Philips PM 5390 Service Manual page 35

7-4
Seq.
Keyboard
operation
FREQ
MHz
A FREQ
MHz
SWEEP
TIME
(S
LEVEL
dBm mV/pVA
MODULATION
INT
,
EXT
,
AM
1
FM VIDEO
+STEP
freq.
i
level
SWEEP
SINGLE CONT STORE
SWEEP
T.j
OUT
measured
via':
outputs
RF
OUT
test
point
measurxng
ins trument'
(
see 7*2*)
measured
value
adjustment,
control
position
remarks
general: for the correct sequence of
pushbutton actions see operating manual
3.
3.1
.
3.2.
3.3.
3.4.
3.5.
3.6.
3.7.
1000
.
10...1000
100
.
90.0
.001
.001
.010
.010
.100
-7
®
-7
(g>
-7
(g)
-7
0
-7
®
-7
0
-7
0
+
X
H
X
"
X
-l-x
-
X
C/T
OSC/CT
lOOOMHz+lkHz
10MHz
- . .
IGHzj^lx
1
0'
100.
001
MHzjf
100Hz
99
.999MHZ+100HZ
lOO.OIOMHzjflOOHz
99 .999MHzj2l00Hz
lOOkHz+IHz
RF-U2/C563
Frequency
,
C/T setting: gate time 1s
time base
,
adjustment after 80 min.
frequency steps: 10,100,190,280,370,460,550 Mltz,
640,730,820,910 and 10O0 MHz
frequency step-up 1kHz
frequency step-down 1kHz
frequency step-up lOkHz
frequency step-down 10kHz
symmetr. waveform? C/T setting: gate time 10s
4.
4.1
.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
0.1 ...19
.1
19 .1
...1019 -1
0.1 ... 19
.
19
.99... 679 .99
680. ..1019 .99
470.
1
.000
10.0
1.000
10.00
10.00
-7 0
-7
0
+ 13
0
+
13
0
+
13
0
-7
0
-17
0
-27
0
-37...-57C
+ X
+
X
+ X
+ X
+ x
PMTR
SPA/*
-7dBm+2dB
-7dBm+2dB
+
1
3dBm+2dB
+13dBm+2dB
+13dBm+3dB
-7dBm+2dB*l
ref*
^ (
-1C+0.3 )dBm
ref* ^(-20+0.3) dBm
RF-U1/R638
I
RF-U1/R638
and
RF-U12/R622
/C520
I
Output level, coarse attenuator
setting,
error incl. frequency response,
adjustment range .^0.5 dB
if necessary, iterate seq. 4.1.
setting error incl. frequency response PM5390S,
adjustment range
<0.5
dB
C520/RF-U
12
additional
f>850
MHz
*1 use for reference value seq. 4.7. - 4.9.
-p
coarse attenuator setting
(10
dB steps)
*
,
or other UHF equipment
5.
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
470. 107
0
1
16
0
-107,..- 117
118...-
122
12 3...- 127
-
X
-
X
-
X
LP1/U2
PMTR
Vdc
PMTR
-7dBm+2dB *
3.4V+50mV
ref *^-9dBm+0. IdB
ref *2
0...- 1
0dBm+0.
3
dB
ref *2-1 1..-l5dBm+0.8dB
ref
*2 -
1
6...-
20dBm+2dB
R681/U2..
and
I
R662/U2J
Fine attenuator setting
,
remove plug S2/unit
2
(coarse attenuator ^ 100 dBm not
active)
*2 use for reference
seq.
5.2. - 5.5.
add. information
,
test pt. LP1/U2 or RF-U1/VR2
pin diode attenuator
|-p
push -STEP button for single IdB steps
if
necessary, iterate
5. 2/5.
3.
3
*
if
tolerance exceeds close solder
joint "E'VUI
repeat
seq. 5.2. to 5.4. (software I-A.
1
/II-A.
1
plug in S2/unit
2
when adjustment
is
finished
5.7.
470.
O. 1/250/850/
1000
470.
0.1/250/850/
1000
5.8.
101.
-26
0
-27 0
-17
0
-17
0
-1270
SV/*
ref*
ref*^-1dBm+0.8dB
RF-U12
C517/R620
PM 5390S (software version 1-9
.
1/II-9.
1
use
for
reference
,
*other RF equipment
next step -26 dBm to -27 dBm
PMTR ref *4
ref* -1dBm+0.8dB
RF-U12
C517/R620
PM 5390S (software version I-A. 1/II-A.
1
4
* use for
reference
next step down
-16dBm
to
-17dBm
-127dBm+3dB check, if RF
equipment available