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Posted

Pret: 300 RON


Localitate: Râmnicu-Vâlcea


Contact: cad_consult_ro@yahoo.com


Accept schimburi: Accept schimburi
Vând amplificator combo "Vox Valvetronix AD30VT" aflat in stare estetica foarte buna (nefolosit), dar cu o meteahna: se opreste dupa ~20 de minute de la pornire.

 

Deci poate fi folosit doar pentru "practice", sau pentru piese (difuzor 10", trafo, case, potentiometre, piese electronice, etc).

 

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post-6630-0-13687700-1388758122_thumb.jpg

Posted

http://www.guitarscanada.com/showthread.php?9872-Vox-AD30VT-cutting-out

 

I've worked on several similar amps and many times it's a solder problem. Sometimes during production, the wave soldering machine goes a little too fast under the board and the joints are thin...add a few hours of heat 'n cold and what do you get? Yup, cracked solder joints. I'm not sayin that this is the problem for certain but it is worth checking...particularly around connectors and the power amp transistors themselves

 

__________________________________________________________________________________________________________________________________________

 

I've fixed a couple of these. One was solder joints, the other was simply a memory reset. If you check out some of the vox forums you'll find this is a common problem with this series. The memory chip doesn't always clear itself so you need to do a factory reset to get this working. You'll lose your settings but it worked. The following is from the vox manual

 

1. Turn off the power

 

2. While holding down both the CH and WRITE buttons, turn the power on.

When the CH1 and CH2 LEDs begin blinking, release these two buttons.

HINT: If you decide to abort this operation, press the TAP switch at this point.

 

3. When you press the WRITE switch, the CH1 and CH2 LEDs will change from

blinking to lit. Initialization will be completed in a few seconds, and the amp

will switch to Preset mode.

NOTE: Never turn off the power while initialization is taking place.

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