Tuner 95 Bis Adjustment Table (Fm, Mw, Lw With Frame Antenna) - Marantz SR3000 Service Manual

TUNER 95 bis Adjustment Table (FM, MW, LW with Frame antenna)

Waverange Input frequency
VARICAP ALIGNMENT
FM (50)
87.5 - 108 MHz
MW (9)
531 - 1602 kHz
LW (3)
153 - 279 kHz
FM – DETECTION
98 MHz 1mV
continuous wave
FM
short pin 21 (IC7101)
FM – VCO
98 MHz 1 mV
FM
continuous wave
DISTORTION
98 MHz 1 mV
90 % L +
FM
9 % pilot
mod = 1kHz
AM – IF
∆f = 10kHz
Low as possible
Swept signal
MW
continuous wave
AM - RF
Mod = 1kHz
MW
30 % AM
1494 kHz
mod = 1kHz
LW
30 % AM
* Signal send via a frame antenna
(..) = tuning grid in kHz
Input
A
to ground
A
A
450kHz
100nF
50E
C
450kHz
558kHz
B
198kHz *
7D-2
Set tuned to Adjust
108 MHz check
87.5 MHz check
1602 kHz 5123
531 kHz check
279 kHz 5122
153 kHz check
98 MHz 5107
98 MHz 3142
mixcoil
98MHz inside
Tuner
1110
5111
MW 5112
5114
558kHz 5102
7
1494kHz 2106
198kHz 5103
repeat
Output Scope / Voltmeter
7 ... 9V
1.3 ... 2V
8.3V ± 0.2V
6
1V ± 0.4V
8.3V ± 0.2V
1V ± 0.4V
1
0mV ± 3mV
2
3 152kHz ± 1 kHz
Distortion
4
minimum
symmetrical and
7
max. height
1
0mV ± 2mV
2
MAX
MAX
adjtable for 3104 217 04121/04341