Free speak microphone - Bad transmission
Models:
Corsa-B 99..., Tigra 99..., Vectra-B 99..., Omega-B 99..., Astra-G 98...
Engines:
All
Option:
Group:
N - Electrical Equipment
Troublecode:
Non
Complaint:
Poor Performance
Bad transmission quality of free speak microphone.
The voice gets disorted or the transmission volume is to low.
Cause:
Wrong pin connection of 18-pin connector on telephones that requiered passive microphones.
The VDA standard only features active microphones.
Production
Remedy:
Special:
No
In case of complaint check if the telephone features a passive microphone.
In this case change the connection contacts 1 and 3 at the free speak microphone.
1) Radio
2) 18-pole VDA-connector
3) Microphone
4) Antenna
18 pin VDA Microphone pin Wire size Signal name
18 1 0.25 Micro audio
(active mode)
9 2 Shield Micro ground
14 3 0.25 Micro audio
(passive mode)
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Work-instructions:
Open driver door.
Remove dome lamp.
Free connection of free speak microphone connector.
Change position of pin 1 and pin 3 at the free speak microphone connector with the correct disconnection tool.
Labour-operation: TC: Hours:
T 8123 30 Change the position of the microphone pins 92 0.1 hrs
The regular warranty procedure should be used for claiming Set-up-time.