Test Mode - Philips 22 DC 397 Service Manual

TEST MODE
Start the Test Mode by keeping the RDS key pressed for 5 sec while the set is switched ON, independent of the
actual source, however the diagnostics must not be active.
The hardware and software identification number will be displayed for 1 sec, after that the peti i cake will
be evaluated acc. to table 1.
During the Test Mode all tuner features ¢ are 6 accessible, except RDS On/Off. To leave the Test' Mode keep the RDS
key pressed again for 5 sec.or switch the set Off.
pn oe -| HHHH 'hardware number
SSSS software number
| AQSXFFF.F _ = field strength 6 - F (ref. to table 2)
oe, Q ~ ~ = quality 0-F
S$ = suppression counter O-F
x = switchingreasons. |0-F (ref. totable3) | .
|FFF.F = frequency 'MHz os
CPS = RDS sync. state on = locked'
Oo = ° © = — s = :«~P*i cod verification on = verified
AF change request on = request
Table 2: Field Strength
Display _| Switching Reason
} not used
weak field strength
weak multipath
weak field strength and weak multipath
strong multipath
strong multipath and weak field strength
very strong multipath
very strong multipath and weak field strength
adjacent channel distortion
adjacent channel distortion and weak field strength
adjacent channel distortion and weak multipath
adjacent channe!} distortion, weak field strength and weak multipath
adjacent channel distortion and strong multipath
adjacent channel distortion, strong multipath and weak fieid strength
adjacent channel distortion and very strong multipath
adjacent channel distortion, very strong multipath and weak field strength
TAMUOWrPrOeOOtN OAR wWH =A OO
'abe 3 all Reason indication
Table 4:'Volume level
PCS 87 825
22 DC 397 12