又開兩個盒 (Magic TV 技術失誤 + 處理失當@#21)

MarkMak

剛剛壞咗部 Magic TV 5000D，老細又話要睇造皇者大結局，好窮呀

timmywan

你又開箱

rklpoon

" so quick hand"

Don't dump the broke 500D, repair it and use or sell it.

粟米湯

老細緊係要好招呼啦

lamborghini436

買部7000d玩埋magic play囉

agnes_b

你連牛都換埋，咁都值得你捱窮一日丫

Sunny

rklpoon 發表於 2012-9-15 23:38
" so quick hand"

Don't dump the broke 500D, repair it and use  ...

我的5000D 也是剛壞那裡可以修理？

Sunny

agnes_b 發表於 2012-9-16 01:44
你連牛都換埋，咁都值得你捱窮一日丫

師兄 我以前也買過這隻牛比MTV用 好熱！最後寫電郵問台灣廠，他們回答不適合MTV用會加快MTV壞的！

rklpoon

Sunny 發表於 2012-9-16 06:42
我的5000D 也是剛壞那裡可以修理？

科技園:- 6 Science Park West Ave集成電腦中心607室, 大學站272K巴士或 沙田站27號小巴,  星期1-5 朝9晚,星期6 朝9午1.

http://pixelmagicsystems.com/contact-details.html

如想即日取回,最好上午—早去到,放低被佢地,修理部檢查完打比你報价,价岩即整,整完call你去取.

當日維修帖子-#15

http://www.hiendy.com/hififorum/ ... =1&authorid=324

以我部3100d計,換火牛$150,換底板$400(唔知有無記錯或加价),最好打電話check清楚(我覺得整曬以上兩項都係6舊水樓下,平過買部全新,而且個人認為机頂盒佢最靚,亦最貴,係遠水路d gei),另新換零件保用一個月.

另你可用速遞公司代你交收(慳番d車錢時間,除苯有精,我下次維修.....)

felixk

我都係叫速遞去

savage121212

佢哋真係好快攪掂！我上晝11點到放低，下晝2點幾有得攞，沙田火車站落車，27號小巴約十分鐘就到，都唔係咁唔方便！

agnes_b

Sunny 發表於 2012-9-16 06:45
師兄 我以前也買過這隻牛比MTV用 好熱！最後寫電郵問台灣廠，他們回答不適合MTV用會加快MTV壞的！ ...

我都係知呢隻牛會好熱...所以係大陸搵過隻牛牛,但就唔多熱..效果ok

MarkMak

Sunny 發表於 2012-9-16 06:45
師兄 我以前也買過這隻牛比MTV用 好熱！最後寫電郵問台灣廠，他們回答不適合MTV用會加快MTV壞的！ ...

你隻牛係唔係13V, 4A

galleryng

最多窮一日

Sunny

MarkMak 發表於 2012-9-16 10:52
你隻牛係唔係13V, 4A

是的13A....

現在我用這個，非常靚！但我想upgrade兩個出頭, 師兄有興趣可以轉讓給你！



但要下星期，原因明天要出差，星期六晚才回來！

oohs

有無咁橋，我部 mtv5000d又係上星期5壞，正打算整機 or 買另一部。

BoB182

窮都係窮一日啫

chinkc

老細緊係要好招呼啦

pan

agnes_b 發表於 2012-9-16 10:33
我都係知呢隻牛會好熱...所以係大陸搵過隻牛牛,但就唔多熱..效果ok  ...

如果7000型號,可以試下用省電模式
待機時隻牛唔會熱

MarkMak

D兩日send咗email去台灣問，佢回覆話Kingrex PSU MKII 熱係正常的，而且已用 Magic TV 測試咗九個月都沒有問題，內容如下：

Ask:
I live in Hong Kong. I am using the Kingrex PSU MKII (13V, 4A) for my TV box - Magic TV 7000S mini. But, the surface of Kingrex PSU becomes very hot after my TV box is switched on for a while. Is it normal? The original transformer of my TV box is 12V, 4.16A. Thanks.


Reply from Kingrex:
Dear Mark Mak

Thanks for your question. This is Christine of KingRex Tech.

About the 4A/13V PSU MKII, the heat of the front panel is high for sure. Because KingRex use the front panel as heat sink, the temperature might reach 70oC if the power keep continously outputing over 80% power demand or 100%.

Why would PSU MKII 4A in such high temperature we still treat it as normal? It's the linear power characterstic.

All of our 13V PSU MKII are 13V /4A. However, the Linear Power is in floating output. It's better to adapt the amplifier products.

Due to the power demand of the amplifier product will float by the dynamic (While dynamic demand is strong, the instant DC demand will go up.  While dynamic demand is weak, the instant DC demand will go down.) The power demand will go up & down - we call it floating.

Due to the working mode is quite different to linear power & switching power. The switching power normally can 100% output continously. However, the linear power only output 25% output continouly & 100% output in sudden demand.  Magic TV needs continously output.

But the temperature is acceptable, it won't cause any damage or short for the PSU MKII itself.

Please just leave the PSU MKII in good air cycle area and do not place it in any place at thick cloth or warm area.


Ask:
Dear Christine,

Thanks for reply.

That means,

1. This is both OK for the Kingrex PSU and Magic TV, even my Magic TV is 12V, not 13V.

2. No hazard to the life of Kingrex if operating in high temperature for a long period.

Am I right?

Regards,
Mark


Reply from Kingrex:
Dear Mark

Yes, you are right.

We arleady test Magic TV for over 9months w/ new PSU MKII 4A. They are both all fine.

1. higher voltage in 13V is acceptable due to all electronic parts will all have their own tolerance. It will only help the Magic TV can have better performance.
   The sound will be more powerful.

2. Yes, inside the PSU MKII there are two fuses inside. It will auto protect the backward machine and itself for broken the fuse by sudden high power output.

best regards,

Christine Wu
KingRex Technology Co., LTD