Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General

Notices

S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

2002 V70 XC Ipod Adapter

Views : 391

Replies : 2

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Dec 12th, 2018, 14:27   #1
westbayaab
Junior Member
 

Last Online: Oct 11th, 2021 17:27
Join Date: Jan 2015
Location: Middle Earth
Default 2002 V70 XC Ipod Adapter

Hi

I've retro fitted a genuine Volvo Ipod Adapter to my 2002 V70XC.

It plays through the HU803 , the steering wheel buttons work ... but ... it says the accessory doesn't support charging !!!

The Volvo text says it should ... anyone know why ? and are willing to share answer

Last edited by westbayaab; Dec 12th, 2018 at 14:41.
westbayaab is offline   Reply With Quote
Old Dec 12th, 2018, 14:47   #2
ThomasG
Aka MadBabs
 

Last Online: Nov 11th, 2022 16:29
Join Date: Sep 2017
Location: London
Default

I don't know the answer.

But I do happen to have possibly the same adapter, and few iPods.

Thing is, only the eldest of my iPods will charge off of that adapter.

Newer ones simply won't.

I never thought "why", just accepted it.

Maybe I'll have a lil search over Christmas period, time permitting.
__________________
`03 V70 Mk2 Auto 2.4 B5244 NA, 170Bhp, 295K miles
(Now parts donor)
'05 XC70 MK2 Geartronic, 2.5 B5254T2, 210bhp, 129k miles
ThomasG is offline   Reply With Quote
The Following User Says Thank You to ThomasG For This Useful Post:
Old Dec 12th, 2018, 15:22   #3
ThomasG
Aka MadBabs
 

Last Online: Nov 11th, 2022 16:29
Join Date: Sep 2017
Location: London
Default

Well OK, OK...

I've found a minute now.

Have a look, I think this may be promising

Especially section "pins 25-27"
http://pinouts.ru/PortableDevices/ipod_pinout.shtml

Quote:

USB Data (+)
Pins 25 and 27 may be used in different manner. To force the iPod 5G to charge in any case, when USB Power 5 VDC (pin 23) is fed, 25 must be connected to 5V through a 10kOhm resistor, and 27 must be connected to the Ground (for example: pin 1) with a 10kOhm resistor.

iPod 5G can also be forced to charge by attaching the data + and the data - pins to the 5v via a 10k Ohm resistor ( BOTH PINS) and connecting pin 16 to the 5v (ground). (Confirmed working with iPod 5G 20GB). This provides 500mA of current for charging. For quicker charing, up to 1A, see below.

To charge an iPhone, 3G, 3GS, 4 / iPod Touch, 2nd gen, 3rd, 4th or Ipod Classic (6th Gen), usb data- (25) should be at 2.8v, usb data+(27) should be at 2.0v. This can be done with a few simple resistors: 33k to +5v (23) and 22k to gnd(16) to obtain 2v and 33k to +5v and 47k to gnd to obtain 2.8v. This is a notification to the iphone that it is connected to the external charger and may drain amps from the usb.

To charge iPod Nano pins 25 and 27 should be tied together and then connected to a 10K ohm resistor, and the other side of this resistors then needs to be connected to 5v power.

It's also possible to charge the iPod's or iPhone's battery to make use the of internal +3.3v output (18) terminal to connect the USB Data + (27) thru a 47k ohms resistor and the USB Data- (25) thru a 47k resistor to the USB Power source +5v (23). This way the USB function is still useable for normal operations and makes it easier the fit in a plug. The resistors are not to critical 2x 150k's still work.

Added correction: iPod 2.1A charger advertises 2.8V on D+ and 2.0V on D-. Tying either wire to 5V could damage the target - use resistors tied to 5.1V and ground to be safe.

And this may be related to ability to charge old iPods in the car, but not new ones:

Quote:

The iPod Nano 4th Gen no longer charges from the 12 V supply on the Firewire pins. If you tie Pins 25 and 27 together and then connect a 10 kOhm resistor to ±5 volts to pins 23 and 15 (or 16), it will charge. If you don't tie Pins 25 and 27 together, it won't charge.
__________________
`03 V70 Mk2 Auto 2.4 B5244 NA, 170Bhp, 295K miles
(Now parts donor)
'05 XC70 MK2 Geartronic, 2.5 B5254T2, 210bhp, 129k miles

Last edited by ThomasG; Dec 12th, 2018 at 15:35.
ThomasG is offline   Reply With Quote
The Following User Says Thank You to ThomasG For This Useful Post:
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 13:18.


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.