Am If Alignment; Mw Rf Alignment; Lw Rf Alignment (Sw/Mw/Lw/Fm Only); Sw Rf Alignment - Rotel Rpm-10 Technische Anleitung

AM IF and
Signal

Indicator

Instruments: AM Signal Generator (400Hz 30% Modulated), AC VT VM and Oscilloscope.
AM IF Alignment ( AM/FM,SW/MW/LW/FM)
Step
Coupling
Pin No. 5
(on IF board
through a 0.01
mfd Capacitor
MW RFAlignment(AM/FM, SW/MW/LW/FM)
Step
Coupling
Test Loop
Radiate signal
into ferrite
loop-stick
antenna.
2
LW RF Alignment(SW/MW/LW/FM
Generator
Step
Coupling
Test Loop
Radiate Signal
into ferrite
loop-stick
antenna.
2
SW RF Alignment(SW/MW/LW/FM
Generator
Step
Coupl ing
Antenna
terminal
2
RF Alignment/

Calibration

Generator
Frequency
455K Hz
Generator
Frequency
600K Hz
1400KHz
F requency
160KHz
330KHz
Frequency
4MHz
12MHz
Tuning Dial
setting
No interfering
L203,
at low end of
scale
Tuning Dial
setting
L201
600K Hz and LOOI (ANT)
lead
CT5 (OSC)
1400K Hz
CT4 (ANT)
only)
Tunging Dial
setting
1-204
LOOI
160K Hz
against the
lead
CT6 (OSC) and
330 KHz
CT7 (ANT)
only)
Tuning Dial
Adjust
setting
1.207 (OSC) and
4M Hz
CT8
L206
12MHz
CT9
Adjust
L205 Maximum
(on IF board)
on AC
Adjust
(OSC)
Maximum
on AC
line side
and
Adjust
(OSC) and
(ANT)
Maximum
line side
on AC VTVM.
Adjust
(ANT)
Maximum
on AC
(ANT) and
(ANT)
Adjust for
reäding
VTVM.
Adjust for
reading
VTVM.
Adjust for
reading
for
reading
VTVM.