Tip & How-To about Car Audio & Video

No audio even though sterio wires are all connected

My 1997 Alpine CDE-7828's wiring schematic doesn't disclose one important thing for many older and possibly even some newer sterios (aka 'head units'). If all wires are connected per the sterio's schematic andf sound is missing, you probably have a dedicated pin on yout vehicle's harness/connector that will read something like 'Turn-on AMP signal",
until you jumper the ignition hot lead (between the harness plug and your sterio) to your vehicle's 'Turn-on AMP signal' pin/connector wire (add a wire if none is supplied in your vehicle's connector), you won't get any sound even though all the other wires are connected per your head unit''s instructions.

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alpine 9845 cde head unit car stereo i Cannot figure out how to access the Fader not the balance,altho i havent seen that function either. ive been to the alpine site and they dont even mention it. im sure its gonna be something stoopid,but if you know Please tell me!!!! thanks.


Press the Rotary encoder (CDE-9845/CDE-9843
only) or press MODE (CDE-9841 only) repeatedly
to choose the desired mode.
Each press changes the modes as follows:
BASS → TREBLE → SUBWOOFER* → BALANCE → FADER
→ DEFEAT → VOLUME → BASS
BASS: -7 ~ +10
TREBLE: -7 ~ +7
Subwoofer : 0 ~ +15
Balance : L15 ~ R15
Fader : R15 ~ F15
Defeat : ON/OFF
Volume : 0 ~ 35

Feb 11, 2010 | Alpine CDE-9845 CD Player

1 Answer

put cd in and says pause and then eject. somtimes


press reset but with a pen tip ,hold for 20 secons.

Dec 26, 2009 | Alpine CDE-7828

1 Answer

subwoofer for alpine cde-9843


In short, no.

The CDE-9843 cannot drive a sub of the type you mention without an amp, but you can fit a sub with it's own built-in amp.

As standard, the head unit has a basic in-built amp supplying 4 x 16w RMS at 4ohms but there is the facility via the unit's own menu to turn off the in built amp and use the output sockets as a pre-amp feed, but in reality if you want to drive an amp you'd be better off to start with a more highly specified head unit to begin with, even the next model up, the CDE-9845 is better suited as there are pre-outs for front and rear speakers.

User instructions are available from here.

If my reply has been of assistance then please return the favour by rating my answer.

Nov 09, 2009 | Alpine CDE-9841 CD Player

1 Answer

program guide for the car sterio features


Go Here

http://caraudio.manualsonline.com/manuals/mfg/alpine_electronics/cde-9852.html?s=fpw

Nov 17, 2008 | Alpine CDE-9852 CD Player

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