SVI3205 measure and replacement

[albertho]

My old Technics amplifier went dead. I suspected the power IC SVI3205 may blown.
How can I determine?
I read from a book that checking on-board IC can be done by measure the resistance of the chip's individual connector against the ground (positive & reverse). Take the reading and then verify against the resistance value provided by the manufacturer to determine the IC is bad or not.
Is that work?
However, I can only found the chip diagram from the following website but no resistance value found:

http://www.geocities.com/technicshifi/SVI3206.jpg

Could someone kindly provide me the resistance value I want?

Also, I can't find this SVI3205 IC in digikey.ca. Is any model of STK or LM series IC could replace it? I think it's easy to find and must more cheaper.

Thanks in advance for your kind assistance.

[sakis]

belive that procedure like that exists

but in any case you can do the most simple like take a first look that where the out of your chip is per channel you should get 0 volts ...... if in the pin of the out you have any more than 50mv your chip is doomed

when chips are gone ,their output transistors are shoretd resulting DC voltage in the output fo course you dont see any of that since protection relay is activated to protect your speakers

on the other hand normal tests like rail voltage fuses gone and other normal stuff is presumed allready done ...or mayby not ?????

let us know

[albertho]

Dear Sakis,
Thanks very much for your information.
I had performed voltage test on the IC pins. From the diagram found on the net, the output pin should be pin 3 and pin 6.
On pin 3, I got 0V but in pin 6, it was 51.3V.
Also, the diagram shown pin 18 should have 0 to 13V within 4 sec. The test result is only keep -0.1V even held longer than 4sec.
I think the chip was already GONE.
Now I have to look for the replacement, but it is hardly to find on the net.
Thanks again for your help.