Kenwood TK-90, Руководство по обслуживанию

Страница: 38 / 142

TK-90
38
Ref. No. Use / Function Operation / Condition
D13 Switching ON when receiving under
1.605MHz is selected
D14 Switching ON when BPF of
10.5~14.5MHz is selected
D15 Switching ON when BPF of 2.5~4.1MHz is
selected
D16 Switching ON when BPF of 4.1~7.5MHz is
selected
D17 Switching ON when BPF of 7.5~10.5MHz is
selected
D18 Switching ON when BPF of 1.605~2.5MHz
is selected
D19 Switching ON when BPF of 14.5~21.5MHz
is selected
D20 Switching ON when BPF of 21.5~30MHz is
selected
D21 Surge absorption For ATT changeover relay
D101 Switching ON during transmission
D102 Switching ON when receiving preamplifier is ON
D103 Switching ON when receiving preamplifier is OFF
D104 Switching 1/2: ON when receiving
preamplifier is OFF
2/2: ON when receiving
preamplifier is ON
D105 Switching LO1 path transmission/reception
changeover
D106 Switching 73.095MHz IF path transmission/
reception changeover
D107 Switching IF path transmission/reception
changeover
D181 Reverse current AGC voltage control
prevention
D182 Switching IF path transmission/reception
changeover
D183 Mixer RX 2nd / TX mixer
D184,185 Switching IF path transmission/reception
changeover
D186 Switching On when mute If amplifier
D187 Reverse current AGC voltage control
prevention
D251 Switching ON when option filter is selected
COMPONENTS DESCRIPTION /
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