G DEC FENDER AMP MANUAL THIS ARTICLE

G Dec Fender Amp Manual This Article

OEM JDM Passenger Left Side Fender - 98-05 Toyota Aristo Lexus GS300 G Japan.I hate these micro-controlled bollox amplifiers with a passion. •JSTOR (July 2015) (Learn how and when to removeWas: 2001 Lexus GS430 & GS300 Factory Repair Manuals All Trim Lines 3. Unsourced material may be challenged and removed.Find sources: 'Fender G-DEC' news Please help improve this article by adding citations to reliable sources. Fender g dec 30 manual This article needs additional citations for verification.

RTFM, or better yet, buy an amp with just a volumeI currently have a 4 x 6L6 Fender in for repair that has uP controlled bias,FFS !! What a load of utter nonsense. Well that's because it's the way you set it before saving andSwitching off, you moron. Just aCouple of weeks ago, I had a Vox Valvetronix combo in that said 'comes onVery quiet'.

We're currently trying to persuade> Fender to tell us if this board is available even, let alone its price. The bias is supposed to be controlled by four> PWM signals driving transistors, but of course, as there is no clock, these> drives are missing with the result that the output grids are all at -89> The board that this lot is all on is utterly unrepairable, with SM> components the size of gnat's cocks. What on earth was the designer> thinking of, or his supervisor when he approved it ? The micro is currently> doing absolutely nothing - not even any clock present, although the 3.3> volts is present on the chip. > I currently have a 4 x 6L6 Fender in for repair that has uP controlled bias,> FFS !! What a load of utter nonsense. We're currently trying to persuadeFender to tell us if this board is available even, let alone its price. The bias is supposed to be controlled by fourPWM signals driving transistors, but of course, as there is no clock, theseDrives are missing with the result that the output grids are all at -89The board that this lot is all on is utterly unrepairable, with SMComponents the size of gnat's cocks.

The trick circuit allows allows H&K to use a small toroidal output tranny - cos it keeps bias balance spot on.Had one of the little horrors on the bench back in July, dead because the heater fuse had blown. 'Yep, a tiny SMD board adjusts the idle current and, if out of range, even biases off the particular valve. An built-in tube technician.

Going from NOS RCA 6L6GCs to Russian 6L6wxts or 5881s and Chinese made KT66s etc with no need to see a tech is a big selling feature.That H&K model even allows the user to change from EL34s to 6L6s.However, the system cannot cope with faulty valves and may even be damaged by them OR fail totally like you found. But if that means a setting way off centre the valves are bad.Read the blurbs I posted, the auto bias system is there to allow the user to change valves from old to new or from one brand to another and know the bias will be correct. ** On many Fender models (egs 135W twin and Super Twin) you can set the bias balance by monitoring the residual 100Hz hum at the output. On amps that have a bias balance preset, you have to set> it a long way off before you can hear much effect, and even then, it's> usually only a slight increase in background hum level.

Results are often dramatic.IME having guitar players fool around putting valves in their amps is full of traps & hazards - owners are bound to fall into one sooner or later.