1) 架CD讀唔到碟或跳線,己半死一樣
2) 最壞倩況, 整壞埋另一半.
3) 拆開機, 拆整組轉盆組件出來, 拔排線插, 拔之前做些記, 一陣唔會插錯.
4) 注視轉盆組件一會, 思考如何去繼續拆.
5) 此時,如冇信心, 仍可返轉頭,裝回組件算了.
6) 本死無大害, 繼續la.
7) 主要是拆條幼鋼柱, 才可把壞的鐳射頭取出.
8) 把新的頭裝返入去, 裝好絛鋼柱, 及落一兩滴潤滑油於鋼柱及齒輪.
9) 小心裝返D排線, 不要裝錯, 分分鐘燒機.
10) 小休一會, 重新檢查有沒有地方出錯.
11) 安裝返整組轉盆組件入機內. 再檢查有冇野做漏.
12) 深呼吸一兩下, 開機, 開櫃桶, 放隻碟入轉盆, 按 PLAY 制, 如順利播碟, CONGRATULATIONS, 你已是師傅啦!
13) Post上來, 多謝.(得唔得?)

Thanks, Master 254mm Lau.

Suggest to take picture (using digital camera, of course) before you disassemble the CD Part, especially for the screw positions.

鐃酮硉P子不同, 唯有自己執生, 用經驗及思考去拆,完全要e大心細, 不怕死精神, 才好自己攪.

next time, when I do the replacement work, I will take photos to illustrate step by step perhaps!!
Ar, sorry Chinese Version,
下次換鐳射頭時, 會取下硬照, 逐步示範, 謝謝觀看.

254mm hing:
you are great

Philip CD1210 Loader, used in all China made CD players.
Philips 中國制CDplayer 轉盆組件 1210 loader
先看看

幫net-friend 換新KSS240A laser head. The fault is always cannot read disk. 毛病是時常不能讀碟, 圖示就是那幼鋼柱, 己拆出

SONY 轉盆組件及壞了的KSS240A, 留意鋼柱己被拆了一半

己裝回新頭及落了潤滑油, 轉盆組件裝回機內, 排線插番好, 準備試機.

正常播碟, 又有茶飲啦, 哈哈!!!

iq007, your MF CD Player is now flawlessly working, awaiting your collection la!!! Thank you
for your trust and support.

254mm hing,

Thank you very much! Salute!

I have cleaned the case for you, it is now like new.

請問係咪有個掣要turn 個頭focus架?

absolutely no need, the heads had been tuned before made available to the market. You can see the three trimmers are sealed by yellow paints and grey paints.

係law我就係見到有幾粒製,如果郁左果粒製聽出來會變左點?
令外想請教一下如果自測試頭有無老化,舊頭同新頭聽出來分別會係點呢?質感?音量?有無其影響?
thx

the trimmers are tuned at factory for maximum
readability. So no one would be so foolish to attempt to tune them. Especially the KSS240a, there are three trimmers onboard, you can hardly
tune it yourself without the help of scope and test-cds. I can tell you, for all the laser heads that I have, they are already tuned to their best performance at factory, no need to calibrate anymore.

the sound quality differs only a little, I believe, but the readability and stabilability of the heads deterorate much when they are getting old. So the only best solution is renew the laser head.

254mm兄
唔好意思睇唔明打中文可以嗎...thx^^

個鐳射頭出廠時已調了最佳讀碟能力, 無需再調, 因用耐了, 鐳射頭退化, 開始讀碟有問題或跳線, 因配不到新頭才局住調頭的工作點. 如圖, KSS240A出廠己調了3譟L調及搽了黃漆, 廠是用試音碟及示波器來調, 自己很難調到準, 至於聲音有沒有變化己失去重要性, 可能變差些少,但誰能忍受架機揀碟播彧跳線.