Denon DRA-25 - FM;MPX Alignment; MW Alignment; LW Alignment

FM/MPX ALIGNEMENT
Alignment Tuning
Output
Table 1
Adjust
Frequency
tern Setting
{Input Level
Type Connect to
Points
Remarks
Adjust to
Tuning Center |’ 98 MHz
60 dB
Center Meter} T.P.11,12
T-1
Function: FM
Mode: Auto
Center of
Tuning Meter
Distortion
{Mono} 98 MHz
60 dBu
Distortion
(Stereo)
Type Frequency
Mi SSS. | 98 mz
Meso | 98 MHz
FM SSG
Stereo (L)
60 dBu
Distortion TAPE REC {L)
Meter
T-2
Function: FM
Mode: Auto
Minimum
Distortion
Modulation Coupling
Antenna
None Terminal
1 kHz Antenna
100% Terminal
Main: 1 kHz L-ch
90% Antenna
Pilot: Terminal
10%
Distortion
Meter TAPE REC (L)
IFT on
Front End
Function: FM
Mode: Auto
Minimum
Distortion
Noise Center
& Distortion
MW ALIGNMENT
520 kHz AM SSG 520 kHz
Receiving
Band
Alignment
600 kHz
Tracking
Input Level is
not over to
Works A.G.C.
Input Level is
not over to
Works A.G.C,
Input Level is
not over to
Alignment
1400 kHz
600 kHz AM SSG
1400 kHz | AMSSG
153 kHz
Receiving
Band 153 kHz
Input Level
is not over to
Works A.GC,
Input Level
is not over to
Works A.G.C.
Works A.G.C.
Terminal
Loop
Antenna
AM Antenna
Loop
Antenna
Loop
Antenna
Audio
V.M.
Loop Audio
Antenna V.M.
Monitor-
scope
Electric DC
Voltmeter
T3
T-12
-11
TC-1
Repeat 1, 2 and 3 to obtain minimum distortion and same time indicating of center meter at center condition,
R128
GND
R208
GND
TAPE REC (L)
arene fre |
Table 2
Maximum Poser
Height and Beasts AM
hen Wave Form:
Curve 450 kHz
1.2V+20mV
Table 3
Maximum
Output
Maximum
Output
1.2V+100mV {| Function: AM
Tracking
163 kHz 163 kHz
Alignment
Input Level
is not over to
Works A.G.C.
Loop
Antenna
TAPE REC (L)
Maximum
Output Function: AM
330 kHz 330 kHz
Input Level
is not over to
Works A.G.C.
Loop
Antenna
TAPE REC (L})
Maximum
Output
ree