the Rotary encoder to adjust the minutes while the time indication is blinking. The time is automatically set 5 seconds after the minute adjustment. The time can also be manually set by pressing the Rotary encoder.

• To synchronize the clock to another clock/watch or radio time announcement, press and hold the Rotary encoder for at least 2 seconds after setting the “hour.” Minutes will reset to 00. If the display shows over “30” minutes when you do this, the time will advance one hour.

Jan 12, 2010 | Alpine CDA-9847 CD Player

1 Answer

How do I set the clock


With clock shown, press and hold the display button for 3 seconds. The time will blink. Turn the rotary encoder to adjust the hours while the time is still blinking. When the hour is set, press the rotary encoder. This will switch to minutes adjustment. Turn rotary encoder to adjust minutes. Press rotary encoder once minutes are set or wait 5 seconds and time will store automatically. Reference page 6 in this link to Owners Manual for Alpine CDM-9821.
http://vault.alpine-usa.com/products/documents/OM%20CDM-9821.PDF

Oct 14, 2009 | Alpine CDM-9821 CD Player

1 Answer

Clock setting


CLICK HERE for your owners manual in PDF format.

Page 6(actual) & 8(PDF) details the following.....

1 In the Clock priority mode, press and hold the
DISP button for at least 3 seconds while the
time is displayed. The time indication will blink.
2 Turn the Rotary encoder to adjust the hours
while the time indication is blinking.
3 When the hour has been adjusted, press the
Rotary encoder.
4 Turn the Rotary encoder to adjust the minutes
while the time indication is blinking. The time is
automatically set 5 seconds after the minute
adjustment. The time can also be manually set by
pressing the Rotary encoder.




Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question

May 22, 2009 | Alpine CDM-9821 CD Player

1 Answer

Set


Setting Time
1
In the Clock priority mode, press and hold the DISP/
TITLE
button for at least 3 seconds while the time is
displayed. The time indication will blink.
2 Turn the Rotary encoder to adjust the hours while the
time indication is blinking.
3 When the hour has been adjusted, press the Rotary
encoder
.
4 Turn the Rotary encoder to adjust the minutes while
the time indication is blinking. The time is automatically
set 5 seconds after the minute adjustment. The time
can also be manually set by pressing the Rotary
encoder
.
→ Radio frequency → Clock priority → TITLE mode
mode
Playing time
mode → DISC TEXT
→Clock priority→mode
mode
TRACK
TITLE mode ← TEXT mode ←
*
*
DISP/TITLE
→ BALANCE → FADER → DEFEAT
SUBWOOFER*← VOLUME ←

Jan 15, 2008 | Alpine CDA-9827 CD Player

1 Answer

Interface Problems


If you're pressing on the "rotary encoder", then it's you. But if you're not and instead you're just turning it without pressing, you may have a defective unit. Try literally pulling on the thing while turning it. If that avoids triggering the other functions then either you'll have to get used to being gentle, or you need to take it back or send it to Alpine (again, probably just the front faceplate unit needs work...not the whole radio).

Sep 16, 2007 | Alpine CDA-9885 CD Player

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

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