Philips b 4 x 69 a service manual

Page 2

-2. EMS 9A

Trimig the receiver.
General

Volume control to mum.

lane control: to admin high. end maximum law.

Connect I. voltmeter tame: the external loudspeaker connectione.
Unless otherwise eteted,ell signal: ere epplied. to the aerial
socket via a dam aerial.

When adjusting one makes use of trimming points on the dial.
Trimins point 1 ie situeted entirely At the left on the dial.
Trimming point 2 is situated entirely at the right on the dill.
Before trimming, adjust the pointer at minimum position of the
variable nepecitor to trimming point 1.

Before triming the LF. hendfiltere, more! the cores of 522, 321,
$19, 320, 317, 517:. u fer a.- pol-11110.

leve- Trimming
we point 51ml 'lzzln Indication
1.1. 11.11. 1 452 ka/e 52: Hex.
bendfiltere Vie 33000 1317 S21 output
to 51-31 519 voltege
520
~ 521
Series tuned IJ. ' 2 452 lea/e s17 gig}.
LF. filter S171: output
end. wavetnp voltage
2 112 kc/e 533 m
I..w. 529-529 E. output
1 405 kc/e 044 g "1
038
2 600 kc/e 531
528.32% 1: m.
1... . 8. autyut
1 1630 kc/e 614 a voltage
C10
. 2 1.9 Ila/e 516 a .
'RJI. and 59 : Max.
oscillator 5.. 3 :- output
circuite 1 5.15 Ila/e 013 a: voltage
09
2 6 Ila/s S14
37 3 1m.
5.11.21: 3. output
1 15.1 Xc/s C12 ,2 voltage
as
2 15.66 Mc/e 512 a
55 g m.
S.W.2a 3. output
1 25.4 Ila/e 611 a: voltage
CT