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5300 RDS / 5600 RDS
Adjustment Procedures
GB
1. Electrical Adjustment
Test equipment: DC Voltmeter, Test Generator, AF Voltmeter, Stereo Coder, Sweep Generator, Test Cassette 448A (Part-No 35079-023.00)
Adjustment
1. MW Oscillator
MW;
Connect a DC Voltmeter to FMP604.
2. LW Oscillator
LW; Frequency 153kHz.
Connect a DC Voltmeter to FMP604.
3. MW Band Pass
Connect a Test Generator to aerial input; MW; m = 0.3; f
=1 kHz; E´ ≤ 10µV (20dBµV).
Connect AF Voltmeter to Loudspeaker Output.
4. LW Band Pass
Connect a Test Generator to aerial input; LW; m = 0.3; f
=1 kHz; E´ ≤ 10µV (20dBµV).
Connect AF Voltmeter to Loudspeaker Output.
5. AM IF
Connect a Test Generator to aerial input; MW; Frequency
990kHz; m = 0,3; f
Connect AF Voltmeter to Loudspeaker Output.
6. FM Oscillator
FM; Connect a DC Voltmeter to FMP04.
7. FM Demodulator
Connect a Test Generator to aerial input; Frequency
93.0MHz; f
Connect AF Voltmeter to Loudspeaker Output.
8. FM Band Pass
Connect a Test Generator to aerial input; Frequency
93.0MHz; f
Connect AF Voltmeter to Loudspeaker Output.
9. FM Aerial Band
Connect a Test Generator to aerial input; Frequency
Pass
93.0MHz; f
Connect AF Voltmeter to Loudspeaker Output.
10. FM IF
Connect a Test Generator to aerial input; Frequency
93.0MHz; f
Connect AF Voltmeter to Loudspeaker Output.
11. FM Stop
Connect a Sweep Generator to aerial input; FM; Center
frequency 93.0MHz; ∆f = 100kHz; E´ = 1mV (60dBµV); no
Generator
modulation.
Connect an Oscilloscope to FMP107.
12. Field Strength
Connect a Test Generator to aerial input; Frequency
Level
93.0MHz; E´ = 100µV (40dBµV); no modulation.
Connect DC Voltmeter between CIC101-(3) (+) and
CIC101-(5) (-).
14. Dolby
Play Test Cassette 448A (315Hz Dolby part).
Connect AF Voltmeter to FMP1107 (left channel) resp.
FMP1108 (right channel).
2. Adjustment of Cassette Drives
Test equipment: Frequency Counter, Test Cassette 448A (Sach-Nr. 35079-023.00)
Adjustment
Tape Speed
Connect Frequency Counter to Loudspeaker Output.
Play Test Cassette 448A (3150Hz part).
GRUNDIG Service
Preparation
= 1kHz; E´ ≤ 10µV (20dBµV).
mod
= 1kHz; dev. 22.5kHz; E´ ≤ 100µV (40dBµV).
mod
= 1kHz; dev. 22.5kHz; E´ ≤ 3µV (10dBµV).
mod
= 1kHz; dev. 22.5kHz; E´ ≤ 3µV (10dBµV).
mod
= 1kHz; dev. 60kHz; E´ ≤ 3µV (10dBµV).
mod
Preparation
Abgleichvorschriften / Adjustment Procedures
Adjustment Procedure
Align with L 612 (1) at 531kHz to 1.2V
Check at 1602kHz for 7.5V
Align with L 613 (5) at 153kHz to 1.3V
Check at 279kHz for 5.0V
Align alternating with L 603 (3) at 558kHz and with C 606 (4)
mod
at 1548kHz for maximum AF output.
Align alternating with L 604 (7) at 162kHz and with C 607 (8)
mod
at 261kHz for maximum AF output.
Align with F 601 (9) for maximum AF output.
Align with L 04 (A) at 93.0MHz for 2.6V
Align with F 105 (I) for AF maximum.
Align with L 03 (C) for AF maximum.
Align with L 01 (D) for AF maximum.
Align with F 101 (F) for AF maximum.
Align F 105 (I) for a symmetrical stop impulse.
93,0MHz
+5V
0V
∆f = ± 28kHz
Align with R 105 (H) for +400V
Adjust R 1110Z (L) for the left channel resp. R 1113Z (M)
for the right channel for 490mV.
Adjustment Procedure
With Motorpoti adjust for 3150Hz.
±
50mV.
±
0.5V.
±
50mV.
±
0.5V.
±
20mV.
±
20mV.
Motorpoti
2 - 2
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