tv repair shop software
 

Software for repair shop
Assist Control



Free trial

tv repair

 Monitor repair forum - Open   
Download schematics and service manuals
See our courses below


 
       
  << Previous Topic | Next Topic >>Go to monitor repair course  

Sony HDM-A220 monitor doesn't turn on

September 7 2005 at 9:16 AM
No score for this post
  (Login embomio)

Hi,
I have a Sony HDM-A220 monitor that doesn't turn on (the power led is off). I found the HOT shorted and replaced it (2SC3997 instead of 2SC5587), with no success.
What else should I check? I appreciate any help.

Thanks,

Enrique

 
Scoring disabled. You must be logged in to score posts.Respond to this message   
AuthorReply

(Login Pen1979)

Re: Sony HDM-A220 monitor doesn't turn on

No score for this post
September 14 2005, 11:30 PM 

wat abwt ur fuse not blow.???
if not...
check filter capacitor firt...if the voltage present..
i think the problem is IC..3842
check the b+ output.....
also check diode for shorted..


 
Scoring disabled. You must be logged in to score posts.Respond to this message   
Richard B
(no login)

Re: Sony HDM-A220 monitor doesn't turn on

No score for this post
September 15 2005, 4:24 AM 

Check Q501.

Rich

 
Scoring disabled. You must be logged in to score posts.Respond to this message   

(Login embomio)

Sony HDM-A220 with no picture

No score for this post
September 16 2005, 3:41 AM 

Thanks Rich,

I've already replaced HOT and Q501 that were both shorted.
When I turn on the monitor +B goes down and +51.9 test point begins to fall, but CN504 voltages(+5/+12/+6.3/+80) are aparently ok. I'll try to replace the filter capacitor.

Enrique


 
Scoring disabled. You must be logged in to score posts.Respond to this message   
Jr.
(no login)

Preciso urgente de esquema

No score for this post
September 16 2005, 12:49 PM 

Necessito do esquema do monitor Markvision VC4968Ni. meu email ´eletronicamultimarcas@htmail.com.

 
Scoring disabled. You must be logged in to score posts.Respond to this message   
Current Topic - Sony HDM-A220 monitor doesn't turn on
  << Previous Topic | Next Topic >>Go to monitor repair course  
   TV repair course   TV repair forum     Monitor repair forum    Monitor repair course