Pular para o conteúdo principal
Ajuda

Versão atual de: dl7utx ,

Texto:

Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked with a ohmmeter. Contact 4 on the mini USB plug is NOT connected to ground as I had read somewhere on the net.
Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked with a ohmmeter. Contact 4 on the mini USB plug is NOT connected to ground as I had read somewhere on the net.
 
receiver-----------------mini USB plug on garmin Nuvi
 
1 ground black--------------- contact 5
 
2 n/c
 
3 data green------------------contact 3
 
4 data white------------------contact 2
 
5 n/c
 
6 n/c
 
7 +5volts red---------------contact 1
 
inside plug:
 
contact 4--R27 Kiloohms--plugs enclosure
 
The trick is to connect the metal shild part of the mini USB plug with the plugs contact 4 via a resistor 27 Kohm. When contact 4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.
 
Manfred, Berlin

Status:

open

Editado por: dl7utx ,

Texto:

Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked with a ohmmeter.
 
receiver minireceiver-----------------mini USB plug on garmin Nuvi
receiver minireceiver-----------------mini USB plug on garmin Nuvi
 
1 ground black--------------- contact 5
 
2 n/c
 
3 data green------------------contact 3
 
4 data white------------------contact 2
 
5 n/c
 
6 n/c
 
7 +5volts red---------------contact 1
 
. contactinside plug:
contact
4--R27 Kiloohms--plugs enclosure
. contactinside plug:
contact
4--R27 Kiloohms--plugs enclosure
 
The trick is to connect the metal shild part of the mini USB plug with the plugs contact 4 via a resistor 27 Kohm. When contact 4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.
 
Manfred, Berlin

Status:

open

Editado por: dl7utx ,

Texto:

Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked with a ohmmeter.
 
receiver mini USB plug on garmin Nuvi
 
1 ground black--------------- contact 5
 
2 n/c
 
3 data green------------------contact 3
 
4 data white------------------contact 2
 
5 n/c
 
6 n/c
 
7 +5volts red---------------contact 1
 
. contact 4--R27 Kiloohms--plugs enclosure
. contact 4--R27 Kiloohms--plugs enclosure
 
The trick is to connect the metal shild part of the mini USB plug with the plugs contact 4 via a resistor 27 Kohm. When contact 4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.
The trick is to connect the metal shild part of the mini USB plug with the plugs contact 4 via a resistor 27 Kohm. When contact 4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.
 
Manfred, Berlin

Status:

open

Editado por: dl7utx ,

Texto:

Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked with a ohmmeter.
 
receiver mini USB plug on garmin Nuvi
 
1 ground black--------------- contact 5
 
2 n/c
2 n/c
 
3 data green------------------contact 3
3 data green------------------contact 3
 
4 data white------------------contact 2
4 data white------------------contact 2
 
5 n/c
5 n/c
 
6 n/c

7 +5volts red---------------contact 1

contact 4--R27 Kiloohms--plugs enclosure
6 n/c

7 +5volts red---------------contact 1

contact 4--R27 Kiloohms--plugs enclosure
 
7 +5volts red---------------contact 1
 
. contact 4--R27 Kiloohms--plugs enclosure
 
The trick is to connect the metal shild part of the mini USB plug with contact 4 via a resistor 27 Kohm. When contact 4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.
 
Manfred, Berlin

Status:

open

Editado por: dl7utx ,

Texto:

Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked with a ohmmeter.
 
receiver minimini USB plug on garmin Nuvi
receiver minimini USB plug on garmin Nuvi
 
1 ground black--------------------------------------------black--------------- contact 5
1 ground black--------------------------------------------black--------------- contact 5
 
2 n/c contact 4--------------
2 n/c contact 4--------------
 
3 data green-----------------------------------------------contactgreen------------------contact 3 |
3 data green-----------------------------------------------contactgreen------------------contact 3 |
 
4 data white-----------------------------------------------contactwhite------------------contact 2 | | R27 Kiloohms
4 data white-----------------------------------------------contactwhite------------------contact 2 | | R27 Kiloohms
 
5 n/c | |
5 n/c | |
 
6 n/c |

7 +5volts red---------------contact 1

contact 4--R27 Kiloohms--plugs enclosure
6 n/c |

7 +5volts red---------------contact 1

contact 4--R27 Kiloohms--plugs enclosure
 
7 +5volts red----------------------------------------------contact 1 |
 
plugs enclosure--------
 
The trick is to connect the metal shild part of the mini USB plug with contact 4 via a resistor 27 Kohm. When contact 4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.
 
Manfred, Berlin

Status:

open

Postagem original de: dl7utx ,

Texto:

Since nobody knew, I borrowed a coworkers satnav, took the receiver apart and checked  with a  ohmmeter.

receiver                                                                                        mini USB plug on garmin Nuvi

1 ground black-------------------------------------------- contact 5

2 n/c                                                                                                      contact 4--------------

3 data green-----------------------------------------------contact 3                          |

4 data white-----------------------------------------------contact 2                       |      |     R27 Kiloohms

5 n/c                                                                                                                                                 |      |

6 n/c                                                                                                                                                     |

7 +5volts  red----------------------------------------------contact 1                          |

plugs enclosure--------

The trick is to connect the metal shild part of the mini USB plug with contact 4 via a resistor 27 Kohm. When contact  4 is connected to ground, Nuvi expects a charger. When contact 4 is not connected at all, Nuvi expects a data connection. And when contact 4 is connected to the metal shield part of the plug via a 27 Kohms resistor, Nuvi expects the TMC receiver. If the receiver is recognized, the setting appears in the menu and the green button appears in the map.

Manfred, Berlin

Status:

open