Bang & Olufsen BeoCenter 1, Repair Manual

Page: 118 / 545

SERVICE MENU
TV SERVICE MENU
In TUNER SYSTEM it is possible to set only relevant tuner systems to ON (only multi
standard TV’s). This is done to reduce the tuning time.
AFC ON/OFF is used in connection with adjustments but it may also be useful in
other situation.
The AFC is set to ON when the TV has been turned off by means of the mains
switch.
LOW TUN RANGE 45
HIGH TUN RANGE 860
LOWER BAND LIMIT 170
UPPER BAND LIMIT 450
VHF-1 CONSTANT 162
VHF-2 CONSTANT 148
UHF CONSTANT 49
These items are for factory use.
TUNER TAKEOVER 27
IF ADJUST 63
AFC STATUS I/L
FM SOUND ADJUST 14
These items are described in the section on adjustments.
MODULATOR SYSTEM
Used to switch between modulator system B/G or I.
Corrections to page 5.7
TELETEXT ADJUSTMENTS
GROUP DELAY ON
Group delay errors in certain cable aerial systems can disturb the reception of
teletext. This is prevented by connecting a fi lter in series with the CVBS signal
applied to the teletext decoder.
PR are programme numbers, if all programme numbers are 0, no fi lter has been
connected on any programme number.
If you wish to connect a fi lter on a programme number, select a PR line by pressing
m
or
p
, then press
l
or
n
to select the desired programme number and fi nally
press GO .
8.17 Service mode, English