Question about Pioneer DEH-1400 CD Player

1 Answer

Looking to use iPod, no manual to tell how to switch to the addaptor

Just got a a car that has this system, but I have no manual for it. I'd like to be able to use my iPod via adaptor but im not sure how to switch over to it

Posted by on

  • A3Ent Sep 22, 2008

    Have you got any pictures or video tutorials on this?  I want to add sound through my car speakers.  

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

You definitely can wire an auxiliary input into a pioneer DEH-1400. The design of this unit is highly modular and thanks to the engineers who designed it there is an easy, straightforward way to add an aux input to the unit. The way to do it is to decouple the the AM/FM receiver stage from the volume control/Amplifier stage and inject your MP3 audio signal there. If you have experience taking things apart, know how to use a soldering iron and are good at basic electronic wiring you can do it. It does take some time but for me, it was worth it.

Look for and down load the service manual for the deh-1400. I saw it on a number of sites and at least one of them lets you D/L for free. This has a schematic and will help you understand everything described here.

There are spare (unused) line level audio inputs to the Volume control (VC) chip but I was concerned that I would have to somehow re-program or spoof the system controller to tell the VC chip that the spare is being used, so instead I just decoupled the AM/FM receiver line stage from the VC chip. This is easily done by desoldering and removing jumpers JP96 and JP100 from the circuit board. You will see the jumpers when you take the unit apart, they aren't shown on the schematic or labled on the PWB layout drawing. These jumpers connect the FM line out to the input side to C311 and C312. Once the jumpers are removed, you now have a usable stereo line level input to the VC chip that utilizes all of the audio equalization and amplification features of the unit.

So how do you select between AM/FM source and Aux. input source you ask? Well, I just took the brute force approach and wired in miniature Double Pole, Double Throw (DPDT) Switch. One position joins the FM stage to the VC chip (like the jumpers previously did) and the other position connects the Aux. input to the VC chip. A convenient space near the head unit (on my 15 year old truck) was available on my dash to mount the switch and 3.5 mm stereo input jack. (sweet).
Another way to do it is to use a 3.5mm input jack that has normally closed connections which open when the plug is inserted the Aux. jack (like GC electronics part number 30-574). (this saves a second hole in the dash and a switch that you have to flip).
I used twisted, shielded pair wiring for all wiring, (shield used for audio ground) I enlarged an existing hole on the back of the sound deck (between the heat sink and the line out jacks) to run the wiring out. I picked up audio ground at the ground jumper for the VC chip (were C307 and C309 are connected in common). The solution sounds great and works good. Just run the radio in FM mode, plug in your MP3 to the Aux. Jack and ignore the tuning display. (or tell yourself "wow, every station is getting music I like ... and commercial free too!)

Notes on Input volume level setting and input impedance: If you are plugging your mp3 player directly into the Aux. jack you will probably notice that you should adjust the volume level on the mp3 player in order to match the volume level that is fed from the AM/FM receiver to avoid a sudden change in volume level when switching between sources. If you are getting fancy (like I did) and putting a docking station into your vehicle or you just don't want someone plugging in their mp3 player at max volume and making you have to then turn the radio volume down, you should put an attenuator circuit in line with the Aux. input. The attenuator circuit that I used is a simple home made (dual for Left/Right) resistor divider network. I used the same resistor values that pioneer used in their design coming out of the AM/FM receiver stage. (2.7K Ohm for the series elements, 1.6K Ohm for the shunt elements) I used 1/4 W, 2% metal film resistors. This will provide approx. 4.3dB of attenuation and should match the line level out of your MP3 (or the earbud out at max volume setting) to the volume level sent out by the FM stage thus allowing smoother volume transition when you plug the MP3 player in. The resistors also provide some isolation/matching between the (relatively) low impedance of your MP3 output and the VC chip. (The attenuator is really optional but I like having the volume levels matched when I move between sources).
Good Luck, worked for me.
Bob D

Posted on Aug 25, 2008

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,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do i change the cassette side from 2 to 1


try pressing the fast forward and rewind buttons at the same time.

Jun 29, 2012 | 1994 BMW 7 Series

1 Answer

I have connected a cable to the external port on the back of the unit to use my IPOD, how do I switch to use the AUX port.


occasionally car stereo receivers automatically detect an input when you start playing music through you ipod. Sometimes you have to manually switch it yourself. try looking for an input button to change inputs on your stereo.

May 03, 2011 | JVC Car Audio & Video

2 Answers

Need a user manual


since you did not tell us what generation of nano you have i can not tell you EXACTLY which manual to use, but if you go to the apple support page
http://support.apple.com/manuals/#ipodnano
you will be able to see which ipod you have (just by looking at the thumbnails)

Oct 02, 2009 | Apple iPod nano

2 Answers

Looking for owners manual


you can go to www.apple.com and follow the links to support and with the info you have find your ipod and download an owners manual

Happy iPodding

Jun 03, 2009 | Audio Players & Recorders

2 Answers

Ipod Hook-up


Ipod's utilize headphone jack style connectors which can be purchased just about anywhere electronics are sold, however most dvd players utilize RCA jacks so you must purchase an adapter from ipod jack to RCA jack it runs usually about $10-25.00 also you can purchase a FM transmitter kit for about the same price but sound quality is not as good so my suggestion is go for rca converter and hook it up to audio input in back of dvd player or stereo for best quality.

Feb 11, 2009 | Samsung 1200W 5.1-Ch. XM-Ready Home...

2 Answers

How to hook up an ipod to my '07 Tacoma radio


There won't be a direct plug that will work, but you do have 2 options.

1. An aftermarket iPod interface module. Try PAC, Peripheral, or USA Spec. They may have one for your vehicle that will give you a direct audio in, as well as charging and possibly iPod control from the head unit.

2. A hardwired FM modulator. This would plug in through the car's antenna at the back of the radio, and you will probably find that it gives much better sound quality than the wireless FM modulators you've been using.

Mar 05, 2008 | Car Audio & Video

2 Answers

Ipod video problem


hi can you tell me where the tv out switched is i looked evrey where and i can find it thank you my email is jlfortoul@cantv.net

Dec 19, 2007 | Jensen VM9510 Car DVD Player

Not finding what you are looking for?
Pioneer DEH-1400 CD Player Logo

385 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pioneer Car Audio & Video Experts

Michael Kovalik III
Michael Kovalik III

Level 2 Expert

117 Answers

The Knight
The Knight

Level 3 Expert

72670 Answers

yadayada
yadayada

Level 3 Expert

70387 Answers

Are you a Pioneer Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...