|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
I'm happy to get a manual from this rare old amp. The pdf is from good qualty.
;
very quick service and manual as described - would happily trade here again!
;
Fast Download,all pages present,an excellent copy.THis enabled to find the origional part numbers and chase them up. The cartridge is proving difficult to find but at least I know the origional part number.Thanks to all.
;
The manual was as described. Complete with parts list and technical information. Fast delivery.
 ;
Simple and fast...
The diagrams are clear and legible; i have been a great help.
The site is very reliable and precise thanks.
5. OCP (OVER CURRENT PROTECTION) CIRCUIT
This circuit is designed to protect the circuit from over current due to overload occurred at the rear of 123[V] line 1) CONFIGURATION OF OCP CIRCUIT
2) EXPLANATION OF THE OPERATION There is very little voltage drop at R423 of 123[V] line. In case that the overload occurs at the rear of 123[V] line, the increase of the voltage drop at R423 bring down the base voltage of the Q407 os as to drive the Q407 Because of the overload at the rear of the R423, the voltage of the point decreases. And this makes Q407 turn on so that a voltage is applied to the #31 of l701. In case that OCP operates by the #31 of the l1701, the set is protected by power off (#42 of l1701 LOW).
21
|
|
|
> |
|
