Kenwood TK-3148 Service Manual

Also see for TK-3148: Service manual

Contents

TK-314840• 调整手持机的准备在进行调整手持机之前，将主机与电源连接。无论何时调整发射部分，主机必须连接到合适的假负载（或功率仪）。在整个调整过程中，扬声器输出必须经过16Ω假负载并被连接到一个交流电压表和一个音频失真测试仪或一个SINAD测量仪。• 手持机调整（将手持机置于调整模式）信道显示在 LCD 上。按照调整所需设定信道。Press [S], now in tuning mode. Use [2 B] button to writetuning data through tuning modes, and channel selector knobto adjust tuning requirements (1 to 256 appears on LCD).Use [C 3] button to select the adjustment item throughtuning modes. Use [A] button to adjust 3 or 5 point tuning.And use [Side 2] button to switch between Wide/Narrow.LCD display (Test mode)channel No. Signalling No.1 1LCD 显示（测试模式）信道号码信令号码1 1注释用户必须调整上述所有信道中的频率，即使第 3 行的信道频率低于 TK-3148 的规格。信令号码 RX TX1 无无2 无 100Hz 方形波3 QT67.0Hz QT67.0Hz4 QT151.4Hz QT151.4Hz5 QT210.7Hz QT210.7Hz6 QT250.3Hz QT250.3Hz7 DQT023N DQT023N8 DQT754I DQT754I9 无 DTMF 音频 910 无单音 1200Hz（HSD 输出）11 无单音 1200Hz（调制解调器输出）12 无单音 1800Hz（调制解调器输出）13 无 FFSK（PN 形式）14 FFSK（代码） FFSK（代码）NoteYou must adjust the frequencies in all channels as shownabove, even though the channel frequencies in the 3 row arebelow the specifications of the TK-3148.SignallingSignalling No. RX TX1 None None2 None 100Hz Square wave3 QT 67.0Hz QT 67.0Hz4 QT 151.4Hz QT 151.4Hz5 QT 210.7Hz QT 210.7Hz6 QT 250.3Hz QT 250.3Hz7 DQT 023N DQT 023N8 DQT 754I DQT 754I9 None DTMF tone 910 None Single Tone 1200Hz(HSD OUT)11 None Single Tone 1200Hz(MODEM OUT)12 None Single Tone 1800Hz(MODEM OUT)13 None FFSK(PN pattern)14 FFSK(CODE) FFSK(CODE)• Preparations for tuning the transceiverBefore attempting to tune the transceiver, connect the unitto a suitable power supply.Whenever the transmitter is turned, the unit must beconnected to a suitable dummy load (i.e. power meter).The speaker output connector must be terminated with a16Ω dummy load and connected to an AC voltmeter and anaudio distortion meter or a SINAD measurement meter at alltimes during tuning.• Transceiver tuning(To place transceiver in tuning mode)Channel appears on LCD. Set channel according to tuningrequirements.按[S]键进入调谐模式。使用[ B]键通过调谐模式写入调谐数据，信道选择器按钮调整调谐要求（1 到 256 出现在显示器上）。使用[C ]键通过调谐模式选择调整的项目。使用[A]键调整3或 5 点调谐。并使用 [侧面 2] 按钮在宽／窄之间切换。信令ADJUSTMENT / 调整