飛想數碼 D802C @ PEKO油宅充...

去年MCD708掛掉後~想買新的擴大機!!! 爬文爬了許久~

當時就在SMSL AD18 & FX-AUDIO D802C 掙扎~~

因為有彩色屏~買了AD18~~ 未滿一年,已經有狀況~

詢問賣家後.....決定讓他退役~~有想到的話,會補上AD18拆開圖!!

這是詢問內容~給我的感覺~我當初在淘寶買一買就好了!!!

發現露天詢問都已讀不回~改用LINE~

聲音~我的經驗是....功放晶片或相關的組件有問題~另外音量旋鈕也有問題

來了!!! 也沒什麼特別的需求~

MODEL: D802C PRO

怕濕......XDDDD

打開~~

技術參數~

接線說明~

遙控說明~

屏幕顯示

功能結構~

賣家的介紹~

TB2fZljiHArBKNjSZFLXXc_dVXa_!!2886698595.jpg

TB2LFLMybuWBuNjSszgXXb8jVXa_!!2886698595.jpg

本機~

後面~

變壓器~ FX-3205000

不是三孔插座.....畢竟不是AD18那種高級貨色

開機使用啦~~~

有繼電器!!!

通通接滿~~

遙控器~~~不過附來的電池沒電!!! CR2025

賣家送的香蕉插頭~USB線~同軸線~~~超棒的!!! 本地都不送的~

JSJ-211 庫存很久的感覺~

富島線纜公司~

金三角發燒級線材...XDDD

就這樣~~使用了幾天~~沒什麼特別的心得!!!

有繼電器~感覺不錯!! 不會出現劈一聲~

空載底躁比較沒聲音~

開機要等一下~~跑得比較慢!!!

音量調節可能分得比較細~以前轉7~13.....

現在都23起跳!!!(音量可以轉到99)電腦輸出是100%

以上!!!

2019_04_14~~~AD18~~~打開看看!!!

面板下~藏兩顆!!!

前面板的背面~~

機殼~~~

後面~~

背板~

有跟沒有一樣的保固!!

18AWG線材~

主機板~~~~~沒洗乾淨的感覺~~

HC393 ED55004 TnD14 ( The ’HC393 devices contain eight flip-flops and additional gating to implement two individual 4-bit counters in a single package)

3CCE2YTG4 TAS5508C ( TAS5508C. 8-Channel Digital Audio PWM Processor ) +

N5532 ( The NE5532, NE5532A, SA5532, and SA5532A devices are high-performance operational amplifiers combining excellent DC and AC characteristics. )

TASI020B( TASI020B Datasheet, TASI020B PDF. Datasheet search engine for Electronic Components and Semiconductors. )

LC244A ( SN74LVC244A Octal Buffer or Driver With 3-State Outputs)

CIRRUS 8422CN ( 24-bit, 192-kHz, Asynchronous Sample Rate Converter with. Integrated Digital Audio Interface Receiver. )

3010KM SK 90Y ( The SI-3000KM series are series regulator ICs which use a hyposaturation-type PNP bipolar transistor in the power section )

N5532

NICHICON FW(M) 3300UF 25V

85度C

電容器周圍~

IAP 15W4K58S4 ( IAP15W4K58S4 connect directly with D-/D+ of USB )

電容~電感

S.M.S.L AD18 V2.3 2017/10/25

CSR A64215 ( CSR 64215 QFN is a single-chip Bluetooth ROM audio solution for rapid evaluation and development of .)

CIRRUS 5341CZZ ( CS5341-CZZ Cirrus Logic Audio A/D Converter ICs 105dB 192 kHz Multi-Bit Audio ADC datasheet, )

散熱片~~

沒放雲母片!!! 過熱擊穿性很大!!!MCD708~都有放!!!

74TTI CF24G4 TAS5342A ( The TAS5342A is a high-performance, integrated stereo digital amplifier power stage designed to drive a 4-Ω bridge-tied load (BTL) at up to 100 W per channel ... )