Albrecht AE 6890 Repair & Adjustment Hints

Albrecht AE 6890 Repair & Adjustment Hints

Jumper settings, power and channel options
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AE 6890 Jumper settings, Power and Channel options
Jumpers at detachable front section board
To open: take off front section, remove 4 screws
Jumper section A:
Selecting the initial factory default frequency. (1 = solder jumper or 0 Ohm resistor
added) Factory default is version 3 jumpers added for Germany dE
Version A0
1
1
2
0
3
1
4
0
5
0
6
1
Jumper section B:
Enable 240CH by adding 0 OHM or solder jumper.
Default setting: no jumper, 240 CH is not allowed
Jumper section C:
Default: Enable MULTI Standard selection by user: 0 Ohm or solder jumper added
Disable Multi Standard selection: delete 0 Ohms or delete solder jumper.
Repair & Adjustment Hints
A1
A2
0
0
1
0
Spain (Italy)
1
0
GERMANY
0
1
1
1
CEPT(FM)
1
1
POLAND(-5K) Po(FM40/AM40 4W)
Country
DISPLAY,CHANNEL
UK
U(FM40CH 4W)
E (F40 4W/AM40 4W)
DE(FM80 4W/AM40
EU(FM40 4W/AM40
EU
EC(FM40 4W)
1W)
1W)

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Summary of Contents for Albrecht AE 6890

  • Page 1 Repair & Adjustment Hints AE 6890 Jumper settings, Power and Channel options Jumpers at detachable front section board To open: take off front section, remove 4 screws Jumper section A: Selecting the initial factory default frequency. (1 = solder jumper or 0 Ohm resistor...
  • Page 2 Operation in 240 CH mode: • Keep buttons PRI and TON pressed during switch on • Release Power knob • Relase PRI and TON • Select bands A to F by CH 9 knob Reset to Multi Standard mode: • Keep button CH 9 pressed during power on Reset appears on display for a moment, then normal operation starts Operation in standard mode (all EU countries) •...
  • Page 3 Power jumper options (for use in Russia only) Open main radio cabinet. Install solder jumpers or 0 Ohms resistors. Possible modifications (1) and (2) or (3) (1) highest possible AM power max. 6-8 W eff (2) highest possible FM power max. 8-10 W (3) set AM power from 1 W to 4 Watts Note: instead of jumper (3) the AM power in 1 Watt position can be fine adjusted by potentiometer between about 700 mW and 4 Watt eff.
  • Page 4 4 W Power adjustment in FM User potentiometer RV 6 in the power stabilizing section (near Modulation transformer for fine tuning to 4.0 Watts FM power.
  • Page 5 Main board, with components values...
  • Page 6 Main board, circuit diagram...

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