Denon AVR-3801 - Adjustment Procedures; Tuner Section Alignment

FM/MPX ALIGNMENT
Input Output Adjust
Step
Alignment
Item
Tuning
Frequency
Setting
Type
Frequency
Input Level
Modulation
Coupling Type
Connect to
Points Adjust to
Remarks
1
Tuning Center
98.1 MHz FM SSG 98.1 MHz 60 dBµ None
Antenna
Terminal
Digital
Voltmeter
TP102
(JV36-JV67)
T502 ± 50mV
Function : FM
Mode : Auto
2
Separation
98.1 MHz FM SSG 98.1 MHz 60 dBµ
Stereo (L)
1KHz 100%
Antenna
Terminal
AC
Voltmeter
AUDIO
OUT
Terminal (R)
VR502
Maximum
Separation

3
Signal Level
98.1 MHz FM SSG 98.1 MHz 20 dBµ Off
Antenna
Terminal
  VR501
Light
“TUNED”
FLD
Character

AM ALIGNMENT
Output Adjustment
Step
Alignment
Item
Frequency Input
Type
Connect to
Points Adjust to
Remarks
1
IF 
IF SWEEP
(Input level is not over to work A.G.C.)
Oscilloscope
IC502 12Pin
T503
Maximum height and best
symmetry curve
ADJUSTMENTADJUSTMENT
Tuner SectionTuner Section
CONNECTION DIAGRAM OF MEASURING INSTRUMENTSCONNECTION DIAGRAM OF MEASURING INSTRUMENTS
'' FM FM
'' AM AM
STEREO
MODULATOR
FMSSG
DIGITAL
VOLTMETER
TP102
T502
VR501
VR502
IC502
75
Ω
1
1U-3318-5 TUNER UNIT
T503
IC502
1
12
Pin
GND
AM
AM IFOUT
OSCILLOSCOPE
1U-3318-5 TUNER UNIT
1111
AVR-3801AVR-3801