| |

Kaosun's CD Players

 Forgot password?
 Repair!
Search
View: 2120|Reply: 8

D515 no laser

[Copy link]

236

Threads

399

Posts

2737

Credits

Administrator

Rank: 9Rank: 9Rank: 9

Credits
2737

 United States

Post time: 2016-06-06 09:58:17
| Show all posts |Read mode
A D515 dosen't read disc. Inspection indicates the laser doesn't work and no beam emits. After measuement, a dual transistor Q452 (xn4504) is found broken. Later it's replaced.
There're a few SMT 220uf caps are also replaced. Can you find them?


This post contains more resources

You have to Login for download or view attachment(s). No Account? Register

x
Reply

Use magic Report

0

Threads

2

Posts

21

Credits

Newbie

Rank: 1

Credits
21

 China

Post time: 2016-09-19 18:26:20
| Show all posts
very good
Reply

Use magic Report

0

Threads

5

Posts

85

Credits

Member

Rank: 2

Credits
85

 Hong Kong

Post time: 2016-10-23 19:39:23
| Show all posts
本帖最後由 Cyhui 於 2016-10-23 20:14 編輯

Good Morning ,Mr Kaosun,
My D515 have same issues,when I open the machine found that Q452 was
burn down , I have try to replaced Q452 (xn4504),but fail still not working no laser beam come out , would you please give me some idea?  thankyou for your support.

Reply Support Not support

Use magic Report

236

Threads

399

Posts

2737

Credits

Administrator

Rank: 9Rank: 9Rank: 9

Credits
2737

 United States

 Author| Post time: 2016-10-24 09:44:11
| Show all posts
Just follow the post and check them step by step to see what else is down. Are you sure you replaced an identical XN4504?
Reply Support Not support

Use magic Report

0

Threads

5

Posts

85

Credits

Member

Rank: 2

Credits
85

 Hong Kong

Post time: 2016-10-25 06:32:04
| Show all posts
kaosun 2016-10-24 09:44
Just follow the post and check them step by step to see what else is down. Are you sure you replaced ...

Good Morning Mr.Kaosun

Thank you for your quick reply

Today I had replaced another XN4504 still not working . when I plug in power with origin sony 9V power supply . I  smell bad  than found it XN4504 burn out again .  would you have any idea or suggestion ? thankyou for your support .


This post contains more resources

You have to Login for download or view attachment(s). No Account? Register

x
Reply Support Not support

Use magic Report

236

Threads

399

Posts

2737

Credits

Administrator

Rank: 9Rank: 9Rank: 9

Credits
2737

 United States

 Author| Post time: 2016-10-27 11:34:33
| Show all posts
If your XN4504 burn out, pls check Q451 XN4601 which is a PWM driver. If it shorted inside, it'll output DC to your xn4504 so that it dies.
Reply Support Not support

Use magic Report

0

Threads

5

Posts

85

Credits

Member

Rank: 2

Credits
85

 Hong Kong

Post time: 2016-11-07 19:44:18
| Show all posts
本帖最後由 Cyhui 於 2016-11-07 19:48 編輯

Dear Master  Kao

Waiting long long time for XN4601 and arrived yesterday,I had replaced XN4504 and XN4601 ,after replacment everthing ok but the laser still not beam on. Anyway I will recheck again and come back will you .

Thankyou !

Reply Support Not support

Use magic Report

0

Threads

5

Posts

85

Credits

Member

Rank: 2

Credits
85

 Hong Kong

Post time: 2016-11-23 20:31:25
| Show all posts
本帖最後由 Cyhui 於 2016-11-23 22:41 編輯

Dear Master Kao

After reinstall all XN-4504 and Xn4601 and SMD220UF Cap ,the machine now work fine

thank you




This post contains more resources

You have to Login for download or view attachment(s). No Account? Register

x
Reply Support Not support

Use magic Report

236

Threads

399

Posts

2737

Credits

Administrator

Rank: 9Rank: 9Rank: 9

Credits
2737

 United States

 Author| Post time: 2016-11-24 14:03:32
| Show all posts
Reply

Use magic Report

You have to log in before you can reply Login | Repair!

Points Rules

Archive|Mobile|Dark room|Kaosun's CD players

2017-11-23 20:04 GMT-6 , Processed in 0.017294 sec., 14 queries .

Powered by Discuz! X3.2

Release 20141225, © 2001-2017 Comsenz Inc.

MultiLingual version, Rev. 441, © 2009-2017 netdepviet.org

Quick Reply To Top Return to the list