標題: MHZS CD 33/66/88 CD 盤問題 [打印本頁] 作者: alfcat 時間: 2008-8-14 22:09 標題: MHZS CD 33/66/88 CD 盤問題 各位 MHZS用户, 請問你部 CD33/66/88有無讀唔到碟的問題出現? 例如放了碟入去之後話 No Disc, 退番你隻碟出來, 讀來讀去都找不到 Track 0 .....
CAT作者: DUALXEON 時間: 2008-8-15 03:20
Cat Sir
Yes, I have
1 forgot connect internal cable
2 cd head dead作者: alfcat 時間: 2008-8-19 19:48
得 DualXeon 兄一個人回覆, 真奇怪 ... 我重以為香港有好多MHZS用家 ....
CAT作者: SSWONG 時間: 2008-8-21 10:27
For no disc :
1st case:
ribbon cable got hair line break
2nd case:
the connector for ribbon cable at pcb board deformed and cause bad connection --> change the connector then ok.
3rd case:
Laser head die --> change laser head --> ok
Disc tray can't move out after press eject:
check the cable connected from pcb board to the CD tray motor, this cable should be soft and move easily if not it will restrict the movement of the tray...(i think to motor power very small so little bit of restriction will block the tray's movement)作者: alfcat 時間: 2008-8-21 11:26
I still got one funny situation. The CD spins in the OTHER direction !
And one more case is the Laser Lens jumping up and down like doing Disco dancing. Of course it can't locate the first track or the TOC.
I have tried changing the Cable, the Laser Head Unit and checked all other cables ... still can't solve the problem.
CAT作者: SSWONG 時間: 2008-8-22 11:36
i had the problem of spinning in opposite direction previously, after change the connector then ok already.
the original ribbon connector on pcb very loudsy, u just take a look at it, u can replace it using the connector on a damge kss-213s or q also can.
u just plug out the ribbon cable and check whether the center spacing of the connector is straight & even? even a little bit of deformed it will give the problem.
solder out the 16pin cennector a bot cumbersome, and u hardly get this part, easier way to to take it from and used/damge cd pickup...
god bless my player recently don't have eject problem, no disc problem for several months....作者: alfcat 時間: 2008-8-23 16:23
WINDWSS,
I have changed that cable already and I double checked other cables connecting to the CD tray with a multi-meter as well. All cables seem to work fine (of course I have to take them out first). That is why I feel strange about this CD player.
Just wonder whether the SONY CD drive is a poor designed one.作者: SSWONG 時間: 2008-8-26 13:16
i last time also use multimeter to check it read ok but it won't work, can u take the picture of you ribbon connector, top view.
hmm, i had recheck my preamp... u r right the microphonics is from the tube.....作者: alfcat 時間: 2008-8-27 10:00
Dear ALL,
I went back to 深圳 on Monday and talked to the Dealer of MHZS there. He said I can take the Power Supply board back to him and he will take it to the MHZS factory for a checkup FREE of charge.
I will take my friend's board up when I have time to go there again, probably in late Sept.
CAT作者: alfcat 時間: 2008-8-27 10:01
WINDWSS,
I sold the CD33 out as spare parts 4 months ago. I am now using CEC Belt Drive + Transport.
CAT作者: SSWONG 時間: 2008-8-27 17:15
i also wish to turn to CD transport later but until now still not able to find a suitable DAC.
1541A is too soft, no ohmmm for me, i don't like its bass... DAC-AH is harsh at HF and emphasis too much on the mid....作者: alfcat 時間: 2008-8-28 12:55
The CEC combo I am using is OKAY. I can't say too much about it as I haven't listen to many DACs.
But indeed, if I use the Coaxial cable instead of the superlink cable, there is a significant difference.
CAT作者: SSWONG 時間: 2008-8-29 10:26
bad luck ...my transformer in my tube preamp gone due to lightning....作者: alfcat 時間: 2008-8-30 20:55
Oh, that is really terrible. I hope that is the only item that has been damaged.作者: accphoto 時間: 2008-8-30 23:36
FOr DAC, I recommend Lite DAC-60, cost only HKD 2,500 but a lot of room for modification. Once modified, it can ko DAC of ten of thousand dollars. ......作者: alfcat 時間: 2008-8-31 16:39
I think the price of the DAC-60 is much higher now because of the appreciation of the Chinese YEN.
The last time I went back to ShenZhen, the dealer said RMB $ 2300 or so. And we have to pay RMB $ 120 for shipping down to Hong Kong.
Accphoto, how much did you invest into the DAC-60? I think those on the left are "Airlink" transformers .... we can't find them anymore now .... Too bad.
CAT作者: accphoto 時間: 2008-8-31 17:48
Actually, it is still HKD 2,500. It is cheaper to buy in HOng Kong than in China.作者: alfcat 時間: 2008-8-31 20:10
Dear Accphoto,
Where can I get it at HK$2,500?
One day, I will get one and modify it to make a comparison with the CEC DAC. But I think you invested over HK$ 4K into the DAC-60, excluding the original HK$2.5K.
CAT作者: accphoto 時間: 2008-9-1 10:31
Call 源哥。I can borrow mine to you first for a few days before you make the decision. I do guarantee that there is a significant difference..... ^_^........作者: alfcat 時間: 2008-9-1 11:38
This month's budget already exhausted!! Invested over $ 3K for all those cables (tho' it is worthy and a long term investment). I can still borrow the DAC from you but no money left for DIYing.
Don't forget our project, ha...ha... I still have to pay you by the end of this month!