Sennheiser FT-902S35, FT-906B20, FT-905A, FT-906A20, FT-902S15, FT-902S50 manual LED indicators

LED indicators 4.2.1

POWER

+ 12 V

- 12 V

+ 5 V

DC - A

DC - B

OL - A

OL- B

REMOTE

+ 20

dB

+ 20 dBu

LED DISPLAY FUNCTION

The three upper LEDs light up if the in-built power supply unit operates perfectly

+12 V supply voltage = 12 V - 12 V supply voltage = -12 V

+5 V supply voltage = 5 V

If one LED switches off, please replace the complete power module and return it for fault finding.

'The other four LEDs serve to monitor the antenna boosters connected (e.g. AB 1036 TV):

DC-A The switch on input module A is set to ON. The antenna booster is powered by the EM 1046 system

DC-B The switch on input module B is set to ON. The antenna booster is powered by the EM 1046 system

OL-A (Overload) The current across antenna socket A exceeds 150 mA! Short circuit! Check your antenna booster.

OL-B (Overload) The current across antenna socket B exceeds 150 mA! Short circuit! Check your antenna booster.

EM 203, Publ. 10/94 engl 37