Philips FW-R88 - Timer Functions; Alarm and Record Timer Setup; Sleep Timer

7A-2
98MHz
Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter
VARICAP ALIGNMENT
FM - VCO
DISTORTION
AM IF
AM RF
2)
108MHz
87.5MHz
check
check
7...9V
1.3...2V
8.3V ±0.2V
1V ±0.4V
152kHz ±1kHz
1)
98MHz 3142
558kHz
198kHz
1494kHz
558kHz
1494kHz
198kHz
5102
5103
2106
5111
FM
87.5 - 108MHz
(50kHz grid)
279kHz
153kHz
5122
check
LW
153 - 279kHz
(3kHz grid)
8.3V ±0.2V
1V ±0.4V
1602kHz
531kHz
5123
check
MW
531 - 1602kHz
(9kHz grid)
FM
FM
MW
MW
LW
MW
98MHz 1mV
continuous wave
98MHz 1mV
90% Left + 9% pilot
mod=1kHz
mixcoil
inside tuner
1110
450kHz
∆f=10kHz
as low as possible
6
3
1
7
7
A
FM - IF
0mV ±3mV98MHz 5107
FM
98MHz 1mV
continuous wave
1
2
A
min. distortion
4A
0mV ±2mV5114
450kHz
continuous wave
2
C
Repeat
50R
100nF
C
5112
shortcircuit pin 21
of IC7108 to ground
1)
If sensitivity of frequency counter is too low adjust to max. channel separation
(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)
2)
For AM RF adjustments the original frame antenna has to be used !
TUNER ADJUSTMENT TABLE ( TUNER 95 FM/MW/LW - version with AM-frame aerial )
max.
symmetric
f
o
max.
symmetric
f
o
Tuner 95, 3104 217 04120 (2000-02-17)
B
∆f = ±30kHz
V
RF
as low as
possible