Becker europa TR, Руководство по обслуживанию

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balance manual
Area
Signal generator
MHz uV
on MHz
balancing
elements
Adjustment to:
Remarks
AM IF:
1. MW 0.46
1.63 L 225, L 220, L 219, L
213, L 212
Output max.
Input voltage (signal generator) selected so
that about 1 V NF voltage produced at the
output.
FM IF:
2. FM
3. FM
4. FM
5. FM
6. FM
7. FM
10.7
10.7
10.7
10.7
10.7
10.7
L 223
L 224
controller 241
L 221, L 222, L
210, L 211
L 208, L 209
Rectified voltage max.
Rat io-Null
Directional voltage min.
Rectified voltage max.
Rectified voltage max.
Rectified voltage max.
Before L 222 far out of tune. Voltage
measured at rationalization socket, contacts
2-3. Before L 222 far out of tune. Voltage
measured at rationalization socket, contacts
4-3. 0.7 value of the rectified voltage match
(approximately 1.2 V). While checking. correct
if necessary by means of the 224th Ratio-zero
crossing. Before L 211 far out of tune. Before
L 209 far out of tune. Before L 203, far out of
tune. Only with Empfindlichkeitskon- trolls
over the IF channel and L 203 turn to
maximum.
MW:
8 MW
9 MW
10 MW
11 MW
12 MW
0.51
1.63
1.63
0.56
Ant.Buchse
Ant.Buchse
Ant.Buchse
Ant.Buchse
0.51
1.63
1.63
0.56
Trimmer C 238 L 215
Ant.Trimmer C 2
Zw.Kr.Tri. C 221
Kern.Vorkr.u.
Zw.Kr.Variometer (L 201
and L 207)
Output max.
Output max.
Output max.
Output max.
Adjustment points 8 u. Get 9 re- until tuning
range corresponds to the frequencies
mentioned adjustment. Threaded nipple
twist.
as Repeat adjustment procedures in Section 10 and 11 until further trimming any additional speed increases can bring more.
LW:
13. LW
14. LW
15. LW
16. LW
17 LW
0.145
0.145
0,400
0,400
Ant.Buchse
Ant.Buchse
Ant.Buchse
Ant.Buchse
0.145
0.145
0,400
0,400
Trimmer C 239 line
trimmer L218 L 202,
L 206
Output max.
Output max.
Output max.
Output max.
Trimming operations 13, 14, 15, 16, 17 repeat until further trimming no additional sensitivity keitssteigerung more can bring.
KW:
18th
19th
20th
5.9
5,975
6,175
Ant.Buchse
Ant.Buchse
Ant.Buchse
5.9
5,975
6,175
L 214 (oscillator)
L 204 L
205
Output max.
Output max.
Output max.
Note that oscillator frequency the amount of
460 kHz (IF) at 5.9 MHz!
FM:
21st
21st
23rd
87
87
95
10
Ant.Buchse
Ant.Buchse
Ant.Buchse
87
87
95
C 114 (oscillator)
L 103 (1 IF filter)
Vorkr.Trimm.C107
Rectified voltage max.
Rectified voltage max.
Rectified voltage max.
First, the primary circuit, then secondary
därkreis Syndicate. Meßsenderspannung so
choose that 0.7 value of the rectified voltage
wi not exceeded rd!
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