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积分258在线时间335 小时最后登录2020-3-26阅读权限50精华0 
 
 
UID469109帖子224精华0经验258 点金钱190 ¥注册时间2012-2-3 | 
 
 发表于 2018-11-22 13:53
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| ,终于找到高手了,这下应该有希望了。刚整了一个金嗓子109V,日频需改国频(美频).没电路图,只有一些芯片型号Accuphase 426-0020-00  MCU AKM AK93C45  8Kbit Serial CMOS EEPROM JRC NJM79M12A  3-Terminal 0.5A Negative Voltage Regulator (-12V) JRC NJM360D  高速コンパレータ JRC NJM2904D  Single-Supply Dual Operational Amplifier SANYO LA3401  VCO Non-Adjusting PLL FM MPX NEC C2531CS  Dual FET NEC uPC24M05  3-Terminal Low Dropout Voltage Regulator (+5V) NEC uPC24M12  3-Terminal Low Dropout Voltage Regulator (+12V) NEC uPC4570HA  Dual Ultra Low-Noise, Wideband, Operational Amplifier Toshiba TA7060AP  FM IF Amplifier Toshiba TA7302P  FM IF Amplifier Toshiba TA7310P  OSC & Mixer Toshiba TA8129Z  FM IF System (Differential Peak Detection) Toshiba TC4053BP  Single 8-Channel Multiplexer/Demultiplexer Toshiba TC4584BP  Hex Inverting Schmitt Trigger Toshiba TC74HC04AP  Hex Inverter Toshiba TC74HC14AP  Hex Inverting Schmitt Trigger Toshiba TC74HC86AP  Quad Exclusive OR Gate Toshiba TC74HC4060AP  14-stage binary ripple counter with oscillator Toshiba TC9172AP  High Speed PLL with Built-In Prescaler | 
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