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[#111] etsang3 修理好聲"山水"機一部    
各位兄台,因為忙,過兩日先POST整機相比大家分享,今次"快"修,因為"工多藝熟",一開波就換哂電容(橙色電解,樹脂封底,全部打柴!!!),仲有一粒輸入FET被打到漏電內傷,自我製造"啪啪"噪音。

KinSukSuk 兄,你的AU9500先天足內力夠,我每粒管BIAS能調大到100mA也十分安全。你應該發覺它現在"通透又有勁",有甚麼聽後感請反饋分享,謝謝。
etsang3
個人訊息 會員
218.xxx.xxx.87
2009-08-10 23:59
[#112] etsang3 修理好聲"山水"機一部    
致各山水用家,若玩"膽前石後"者,請check清楚"膽前"沒有漏DC,否則一駁山水後級輸入端就會被"打柴"。
etsang3
個人訊息 會員
218.xxx.xxx.87
2009-08-11 00:03
[#113] etsang3 修理好聲"山水"機一部    
etsang兄,新手一問,點check膽前有沒有漏DC? THANKS!
chi1673
個人訊息 會員
116.xxx.xxx.208
2009-08-11 09:13
[#114] etsang3 修理好聲"山水"機一部    
最好用"指針"型他表,DC 5V 檔去度,又有DC出"指針"會擺起好多。
etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-11 13:22
[#115] etsang3 修理好聲"山水"機一部    
Dear Estang3: I have a Estern Electricity power amp. It has no sound, I guess because one of the tubes no longer worked but I continued using the amp without notice. Do you think you can help fixing it? If so, how much do you think it will cost? You can email your reply to jameswong2004@gmail.com if you want. Many thanks in advance.
jameswong2002
個人訊息 會員
210.xxx.xxx.72
2009-08-11 18:39
[#116] etsang3 修理好聲"山水"機一部    
分享圖片

etsang3
個人訊息 會員
219.xxx.xxx.217
2009-08-12 02:28
[#117] etsang3 修理好聲"山水"機一部    
分享圖片

etsang3
個人訊息 會員
219.xxx.xxx.217
2009-08-12 02:29
[#118] etsang3 修理好聲"山水"機一部    
曾三哥你都係越夜越精神一族。
cobra
個人訊息 正式會員
61.xxx.xxx.50
2009-08-12 02:49
[#119] etsang3 修理好聲"山水"機一部    
cobra 兄,

好眼呀其實,我收工收得夜嘛!
etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-12 09:12
[#120] etsang3 修理山水AU-D9    
The AU-D9 is back ! Take more care to fix this time.

(1) changed the circuit to better match to use wide bandwidth power transistor

(2) replace all old leakage driver (A968/C2238)

(3) replace leak ecap to MKP as much as possible

(4) Find out more cracked old soldering and fix them (terrible at the Preamp broad)

Here are the photos for sharing.

- Modified the circuit

etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-12 14:35
[#121] etsang3 修理山水AU-D9    
Replace leak caps

etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-12 14:35
[#122] etsang3 修理山水AU-D9    
Replace power supply old ecaps.

etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-12 14:36
[#123] etsang3 修理山水AU-D9    
Fixed many dry joints.

etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-12 14:37
[#124] etsang3 修理山水AU-D9    
Use more MKP for better and more stable sound.

etsang3
個人訊息 會員
202.xxx.xxx.193
2009-08-12 14:38
[#125] etsang3 修理山水AU-D9    
有邊個se-fu 好似etsang3兄肯咁樣整機仲好大方教路,教識你我咪唔洗做生意,出面d人 9 up 點你就大把...........total agree!!

etsang3兄配服唔會收收埋埋......有料到洗乜怕你識!
kenken6
個人訊息 會員
218.xxx.xxx.51
2009-08-15 18:34
[#126] etsang3 修理山水AU-D9    
想修理9500

最後修改時間: 2019-02-22 01:47:26
KK105
個人訊息 會員
219.xxx.xxx.180
2019-02-22 01:42
[#127] etsang3 修理山水AU-D9    
多謝etsang3分享。


最後修改時間: 2019-02-22 18:34:25
cello
個人訊息 正式會員
45.xxx.xxx.237
2019-02-22 18:33
[#128] etsang3 修理山水AU-D9    
好心你們啦, 曾生假假地都工程師, 幫網友修機純粹係助人為本, 興趣咋, 老實講真正靠修機糊口的, 整好便算, 邊有咁好心機同你跟個線路出黎, 仲跟埋其它唔妥之處, 找曾 Sir 修機, 唔該都冇聲, 太沒禮貌了.
254mm
個人訊息 正式會員
58.xxx.xxx.164
2019-02-22 19:52
[#129] etsang3 修理好聲"山水"機一部    
Tsang sir is indeed a real gentleman who is willing to share his Hi Fi knowledge to all of us.

He also shares many useful links to me as a layman to improve my limited technical know how.

My salute to him for his passion and dedication to our Hi Fi community and journey. We are fortunate have him to revive our vintage toys..

Highly appreciated to Tsang Sir!!!!






danzus
個人訊息 會員
182.xxx.xxx.196
2019-02-26 19:53
[#130] etsang3 修理好聲"山水"機一部    
Tsang sir is indeed a real gentleman who is willing to share his Hi Fi knowledge to all of us.

He also shares many useful links to me as a layman to improve my limited technical know how.

My salute to him for his passion and dedication to our Hi Fi community and journey. We are fortunate have him to revive our vintage toys..

Highly appreciated to Tsang Sir!!!!






danzus
個人訊息 會員
182.xxx.xxx.67
2019-02-26 19:53
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