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Patches and discussion for Ensoniq VFX family

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Overheat- no output

Overheat- no output

2010-08-17 by lakeys5

My VFX sd has stopped operating .. No main/headphone output ...  The heat sink  is intense HOT  .I opened it up and it appears that a component attached to the H-sink is in question .. the solder is all yellow in color .. no other components appear this way ...
Its a Motorola 7812CT  QKX14....
What is this , and any sugestions on how to repair .

Re: [Ensoniq-VFX-SD] Overheat- no output

2010-08-17 by Rob Rosenbrock

Sounds like a 12V regulator.

On Aug 17, 2010, at 11:32 AM, lakeys5 wrote:

My VFX sd has stopped operating .. No main/headphone output ... The heat sink is intense HOT .I opened it up and it appears that a component attached to the H-sink is in question .. the solder is all yellow in color .. no other components appear this way ...
Its a Motorola 7812CT QKX14....
What is this , and any sugestions on how to repair .


Re: [Ensoniq-VFX-SD] Overheat- no output

2010-08-17 by Ed Talbot

This link may help.
Show quoted textHide quoted text
----- Original Message -----
From: lakeys5
Sent: Tuesday, August 17, 2010 11:32 AM
Subject: [Ensoniq-VFX-SD] Overheat- no output

My VFX sd has stopped operating .. No main/headphone output ... The heat sink is intense HOT .I opened it up and it appears that a component attached to the H-sink is in question .. the solder is all yellow in color .. no other components appear this way ...
Its a Motorola 7812CT QKX14....
What is this , and any sugestions on how to repair .


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