- #1 [cocaine], 20-08-11 11:11
- #2 [羅密歐], 20-08-11 11:22下載operating manual，內有詳情。
https://www.manualslib.com/manual/451967/Sonic-Frontiers-Sonic-Frontiers-Sfs-40.html#manual - #3 [cocaine], 20-08-11 15:50謝謝羅蜜歐師兄回覆
已看過表示要調在錶的40刻度,但錶已壞了.
如錶的40,那麼我在他錶應是什麼數值? -
- #4 [lnchu], 20-08-11 18:12你望吓 個錶頭寫著咩字."DC MILLIAMPERES" 0-100.
- #5 [cocaine], 20-08-11 18:28InchuC-hing
是的 - #6 [羅密歐], 20-08-11 19:14偏流是40mA。
但這是透過測陰極電阻兩端的電壓，再用歐姆定律換算，才可得知。
而並非用電流表來測量的。
- #7 [cocaine], 20-08-12 00:00Thx 羅蜜歐 C-hing
這樣會拿出去找師父維修
唔該各位C-hing - #8 [羅密歐], 20-08-12 00:06又無需大費周章。打開機箱底部，找出輸出膽的陰極電阻，拍照上載便可。
- #9 [lnchu], 20-08-12 10:23
- #10 [mcc_2001], 20-08-12 11:47The bias meter looks something like below, that is a uA meter.
- #11 [羅密歐], 20-08-12 12:31#10 非也！那個是電壓表，並不是電流表。
最後修改時間: 2020-08-12 12:38:02 - #12 [羅密歐], 20-08-12 12:57若果那個是電流表，它要串聯於陰極電阻才可測量電流。但#10電路圖，它是並聯於陰極電阻的兩端，所以它測的，其實是電壓。
- #13 [mcc_2001], 20-08-12 13:26Actually，the meter movement is a 100uA meter with internal resistance of 800ohm，it shows with 100x800 uV FSD itself,. With another 2.2k in series and other calibration means. It is easy to be adopted to measure the bias current。
- #14 [mcc_2001], 20-08-12 13:39BTW, our goal is to measure the voltage drop on the 10 ohm resistor. That is 0.1 V on 10 ohm, yielded 100mA FSD. The values shown here is mainly recalled by memory, please do some final calculation by your own. Also, the meter scale has to be changed from uA to mA.
最後修改時間: 2020-08-12 13:45:55 - 返回 ...
請教Sonic Frontiers SFS 40偏壓
本身部機有獨立錶,用來調偏壓,但錶壞了.
我可用他表在機內調,但不知數值多少?
煩請各高手指點