Icom FP-561, Руководство по обслуживанию

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4-2 FP-561 TRANSMITTER ADJUSTMENT
OUTPUT
POWER
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT LOCATION UNIT ADJUST
1
2
• Connect a transducer to the
[TRANSDUCER] connector.
• Mode : [SOUNDER]
• Frequency : [H]
• Depth range : 640 m
• Frequency : [L]
MAIN Connect an oscillo-
scope between pin
3 and pin 5 of J2. 880–1320 Vp-p
at maximum wave
point Verify
Verify
4-4 FP-561 WATER TEMPERTURE ADJUSTMENT
WATER
TEMPERATURE
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT LOCATION UNIT ADJUST
1 • Connect a 10 k
Ω
resistor
between pin 6 and pin 7 of the
[TRANSDUCER] connector J2.
Display 25.0 ˚C LOGIC R131
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
4-3 FP-561 RECEIVER ADJUSTMENT
RECEIVE
SENSITIVITY
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT LOCATION UNIT ADJUST
1
2
3
• Mode : [SOUNDER]
• Frequency : [H]
• Depth range : 5 m
• STC : [1]
• Connect a standard signal gener-
ator to the [TRANSDUCER] con-
nector J2 via the coupler and set
as:
Fequency : 200 kHz
Level : 1 mV (–47 dBm)
• Frequency : [L]
• Set an SSG as :
Frequency : 50 kHz
Level : 1 mV (–47 dBm)
• Set an SSG as :
Frequency : 50 kHz
Level : 100 mV (–7 dBm)
MAIN Connect a DC volt-
meter or oscillo-
scope to the check
point “RSSI”. Maximum DC voltage MAIN L1
L6
R99