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Old 4th September 2011, 08:05 PM   #1
jtubio1 is offline jtubio1  Argentina
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Join Date: Jun 2010
Default Technics SU-V40

Dear friends: I have an old Technics SU-V40 Class AA, recovery from dump, based on SVI4003 power amp IC plus 2SC3298 / 2SA1306 power transistors.
It does not work and I want to fix. Anybody has the manual service / repair book?. I am reading similar threads and I have a question on the SVI replacement: Is SVI same that
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Old 4th September 2011, 08:45 PM   #2
Previously: Kuei Yang Wang
 
Join Date: Nov 2002
Hi,

Quote:
Originally Posted by jtubio1 View Post
Dear friends: I have an old Technics SU-V40 Class AA, recovery from dump, based on SVI4003 power amp IC plus 2SC3298 / 2SA1306 power transistors. It does not work and I want to fix.
Hint.

Gut it, build an LM3875TF based gainclone in the chassis using the transformer, heatsink etc.

It will sound better and not cost much.

Ciao T
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Old 6th September 2011, 12:09 AM   #3
jtubio1 is offline jtubio1  Argentina
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Join Date: Jun 2010
Default SVI4003 Technics IC power amplifier

Hi all, In the before reply I want to do this answer: Is same SVI4003 that STK4003?
Thanks in advance, Jorge
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Old 6th September 2011, 08:57 AM   #4
jaycee is offline jaycee  United Kingdom
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Join Date: Apr 2004
Location: Norwich, UK
No. The STK4003 is a complete power amp on a chip. The SVI4003 is just the small-signal stages that uses external power transistors. If I remember correctly it was made specifically for Technics. The SVI was the weak point which often overheated and failed.

A replacement will be difficult to get.
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