Change the unknown brand Schottky diode to ON-SEMI.
5V section:
OLD : MBR10100 (10A,100V unknown brand)
New : MBR20100 (20A,100V ON-SEMI)
12V section:
OLD : MBR10150 (10A,150V unknown brand)
New : MBR20150 (20A,150V ON-SEMI)
Lower heat dissipation from diode.作者: kk_ho 時間: 2009-4-18 01:59 標題: Re: 發燒活動 : HIMEDIA HD100, HD8-TH demo show Switching mode power supply modification PART II
Change the Fairchild 10N60 to Infineon CoolMOS 11N60.
Just 1A rating more than Fairchild, Infineon coolmos RDS is much much lower than Fairchild
Result --> Cool (Not too hot than previous)
20-Apr update:
Infineon IPA6R125 600V / RDS on = 0.125 ohm, (25A)
Infineon SPA07N60C3 600V / RDS on = 0.6ohm (7A), still better than default one.
Infineon IPP6R299 600V / RDS on = 0.299ohm, (11A)作者: kk_ho 時間: 2009-4-18 02:17 標題: Re: 發燒活動 : HIMEDIA HD100, HD8-TH demo show Testing material: (18-Apr)
WAV file:
What a difference aday made @ 44.1/16
What a difference aday made @ 44.1/24
Testing the output using AV amp DAC and Pure 24/192 Cirrus Logic CS43122 DAC.作者: kk_ho 時間: 2009-4-18 13:46 標題: Re: 發燒活動 : HIMEDIA HD100, HD8-TH demo show Heatsink作者: samuelsum 時間: 2009-4-19 14:36
kk sir,
好耐無見, 錯過了周六的活動; 因為忙著
想問周五晚玩咩東東...我都想抽時間開開眼界
謝謝作者: kk_ho 時間: 2009-4-19 15:03
Sam,
一部可播放高清檔案(BDMV, TS, MKV, etc..)及可接收地面高清廣播的播放機
當然係比較摩改前後的分別
到時見
Fever令你滅亡, 必先令你瘋狂作者: pooh931 時間: 2009-4-20 03:21
kk sir 請問摩一摩部hd100要幾多盤川?作者: kk_ho 時間: 2009-4-20 12:19
We will announce at this Friday. First modifcation class will reserve for people who is coming to the show.作者: tommykp 時間: 2009-4-20 17:43
Hi KK,
周五晚, 我都應該會過來作者: kk_ho 時間: 2009-4-21 15:22
Aggressive price will be announce at Friday.作者: cat_playga 時間: 2009-4-21 22:57
kk兄, 想問問下星期會唔會再有session?作者: kk_ho 時間: 2009-4-21 23:59
Sorry, the ans is NO.
That two machine will send to HDAV to do the AB comparision with their AV amp and TV.
May be, I can ask Yuki to have openday test..........
THX作者: kk_ho 時間: 2009-4-22 23:49 標題: Re: 發燒活動 : HIMEDIA HD100, HD8-TH demo show Additional work on heatsink.
32'C at 1 HDD full load. (Room temperature 25'C)作者: pooh931 時間: 2009-4-22 23:50
kk sir 我都黎睇下先作者: tpbear 時間: 2009-4-23 13:38
我想報名呀，請問可以嗎?作者: billy250 時間: 2009-4-23 19:31
that's good
see you at firiday night!!
thx KK作者: kk_ho 時間: 2009-4-23 21:06
TPBEAR,
See u at Friday.
THX, Z11作者: tpbear 時間: 2009-4-23 22:53
但係我應該黎幾點果場呀??作者: kk_ho 時間: 2009-4-23 22:55
As you like作者: kk_ho 時間: 2009-4-23 23:36
Comment on DSIX circuit:
I am the first time to put this circuit on Dolby Digital / DTS output. The feeling is, all of the "information" is increase and depth. Look like DTS HDMA.
You can try this experience at tonight. Also you can compare the default Digital output VS DSIX digital output.
Q2. Very interested in your new toy! Can I use Himedia H100 as an external DAC to play the WAV files in my computer i.e.
like the Cambridge or Nuforce DAC and using USB as a link?
A2. This machine is from himedia, please check the function from HK distributor. 金河國際貿易有限公司
九龍 深水步欽州街 65號 榮業商業大嵆 4/F 403室
TEL:2728 0411 余先生.
The Digital audio signal is output via "S/PDIF"(Optical/coaxial) or HDMI port only. The USB port cannot output audio signal.
作者: KIT0629 時間: 2009-4-25 15:16
kk sir:
拱幾時開始
岩時間我想Join plan c
我係昨晚遲到,飲汽水果個
thx作者: tpbear 時間: 2009-4-25 15:26
kk Sir:
email o左你, 等你回覆作者: billy250 時間: 2009-4-25 16:55
hi KK sir!
wait your e-mail :作者: kk_ho 時間: 2009-4-25 17:04
1-2- May
10:00AM to 10:00PM, 2 days.
Min = 8 people. Max = 14 people.
admin will annouce this at today.作者: KIT0629 時間: 2009-4-25 18:03
Oh no
一號黎吾到了,等下次啦!作者: Yatlee 時間: 2009-4-25 21:46
Ok sir, is it possible to have my hd100 modified by you? I don't have the time or skill to diy. Thanks.作者: kk_ho 時間: 2009-4-25 22:17
All,
HD100/8 DIY course : 1-2 May 10:00-22:00 (2 days)
Min quota : 8, Max quota : 14
HD100/8/MTV3000/5000/EIGHT/ upgrade by KK:
Please register here and leave your email, first come first serve.
Max quota : 5 jobs / week. (First come first serve), don't email to me. I will send a email to you to confirm the charge.
THX作者: Yatlee 時間: 2009-4-25 22:18
Thanks KK Sir.. Let me know when you have time to do mine.作者: tpbear 時間: 2009-4-25 22:49
KK Sir
你仲未覆我呢~作者: billy250 時間: 2009-4-25 22:53
hi! KK ,I want you upgrade HD100 for me with plan C,
my email (billy250@suihing.com)
(billy250@ymail.com)作者: pooh931 時間: 2009-4-25 23:06
要幾多錢呢請問?作者: kk_ho 時間: 2009-4-25 23:32
Tpbear,
THX作者: KIT0629 時間: 2009-4-25 23:53
hi! KK sir ,I want you upgrade HD100 for me with plan C,
my email (kit0629@yahoo.com.hk)作者: cl1702 時間: 2009-4-26 00:36
Hi, I am interested in the modification. Can you email me the charge for Plan D and E. My email address is cl1702@gmail.com. Many thanks.作者: kk_ho 時間: 2009-4-26 01:03
Power consumption of Western Digital HDD model no WD10EADS-00L5B1
1.0TB size.
Average Read Current
12V @ 0.23A = 2.76W
5V @ 0.56A = 2.8W
作者: kk_ho 時間: 2009-4-26 01:56
Power consumption of Seagate HDD model no:ST31500341AS
1.5TB size.
Average Read Current
12V @ 0.55A = 6.6W, Peak start current is 2A, around 2 seconds
5V @ 0.51A = 2.55W, The current is varying from 0.25A to 0.51A max.
作者: pooh931 時間: 2009-4-26 02:37
450 包d乜呢 kk sir?作者: kk_ho 時間: 2009-4-26 02:55
Basic starter components for mainboard and tuner board.作者: pooh931 時間: 2009-4-26 04:43
Plan D and E 幾多錢? kksir作者: Yatlee 時間: 2009-4-26 06:57
Hi KK, I forgot to mentioned. I like to have Plan C done by you. my email yathlee@gmail.com作者: kk_ho 時間: 2009-4-27 23:17
Some people asking 100uF / 400V is enough for this application or not. (Around 35W at 2 HDD full load).
Let prove here:
Refer to the equation: Assume support world wide voltage (85-220V)
Ans : Around 54uF is need. Therefore 100uF is much enough.作者: tszngai 時間: 2009-4-28 13:18
Hi KK Ho sir,
Plan A to E 那處有詳情? send條link睇下啦!
請問正買供電電源底板(有插加比散熱扇用的)幾$$$呀!
Thanks a lot!
my email: tszngai2003@yahoo.com.hk
Mr.Chan作者: kk_ho 時間: 2009-4-28 22:34
tszngai
請問正買供電電源底板(有插加比散熱扇用的)幾$$$呀!
Are you talking about the "BLUE PCB"? it is Linear PSU and with DSIX inside.作者: dunno 時間: 2009-4-29 00:09
Hi K K Sir,
Can you help me modify the HD100 to plan C, or maybe plan D? Please email me the cost and how I can get you the machine for modification. Thanks作者: kk_ho 時間: 2009-4-29 01:25
Dunno,
Please check email
See u作者: kk_ho 時間: 2009-4-29 01:37
Left : Alum
Middle : Larger alum + Cooling fan
Right : Pure Copper + tiny Cooling fan
Are you talking about the "BLUE PCB"? it is Linear PSU and with DSIX inside.[/quote]
Hi KK Ho sir,
小弟想買如附上相片中的整塊PCB,因小弟想改善電源及加Cooling fan for HDD.
仲有想知道Plan A to E 有詳情睇.
Many Thanks!作者: kk_ho 時間: 2009-4-29 11:55
tszngai
請問正買供電電源底板(有插加比散熱扇用的)幾$$$呀!
OK, may be we call this Plan F
This is modify from the original SMPS board. You can take this board only on 30-Apr.
I modify it to you and take it back on same night.
Special charge (not too much include components, and 2 extra fan to you)作者: kimkuemok 時間: 2009-4-29 17:04
KK Sir
Please inform me the modification charges of Plan C, Plane D and Plan D
if the modification is done by you
Thanks作者: kk_ho 時間: 2009-4-29 21:57
Aloka,
Please check email作者: tszngai 時間: 2009-4-30 17:59
[quote:de80e095f2="kk_ho"]tszngai
OK, may be we call this Plan F
This is modify from the original SMPS board. You can take this board only on 30-Apr.
I modify it to you and take it back on same night.
Special charge (not too much include components, and 2 extra fan to you)[/quote]
Hi KK Ho sir,
先講聲多謝先, 我都想上來你處見識見識!
今天時間不許可呀? Sorry!
因工作時間很不定, 請問仲有什麼時間可到你處改善電源板呀?
其實有無整塊另購的電源板買架,我很想跟你買全塊已改好的電源板?
仲有想問Plan A to E 那處有詳情呀? send條link睇下啦!作者: kk_ho 時間: 2009-4-30 18:39
先講聲多謝先, 我都想上來你處見識見識!
今天時間不許可呀? Sorry!
// you are welcome
因工作時間很不定, 請問仲有什麼時間可到你處改善電源板呀?
// Next course is dedicated for Kaiboer model.
其實有無整塊另購的電源板買架,我很想跟你買全塊已改好的電源板?
// No, you can ask Mr.Yue (himedia shop) to purchase a new PSU.
仲有想問Plan A to E 那處有詳情呀? send條link睇下啦!
// Pls check email later.作者: cl1702 時間: 2009-5-2 17:09
Hi KK, I am interested in Plan C to E, can you please send me the relevant charges. My email address is cl1702@gmail.com. In fact I have made the same inquiry last week but haven't received your reply yet. Just to make myself clear, I am hoping to have HD100 modify by your goodself. Thanks.作者: billy250 時間: 2009-5-15 22:17
sorry KK ! that is late report about mod plan C on himedia H100!!
first ,it improve for picture in dark detail,special for HDTV.Because my family tell why suddenly sharp! ops:
second,sound is more powerful in movie and when you listen mp3 it will more better than before! :
the major is heat problem,is really reduce to you can touch harddisk after you shut down now.I think it become more reliable! \/ \/作者: aiken 時間: 2009-5-17 19:25
Hi,kk_ho Sir
我剛剛成為左HD100用家,對mod機plan好有興趣,可唔可以send有關Plan A to E的詳情給我?另外遲D仲會唔會再有mod機班開呢?
thanks!作者: kk_ho 時間: 2009-5-17 21:15
Please check email.作者: dkam 時間: 2009-5-18 12:34 標題: New Course Dear KK,
I am a HI-fi & AV fever guy but I have no knowledge in modification. I have great interst in Hi-meida 100 and I saw their will be a great room area to modify this toy. I will buy this toy n hope not only modify the electric supply but also the audio. Can we replace some cap to solen or wima n use some silver cable? I hope u can tailor made to modify this toy for me.作者: kk_ho 時間: 2009-6-8 13:44 標題: Re: Hi- Media 100 Please check email box.作者: super_driver 時間: 2009-6-10 10:07
Can you pls send to my email box too the details of Plans A to E?
THX作者: yonnie2 時間: 2009-6-16 01:06
Hi,kk_ho Sir
剛剛入手HD100, 麻煩send AtoE 餐內容及價錢給我, 謝謝!作者: kk_ho 時間: 2009-6-16 10:45
Admin will send the price to you, but limited QTY (3 sets remains).作者: JR6402 時間: 2009-6-16 19:43
Dear kk_ho sir,
Please send me the charge of price for modify my HD100.......Thanks a lot !作者: kk_ho 時間: 2009-6-17 11:00
A detail modification class schedule and price (plan C only) will be announce this week.
5 people max per class.作者: JR6402 時間: 2009-6-17 15:03
KK_ho Sir, may i know where & when ??作者: happly 時間: 2009-6-28 13:38
KK_ho Sir
可唔可以send有關Plan A to E的詳情給我?另外遲D仲會唔會再有mod機班開呢?
(happly003@yahoo.com.hk)作者: kk_ho 時間: 2009-6-28 22:50
吾到十二月吾會再搞摩HD100機班啦, 衹會 :
1. Full set Plan C components $1300, modify by yourself at home
2. Plan C 援摩全餐, $2300, 上門面議, 約三小時作者: happly 時間: 2009-6-28 23:59
1. Full set Plan C components $1300, modify by yourself at home
呢個plan係咩意思～係咪淨改機同包料?(要自己回家改?)作者: kk_ho 時間: 2009-6-29 00:52
$1300 淨料, 自己回家改作者: chanps 時間: 2009-7-1 09:49
KK Sir
Please inform me the modification charges of Plan E
if the modification is done by you
Thanks a lot作者: kk_ho 時間: 2009-7-2 18:02
Only Plan C available
:
ops: 
/ \