Kenwood TM-D700A Service Manual page 66

TM-D700A/E TM-D700A/E
WIRING DIAGRAM
| ~ LEVEL DIAGRAM
Transmitter Section
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25mV 1.6V_—sOO.68V 0.53V BomvV OdBm = +10dBm = +19dBm = +25dBm _ MODULE
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MIC
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1200bps IC804
80mV -2dBm -1dBm 14dB 21dB 26dB MODULE
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PKD O——jo~ | _9600bps
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Q304 Q307 Q309 Q310
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1200bps 1C302
= TNC 9600bps
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z Note1: Set the AG so that the microphone socket input is 3kHz
Note2: The transmit frequency is 145.0 or 435.0MHz.
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deviation at 1kHz modulation. Note3: The HI/MID/LOW switch is set to HI.
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The data communication connector input level is 3kHz
Note4: The measurements with the power meter, except for the ANT
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deviation at 1kKHz modulation for 1200bps and 2kHz deviation
connector, are the values with the APC off.
agit
at 1kHz modulation for 9600bps.
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| 106dBm 00dBm
| Q200
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IC100 -105dBm |
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1S Sebeseseschegseeguuscesues AF «—] 38.85MHz «— Osos
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AF —_— 45.05MHz | -108dBm
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-98dBm
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S © aC > a a: i ~ . "ne i) — Q203 -103dBm
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105dBm
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| sa Bea oo tego | | | | Q502 ¥ MAIN UHF
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Q508
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Q505
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Note1: The 12dB SINAD levels were plotted using a standard signal Note2: The AF levels were measured with an AF voltmeter when the
E Qo. Bag ° ae 6 Hg ol generator through a 0.01uF ceramic capacitor at each point -73dBm (50uV) standard signal generator signal modulated
0 OOS
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from the RF to the first IF.
by a 1kHz modulation frequency and a 3kHz deviation was
| 5 vi O < |
|
received and the AF output was adjusted to 0.63V/8Q by the
| [| 5X [| = 8 | AF VR. |
79 | | | | | _ 80
KENW-05154 / DRUCK 14