Adjustment; Connection Diagram Of Measuring Instruments; Fm Alignment; Tuner Section - Denon AVR-1404 Service Manual

ADJUSTMENT

Tuner Section

CONNECTION DIAGRAM OF MEASURING INSTRUMENTS

FM

FM ALIGNMENT

Tuning
Alignment
Step Frequency
Item
Setting
Center 98.1MHz
1
Adjustment (98.0MHz)
98.1MHz
2 Distortion
(98.0MHz)
3
98.1MHz
4 Signal Level
(98.0MHz)
AM
AM ALIGNMENT
Alignment
Step
Item
1 Signal Level
T402 T403
R471
IC402
VR402
TUNER B'D
Input
Type Frequency
Level
FM SSG 98.1MHz 60dB
FM SSG 98.1MHz 60dB
FM SSG 98.1MHz 20dB
R471
Frequency Input
999 (1000)
AM SSG
kHz
75ohm
Input
Modulation Coupling
Mono Antenna
1kHz 100% Terminal
Mono Antenna
1kHz 100% Terminal
Repeat Steps 1 and 2
Antenna
OFF
Terminal
T402 T403
IC402
VR401
TUNER B'D
Output
Type Connect to Points
VR401
7
AVR-1404/484
STEREO
MODULATOR
FM SSG
Digital
Voltmeter
Output Adjustment
Type Connect to Points
Digital
R471 T402
Voltmeter
Distortion Output
T403
Meter Terminal (L)
Light "TUNED" on
VR402
FL Display
Adjustment
Adjust to
Light "TUNED" on SSG OUTPUT
FL Display 74dB (EMF)
7
Adjust to
50mV
Minimum
Distortion
+14
20 dB
−10
Remarks