摩改 BDP 讀碟王

djaddy · 發表於 2012-7-31 08:04

回復 26# billymud

Checked, the clock is @ 27 MHz.

billymud · 發表於 2012-8-1 11:29

回復 31# djaddy

Yuh, that's commonly used in all DVD and BDP.

djaddy · 發表於 2012-8-1 23:05

回復 32# billymud

Vdigi will not givme the transformer spec！

billymud · 發表於 2012-8-1 23:08

回復 33# djaddy
咩 transformer spec ?
係transformer, 駛鬼佢比,自己都測量到晒喇!

djaddy · 發表於 2012-8-2 10:59

回復 djaddy
咩 transformer spec ?
係transformer, 駛鬼佢比,自己都測量到晒喇!
billymud 發表於 2012-8-1 23:08

The spec for internal transformer on the circuit board.

billymud · 發表於 2012-8-2 11:37

本帖最後由 billymud 於 2012-8-2 11:42 編輯

回復 35# djaddy

師兄, 邊隻transformer呀?
相中the one? that's a switching transformer. 若預備change to 線性power supply, 你根本毋須理佢!
About the p.s., VDigi應是買OEM [ckt & parts] 匯入塊板照用, 佢engineer知到隻牛spec就奇 !

自己測量到晒d DC voltages, 代入DIY spec, 得喇! usually, 出12V, 5V, 加埋local 3.3V, 至多比埋+\-15V, (摩机)夠用有突.

djaddy · 發表於 2012-8-11 06:39

回復 13# billymud

Tested, it does get quite hot. How can I feed power to a fan?

kmissp · 發表於 2012-8-11 07:09

ivanmong · 發表於 2012-8-11 09:25

本帖最後由 ivanmong 於 2012-8-11 09:40 編輯

回復 31# djaddy
Good

,請問老派拉利線係邊度買到? thx

billymud · 發表於 2012-8-11 12:18

本帖最後由 billymud 於 2012-8-11 12:35 編輯

回復 billymud

Tested, it does get quite hot. How can I feed power to a fan?
djaddy 發表於 2012-8-11 06:39

quite hot ? the CPU or the transformer ?
if u intended to install an auxiliary dc cooling fan into the box, try below...(this would eliminate the risk of overloading the VDigi power module). Drive the fan at 7.5~9V 400ma, typically, be quiet and cool !

<< FYI only.
better to use linear power module. adjust the 7.5~9v output for optimization.

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