8
21. EXTERNAL SPEAKER OUTPUT jack
This is for connecting to another speaker cabinet using speaker cable with a 1/4”
monaural plug. In this case, the sound is not reproduced from the speaker in the
TB50R cabinet. The TB50R can be connected to speaker cabinets with imped-
ances from 16
Ω
to 8
Ω
.
NOTES:
Do not allow the impedance of the speaker system you are connecting to fall
below 8
Ω
, otherwise, the load on the amp will be excessive and damage may
result. Also, take note of the allowable input of the speaker system to be con-
nected.
The TB50 output power varies according to the connected speaker impedance
as follows.
16
Ω
: 25 W 8
Ω
: 50 W
To ensure the safety of your system, please refer to above figures and be certain
that your speaker system has more than enough capacity to handle this output.
22. FUSE holder
When a fuse is blown, there may be major damage to the internal circuitry.
Before changing fuses consult your dealer.
23. AC IN
This socket is for the AC cable (included). DO NOT use any input voltage other
than indicated on the panel.
Troubleshooting
1. The power supply cannot be switched on.
• Check that the power cable has been connected correctly.
• Try plugging it into a different socket and see if the same problem
occurs.
2. The power supply can be switched on, but no
sound is heard.
• Check that the guitar has been connected correctly.
• Remove any external components connected to the effects loop
and between the guitar and the amplifier and check to see if any
sound is heard.
• Use a different shielded cable and check to see if any sound is heard.
• Check to see if the volume on the guitar is set to “0”.
• Use a different guitar and see if any sound is heard.
• Check to see if the volume on the amplifier is set to “0”.
• Check to see if the headphones are connected.
3. Noise is heard.
• Check to see if anything in the immediate vicinity is resonating or
banging against the amplifier to produce the noise.·
• Check to see if the plug cover on the shielded cable is loose.
• Use another guitar, effects or other external components, and cable
to see if the same noise is produced.
4. BOOST switch, channel switch, or MID SHIFT
switch does not function.
• These panel switches are disabled if a footswitch or cable is con-
nected to the corresponding footswitch jack.
5. It is not possible to switch between channels with
the foot switch
• Check that the foot switch jack is connected correctly.
6. No sound is produced in the headphones
• Check that the headphones are connected correctly.
• Connect another set of headphones and see if sound is produced.
7. No sound from speaker connected to the EXTER-
NAL SPEAKER jack.
• Check to see if the headphones are connected.
In case of defects
This product has passed exhaustive inspections before being shipped
from the factory. Ensure that the above procedures are carried out
when a problem is thought to exist. Contact your dealer in the unlikely
event that an abnormality occurs during use. Also, ensure that the
symptoms of the problem are explained in detail when requesting re-
pair in order to facilitate swift handling.
Because of improvements to this product, the specifications may change
without notice.
ENGLISH
