Videotec TWM1 Operating Instructions Manual page 22

RECEIVERS
First adjust the GAIN trimmer to achieve a 1 Vpp signal.
Then adjust the DIST trimmer (distance equalisation) to reconstruct the video signal according to the distance
(check the signal using an oscilloscope). If the signal is over-compensated try again by turning OFF some dip
switches on the transmitter; if under-compensated try again by turning ON some dip switches on the transmitter.
If necessary (only with distances close to or at the maximum or when colour is practically absent) enable the
BURST trimmer (colour) by setting the jumper at position A, and adjust the BURST trimmer until the best
possible colour is obtained.
If used with minidome, set for video signal transmission over twisted pair (please refer to instruction manual),
remove the J1 and J2 jumper.
The meaning of the LED's is as follows
GREEN LED OR "PW ON"
OR "POWER"
RED LED OR " LEVEL OUT "
OR "LEVEL"
TWRB1
TWRB1A
ON
Powered correctly
High quality video signal
Pag. 6
TWRR1
Back Front
OFF
Power supply absent
Low quality or no video signal
PCB
MNVCTW_0610