electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
Sony HCD-NE5 doesn´t turn on

 
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs
View previous topic :: View next topic  
Author Message
Frank B
Guest





PostPosted: Thu Jul 17, 2008 1:17 am    Post subject: Sony HCD-NE5 doesn´t turn on Reply with quote

[b] Basically, the problem is that the led indicator is always turn on and off continously. I alreday check the Protect signal and I think it is the problem, but really I don´t know where this signal cames. I already have replaced the Audio output IC but the problem still is present.

Do you have any suggest??

BR
Back to top
vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Thu Jul 17, 2008 2:18 am    Post subject: Re: Sony HCD-NE5 doesn´t turn on Reply with quote

Frank B wrote:
[b] Basically, the problem is that the led indicator is always turn on and off continously. I alreday check the Protect signal and I think it is the problem, but really I don´t know where this signal cames. I already have replaced the Audio output IC but the problem still is present.

Do you have any suggest??

BR


Not familiar with the specific model but the blinking LED with Sony's compact audio systems(too many models) is almost always a power supply problem.--NOT an audio o/p IC problem. If you monitor your standby, you will notice it being erratic because of too much AC component.
You are likely to have one or several dried up electrolytics in power supply.--used to see it all the time.
_________________
Back to top
View user's profile Send private message
Frank B
Guest





PostPosted: Thu Jul 17, 2008 2:26 am    Post subject: Re: Sony HCD-NE5 doesn´t turn on Reply with quote

Hi! Vtech,
Thanks for your comment about. Let me check the power supply! I have a question, Do you know which componen provided the protect signal in this audio system??

BR

Frank B
Back to top
vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Thu Jul 17, 2008 5:15 am    Post subject: Re: Sony HCD-NE5 doesn´t turn on Reply with quote

Frank B wrote:
Hi! Vtech,
Thanks for your comment about. Let me check the power supply! I have a question, Do you know which componen provided the protect signal in this audio system??

BR

Frank B

without the schematic can't tell you but as far as protection for DC on the outputs, it is usually monitored by one or two txistors & sent in as a signal to protection pin on the main micro. I am not sure about your specific model but, most will flash "protect" on the display if/when in protect mode.
_________________
Back to top
View user's profile Send private message
Justmanuals



Joined: 21 Aug 2004
Posts: 1949

PostPosted: Thu Jul 17, 2008 2:17 pm    Post subject: Reply with quote

This Parts & Service manual can now be purchased for $9.99 and downloaded immediately after payment from http://www.justmanuals.com


[email protected]
_________________
Want To Fix Something?
http://www.manuals4you.com

Need a manual now? Instant Download
http://www.justmanuals.com
Back to top
View user's profile Send private message Send e-mail
Frank B
Guest





PostPosted: Thu Jul 17, 2008 8:58 pm    Post subject: Re: Sony HCD-NE5 doesn´t turn on Reply with quote

vtech wrote:
Frank B wrote:
Hi! Vtech,
Thanks for your comment about. Let me check the power supply! I have a question, Do you know which componen provided the protect signal in this audio system??

BR

Frank B

without the schematic can't tell you but as far as protection for DC on the outputs, it is usually monitored by one or two txistors & sent in as a signal to protection pin on the main micro. I am not sure about your specific model but, most will flash "protect" on the display if/when in protect mode.


Great!! thank you very much for your comments. Now I have a good start trying to fix my Sony.

BR

Frank B
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs All times are GMT
Page 1 of 1

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Електроника София - Service Manuals Free Download - Prikachi - Service Diagrams

Free TV Schematics Download - HARDW.net - Pinout Master - Jabse Search - Jabse.InK  - Pulsator

Connector Pinout Forum - Новини - SnimkiOt.com - безплатен DNS - Whois разузнаване - Poblizo.com : пътешествия