View previous topic :: View next topic |
Author |
Message |
tedy Guest
|
Posted: Mon May 30, 2005 4:10 am Post subject: Sharp reciever power supply problem, Help |
|
|
Hi, I have got a sharp reciever, but now it's dead. there is no any power. when i checked it, there is power up to primary of the power supply but there is no any power in the secondary. what can be the fault. help me plz. |
|
Back to top |
|
|
Bradz1234
Joined: 30 May 2005 Posts: 1 Location: California
|
Posted: Mon May 30, 2005 6:58 pm Post subject: power supply question |
|
|
Hi
when you say primary of the power supply, what specifically?
Is this a switching or linear supply?
Usually Ive found that a regulator has croaked along with some large resistor in its nearby vicinity.
Other times if its a smart machine, it will use a serial data bus to the power supply, and all major components in the circuitry and if something is zapped it will tell the power supply to stay OFF.
In that case, a section that does heavy current work like audio output could have a shorted stage keeping the power supply off. |
|
Back to top |
|
|
tedy Guest
|
Posted: Tue May 31, 2005 3:55 am Post subject: |
|
|
hey thanks for help the power supply is switch mode power supply. Now the problem is that there is power present in the primary stage but there is no any power in the secondary, so the reciever is not getting power. help plz |
|
Back to top |
|
|
Guest
|
Posted: Wed Jun 01, 2005 5:02 pm Post subject: |
|
|
tedy |
|
Back to top |
|
|
tsgunnell
Joined: 03 Jun 2004 Posts: 49 Location: middx england
|
Posted: Wed Jun 01, 2005 5:17 pm Post subject: |
|
|
hello tedy could you please state what model it is.but for now you could start checking the resistors to find whether the start up circuit is working |
|
Back to top |
|
|
tedy Guest
|
Posted: Fri Jun 03, 2005 1:13 pm Post subject: |
|
|
the model of the reciever is Sharp, AF7001.
tedy |
|
Back to top |
|
|
tedy Guest
|
Posted: Tue Jun 07, 2005 3:55 am Post subject: |
|
|
help me plz, i am getting voltage in the primary of the power suply but nothing at secondary. the model of the reciever is Sharp, AF7001. |
|
Back to top |
|
|
|
|