[Premium-Rx] AEG TELEFUNKEN PRESELECTOR ES1700

[Pat1McA at aol.com]

Greetings to all List Members,
 
I am looking for information to allow me to convert the ES1700 to give  the 
BYPASS functionality of the later model ES150/2 Preselector.
 
1. Basically I need the ES1700 board layout ( Bestuckungsplan Vorselektion  
ES1700) and the schematic diagram (Stromlaufplan Vorselektion ES1700).
 
2. On my late AEG E1800/3 HF receiver the front panel "ANT"  switch also 
has the word "PRESEL" on it in white, not green lettering.
 
Can anyone please explain how this is supposed to switch the Preselector  
in/out? This is usually done with Pr16 and Pr17. It is a total mystery to me  
!
 
Many thanks, apologies I had to ask, please reply off-line.
 
Regards & 73 de Pat G3YFK