GRUNDIG Service
FREAXX 50 RRCD 4305 SPCD
2 - 4
2. Cassette Deck
Measuring instruments/equipment: Frequency Counter, AF Voltmeter, Wow and Flutter Meter, Fe Test Cassette (e.g. 449)
Connect the Frequency Counter to the headphone
socket.
Insert Test Cassette (e.g. 449), play 3150Hz part.
Connect the Wow and Flutter Meter to the headphone
socket.
Insert Test Cassette (e.g. 449), play 3150Hz part.
Connect the AF Voltmeter to the headphone socket.
Insert Test Cassette (e.g. 449), play 8kHz part.
Connect the Frequency Counter to connector CN401
Pin2 / Pin4 (GND).
Insert a recordable cassette.
Function: Record-Start.
With adjustment control (in the cassette motor) set the
frequency to 3150Hz
±
0.1%.
Deviation < 0.35% (aurally compensated). Playback
measuring time
≥
30 seconds.
With the head adjustment screw
1
set the
left and right channel to maximum level.
The levels of the two channels must not
differ by more than 3dB.
Set the frequency to 64kHz
±
0.3kHz with L401.
1. Tape speed
2. Wow and flutter
3. Head gap angle
(Azimuth)
4. Bias frequency
Adjustment
Preparation
Adjustment Process
Bandgeschw.
Tape speed
1
