Tube Safety Control (Tsc™) - Hughes & Kettner TubeMeister Deluxe 40 Bedienungsanleitung

TubeMeister 40 Deluxe – Manual 1.3b
The factory default settings and assignments for sounds are:
MIDI Progr. Preamp Channel
1
Clean
2
Crunch
3
Lead
4
Clean
5
Clean
6
Crunch
7
Lead
8
Clean
9
Clean
10
Crunch
11
Lead
12
Clean
13
Clean
14
Crunch
15
Lead
16
Clean
4 Tube Safety Control (TSC™)
you to do but enjoy the convenience of the system. Swapping tubes is
more easily, quickly, and safely done than with a conventional amp. This
is a big help not only in case of a defect, but also when you want to
compare different brands of replacement tubes.
™
TSC
Caution: Replacing tubes is a job for qualified professionals! TSC™ merely
spares the technician the biasing effort.
What do the LEDs indicate?
Each LED is assigned to the power tube occupying that same position.
Getting a read-out of tubes' operating status and bias points is easy using
any standard guitar pick.
8
Output Power FX Loop
40 W Off
40 W Off
40 W Off
0 W Off
20 W Off
20 W Off
20 W Off
0 W Off
5 W Off
5 W Off
5 W Off
0 W Off
1 W Off
1 W Off
1 W Off
0 W Off
TSC™ adjusts bias to improve the
amp's tonal and technical stability
and extend power tubes' lifespans.
It does this automatically
continuously, so there is nothing for
4.1 Automatic Status Indications
All LEDs Light Up And Stay On
All LEDs remain on for as long as the amp is in standby mode. When
you flip the STANDBY switch to PLAY, they will extinguish after about 30
seconds. If the LEDs remain illuminated, the most likely cause is a blown
anode fuse that needs to be replaced by a technician. The anode fuse can
trip if a tube is already defective when the amp is switched on, and TSC
does not have enough time to measure idle current and shut the faulty
tube down.
None of the LEDs Lights Up
The power tubes are operating normally.
One LED Lights Up Continuously
The tube assigned to this LED is not delivering enough current and has
been shut down. If the LED does not extinguish after a few minutes, this
tube must be replaced.
Two LEDs Light Up Continuously
This tells you one of two things: Either these tubes are not delivering
enough current and have to be replaced (see the instructions for one
illuminated LED), or the Power Soak is active. In the latter case, two
tubes are switched off automatically and the two illuminated LEDs are
indicating this.
One LED Flashes, Another Lights Up Continuously
The tube assigned to this flashing LED is generating too much current. It
has been shut down and has to be replaced. In this type of power amp,
it takes a pair of tubes working together to produce the best sound. The
defective tube's counterpart has been switched off so it doesn't degrade
the other pair's tone. This tube's LED lights up continuously to indicate
it has also been shut down, but there is no need to replace it. You can
continue playing, though output is halved from 40 to 20 watts for as long
and
as the LED remains illuminated. If this occurs in a conventional amp, its
fuse usually trips and you can't operate it until you replace the tube and
fuse.
4.2 Manual Read-Out
TSC™ checks tubes' bias points to let your determine if pairs match. This
is easily done by inserting a pick into the appropriate slot while the amp
is on (rather than in Standby mode). The LEDs will flash. How many times
the LEDs flash matters, but what matters more is the difference in flash
counts. TSC will ensure optimum sound if the difference is no greater
than four flashes. If the difference in flash counts is greater than four, we
recommend installing a matched set of tubes to improve the tone. This is
strictly a matter of tone - technically speaking, the amp will continue to
operate safely.
Heads Up: The two inside tubes and the two outside tubes are matched
pairs. If just a single tube is swapped, ensure the replacement tube's rating
matches that of its counterpart. If all tubes are replaced, ensure they all
share the same ratings.
The table below shows Hughes & Kettner tube ratings and how flash
counts translate to a rating. For example, if the TSC display flashes six
times you need a tube with an S2 rating. The chart also tells you that its
bias point is set to 13 volts. You can buy a replacement tube from your
local dealer. The original Hughes & Kettner rating (S1-S7, 0-12) is shown
on a sticker on the tube.